A valve island for air tightness tester with dustproof interface

Abstract

The utility model discloses an airtightness detector valve island with dustproof interface, including a manifold, a fixed platform is provided on the upper end surface of the manifold, and the fixed platform and the manifold are integrally formed by injection molding, an air outlet pipe joint is provided on the upper end of the fixed platform, and at least eight air outlet pipe joints are provided, a dustproof box is installed on the outside of the fixed platform, and the dustproof box is plugged and matched with the fixed platform, a slot is provided in the inner wall of the dustproof box, a movable block is installed on one side of the inside, and the movable block and the slot are limited by sliding, positioning blocks are installed in the inner cavities on both sides of the fixed platform, and the positioning blocks and the fixed platform are limited by sliding, a supporting spring is installed between the inner cavity of the fixed platform and the positioning block, and the two ends of the supporting spring are respectively fixed to the fixed platform and the positioning block, in this way, the problem of reduced detection accuracy and airtightness due to dust entering during use of the valve island is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve islands, in particular to a valve island for air tightness detectors with dustproof interfaces. Background Art

[0002] The valve island of the air tightness tester is an indispensable and important component in the field of industrial automation. It is mainly used to achieve precise control and efficient operation of the air tightness test system. As a modular device that integrates multiple pneumatic valves and control elements, the valve island greatly simplifies the gas circuit system and improves production efficiency through centralized control and decentralized execution. It can accurately control the flow and pressure of the gas according to the detection requirements, and realize accurate and rapid detection of the air tightness of the tested parts. At the same time, the valve island is also highly flexible and scalable, and can be customized and combined according to different detection scenarios and process requirements.

[0003] For example, the Chinese authorized patent "A new type of multifunctional integrated valve island module for air tightness tester" with announcement number CN216050542U includes a solenoid valve installed on the main body, one end of the main body is connected to a connector for connecting the air pipe by bolts, the other end of the main body is plugged with a pressure sensor component for sensing internal pressure, one side of the main body is plugged with a vacuum generating component that can convert internal positive and negative pressures, and the upper surface of the main body is connected to a gas tank that can temporarily store the test gas by bolts. The multifunctional integrated valve island module of the new type of air tightness tester can adjust different detection paths for detection according to different detection conditions through the setting of multiple solenoid valves and gas transmission channels, so that the component integrates multiple detection methods.

[0004] Although the above-mentioned existing technologies can realize the integration and control of multiple electric control valves, most of their joints are not equipped with dustproof mechanisms. Dust adheres to the valve island interface, which may hinder the smooth flow of gas and cause inaccurate test results of the air tightness tester. Moreover, these particles may scratch the sealing surface of the valve island interface during gas flow, resulting in reduced sealing performance and even damage to the interface. Therefore, it does not meet existing needs. In this regard, we propose an air tightness tester valve island with dustproof interface. Utility Model Content

[0005] The utility model aims to provide a valve island for air tightness tester with dust-proof interface, so as to solve the problem in the background art that the valve island is prone to dust intrusion during use, resulting in reduced detection accuracy and air tightness.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air tightness tester valve island with a dustproof interface, comprising a manifold, a fixed platform is provided on the upper end surface of the manifold, and the fixed platform and the manifold are integrally formed by injection molding, an air outlet pipe joint is provided on the upper end of the fixed platform, and at least eight air outlet pipe joints are provided, a dustproof box is installed on the outside of the fixed platform, and the dustproof box is plugged into and matched with the fixed platform, a slot is provided in the inner wall of the dustproof box, a movable block is installed on one side of the inside, and the movable block and the slot are limited in sliding, positioning blocks are installed in the inner cavities on both sides of the fixed platform, and the positioning blocks and the fixed platform are limited in sliding, a support spring is installed between the inner cavity of the fixed platform and the positioning block, and the two ends of the support spring are respectively fixed to the fixed platform and the positioning block.

[0007] Preferably, the upper end of the dustproof box is provided with a plug interface with the same number as the air outlet pipe joints, a rotating seat is provided on one side of the lower end of the plug interface, and the upper end of the rotating seat is fixed to the dustproof box, a sealing plate is installed on one side of the rotating seat, the sealing plate is connected to the rotating seat through a connecting shaft, and the sealing plate is located below the plug interface, and a torsion spring is installed on the outside of the connecting shaft.

[0008] Preferably, a magnet block is provided on the other side of the lower end of the plug interface, and the magnet block is adhered and fixed to the dustproof box, and an iron sheet is fixedly provided on one side of the upper end surface of the sealing plate, and the iron sheet forms adsorption when in contact with the magnet block.

[0009] Preferably, a fixing plate is provided at the middle position inside the dustproof box, and the fixing plate is fixed to the dustproof box, and a rubber ring is provided at the position of the fixing plate corresponding to the air outlet pipe joint, the inner hole diameter of the rubber ring is smaller than the plug interface and the air outlet pipe joint, and the rubber ring is recessed downward.

[0010] Preferably, solenoid valves are installed at the front and rear of the upper end surface of the busbar, and a power interface is provided at the front side of the upper end surface of the busbar.

[0011] Preferably, the space formed by the sealing plate and the rubber ring is an independent dustproof cavity.

[0012] Preferably, the upper end of the positioning block is in an inclined structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with an external dust box installed with an air outlet pipe joint to protect the entire interface module, and a flexible assembly structure is also adopted in the installation method. During installation, it is only necessary to align the dust box with the upper part of the fixed platform and press downward. When the inner wall of the dust box contacts the inclined surface of the positioning block, it will be squeezed into the interior of the fixed platform, thereby facilitating the descent of the dust box. When the dust box and the fixed platform are fully inserted into the interface, the slot provides an extension space for the positioning block, and the positioning block is squeezed by the support spring to enter the interior of the slot, thereby fixing the fixed platform and the dust box. When separating the two, it is only necessary to press the movable block synchronously from both sides, one end of which can push the positioning block to move toward the direction of the fixed platform until it is separated from the slot. At this time, the user can pull the dust box upward to separate the two. The structure is highly flexible and easy to operate, and can effectively prevent dust from contacting the interface module.

[0015] 2. The utility model is provided with a sealing plate. Under normal circumstances, the iron sheet at one end of the sealing plate is attracted to the magnet block on one side of the lower end of the plug-in interface to form a seal between the sealing plate and the plug-in interface. When the air pipe needs to be plugged in, the lower end of the air pipe is directly pressed against the plug-in interface to separate the iron sheet at one end of the sealing plate from the magnet block, thereby opening the plug-in interface to facilitate the air pipe to extend inward until it is connected to the air outlet pipe joint. After the inspection work is completed and the air outlet pipe is taken out, the sealing plate is reset upward under the action of the torsion spring outside the rotating shaft between the sealing plate and the rotating seat until the iron sheet contacts the magnet block to form a closure for the plug-in interface. This structure can independently adjust the plug-in interface to ensure that the corresponding air outlet pipe joint is in a sealed state when not in use, thereby further preventing dust from entering.

[0016] 3. The utility model provides a fixing plate in the dustproof box, and a rubber ring is provided at the position of the fixing plate corresponding to the air outlet pipe joint. Since the diameter of the rubber ring is smaller than the plug-in interface and the air outlet pipe joint, and its structure is concave downward, the rubber ring can be squeezed when the air pipe joint enters. Although the air pipe joint can pass through under the action of elasticity, the inner wall of the rubber ring can wrap the outer wall of the air pipe joint, thereby avoiding the formation of a gap between the air pipe joint and the surroundings, and avoiding the entry of dust during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the dustproof box and the fixing platform of the utility model;

[0019] Figure 3 For the utility model Figure 2 A partial enlarged view of the middle A area;

[0020] Figure 4This is a schematic diagram of the connection structure between the sealing plate and the rotating seat of the utility model;

[0021] Figure 5 For the utility model Figure 2 A partial enlarged view of area B in the middle.

[0022] In the figure: 1. manifold; 2. fixing table; 3. outlet pipe joint; 4. solenoid valve; 5. power interface; 6. dust box; 7. plug interface; 8. sealing plate; 9. movable block; 10. rotating seat; 11. fixing plate; 12. rubber ring; 13. slot; 14. positioning block; 15. supporting spring; 16. connecting shaft; 17. torsion spring; 18. magnet block; 19. iron sheet. DETAILED DESCRIPTION

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

[0024] See also Figure 1-5 The utility model provides an embodiment: an air tightness detector valve island with dust-proof interface, including a manifold 1, a fixed platform 2 is provided on the upper end surface of the manifold 1, and the fixed platform 2 and the manifold 1 are integrally formed by injection molding, an air outlet pipe joint 3 is provided on the upper end of the fixed platform 2, and at least eight air outlet pipe joints 3 are provided, a dust box 6 is installed on the outside of the fixed platform 2, and the dust box 6 is plugged with the fixed platform 2, a slot 13 is provided in the inner wall of the dust box 6, a movable block 9 is installed on one side of the inner wall, and the movable block 9 and the slot 13 are slidably limited, positioning blocks 14 are installed in the inner cavities on both sides of the fixed platform 2, and the positioning blocks 14 and the fixed platform 2 are slidably limited, a support spring 15 is installed between the inner cavity of the fixed platform 2 and the positioning block 14, and the two ends of the support spring 15 are respectively fixed to the fixed platform 2 and the positioning block 14.

[0025] During installation, align the dust box 6 with the top of the fixed platform 2 and press downward. When the inner wall of the dust box 6 contacts the inclined surface of the positioning block 14, it will be squeezed into the interior of the fixed platform 2, thereby facilitating the descent of the dust box 6. When the dust box 6 is fully plugged into the fixed platform 2, the slot 13 provides extension space for the positioning block 14, and cooperates with the support spring 15 to squeeze the positioning block 14 so that it enters the interior of the slot 13, thereby fixing the fixed platform 2 and the dust box 6. When separating the two, it is necessary to press the movable block 9 synchronously from both sides. One end of the movable block 9 can push the positioning block 14 to move toward the direction of the fixed platform 2 until it is separated from the slot 13. At this time, the user can pull the dust box 6 upwards to separate the two.

[0026] See also Figure 1 , Figure 2 and Figure 4 The upper end of the dustproof box 6 is provided with a plug interface 7 with the same number as the air outlet pipe joint 3, a rotating seat 10 is provided on one side of the lower end of the plug interface 7, and the upper end of the rotating seat 10 is fixed to the dustproof box 6, and a sealing plate 8 is installed on one side of the rotating seat 10. The sealing plate 8 is connected to the rotating seat 10 through a connecting shaft 16, and the sealing plate 8 is located below the plug interface 7. A torsion spring 17 is installed on the outside of the connecting shaft 16. This structure can independently adjust the plug interface 7 to ensure that the corresponding air outlet pipe joint 3 is in a sealed state when not in use, thereby further preventing dust from entering.

[0027] See also Figure 5 A magnet block 18 is provided on the other side of the lower end of the plug interface 7, and the magnet block 18 is adhered and fixed to the dustproof box 6. An iron sheet 19 is fixedly provided on one side of the upper end surface of the sealing plate 8, and the iron sheet 19 is adsorbed when in contact with the magnet block 18, thereby closing the plug interface 7.

[0028] See also Figure 2 A fixing plate 11 is provided at the middle position inside the dustproof box 6, and the fixing plate 11 is fixed to the dustproof box 6. A rubber ring 12 is provided at the position of the fixing plate 11 corresponding to the air outlet pipe joint 3. The inner hole diameter of the rubber ring 12 is smaller than the plug interface 7 and the air outlet pipe joint 3, and the rubber ring 12 is recessed downward to avoid forming a gap between the air pipe joint and the surroundings, thereby preventing dust from entering during use.

[0029] See also Figure 1 Solenoid valves 4 are installed at the front and rear of the upper end surface of the manifold 1, and a power interface 5 is arranged at the front side of the upper end surface of the manifold 1.

[0030] See also Figure 2 The space formed by the sealing plate 8 and the rubber ring 12 is an independent dustproof cavity.

[0031] See also Figure 3 , the upper end of the positioning block 14 is in an inclined structure.

[0032] Working principle: When in use, under normal circumstances, the iron sheet 19 at one end of the sealing plate 8 is adsorbed with the magnet block 18 on one side of the lower end of the plug-in port 7 to form a seal between the sealing plate 8 and the plug-in port 7. When the trachea needs to be plugged in, the lower end of the trachea is directly pressed against the plug-in port 7 to separate the iron sheet 19 at one end of the sealing plate 8 from the magnet block 18, thereby opening the plug-in port 7 to facilitate the extension of the trachea inward. When the trachea joint enters, the rubber ring 12 is squeezed. Although the trachea joint can pass through under the action of elasticity, the inner wall of the rubber ring 12 can wrap the outer wall of the trachea joint, thereby avoiding the formation of a gap between the trachea joint and the surrounding area, avoiding the entry of dust during use, and finally connecting with the air outlet pipe joint 3. After the inspection work is completed and the trachea joint is taken out, the sealing plate 8 is reset upward under the action of the torsion spring 17 outside the rotating shaft between the sealing plate 8 and the rotating seat 10 until the iron sheet 19 contacts the magnet block 18 to form a closure on the plug-in port 7.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A dust-proof interface airtightness tester valve island, comprising a manifold (1), characterized in that: The upper end surface of the busbar (1) is provided with a fixed platform (2), and the fixed platform (2) and the busbar (1) are integrally formed by injection molding. The upper end of the fixed platform (2) is provided with an air outlet pipe joint (3), and at least eight air outlet pipe joints (3) are provided. A dust box (6) is installed on the outside of the fixed platform (2), and the dust box (6) and the fixed platform (2) are plugged together. A slot (13) is provided in the inner wall of the dust box (6), and a movable block (9) is installed on one side of the inner wall, and the movable block (9) and the slot (13) are slidably limited. Positioning blocks (14) are installed in the inner cavities on both sides of the fixed platform (2), and the positioning blocks (14) and the fixed platform (2) are slidably limited. A support spring (15) is installed between the inner cavity of the fixed platform (2) and the positioning block (14), and the two ends of the support spring (15) are respectively fixed to the fixed platform (2) and the positioning block (14).

2. The air tightness tester valve island with dust-proof interface according to claim 1, characterized in that: The upper end of the dustproof box (6) is provided with a plug interface (7) having the same number as the air outlet pipe joints (3); a rotating seat (10) is provided on one side of the lower end of the plug interface (7); the upper end of the rotating seat (10) is fixed to the dustproof box (6); a sealing plate (8) is installed on one side of the rotating seat (10); the sealing plate (8) and the rotating seat (10) are connected via a connecting shaft (16); the sealing plate (8) is located below the plug interface (7); and a torsion spring (17) is installed on the outside of the connecting shaft (16).

3. The air tightness tester valve island with dust-proof interface according to claim 2, characterized in that: A magnet block (18) is provided on the other side of the lower end of the plug interface (7), and the magnet block (18) is bonded and fixed to the dustproof box (6); an iron sheet (19) is fixedly provided on one side of the upper end surface of the sealing plate (8), and the iron sheet (19) and the magnet block (18) are in contact to form adsorption.

4. The air tightness tester valve island with dust-proof interface according to claim 2, characterized in that: A fixing plate (11) is arranged at a middle position inside the dustproof box (6), and the fixing plate (11) is fixed to the dustproof box (6). A rubber ring (12) is arranged at a position of the fixing plate (11) corresponding to the air outlet pipe joint (3), the inner hole diameter of the rubber ring (12) is smaller than the plug interface (7) and the air outlet pipe joint (3), and the rubber ring (12) is concave downward.

5. The air tightness tester valve island with dust-proof interface according to claim 1, characterized in that: Solenoid valves (4) are installed at the front and rear of the upper end surface of the busbar (1), and a power supply interface (5) is provided at the front side of the upper end surface of the busbar (1).

6. The air tightness tester valve island with dust-proof interface according to claim 4, characterized in that: The space formed by the sealing plate (8) and the rubber ring (12) is an independent dust-proof cavity.

7. The air tightness tester valve island with dust-proof interface according to claim 1, characterized in that: The upper end of the positioning block (14) is in an inclined structure.

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