A valve body air tightness testing device

Abstract

The utility model discloses a valve body air tightness testing arrangement, including the bottom plate of suspension setting, the both sides of bottom plate are provided with support, and support is connected with transmission, and transmission can drive bottom plate to overturn predetermined angle, be provided with the detection box of horizontal movement on bottom plate, and the side opening of detection box is just opposite the cover plate, and the first clamp of placing valve body no.

Description

Technical Field

[0001] This utility model belongs to the field of airtightness testing technology and relates to a valve body airtightness testing device. Background Technology

[0002] Currently, the DV valve assembly line produces two types of valve bodies: valve body one with a floral crown and valve body two without. Before leaving the factory, valve body one and valve body two need to undergo flow rate and airtightness tests from different positions. Due to the structural differences between these two valve bodies, multiple sets of equipment are currently required for testing, and there is still a lack of an efficient, accurate, and integrated solution. Utility Model Content

[0003] The purpose of this invention is to provide a valve body airtightness testing device that can test two different valve bodies, thus solving the problems existing in the background art.

[0004] The objective of this utility model is achieved through the following technical solution: A valve body airtightness testing device includes a suspended base plate with supports on both sides. The supports are connected to a transmission device, which can rotate the base plate by a predetermined angle. A laterally movable test box is mounted on the base plate, with an opening on one side facing a cover plate. A first clamp for placing a valve body is mounted on the side of the cover plate facing the test box. The cover plate has several first air pipe connectors for connecting to the valve body on the first clamp. The test box can move to one side of the cover plate and seal with it, covering the first clamp and the valve body on it. A second clamp for positioning a valve body is mounted on the test box, which can fix the valve body to the test box. The test box has several second air pipe connectors for connecting to the valve body.

[0005] As a further improvement of one embodiment of the present invention, a linear slide rail is provided horizontally on the base plate, a slider is provided between the linear slide rail and the detection box, and a drive cylinder is fixedly provided on both sides of the detection box, with the piston end of the drive cylinder being fixedly connected to the cover plate.

[0006] As a further improvement of one embodiment of the present invention, the transmission device includes bearing seats distributed on the outside of the support, a central shaft fixedly connected to the support is provided on the bearing seats, a first synchronous pulley is provided on one of the central shafts, a drive motor is provided on the outside of the bearing seats, a second synchronous pulley is provided on the output shaft of the drive motor, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt; the predetermined angle range is 0°-180°.

[0007] As a further improvement of one embodiment of the present utility model, the first clamp includes a base plate fixedly connected to the cover plate, a support seat is provided on the base plate, the upper end of the support seat has an opening for placing a valve body, and a positioning seat is provided around the support seat to fix one end of the valve body.

[0008] As a further improvement of one embodiment of the present utility model, the second clamp includes a fixed seat, the valve body is disposed on the fixed seat and one end of which is connected to the inside of the detection box, a cylinder seat is disposed above the fixed seat, the cylinder seat is fixed to the detection box by a support rod, a cylinder is disposed on the cylinder seat, a pressure plate is disposed on the piston end of the cylinder, and the cylinder drives the pressure plate downward and presses it against the valve body.

[0009] As a further improvement of one embodiment of the present invention, a sealing ring is provided at the edge of the opening of the detection box. When the detection box moves to contact the cover plate, the sealing ring fits tightly with the cover plate, thereby achieving a sealed connection between the detection box and the cover plate.

[0010] The above technical solution has the following beneficial effects: by integrating two testing schemes into one testing device, flow rate and air tightness testing can be effectively carried out from different angles and orientations, and the DV valve assembly line can be optimized. Attached Figure Description

[0011] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0012] The structures, proportions, sizes, etc. shown in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0014] Figure 2 This is a top view diagram of the present invention.

[0015] Figure 3 This is a side view diagram provided for this utility model.

[0016] Figure 4 This is a partial three-dimensional schematic diagram of the present invention.

[0017] Figure 5 for Figure 4 A top-down view.

[0018] Figure 6 for Figure 5 A cross-sectional view along the AA direction.

[0019] In the picture: 1. Base plate; 11. Bracket; 12. Linear guide rail; 13. Drive cylinder; 21. Testing box; 22. Cover plate; 23. Sealing ring; 31. Valve body one; 32. Valve body two; 41. First clamp; 411. Substrate; 412. Support base; 413. Positioning seat; 42. Second clamp; 421. Fixture; 422. Cylinder seat; 423. Cylinder; 424. Pressure plate; 51. First endotracheal connector; 52. Second air tube connector; 61. Bearing housing; 62. First synchronizer pulley; 63. Drive motor; 64. Synchronous belt. Detailed Implementation

[0020] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] First embodiment, such as Figures 1-6As shown, a valve body airtightness testing device is designed to efficiently perform flow and airtightness testing on different types of valve bodies, optimizing the production process of DV valve assembly lines. The device includes a suspended base plate 1 with supports 11 on both sides. The supports 11 are connected to a transmission device, which can rotate the base plate 1 by a predetermined angle (range 0°-180°) to meet the testing requirements of valve bodies in different tilt positions.

[0022] A laterally movable detection box 21 is mounted on the base plate 1. One side of the detection box 21 is open, directly facing the cover plate 22. A first clamp 41 for placing a valve body 31 is mounted on the side of the cover plate 22 facing the detection box 21. Several first air pipe connectors 51 are mounted on the cover plate 22. One end of each first air pipe connector 51 is connected to an external air system via a pipe, and the other end can be sealed to the air port of the valve body 31 on the first clamp 41. A sealing ring 23 is provided at the edge of the opening of the detection box 21. When the detection box 21 moves to contact the cover plate 22, the sealing ring 23 fits tightly against the cover plate 22, achieving a sealed connection between the detection box 21 and the cover plate 22. Simultaneously, the first clamp 41 and the valve body 31 are completely covered, forming a detection space.

[0023] Specifically, a linear slide rail 12 is fixedly installed on the base plate 1 along the horizontal direction. A matching slider is installed between the linear slide rail 12 and the detection box 21. The slider is fixedly connected to the bottom of the detection box 21, so that the detection box 21 can slide stably along the linear slide rail 12 and ensure the movement accuracy. The test box 21 is also symmetrically fixed with drive cylinders 13 on both sides. The piston end of the drive cylinder 13 is fixedly connected to the cover plate 22 by bolts. When the piston of the drive cylinder 13 extends or retracts, it can drive the test box 21 to move synchronously, thereby realizing the sealing docking or separation between the test box 21 and the cover plate 22, ensuring the reliable formation of the sealed space during the test, and meeting the requirements of valve body airtightness test for structural stability and action accuracy.

[0024] The first clamp 41 includes a base plate 411 fixedly connected to the cover plate 22. A support seat 412 is provided on the base plate 411. The upper end of the support seat 412 has an opening for placing the valve body 31. A positioning seat 413 is provided around the support seat 412 to fix one end of the valve body 31.

[0025] In this design, the first clamp 41 includes a base plate 411 fixedly connected to the cover plate 22, and a support seat 412 is provided on the base plate 411. The opening at the upper end of the support seat 412 can be designed according to the shape of the valve body 31 to ensure that the valve body 31 fits stably after placement. A positioning seat 413 is provided around the support seat 412. The positioning seat 413 can adopt an elastic claw structure to position and fix the outer periphery or end face of one end of the valve body 31, preventing the valve body 31 from shifting during the test, ensuring the reliability of the sealing connection between the first air pipe connector 51 and the air port of the valve body 31, and meeting the structural requirements of airtightness testing.

[0026] In addition, the testing box 21 is equipped with a second clamp 42 for positioning the valve body 32, which can fix the valve body 32 on the testing box 21. The testing box 21 is equipped with a number of second air pipe connectors 52, which are sealed to the air ports of the valve body 32 and connected to the external air circuit system.

[0027] Specifically, the second clamp 42 includes a fixed base 421 that is fixedly connected to the outer wall of the test box 21. The top surface of the fixed base 421 can be provided with a matching positioning groove or positioning hole according to the shape of the valve body 32 to ensure that the valve body 32 is accurately positioned after placement. One end of the valve body 32 can communicate with the inside of the test box 21 through the through hole on the fixed base 421 to meet the airflow requirements.

[0028] A cylinder seat 422 is mounted above the fixed base 421, and the cylinder seat 422 is fixed to the detection box 21 by a support rod. A cylinder 423 is fixedly installed on the cylinder seat 422, and the piston end of the cylinder 423 is fixed to the pressure plate 424 by bolts. A rubber pad can be attached to the bottom surface of the pressure plate 424 to avoid damaging the valve body 32. When the cylinder 423 is vented and drives the piston to extend downward, the pressure plate 424 can be tightly pressed against the top of the valve body 32, so as to reliably fix the valve body 32 and ensure the stability of the detection process.

[0029] In this scheme, the transmission device includes bearing seats 61 symmetrically distributed on the outer sides of the two side supports 11. The bearing seats 61 can be made of cast steel or aluminum alloy. They are equipped with deep groove ball bearings or tapered roller bearings or similar bearings. The inner ring of the bearing is fitted with a central shaft that is connected to or welded to the side wall of the support 11 by a key, so as to ensure that the central shaft can rotate synchronously with the support 11. A first synchronous pulley 62 is fixedly sleeved on the end of the central shaft extending from the bearing housing 61 on one side. A drive motor 63 is fixedly mounted on the outside of the bearing housing 61 via a motor mounting bracket. The drive motor 63 can be a servo motor or a stepper motor, and a second synchronous pulley adapted to the first synchronous pulley 62 is fixedly sleeved on the end of its output shaft. The first synchronous pulley 62 and the second synchronous pulley are connected by a synchronous belt 64. The synchronous belt 64 can be a rubber synchronous belt or a polyurethane synchronous belt. The drive motor 63 drives the second synchronous pulley to rotate, and the power is transmitted to the first synchronous pulley 62 through the synchronous belt 64, thereby driving the central shaft and the bracket 11 to rotate, realizing the flipping action of the base plate 1 and meeting the detection requirements of different angles.

[0030] The valve body airtightness testing device provided by this utility model is a component of the solenoid valve assembly equipment. It is closely integrated with other parts of the solenoid valve assembly equipment and shares the control system, power supply system, air supply system, vacuum system, etc. of the solenoid valve assembly equipment. The coordinated operation of each link is realized through a unified interface and operation instructions.

[0031] This invention integrates two testing schemes for valve body 1 (31) and valve body 2 (32) into the same testing device, enabling flow rate and airtightness testing at different angles and orientations without changing equipment. This significantly improves testing efficiency, reduces production input costs, and effectively optimizes the overall operation process of the DV valve assembly line.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A valve body airtightness testing device, characterized in that, The device includes a suspended base plate with supports on both sides connected to a transmission device that can rotate the base plate by a predetermined angle. A laterally movable testing box is mounted on the base plate, with an opening on one side facing a cover plate. A first clamp for placing a valve body is mounted on the side of the cover plate facing the testing box. Several first air pipe connectors are mounted on the cover plate for connecting to the valve body on the first clamp. The testing box can move to one side of the cover plate and seal with it, covering the first clamp and the valve body on it. A second clamp for positioning a second valve body is mounted on the testing box, fixing the valve body to the testing box. Several second air pipe connectors are mounted on the testing box for connecting to the valve body.

2. The valve body airtightness testing device according to claim 1, characterized in that, A linear slide rail is horizontally arranged on the base plate, and a slider is provided between the linear slide rail and the detection box. A drive cylinder is fixedly arranged on both sides of the detection box, and the piston end of the drive cylinder is fixedly connected to the cover plate.

3. The valve body airtightness testing device according to claim 1, characterized in that, The transmission device includes bearing seats distributed on the outside of the support, a central shaft fixedly connected to the support is provided on the bearing seats, a first synchronous pulley is provided on one of the central shafts, a drive motor is provided on the outside of the bearing seats, a second synchronous pulley is provided on the output shaft of the drive motor, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt; the predetermined angle range is 0°-180°.

4. The valve body airtightness testing device according to claim 1, characterized in that, The first clamp includes a base plate fixedly connected to the cover plate, a support seat is provided on the base plate, the upper end of the support seat has an opening for placing the valve body, and a positioning seat is provided around the support seat to fix one end of the valve body.

5. The valve body airtightness testing device according to claim 1, characterized in that, The second fixture includes a fixed base, the valve body is mounted on the fixed base and one end of it is connected to the inside of the detection box, a cylinder seat is mounted above the fixed base, the cylinder seat is fixed to the detection box by a support rod, a cylinder is mounted on the cylinder seat, a pressure plate is mounted on the piston end of the cylinder, and the cylinder drives the pressure plate downward and presses it against the valve body.

6. The valve body airtightness testing device according to claim 1, characterized in that, The opening edge of the testing box is provided with a sealing ring. When the testing box moves to contact the cover plate, the sealing ring fits tightly with the cover plate, realizing a sealed connection between the testing box and the cover plate.

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