Pressure regulating mechanism for pressure switch testing

Abstract

The utility model discloses a pressure regulating mechanism for pressure switch test, including box body, control module and electrical interface module, the box body inside fixedly connected with the supporting plate no.

Description

Technical Field

[0001] This utility model relates to the field of pressure switch testing technology, and in particular to a pressure regulating mechanism for pressure switch testing. Background Technology

[0002] Over time, the internal mechanical components of a pressure switch may experience wear, weakened spring force, or poor electrical contact. These problems can cause changes in the operating parameters of the pressure switch, such as deviations in the actuation pressure value, affecting its normal operation. Therefore, it is necessary to detect these potential changes to ensure that the pressure switch can still operate accurately and reliably within the specified parameter range.

[0003] Chinese Patent Publication No. CN114397102A, published on April 26, 2022, discloses a pressure switch aging detection device, including a PLC control center and at least one detection platform located inside a detection box. Each detection platform has multiple sets of air supply components on its lower end face. Each air supply component includes an air supply valve, which is connected to a flow divider pipe, and a control valve is connected to the flow divider pipe. The upper end face of the detection platform is provided with a flow pipe, which connects the control valve and the pressure switch. A counting component is also provided on the flow pipe.

[0004] Existing pressure regulation mechanisms for pressure switch testing typically divide the housing into three chambers using two sets of support plates. The control module, electrical interface module, and pressure boosting module are correspondingly housed within these three chambers. In practice, the product under test is connected to the chamber corresponding to the electrical interface module. However, the position of the support plate in this chamber is relatively fixed and cannot be adjusted according to the product's height. The space utilization of the chamber corresponding to the electrical interface module could be further optimized. Therefore, there is an urgent need to propose a corresponding pressure regulation mechanism for pressure switch testing to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a pressure regulating mechanism for pressure switch testing in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pressure regulating mechanism for pressure switch testing includes a housing, a control module, and an electrical interface module. A first tray is fixedly connected inside the housing. A second tray and a lifting assembly for adjusting the height of the second tray are also integrated inside the housing. The inner cavity of the housing is divided into an upper cavity, a middle cavity, and a lower cavity by the first tray and the second tray. The control module and the electrical interface module are respectively integrated on the top of the first tray and the second tray.

[0008] Preferably, the inner surface of the box is slidably connected to a shield via an L-shaped groove, and the front end face of the box is fixedly engaged with the shield via a positioning part.

[0009] Preferably, the positioning part includes a positioning rod that is screwed into the inner surface wall of the box, and the open end of the positioning rod abuts against the outer surface wall of the shield.

[0010] Preferably, the L-shaped groove is lined with an elastic inner liner.

[0011] Preferably, the lifting assembly includes a vertical plate fixedly connected to the inner surface wall of the box, a sliding sleeve fixedly connected to the outer surface wall of the vertical plate, a locking rod screwed onto the outer surface wall of the sliding sleeve, and the open end of the locking rod abutting against the outer surface wall of the vertical plate.

[0012] Preferably, L-shaped mounting brackets are fixedly connected to both sides of the vertical end of the vertical plate, and the mounting brackets are fixedly connected to the inner surface wall of the box by screws.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, a vertically movable tray two moves the electrical interface module vertically until it is adjusted to a suitable height. Then, the locking rod is rotated to engage with the sliding sleeve. The sliding sleeve is positioned by the contact friction between the open end of the locking rod and the vertical plate. The product to be tested is placed on the tray two and connected to the electrical interface module through a wiring harness. The aging test of the product is achieved through the cooperation of the control module, the electrical interface module, and the pressure boosting module. This ensures the stable conduct of the pressure switch aging test while making reasonable use of the cavity space, thereby improving the applicability of the pressure regulating mechanism used for pressure switch testing.

[0015] 2. In this application, after the product under test is connected to the electrical interface module, the shield is pulled to fully engage with the housing. Then, the position of the shield is locked by the positioning rod. The shield can be stably mounted on the front side of the connection area between the product and the electrical interface module, thus protecting the connection area and further improving the stability of the pressure regulating mechanism used for pressure switch testing. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of a shield structure according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of the box structure provided according to an embodiment of the present utility model is shown;

[0019] Figure 4 A schematic diagram of a tray structure according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Housing; 101. Upper cavity; 102. Middle cavity; 103. Lower cavity; 2. Support plate one; 3. Support plate two; 4. Vertical plate; 5. Control module; 6. Electrical interface module; 7. Shield; 8. Positioning rod; 9. Elastic liner; 10. Sliding sleeve; 11. Locking rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A pressure regulating mechanism for pressure switch testing includes a housing 1, a control module 5, and an electrical interface module 6. A first tray 2 is fixedly connected inside the housing 1. The housing 1 also integrates a second tray 3 and a lifting component for adjusting the height of the second tray 3. The inner cavity of the housing 1 is divided into an upper cavity 101, a middle cavity 102, and a lower cavity 103 by the first tray 2 and the second tray 3. The control module 5 and the electrical interface module 6 are respectively integrated on the top of the first tray 2 and the second tray 3.

[0025] The vertically moving tray 2 3 drives the electrical interface module 6 to move vertically until the electrical interface module 6 is adjusted to a suitable height. Then, the locking rod 11 is rotated to engage with the sliding sleeve 10. The sliding sleeve 10 is positioned by the contact friction between the open end of the locking rod 11 and the vertical plate 4. The product to be tested is placed on the tray 2 3 and connected to the electrical interface module 6 through a wiring harness. The aging test of the product is realized through the cooperation of the control module 5, the electrical interface module 6 and the pressure boosting module. This ensures the stable performance of the pressure switch aging test and makes reasonable use of the space in the cavity 102, thereby improving the applicability of the pressure regulating mechanism used for pressure switch testing.

[0026] Specifically, such as Figure 2 and Figure 4As shown, a shield 7 is slidably connected to the inner wall of the housing 1 via an L-shaped groove, and the front end of the housing 1 is fixedly engaged with the shield 7 via a positioning part. The positioning part includes a positioning rod 8 that is screwed onto the inner wall of the housing 1, and the open end of the positioning rod 8 abuts against the outer wall of the shield 7. After the product under test is connected to the electrical interface module 6, the shield 7 is pulled to fully engage with the housing 1. Then, the position of the shield 7 is locked by the positioning rod 8. The shield 7 can be stably mounted on the front side of the connection area between the product and the electrical interface module 6, realizing the protection of the connection area, thereby further improving the stability of the pressure regulating mechanism used for pressure switch testing.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the L-shaped groove is padded with an elastic liner 9, which provides a damping effect for the shield 7, so that the shield 7 does not need to be positioned by the positioning rod 8 when it is opened. The lifting assembly includes a vertical plate 4 fixedly connected to the inner wall of the box 1. The outer wall of the vertical plate 4 is slidably connected to a sliding sleeve 10 fixedly connected to the support plate 2 3. The outer wall of the sliding sleeve 10 is screwed with a locking rod 11, and the open end of the locking rod 11 abuts against the outer wall of the vertical plate 4. After the electrical interface module 6 is adjusted to a suitable height, the locking rod 11 is rotated to screw it into the sliding sleeve 10. The sliding sleeve 10 is positioned by the contact friction between the open end of the locking rod 11 and the vertical plate 4. Both sides of the vertical end of the vertical plate 4 are fixedly connected to L-shaped mounting brackets. The mounting brackets are fixedly connected to the inner wall of the box 1 by screws, ensuring the ease of assembly and disassembly of the vertical plate 4 and the support plate 2 3 from the box 1.

[0028] Working principle: The vertically moving tray 3 drives the electrical interface module 6 to move vertically until the electrical interface module 6 is adjusted to a suitable height. Then, the locking rod 11 is rotated to engage with the sliding sleeve 10. The sliding sleeve 10 is positioned by the contact friction between the open end of the locking rod 11 and the vertical plate 4. The product to be tested is placed on the tray 3 and connected to the electrical interface module 6 through a wiring harness. The aging test of the product is achieved through the cooperation of the control module 5, the electrical interface module 6 and the pressure boosting module. This ensures the stable performance of the pressure switch aging test and makes reasonable use of the space in the cavity 102, thereby improving the applicability of the pressure regulating mechanism used for pressure switch testing. After connecting the product to be tested with the electrical interface module 6, the shield 7 is pulled to fully engage with the housing 1. Then, the position of the shield 7 is locked by the positioning rod 8. The shield 7 can be stably installed on the front side of the connection area between the product and the electrical interface module 6 to protect the connection area, thereby further improving the stability of the pressure regulating mechanism used for pressure switch testing.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressure regulating mechanism for pressure switch testing, comprising a box (1), a control module (5) and an electrical interface module (6), characterized in that, The box (1) is fixedly connected to a tray (2). The box (1) also integrates a tray (3) and a lifting assembly for adjusting the height of the tray (3). The inner cavity of the box (1) is divided into an upper cavity (101), a middle cavity (102) and a lower cavity (103) by the tray (2) and the tray (3). The control module (5) and the electrical interface module (6) are respectively integrated on the top of the tray (2) and the tray (3).

2. A pressure regulating mechanism for pressure switch testing according to claim 1, wherein, The inner wall of the box (1) is slidably connected to a shield (7) through an L-shaped groove, and the front end of the box (1) is fixedly engaged with the shield (7) through a positioning part.

3. A pressure regulating mechanism for pressure switch testing according to claim 2, wherein, The positioning part includes a positioning rod (8) that is screwed into the inner wall of the housing (1), and the open end of the positioning rod (8) abuts against the outer wall of the shield (7).

4. A pressure regulating mechanism for pressure switch testing according to claim 3, wherein, The L-shaped groove is lined with an elastic inner liner (9).

5. A pressure regulating mechanism for pressure switch testing according to claim 4, wherein, The lifting assembly includes a vertical plate (4) fixedly connected to the inner wall of the box (1), a sliding sleeve (10) fixedly connected to the support plate (3) is slidably connected to the outer wall of the vertical plate (4), a locking rod (11) is screwed onto the outer wall of the sliding sleeve (10), and the open end of the locking rod (11) abuts against the outer wall of the vertical plate (4).

6. A pressure regulating mechanism for pressure switch testing according to claim 5, wherein, Both sides of the vertical end of the vertical plate (4) are fixedly connected to L-shaped mounting brackets, which are fixedly connected to the inner wall of the box (1) by screws.

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