Exhaust type pressure measuring connector

Abstract

The utility model discloses an exhaust type pressure measuring joint, which relates to the pressure measuring joint field, and comprises a joint body and a protective cover, the outer side of the joint body is in threaded connection with the protective cover, the outer side of the joint body is in sliding connection with a movable ring, the bottom of the movable ring is provided with an annular inclined plane, and the bottom of the movable ring is embedded with extrusion blocks at equal intervals. According to the utility model, through the cooperation of the movable ring and the extrusion block and the design of the sealing gasket, the joint can keep excellent sealing performance under various working conditions, and when the extrusion block is extruded by the movable ring, the extrusion block can be extruded by the movable ring, so that the extrusion block is prevented from falling off. The sealing gasket can be uniformly and tightly pressed, so that a leak-free sealing interface is formed among the sealing gasket, the joint body and the exhaust system interface, gas leakage is effectively prevented, and the accuracy of pressure measurement or control is ensured.

Description

Technical Field

[0001] The utility model relates to the field of pressure measuring joints, in particular to an exhaust type pressure measuring joint. Background Art

[0002] In industrial production, the pressure measuring joint is an important part of the pressure measurement and control system, and its performance directly affects the stability and accuracy of the entire system.

[0003] The existing patent CN216160071U discloses an integral pressure measuring joint, which realizes pressure measurement and control through the precise matching of internal components such as valve core, spring, plunger, etc., and ensures sealing to a certain extent. However, its sealing mainly relies on the sealing ring at the rear of the valve core and the O-ring on the sealing cap. Although this sealing method can prevent gas leakage to a certain extent, its sealing effect may not be ideal when facing complex working conditions such as high pressure, high temperature or vibration. In particular, when the sealing ring is aged or worn, the sealing performance will be greatly reduced.

[0004] Secondly, the pressure test joint has limited adaptability in terms of interface size, shape or slight deformation. When faced with interfaces of different specifications or slight deformations, it may be necessary to replace the entire pressure test joint or make complex adjustments to ensure the sealing effect. Utility Model Content

[0005] In order to make up for the deficiencies of the existing technical problems, the purpose of the utility model is to provide an exhaust type pressure measuring joint, and the technical problems solved are as follows: how to improve the sealing effect of the pressure measuring joint, and how to improve the durability of the sealing of the pressure measuring joint.

[0006] In order to solve the existing technical problems, the technical solution of the utility model is as follows:

[0007] A venting pressure measuring joint comprises a joint body and a protective cover, wherein the outer side of the joint body is threadedly connected to the protective cover, the outer side of the joint body is slidably connected to a movable ring, the bottom of the movable ring is provided with an annular inclined surface, the bottom of the movable ring is equidistantly embedded with extrusion blocks, the surface of the extrusion block is inclined, the surface of the extrusion block is in contact with the annular inclined surface, one side of the extrusion block extends in an upward curved shape, and a sealing gasket is provided between the movable ring and the extrusion block.

[0008] Preferably, the top edge of the extrusion block is arranged to be curved toward the movable ring in an arc shape, which helps to enhance the stability of the extrusion block when it is extruded by the movable ring and prevents it from shifting or loosening during the extrusion process.

[0009] Preferably, grooves are equidistantly provided at the bottom of the movable ring, and the extrusion blocks are slidably embedded in the corresponding grooves, so that the extrusion blocks can slide smoothly along a preset path when squeezed by the movable ring, avoiding unnecessary shaking or dislocation.

[0010] Preferably, a retaining ring is fixedly connected to the outer side of the joint body. The retaining ring is arranged on the top of the movable ring to limit the sliding range of the movable ring and prevent it from sliding out of place excessively.

[0011] Preferably, a combined washer is sleeved on the joint body below the movable ring, further enhancing the sealing performance when the other end of the joint is connected and preventing gas leakage.

[0012] Preferably, anti-slip lines are provided on the outer wall of the protective cover, which can increase the frictional force of the user's hand when rotating or tightening the protective cover and prevent the protective cover from loosening or falling off due to hand slippage.

[0013] Preferably, the extrusion blocks are arranged in an annular array along the outer side of the joint body, so that each extrusion block can be evenly stressed when being extruded by the movable ring, thereby realizing the uniform extrusion and deformation of the sealing washer.

[0014] Preferably, a fixing ring is provided on the outer side of the joint body, which is convenient to connect the protective cover to the joint body through tools such as chains and ropes to prevent the protective cover from being lost.

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] 1. Through the cooperation of the movable ring and the extrusion blocks and the design of the sealing washer, the joint of the present utility model can maintain excellent sealing performance under various working conditions. When the extrusion blocks are extruded by the movable ring, they can evenly and tightly press the sealing washer, forming a leak-free sealing interface between the sealing washer and the joint body and the exhaust system interface, effectively preventing gas leakage and ensuring the accuracy of measuring or controlling pressure.

[0017] 2. The design of the extrusion blocks is not limited to a simple extrusion function. The inclined surface, the upwardly curved extension part on its surface, and the arc-shaped bending design at the top edge of the extrusion blocks act together on the sealing washer, enabling it to deform evenly when being extruded, forming a more stable and durable sealing layer. This not only improves the durability of the sealing washer but also ensures the sealing reliability under long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2 It is a schematic diagram of the joint body structure of the present utility model.

[0020] Figure 3 It is a schematic diagram of the extrusion blocks and the sealing washer structure of the present utility model.

[0021] Figure 4 It is a schematic diagram of the bottom structure of the movable ring of the present utility model.

[0022] Reference numerals: 1, joint body; 2, protective cover; 3, movable ring; 31, annular inclined surface; 32, groove; 4, extrusion block; 5, sealing gasket; 6, retaining ring; 7, combined gasket; 8, fixing ring. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] The exhaust pressure measuring joint has a joint body 1 and a protective cover 2;

[0025] As Figures 1 to 4 shown, a protective cover 2 is threadedly connected to the outside of the joint body 1, a movable ring 3 is slidably connected to the outside of the joint body 1, an annular inclined surface 31 is provided at the bottom of the movable ring 3, extrusion blocks 4 are equidistantly embedded at the bottom of the movable ring 3, the surface of the extrusion block 4 is inclined, the surface of the extrusion block 4 fits with the annular inclined surface 31, one side of the extrusion block 4 extends upward in a curved shape, and a sealing gasket 5 is provided between the movable ring 3 and the extrusion block 4;

[0026] Before being connected to the exhaust system, the joint body 1 and the protective cover 2 are kept in a closed state by threaded connection. The movable ring 3 is located outside the joint body 1, the surface of the embedded extrusion block 4 on it fits with the annular inclined surface 31, and at the same time, a sealing gasket 5 is provided between the movable ring 3 and the extrusion block 4 to ensure basic sealing;

[0027] During the connection process, first remove the protective cover 2 to expose the threaded part of the joint body 1, prepare to connect to the exhaust system, screw the threaded part of the joint body 1 into the corresponding interface of the exhaust system. As the thread is gradually tightened, the joint body 1 will push the movable ring 3 to slide along its outside;

[0028] The sliding of the movable ring 3 guides the movement of the extrusion block 4 through the annular inclined surface 31 at its bottom. The surface of the extrusion block 4 is inclined and fits closely with the annular inclined surface 31. Therefore, as the movable ring 3 slides, the extrusion blocks 4 will approach each other and exert extrusion on the sealing gasket 5. This extrusion effect causes the sealing gasket 5 to deform and fit more tightly between the joint body 1 and the exhaust system interface, thereby enhancing the sealing effect.

[0029] As Figures 1 to 4 shown, the top edge of the extrusion block 4 is arranged in an arc-shaped bending shape towards the movable ring 3, which helps to enhance the extrusion effect and can also prevent the sealing gasket 5 from being extruded or disengaged from its original position during the extrusion process.

[0030] As Figures 1 to 4As shown, equidistant grooves 32 are provided at the bottom of the movable ring 3, and the extrusion blocks 4 are respectively slidably inserted into the corresponding grooves 32. The grooves 32 can limit the sliding direction of the extrusion blocks 4, making the movement of the extrusion blocks 4 more stable.

[0031] As Figures 1 to 4 shown, a retaining ring 6 is fixedly connected to the outer side of the joint body 1. The retaining ring 6 is arranged at the top of the movable ring 3. The retaining ring 6 limits the sliding area of the movable ring 3, preventing the movable ring 3 from being separated from the extrusion block 4 too much.

[0032] As Figures 1 to 4 shown, a combined washer 7 is sleeved on the joint body 1 below the movable ring 3, further enhancing the sealing performance when the other end of the joint is connected and preventing gas leakage.

[0033] As Figures 1 to 4 shown, anti-slip patterns are provided on the outer wall of the protective cover 2, facilitating the user to easily remove or install the protective cover 2 when needed.

[0034] As Figures 1 to 4 shown, the extrusion blocks 4 are arranged in an annular array along the outer side of the joint body 1, enabling each extrusion block 4 to be evenly stressed when being extruded by the movable ring 3, thereby achieving uniform extrusion and deformation of the sealing washer 5.

[0035] As Figures 1 to 4 shown, a fixing ring 8 is provided on the outer side of the joint body 1, facilitating the connection of the protective cover 2 to the joint body 1 through tools such as chains and ropes to prevent the protective cover 2 from being lost.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A venting pressure measuring joint, comprising: A connector body (1) and a protective cover (2), wherein the outer side of the connector body (1) is threadedly connected to the protective cover (2), characterized in that a movable ring (3) is slidably connected to the outer side of the connector body (1), the bottom of the movable ring (3) is provided with an annular inclined surface (31), and extrusion blocks (4) are equidistantly embedded in the bottom of the movable ring (3), the surface of the extrusion block (4) is inclined, the surface of the extrusion block (4) is in contact with the annular inclined surface (31), one side of the extrusion block (4) extends upward in a curved shape, and a sealing gasket (5) is provided between the movable ring (3) and the extrusion block (4).

2. The exhaust type pressure measuring joint according to claim 1, characterized in that: The top edge of the extrusion block (4) is arranged in an arc-shaped curved shape toward the movable ring (3).

3. The exhaust type pressure measuring joint according to claim 1, characterized in that: The bottom of the movable ring (3) is provided with grooves (32) at equal intervals, and the extrusion blocks (4) are respectively slidably embedded in the corresponding grooves (32).

4. The exhaust type pressure measuring joint according to claim 1, characterized in that: A retaining ring (6) is fixedly connected to the outside of the joint body (1), and the retaining ring (6) is arranged on the top of the movable ring (3).

5. The exhaust type pressure measuring joint according to claim 1, characterized in that: The joint body (1) is located below the movable ring (3) and is sleeved with a combined gasket (7).

6. The exhaust type pressure measuring joint according to claim 1, characterized in that: The outer wall of the protective cover (2) is provided with anti-slip patterns.

7. The exhaust type pressure measuring joint according to claim 1, characterized in that: The extrusion blocks (4) are arranged in a ring array along the outer side of the joint body (1).

8. The vented pressure measuring joint according to claim 1, characterized in that: A fixing ring (8) is provided on the outside of the joint body (1).

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