Proximity sensor housing

Abstract

The utility model discloses a proximity sensor housing, which comprises a housing body with an installation cavity and a bottom cover, an installation port communicated with the installation cavity and the outside is formed on the housing body, the bottom cover is covered on the installation port, and a sealing member surrounding the installation port is arranged between the housing body and the bottom cover. The sealing component is arranged in the mounting cavity in a sealing and sliding mode, moves towards the bottom cover in a reciprocating mode and has the tendency of abutting against the bottom cover, and a fastening assembly detachably connected with the shell is arranged at the position, located on the inner ring of the sealing component, of the bottom cover. The utility model has the following advantages and effects: the utility model is convenient to disassemble, assemble and maintain, and can ensure good sealing performance.

Description

Technical Field

[0001] The utility model relates to a proximity sensor, in particular to a proximity sensor housing. Background Art

[0002] Proximity sensors are a general term for sensors that replace contact-based detection methods like limit switches and are designed to detect objects without contact. They convert information about the movement and presence of the detected object into an electrical signal. These electrical signal detection methods include those that utilize eddy currents generated in the metal object due to electromagnetic induction, those that detect changes in the capacitance of the electrical signal due to the proximity of the detected object, and those that utilize electrical switches.

[0003] The proximity sensor housing consists of a housing with a mounting opening, a bottom cover covering the mounting opening, a sealing ring disposed between the housing and the bottom cover, and several fastening screws distributed around the periphery of the bottom cover and connecting the two. The tightening force exerted by the fastening screws forces the bottom cover to squeeze the sealing ring, thereby achieving a seal. However, the use of multiple fastening screws makes assembly, disassembly, and maintenance cumbersome, and can easily cause wear on the screw slots during operation. Therefore, in response to the aforementioned issues, the present invention was developed. Utility Model Content

[0004] The utility model aims to provide a proximity sensor housing, which is convenient to disassemble, assemble and maintain and can ensure good sealing performance.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a proximity sensor housing, comprising a shell having a mounting cavity and a bottom cover, a mounting opening connecting the mounting cavity with the outside world being formed on the shell and the bottom cover being covered by the mounting opening, a sealing component arranged around the mounting opening being provided between the shell and the bottom cover, the sealing component being sealingly slidably provided in the mounting cavity and reciprocatingly moving toward the bottom cover and having a tendency to press against the bottom cover, and a fastening component detachably connected to the shell being provided at a position on the inner circle of the sealing component.

[0006] By adopting the above technical solution, the use of a set of fastening assemblies reduces the number of fasteners used, thereby achieving convenient assembly and disassembly maintenance of the housing. Because this arrangement increases the distance between the fastening assemblies and the outer periphery of the bottom cover, the sealing member is configured to float to compensate for the larger fitting tolerance and insufficient sealing force caused by the long lever arm, thereby ensuring good sealing performance of the housing structure.

[0007] It is further configured as follows: an annular sliding groove with an opening toward one side of the bottom cover is formed on the side wall of the installation cavity, and the sealing component includes a sealing component sealingly slidingly arranged in the sliding groove and an elastic member driving the sealing component to seal against the bottom cover.

[0008] By adopting the above technical solution, the elastic member drives the sealing component to slide in the slide groove, so that the sealing component is tightly pressed against the bottom cover and sealed, thereby ensuring good sealing performance of the housing.

[0009] It is further configured that the sealing assembly includes a sliding ring slidably arranged in the sliding groove, a tight sealing ring arranged at one end of the sliding ring facing the bottom cover, and a sliding sealing ring arranged on the sliding ring and slidingly sealing with the sliding groove.

[0010] By adopting the above technical solution, the setting of the tight sealing ring realizes the sealing between the slip ring and the bottom cover, and the setting of the sliding sealing ring realizes the sealing between the slip ring and the shell, which cooperates to form the sealing between the bottom cover and the shell, thereby ensuring the good sealing performance of the shell.

[0011] It is further configured that: an offset adjustment gap is formed between the side wall of the slip ring and the side wall of the sliding groove.

[0012] By adopting the above technical solution, when the bottom cover is deformed due to long-term use, the offset adjustment gap is set so that the sliding ring in the slide groove can be adaptively offset-adjusted according to the deformation of the bottom cover, so that the bottom cover can also be tightly fitted and sealed against the sealing ring on the bottom cover after deformation, thereby ensuring the sealing performance of the structure.

[0013] It is further configured that: the fastening assembly includes a fixing column fixedly arranged in the installation cavity and a fastening screw passing through the bottom cover and threadedly connected to the fixing column.

[0014] By adopting the above technical solution, the fastening screw cooperates with the fixing column to achieve a fastening connection between the bottom cover and the shell.

[0015] It is further configured that: the side surface of the bottom cover is provided with a reinforcing rib extending radially along the bottom cover, and a plurality of the reinforcing ribs are distributed around the fastening assembly.

[0016] By adopting the above technical solution, the provision of the reinforcing ribs is used to improve the structural strength of the bottom cover.

[0017] It is further configured as follows: it also includes a mounting base, and the mounting base is detachably connected to the shell.

[0018] By adopting the above technical solution, the mounting seat is used to install the shell in the position to be installed. By setting the mounting seat and the shell into a detachable structure, it is convenient to perform disassembly and maintenance operations later, making the operation more convenient.

[0019] It is further configured as follows: the mounting seat is provided with a plurality of elastic claws distributed around the outer circumference of the shell and a clamping groove is provided on the outer wall of the shell and corresponds to each elastic claw.

[0020] By adopting the above technical solution, the elastic claw cooperates with the slot to realize the detachable connection between the mounting base and the shell, which makes disassembly and assembly convenient and lowers the cost.

[0021] It is further configured that: a plurality of the card slots are interconnected along the circumferential distribution direction of the card slots to form a ring.

[0022] By adopting the above technical solution, this setting structure eliminates the need for alignment during the card fitting operation, making the operation more convenient.

[0023] In summary, the present invention has the following beneficial effects: the present invention is easy to disassemble, assemble and maintain and can ensure good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an embodiment;

[0025] Figure 2 is a cross-sectional view of an embodiment;

[0026] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0027] Figure 4 A partial exploded view of an embodiment;

[0028] Figure 5 It is a schematic diagram of the local structure of the embodiment.

[0029] In the figure: 1. Mounting cavity; 2. Shell; 3. Bottom cover; 4. Sealing member; 41. Elastic member; 42. Slip ring; 43. Tightening seal ring; 44. Sliding seal ring; 51. Fixing column; 52. Fastening screw; 6. Slide groove; 7. Offset adjustment gap; 8. Reinforcing rib; 9. Mounting seat; 10. Elastic claw; 11. Slot. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings.

[0031] refer to Figures 1 to 5 A proximity sensor housing comprises a housing 2 with a mounting cavity 1 and a bottom cover 3. The housing 2 defines a mounting opening that connects the mounting cavity 1 with the outside world, and the bottom cover 3 is positioned over the mounting opening. A sealing member 4 is disposed between the housing 2 and the bottom cover 3, surrounding the mounting opening. The sealing member 4 slides sealingly within the mounting cavity 1 and reciprocates toward the bottom cover 3, tending to press against the bottom cover 3. A fastening assembly is provided on the bottom cover 3, located within the inner periphery of the sealing member 4, for removable connection to the housing 2.

[0032] An annular groove 6 with an opening toward the bottom cover 3 is formed on the side wall of the mounting cavity 1. The sealing member 4 includes a sealing assembly that slides in the groove 6 and an elastic member 41 that drives the sealing assembly to seal against the bottom cover 3. The sealing assembly includes a slip ring 42 that slides in the groove 6, a sealing ring 43 that is fixed to the end of the slip ring 42 facing the bottom cover 3, and a sliding sealing ring 44 that is fixed to the upper end of the slip ring 42 and slides in a sealed manner with the groove 6. An offset adjustment gap 7 is formed between the side wall of the slip ring 42 and the side wall of the groove 6, and the elastic member 41 is a spring installed in the groove 6. An air hole is provided in the groove 6 at the position corresponding to the elastic member 41.

[0033] The fastening assembly includes a fixing post 51 integrally disposed within the mounting cavity 1, and a fastening screw 52 extending through the bottom cover 3 and threadedly connected to the fixing post 51. The bottom cover 3 is provided with a radially extending reinforcing rib 8. Multiple reinforcing ribs 8 are distributed around the fastening screw 52. The reinforcing ribs 8 are integrally disposed with the bottom cover 3, while the fixing post 51 is integrally disposed with the housing 2.

[0034] The housing 2 also includes a mounting base 9 that is detachably connected to the housing 2. The mounting base 9 is integrally provided with a plurality of elastic claws 10 distributed around the outer circumference of the housing 2, and a slot 11 formed in the outer wall of the housing 2 and corresponding to each elastic claw 10. The plurality of slots 11 are interconnected along the circumferential direction of the slots 11 to form an annular shape. Both the elastic claws 10 and the mounting base 9 are made of plastic.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A proximity sensor housing, comprising a housing (2) having a mounting cavity (1) and a bottom cover (3), wherein the housing (2) is formed with a mounting opening for connecting the mounting cavity (1) with the outside, and the bottom cover (3) is arranged to cover the mounting opening, characterized in that: A sealing member (4) is provided between the housing (2) and the bottom cover (3) and is arranged around the installation opening. The sealing member (4) is sealingly slidably provided in the installation cavity (1) and reciprocates toward the bottom cover (3) and has a tendency to press against the bottom cover (3). The bottom cover (3) is provided with a fastening component that is detachably connected to the housing (2) at a position located within the inner circle of the sealing member (4).

2. The proximity sensor housing according to claim 1, wherein: An annular sliding groove (6) with an opening toward one side of the bottom cover (3) is formed on the side wall of the installation cavity (1), and the sealing member (4) comprises a sealing component that is sealingly slidably arranged in the sliding groove (6) and an elastic member (41) that drives the sealing component to press against the bottom cover (3) for sealing.

3. The proximity sensor housing according to claim 2, wherein: The sealing assembly comprises a sliding ring (42) slidingly arranged in the sliding groove (6), a tight sealing ring (43) arranged at one end of the sliding ring (42) facing the bottom cover (3), and a sliding sealing ring (44) arranged on the sliding ring (42) and forming a sealing sliding with the sliding groove (6).

4. The proximity sensor housing according to claim 3, wherein: A deflection adjustment gap (7) is formed between the side wall of the slip ring (42) and the side wall of the slide groove (6).

5. The proximity sensor housing according to claim 1, wherein: The fastening assembly comprises a fixing column (51) fixedly arranged in the installation cavity (1) and a fastening screw (52) passing through the bottom cover (3) and threadedly connected to the fixing column (51).

6. The proximity sensor housing according to claim 1, wherein: The side surface of the bottom cover (3) is provided with reinforcing ribs (8) extending radially along the bottom cover (3), and a plurality of the reinforcing ribs (8) are distributed around the fastening assembly.

7. The proximity sensor housing according to claim 1, wherein: It also includes a mounting seat (9), which is detachably connected to the housing (2).

8. The proximity sensor housing according to claim 7, wherein: The mounting seat (9) is provided with a plurality of elastic claws (10) distributed around the outer periphery of the shell (2) and a slot (11) provided on the outer wall of the shell (2) and corresponding to each elastic claw (10).

9. The proximity sensor housing according to claim 8, wherein: A plurality of the clamping grooves (11) are interconnected along the circumferential distribution direction of the clamping grooves (11) to form a ring.

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