Fixing structure for air pressure sensor of air pump

By designing a mounting cavity and a sensor retaining ring on the air pump, the problem of convenient disassembly and assembly of the air pump pressure sensor is solved, improving assembly efficiency, reducing production costs, and enabling convenient maintenance.

CN223676468UActive Publication Date: 2025-12-16SHENZHEN FREEMAN IT LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520134125.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-12-16
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

The existing air pumps have a separate pump head that takes up a lot of space, has many connecting parts, high production costs, and is inconvenient to disassemble and assemble. The way the air pressure sensor is connected to the pump head is not conducive to improving assembly efficiency and reducing costs.

Method used

The device employs a mounting cavity and a sensor retainer spring for fixing. The sensor retainer spring includes a bent part and an elastic arm. It restricts the sensor plate through an insertion port and a limiting hole. Combined with the design of a sealing ring and a limiting port, it enables convenient installation and removal of the sensor plate.

Benefits of technology

It enables convenient assembly and disassembly of sensor boards, improves assembly efficiency, reduces production costs, facilitates maintenance and replacement, and enhances ease of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223676468U_ABST
    Figure CN223676468U_ABST
Patent Text Reader

Abstract

The utility model discloses a fixing structure for an air pressure sensor of an air pump, which is used for fixing a sensor plate on the air pump. Comprising a mounting part and a sensor clamp spring, the mounting part is arranged on the air pump, the mounting part is provided with a mounting cavity, the mounting cavity is communicated with the end face of the mounting part to form an end face opening, the sensor plate is arranged in the mounting cavity, and the sensor clamp spring is movably connected with the mounting part in a clamped mode. And the sensor clamp spring is positioned on one side, close to the end face opening, of the sensor plate. According to the air pump air pressure sensor fixing structure, the sensor plate is accommodated in the mounting cavity and limited by the sensor clamp spring clamped with the mounting part, so that the sensor plate is prevented from being separated from the mounting cavity, the mounting and dismounting are convenient, the assembly efficiency is improved, the production cost is reduced, and the sensor plate is convenient to maintain and replace.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to air pump technical field especially relates to air pump air pressure sensor fixing structure. BACKGROUND

[0002] In order to facilitate use, the pump head of the existing air pump will increase multiple functions, such as pressure detection, overshoot gas, etc., but these functions are mostly split setting, so that the space needs to be occupied is larger, and it also leads to the increase of connecting parts, improves the production cost, and the convenience of use is also lower. The connection mode of the air pressure sensor on the pump head of the existing air pump and the pump head output end is mostly bolted, which is inconvenient to disassemble, is not conducive to improving the assembly efficiency, reducing the production cost, and is also not conducive to maintenance and replacement. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that: provide a kind of air pump air pressure sensor fixing structure of easy disassembly.

[0004] To solve the above technical problem, the technical scheme adopted by the utility model is: air pump air pressure sensor fixing structure, for fixing sensor board on air pump;Including installation part and sensor clamping spring, the installation part is located on the air pump, the installation part has installation cavity, the end face of the installation cavity is communicated with the end face of the installation part to form end face opening, the sensor board is located in the installation cavity, the sensor clamping spring is movably connected with installation part, and the sensor clamping spring is located on the side of the sensor board close to the end face opening.

[0005] Further, the sensor clamping spring includes a bending portion and two elastic arms, the two ends of the bending portion are respectively connected with the two elastic arms, the middle part of the elastic arm is outwardly bent and protrudes to form an outwardly expanding portion, an insertion opening and a limiting hole communicating with the installation cavity are formed on the outer peripheral surface of the installation part, one end of the elastic arm close to the bending portion is inserted and matched with the limiting hole, and the other end of the two elastic arms away from the bending portion is arranged through the insertion opening.

[0006] Further, the sensor clamping spring is made of metal or plastic.

[0007] Further, the bending portion and the two elastic arms are an integral structure.

[0008] Further, a disassembly gap is further formed on the peripheral wall of the installation part, and the disassembly gap communicates with the middle part of the insertion opening and the end face opening.

[0009] Further, a chamfer structure is arranged at the connection between the disassembly gap and the insertion opening.

[0010] Further, the sensor plate is provided with a protruding portion protruding outward, and the protruding portion is provided with a wiring terminal, and the protruding portion is exposed to the mounting portion.

[0011] Further, the mounting portion is provided with a limiting hole through which the protruding portion passes, and the limiting hole is communicated with the insertion hole.

[0012] Further, the mounting portion is provided with a limiting hole through which the protruding portion passes, and the limiting hole is communicated with the insertion hole.

[0013] Further, the mounting portion is provided with a limiting hole through which the protruding portion passes, and the limiting hole is communicated with the insertion hole.

[0014] The beneficial effects of the utility model lie in that the air pump air pressure sensor fixing structure adopts a mounting cavity to accommodate the sensor plate, and a sensor clasp is used to limit the sensor plate in cooperation with the mounting portion, so that the sensor plate is prevented from being separated from the mounting cavity, and the sensor plate is convenient to disassemble and assemble, which is beneficial to improve the assembly efficiency, reduce the production cost, and facilitate the maintenance and replacement of the sensor plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 1 is a schematic view of an air pump air pressure sensor fixing structure according to an embodiment of the utility model;

[0016] Figure 2 Figure 1 is a schematic view of an air pump air pressure sensor fixing structure according to an embodiment of the utility model;

[0017] Figure 3 Figure 1 is a schematic view of an air pump air pressure sensor fixing structure according to an embodiment of the utility model;

[0018] Label explanation:

[0019] 1, sensor plate; 11, protruding portion; 12, wiring terminal;

[0020] 2, air pump;

[0021] 3, mounting portion; 31, mounting cavity; 311, end face opening; 32, insertion hole; 33, limiting hole; 34, disassembly gap; 35, chamfer structure; 36, limiting hole; 37, ring groove;

[0022] 4, sensor clasp; 41, bending portion; 42, elastic arm; 421, outward expansion portion;

[0023] 5, sealing ring. DETAILED DESCRIPTION

[0024] In order to illustrate the technical content, purposes and effects of the utility model, the following will be described in combination with the embodiments and the drawings.

[0025] Please refer to Figures 1 to 3, air pump air pressure sensor fixing structure, for fixing sensor board 1 on air pump 2, comprising mounting part 3 and sensor snap spring 4, the mounting part 3 is arranged on the air pump 2, the mounting part 3 has installation cavity 31, the installation cavity 31 is communicated with the end face of the mounting part 3 and forms end face opening 311, the sensor board 1 is arranged in the installation cavity 31, the sensor snap spring 4 is movably connected with mounting part 3, and the sensor snap spring 4 is located on the side of the sensor board 1 close to the end face opening 311.

[0026] From the above description, the beneficial effects of the utility model are that: the air pump air pressure sensor fixing structure adopts installation cavity 31 to accommodate sensor board 1, and utilizes sensor snap spring 4 connected with mounting part 3 to limit sensor board 1, avoids sensor board 1 from separating from installation cavity 31, is convenient to disassemble and assemble, is favorable for improving assembly efficiency, reduces production cost, and is convenient for maintenance and replacement of sensor board 1.

[0027] Further, the sensor snap spring 4 includes a bent portion 41 and two elastic arms 42, the two ends of the bent portion 41 are respectively connected with the two elastic arms 42, the middle part of the elastic arm 42 is bent outward to form an outward expansion portion 421, the outer circumferential surface of the mounting part 3 is provided with an insertion opening 32 and a limiting hole 33 communicated with the installation cavity 31, one end of the elastic arm 42 close to the bent portion 41 is inserted and matched with the limiting hole 33, and the other end of the two elastic arms 42 away from the bent portion 41 is arranged through the insertion opening 32.

[0028] From the above description, the two ends of the sensor snap spring 4 are respectively inserted and matched with the insertion opening 32 and the limiting hole 33, which can limit the relative position of the sensor snap spring 4 and the mounting part 3, avoid the sensor snap spring 4 from shaking and falling off, and the outward expansion portion 421 can prevent the sensor snap spring 4 from accidentally exiting the insertion opening 32.

[0029] Further, the sensor snap spring 4 is made of metal or plastic.

[0030] From the above description, the material of the sensor can be selected according to actual use needs or production conditions.

[0031] Further, the bent portion 41 and the two elastic arms 42 are an integral structure.

[0032] From the above description, the integral structure is convenient for production and manufacturing.

[0033] Further, the peripheral wall of the mounting part 3 is also provided with a dismounting gap 34, and the dismounting gap 34 is communicated with the middle part of the insertion opening 32 and the end face opening 311.

[0034] As can be seen from the above description, when the sensor snap spring 4 needs to be removed, only the end of the sensor snap spring 4 is withdrawn from the limiting hole 33, then the two elastic arms 42 are pressed away from one end of the bending part 41, the two elastic arms 42 are close to each other until the width of the part of the sensor snap spring 4 located in the insertion port 32 is less than the width of the disassembly gap 34, that is, the sensor snap spring 4 can be withdrawn from the installation cavity 31 along the disassembly gap 34.

[0035] Further, the connecting part of the disassembly gap 34 and the insertion port 32 is provided with a chamfer structure 35.

[0036] As can be seen from the above description, the chamfer structure 35 is provided to facilitate the withdrawal of the elastic arm 42 of the sensor snap spring 4 from the disassembly gap 34.

[0037] Further, the sensor plate 1 is provided with a protruding part 11 protruding outward, the protruding part 11 is provided with a wiring terminal 12, and the protruding part 11 is exposed to the installation part 3.

[0038] As can be seen from the above description, the wiring terminal 12 is arranged on the protruding part 11 exposed to the installation part 3, which is conducive to the connection and conduction of the sensor plate 1 and external devices.

[0039] Further, the peripheral wall of the installation part 3 is provided with a limiting hole 36 for the protruding part 11 to pass through, and the limiting hole 36 is communicated with the insertion port 32.

[0040] As can be seen from the above description, the limiting hole 36 can limit the position of the sensor plate 1, avoiding the shaking of the protruding part 11 of the sensor plate 1 in the insertion port 32.

[0041] Further, it further includes a sealing ring 5, and the sealing ring 5 is arranged at the bottom of the installation cavity 31.

[0042] As can be seen from the above description, the sealing ring 5 can seal the assembly gap between the sensor plate 1 and the bottom of the installation cavity 31, avoiding the short circuit or failure of the sensor plate 1 due to the influence of liquid or dust.

[0043] Further, the bottom surface of the installation cavity 31 is provided with a ring groove 37, and the sealing ring 5 is arranged in the ring groove 37.

[0044] As can be seen from the above description, the ring groove 37 can limit the position of the sealing ring 5, avoiding the displacement of the sealing ring 5.

[0045] Please refer to Figures 1 to 3The utility model discloses an embodiment one for: air pump air pressure sensor fixed structure for fixing sensor board 1 on air pump 2, including installation department 3 and sensor clamping spring 4, installation department 3 is located on air pump 2, installation department 3 has installation cavity 31, and installation cavity 31 is communicated with the end face of installation department 3 and forms end face opening 311, and sensor board 1 is located in installation cavity 31, and sensor clamping spring 4 is movably connected with installation department 3, and sensor clamping spring 4 is located on the side of sensor board 1 close to end face opening 311. Specifically, installation department 3 is cylindrical. Installation department 3 is formed by the partial region of the shell of air pump 2 extending outward, and the bottom surface of installation cavity 31 is communicated with the inner cavity of air pump 2.

[0046] As Figure 1 And Figure 3 Shown, sensor clamping spring 4 includes bending part 41 and two elastic arms 42, and the two ends of bending part 41 are connected with two elastic arms 42 respectively, and the middle part of elastic arm 42 is outwardly bent and protrudes to form outward expansion part 421, and the outer peripheral surface of installation department 3 is provided with insertion port 32 and limiting hole 33 communicated with installation cavity 31, and the end of elastic arm 42 close to bending part 41 is inserted and matched with limiting hole 33, and the end of two elastic arms 42 away from bending part 41 is provided with insertion port 32. Specifically, the interval of the side of two outward expansion parts 421 away from each other is greater than the width of insertion port 32. Bending part 41 and two elastic arms 42 are integrally formed into an integral structure. Sensor clamping spring 4 is made of metal material with certain elasticity. In other embodiments, it is also feasible that sensor clamping spring 4 is made of plastic material with certain elasticity.

[0047] As Figure 2 Shown, the peripheral wall of installation department 3 is also provided with dismounting gap 34, and dismounting gap 34 is communicated with the middle part of insertion port 32 and end face opening 311. Specifically, the width of dismounting gap 34 is less than the width of insertion port 32. When it is needed to remove sensor clamping spring 4, only the end of sensor clamping spring 4 is made to exit limiting hole 33, then the end of two elastic arms 42 away from bending part 41 is extruded, and two elastic arms 42 are made to approach each other until the width of the part region of sensor clamping spring 4 in insertion port 32 is less than the width of dismounting gap 34, that is, sensor clamping spring 4 can be made to exit installation cavity 31 along dismounting gap 34. Also, the end of sensor clamping spring 4 can be made to exit limiting hole 33, then the end of two elastic arms 42 away from bending part 41 is extruded, and two elastic arms 42 are made to approach each other until the maximum interval of the side of two outward expansion parts 421 away from each other is less than the width of insertion port 32, and finally sensor clamping spring 4 is made to exit installation cavity 31 along insertion port 32.

[0048] As Figure 2 Shown, the connecting place of dismounting gap 34 and insertion port 32 is provided with chamfer structure 35. It is easy to understand that the setting of chamfer structure 35 is more convenient for the exit of elastic arm 42 of sensor clamping spring 4 from dismounting gap 34.

[0049] As Figure 1 and Figure 3 shown, the sensor plate 1 is provided with a protruding portion 11 protruding outward, and the protruding portion 11 is provided with a terminal 12, and the protruding portion 11 is exposed to the mounting portion 3. Specifically, the width of the protruding portion 11 is smaller than the dismounting gap 34, and when assembling the sensor plate 1, the protruding portion 11 is aligned with the dismounting gap 34, and then the sensor plate 1 is moved along the axial direction of the mounting portion 3, so that the sensor plate 1 is mounted in the mounting cavity 31. It is easy to understand that arranging the terminal 12 on the protruding portion 11 exposed to the mounting portion 3 is beneficial to the connection and conduction of the sensor plate 1 and external devices.

[0050] As Figure 2 shown, the peripheral wall of the mounting portion 3 is provided with a limiting opening 36 through which the protruding portion 11 passes, and the limiting opening 36 communicates with the insertion opening 32. It is easy to understand that the limiting opening 36 can limit the position of the sensor plate 1, so as to avoid the protruding portion 11 of the sensor plate 1 from shaking in the insertion opening 32.

[0051] As Figure 2 shown, the air pump air pressure sensor fixing structure further comprises a sealing ring 5 arranged at the bottom of the mounting cavity 31. Specifically, the sealing ring 5 is an O-shaped sealing ring 5. The sealing ring 5 is used to seal the assembly gap between the sensor plate 1 and the bottom of the mounting cavity 31, so as to avoid the sensor plate 1 from being affected by liquid or dust and causing short circuit or failure.

[0052] As Figure 3 shown, in order to limit the position of the sealing ring 5 and avoid displacement of the sealing ring 5, a ring groove 37 is formed in the bottom surface of the mounting cavity 31, and the sealing ring 5 is arranged in the ring groove 37.

[0053] In summary, the air pump air pressure sensor fixing structure provided by the utility model adopts a mounting cavity to accommodate the sensor plate, and a sensor spring clamped with the mounting portion is used to limit the sensor plate, so as to avoid the sensor plate from being separated from the mounting cavity, and the dismounting is convenient, which is beneficial to improving the assembly efficiency, reducing the production cost, and facilitating the maintenance and replacement of the sensor plate.

[0054] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in related technical fields based on the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A fixing structure of an air pump air pressure sensor for fixing a sensor board on an air pump; characterized in that: The installation part is arranged on the air pump, has an installation cavity, and has an end face opening formed by the end face of the installation part. ​ 2. The air pump air pressure sensor fixing structure according to claim 1, characterized by: The sensor clamping spring includes a bending part and two elastic arms, the two ends of the bending part are connected with the two elastic arms respectively, the middle part of the elastic arm is bent outward to form an outward expansion part, the outer circumferential surface of the installation part is provided with an insertion opening and a limiting hole, the end of the elastic arm close to the bending part is inserted into the limiting hole, and the two ends of the elastic arms away from the bending part are arranged through the insertion opening.

3. The air pump air pressure sensor fixing structure according to claim 2, characterized by: The sensor clamping spring is made of metal or plastic.

4. The air pump air pressure sensor fixing structure according to claim 2, characterized by: The bending part and the two elastic arms are integrally formed.

5. The air pump air pressure sensor fixing structure according to claim 2, characterized by: The circumferential wall of the installation part is also provided with a dismounting gap, the dismounting gap is connected with the middle part of the insertion opening and the end face opening.

6. The air pump air pressure sensor fixing structure according to claim 5, characterized by: The connection part of the dismounting gap and the insertion opening is provided with a chamfer structure.

7. The air pump air pressure sensor fixing structure according to claim 5, characterized by: The sensor plate is provided with a protruding part protruding outward, the protruding part is provided with a terminal, and the protruding part is exposed to the installation part.

8. The air pump air pressure sensor fixing structure according to claim 7, characterized by: The circumferential wall of the installation part is provided with a limiting hole for the protruding part to pass through, and the limiting hole is connected with the insertion opening.

9. The air pump air pressure sensor fixing structure according to claim 1, characterized by: The installation part is arranged on the air pump, has an installation cavity, and has an end face opening formed by the end face of the installation part.

10. The air pump air pressure sensor fixing structure according to claim 9, characterized by: The bottom surface of the installation cavity is provided with a ring groove, and the sealing ring is arranged in the ring groove.