Proximity switch

Abstract

According to the technical scheme, the proximity switch is characterized in that the proximity switch comprises a proximity switch body, an adjusting cylinder, a protective sleeve and a protective spring, the adjusting cylinder is detachably installed outside the proximity switch body, and an adjusting structure is arranged between the adjusting cylinder and the proximity switch body; a first limiting ring is arranged on the proximity switch body in a protruding mode, a second limiting ring is arranged on the adjusting cylinder in a protruding mode, and the first limiting ring and the second limiting ring define an installation area for installation of the protection spring. One end of the protection sleeve is slidably connected in the installation area and abuts against the second limiting ring and the protection spring, and the proximity switch not only can be conveniently assembled, but also can be properly adjusted according to specific use conditions.

Description

Technical Field

[0001] This utility model relates to a sensor, and more specifically, to a proximity switch. Background Technology

[0002] A proximity switch is a non-contact position switch that can be operated without direct mechanical contact with moving parts. When an object approaches the sensing surface of the switch at a certain distance, the switch can be activated without applying any pressure or mechanical contact, thereby driving DC electrical appliances or providing control commands to computer devices. It has the characteristics of limit switches and micro switches, and also has sensing capabilities. It features reliable operation, stable performance, fast frequency response, long service life, and strong anti-interference ability, and is also waterproof, shockproof, and corrosion-resistant.

[0003] An existing anti-collision proximity switch, publication number CN221669858U, utilizes a guide protective sleeve design to effectively reduce the risk of damage to the proximity switch body and provide effective protection. However, the following problems have been found: 1. The protective sleeve is extremely inconvenient to install and remove, thus affecting assembly efficiency and ease of maintenance; 2. In the micro-placement machines used in electronic equipment manufacturing, the mechanical structure is extremely compact, and the distance between components is small. Proximity switches are commonly used to detect the position and movement of the placement head. Adjustable-length proximity switches can be precisely installed in the appropriate position based on the limited installation space inside the placement machine, avoiding interference with other components and ensuring stable detection of the placement head's movement. However, the distance between the protective sleeve and the proximity switch body of existing proximity switches cannot be adjusted, making it difficult to conveniently adjust the length of the proximity switch and limiting its flexible use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a proximity switch that is not only easy to assemble, but also can be appropriately adjusted according to specific usage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a proximity switch, comprising a proximity switch body, an adjusting cylinder, a protective sleeve, and a protective spring, wherein the adjusting cylinder is detachably installed on the outside of the proximity switch body, and an adjusting structure is provided between the adjusting cylinder and the proximity switch body;

[0006] The proximity switch body is provided with a first limiting ring, and the adjusting cylinder is provided with a second limiting ring. The first limiting ring and the second limiting ring together form an installation area for the installation of the protective spring.

[0007] One end of the protective cover is slidably connected within the installation area and is respectively abutted against the second limiting ring and the protective spring.

[0008] The present utility model is further configured as: the adjusting structure includes a threaded structure provided on the outer side of the proximity switch body and the inner side of the adjusting cylinder.

[0009] The present utility model is further configured as: convex blocks for installing the protective spring are provided at the opposite ends of the first limiting ring and the protective cover.

[0010] The present utility model is further configured as: the adjusting cylinder is provided in a columnar structure, and the second limiting ring is provided at one end of the adjusting cylinder away from the first limiting ring. When the adjusting cylinder is installed on the proximity switch body, the adjusting cylinder abuts against the first limiting ring.

[0011] The present utility model is further configured as: an adjusting ring is detachably installed on the proximity switch body. A groove for inserting the convex block is provided on the side of the adjusting ring facing the first limiting ring, and a mounting block protrudes from the side of the adjusting ring facing away from the first limiting ring.

[0012] The present utility model is further configured as: a guiding arc surface is provided at the first end of the protective cover.

[0013] The present utility model is further configured as: a butt joint edge extends downward at the second end of the protective cover.

[0014] The present utility model is further configured as: a base is detachably installed at one end of the proximity switch body away from the protective cover.

[0015] The present utility model is further configured as: the base is provided in a "C" - shaped structure. A reset spring for abutting against the proximity switch body is provided inside the base. The base includes a shielding block at the opening, and the shielding block is detachably installed on the base;

[0016] A limiting plate slidably connected inside the base is provided on the proximity switch body.

[0017] The present utility model is further configured as: threaded holes are provided on the base, and the shielding block is screwed into the threaded holes. Both the threaded holes and the shielding block are provided in multiple groups.

[0018] To sum up, the present utility model has the following beneficial effects: 1. With the design of the detachable adjusting cylinder, protective cover, and protective spring, the protective structure can be flexibly installed according to the usage scenarios of the proximity switch, and it is convenient for pre - assembly and post - maintenance.

[0019] 2. By selecting to install adjusting cylinders and protective springs of different lengths, the overall length of the proximity switch can be appropriately adjusted, so as to flexibly meet the usage requirements of individual specific scenarios. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a proximity switch;

[0021] Figure 2 This is a schematic diagram of the separate structure of a proximity switch;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the protective case.

[0023] Reference numerals in the attached drawings: 1. Proximity switch body; 11. First limiting ring; 12. Protrusion; 2. Adjusting cylinder; 21. Second limiting ring; 3. Protective sleeve; 31. Guide arc surface; 32. Abutment edge; 4. Protective spring; 5. Adjusting structure; 6. Base; 61. Blocking block; 62. Threaded hole; 63. Limiting plate. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Reference Figures 1 to 3 As shown, in order to achieve the above objectives, the present invention provides the following technical solution: a proximity switch, including a proximity switch body 1, an adjusting cylinder 2, a protective sleeve 3 and a protective spring 4, wherein the adjusting cylinder 2 is detachably installed on the outside of the proximity switch body 1, and an adjusting structure 5 is provided between the adjusting cylinder 2 and the proximity switch body 1;

[0026] The proximity switch body 1 is provided with a first limiting ring 11 protruding, and the adjusting cylinder 2 is provided with a second limiting ring 21 protruding. The first limiting ring 11 and the second limiting ring 21 together form an installation area for the installation of the protective spring 4.

[0027] One end of the protective sleeve 3 is slidably connected to the installation area and abuts against the second limit ring 21 and the protective spring 4 respectively.

[0028] The design of this utility model, 1. utilizes a detachable adjusting cylinder 2, a protective sleeve 3, and a protective spring 4, which allows for flexible installation of the protective structure according to the application scenario of the proximity switch, and facilitates initial assembly and subsequent maintenance.

[0029] 2. By selecting and installing adjusting cylinders 2 and protective springs 4 of different lengths, the overall length of the proximity switch can be appropriately adjusted to flexibly meet the needs of specific scenarios.

[0030] like Figure 1 As shown, when an external object impacts the protective sleeve 3 on the left, the protective sleeve 3 can move to the right and compress the protective spring 4, thereby providing a buffering effect.

[0031] like Figure 2 The assembly process of the device is as follows: the adjusting cylinder 2 is passed through the protective sleeve 3 from left to right, the protective spring 4 is sleeved on the adjusting cylinder 2 from right to left, and then the adjusting cylinder 2 is installed on the proximity switch body 1.

[0032] This utility model is further configured such that the adjusting structure 5 includes a threaded structure disposed on the outer side of the proximity switch body 1 and the inner side of the adjusting cylinder 2. The design of the threaded structure not only facilitates the assembly of the two but also allows the proximity switch to be assembled to other areas without installing a protective structure.

[0033] The present invention is further configured such that: both the first limiting ring 11 and the protective sleeve 3 have protrusions 12 at their opposite ends for mounting the protective spring 4. The design of the protrusions 12 facilitates the positioning of the protective spring 4.

[0034] The present invention is further configured such that: the adjusting cylinder 2 is arranged in a columnar structure, and the second limiting ring 21 is disposed at the end of the adjusting cylinder 2 away from the first limiting ring 11. When the adjusting cylinder 2 is installed on the proximity switch body 1, the adjusting cylinder 2 abuts against the first limiting ring 11. This structural design can ensure a stable connection between the two.

[0035] This invention is further configured such that: an adjusting ring is detachably mounted on the proximity switch body 1; the adjusting ring has a groove for the insertion of a protrusion 12 on the side facing the first limiting ring 11; and a mounting block protrudes from the side of the adjusting ring facing away from the first limiting ring 11. This structure allows for the creation of proximity switches with varying lengths by adjusting whether or not an adjusting ring is installed and by adjusting the width of the adjusting ring. It should be noted that only the distance between the protective sleeve 3 and the end of the proximity switch body 1 can be adjusted, not the length of the proximity switch body 1, thus increasing the buffer length. However, it is necessary to ensure that the sensing performance of the proximity switch is not affected.

[0036] The present invention is further configured such that a guide arc surface 31 is provided on the first end of the protective sleeve 3. The design of this arc surface can guide the impacting object, thereby effectively reducing the risk of damage to the proximity switch body 1.

[0037] The present invention is further configured such that: the second end of the protective sleeve 3 extends downward and is provided with an abutment edge 32. The diameter formed by the abutment edge 32 is smaller than the diameter of the second limiting ring 21, and the diameter formed by the abutment edge 32 is larger than the diameter of the adjusting cylinder 2, thereby enabling the abutment edge 32 to form a limiting fit with the second limiting ring 21.

[0038] The utility model is further configured such that a base 6 is detachably mounted at one end of the proximity switch body 1 away from the protective sleeve 3.

[0039] The utility model is further configured such that the base 6 is arranged in a "C" - shaped structure, a return spring for abutting against the proximity switch body 1 is arranged inside the base 6, the base 6 includes a shielding block 61 located at the opening, and the shielding block 61 is detachably mounted on the base 6;

[0040] A limiting plate 63 slidably connected inside the base 6 is arranged on the proximity switch body 1.

[0041] The utility model is further configured such that threaded holes 62 are arranged on the base 6, the shielding block 61 is screwed into the threaded holes 62, and both the threaded holes 62 and the shielding block 61 are provided in multiple groups.

[0042] The design of the base 6 can increase the buffer space. First, the base 6 has various styles, which is convenient for installation in a designated area.

[0043] Secondly, by screwing the shielding block 61, it is convenient for the assembly of the base 6 and the proximity switch body 1.

[0044] When the proximity switch body 1 is stressed, the proximity switch body 1 will further move to the right, thus moving to the right along the internal space of the base 6 and compressing the return spring, playing a certain buffering effect.

[0045] The above is only the preferred embodiment of the utility model. The protection scope of the utility model is not limited to the above - mentioned embodiments. All technical solutions falling within the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, several improvements and refinements should also be regarded as within the protection scope of the utility model.

Claims

1. A proximity switch, characterized in that: It includes a proximity switch body (1), an adjusting cylinder (2), a protective sleeve (3) and a protective spring (4). The adjusting cylinder (2) is detachably installed outside the proximity switch body (1), and an adjusting structure (5) is provided between the adjusting cylinder (2) and the proximity switch body (1). A first limiting ring (11) protrudes from the proximity switch body (1), and a second limiting ring (21) protrudes from the adjusting cylinder (2). The first limiting ring (11) and the second limiting ring (21) enclose an installation area for installing the protective spring (4). One end of the protective sleeve (3) is slidably connected within the installation area and is respectively in contact with the second limiting ring (21) and the protective spring (4).

2. The proximity switch according to claim 1, characterized in that: The adjusting structure (5) includes a thread structure provided on the outer side of the proximity switch body (1) and the inner side of the adjusting cylinder (2).

3. A proximity switch according to claim 2, characterized in that: Convex blocks (12) for installing the protective spring (4) are provided at the opposite ends of the first limiting ring (11) and the protective sleeve (3).

4. A proximity switch according to claim 3, characterized in that: The adjusting cylinder (2) is provided in a columnar structure, and the second limiting ring (21) is provided at the end of the adjusting cylinder (2) away from the first limiting ring (11). When the adjusting cylinder (2) is installed on the proximity switch body (1), the adjusting cylinder (2) abuts against the first limiting ring (11).

5. A proximity switch according to claim 4, characterized in that: An adjusting ring is detachably installed on the proximity switch body (1). A groove for inserting the convex block (12) is provided on the side of the adjusting ring facing the first limiting ring (11), and an installation block protrudes from the side of the adjusting ring facing away from the first limiting ring (11).

6. A proximity switch according to any one of claims 1-5, characterized in that: A guiding arc surface (31) is provided at the first end of the protective sleeve (3).

7. A proximity switch according to claim 6, characterized in that: A contact edge (32) extends downward at the second end of the protective sleeve (3).

8. A proximity switch according to any one of claims 1-5, characterized in that: A base (6) is detachably installed at the end of the proximity switch body (1) away from the protective sleeve (3).

9. A proximity switch according to claim 1, characterized in that: The base (6) is provided in a "C" - shaped structure. A return spring for abutting against the proximity switch body (1) is provided inside the base (6). The base (6) includes a shielding block (61) at the opening, and the shielding block (61) is detachably installed on the base (6). A limiting plate slidably connected within the base (6) is provided on the proximity switch body (1).

10. A proximity switch according to claim 9, characterized in that: Threaded holes (62) are provided on the base (6), and the shielding block (61) is screwed into the threaded holes (62). Both the threaded holes (62) and the shielding block (61) are provided in multiple groups.

Images