A thin pressure gauge

Abstract

The utility model discloses a kind of thin pressure gauges, including upper cover, lower cover and support integrally formed in the side end of lower cover, upper cover, lower cover and support cooperation form installation cavity, electric control module is arranged in installation cavity, display module and button module are arranged in the front side or rear side of installation cavity, air inlet channel is arranged on the support, sensor module is arranged in installation cavity, sensor module is equipped with sensor probe that is sealed and inserted into air inlet channel, the lower cover or lower cover and upper cover cooperation form wiring jack, display module, button module, sensor module are electrically connected with electric control module, support and lower cover integrally formed design can avoid the assembly problem caused by improper cooperation between parts, while can better optimize space layout, make overall structure more compact, reduce the assembly gap between support and upper and lower cover, improve the overall rigidity and stability of product.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure gauges, and in particular to a thin pressure gauge. Background Technology

[0002] Pressure gauges are widely used in pumps and compressors that require precise pressure regulation, industrial pneumatic or hydraulic equipment, pressure vessels, pneumatic components, vacuum breaker valves, and automated equipment in machine tools and machinery manufacturing.

[0003] Currently, most commercially available pressure gauges are bulky and cannot be installed in narrow and complex environments. They also only display pressure values ​​and lack the ability to control pressure levels or monitor operation, resulting in low practicality. To address this, engineers have developed a precision, thin digital pressure gauge (authorization number CN211824855U). This gauge includes an air inlet module, a sensor function board, a connecting cable, a main board, an LED display board, and a housing assembly. The air inlet module is mounted on the housing assembly, the sensor function board is mounted on the air inlet module, the connecting cable is mounted on the main board and connected to the air inlet module, the main board is installed inside the housing assembly and connected to the sensor function board, and the LED display board is connected to the main board and placed outside the housing assembly. A sensor probe is located at the rear of the sensor function board, and the sensor probe contains a full-bridge circuit of four Wheatstone piezors. This invention features a simple structure, integrating pressure measurement, display, and control. It boasts advantages such as small size, low power consumption, and long service life, effectively improving pressure control accuracy and allowing for intuitive observation of pressure changes. It is suitable for installation in narrow and complex industrial environments.

[0004] However, the existing pressure gauges still have the following drawbacks: 1. The lower cover and the bracket are both designed separately, which not only makes assembly complicated, but also causes not only processing errors but also assembly errors, resulting in low overall product rigidity and connection stability; 2. Since the air inlet is set in the same direction as the overall length of the pressure gauge, it is not convenient for use in environments with limited height. Therefore, the existing pressure gauges need to be improved. Summary of the Invention

[0005] The purpose of this utility model is to provide a thin pressure gauge with an integrated design of the bracket and the lower cover, which can avoid assembly problems caused by improper fit between parts, while also optimizing the spatial layout, making the overall structure more compact, reducing the assembly gap between the bracket and the upper and lower covers, and improving the overall rigidity and stability of the product.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a thin pressure gauge, including an upper cover, a lower cover, and a bracket integrally formed on the side of the lower cover. The upper cover, lower cover, and bracket cooperate to form an installation cavity. An electronic control module is disposed in the installation cavity. A display module and a button module are disposed on the front or rear side of the installation cavity. An air intake channel is disposed on the bracket. A sensor module is disposed in the installation cavity. The sensor module is provided with a sensor probe inserted into the air intake channel. A sealing structure for sealing the inner end of the air intake channel is provided in the installation cavity. A wiring socket is formed by the lower cover or the lower cover cooperating with the upper cover. The display module, button module, and sensor module are all electrically connected to the electronic control module.

[0007] Furthermore, the bracket includes a horizontal portion and a vertical portion arranged in an L-shape, and an air intake channel is provided on the horizontal portion and the vertical portion. One end of the air intake channel passes through the vertical portion, and the other end of the air intake channel passes through one side of the horizontal portion corresponding to the length direction of the lower cover.

[0008] Furthermore, a connecting portion is provided on the opening side formed by the horizontal portion and the vertical portion. One end of the connecting portion is connected to the vertical portion, and the other end of the connecting portion is connected to the horizontal portion. The air intake channel is formed inside the connecting portion.

[0009] Furthermore, the bracket is also provided with reinforcing ribs connecting the horizontal and vertical portions, and the reinforcing ribs extend to the connecting portion.

[0010] Furthermore, the lower cover is provided with a first limiting part and a second limiting part, which cooperate to form a slot with an upper opening. The sensor module includes a sensor circuit board inserted into the slot and a sensor unit electrically connected to the sensor circuit board.

[0011] Furthermore, the sealing structure includes a seal that is clamped between the bracket and the sensor module.

[0012] Furthermore, a wiring channel is provided on one side of the lower cover corresponding to the wiring socket, through which the electrical connection wire connected to the electronic control module is connected to the external solenoid valve.

[0013] Furthermore, the front side of the lateral portion is flush with the front side of the lower cover.

[0014] Furthermore, the lower cover and the upper cover are detachably fastened together as one unit.

[0015] Furthermore, the mounting cavity has a rear opening, and the display module and button module are located on the rear side of the mounting cavity.

[0016] In summary, this utility model has the following beneficial effects: 1. The thin pressure gauge of this utility model has an integrated design of bracket and lower cover, which can avoid assembly problems caused by improper fit between parts. At the same time, it can better optimize the spatial layout, make the overall structure more compact, reduce the assembly gap between bracket and upper and lower covers, and improve the overall rigidity and stability of the product. 2. The thin pressure gauge of this utility model has the air inlet of the air inlet channel located on the end face of the horizontal part, that is, on one side of the length direction of the lower cover, so that the thin pressure gauge can be installed in a space environment with limited height. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the right side of this utility model.

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] Figure 5 This is an exploded view of the present invention.

[0022] In the diagram: 10. Top cover; 20. Bottom cover; 21. First limiting part; 22. Second limiting part; 23. Wiring socket; 24. Wiring channel; 30. Bracket; 31. Horizontal part; 32. Vertical part; 33. Air intake channel; 34. Connecting part; 35. Reinforcing rib; 40. Electronic control module; 50. Display module; 60. Button module; 70. Sensor module; 71. Sensor circuit board; 72. Sensor unit; 721. Sensor probe; 80. Sealing structure. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] like Figures 1-5 As shown, a thin pressure gauge includes an upper cover 10, a lower cover 20, and a bracket 30 integrally formed on the side of the lower cover 20. The upper cover 10, the lower cover 20, and the bracket 30 cooperate to form a mounting cavity. An electronic control module 40 is disposed in the mounting cavity. A display module 50 and a button module 60 are disposed on the front or rear side of the mounting cavity. An air intake channel 33 is disposed on the bracket 30. A sensor module 70 is disposed in the mounting cavity. The sensor module 70 is provided with a sensor probe 721 inserted into the air intake channel 33. The air pressure in the air intake channel 33 is detected in real time by the sensor probe 721. A sealing structure 80 for sealing the inner end of the air intake channel 33 is provided in the mounting cavity. A wiring socket 23 is formed by the lower cover 20 or the lower cover 20 and the upper cover 10. The wiring socket 23 is electrically connected to an external power source. The display module 50, the button module 60, and the sensor module 70 are all electrically connected to the electronic control module 40.

[0027] The thin pressure gauge of this utility model integrates the bracket 30 and the lower cover 20 into one piece, which can avoid assembly problems caused by improper fit between parts. At the same time, it can better optimize the spatial layout, make the overall structure more compact, reduce the assembly gap between the bracket 30 and the upper and lower covers 20, and improve the overall rigidity and stability of the product.

[0028] In some embodiments, the bracket 30 includes an L-shaped horizontal portion 31 and a vertical portion 32. An air intake channel 33 is provided on the horizontal portion 31 and the vertical portion 32. One end of the air intake channel 33 extends through the vertical portion 32, and the other end extends through one side of the horizontal portion 31 corresponding to the length direction of the lower cover 20. That is, the inlet end of the air intake channel 33 is located on one side of the horizontal portion 31 corresponding to the length direction of the lower cover 20, and the outlet end of the air intake channel 33 is located on one side of the vertical portion 32 corresponding to the width direction of the lower cover 20. Furthermore, the front side of the horizontal portion 31 is flush with the front side of the lower cover 20.

[0029] The thin pressure gauge of this utility model has the air inlet of the air inlet channel 33 located on the end face of the horizontal part 31, that is, on one side of the length direction of the lower cover 20, so that the thin pressure gauge can be installed in a space environment with limited height.

[0030] In some embodiments, a connecting portion 34 is provided on the opening side formed by the horizontal portion 31 and the vertical portion 32. One end of the connecting portion 34 is connected to the vertical portion 32, and the other end of the connecting portion 34 is connected to the horizontal portion 31. The air intake channel 33 is formed in the connecting portion 34. The connecting portion 34 is a tubular structure and is provided on the opening side of the L-shaped structure formed by the horizontal portion 31 and the vertical portion 32. The connecting portion 34, the vertical portion 32 and the horizontal portion 31 are integrally injection molded.

[0031] In some embodiments, the bracket 30 is further provided with reinforcing ribs 35 connecting the horizontal portion 31 and the vertical portion 32. The reinforcing ribs 35 extend to the connecting portion 34. The plate-like structure of the horizontally arranged reinforcing ribs 35 in this application can enhance the strength and rigidity of the bracket 30 through the arrangement of the reinforcing ribs 35.

[0032] In some embodiments, the lower cover 20 is provided with a first limiting part 21 and a second limiting part 22, the first limiting part 21 and the second limiting part 22 cooperate to form a slot with an upper opening, and the sensor module 70 includes a sensor circuit board 71 inserted into the slot and a sensor unit 72 electrically connected to the sensor circuit board 71.

[0033] In some embodiments, the sealing structure 80 includes a sealing element that is clamped between the bracket 30 and the sensor module 70. Specifically, the bracket 30 is provided with a blind groove with a diameter larger than that of the air intake channel 33. The sealing element is in multiple sets and in multiple quantities. Specifically, in this application, there are 3 sealing elements that are clamped between the end face of the blind groove and the end face of the sensor module 70, thereby sealing the air outlet of the air intake channel 33.

[0034] In some embodiments, the lower cover 20 is further provided with a wiring channel 24 on one side corresponding to the wiring socket 23. The electrical connection line connected to the electronic control module 40 is connected to the external solenoid valve through the wiring channel 24. Through this setting, the purpose of controlling the solenoid valve by the pressure gauge is achieved.

[0035] Furthermore, the lower cover 20 and the upper cover 10 are detachably fastened together, the lower cover 20 is provided with multiple sets of fastening parts, and the upper cover 10 is provided with fastening grooves corresponding to the fastening parts.

[0036] In some embodiments, the mounting cavity has a rear opening, and the display module 50 and the button module 60 are located on the rear side of the mounting cavity.

[0037] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A thin pressure gauge, characterized in that: The device includes an upper cover (10), a lower cover (20), and a bracket (30) integrally formed on the side of the lower cover (20). The upper cover (10), the lower cover (20), and the bracket (30) cooperate to form an installation cavity. An electronic control module (40) is provided in the installation cavity. A display module (50) and a button module (60) are provided on the front or rear side of the installation cavity. An air intake channel (33) is provided on the bracket (30). A sensor module (70) is provided in the installation cavity. The sensor module (70) is provided with a sensor probe (721) inserted into the air intake channel (33). A sealing structure (80) for sealing the inner end of the air intake channel (33) is provided in the installation cavity. A wiring socket (23) is formed by the lower cover (20) or the lower cover (20) and the upper cover (10). The display module (50), the button module (60), and the sensor module (70) are all electrically connected to the electronic control module (40).

2. A thin pressure gauge according to claim 1, characterized in that: The bracket (30) includes a horizontal part (31) and a vertical part (32) arranged in an L shape. An air intake channel (33) is provided on the horizontal part (31) and the vertical part (32). One end of the air intake channel (33) passes through the vertical part (32), and the other end of the air intake channel (33) passes through one side of the horizontal part (31) corresponding to the length direction of the lower cover (20).

3. A thin pressure gauge according to claim 2, characterized in that: A connecting part (34) is provided on the opening side formed by the horizontal part (31) and the vertical part (32). One end of the connecting part (34) is connected to the vertical part (32), and the other end of the connecting part (34) is connected to the horizontal part (31). The air intake channel (33) is formed in the connecting part (34).

4. A thin pressure gauge according to claim 3, characterized in that: The bracket (30) is also provided with reinforcing ribs (35) connecting the horizontal part (31) and the vertical part (32), and the reinforcing ribs (35) extend to the connecting part (34).

5. A thin pressure gauge according to claim 1, characterized in that: The lower cover (20) is provided with a first limiting part (21) and a second limiting part (22). The first limiting part (21) and the second limiting part (22) cooperate to form a slot with an upper opening. The sensor module (70) includes a sensor circuit board (71) inserted into the slot and a sensor unit (72) electrically connected to the sensor circuit board (71).

6. A thin pressure gauge according to claim 5, characterized in that: The sealing structure (80) includes a seal that is clamped between the bracket (30) and the sensor module (70).

7. A thin pressure gauge according to any one of claims 1-6, characterized in that: The lower cover (20) is also provided with a wiring channel (24) on one side corresponding to the wiring socket (23), and the electrical connection line connected to the electronic control module (40) is connected to the external solenoid valve through the wiring channel (24).

8. A thin pressure gauge according to claim 2, characterized in that: The front side of the transverse portion (31) is flush with the front side of the lower cover (20).

9. A thin pressure gauge according to claim 1, characterized in that: The lower cover (20) and the upper cover (10) are detachably fastened together.

10. A thin pressure gauge according to claim 1, characterized in that: The mounting cavity has a rear opening, and the display module (50) and button module (60) are located on the rear side of the mounting cavity.

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