Jacking and clamping device for pressing test of valve

Abstract

The utility model provides a jacking and clamping device for a valve pressing test. The jacking and clamping device for the valve pressing test comprises a mounting frame, a mounting disc, an extrusion disc, a pushing piece, a guide rail and a supporting block. According to the jacking and clamping device for the valve pressing test, provided by the utility model, the mounting rack is arranged, the mounting disc is fixedly mounted on the mounting rack, and the extrusion disc is mounted on one side of the mounting disc. The extrusion disc is fixedly installed on the mounting frame, a pushing piece is further installed on the mounting frame, the driving end of the pushing piece is connected to the extrusion disc and used for driving the extrusion disc to move in the direction close to or away from the mounting disc, a guide rail is further installed on the mounting frame, and a supporting block slidably arranged on the guide rail is fixedly installed on the extrusion disc; a certain supporting effect can be achieved on the extrusion disc, the stability of the extrusion disc in the height direction is improved, and meanwhile the stress of the driving end of the pushing piece is reduced. And the data stability and the service life of the pushing piece in the test process are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve tightness detection, and particularly relates to a valve pressure test tightening clamping device. Background Art

[0002] Before the valve is put into use, it is necessary to test the tightness of the valve. The valve can be installed and used only after the test is completed to avoid unnecessary operations of repeated disassembly and maintenance in the future. At present, the tightness of the valve is usually tested by using two tightening discs to seal at both ends of the valve. The tightness of the valve is judged by applying pressurized liquid inside the valve and observing the changes in the internal pressure of the valve. During the test, a hydraulic cylinder is usually used to drive the tightening disc on one side to move and tighten the valve between the two tightening discs. However, during the experiment, the driving end of the hydraulic cylinder is subjected to a large downward force due to the influence of the valve's own gravity. On the one hand, it is easy to cause the tightening disc to tilt and affect the sealing effect of the valve. At the same time, long-term use is likely to affect the service life of the hydraulic cylinder. Utility Model Content

[0003] The embodiment of the utility model provides a valve pressure test clamping device, which aims to solve the problem in the prior art that the valve tightness test clamping device is easily affected by the valve's own gravity during use, which can easily affect the sealing effect of the valve and the service life of the hydraulic cylinder.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a valve pressure test clamping device, comprising:

[0005] Mounting rack;

[0006] A mounting plate, mounted on the mounting frame, wherein the end surface of the mounting plate is arranged in a vertical direction;

[0007] A squeeze plate is arranged parallel to the mounting plate with a distance therebetween, and the squeeze plate is positioned on the mounting frame with the freedom to move in a direction close to or away from the mounting plate;

[0008] A pushing member is mounted on the mounting frame, wherein a driving end of the pushing member is connected to the extrusion plate and is used to drive the extrusion plate to move on the mounting frame;

[0009] A guide rail is fixedly mounted on the mounting frame and is located below the extrusion plate, wherein the length direction of the guide rail is arranged along the moving direction of the extrusion plate;

[0010] The support block is fixedly mounted on the extrusion plate and slidably arranged on the guide rail.

[0011] In a possible implementation, the bottom of the mounting frame includes two spaced-apart cross beams, a support beam is fixedly mounted between the two cross beams, and the guide rail is fixedly mounted on the support beam.

[0012] In a possible implementation, a water receiving tray for accommodating liquid is further mounted on the mounting frame, and a notch is provided on the water receiving tray for avoiding movement of the support block, and a water baffle is provided on the side of the notch which is bent upward.

[0013] In a possible implementation, a push plate arranged in a horizontal direction is fixedly mounted on the support block, and the push plate is slidably arranged on the side of the top of the water retaining plate.

[0014] In a possible implementation, guide plates are provided on both side edges of the push plate that are bent upward along the length direction of the guide rail.

[0015] In a possible implementation, an extension tube is detachably mounted on the end surface of the mounting plate, and an auxiliary plate is fixedly mounted on the end of the extension tube.

[0016] In a possible implementation, a flange is fixedly mounted on the end of the extension tube away from the auxiliary plate, and a threaded hole corresponding to the flange is provided on the end surface of the mounting plate.

[0017] In a possible implementation, a fixing plate for fixing to the mounting bracket is also fixedly mounted on the mounting plate, the fixing plate is provided with threaded holes corresponding to the flange plate, and a mounting flange for fixing the fixing plate is fixedly mounted on the mounting bracket.

[0018] Compared with the prior art, the solution shown in the embodiment of the present application is characterized by providing a mounting frame, on which a mounting disc is fixedly mounted. The mounting disc is a disc-shaped structure, and the axis of the mounting disc is arranged in the horizontal direction. An extrusion disc is installed on one side of the mounting disc, and the extrusion disc is arranged relative to the mounting disc along the axis of the mounting disc. In addition, a pusher is installed on the mounting frame, and the driving end of the pusher is connected to the extrusion disc to drive the extrusion disc to move toward or away from the mounting disc, so as to achieve the clamping and disassembly of the valve. At the same time, the present application also installs a guide rail on the mounting frame, and the guide rail is located below the extrusion disc. A support block is fixedly mounted on the extrusion disc and is slidably mounted on the guide rail. The arrangement of the support block and the guide rail can provide a certain support for the extrusion disc, thereby improving the stability of the extrusion disc in the height direction and reducing the force on the driving end of the pusher. This ensures the stability of the data during the test and the service life of the pusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A schematic diagram of the structure of a valve pressure test clamping device provided by an embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of the installation structure of the support block and the guide rail provided in an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the auxiliary disk provided in an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Mounting frame; 11. Crossbeam; 12. Support beam; 13. Mounting flange; 2. Mounting plate; 21. Fixed plate; 3. Extrusion plate; 31. Pusher; 4. Guide rail; 5. Support block; 6. Water collecting tray; 61. Water baffle; 7. Push plate; 71. Guide plate; 8. Extension pipe; 81. Auxiliary plate; 82. Flange. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] Please also refer to Figures 1 to 3 Now, the valve pressure test clamping device provided by the utility model is described. The valve pressure test clamping device includes a mounting frame 1, a mounting plate 2, an extrusion plate 3, a pusher 31, a guide rail 4 and a support block 5. The mounting plate 2 is mounted on the mounting frame 1, and the end face of the mounting plate 2 is arranged in the vertical direction; the extrusion plate 3 is arranged in parallel with the mounting plate 2, and the position of the extrusion plate 3 on the mounting frame 1 has the freedom to move in the direction close to or away from the mounting plate 2; the pusher 31 is mounted on the mounting frame 1, and the driving end of the pusher 31 is connected to the extrusion plate 3, which is used to drive the extrusion plate 3 to move on the mounting frame 1; the guide rail 4 is fixedly mounted on the mounting frame 1 and is located below the extrusion plate 3, and the length direction of the guide rail 4 is arranged along the moving direction of the extrusion plate 3; the support block 5 is fixedly mounted on the extrusion plate 3 and is slidably arranged on the guide rail 4.

[0026] Compared to the prior art, the valve pressure test clamping device provided in this embodiment comprises a mounting frame 1, on which a mounting plate 2 is fixedly mounted. The mounting plate 2 is a circular disc-shaped structure, and the axis of the mounting plate 2 is arranged horizontally. A squeeze plate 3 is mounted on one side of the mounting plate 2, and the squeeze plate 3 is arranged opposite the mounting plate 2 along the axis of the mounting plate 2. Furthermore, a pusher 31 is mounted on the mounting frame 1. The driving end of the pusher 31 is connected to the squeeze plate 3 and is used to drive the squeeze plate 3 toward or away from the mounting plate 2 to achieve valve clamping and removal. Furthermore, the present application also includes a guide rail 4 mounted on the mounting frame 1. The guide rail 4 is located below the squeeze plate 3. A support block 5 is fixedly mounted on the squeeze plate 3 and slides on the guide rail 4. The arrangement of the support block 5 and the guide rail 4 provides a certain degree of support for the squeeze plate 3, improving the height stability of the squeeze plate 3 and reducing the force applied to the driving end of the pusher 31. This ensures the stability of the data during the test and the service life of the pusher 31.

[0027] Specifically, in this embodiment, a water injection hole for injecting water into the valve and an exhaust hole for discharging gas from the valve are provided on the mounting plate 2 .

[0028] In some embodiments, the mounting frame 1 may be configured as follows: Figure 1 、 Figure 2 See also Figure 1 、 Figure 2 The bottom of the mounting frame 1 includes two cross beams 11 arranged at intervals, a support beam 12 is fixedly installed between the two cross beams 11, and the guide rail 4 is fixedly installed on the support beam 12. Two cross beams 11 are fixedly installed at the bottom of the mounting frame 1, and the two cross beams 11 are arranged in parallel and at intervals along the moving direction of the extrusion disk 3. A support beam 12 is fixedly installed between the two cross beams 11. The two ends of the support beam 12 are respectively overlapped on the two cross beams 11 and fixedly installed on the cross beams 11. The guide rail 4 is fixedly installed on the support beam 12 by bolts, which can ensure the stability of the position of the guide rail 4 and prevent the guide rail 4 from bending and affecting the sliding stability of the support block 5.

[0029] In some embodiments, the mounting frame 1 may be configured as follows: Figure 1 、 Figure 2 See also Figure 1 、 Figure 2, a water receiving tray 6 for accommodating liquid is also installed on the mounting frame 1. A notch is provided on the water receiving tray 6 to allow the support block 5 to move. The side of the notch is bent upward to provide a water baffle 61. The water receiving tray 6 is fixedly installed on the mounting frame 1, and the extrusion tray 3 and the mounting tray 2 are both located above the water receiving tray 6. The water receiving tray 6 is used to collect liquid used during the test. In the present application, a notch is provided on one side of the water receiving tray 6 to allow the support block 5 to move, so that the extrusion tray 3 can move freely above the water receiving tray 6. And a water baffle 61 is bent upward at the side of the notch, and multiple water baffles 61 on multiple sides are sealed and connected by welding. Thereby, the loss of liquid inside the water receiving tray 6 can be avoided.

[0030] In some embodiments, the support block 5 may be formed as follows: Figure 2 The structure shown. Figure 2 , a push plate 7 arranged in the horizontal direction is also fixedly mounted on the support block 5, and the push plate 7 is slidably mounted on the side edge of the top of the water baffle 61. A push plate 7 is fixedly mounted on the support block 5, and the push plate 7 is located at the top of the water baffle 61, and is slidably mounted on the side edge of the top of the water baffle 61. The ends of the water baffle 61 perpendicular to the sliding direction of the support block 5 extend to the inside of the water receiving tray 6, and the push plate 7 is located directly below the squeeze plate 3. When the liquid slides off the squeeze plate 3, it can fall onto the push plate 7 and slide along the push plate 7 to the inside of the water receiving tray 6. Avoid falling onto the ground or the guide rail 4.

[0031] In some embodiments, the push plate 7 can be used as follows Figure 2 The structure shown. Figure 2 The push plate 7 is bent upward along both sides of the guide rail 4 in the length direction to form guide plates 71. The push plate 7 is bent upward on both sides to form guide plates 71. The guide plates 71 are provided to prevent liquid from falling into the notch and to clean impurities that fall on the water baffle 61, thereby ensuring the stability of the squeeze plate 3 during movement.

[0032] In some embodiments, the mounting plate 2 may be configured as follows: Figure 1 、 Figure 3 See also Figure 1 、 Figure 3 An extension tube 8 is detachably mounted on the end surface of the mounting plate 2, with an auxiliary plate 81 fixedly mounted at its end. An extension tube 8 is detachably mounted on the end surface of the mounting plate 2, with an auxiliary plate 81 fixedly mounted at its other end. When the extension tube 8 is mounted on the mounting plate 2, the auxiliary plate 81 and the squeeze plate 3 squeeze and secure the valve. When performing pressure tests on shorter valves, the auxiliary plate 81 can be added to the mounting plate 2 to reduce the travel of the squeeze plate 3, thereby improving the stability of the pusher 31.

[0033] Specifically, in this embodiment, when the extension tube 8 is installed on the mounting plate 2 , the extension tube 8 is coaxially arranged with the mounting plate 2 , and the extension tube 8 is coaxially arranged with the auxiliary plate 81 .

[0034] In some embodiments, the extension tube 8 may be Figure 3 The structure shown. Figure 3 A flange 82 is fixedly mounted on the end of the extension tube 8 away from the auxiliary disc 81. The end surface of the mounting disc 2 is provided with threaded holes corresponding to the flange 82. A flange 82 is fixedly mounted on the end of the extension tube 8, and is provided with multiple bolt holes. The mounting disc 2 is also provided with multiple bolt holes, allowing the flange 82 to be fixed to the mounting disc 2 via bolts. The simple structure facilitates the removal and installation of the auxiliary disc 81. The provision of the auxiliary disc 81 enables pressure testing of valves of different sizes.

[0035] In some embodiments, the squeeze disc 3 may be formed as follows: Figure 3 The structure shown. Figure 3 The mounting plate 2 is also fixedly mounted with a fixing plate 21 for fixing to the mounting frame 1. The fixing plate 21 is provided with threaded holes corresponding to the flange 82. The mounting frame 1 is fixedly mounted with a mounting flange 13 for fixing the fixing plate 21. The mounting plate 2 is detachably mounted on the mounting frame 1 through the connection between the fixing plate 21 and the mounting flange 13. When pressure testing valves of different specifications, the fixing plate 21 can be removed and replaced with a mounting plate 2 of corresponding specifications and dimensions. At the same time, the flange 82 can also be directly fixed to the mounting flange 13 on the mounting frame 1, thereby directly using the auxiliary plate 81 for pressure testing. This expands the scope of use of the clamping device and makes it suitable for testing valves of different specifications.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A valve pressure test clamping device, characterized in that: include: Mounting frame (1); A mounting plate (2) is mounted on the mounting frame (1), and an end surface of the mounting plate (2) is arranged in a vertical direction; An extrusion plate (3) is arranged in parallel with the mounting plate (2) at an interval, and the position of the extrusion plate (3) on the mounting frame (1) has the freedom to move in a direction close to or away from the mounting plate (2); A pushing member (31) is mounted on the mounting frame (1), wherein a driving end of the pushing member (31) is connected to the extrusion plate (3) and is used to drive the extrusion plate (3) to move on the mounting frame (1); A guide rail (4) is fixedly mounted on the mounting frame (1) and is located below the extrusion plate (3), wherein the length direction of the guide rail (4) is arranged along the moving direction of the extrusion plate (3); The support block (5) is fixedly mounted on the extrusion plate (3) and slidably arranged on the guide rail (4).

2. The valve pressure test clamping device according to claim 1, characterized in that: The bottom of the mounting frame (1) comprises two spaced-apart cross beams (11), a support beam (12) is fixedly mounted between the two cross beams (11), and the guide rail (4) is fixedly mounted on the support beam (12).

3. The valve pressure test clamping device according to claim 1, characterized in that: The mounting frame (1) is also provided with a water receiving tray (6) for accommodating liquids. The water receiving tray (6) is provided with a notch for avoiding the movement of the support block (5). The side of the notch is bent upwards and provided with a water baffle (61).

4. The valve pressure test clamping device according to claim 3, characterized in that: A push plate (7) arranged in the horizontal direction is also fixedly mounted on the support block (5), and the push plate (7) is slidably arranged on the side of the top of the water retaining plate (61).

5. The valve pressure test clamping device according to claim 4, characterized in that: The push plate (7) is provided with guide plates (71) that are bent upwards along both sides of the guide rail (4) in the length direction.

6. The valve pressure test clamping device according to claim 1, characterized in that: An extension tube (8) is detachably mounted on the end surface of the mounting plate (2), and an auxiliary plate (81) is fixedly mounted on the end of the extension tube (8).

7. The valve pressure test clamping device according to claim 6, characterized in that: A flange (82) is fixedly mounted on the end of the extension tube (8) away from the auxiliary plate (81), and a threaded hole corresponding to the flange (82) is provided on the end surface of the mounting plate (2).

8. The valve pressure test clamping device according to claim 7, characterized in that: A fixing plate (21) for fixing to the mounting frame (1) is also fixedly mounted on the mounting plate (2); a threaded hole corresponding to the flange (82) is provided on the fixing plate (21); and a mounting flange (13) for fixing the fixing plate (21) is fixedly mounted on the mounting frame (1).

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