Clamp

Abstract

The utility model relates to a clamp which comprises the components of a housing which is provided with a first cavity and a first opening which are communicated; at least part of the first assembly is located in the first cavity and comprises a main body and a first sealing piece, the main body is provided with a second cavity communicated with the first opening, the first sealing piece is located in the second cavity, and the main body is configured to be capable of extruding the first sealing piece; the push rod assembly is located at the end away from the first opening, the push rod assembly is connected with the shell in a limiting mode, and the push rod assembly is configured to abut against the first assembly and can keep the first assembly in an abutting state. The first assembly can abut against the push rod assembly, so that sealing release of the connecting pipe and the first sealing piece caused by the fact that the first assembly is far away from the connecting pipe of the to-be-detected product in the leak detection process of the to-be-detected product is prevented, and the leak detection accuracy of the to-be-detected product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a leak detection clamp for a heat exchanger. Background Art

[0002] In the related art, the sealing of the heat exchanger is checked to see if it is qualified. Generally, nitrogen is filled inside the heat exchanger to check for gas leaks. A leak detection fixture is usually used for the leak detection. However, when the leak detection fixture is used frequently, some parts of the fixture may become loose, especially some operating parts of the fixture (such as the operating lever). Once loosened, it may cause the connection between the fixture and the heat exchanger pipe to be loose, resulting in poor sealing of the fixture and the pipe. Gas leakage may easily occur during the detection process, thereby affecting the accuracy of the leak detection result. Utility Model Content

[0003] The present application provides a clamp that can improve the tightness and stability of the clamp and reduce the looseness of the clamp.

[0004] The present application provides a clamp, which includes:

[0005] A housing, wherein the housing has a first cavity and a first opening, wherein the first cavity is in communication with the first opening;

[0006] a first component, at least a portion of which is located in the first cavity, the first component comprising a main body and a first sealing member, the main body having a second cavity, the second cavity being communicated with the first opening, the first sealing member being located in the second cavity, the main body being located at an end away from the first opening, and the main body being configured to squeeze the first sealing member;

[0007] A connector, the connector is connected to the main body, and a flow channel of the connector can communicate with the second cavity;

[0008] The push rod assembly is located at one end away from the first opening of the shell, and the push rod assembly is limitedly connected to the shell. The push rod assembly can limit the first component from moving from an abutment state to a released abutment state. The push rod assembly is located at one end away from the first opening, and the push rod assembly is limitedly connected to the shell. The push rod assembly is configured to abut the first component and to keep the first component in an abutment state under working conditions.

[0009] In the embodiment provided by the present application, the push rod assembly of the clamp is located at one end away from the first opening, the push rod assembly is limitedly connected to the shell, and the push rod assembly is configured to be able to abut the first assembly and to maintain the first assembly in an abutting state under working conditions. Therefore, the loosening of the push rod assembly can be reduced, the tight stability of the clamp can be improved, the sealing between the clamp and the product to be inspected can be improved, and the accuracy of leak detection on the product to be inspected can be improved.

[0010] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of a clamp provided in the present application in a specific embodiment, wherein the clamp is in an abutting state;

[0012] Figure 2 for Figure 1 A top view of

[0013] Figure 3 for Figure 2 AA section view;

[0014] Figure 4 for Figure 3 A partial enlarged view of part I;

[0015] Figure 5 for Figure 1 A schematic diagram of the structure of the clamp in the released abutment state;

[0016] Figure 6 for Figure 1 A schematic diagram of the structure of the fixture without the shell;

[0017] Figure 7 for Figure 5 A schematic diagram of the structure of the fixture without the shell;

[0018] Figure 8 for Figure 1 A schematic diagram of the matching structure of the middle driving member, the rotating shaft and the limiting member in a specific embodiment;

[0019] Fig. 9 for Figure 8 A schematic diagram of the structure of the cooperation between the middle driving member and the limiting member;

[0020] Fig.10 for Figure 8 A schematic diagram of the structure of the locking member;

[0021] Fig.11 for Figure 8 A schematic diagram of the structure of the cooperation between the rotating shaft and the torsion spring;

[0022] Fig.12 This is a schematic structural diagram of the clamp provided in the present application in another specific embodiment, wherein the clamp is in an abutting state;

[0023] Fig.13 for Fig.12 A schematic diagram of the structure of the middle housing, the driving member and the limiting member;

[0024] Fig.14 for Fig.13 A top view of

[0025] Fig.15 for Fig.14 Cross-sectional view along the BB direction;

[0026] Fig.16 for Fig.14 A schematic diagram of the cooperation between the middle driving member, the limiting member and the locking member;

[0027] Fig.17 for Fig.16 Exploded diagram of

[0028] Fig.18 This is a schematic structural diagram of a clamp provided in the present application in another specific embodiment, wherein the clamp is in an abutting state; Fig.19 This is a schematic structural diagram of a clamp provided in the present application in another specific embodiment, wherein the clamp is in an abutting state; Fig. 20 for Fig.19 Schematic diagram of the structure of the middle limit component.

[0029] Description of reference numerals:

[0030] 1- housing;

[0031] 11- first housing;

[0032] 111-groove;

[0033] 12- second housing;

[0034] 18-rotating shaft;

[0035] 20- push rod assembly;

[0036] 2-Putter;

[0037] 21-operating handle;

[0038] 22- driving member;

[0039] 3-Limiting components;

[0040] 31-limiting member;

[0041] 311-limiting groove;

[0042] 312-tooth portion;

[0043] 32-locking member;

[0044] 321-limiting protrusion;

[0045] 322-card slot;

[0046] 323-first sleeve;

[0047] 324-operation unit;

[0048] 33-torsion spring;

[0049] 331-Butt;

[0050] 34-first elastic member;

[0051] 35- second sleeve;

[0052] 36-card connection block;

[0053] 37-limiting block;

[0054] 371-Second opening;

[0055] 38-spring pin;

[0056] 4- connector;

[0057] 5- Take over;

[0058] 6- first component;

[0059] 61-main body;

[0060] 611-Second cavity;

[0061] 62-clamping member;

[0062] 621- second elastic member;

[0063] 63- second sealing member;

[0064] 64-first push ring;

[0065] 65-second push ring;

[0066] 66 - First seal.

[0067] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0068] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0069] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0070] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0071] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0072] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0073] The embodiment of the present application provides a clamp, Figure 1 It is a schematic structural diagram of a clamp provided in the present application in a specific embodiment, wherein the clamp is in an abutting state; Figure 2 for Figure 1 A top view of the Figure 1 and Figure 2 As shown, the clamp comprises a housing 1 and a push rod assembly 20 and a joint 4 connected to the housing 1. The clamp is used to clamp a pipe 5 of a product to be inspected, so as to perform a leak test on the product to be inspected.

[0074] Figure 3 for Figure 2 AA section view, Figure 4 for Figure 3 A partial enlarged view of part I in the figure. Figure 3 and Figure 4As shown, the housing 1 has a first cavity and a first opening connected to the first cavity. One end of the pipe 5 of the product to be inspected can extend into the first cavity through the first opening, and the inner cavity of the joint 4 can also be connected to the first cavity. The push rod assembly 20 is located at the end away from the first opening. The first assembly 6 includes a main body 61 and a first sealing member 66. The main body 61 has a second cavity 611, and a part of the main body 61 is located in the first cavity of the housing 1. The main body 61 has a second opening at one end away from the push rod assembly 20 along its axial direction. The second opening is located in the first cavity, so that the first cavity and the second cavity 611 are connected through the second opening. One end of the pipe 5 of the product to be inspected can extend into the second cavity 611 through the first opening and the second opening. The first sealing member 66 is located in the second cavity 611 and is fixedly connected to the main body 61. The first sealing member 66 is located at the end away from the first opening.

[0075] Figure 5 for Figure 1 The push rod assembly 20 includes a push rod 2, which is used to drive the main body 61 to move so that the clamp is in a state of releasing the abutment. Figure 1 The abutment state shown and Figure 5 The clamp is switched between the release abutment states shown in FIG. Figure 1 In the abutting state shown, when one end of the pipe 5 of the product to be inspected extends into the second cavity 611, the one end of the pipe 5 and the main body 61 can press and seal the first sealing member 66 from both ends of the first sealing member 66, so that the clamp is in a sealed state. At this time, the product to be inspected can be leak-checked through the joint 4, and because the pipe 5 and the main body 61 press the first sealing member 66 to achieve sealing, the reliability of leak detection can be improved. Figure 5 In the released abutment state shown, one end of the pipe 5 of the product to be inspected is released from the first sealing member 66, and the clamp is in the released abutment state. In the released abutment state, there may be a gap between one end of the pipe 5 and the first sealing member 66, or they may abut (i.e., there is no gap between the two, and they are not compressed and sealed).

[0076] The push rod assembly 20 further includes a limiting component 3, which can limit the first assembly 6 from moving from the above-mentioned abutment state to the release abutment state, that is, the limiting component 3 can limit the clamp to the state as follows: Figure 1 The abutment state shown prevents the seal between the connecting pipe 5 and the first sealing member 66 from being released when the first component 6 moves away from the connecting pipe 5 of the product to be inspected during the leak detection of the product to be inspected. For example, the limiting component 3 can prevent the seal between the connecting pipe 5 and the first sealing member 6 from being released when the push rod 2 is accidentally touched during the leak detection of the product to be inspected, thereby improving the accuracy of leak detection of the product to be inspected.

[0077] Among them, Figure 4In the illustrated embodiment, the inner wall of the main body 61 has a step portion, and one end of the first seal 66 along the axial direction of the shell 1 abuts against the step portion, and the other end of the first seal 66 along the axial direction of the shell 1 is used to abut against the connecting pipe 5, so that the first seal 66 can be compressed by the connecting pipe 5 and the step portion to achieve compression sealing.

[0078] In a specific embodiment, Figure 3 As shown, the housing 1 may include a first housing 11 and a second housing 12, which are detachably connected, and a third sealing member may be provided at the position where the two are connected.

[0079] In a specific embodiment, Figure 5-7 As shown, the push rod 2 includes an operating handle 21 and a driving member 22 that are fixedly connected, wherein the driving member 22 is rotatably connected to the shell 1, and when the operating handle 21 drives the driving member 22 to rotate relative to the shell 1, the rotating driving member 22 can push the main body 61 to move toward one end of the first opening, so that the first component 6 is in the above-mentioned abutment state.

[0080] In a specific embodiment, Figure 4 As shown, the first component 6 may also include a clamping member 62, a push ring and a second sealing member 63, wherein the push ring is located in the first cavity of the housing and is spaced apart from the main body 61 along the axial direction of the housing 1, the second sealing member 63 is provided between the push ring and the main body 61, and the clamping member 62 is located on the side of the push ring away from the main body 61. The clamping member 62 is used to clamp the pipe 5 of the product to be inspected. In a specific embodiment, the clamping member 62 may include a plurality of second elastic members 621 distributed in the radial direction. When the pipe 5 of the product to be inspected extends into the first cavity of the housing 1, the main body 61, the second sealing member 63, the push ring and the plurality of second elastic members 621 are sleeved on the outside of the pipe 5, and in the radial direction, a portion of the main body 61, the second sealing member 63, the push ring and the plurality of second elastic members 621 are located between the outer wall of the pipe 5 and the inner wall of the housing 1. Among them, the end faces of the plurality of second elastic members 621 that contact the inner wall of the housing 1 are inclined surfaces, and the radial dimensions of the second elastic members 621 gradually increase in the direction away from the main body 61.

[0081] Figure 6 for Figure 1 A schematic diagram of the structure of the fixture without the shell; Figure 7 for Figure 5 Schematic diagram of the structure in which the fixture is removed from the shell. Figure 5 Combination Figure 6 and Figure 7 As shown, when push rod 2 drives the clamp from 5 and Figure 7 The released contact state shown switches to Figure 1 and Figure 6In the abutment state shown, driven by the push rod 2, the main body 61 moves in a direction close to the connecting pipe 5, thereby applying a thrust toward the clamping member 62 to the second sealing member 63. The second sealing member 63 is deformed under the action of the thrust and pushes the push ring to move in the direction of the clamping member 62, and then the push ring pushes the multiple second elastic members 621 of the clamping member 62 to move in a direction away from the main body 61. Since the radial size of the second elastic member 621 gradually increases in a direction away from the main body 61, the inner wall of the shell 1 drives the second elastic member 621 to clamp the connecting pipe 5 in the radial direction, thereby reducing the risk of the connecting pipe 5 escaping from the clamp. At the same time, in the process of the main body 61 moving toward the connecting pipe 5, the first sealing member 66 located between the main body 61 and the connecting pipe 5 can be pressed to achieve sealing. At this time, the clamp is in a state as shown in FIG. Figure 1 and Figure 6 The abutment state shown.

[0082] When push rod 2 drives the clamp from Figure 1 and Figure 6 The abutment state shown switches to Figure 5 and Figure 7 When in the released abutment state shown, under the drive of the push rod 2, the main body 61 moves in the direction away from the connecting pipe 5, thereby reducing or releasing the thrust of the second sealing member 63 toward the clamping member 62, allowing the second sealing member 63 to recover its deformation, and reducing or releasing the thrust of the second sealing member 63 on the push ring, thereby reducing or releasing the thrust of the push ring on the multiple second elastic members 621 of the clamping member 62, causing the multiple second elastic members 621 to move in the direction close to the main body 61. Since the radial size of the second elastic member 621 gradually decreases in the direction close to the main body 61, the radial force of the inner wall of the shell 1 acting on the second elastic member 621 is reduced, thereby reducing the clamping force of the clamping member 62 on the connecting pipe 5 or releasing the clamping of the clamping member 62 on the connecting pipe 5.

[0083] Specifically, Figure 6 and Figure 7 In the illustrated embodiment, the push ring may include a first push ring 64 and a second push ring 65 spaced apart along the axial direction of the shell 1, the second push ring 65 is located between the first push ring 64 and the main body 61, and a second seal 63 is provided between the second push ring 65 and the main body 61, and between the second push ring 65 and the first push ring 64.

[0084] The following embodiments describe in detail the specific structure of the limiting component 3 that can limit the first component 6 from moving from the above-mentioned abutting state to the released abutting state.

[0085] Figure 8 for Figure 1 A schematic diagram of the matching structure of the middle driving member, the rotating shaft and the limiting member in a specific embodiment; Fig. 9 for Figure 8A schematic diagram of the structure of the cooperation between the middle driving member and the limiting member; Fig.10 for Figure 8 Please refer to the schematic diagram of the locking part. Figure 8-10 In a specific embodiment, the limiting component 3 includes a limiting component 31 and a locking component 32, wherein the locking component 32 can rotate relative to the driving component 22, and the limiting component 31 is fixed to the driving component 22 (that is, the two have no relative movement during the operation of the clamp). When the driving component 22 rotates under the drive of the operating handle 21, it can drive the limiting component 31 fixed thereto to rotate, thereby causing the limiting component 31 to rotate relative to the locking component 32.

[0086] Specifically, Figure 8-10 As shown, one of the limiting member 31 and the locking member 32 is provided with a limiting protrusion 321, and the other is provided with a limiting groove 311. When the main body 61 of the first component 6 is not in the above-mentioned abutting state, the limiting protrusion 321 and the limiting groove 311 are in a separated state, so that the limiting member 31 can rotate relative to the locking member 32 under the drive of the driving member 22; when the main body 61 of the first component 6 is in the above-mentioned abutting state, the limiting protrusion 321 can be engaged with the limiting groove 311, thereby limiting the relative rotation of the limiting member 31 and the locking member 32, limiting the rotation of the driving member 22 fixed to the limiting member 31, and further limiting the movement of the main body 61 connected to the driving member 22 along the axial direction of the housing 1, so as to compress the first sealing member 66 through the main body 61 and the pipe 5, that is, limiting the main body 61 to the abutting state of the sealing pipe 5, thereby improving the reliability of leakage detection. At the same time, in this process, since the limiting protrusion 321 and the limiting groove 311 are engaged with each other to limit the rotation of the driving member 22, the rotation of the operating handle 21 fixedly connected to the driving member 22 can be limited, thereby reducing the risk of the operating handle 21 being accidentally rotated and causing the main body 61 to leave the abutment state when the main body 61 of the clamp is in the abutment state (the clamp is in the leak detection state), further improving the reliability of the clamp in the leak detection state, and improving the reliability of leak detection.

[0087] In a specific embodiment, Fig. 9 As shown, the outer peripheral wall of the limiting member 31 is provided with a plurality of teeth 312, and a limiting groove 311 is provided between adjacent teeth 312, and the limiting member 31 is a ratchet structure. The limiting member 31 is provided with a plurality of limiting grooves 311 distributed along the circumferential direction, so that the limiting protrusion 321 can be engaged with any limiting groove 311, ensuring that the limiting protrusion 321 and the limiting groove 311 can limit the main body 61 to an abutting state, and the provision of a plurality of teeth 312 can improve the matching accuracy of the push rod assembly 20 and the first assembly 6.

[0088] In other embodiments, the limiting protrusion may also be provided on the limiting member 31 , and the limiting groove may also be provided on the locking member 32 .

[0089] Fig.11 for Figure 8 Schematic diagram of the structure of the rotating shaft and the torsion spring. Please refer to Figure 8 and Fig.11 The fixture may further include a rotating shaft 18, and a driving member 22 is rotatably connected to the rotating shaft 18, that is, the driving member 22 can rotate around the rotating shaft 18. Figure 8 and Fig.10 As shown, the locking member 32 includes a first sleeve 323 sleeved on the rotating shaft 18, and the limiting component 3 also includes a torsion spring 33 sleeved on the rotating shaft 18, the torsion spring 33 is connected to the locking member 32, and the first sleeve 323 is sleeved on the outer side of the torsion spring 33. Figure 1 In the abutment state shown, the main body 61 is in the abutment state. At this time, the locking member 32 and the limiting member 31 cooperate with each other through the limiting protrusion 321 and the limiting groove 311. The torsion spring 33 can apply elastic force to the locking member 32, thereby providing resistance to the rotation of the locking member 32, reducing the risk of the locking member 32 and the limiting member 31 being disengaged due to accidental touch, improving the sealing reliability of the clamp when it is in the leak detection state, and thereby improving the accuracy of leak detection.

[0090] When the fixture is Figure 1 The abutment state shown is switched to Figure 5 When in the released abutment state shown, the user can press the locking member 32 to limit its movement, and then drive the driving member 22 to rotate by operating the operating handle 21, thereby driving the limiting member 31 to rotate. Since the locking member 32 is pressed by the user to limit its movement, the limiting member 31 can rotate relative to the locking member 32 at this time, so that the limiting protrusion 321 is released from the limiting groove 311, thereby releasing the restriction on the limiting member 31, so that the limiting member 31 and the driving member 22 connected thereto can rotate around the rotating shaft 18, thereby switching the main body 61 from the abutment state to the released abutment state, and switching the clamp from the abutment state to the released abutment state.

[0091] Figure 8 In the embodiment shown, when the limiting member 31 has a plurality of limiting grooves 311 distributed along its circumference, the limiting protrusion 321 of the locking member 32 can be matched with the plurality of limiting grooves 311 respectively, so that not only the clamp is in a Figure 1 In the abutment state shown in FIG. 1 , the locking member 32 and the limiting member 31 are in a clamping state. Figure 5 In the released abutment state shown, the locking member 32 and the limiting member 31 are still in the engaged state.

[0092] When the fixture is Figure 5 The release state shown is switched to Figure 1When in the abutment state shown, the user can press the locking member 32 to limit its movement, and then drive the driving member 22 to rotate by rotating the operating handle 21, thereby driving the limiting member 31 to rotate. Since the locking member 32 is pressed by the user to limit its movement, the limiting member 31 can rotate relative to the locking member 32 at this time, so that the limiting protrusion 321 is released from the limiting groove 311, thereby releasing the restriction on the limiting member 31, so that the limiting member 31 and the driving member 22 connected thereto can rotate around the rotating shaft 18, thereby switching the main body 61 from the released abutment state to the abutment state, and switching the clamp from the released abutment state to the abutment state.

[0093] Therefore, the structure of the limiting component 3 in this embodiment makes the clamp have high reliability in both the abutment state and the released abutment state. The user needs to press the locking member 32 to limit its movement before switching the state of the clamp, which further reduces the state switching of the clamp due to accidental touch and improves the reliability of the clamp's leak detection.

[0094] In a specific embodiment, Figure 8 and Fig.10 As shown, the locking member 32 further includes an operating portion 324 fixed to the first sleeve 323, the operating portion 324 extends outward relative to the first sleeve 323, and the operating portion 324 is used for the user to press, that is, when the clamp needs to switch states, the user can limit the movement of the locking member 32 by pressing the operating portion 324. The torsion spring 33 abuts against the operating portion 324, so that when the user presses the operating portion 324, the torsion spring 33 can apply a rebound force to the operating portion 324 to increase the hand feel.

[0095] In a specific embodiment, Figure 8 As shown, the locking member 32 includes two first sleeves 323 that are spaced apart, and both ends of the driving member 22 along the axial direction of the rotating shaft 18 are fixedly connected to the limiting member 31, and along the axial direction of the rotating shaft 18, the driving member 22 and the limiting member 31 are located between the two first sleeves 323. Therefore, the limiting member 31 and the locking member 32 are engaged with the two limiting grooves 311 at least through the two limiting protrusions 321, thereby improving the connection reliability between the locking member 32 and the limiting member 31.

[0096] like Fig.10 In the illustrated embodiment, the operating portion 324 is connected to the outer walls of the two first sleeves 323 and extends toward the outside of the first sleeves 323. The limiting protrusion 321 is provided on the operating portion 324 and extends toward the inside of the first sleeve 323. The end surfaces of the two first sleeves 323 that are close to each other are provided with a slot 322, and a part of the torsion spring 33 is engaged with the slot 322, thereby connecting the torsion spring 33 to the first sleeve 323.

[0097] In the above embodiments, Fig. 9As shown, during the rotation of the driving member 22 driven by the operating handle 21, the driving member 22 can drive the main body 61 to move along the axial direction of the shell 1, that is, the rotational movement of the driving member 22 can be switched to the movement of the main body 61 along the axial direction. At this time, the driving member 22 can be an eccentrically arranged structure, that is, the axial direction of the driving member 22 deviates from the axial direction of the rotating shaft 18. When the driving member 22 rotates at different angles, it can push the main body 61 to move along its axial direction.

[0098] Fig.12 This is a schematic structural diagram of the clamp provided in the present application in another specific embodiment, wherein the clamp is in an abutting state; Fig.13 for Fig.12 A schematic diagram of the structure of the middle housing, the driving member and the limiting member; Fig.14 for Fig.13 A top view of Fig.15 for Fig.14 Cross-sectional view along the BB axis.

[0099] exist Fig.12 and Fig.13 In the embodiment shown, the limiting component 3 includes a limiting member 31 and a locking member 32. The driving member 22 and the limiting member 31 are sleeved on the rotating shaft 18 of the housing 1, and the two can rotate around the rotating shaft 18. The locking member 32 and the rotating shaft 18 are fixed to each other, that is, the locking member 32 and the rotating shaft 18 are relatively stationary. The locking member 32 has a limiting protrusion 321, and the limiting member 31 is provided with a limiting groove 311. When the main body 61 is in the abutting state, the clamp is in a state as shown in FIG. Fig.12 In the abutment state shown, the limiting protrusion 321 is engaged with the limiting groove 311, thereby limiting the rotation of the limiting member 31 through the locking member 32 which is relatively stationary with respect to the rotating shaft 18, and further limiting the rotation of the driving member 22 fixedly connected to the limiting member 31, so that the main body 61 is maintained in the abutment state, reducing the risk of the driving member 22 rotating due to accidental touch and causing the main body 61 to be out of the abutment state, thereby improving the reliability of the leak detection of the clamp.

[0100] At the same time, the stopper 31 and the driving member 22 can also slide along the axial direction of the rotating shaft 18. Fig.12When the abutting state is switched to the released abutting state, the limiting member 31 and the driving member 22 are slid along the axial direction of the rotating shaft 18, so that the limiting protrusion 321 is released from the limiting groove 311, so that the limiting member 31 can rotate. At this time, the user can drive the driving member 22 connected thereto to rotate by rotating the operating handle 21, and then drive the main body 61 connected thereto to move along its axial direction through the driving member 22, so that the main body 61 is switched from the abutting state to the released abutting state, that is, the clamp is switched from the abutting state to the released abutting state. When the clamp is in the abutting state, the limiting member 31 and the driving member 22 are slid along the axial direction of the rotating shaft 18, so that the limiting protrusion 321 is engaged with the limiting groove 311, and the rotation of the limiting member 31 is limited by the locking member 32, and the rotation of the driving member 22 connected to the limiting member 31 is limited, and then the sliding of the main body 61 connected to the driving member 22 along its axial direction is limited, so that the main body 61 is maintained in the abutting state, that is, the clamp can be limited to the abutting state.

[0101] Therefore, in this embodiment, the limiting member 31 and the driving member 22 can slide along the axial direction of the rotating shaft 18 to achieve the engagement or release of the engagement between the limiting protrusion 321 and the limiting groove 311 .

[0102] Fig.16 for Fig.14 Schematic diagram of the coordination of the middle driving part, the limiting part and the locking part. Fig.17 for Fig.16 In a specific embodiment, as Figure 15-17 As shown, the limiting member 31 is fixed to the driving member 22 through a boss. One end of the locking member 32 along the axial direction thereof is fixed to the rotating shaft 18, and the outer wall of the other end has a plurality of limiting protrusions 321 distributed along its circumference, and the inner wall of the limiting member 31 has a plurality of limiting grooves 311. When the limiting member 31 and the driving member 22 move toward the locking member 32 along the axial direction of the rotating shaft 18, and the limiting grooves 311 are matched with the limiting protrusions 321, the locking member 32 can limit the rotation of the limiting member 31 and the driving member 22; when the limiting member 31 and the driving member 22 move away from the locking member 32 along the axial direction of the rotating shaft 18, and the limiting grooves 31 are separated from the limiting protrusions 321, the locking member 32 releases the restriction on the rotation of the limiting member 31, so that the limiting member 31 and the driving member 22 can rotate around the rotating shaft 18.

[0103] exist Fig.16 and Fig.17 In the illustrated embodiment, the locking member 32 may be a spline cylinder, and the limiting member 31 may be a spline shaft, so as to facilitate the relative movement of the locking member 32 and the limiting member 31 along the axial direction of the rotating shaft 18 .

[0104] In a specific embodiment, Fig.14 and Fig.15As shown, the limiting component 3 may further include a first elastic member 34, which is located on the side of the driving member 22 away from the locking member 32 in the axial direction of the rotating shaft 18, and is connected to the housing 1 and the driving member 22. When the driving member 22 and the limiting member 31 are driven to move in a direction away from the locking member 32 under the action of an external force, the limiting protrusion 321 and the limiting groove 311 can be released from the clamp, so that the clamp can switch states, and in this process, the driving member 22 and the housing 11 can compress the first elastic member 34. When the force applied to the driving member 22 and the limiting member 31 is released, under the action of the rebound force of the first elastic member 34, the driving member 22 and the limiting member 31 can be driven to move toward the locking member 32, so that the limiting protrusion 321 cooperates with the limiting groove 311, so that the limiting member 31 is automatically in a limited state, and an elastic force is applied to the limiting member 31 in the engaged state with the locking member 32, thereby reducing the risk of the limiting member 31 moving away from the locking member 32 along the axial direction of the rotating shaft 18 and disengaging from the engaged state with the locking member 32, thereby improving the reliability of the abutment state.

[0105] The limiting component 3 in each of the above embodiments limits the rotation of the driving member 22, thereby limiting the main body 61 to the abutting state. In other embodiments, the limiting component 3 can also limit the rotation of the operating handle 21 to limit the rotation of the driving member 22, thereby limiting the main body 61 to the abutting state, that is, the limiting component 3 can directly or indirectly cooperate with the operating handle 21 to limit the rotation of the operating handle 21, thereby limiting the rotation of the driving member 22, and placing the first component 6 in the abutting state.

[0106] Fig.18 FIG. 1 is a schematic diagram of the structure of the clamp provided in the present application in another specific embodiment, wherein the clamp is in an abutting state. Fig.18 As shown, the limiting component 3 includes a second sleeve 35 and a clamping block 36 fixed to each other. The second sleeve 35 is sleeved on the operating handle 21 and can slide along the operating handle 21. The housing 1 is provided with a groove 111. When the clamp is in the position as shown in FIG. Figure 1 In the abutment state shown, that is, when the main body 61 is in the abutment state (the main body 61 and the pipe 5 clamp the first sealing member 66 along the axial direction), the second sleeve 35 is driven to move downward, and the clamping block 36 is clamped with the groove 111 of the housing 1, thereby limiting the rotation of the operating handle 21, limiting the rotation of the driving member 22, and then limiting the movement of the main body 61 along its axial direction, limiting the main body 61 to the abutment state, and improving the reliability of the clamp leak detection. When the clamp needs to be switched from the abutment state to the release abutment state, it is only necessary to drive the second sleeve 35 to move upward to release the clamping block 36 from the groove 111. At this time, the user can drive the operating handle 21 to rotate, thereby driving the main body 61 to move along the axial direction through the driving member 22, so that the main body 61 is switched to the release abutment state.

[0107] Fig.19This is a schematic structural diagram of a clamp provided in the present application in another specific embodiment, wherein the clamp is in an abutting state; Fig. 20 for Fig.19 The schematic diagram of the structure of the middle limit component. Fig.19 and Fig. 20 In the illustrated embodiment, the limiting component 3 may include a second sleeve 35, a limiting block 37 and a spring pin 38. The second sleeve 35 is sleeved on the operating handle 21 and can rotate around the operating handle 21. The second sleeve 35 and the limiting block 37 are fixed to each other, that is, the two are relatively stationary. The limiting block 37 has a accommodating space, and the accommodating space has a second opening 371 connected to the accommodating space, and the side wall of the limiting block 37 is provided with a through hole connected to the accommodating space. The spring pin 38 is connected to the limiting block 37, and can move along the through hole, and can extend into the accommodating space through the through hole.

[0108] When the fixture is in Fig.19 When the main body 61 is in the abutting state shown, the second sleeve 35 can be driven to rotate around the operating handle 21, so that the limit block 37 can be rotated to be sleeved on the joint 4, that is, a part of the joint 4 is sleeved in the accommodation space of the limit block 37 through the second opening 371, and the spring pin 38 abuts against the joint 4, thereby limiting the joint 4 from being separated from the accommodation space from the second opening 371, thereby limiting the rotation of the operating handle 21, limiting the rotation of the driving member 22, and thereby limiting the movement of the main body 61 along its axial direction, limiting the main body 61 to the abutting state, and improving the reliability of the clamp leak detection. When the clamp needs to be switched from the abutting state to the released abutting state, the user applies an external force to the limit block 37 to overcome the elastic force of the spring pin 38, so that the joint 4 is separated from the accommodation space from the second opening 371. In this process, the second sleeve 35 rotates around the operating handle 21, and when the joint 4 is completely separated from the limit block 37, the operating handle 21 can be rotated. At this time, the user can drive the operating handle 21 to rotate, so that the driving member 22 can drive the main body 61 to move along the axial direction, so that the main body 61 is switched to the released contact state.

[0109] The accommodating space may be U-shaped or in other shapes, and the present application does not limit the shape of the accommodating space.

[0110] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A clamp, characterized in that: include: A housing (1), the housing (1) having a first cavity, the housing (1) also having a first opening, the first cavity being in communication with the first opening; A first component (6), at least a portion of the first component (6) is located in the first cavity, the first component comprises a main body (61) and a first sealing member (66), the main body (61) has a second cavity (611), the second cavity (611) is communicated with the first opening, the first sealing member (66) is located in the second cavity (611), the main body (61) is located at an end away from the first opening, and the main body (61) is configured to squeeze the first sealing member (66); A connector (4), the connector (4) being connected to the main body (61), and a flow channel of the connector (4) being able to communicate with the second cavity (611); A push rod assembly (20), wherein the push rod assembly (20) is located at an end away from the first opening, the push rod assembly (20) is limitedly connected to the shell (1), and the push rod assembly (20) is configured to abut the first assembly (6) and to keep the first assembly (6) in an abutting state in a working state.

2. The clamp according to claim 1, characterized in that: The push rod assembly (20) includes a push rod (2), and the push rod (2) includes an operating handle (21) and a driving member (22), the operating handle (21) is fixedly connected to the driving member (22), and the clamp also includes a rotating shaft (18), and the driving member (22) is rotatably connected to the rotating shaft (18), and the push rod can push the main body (61) to move toward one end of the first opening so that the first assembly (6) is in the abutment state.

3. The clamp according to claim 2, characterized in that: The push rod assembly (20) further comprises a limiting component (3), wherein the limiting component (3) comprises a locking component (32) and a limiting component (31), wherein the limiting component (31) is fixed to the driving component (22), and the locking component (32) is rotatable relative to the driving component (22); One of the locking member (32) and the limiting member (31) has a limiting protrusion (321), and the other of the locking member (32) and the limiting member (31) has a limiting groove (311), and the limiting protrusion (321) and the limiting groove (311) can be snap-fitted together when the first component (6) is in the abutting state.

4. The clamp according to claim 3, characterized in that: The driving member (22) is rotatably connected to the rotating shaft (18); the locking member (32) comprises a first sleeve (323) sleeved on the rotating shaft (18); the first sleeve (323) is rotatable relative to the rotating shaft (18); The limiting component (3) also includes a torsion spring (33), which is sleeved on the rotating shaft (18) and connected to the locking component (32).

5. The clamp according to claim 4, characterized in that: The locking member (32) further comprises an operating portion (324) fixedly connected to the first sleeve (323), and the torsion spring (33) abuts against the operating portion (324).

6. The clamp according to claim 5, characterized in that: The locking member (32) comprises two first sleeves (323) spaced apart from each other, one end of the driving member (22) along the axial direction of the rotating shaft (18) is connected to one of the limiting members, and the other end is connected to the other limiting member, and along the axial direction of the rotating shaft (18), the driving member (22) and the limiting member (31) are located between the two first sleeves (323); The operating portion (324) is connected to the outer walls of the two first sleeves (323) and extends toward the outside of the first sleeve (323); the limiting protrusion (321) is provided on the operating portion (324) and extends toward the inside of the first sleeve (323); the end surfaces of the two first sleeves (323) that are close to each other are provided with a slot (322), and a part of the torsion spring (33) is engaged with the slot (322).

7. The clamp according to claim 3, characterized in that: The outer peripheral wall of the limiting member (31) is provided with a plurality of teeth (312), and the limiting grooves (311) are provided between adjacent teeth (312).

8. The clamp according to claim 3, characterized in that The driving member (22) and the rotating shaft (18) are rotatably connected, and the limiting member (31) and the rotating shaft (18) are rotatably connected. The axis of the rotating shaft (18) passes through the driving member (22), and the axis of the rotating shaft (18) passes through the limiting member (31) and the driving member (22). The driving member (22) and the limiting member (31) can rotate around the rotating shaft (18) and can slide along the axial direction of the rotating shaft (18). The locking member (32) is connected to the rotating shaft (18) in a limiting manner.

9. The clamp according to claim 8, characterized in that The limiting component (3) further comprises a first elastic component (34). In the axial direction of the rotating shaft (18), the first elastic component (34) is located on a side of the driving component (22) away from the locking component (32). One end of the first elastic component (34) abuts against the driving component (22), and the other end of the first elastic component (34) abuts against the housing (1). The first elastic component (34) is sleeved on the outer side of a portion of the rotating shaft (18).

10. The clamp according to claim 1, characterized in that The push rod assembly (20) includes a push rod (2) and a limiting component (3), the push rod (2) includes an operating handle (21) and a driving member (22), the operating handle (21) and the driving member (22) are fixedly connected, the clamp also includes a rotating shaft (18), the driving member (22) is rotatably connected to the rotating shaft (18), and the limiting component (3) can directly or indirectly cooperate with the operating handle (21) to limit the rotation of the driving member (22), so as to put the first component (6) in an abutment state.

11. The clamp according to claim 10, characterized in that The limiting component (3) comprises a second sleeve (35) and a clamping block (36) fixed to each other, wherein the second sleeve (35) is sleeved on the operating handle (21) and can slide along the operating handle (21); The housing (1) has a groove (111), and the engaging block (36) can engage with the groove (111) to limit the rotation of the operating handle (21).

12. The clamp according to claim 10, characterized in that The push rod assembly (20) further comprises a limiting component (3), wherein the limiting component (3) comprises a second sleeve (35), a limiting block (37) and a spring pin (38), wherein the second sleeve (35) is sleeved on the operating handle (21) and can rotate relative to the operating handle (21), the second sleeve (35) and the limiting block (37) are fixed to each other, the limiting block (37) has a receiving space, and a through hole is provided on a side wall of the limiting block (37), and the spring pin (38) is connected to the limiting block (37) and can extend into the receiving space through the through hole; When the limit block (37) is sleeved on the joint (4), the spring pin (38) can abut against the joint (4) to limit the limit block (37) from being separated from the joint (4).

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