Safety valve detection clamp

Abstract

The utility model discloses a safety valve detection clamp, which comprises a mounting plate, a fixed arm and a rotating arm are horizontally arranged on the mounting plate, the fixed arm is fixedly connected with the mounting plate, one end of the rotating arm is rotatably connected with the end part of the fixed arm, and a positioning mechanism for positioning on the mounting plate is arranged on the rotating arm. Sliding seats and driving mechanisms for driving the sliding seats to translate are arranged on the fixed arm and the rotating arm, and clamping mechanisms are arranged on the sliding seats; the clamping mechanism comprises a supporting column vertically fixed to the sliding base, a top arm horizontally fixed to the top end of the supporting column and a pair of clamping arms vertically arranged on the top of the top arm. The device is flexible in overall structure, can clamp and fix straight-through type and right-angle type safety valves of different models and sizes, and provides convenience for detection of the safety valves of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a safety valve detection clamp. Background Art

[0002] Safety valves are special valves whose opening and closing parts are in a normally closed state under the action of external forces. When the medium pressure in the equipment or pipeline exceeds the specified value, the medium is discharged to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. In the process of producing safety valves, in order to facilitate the performance testing of safety valves, mechanical clamps are needed to clamp and fix the safety valves during testing.

[0003] In the prior art, the utility model with application number 202223051169.9 provides a mechanical fixture for safety valve detection, including a detection table, support legs arranged at the bottom of the detection table, a placement table arranged at the top of the detection table, vertical plates arranged at the top of the base and located on the left and right sides of the placement table, a linear slide vertically arranged on the inner walls of the two vertical plates, telescopic push rods respectively connected to the slides of the two linear slides, adjusting motors respectively connected to the output shafts of the two telescopic push rods, and electric clamps respectively connected to the output shafts of the two adjusting motors and used to clamp and fix the safety valve.

[0004] It is not difficult to find that in the above-mentioned prior art, a pair of telescopic push rods are used to extend and retract to achieve the clamping and fixing of the safety valve, wherein the pair of telescopic push rods are located in the same length direction. Although it is convenient to operate and is convenient for clamping and fixing the safety valve, the safety valve has various types such as straight-through type and right-angle type. The telescopic push rods located in the same length direction are obviously difficult to adapt and clamp various types of safety valves such as straight-through type and right-angle type, and the applicability is low. For this reason, the present application proposes a safety valve detection fixture. Utility Model Content

[0005] The utility model aims to provide a safety valve detection fixture, which has a flexible overall structure and can clamp and fix straight-through and right-angle safety valves of different models and sizes, thereby providing convenience for the detection of safety valves of different models.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A safety valve detection fixture comprises a mounting plate, on which a fixed arm and a rotating arm are horizontally arranged, the fixed arm is fixedly connected to the mounting plate, one end of the rotating arm is rotatably connected to the end of the fixed arm, the rotating arm is provided with a positioning mechanism for positioning on the mounting plate, the fixed arm and the rotating arm are both provided with a slide and a driving mechanism for driving the slide to translate, and the slide is provided with a clamping mechanism.

[0008] Preferably, the clamping mechanism includes a support column vertically fixed on the slide seat, a top arm horizontally fixed to the top of the support column, and a pair of clamping arms vertically arranged on the top of the top arm.

[0009] Preferably, a second slide groove is opened on the upper surface of the top arm, and a second drive knob is rotatably installed in the second slide groove. The bottom ends of a pair of clamp arms are slidably engaged with the second slide groove and are threadedly engaged with the bidirectional screw rod. The end of the top arm is provided with a second drive knob coaxially connected to the bidirectional screw rod.

[0010] Preferably, a clamping groove is provided on one side of the pair of clamping arms facing each other.

[0011] Preferably, the driving mechanism includes a first sliding groove opened on the fixed arm and the rotating arm and a one-way screw rotatably installed in the first sliding groove, and the ends of the fixed arm and the rotating arm are provided with a first driving knob coaxially connected to the one-way screw, the sliding seat is slidably engaged with the first sliding groove, and the one-way screw thread passes through the sliding seat.

[0012] Preferably, an arc-shaped guide groove is provided on the mounting plate, and the guide groove is arranged cocentrically with the rotating axis of the rotating arm. The positioning mechanism includes a fixed block fixed on the side wall of the rotating arm, a clamping bolt threaded through the fixed block, and a clamping block rotatably installed at the bottom end of the clamping bolt. A slider slidably engaged with the guide groove is provided at the bottom of the clamping block, and a baffle is provided at the bottom of the slider, and the baffle is slidably engaged with the lower surface of the mounting plate.

[0013] Preferably, a rubber pad is provided on the lower surface of the stop block, and a circle of rubber strips is inlaid on the upper surface of the mounting plate surrounding the guide groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model positions the rotating arm through the rotating installation of the rotating arm and the positioning mechanism. When the rotating arm is rotated to be perpendicular to the fixed arm, the two groups of clamping mechanisms on the fixed arm and the rotating arm can clamp and fix the two flanges of the right-angle safety valve respectively, thereby realizing the positioning and clamping of the right-angle safety valve. By rotating the rotating arm and the fixed arm to be in the same length direction, the rotating arm is positioned on the mounting plate, and the two groups of clamping mechanisms can clamp and fix the two flanges of the straight-through safety valve, thereby realizing the clamping and positioning of the straight-through safety valve. In addition, the driving mechanism is used to drive the slide seat to slide and translate along the fixed arm or the rotating arm, so that the distance between the two groups of clamping mechanisms can be adjusted, and safety valves of different models and sizes can be adapted. The overall structure is flexible, and can clamp and fix straight-through and right-angle safety valves of different models and sizes, providing convenience for the detection of safety valves of different models.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the mounting plate of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the clamping mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the positioning mechanism of the utility model.

[0021] In the figure: 1. mounting plate; 2. fixed arm; 3. rotating arm; 4. guide groove; 5. positioning mechanism; 6. clamping mechanism; 7. slide seat; 8. driving mechanism; 9. first slide groove; 10. one-way screw rod; 11. first driving knob; 12. rubber strip; 13. support column; 14. top arm; 15. clamping arm; 16. clamping groove; 17. second slide groove; 18. two-way screw rod; 19. second driving knob; 20. fixing block; 21. tightening bolt; 22. block; 23. rubber pad; 24. slider; 25. baffle. DETAILED DESCRIPTION

[0022] In the description of the present utility model, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. The following is a detailed description of various embodiments of the present utility model in conjunction with the drawings.

[0023] Example

[0024] See also Figures 1 to 4The utility model preferably provides a technical solution: a safety valve detection fixture, including a mounting plate 1, a fixed arm 2 and a rotating arm 3 are horizontally arranged on the mounting plate 1, the fixed arm 2 is fixedly connected to the mounting plate 1, one end of the rotating arm 3 is rotatably connected to the end of the fixed arm 2, and a positioning mechanism 5 for positioning on the mounting plate 1 is arranged on the rotating arm 3, a slide 7 and a driving mechanism 8 for driving the slide 7 to translate are arranged on the fixed arm 2 and the rotating arm 3, and a clamping mechanism 6 is arranged on the slide 7. Through this structural method, when the rotating arm 3 is rotated perpendicular to the fixed arm 2, the two sets of clamping mechanisms 6 on the fixed arm 2 and the rotating arm 3 can be right-angled. The two flanges of the safety valve are clamped and fixed respectively to realize the positioning and clamping of the right-angle safety valve. The rotating arm 3 and the fixed arm 2 are in the same length direction. The two sets of clamping mechanisms 6 can clamp and fix the two flanges of the straight-through safety valve, thereby realizing the clamping and positioning of the straight-through safety valve. In addition, the driving mechanism 8 is used to drive the slide 7 to slide and translate along the fixed arm 2 or the rotating arm 3, so as to adjust the distance between the two sets of clamping mechanisms 6, and can adapt to safety valves of different models and sizes. The overall structure is flexible, and can clamp and fix straight-through and right-angle safety valves of different models and sizes, providing convenience for the detection of safety valves of different models.

[0025] As a preferred implementation scheme of this embodiment, the clamping mechanism 6 includes a support column 13 vertically fixed on the slide seat 7, a top arm 14 horizontally fixed at the top of the support column 13, and a pair of clamping arms 15 vertically arranged on the top of the top arm 14. A second slide groove 17 is provided on the upper surface of the top arm 14, and a second driving knob 19 is rotatably installed in the second slide groove 17. The bottom ends of the pair of clamping arms 15 are slidably engaged with the second slide groove 17 and are threadedly engaged with the bidirectional screw rod 18. The end of the top arm 14 is provided with a second driving knob 19 coaxially connected to the bidirectional screw rod 18. The second driving knob 19 is turned to rotate, which drives the second slide groove 17 to rotate, and drives the pair of clamping arms 15 on the two top arms 14 to approach each other, so that the flange of the safety valve can be clamped and fixed, which is used for positioning and clamping the safety valve, wherein a clamping groove 16 is provided on the facing side of the pair of clamping arms 15, into which the flange of the safety valve can be embedded.

[0026] As a preferred implementation scheme of this embodiment, the driving mechanism 8 includes a first sliding groove 9 opened on the fixed arm 2 and the rotating arm 3 and a one-way screw 10 rotatably installed in the first sliding groove 9. The ends of the fixed arm 2 and the rotating arm 3 are provided with a first driving knob 11 coaxially connected with the one-way screw 10. The slide 7 is slidably engaged with the first sliding groove 9. The one-way screw 10 is threaded through the slide 7. Turning the first driving knob 11 drives the one-way screw 10 to rotate, driving the slide 7 to slide and translate along the fixed arm 2 or the rotating arm 3, so as to adjust the distance between the two sets of clamping arms 15 to adapt to safety valves of different models and sizes.

[0027] As a preferred implementation of this embodiment, an arc-shaped guide groove 4 is opened on the mounting plate 1, and the guide groove 4 is arranged concentrically with the rotation axis of the rotating arm 3. The positioning mechanism 5 includes a fixed block 20 fixed on the side wall of the rotating arm 3, a tightening bolt 21 threadedly penetrated on the fixed block 20, and a stop block 22 rotatably mounted at the bottom end of the tightening bolt 21. A slider 24 slidably engaged with the guide groove 4 is arranged at the bottom of the stop block 22, and a baffle 25 is arranged at the bottom end of the slider 24. The baffle 25 is slidably engaged with the lower surface of the mounting plate 1, and the slider 24 is slidably engaged with the guide groove 4. The movable engagement can guide the rotation of the rotating arm 3. The baffle 25 is used to limit the bottom of the slider 24 to prevent the slider 24 from slipping out of the guide groove 4. The tightening bolt 21 is turned to push the block 22 down and press it tightly against the mounting plate 1, so that the rotating arm 3 can be positioned on the mounting plate 1. In this embodiment, a rubber pad 23 is provided on the lower surface of the block 22, and a circle of rubber strips 12 are inlaid on the upper surface of the mounting plate 1 around the guide groove 4. When the block 22 is pressed against the mounting plate 1, the rubber strip 12 fits with the rubber pad 23 to increase friction and improve the positioning effect of the rotating arm 3.

[0028] When in use, when clamping the right-angle safety valve, rotate the rotating arm 3 vertically with the fixed arm 2, screw the tightening bolt 21 to push the block 22 downward to tighten with the mounting plate 1, position the rotating arm 3 on the mounting plate 1, place the two flanges of the right-angle safety valve above the pair of top arms 14, then screw the second drive knob 19 to rotate, drive the second slide 17 to rotate, drive the pair of clamping arms 15 on the two top arms 14 to approach each other, clamp and fix the two flanges of the right-angle safety valve respectively, and achieve the positioning and clamping of the right-angle safety valve. When clamping the straight-through safety valve, rotate the rotating arm 3 and the fixed arm 2 in the same length direction, then screw the tightening bolt 21 to position the rotating arm 3 on the mounting plate 1, at this time, the two groups of clamping arms 15 on the top of the pair of top arms 14 clamp and fix the two flanges of the straight-through safety valve respectively, thereby achieving the clamping and positioning of the straight-through safety valve. Furthermore, by turning the first driving knob 11 to drive the one-way screw 10 to rotate, the slide seat 7 is driven to slide and translate along the fixed arm 2 or the rotating arm 3, so that the distance between the two sets of clamping arms 15 can be adjusted, and safety valves of different models and sizes can be adapted.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. There are many ways of detachable installation, for example, it can be through the method of plug-in and buckle matching, and for example, through the method of bolt connection, etc.

[0030] The above clearly and completely describes the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0031] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.

Claims

1. A safety valve detection fixture, comprising a mounting plate (1), characterized in that: A fixed arm (2) and a rotating arm (3) are horizontally arranged on the mounting plate (1); the fixed arm (2) is fixedly connected to the mounting plate (1); one end of the rotating arm (3) is rotatably connected to the end of the fixed arm (2); a positioning mechanism (5) for positioning on the mounting plate (1) is arranged on the rotating arm (3); a slide seat (7) and a driving mechanism (8) for driving the slide seat (7) to translate are arranged on the fixed arm (2) and the rotating arm (3); and a clamping mechanism (6) is arranged on the slide seat (7).

2. The safety valve detection fixture according to claim 1, characterized in that: The clamping mechanism (6) comprises a support column (13) vertically fixed on the slide seat (7), a top arm (14) horizontally fixed on the top of the support column (13), and a pair of clamping arms (15) vertically arranged on the top of the top arm (14).

3. The safety valve detection fixture according to claim 2, characterized in that: A second slide groove (17) is provided on the upper surface of the top arm (14), and a second driving knob (19) is rotatably installed in the second slide groove (17). The bottom ends of a pair of clamp arms (15) are slidably engaged with the second slide groove (17) and threadedly sleeved with the bidirectional screw rod (18). The end of the top arm (14) is provided with a second driving knob (19) coaxially connected to the bidirectional screw rod (18).

4. The safety valve detection fixture according to claim 2, characterized in that: A clamping groove (16) is formed on one side of the pair of clamping arms (15) facing each other.

5. The safety valve detection fixture according to claim 1, characterized in that: The driving mechanism (8) comprises a first slide groove (9) provided on the fixed arm (2) and the rotating arm (3) and a one-way screw rod (10) rotatably mounted in the first slide groove (9); the ends of the fixed arm (2) and the rotating arm (3) are provided with a first driving knob (11) coaxially connected to the one-way screw rod (10); the sliding seat (7) is slidably engaged with the first slide groove (9); and the one-way screw rod (10) is threadedly penetrated through the sliding seat (7).

6. The safety valve detection fixture according to claim 1, characterized in that: The mounting plate (1) is provided with an arc-shaped guide groove (4), and the guide groove (4) is arranged cocentrically with the rotation axis of the rotating arm (3). The positioning mechanism (5) comprises a fixing block (20) fixed on the side wall of the rotating arm (3), a clamping bolt (21) threadedly inserted into the fixing block (20), and a clamping block (22) rotatably mounted on the bottom end of the clamping bolt (21). A slider (24) slidably engaged with the guide groove (4) is arranged at the bottom of the clamping block (22), and a baffle (25) is arranged at the bottom end of the slider (24), and the baffle (25) is slidably engaged with the lower surface of the mounting plate (1).

7. The safety valve detection fixture according to claim 6, characterized in that: A rubber pad (23) is provided on the lower surface of the stop block (22), and a circle of rubber strips (12) is inlaid on the upper surface of the mounting plate (1) surrounding the guide groove (4).

Images