Clamping device

Abstract

The utility model belongs to the technical field of pressure reducing valve pressure detection, and discloses a clamping device. The clamping device comprises a support, a clamping piece, a gear assembly, a transmission piece and a locking assembly. The clamping piece is connected to the support in a sliding mode, and the support and the clamping piece are used for being in butt joint with the two valve port ends of the pressure reducing valve correspondingly so as to clamp the pressure reducing valve. The gear assembly is connected with the clamping piece, the transmission piece is arranged on the support, and the gear assembly moves relative to the transmission piece and can drive the clamping piece to move so as to clamp or loosen the pressure reducing valve. And the locking assembly is locked to fix the state when the pressure reducing valve is clamped by the support and the clamping piece. According to the clamping device, the pressure reducing valve can be subjected to a water pressure withstanding test or an air pressure withstanding test, and the test efficiency and the safety in the test process are relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection of pressure reducing valves, in particular to a clamping device. Background Art

[0002] A pressure reducing valve is a valve that reduces the inlet pressure to a desired outlet pressure through regulation and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. Pressure testing of a pressure reducing valve usually includes a water pressure resistance test and an air pressure resistance test.

[0003] Existing pressure testing equipment does not have an air pressure applying mechanism, and the air pressure applying mechanism cannot directly act on the pressure reducing valve to perform an air pressure resistance test on the pressure reducing valve, so it can only perform a water pressure resistance test. Moreover, since the pressure testing equipment directly acts on the pressure reducing valve during the water pressure resistance test, the pressure testing equipment improperly clamps the pressure reducing valve, which can easily cause damage to the groove of the pressure reducing valve, and the pressure reducing valve can easily collapse suddenly during the test, causing the pressure reducing valve to fall off the pressure testing equipment, affecting the test results, reducing the test efficiency, and reducing the safety of the test process. Therefore, it is urgent to provide a clamping device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping device for clamping a pressure reducing valve, so that the pressure reducing valve can undergo a water pressure resistance test or an air pressure resistance test, and the pressure reducing valve is not easily damaged or falls off the clamping device during the test, thereby improving the test efficiency and the safety of the test process.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A clamping device is provided for clamping a pressure reducing valve so that the pressure reducing valve can be subjected to a water pressure resistance test or a gas pressure resistance test. The clamping device comprises:

[0007] Support;

[0008] A clamping member is slidably connected to the support, and the support and the clamping member are respectively used to dock with two valve port ends of the pressure reducing valve to clamp the pressure reducing valve;

[0009] A gear assembly and a transmission member, wherein the gear assembly is connected to the clamping member, and the transmission member is disposed on the support. The gear assembly moves relative to the transmission member to drive the clamping member to move, thereby clamping or releasing the pressure reducing valve;

[0010] A locking assembly is configured to lock the support and the clamping member to fix the state in which the pressure reducing valve is clamped.

[0011] Preferably, a first docking piece is provided on the support, and a second docking piece is provided on the clamping piece. The first docking piece is used to dock with one valve port end of the pressure reducing valve, and the second docking piece is used to dock with the other valve port end of the pressure reducing valve. The first docking piece is provided with a first connecting hole, and the second docking piece is provided with a second connecting hole. The pressure detection medium can pass into the pressure reducing valve through the first connecting hole and the second connecting hole.

[0012] Preferably, the locking assembly comprises:

[0013] a first locking member, used to lock the first docking member to the support, the first locking member being provided with a third communicating hole, the third communicating hole being in communication with the first communicating hole;

[0014] The second locking member is used to lock the second docking member to the clamping member. The second locking member is provided with a fourth communicating hole, and the fourth communicating hole is communicated with the second communicating hole.

[0015] Preferably, the gear assembly includes a gear and a gear shaft, the gear shaft is transmission-connected to the clamping member, and the gear is sleeved on the gear shaft.

[0016] Preferably, the gear assembly further includes a clamping piece, one end of the gear shaft passes through the clamping piece, and the other end is connected to the gear, and a groove is provided at the end of the gear shaft passing through the clamping piece, and the clamping piece is clamped in the groove and abuts against the clamping piece.

[0017] Preferably, the gear assembly further comprises a handle connected to the gear shaft.

[0018] Preferably, the clamping device also includes an anti-slip part, which is connected to the clamping part and is passed through the support. The surface of the anti-slip part is provided with threads. When the pressure reducing valve is subjected to a water pressure resistance test or an air pressure resistance test, the clamping part has a tendency to move in the direction of loosening the pressure reducing valve. The anti-slip part is used to provide resistance to the movement of the clamping part.

[0019] Preferably, the transmission member is configured as a rack, and the gear assembly cooperates with the rack so that the gear assembly can drive the clamping member to move.

[0020] Preferably, the clamping device further comprises a guide post and a guide sleeve, the support comprises two side plates, the clamping member is slidably arranged between the two side plates through the guide post, and the guide sleeve is arranged between the guide post and the clamping member.

[0021] Preferably, the support is provided with a lifting lug, which can cooperate with a lifting device to drive the clamping device to move.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a clamping device, including a support, a clamping member, a gear assembly, a transmission member and a locking assembly. The support and the clamping member are respectively used to dock with the two valve port ends of the pressure reducing valve to clamp the pressure reducing valve, thereby avoiding the direct action of the pressure testing equipment on the pressure reducing valve, so that the pressure reducing valve can be installed on the pressure testing equipment or the air pressure applying mechanism through the clamping device, thereby completing the water pressure resistance test or the air pressure resistance test. The movement of the gear assembly relative to the transmission assembly can drive the clamping member to move to clamp or loosen the pressure reducing valve, and the locking assembly is locked to fix the state of the support and the clamping member when clamping the pressure reducing valve, so that the pressure reducing valve is not easily damaged during the test and is not easily fallen off the clamping device, thereby improving the test efficiency and the safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the clamping device provided by an embodiment of the utility model;

[0025] Figure 2 This is another view of the clamping device provided by an embodiment of the present utility model;

[0026] Figure 3 This is an exploded view of the first docking member, the second docking member, the first locking member and the second locking member provided in an embodiment of the present utility model;

[0027] Figure 4 This is another exploded view of the first docking member, the second docking member, the first locking member and the second locking member provided in an embodiment of the present utility model;

[0028] Figure 5 It is a structural schematic diagram of the gear shaft and handle provided in an embodiment of the present utility model.

[0029] In the picture:

[0030] 1. Support; 11. First docking member; 111. First connecting hole; 12. Guide column; 13. Side plate; 131. Through hole; 14. Lifting lug; 15. Weight reduction opening; 16. Weight reduction groove;

[0031] 2. Clamping member; 21. Second docking member; 211. Second communicating hole;

[0032] 3. Gear assembly; 31. Gear; 32. Gear shaft; 321. Groove; 33. Handle;

[0033] 4. Transmission parts; 41. Mounting port;

[0034] 51, first locking member; 511, third communication hole; 52, second locking member; 521, fourth communication hole;

[0035] 6. Anti-slip parts;

[0036] 100. Pressure reducing valve. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0038] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0041] like Figures 1 to 5 As shown, this embodiment provides a clamping device, so that the pressure reducing valve 100 can be installed on a water pressure applying mechanism or a gas pressure applying mechanism, so that the pressure reducing valve 100 can undergo a water pressure resistance test or a gas pressure resistance test.

[0042] In some embodiments, the clamping device includes a support 1, a clamping member 2, a gear assembly 3, a transmission member 4, and a locking assembly. The clamping member 2 is slidably connected to the support 1. The support 1 and the clamping member 2 are respectively used to dock with the two valve ports of the pressure reducing valve 100 to clamp the pressure reducing valve 100. The gear assembly 3 is connected to the clamping member 2, and the transmission member 4 is provided on the support 1. The movement of the gear assembly 3 relative to the transmission member 4 can drive the clamping member 2 to move to clamp or release the pressure reducing valve 100. The locking assembly is locked to fix the support 1 and the clamping member 2 in the state in which the pressure reducing valve 100 is clamped.

[0043] The support 1 and the clamping member 2 are respectively used to dock with the two valve port ends of the pressure reducing valve 100 to clamp the pressure reducing valve 100, thereby preventing the pressure testing equipment from directly acting on the pressure reducing valve 100. This allows the pressure reducing valve 100 to be installed on the pressure testing equipment or the air pressure applying mechanism through the clamping device, thereby completing the water pressure resistance test or the air pressure resistance test. The movement of the gear assembly 3 relative to the transmission assembly can drive the clamping member 2 to move to clamp or loosen the pressure reducing valve 100. The locking assembly is locked to fix the state of the support 1 and the clamping member 2 clamping the pressure reducing valve 100, making the pressure reducing valve 100 less likely to be damaged or fall off the clamping device during the test, thereby improving the test efficiency and safety of the test process.

[0044] Specifically, the transmission member 4 is configured as a rack, and the gear assembly 3 cooperates with the rack to enable the gear assembly 3 to drive the clamping member 2 to move. This transmission method, in which the gear 31 and rack are combined, is easy to operate and has a long service life, eliminating the need for frequent replacement of the gear 31 or rack. In this embodiment, to facilitate rack installation, two mounting openings 41 are provided on the transmission member 4, allowing the connection member 4 to be mounted on the support 1. In other embodiments, an electric push rod can be connected to the clamping member 2, which can be extended and retracted to drive the clamping member 2 to move.

[0045] Preferably, if Figure 1 and Figure 2 As shown, in order to facilitate the overall movement of the clamping device so that the pressure reducing valve 100 can be installed on different pressure applying mechanisms, a lifting lug 14 is provided on the support 1, and the lifting lug 14 can cooperate with the lifting device to drive the clamping device to move.

[0046] Preferably, in order to reduce the weight of the clamping device and make it more convenient to transfer the clamping device as a whole, a weight-reducing groove 16 and a weight-reducing opening 15 are provided on the support 1 .

[0047] To facilitate the movement of the clamping member 2, the clamping device further includes guide posts 12 and guide sleeves (not shown). The support 1 includes two side panels 13. The clamping member 2 is slidably disposed between the two side panels 13 via the guide posts 12. The guide sleeves are disposed between the guide posts 12 and the clamping member 2. In this embodiment, four guide posts 12 are disposed between the two side panels 13, one at each corner of the two side panels 13. Four guide sleeves are provided on the clamping member 2 corresponding to the four guide posts 12. The arrangement of four sets of guide posts 12 and guide sleeves ensures more stable movement of the clamping member 2. The guide sleeves are equipped with bearings, ensuring smoother sliding of the clamping member 2.

[0048] like Figure 1 、 Figure 3 and Figure 4 As shown, in order to enable the clamping device to more stably clamp the pressure reducing valve 100 and allow the pressure detection medium to pass into the pressure reducing valve 100, a first docking member 11 is provided on the support 1, and a second docking member 21 is provided on the clamping member 2. The first docking member 11 is used to dock with one valve port end of the pressure reducing valve 100, and the second docking member 21 is used to dock with the other valve port end of the pressure reducing valve 100. The first docking member 11 is provided with a first connecting hole 111, and the second docking member 21 is provided with a second connecting hole 211. The pressure detection medium can pass into the pressure reducing valve 100 through the first connecting hole 111 and the second connecting hole 211. In this embodiment, the shape of the surfaces where the first docking member 11 and the second docking member 21 dock with the pressure reducing valve 100 is consistent with the shape of the valve port of the pressure reducing valve 100, so that the pressure reducing valve 100 is not easily dislodged when the first docking member 11 and the second docking member 21 clamp the pressure reducing valve 100.

[0049] The locking assembly includes a first locking member 51 and a second locking member 52. The first locking member 51 is used to lock the first docking member 11 to the support 1. The first locking member 51 is provided with a third connecting hole 511, which communicates with the first connecting hole 111. The second locking member 52 is used to lock the second docking member 21 to the clamping member 2. The second locking member 52 is provided with a fourth connecting hole 521, which communicates with the second connecting hole 211. The first and second locking members 51 and 52 not only secure the first and second docking members 11 and 21 but also provide a channel for the pressure detection medium to flow from the hydraulic or pneumatic pressure mechanism into the pressure reducing valve 100.

[0050] Preferably, if Figure 1 and Figure 2 As shown, in order to facilitate the pressure detection medium to flow into the pressure reducing valve 100 through the support 1, a through hole 131 is provided on the side plate 13 of the support 1. The water pressure applying mechanism or the air pressure applying mechanism can pass through the through hole 131 to communicate with the second locking member 52, and transport the pressure detection medium to the pressure reducing valve 100 through the fourth connecting hole 521.

[0051] like Figure 1 and Figure 5 As shown, in order for the gear assembly 3 to drive the clamping member 2 to move, the gear assembly 3 includes a gear 31 and a gear shaft 32 . The gear shaft 32 is transmission-connected to the clamping member 2 , and the gear 31 is sleeved on the gear shaft 32 .

[0052] Furthermore, in order to disengage the gear shaft 32 and the clamping member 2 during the rotation of the gear shaft 32 and prevent the gear shaft 32 from shaking during the rotation, the gear assembly 3 also includes a clamping member. One end of the gear shaft 32 passes through the clamping member 2, and the other end is connected to the gear 31. A groove 321 is provided at the end of the gear shaft 32 passing through the clamping member 2. The clamping member is clamped in the groove 321 and abuts against the clamping member 2.

[0053] Preferably, the gear assembly 3 further includes a sliding member, which is provided between the clamping member 2 and the gear shaft 32. In this embodiment, the sliding member is a bearing, and the provision of the sliding member can reduce friction between the gear shaft 32 and the clamping member 2, thereby preventing wear of the gear shaft 32 or the clamping member 2 during rotation.

[0054] Preferably, the gear assembly 3 further includes a handle 33, which is connected to the gear shaft 32. The handle 33 is provided so that the operator can hold and rotate it to drive the gear shaft 32 to rotate.

[0055] The clamping device also includes an anti-slip member 6, which is connected to the clamping member 2 and extends through the support 1. The anti-slip member 6 has threads on its surface. When the pressure reducing valve 100 undergoes a hydraulic or pneumatic pressure test, the clamping member 2 tends to move toward releasing the pressure reducing valve 100. The anti-slip member 6 is used to provide resistance to the movement of the clamping member 2. During the hydraulic or pneumatic pressure test of the pressure reducing valve 100, the provision of the anti-slip member 6 helps to secure the support 1 and the clamping member 2 in the state of clamping the pressure reducing valve.

[0056] When the clamping device provided in this embodiment is in use, the handle 33 is rotated to move the gear 31 to the transmission member 4 to increase the distance between the first docking member 11 and the second docking member 21; one valve port end of the pressure reducing valve 100 to be tested is docked with the first docking member 11, and the handle 33 is rotated to move the gear 31 on the transmission member 4 in a direction close to the first docking member 11 to clamp the pressure reducing valve 100 to be tested; the clamping device is installed to a water pressure applying mechanism or a gas pressure applying mechanism and a water pressure resistance test or a gas pressure resistance test is performed; after the test is completed, the handle 33 is rotated to move the gear 31 on the transmission member 4 in a direction away from the first docking member 11 to remove the tested pressure reducing valve 100 from the clamping device.

[0057] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A clamping device for clamping a pressure reducing valve (100), characterized in that: The clamping device comprises: Support (1); A clamping member (2) is slidably connected to the support (1), and the support (1) and the clamping member (2) are respectively used to dock with two valve port ends of the pressure reducing valve (100) to clamp the pressure reducing valve (100); a gear assembly (3) and a transmission member (4), wherein the gear assembly (3) is connected to the clamping member (2), and the transmission member (4) is provided on the support (1), and the gear assembly (3) can drive the clamping member (2) to move relative to the transmission member (4) to clamp or release the pressure reducing valve (100); A locking assembly is provided, wherein the locking assembly is locked to fix the state in which the support (1) and the clamping member (2) clamp the pressure reducing valve (100).

2. The clamping device according to claim 1, characterized in that The support (1) is provided with a first docking member (11), and the clamping member (2) is provided with a second docking member (21). The first docking member (11) is used to dock with one valve port end of the pressure reducing valve (100), and the second docking member (21) is used to dock with the other valve port end of the pressure reducing valve (100). The first docking member (11) is provided with a first connecting hole (111), and the second docking member (21) is provided with a second connecting hole (211). The pressure detection medium can pass into the pressure reducing valve (100) through the first connecting hole (111) and the second connecting hole (211).

3. The clamping device according to claim 2, characterized in that The locking assembly comprises: a first locking member (51) for locking the first docking member (11) to the support (1); a third communicating hole (511) is provided on the first locking member (51), and the third communicating hole (511) is communicated with the first communicating hole (111); The second locking member (52) is used to lock the second docking member (21) to the clamping member (2). The second locking member (52) is provided with a fourth communicating hole (521), and the fourth communicating hole (521) is communicated with the second communicating hole (211).

4. The clamping device according to claim 1, characterized in that The gear assembly (3) comprises a gear (31) and a gear shaft (32); the gear shaft (32) is transmission-connected to the clamping member (2); and the gear (31) is sleeved on the gear shaft (32).

5. The clamping device according to claim 4, characterized in that: The gear assembly (3) further comprises a clamping member, one end of the gear shaft (32) passes through the clamping member (2), and the other end is connected to the gear (31), and the end of the gear shaft (32) passing through the clamping member (2) is provided with a groove (321), and the clamping member is clamped in the groove (321) and abuts against the clamping member (2).

6. The clamping device according to claim 4, characterized in that The gear assembly (3) further comprises a handle (33), and the handle (33) is connected to the gear shaft (32).

7. The clamping device according to any one of claims 1 to 6, characterized in that: The clamping device further includes an anti-slip member (6), which is connected to the clamping member (2) and is inserted into the support (1). The surface of the anti-slip member (6) is provided with a thread. When the pressure reducing valve (100) is subjected to a water pressure resistance test or an air pressure resistance test, the clamping member (2) has a tendency to move in a direction of loosening the pressure reducing valve (100). The anti-slip member (6) is used to provide resistance to the movement of the clamping member (2).

8. The clamping device according to any one of claims 1 to 6, characterized in that: The transmission member (4) is configured as a rack, and the gear assembly (3) cooperates with the rack so that the gear assembly (3) can drive the clamping member (2) to move.

9. The clamping device according to any one of claims 1 to 6, characterized in that: The clamping device further comprises a guide column (12) and a guide sleeve, the support (1) comprises two side plates (13), the clamping member (2) is slidably arranged between the two side plates (13) via the guide column (12), and the guide sleeve is arranged between the guide column (12) and the clamping member (2).

10. The clamping device according to any one of claims 1 to 6, characterized in that: The support (1) is provided with a lifting lug (14), and the lifting lug (14) can cooperate with a lifting device to drive the clamping device to move.

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