Fixing device for crude oil mining
A fixing device, crude oil technology, applied in the direction of locking fasteners, threaded fasteners, screws, etc., can solve problems such as pipeline vibration, loose clamps, loss of connection and fixed pipelines, etc., to increase the contact surface and improve stability sexual effect
Inactive Publication Date: 2018-05-29
CHENGDU DAMO PETROLEUM TECH CO LTD
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Problems solved by technology
[0007] The purpose of the present invention is to provide a fixing device for crude oil excavation to solve the problem that with the transportation of the fluid in the pipeline, the fluctuation of the fluid will drive the pipeline to vibrate, and then the nut will rotate relative to the bolt, causing the clamp to loosen and lose its function of connecting and fixing the pipeline question
Method used
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Embodiment 1
[0030] Such as Figure 1-Figure 5 As shown, the fixing device for crude oil excavation of the present invention includes two joints 1, bolts 2 and nuts 3, one end of the joints 1 is hinged to each other, and the ends of the bolts 2 pass through the ends of the two joints 1. The other end is threaded with the nut 3 after the nut 3. On the end surface of the nut 3 close to the head of the bolt 2, a locking groove 4 is arranged. The extension axis of the locking groove 4 is perpendicular to the axis of the nut 3. 4 is provided with a locking rod 5, the cross-sectional area of the locking rod 5 gradually increases from one end to the other end along the axis of the locking rod 5, and the cross-sectional area of the locking groove 4 is larger than that of the locking rod. The minimum cross-sectional area of 5 is smaller than the maximum cross-sectional area of the locking rod 5.
[0031] When in use, first hug the connecting head 1 to the pipe to be connected, then the end...
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The invention discloses a fixing device for crude oil mining. The fixing device comprises two connectors, a bolt and a nut. One ends of the connectors are hinged with each other. The tail end of the bolt penetrates through the other ends of the two connectors and then is in threaded connection with the nut. Clamping grooves are formed in the end face, close to the head of the bolt, of the nut. Clamping rods are arranged in the corresponding clamping grooves. The cross sectional area of each clamping rod is gradually increased from one end to the other end along the axis of the clamping rod. The cross sectional area of each clamping groove is larger than the minimum cross sectional area of the corresponding clamping rod and further smaller than the maximum cross sectional area of the clamping rod. The side walls of the clamping rods can abut against the nut, the pressure borne by the gap between the nut and the bolt to be matched with a thread on the axis is increased, and therefore thecondition that fluctuation of fluid can drive pipelines to vibrate and the nut can rotate relative to the bolt to be loosened is prevented, and the using stability of a clamp is improved.
Description
technical field [0001] The invention relates to the petroleum field, in particular to a fixing device for crude oil excavation. Background technique [0002] The clamp is a connecting device for connecting grooved pipe fittings, valves and pipeline fittings. It is used to tighten the coupling between the quick joints. Generally, the two joints have gaskets, rubber, silicone and PTFE. It has good performance, high sealing degree and easy installation. [0003] Clamps are mainly divided into steel wire clamps and cast iron clamps. Among them, the steel wire clamp has the characteristics of beautiful appearance, convenient use, strong clamping force and good sealing performance. It is mainly used for connection, fastening and sealing of ordinary rubber hoses, nylon plastic hoses, cloth hoses, hoses and other interfaces of vehicles, ships, diesel engines, gasoline engines, machine tools, firefighting, and other mechanical equipment and chemical equipment; cast iron Clamps are...
Claims
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IPC IPC(8): F16L21/06F16B39/02F16B39/12F16F15/08
CPCF16L21/065F16B39/02F16B39/12F16F15/08
Inventor 贺昶明
Owner CHENGDU DAMO PETROLEUM TECH CO LTD