Clamping mechanism of oil well pipe pressure testing machine

Abstract

The utility model belongs to the technical field of clamping mechanisms, and particularly relates to an oil well pipe pressure testing machine clamping mechanism which comprises a bottom plate, the lower end of the bottom plate is fixedly connected with a supporting plate, the supporting plate is provided with an adjusting mechanism, the adjusting mechanism is provided with a support, the support is connected with the bottom plate in a sliding mode, and the bottom plate is provided with a clamping mechanism. A supporting cylinder is installed in the support through a bearing, and a clamping mechanism is arranged on the supporting cylinder. According to the oil well pipe fixing device, the pressing plate is extruded by rotating the pressing cover and the supporting cylinder to do threaded motion, so that the square rod drives the pressing wheel to move, oil well pipes with different diameters can be clamped and fixed when the oil well pipe fixing device is used, and the oil well pipes are convenient to fix.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping mechanisms, and in particular relates to a clamping mechanism for an oil well pipe pressure testing machine. Background Art

[0002] The utility model patent with the patent authorization announcement number CN221100286U discloses a clamping mechanism of an oil well pipe pressure tester, including a mounting frame, a hinge shaft, a left clamping plate, a right clamping plate, a tension spring, a wedge and a driving mechanism. The utility model has a reasonable and compact structure, the oil well pipe is placed between the left clamping groove and the right clamping groove, and then the driving mechanism is activated, the wedge moves upward after the driving mechanism is activated, and the wedge moves upward so that the lower part of the left clamping plate and the lower part of the right clamping plate are separated from each other, that is, the upper part of the left clamping plate and the upper part of the right clamping plate are close to each other and then clamp the oil well pipe, when the oil well pipe needs to be loosened, the wedge moves downward through the driving mechanism, the lower part of the left clamping plate and the lower part of the right clamping plate are close to each other under the action of the tension spring, that is, the upper part of the left clamping plate and the upper part of the right clamping plate are away from each other and then the oil well pipe is loosened, the utility model has a simple structure, is easy to install and operate, and the device can also be used in working occasions where there is a clamping demand for the pipe column.

[0003] However, when the device is in use, it is not convenient to adjust the device to support and fix oil well pipes of different lengths. At the same time, the device is not convenient to adjust and it is not convenient to clamp oil well pipes of different diameters. Summary of the invention

[0004] The utility model aims to provide a clamping mechanism for an oil well pipe pressure testing machine, which solves the problem that the clamping mechanism of the existing oil well pipe pressure testing machine is not convenient for adjusting to support and fix oil well pipes of different lengths, and the device is not convenient for adjusting and clamping oil well pipes of different diameters.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a clamping mechanism of an oil well pipe pressure testing machine, comprising a base plate, a support plate is fixedly connected to the lower end of the base plate, an adjusting mechanism is arranged on the support plate, a support is arranged on the adjusting mechanism, the support and the base plate are slidably connected, a support cylinder is installed inside the support via a bearing, a clamping mechanism is arranged on the support cylinder, the adjusting mechanism comprises a bidirectional screw, a bidirectional screw is installed inside the support plate via a bearing, a sliding rod is connected to the outer side of the bidirectional screw via a thread, the clamping mechanism comprises a square rod, the square rod is slidably connected to the inside of the support cylinder, and a connecting seat is fixedly connected to the surface of the square rod.

[0006] The principle of the utility model is that when in use, according to the oil well pipe length adjusting device, the bidirectional screw rod is manually rotated, the bidirectional screw rod rotates and the sliding rod performs a threaded motion, thereby causing the sliding rod to move, the sliding rod drives the support to move, the support drives the supporting cylinder to move, thereby causing the clamping mechanism to move, so that when the device is in use, oil well pipes of different lengths can be supported and fixed, and then the oil well pipe passes through the supporting cylinder, the pressure cover is manually rotated, the pressure cover rotates and the supporting cylinder performs a threaded motion, thereby causing the pressure cover to slide on the outside of the supporting cylinder, thereby causing the pressure cover to squeeze the pressing plate, the movement of the pressing plate drives the square rod to move, so that the square rod slides into the supporting cylinder, thereby causing the square rod to drive the connecting seat to move, the connecting seat drives the pressing wheel to move, the pressing wheel moves and contacts the oil well pipe, so that the oil well pipe is clamped and fixed, and the pressure cover and the supporting cylinder perform a threaded motion to squeeze the pressing plate, so that the square rod drives the pressing wheel to move, thereby causing the device to clamp and fix oil well pipes of different diameters when in use, so that the oil well pipe is convenient to fix.

[0007] The beneficial effect of the utility model is that by rotating the bidirectional screw and the slide rod to make a threaded motion, the support seat drives the support tube to move, and then the clamping mechanism moves, so that when the device is used, oil well pipes of different lengths can be supported and fixed.

[0008] The pressing plate is squeezed by rotating the pressure cover and the support tube to make a threaded motion, so that the square rod drives the pressing wheel to move, so that when the device is in use, oil well pipes with different diameters can be clamped and fixed, making it convenient to fix the oil well pipes.

[0009] Furthermore, the slide bar is fixedly connected to the support, and a turntable is fixedly connected to the middle of the outer side of the bidirectional screw. By rotating the bidirectional screw and the slide bar to make a threaded motion, the support drives the support tube to move, and then the clamping mechanism moves, so that when the device is used, oil well pipes of different lengths can be supported and fixed.

[0010] Furthermore, a slide groove is slidably connected inside the bottom plate, and the slide groove is slidably connected to the slide rod. The slide groove is provided to guide the movement of the slide rod.

[0011] Furthermore, a limiting plate is welded to the lower end of the bottom plate, and the limiting plate is slidably connected to the turntable. The turntable is limited by setting the limiting plate.

[0012] Furthermore, a pressure wheel is rotatably connected inside the connection seat, a pressure plate is welded on the square rod, and a spring is arranged on the outside of the square rod. The pressure plate is squeezed by rotating the pressure cover and the support tube to make a threaded movement, so that the square rod drives the pressure wheel to move, and then the device can clamp and fix oil well pipes of different diameters when in use, making it convenient to fix the oil well pipes.

[0013] Furthermore, one end of the spring is fixedly connected to the support tube, and the other end of the spring is fixedly connected to the pressing plate. By arranging the spring, the pressing plate is easy to reset.

[0014] Furthermore, the outer side of the support tube is connected with a gland through a thread, and the gland is in contact with the pressing plate. By setting the gland, the movement of the pressing plate is controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the overall structure of the clamping mechanism of the oil well pipe pressure testing machine according to an embodiment of the present invention;

[0016] Figure 2 The clamping mechanism of the oil well pipe pressure testing machine according to the embodiment of the present invention Figure 1 Bottom view of

[0017] Figure 3 The clamping mechanism of the oil well pipe pressure testing machine according to the embodiment of the present invention Figure 1 A three-dimensional diagram of the support;

[0018] Figure 4 The clamping mechanism of the oil well pipe pressure testing machine according to the embodiment of the present invention Figure 3 Cross-sectional view of the support tube in .

[0019] The figure marks in the drawings of the specification include: base plate 1, support plate 2, adjustment mechanism 3, support 4, support tube 5, clamping mechanism 6, bidirectional screw 31, slide rod 32, slide groove 33, turntable 34, limit plate 35, square rod 61, connecting seat 62, pressure wheel 63, pressure plate 64, spring 65, pressure cover 66. DETAILED DESCRIPTION

[0020] The following is further described in detail through specific implementation methods:

[0021] like Figure 1 , Figure 2 As shown, this embodiment provides a clamping mechanism for an oil well pipe pressure testing machine, including a base plate 1, a support plate 2 is fixedly connected to the lower end of the base plate 1, an adjustment mechanism 3 is provided on the support plate 2, a support seat 4 is provided on the adjustment mechanism 3, the support seat 4 and the base plate 1 are slidably connected, a support tube 5 is installed inside the support 4 through a bearing, and a clamping mechanism 6 is provided on the support tube 5.

[0022] like Figure 2As shown, the adjusting mechanism 3 includes a bidirectional screw 31, a bidirectional screw 31 is installed inside the support plate 2 through a bearing, a sliding rod 32 is connected to the outside of the bidirectional screw 31 through a thread, a sliding groove 33 is slidably connected to the inside of the bottom plate 1, the sliding groove 33 and the sliding rod 32 are slidably connected, and the sliding groove 33 is provided to guide the movement of the sliding rod 32, the sliding rod 32 and the support 4 are fixedly connected, a turntable 34 is fixedly connected to the middle part of the outer side of the bidirectional screw 31, a limiting plate 35 is welded to the lower end of the bottom plate 1, the limiting plate 35 and the turntable 34 are slidably connected, and the turntable 34 is limited by providing the limiting plate 35, and the bidirectional screw 31 and the sliding rod 32 are threadedly rotated, so that the support 4 drives the support tube 5 to move, and then the clamping mechanism 6 moves, so that when the device is used, oil well pipes of different lengths can be supported and fixed.

[0023] like Figure 1 , Figure 3 , Figure 4 As shown, the clamping mechanism 6 includes a square rod 61, the inside of the support tube 5 is slidably connected to the square rod 61, the surface of the square rod 61 is fixedly connected to a connecting seat 62, the inside of the connecting seat 62 is rotatably connected to a pressure wheel 63, and a pressure plate 64 is welded on the square rod 61. A spring 65 is arranged on the outside of the square rod 61, one end of the spring 65 is fixedly connected to the support tube 5, and the other end of the spring 65 is fixedly connected to the pressure plate 64. By arranging the spring 65, the pressure plate 64 is easy to reset, and the outside of the support tube 5 is connected to a pressure cover 66 by threading, and the pressure cover 66 is in contact with the pressure plate 64. By arranging the pressure cover 66, the movement of the pressure plate 64 is controlled, and the pressure cover 66 and the support tube 5 are rotated to make a threaded movement to squeeze the pressure plate 64, so that the square rod 61 drives the pressure wheel 63 to move, so that when the device is in use, it can clamp and fix oil well pipes of different diameters, making it convenient to fix the oil well pipes.

[0024] The specific implementation process of the utility model is as follows: when in use, according to the oil well pipe length adjustment device, the bidirectional screw rod 31 is manually rotated, the bidirectional screw rod 31 rotates and the slide rod 32 performs a threaded motion, thereby causing the slide rod 32 to move, the slide rod 32 drives the support 4 to move, the support 4 drives the support tube 5 to move, thereby causing the clamping mechanism 6 to move, so that when the device is used, oil well pipes of different lengths can be supported and fixed, and then the oil well pipes are passed through the support tube 5, the pressure cap 66 is manually rotated, the pressure cap 66 rotates and the support tube 5 performs a threaded motion, thereby causing the pressure cap 66 to be on the outside of the support tube 5 Sliding, the pressure cover 66 squeezes the pressure plate 64, and the movement of the pressure plate 64 drives the square rod 61 to move, so that the square rod 61 slides into the support tube 5, and the square rod 61 drives the connecting seat 62 to move, and the connecting seat 62 drives the pressure wheel 63 to move, and the pressure wheel 63 moves and contacts the oil well pipe, so that the oil well pipe is clamped and fixed, and the pressure cover 66 and the support tube 5 are rotated to make a threaded movement to squeeze the pressure plate 64, so that the square rod 61 drives the pressure wheel 63 to move, and when the device is in use, it can clamp and fix oil well pipes of different diameters, making it convenient to fix the oil well pipe.

[0025] By rotating the bidirectional screw 31 and the slide rod 32 to make a threaded motion, the support 4 drives the support tube 5 to move, and then the clamping mechanism 6 moves, so that when the device is used, oil well pipes of different lengths can be supported and fixed.

[0026] The pressing plate 64 is squeezed by rotating the pressing cover 66 and the supporting tube 5 to make a threaded motion, so that the square rod 61 drives the pressing wheel 63 to move, so that when the device is in use, the oil well pipes with different diameters can be clamped and fixed, making it convenient to fix the oil well pipes.

[0027] It should be noted in advance that, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A clamping mechanism for an oil well pipe pressure testing machine, comprising a bottom plate, characterized in that: The lower end of the base plate is fixedly connected to a support plate, an adjusting mechanism is provided on the support plate, a support is provided on the adjusting mechanism, the support and the base plate are slidably connected, a support tube is installed inside the support via a bearing, a clamping mechanism is provided on the support tube, the adjusting mechanism includes a bidirectional screw, a bidirectional screw is installed inside the support plate via a bearing, a sliding rod is connected to the outer side of the bidirectional screw via a thread, the clamping mechanism includes a square rod, the square rod is slidably connected to the inside of the support tube, and a connecting seat is fixedly connected to the surface of the square rod.

2. The clamping mechanism of the oil well pipe pressure testing machine according to claim 1, characterized in that: The slide rod and the support are fixedly connected, and a rotating disk is fixedly connected to the middle part of the outer side of the bidirectional screw rod.

3. The clamping mechanism of the oil well pipe pressure testing machine according to claim 1, characterized in that: The bottom plate is slidably connected with a slide groove inside, and the slide groove is slidably connected to the slide rod.

4. The clamping mechanism of the oil well pipe pressure testing machine according to claim 2, characterized in that: A limiting plate is welded at the lower end of the bottom plate, and the limiting plate is slidably connected to the rotating disk.

5. The clamping mechanism of the oil well pipe pressure testing machine according to claim 1, characterized in that: A pressure wheel is rotatably connected inside the connecting seat, a pressure plate is welded on the square rod, and a spring is arranged on the outer side of the square rod.

6. The clamping mechanism of the oil well pipe pressure testing machine according to claim 5, characterized in that: One end of the spring is fixedly connected to the support tube, and the other end of the spring is fixedly connected to the pressure plate.

7. The clamping mechanism of the oil well pipe pressure testing machine according to claim 5, characterized in that: The outer side of the support cylinder is connected with a pressure cover through threads, and the pressure cover is in contact with a pressure plate.

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