The structure of the core barrel is generally divided into single - acting double core tube and most of the fishing apparatus. The double tube section consists of an outer tube assembly and an inner tube assembly. The outer pipe assembly includes; The main structure and working principle of the cartridge stopper, cartridge chamber, stable joint outer pipe, diamond reamer and diamond bit are as follows:
(1) Spear structure is composed of spear head and recovery spring. When coring, the fishing device is lowered to the upper part of the inner tube assembly in the drill pipe, and the fishing hook grasps the fishing spear, lifts the fishing device up, picks up the recycling card barrel, and inwardly compressing the cartridge card, so that the inner tube assembly and the outer tube are separated, so that the inner tube assembly is lifted up.
(2) The clip structure is mainly composed of the clip frame, clip, spring and other components. Its function is that when the inner tube sits on the outer tube, the clip expands with the help of the elastic force of the expansion spring and sticks to the inner wall of the clip chamber, so that the drilling tool can achieve positioning.
(3) Buffer structure by spring, locking mother, split pin composition. Protecting the inner tube when pulling the core.
(4) Single action structure is realized by two pairs of thrust bearings.
(5) Adjust the length of the inner pipe assembly and the outer pipe assembly of the structure, and fine-tune the lower shaft and the locking mother to achieve the gap required by the end of the spring seat and the step inside the drill bit.
(6) The fishing structure, also known as the fishing device, is mainly composed of fishing hook, hammer and safety rope. The fishing hook is used to hold the spearhead while fishing the inner pipe, and the weight is used to speed up the fishing device's descent to save fishing time. The safety rope is a thin rope. When the inner pipe is stuck for some reason and cannot be lifted, the safety rope can be forcefully lifted and then the drill can be lifted.
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The timing of promotion should be a decisive factor that influences the activities, but it must be the precondition for deciding whether or not to carry out promotional activities. Taking the Fuzhou region of Jiangxi Province and some counties in the Ganzhou region as examples, the first half of August was a local traditional ghost festival. Residents believed in this and even reached the level of worship. During the period, it is generally very rare to go out for shopping. Such as launching promotional and promotional activities during this period, it is tantamount to a drop in sales and is an invalid promotion. In addition to the irresistible factors, for the foreseeable elements, it is necessary to ensure thorough consideration and countermeasures.
Promotional gifts are decent and well-known, the choice of promotional items is very particular about, but also very knowledgeable. Appropriate promotional items can be prepared to convey the purpose and message of promotional activities for promotional purposes. No matter how good promotional gifts can not be accepted by the market, it is also an invalid promotion. If a consumer habitually accepts a specific promotional gift or measure, such as a blunt change, it is counterproductive. Taking another place in Jiangxi as an example, consumers tend to be rational because the consumer market in the area tends to be mature. A well-known brand uses a car-giving event, and the market feedback actually believes that its promotion is equivalent to a miscellaneous car sales promotion. There is no innovation, and the strategy is lacking. This can be imagined as a promotional effect, and the brand image is also greatly reduced. It can be said that "losing his wife and breaking the army," is undoubtedly the failure to promote the list.
Therefore, before launching promotional activities, consumers must conduct consumer behavior surveys. Although this move has a certain degree of difficulty for a unified promotion, proper reference and reference can be wise.
Promotion strategies should be understood as methods, techniques and techniques that should be consistent with local users' accepted methods and habits. If users think that direct promotional gifts are more attractive, gift promotions are more appropriate; if test riding methods are popular, test riding methods will be strongly promoted and used as mainstream promotion measures; Directly stimulating consumer demand and achieving purchase behavior, regular, in-depth sales promotion activities at the sales terminal, should be a regular promotion strategy. In addition, it is a good strategy to carry out activities in the form of services or public relations methods such as “attacking the city and plundering the poolâ€. In short, promotional strategies must be synchronized with market demand.
A successful promotion should be integrated with time, location, people, and other elements. It should be feasible, innovative, and effective, and the promotion cost must be proportional to the effect. Feasibility and effectiveness are the basic requirements for promotion planning. Innovation is based on the basic elements of promotion. It is also the soul of promotion planning.
Today, when marketing is heavily homogenized, it is particularly necessary to do a good job of planning the basic elements. Promotional targeting is also based on a rational analysis of basic elements. Therefore, we can think that targeted promotions are the prerequisite and key to successful promotions.
Ceiling companies to do marketing must be targeted
From the actual sales situation of the ceiling market, it can be described as mixed, and some markets are even suspected of having side effects. This kind of phenomenon is worth pondering, combining the promotion cases of integrated ceilings in the past year or two and the author's understanding of the market, feedback and thinking that the promotion must be targeted.