Proximity switch anti-collision device
By using a swingable fixing component and a flexible clamping structure, the applicability of existing proximity switch anti-collision devices to single-diameter sensing heads is solved, achieving effective fixing and anti-collision protection for proximity switches of different sizes, thus improving the applicability and practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MOODY OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-06-19
AI Technical Summary
Existing proximity switch anti-collision devices can only protect sensors of a single diameter, reducing their applicability.
It employs a swingable fixing component and an elastic clamping structure, using first and second spring pillars and rubber pads to elastically clamp the proximity switch, accommodating proximity switches of different sizes, and providing protection in conjunction with a limit component and a protective plate.
It achieves effective fixing and anti-collision protection for proximity switches of different sizes, improving the applicability and practicality of the device.
Smart Images

Figure CN224385493U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of proximity switch technology, specifically a proximity switch anti-collision device. Background Technology
[0002] A proximity switch is a position switch that can be operated without direct mechanical contact with moving parts. When an object approaches the sensing surface of the switch to the operating distance, the switch can be activated without mechanical contact or the application of any pressure. Proximity switches are usually fixed to the frame, base, or guide rail of mobile devices by brackets. To ensure the sensitivity of the proximity switch, the distance between the switch and the moving object to be detected should not be too far, ensuring that it is within the sensing distance range. A proximity switch generally consists of two components: a sensing head and a controller.
[0003] The prior art, disclosed in CN220732747U, provides a proximity switch anti-collision device, relating to the field of proximity switch technology. This proximity switch anti-collision device includes a proximity switch mounting platform, a proximity switch controller, and a proximity switch sensing head. The proximity switch controller, proximity switch sensing head, and proximity switch mounting platform are all electrically connected. A placement groove is formed on the front surface of the proximity switch mounting platform. A support block is fixedly connected to the front surface of the proximity switch mounting platform. A motor is fixedly connected to the front surface of the proximity switch mounting platform. An anti-collision device and a quick-release device are provided on the front surface of the proximity switch mounting platform. Two support plates form a reverse support structure for corresponding protective blocks, reinforcing the protective blocks and increasing resistance after impact, thus protecting the proximity switch sensing head, reducing the likelihood of damage to the proximity switch after impact, and increasing practicality.
[0004] The aforementioned patent primarily uses protective blocks on both sides to clamp the proximity switch sensor head, thereby achieving the purpose of anti-collision protection for the proximity switch sensor head. However, since the size of the gap inside the protective blocks on both sides is fixed, this method of protecting the proximity switch sensor head can only protect a proximity switch sensor head of a single diameter, reducing the applicability of the proximity switch anti-collision device to the use of proximity switch sensors. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a proximity switch anti-collision device, thus solving the above-mentioned technical problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a proximity switch anti-collision device, comprising a fixing component, a swinging component mounted on one side of the fixing component, a proximity switch clamped and fixed between the fixing component and the swinging component, a limiting component installed between the fixing component and the swinging component, the limiting component being used to limit the swinging of the swinging component, the fixing component including a top block, a clamping component fixedly mounted below the top block, the clamping component including a first side block, a first inner groove formed in the first side block, a first spring post fixedly mounted in the first inner groove, the swinging component including a second side block that swings on the top block, a second inner groove formed in the second side block, a second spring post fixedly mounted in the second inner groove, the first spring post and the second spring post being used to elastically clamp the proximity switch. The first spring post and the second spring post elastically clamp the proximity switch, allowing the first spring post and the second spring post to clamp and fix proximity switches of different sizes, improving the applicability of the proximity switch anti-collision device for proximity switches.
[0007] Furthermore, a first pad is fixedly connected to the first spring post, and a second pad is fixedly connected to the second spring post. Both the first and second pads are made of rubber. The fact that both the first and second pads are made of rubber allows them to better protect the proximity switch, improving the practicality of the proximity switch anti-collision device.
[0008] Furthermore, a bonding plate is fixedly installed on the top of the first side block, and the bonding plate is fixedly connected to the top block by bolts. A first protective plate is fixedly installed on the front end of the first side block, and a second protective plate is fixedly installed on the end of the second side block near the first protective plate. Both the first and second protective plates are inwardly curved plates. The first and second protective plates are used to protect the front end of the proximity switch from impact.
[0009] Furthermore, a fixed shaft is fixedly installed at the end of the top block away from the clamping assembly, and a top groove is formed on the top of the second side block. The fixed shaft penetrates the top groove, and the second side block swings on the fixed shaft through the top groove. The swinging of the second side block on the fixed shaft through the top groove improves the integrity of the internal structure of the proximity switch anti-collision device.
[0010] Furthermore, the limiting component includes a limiting shaft fixedly mounted on one side of the first side block, a limiting plate fixedly mounted on the end of the limiting shaft away from the first side block, and a spring disposed on the side of the limiting plate near the clamping component. The spring is sleeved on the limiting shaft. A side groove is formed on the second side block, and the limiting shaft is movably located within the side groove. The spring is located between the limiting plate and the second side block. The spring's position between the limiting plate and the second side block further enhances the overall impact resistance of the proximity switch anti-collision device.
[0011] Furthermore, both the first and second side blocks have cylindrical grooves extending through their ends away from the top block. Locking shafts are installed through these cylindrical grooves at the bottom of the first and second side blocks, and are fixed to the first and second side blocks by bolts. This bolt-fixing of the locking shafts to the first and second side blocks makes the internal structure of the proximity switch anti-collision device more robust and reliable, thus improving the safety of the proximity switch anti-collision device during operation.
[0012] Furthermore, a mounting plate is fixedly installed behind the top block, and the mounting plate is used for the integrated connection between the top block and external devices. The mounting plate enhances the overall connection versatility of the proximity switch anti-collision device. Beneficial effects
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention, by configuring the swing assembly that holds the proximity switch to swing around the fixed assembly, and by configuring the first and second pads that are attached to the outside of the proximity switch to be retractable, allows the length of the internal spring column to be adjusted according to the size of the proximity switch during installation. This enables the proximity switch anti-collision device to fix and protect proximity switches of different sizes, thus improving the applicability of the proximity switch anti-collision device to proximity switch sensors. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a proximity switch anti-collision device according to the present invention;
[0016] Figure 2 This is a three-dimensional structural diagram of the fixing component of this utility model;
[0017] Figure 3 This is a partially enlarged three-dimensional structural diagram of A of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the clamping assembly of this utility model;
[0019] Figure 5This is a three-dimensional structural diagram of the swing assembly of this utility model;
[0020] Figure 6 This is a partially enlarged three-dimensional structural diagram of utility model B.
[0021] In the diagram: 1. Proximity switch; 2. Swing assembly; 3. Limit assembly; 4. Fixing assembly; 41. Clamping assembly; 42. Top block; 43. Mounting plate; 44. Locking shaft; 45. Fixing shaft; 31. Limiting shaft; 32. Spring; 33. Limiting plate; 411. First side block; 412. First protective plate; 413. First spring post; 414. First inner groove; 415. First pad; 416. Adhesive plate; 21. Second side block; 22. Second protective plate; 23. Second inner groove; 24. Second pad; 25. Second spring post; 26. Top groove; 27. Side groove. Detailed Implementation
[0022] The technical solution 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. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0023] Example
[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6This application provides a further detailed description. A proximity switch anti-collision device includes a fixing component 4, a swing component 2 oscillatingly mounted on one side of the fixing component 4, a proximity switch 1 clamped and fixed between the fixing component 4 and the swing component 2, and a limit component 3 installed between the fixing component 4 and the swing component 2 to limit the swing of the swing component 2. The fixing component 4 includes a top block 42, and a clamping component 41 is fixedly mounted below the top block 42. The clamping component 41 includes a first side block 411, a first inner groove 414 formed within the first side block 411, and a first spring post 413 fixedly mounted within the first inner groove 414. The swing component 2 includes a second side block 2 that swings on the top block 42. 1. A second inner groove 23 is formed in the second side block 21. A second spring post 25 is fixedly installed in the second inner groove 23. The first spring post 413 and the second spring post 25 are used to elastically clamp the proximity switch 1. A first pad 415 is fixedly connected to the first spring post 413, and a second pad 24 is fixedly connected to the second spring post 25. Both the first pad 415 and the second pad 24 are made of rubber. A bonding plate 416 is fixedly installed on the top of the first side block 411. The bonding plate 416 is fixedly connected to the top block 42 by bolts. A first protective plate 412 is fixedly installed at the front end of the first side block 411. The second side block 21 is close to the first protective plate 412. A second protective plate 22 is fixedly installed at the end of the first protective plate 412. Both the first protective plate 412 and the second protective plate 22 are inwardly curved plates. The first protective plate 412 and the second protective plate 22 are used to protect the front end of the proximity switch 1 from impact. A fixed shaft 45 is fixedly installed at the end of the top block 42 away from the clamping assembly 41. A top groove 26 is opened on the top of the second side block 21. The fixed shaft 45 penetrates the top groove 26. The second side block 21 swings on the fixed shaft 45 through the top groove 26. The limiting assembly 3 includes a limiting shaft 31 fixedly installed on one side of the first side block 411. A limiting plate 33 is fixedly installed at the end of the limiting shaft 31 away from the first side block 411. A spring 32 is provided on one side near the clamping assembly 41. The spring 32 is sleeved on the limiting shaft 31. A side groove 27 is provided on the second side block 21. The limiting shaft 31 is movably located in the side groove 27. The spring 32 is located between the limiting plate 33 and the second side block 21. A cylindrical groove is provided through the end of the first side block 411 and the second side block 21 away from the top block 42. A locking shaft 44 is installed through the cylindrical groove at the bottom of the first side block 411 and the second side block 21. The locking shaft 44 is fixed to the first side block 411 and the second side block 21 by bolts. A mounting plate 43 is fixedly installed behind the top block 42. The mounting plate 43 is used for the integrated connection between the top block 42 and external devices.
[0025] In this invention, the connecting wire at the end of the proximity switch 1 is used to connect to the corresponding controller. The proximity switch 1 is a position switch that can be operated without direct mechanical contact with moving parts. When an object approaches the sensing surface of the switch to the action distance, the switch can be activated without mechanical contact or applying any pressure, thereby driving DC electrical appliances or providing control commands to computer devices. The proximity switch 1 of this invention is a common model on the market, and this invention is in the field of proximity switch technology. Therefore, those skilled in the art are familiar with all knowledge about proximity switches. This invention will not elaborate on the proximity switch 1 in detail.
[0026] It should be noted that the electrical components and control components in this application are all connected to an external controller and are all existing technologies. This application has not improved them and does not affect the integrity of this application. Furthermore, the parts not involved or not disclosed in detail are the same as or implemented using existing technologies.
[0027] Since the limiting shaft 31 can move within the side groove 27 of the second side block 21, the swing range of the swing component 2 will not exceed the limiting disk 33, so that the swing component 2 can only swing within a small range, which improves the operating accuracy of the proximity switch anti-collision device. Furthermore, since the spring 32 is located between the limiting disk 33 and the second side block 21, when the proximity switch 1 is subjected to external impact, the rebound force of the spring 32 can effectively buffer the impact force, thus improving the practicality of the proximity switch anti-collision device.
[0028] Users can use the mounting plate 43 to install the proximity switch anti-collision device on other equipment, so that the proximity switch anti-collision device and other equipment are integrated, providing further protection for the proximity switch 1.
[0029] After the first side block 411 and the second side block 21 are installed, the user inserts the locking shaft 44 through the cylindrical groove at the bottom of both blocks and finally fixes them with bolts. This allows the proximity switch 1 to be simultaneously subjected to the limiting force of the locking shaft 44, the squeezing force of the first pad 415 and the second pad 24, and the clamping force of the first protective plate 412 and the second protective plate 22 after installation, thereby improving the firmness of the proximity switch 1 after installation.
[0030] The working principle of this utility model is explained below: Unless otherwise specified, all internal mechanical structures of the proximity switch anti-collision device are fixed by threads. To allow for a more intuitive observation of the technical features, the bolt connections are appropriately concealed in the figure. When using the proximity switch anti-collision device, the user simply needs to manually swing the swing assembly 2 in the opposite direction to the clamping assembly 41 and support it. Then, the user attaches the proximity switch 1, which requires anti-collision protection, to the first pad 415 and the first protective plate 412. Afterward, the user simply releases their grip, and the spring force of the spring 32 will cause the second side block 21 to swing back. The proximity switch 1 will then be subjected to the squeezing force of the first pad 415 and the second pad 24, as well as the pressure from the first protective plate. The clamping force of the first side block 411, the first protective plate 412, the second side block 21, and the second protective plate 22 together provide anti-collision protection for the proximity switch 1. After the proximity switch 1 is installed, the user passes the locking shaft 44 through the bottom of the swing assembly 2 and the fixing assembly 4, and finally fixes them with bolts to fix the proximity switch 1. Through the cooperation of the above structures, the length of the internal spring column of the proximity switch anti-collision device can be adjusted according to the size of the proximity switch, so that the proximity switch anti-collision device can fix and protect proximity switches of different sizes, improving the applicability of the proximity switch anti-collision device to the proximity switch sensor head.
[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
Claims
1. A proximity switch anti-collision device, characterized in that, The system includes a fixed component (4), on one side of which a swing component (2) is mounted. A proximity switch (1) is clamped and fixed between the fixed component (4) and the swing component (2). A limit component (3) is installed between the fixed component (4) and the swing component (2) to limit the swing of the swing component (2). The fixed component (4) includes a top block (42), and a clamping component (41) is fixedly mounted below the top block (42). The clamping component (41) includes a first side... The first side block (411) has a first inner groove (414) and a first spring column (413) is fixedly installed in the first inner groove (414). The swing assembly (2) includes a second side block (21) that swings on the top block (42). The second side block (21) has a second inner groove (23) and a second spring column (25) is fixedly installed in the second inner groove (23). The first spring column (413) and the second spring column (25) are used to elastically clamp the proximity switch (1).
2. The proximity switch anti-collision device according to claim 1, characterized in that: A first pad (415) is fixedly connected to the first spring post (413), and a second pad (24) is fixedly connected to the second spring post (25). Both the first pad (415) and the second pad (24) are made of rubber.
3. The proximity switch anti-collision device according to claim 1, characterized in that: A bonding plate (416) is fixedly installed on the top of the first side block (411). The bonding plate (416) is fixedly connected to the top block (42) by bolts. A first protective plate (412) is fixedly installed on the front end of the first side block (411). A second protective plate (22) is fixedly installed on the end of the second side block (21) near the first protective plate (412). Both the first protective plate (412) and the second protective plate (22) are inclined arc plates. The first protective plate (412) and the second protective plate (22) are used to protect the front end of the proximity switch (1) from impact.
4. The proximity switch anti-collision device according to claim 1, characterized in that: The top block (42) is fixedly mounted with a fixed shaft (45) at one end away from the clamping assembly (41). The top of the second side block (21) is provided with a top groove (26). The fixed shaft (45) penetrates the top groove (26). The second side block (21) swings on the fixed shaft (45) through the top groove (26).
5. The proximity switch anti-collision device according to claim 1, characterized in that: The limiting component (3) includes a limiting shaft (31) fixedly mounted on one side of the first side block (411). A limiting disk (33) is fixedly mounted on one end of the limiting shaft (31) away from the first side block (411). A spring (32) is provided on the side of the limiting disk (33) near the clamping component (41). The spring (32) is sleeved on the limiting shaft (31). A side groove (27) is provided on the second side block (21). The limiting shaft (31) is movably located in the side groove (27). The spring (32) is located between the limiting disk (33) and the second side block (21).
6. The proximity switch anti-collision device according to claim 1, characterized in that: The first side block (411) and the second side block (21) are provided with cylindrical grooves at the ends away from the top block (42). Locking shafts (44) are installed through the cylindrical grooves at the bottom of the first side block (411) and the second side block (21). The locking shafts (44) are fixed to the first side block (411) and the second side block (21) by bolts.
7. The proximity switch anti-collision device according to claim 1, characterized in that: An mounting plate (43) is fixedly installed behind the top block (42), and the mounting plate (43) is used to connect the top block (42) to external devices as a whole.