Clamp for testing tensile strength of gas pipe

Abstract

The utility model discloses a clamp for testing the tensile strength of a gas pipe, which relates to the technical field of clamps, and structurally comprises a support member, the support member is provided with a first cavity, and the first cavity is linearly arranged; the two piston components are arranged in the first cavity and movably connected with the inner wall of the first cavity; the two clamping components are rotationally connected with the surface of the supporting component, and one end of the supporting component makes contact with the end, away from the middle area of the first cavity, of the piston component; the two ends of the elastic component are in contact with the clamping components respectively; and a gas channel is further formed in the surface of the supporting component, the first end of the gas channel is located in the middle of the first cavity, and a gas conveying component is arranged at the second end of the gas channel.

Description

Technical Field

[0001] The utility model relates to the field of jigs, in particular to a jig for testing the tensile strength of gas pipes. Background Technique

[0002] The tensile strength of a gas pipe refers to the maximum tensile stress during the process of stretching the gas pipe until it breaks. This parameter reflects the fracture resistance of the gas pipe. In the tensile strength test of the gas pipe, it is necessary to clamp the gas pipe to be tested through a jig. However, traditional jigs often do not have the function of dynamically adjusting the clamping force during the test, and problems such as unstable clamping or excessive clamping force during the test cannot be solved, thus affecting the accuracy of the test results. Content of the Utility Model

[0003] The purpose of the utility model is to provide a jig for testing the tensile strength of gas pipes to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A jig for testing the tensile strength of gas pipes, the structure of which includes a support member, the support member is provided with a first cavity, and the first cavity is arranged in a straight line; two piston members, the piston members are arranged inside the first cavity and are movably connected to the inner wall of the first cavity; two clamping members, the clamping members are rotatably connected to the surface of the support member, and one end of the support member contacts one end of the piston member away from the middle area of the first cavity; an elastic member, the two ends of the elastic member respectively contact the clamping members; wherein, a gas channel is also opened on the surface of the support member, the first end of the gas channel is located at the middle position of the first cavity, and a gas delivery member is arranged at the second end position of the gas channel.

[0006] As a further scheme of the utility model: the clamping member is provided with a clamping area, and convex textures are arranged on the surface of the clamping area.

[0007] As a further scheme of the utility model: through slots are correspondingly opened in the thickness direction of the clamping areas of the two clamping members;

[0008] Wherein, an induction member is inlaid at the position of the through slot of one clamping member, and the induction member senses the state of the clamping member.

[0009] As a further scheme of the utility model: the induction member includes:

[0010] A housing member, the housing member includes a receiving cavity;

[0011] A rod member, the rod member passes through the housing member, and one end extends into the receiving cavity;

[0012] Support sheet, with a conductive metal arranged on one side surface of the support sheet;

[0013] First circuit, with a break point arranged in the first circuit, and the break point is arranged corresponding to the conductive metal;

[0014] Second elastic member, arranged in the receiving cavity and acting on the support sheet;

[0015] Pressing sheet, one end of the pressing sheet is rotatably connected to the housing member, and the contact rod is located at one end outside the receiving cavity.

[0016] As a further solution of the present utility model: The first circuit includes a warning device.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The present utility model discloses a fixture for testing the tensile strength of a gas pipe, which mainly consists of a support member, a piston member, a clamping member, an elastic member and a gas delivery member. A linear cavity is provided inside the support member to accommodate and support the movement of the piston member. The piston member is movably connected to the inner wall of the cavity and can move freely in the cavity while maintaining good sealing performance. The clamping member is connected to the support member by a rotational connection method and can adapt to gas pipes of different shapes and sizes. The elastic member is located between the clamping members to provide additional elasticity and restoring force to ensure the stability and continuity of the clamping force. The gas channel and the gas delivery member are used to control the movement of the piston member and the magnitude of the clamping force. When in use, by adjusting the gas pressure, the clamping force of the fixture can be controlled to adapt to different test requirements. After the test is completed, when the gas pressure is reduced, the piston member will release the clamping force under the restoring force of the elastic member, facilitating the removal of the gas pipe to be tested. The overall design enables the fixture to precisely adjust the clamping force and ensures the accuracy and reliability of the test. Description of the Drawings

[0019] Figure 1 It is a schematic top view of the fixture in an embodiment.

[0020] Figure 2 It is a schematic three-dimensional external view of the fixture in an embodiment.

[0021] Figure 3 It is a schematic structural view of the induction member in an embodiment. Detailed Embodiment

[0022] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.

[0023] Embodiments of the present patent will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present patent and should not be construed as limiting the present patent.

[0024] In the description of the present patent, it should be understood that the orientation or positional relationships indicated by the terms "middle", "bottom", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "both sides", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present patent.

[0025] In the description of the present patent, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "joined", "assembled" should be understood in a broad sense. For example, it can be fixedly connected, arranged, or detachably connected, arranged, or integrally connected, arranged. For those of ordinary skill in the art, the specific meanings of the above terms in the present patent can be understood according to specific circumstances.

[0026] Please refer to Figure 1 , an embodiment discloses a fixture for testing the tensile strength of a gas pipe. Its structure includes a support member 1. The support member 1 is provided with a first cavity, and the first cavity is linearly arranged. There are two piston members 2, which are arranged inside the first cavity and are movably connected to the inner wall of the first cavity. There are two clamping members 3, and the clamping members 3 are rotatably connected to the surface of the support member 1. One end of the support member 1 contacts one end of the piston member 2 away from the middle area of the first cavity. There is an elastic member 4, and the two ends of the elastic member 4 respectively contact the clamping members 3. Among them, a gas channel is also provided on the surface of the support member, Figure 1 In

[0027] In the above embodiments, a linear first cavity is arranged inside the support member. The cavity accommodates the piston member and provides a space for its movement. The piston member is arranged inside the first cavity and is movably connected to the inner wall of the cavity. The piston member can move freely inside the cavity while maintaining good sealing performance to prevent gas leakage. The number of piston members is two, and they are respectively located at both ends of the first cavity, and are driven to move by the change of gas pressure. The clamping member is the part in the fixture that directly contacts the gas pipe to be measured. The clamping member is connected to the surface of the support member by a rotational connection method. This connection method allows the clamping member to rotate freely within a certain angle range to adapt to gas pipes of different shapes and sizes. One end of each clamping member contacts a piston member. When the piston member moves under the action of gas pressure, it will push or pull the clamping member, thereby changing the clamping force on the gas pipe. This design enables the fixture to provide adjustable clamping force according to different test requirements. The elastic member is located between the two clamping members, and its two ends respectively contact the two clamping members. The function of the elastic member is to provide additional elasticity and restoring force for the fixture to ensure the stability and continuity of the clamping force during the test. When the clamping member is displaced under the action of an external force, the elastic member will deform and store elastic potential energy. Once the external force disappears, the elastic member will release the stored potential energy and push the clamping member back to its original position, thereby maintaining a stable clamping of the gas pipe. In order to control the movement of the piston member and the magnitude of the clamping force, a gas channel is opened on the surface of the support member. The first end of the gas channel is located at the middle position of the first cavity and is connected to the inside of the cavity. The second end is connected to a gas delivery member for delivering or extracting gas into the gas channel. By adjusting the working state of the gas delivery member, the gas pressure inside the gas channel can be changed, thereby controlling the position and movement speed of the piston member inside the cavity. This design enables the fixture to accurately adjust the magnitude and change speed of the clamping force according to test requirements.

[0028] When using this fixture to conduct a tensile strength test on a gas pipe, first place the gas pipe to be measured between the two clamping members. Then, deliver gas into the gas channel through the gas delivery member to increase the gas pressure inside the cavity. As the gas pressure increases, the piston member will move towards both ends, pushing the clamping member to clamp the gas pipe. During the test, the magnitude of the clamping force can be adjusted in real time by adjusting the working state of the gas delivery member. At the same time, the elastic member will ensure the stability and continuity of the clamping force, preventing test errors caused by external interference. When the test is completed, extract the gas in the gas channel through the gas delivery member to reduce the gas pressure inside the cavity. At this time, the piston member will move towards the middle under the restoring force of the elastic member, releasing the clamping force on the gas pipe. Finally, the gas pipe to be measured can be conveniently taken out to complete the entire test process.

[0029] Please continue to refer to Figure 1 , further, the clamping member 3 is provided with a clamping area, and the surface of the clamping area is provided with raised textures, so as to increase the friction force between the clamping member and the gas pipe, ensuring that during the tensile test, the gas pipe will not slip off due to insufficient clamping force of the fixture, thereby ensuring the safety of the test and the accuracy of the data.

[0030] Please refer to Figure 2 , in an embodiment, notches 31 are correspondingly formed in the clamping areas of the two clamping members 3 along the thickness direction; among them, an induction member 6 is inlaid at the position of the notch 31 of one clamping member 3, and the induction member senses the state of the clamping member 3.

[0031] Specifically, the formation of the notch 31 provides space for the arrangement of the induction member 6. At the position of the notch 31 of one clamping member 3, the induction member 6 is particularly inlaid, which can sense the state of the clamping member 3 in real time. When the clamping member 3 is in the clamping or releasing state, the state of the induction member 6 changes. For example, when the clamping member 3 clamps or releases the object to be tested (such as a gas pipe), the state of the induction member 6 itself changes. When the pipe breaks away from the fixture during the test, the induction member 6 will give an early warning to remind relevant personnel to avoid abnormal experiments.

[0032] Please refer to Figure 3 , in an embodiment, the induction member 6 includes a housing member 61, and the housing member 61 includes a receiving cavity; a rod member 62 passes through the housing member 61 and one end extends into the receiving cavity; a conductive metal is arranged on one side surface of the support piece; the first circuit 64 is provided with a break point, and the break point is correspondingly arranged with the conductive metal; a second elastic member is arranged in the receiving cavity and acts on the support piece; one end of the pressing piece is rotatably connected to the housing member 61 and contacts one end of the rod member 62 outside the receiving cavity.

[0033] Specifically, the sensing member 6 includes a housing member 61 with a receiving cavity inside, which provides protection and working space for various internal components. The rod member 62 passes through the housing member 61, with one end extending into the receiving cavity and the other end located outside the housing to sense the state change of the clamping member 3. When the clamping member 3 performs a clamping or releasing action, this physical change is transmitted through the rod member 62 to the inside of the sensing member 6. Inside the receiving cavity, one side surface of the support sheet is covered with conductive metal, which precisely corresponds to the break point on the first circuit 64. When the state change of the clamping member 3 is transmitted through the rod member 62 to the receiving cavity, it causes the movement of the support sheet, which makes the conductive metal contact or separate from the break point, thereby changing the on / off state of the first circuit 64. To ensure the sensitivity and accuracy of the sensing member 6, a second elastic member is also arranged inside the receiving cavity. This elastic member acts on the support sheet, enabling it to return to its original position after being subjected to an external force. When the clamping member 3 changes from the clamping state to the releasing state, the second elastic member helps the support sheet to reset, preparing for the next state change. One end of the pressing sheet 66 is rotatably connected to the housing member 61, and the other end contacts the end of the rod member 62 located outside the receiving cavity. This design enables the pressing sheet 66 to work like a lever, transmitting the state change of the clamping member 3 through the rod member 62 into the receiving cavity, thereby affecting the state of the support sheet and the first circuit 64.

[0034] Furthermore, the first circuit 64 includes a warning device. When the warning device senses the clamped object, it reminds the operator through signals in the form of sound, light, or other forms. Specifically, when the state of the clamping member 3 changes, such as when the gas pipe is correctly clamped, this change is transmitted through the rod member 62, the support sheet, and the conductive metal thereon to the first circuit 64, resulting in the contact between the break point and the conductive metal, thereby changing the on / off state of the circuit, and the warning device will be triggered.

[0035] In summary, the present invention discloses a fixture for testing the tensile strength of gas pipes, which mainly consists of a support member, a piston member, a clamping member, an elastic member, and a gas delivery member. A linear cavity is provided inside the support member to accommodate and support the movement of the piston member. The piston member is movably connected to the inner wall of the cavity and can move freely inside the cavity while maintaining good sealing performance. The clamping member is connected to the support member by a rotational connection method and can adapt to gas pipes of different shapes and sizes. The elastic member is located between the clamping members to provide additional elasticity and restoring force to ensure the stability and continuity of the clamping force. The gas channel and the gas delivery member are used to control the movement of the piston member and the magnitude of the clamping force. During use, the clamping force of the fixture can be controlled by adjusting the gas pressure, so as to adapt to different test requirements. After the test is completed, when the gas pressure is reduced, the piston member will release the clamping force under the action of the restoring force of the elastic member, facilitating the removal of the gas pipe to be tested. The entire design enables the fixture to precisely adjust the clamping force and ensures the accuracy and reliability of the test.

[0036] The above are only the preferred embodiments of the present utility model. It should be noted that for those skilled in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these should also be regarded as the protection scope of the present utility model, which will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. A fixture for testing the tensile strength of a gas pipe, characterized in that: include: A support member (1), the support member (1) being provided with a first cavity, the first cavity being arranged in a straight line; Two piston components (2), the piston components (2) being arranged inside the first cavity and movably connected to the inner wall of the first cavity; Two clamping members (3), the clamping members (3) being rotatably connected to the surface of the support member (1), one end of the support member (1) contacting an end of the piston member (2) away from the middle area of ​​the first cavity; An elastic member (4), wherein two ends of the elastic member (4) respectively contact the clamping member (3); A gas channel is also provided on the surface of the support member, a first end of the gas channel is located in the middle of the first cavity, and a gas conveying member (5) is arranged at the second end of the gas channel.

2. A fixture for testing the tensile strength of a gas pipe according to claim 1, characterized in that: The clamping member (3) is provided with a clamping area, and a surface of the clamping area is provided with a raised texture.

3. A fixture for testing the tensile strength of a gas pipe according to claim 2, characterized in that: The clamping areas of the two clamping members (3) are respectively provided with slots (31) along the thickness direction; A sensing component (6) is embedded and arranged at the position of a notch (31) of the clamping component (3), and the sensing component senses the state of the clamping component (3).

4. A fixture for testing the tensile strength of a gas pipe according to claim 3, characterized in that: The sensing component (6) comprises: A housing component (61), the housing component (61) comprising a receiving cavity; A rod (62), wherein the rod (62) passes through the housing component (61) and one end of the rod extends to the receiving cavity; A supporting sheet, wherein a conductive metal is arranged on one side surface of the supporting sheet; A first circuit (64), wherein the first circuit (64) is provided with a circuit breaker point, wherein the circuit breaker point is arranged corresponding to the conductive metal; a second elastic member (63), the second elastic member being arranged in the receiving cavity and acting on the supporting sheet; A pressing sheet (66), one end of which is rotatably connected to the outer shell component (61) and contacts an end of the rod (62) located outside the storage cavity.

5. A fixture for testing the tensile strength of a gas pipe according to claim 4, characterized in that: The first circuit (64) includes an alarm device.

Images