An anti-theft device for pressure bar of pumping unit
A technology of anti-theft device and pumping unit, which is applied in building locks, wellbore/well components, buildings, etc., can solve complex disassembly and assembly problems, achieve convenient disassembly and assembly, and improve anti-theft performance
Active Publication Date: 2022-06-24
SANYA GANTAI PETROLEUM MASCH TECH CO LTD
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Problems solved by technology
[0004] The pressure bar anti-theft device of this structure is relatively complicated to disassemble due to the existence of the gland 2'
Moreover, there is a risk of sawing off the fastening bolt 12' below the pressure plate 1', and there is a gap between the pin lock upper cover and the inner sleeve 7' at the same time, and the thief can use a rod or stick with certain elasticity and hardness ( For example, a bamboo stick) from the gap between the upper cover of the pin lock and the inner sleeve 7' to pry into the gap between the eccentric sleeve 8' and the lock cylinder screw 4', so that the eccentric sleeve 8' can be rotated without special tools
Method used
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[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.
[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
[0042] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification.
[0043] In all examples shown and discussed herein, any specific values should be construed as illustrative only and not limiting. Accordingly, other instances of the exemplary embodiment may hav...
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The invention discloses an anti-theft device for a pressure bar of an oil pumping unit, which comprises a pressure plate, an anti-theft lock mechanism and a connecting mechanism; The eccentric sleeve includes a thread fitting part and a shell fitting part, and the shell fitting part is located between the lower limit protrusion and the upper limit protrusion; the first upper cover is matched with the side of the mating segment away from the fitting segment; the connecting mechanism It includes a connecting screw and a second upper cover, and the second upper cover is matched with the fixing part of the connecting mechanism; the connecting screw includes a core piece and a sleeve. The anti-theft device for the pressure bar of the pumping unit of the present disclosure does not have a gland, which is convenient for disassembly and assembly, and the anti-theft lock mechanism is set as a closed structure, and at the same time, the core part of the connecting screw is set as a ceramic material, which reduces the chance of the connecting screw being sawn off. risk, thereby effectively improving the anti-theft performance of the pressure bar anti-theft device of the pumping unit.
Description
technical field [0001] The invention relates to the field of anti-theft for oil pumping units, and more particularly, to an anti-theft device for pressure bars of oil pumping units. Background technique [0002] In order to effectively avoid the problem of theft of the pressure bar of the pumping unit, the pressure bar anti-theft device is provided on the pressure bar to realize theft prevention of the pressure bar. [0003] like figure 1 As shown, the existing oil pumping unit pressure bar anti-theft device (CN202628043U) includes: a pressure plate 1', a tightening bolt 12', a pressure cover 2' and an anti-theft lock. The pressure plate 1' is provided with a tightening bolt 12', and the tightening bolt A compression nut 13' is arranged on the 12', the compression cover 2' is fastened on the compression nut 13', and the compression cover 2' is screwed and fixed on the pressure plate 1' through an anti-theft lock. The anti-theft lock includes a positioning sleeve lock body ...
Claims
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IPC IPC(8): E21B43/00E05B65/00E05B15/16E05B15/00
CPCE21B43/12E05B65/00E05B15/00E05B15/1614
Inventor 王彪杨成全
Owner SANYA GANTAI PETROLEUM MASCH TECH CO LTD