Quick-release assembly type limit switch

Abstract

The utility model discloses a quick-release assembly type limit switch, which relates to the technical field of limit switches and comprises a mounting device and a limit switch body mounted at the lower end of the mounting device. Clamping grooves are formed in the two sides of the lower end of the mounting equipment, a pressing column is movably mounted at the left end of the limiting switch body, a rapid dismounting and mounting mechanism is arranged at the upper end in the limiting switch body, and a self-locking column is movably mounted at the left end of the limiting switch body. The utility model discloses a quick-release assembly type limit switch. The pressing column pushes the clamping plate, so that the mutual matching state of the upper end of the clamping plate and the clamping groove in the lower end of the installation equipment is released, a clamping block at the left end of the self-locking column moves towards the interior of the self-locking column, the self-locking state of the clamping plate is released, the pressing plate is loosened, a third spring enables the self-locking column to reset, and the third spring in the self-locking column clamps the clamping block into the limiting switch body. Therefore, self-locking of the clamping plate and the installation equipment is achieved, the assembling and disassembling time is greatly shortened, the working efficiency is remarkably improved, and the requirement for the skill level of an operator is lowered.

Description

Technical Field

[0001] This utility model relates to the field of limit switch technology, specifically a quick-release assembly limit switch. Background Technology

[0002] In today's highly automated industrial production environment, limit switches, as key components in control systems, are crucial for ensuring smooth production processes, improving production efficiency, and guaranteeing the safety of equipment and personnel. However, existing limit switches have some significant problems in their use.

[0003] Traditional limit switches typically require multiple complex steps for assembly, consuming a significant amount of time. Furthermore, the high precision required between components during assembly means that even slight deviations can lead to unstable switch performance or even malfunction. Disassembly is even more challenging with current limit switches. Due to their flawed structural design, disassembly often requires damaging parts of the structure or using special tools. This not only increases maintenance costs but can also cause irreversible damage to the switch, shortening its lifespan.

[0004] For example, a limit switch with announcement number CN207651369U belongs to the field of electronic switches. It solves the problem of short life of limit switches caused by severe friction between the nylon hub and the fixed shaft during rotation. The roller has a through hole coaxial with the roller, and a nylon hub coaxial with the through hole is also embedded in the roller. A bearing is set in the inner ring of the nylon hub. The outer wall of the bearing is tightly attached to the inner ring of the nylon hub, and the inner wall of the bearing is fixedly sleeved on the fixed shaft. This utility model greatly reduces the friction between the nylon hub and the fixed shaft by setting a bearing between the nylon hub and the fixed shaft, thus extending the life of the limit switch.

[0005] The aforementioned limit switches are complex to assemble and disassemble, requiring various tools and tedious steps. This not only consumes a significant amount of time and manpower but also presents other problems, such as insufficient buffering and anti-collision mechanisms. When the equipment reaches the limit position, it is prone to strong impacts, which can damage the switch itself and potentially trigger a chain reaction, affecting the stability of the entire production system. Currently, the component connections of limit switches are not robust enough, and under long-term vibration and impact conditions, they are prone to loosening and displacement, leading to a decline in switch performance and even malfunctions, posing serious safety hazards to production. Utility Model Content

[0006] The purpose of this utility model is to provide a quick-release assembly limit switch to solve the problem that the assembly and disassembly methods of the limit switches mentioned in the background are relatively complicated, requiring the use of multiple tools and cumbersome steps to complete the assembly. This not only consumes a lot of time and manpower, but also easily generates a strong impact when the equipment moves to the limit position, which can not only damage the switch itself, but also potentially trigger a chain reaction.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-release assembly limit switch, including an installation device and a limit switch body installed at the lower end of the installation device;

[0008] The installation device has slots on both sides at the lower end, and a roller is provided on the right side of the limit switch body. A pressing column is installed on the left side of the limit switch body, and the left end of the pressing column penetrates the left end of the limit switch body. A quick disassembly and assembly mechanism is provided at the upper part of the inside of the limit switch body, and a self-locking column is installed on the left side of the limit switch body. The self-locking column is installed below the pressing column, and the left end of the pressing column is installed below the right end of the pressing plate.

[0009] A buffer cylinder is fixedly installed on the right end of the limit switch body, and the buffer cylinder is installed at the lower end of the installation equipment. Two buffer cylinders are distributed symmetrically around the limit switch body, and the buffer cylinders are filled with buffer oil. An anti-collision mechanism is provided on the right end of the limit switch body, and a first spring is fixedly installed on the left end of the buffer cylinder. Furthermore, the quick-release mechanism includes a second spring installed on the right end of the self-locking pin, and the right end of the second spring is fixedly installed inside the left end of the limit switch body. A third spring is installed inside the left end of the self-locking pin.

[0010] Furthermore, the third spring is evenly distributed in four parts with the self-locking post as the rotation center, and a locking block is nested inside the left end of the self-locking post, and the locking block is evenly distributed in four parts with the self-locking post as the rotation center.

[0011] Furthermore, a third spring is installed at the lower end of the card block, and the third spring is installed inside the self-locking column. A card plate is installed inside the left end of the limit switch body, and the card plate is "L" shaped. The upper end of the card plate cooperates with the card slot at the lower end of the installation device.

[0012] Furthermore, the card plate has two symmetrically distributed around the limit switch body, and the lower end of the card plate is installed on the right end of the pressing column. A fourth spring is installed on the right end of the card plate, and the right end of the fourth spring is installed inside the left end of the limit switch body.

[0013] Furthermore, the anti-collision mechanism includes a movable plug installed on the right end of the first spring, and the movable plug has a guide hole. The guide holes on the movable plug are evenly distributed in four places with the buffer cylinder as the rotation center. A push rod is fixedly installed on the right end of the movable plug.

[0014] Furthermore, a sealing ring is installed on the right end of the buffer cylinder, and the inner side of the sealing ring is installed on the outer side of the push rod. A contact wheel is rotatably installed on the right end of the push rod, and the contact wheel is flush with the left end of the limit switch body. A fifth spring is installed on the right end of the buffer cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the quick-release assembly limit switch;

[0016] 1. Pressing the column pushes the locking plate, which in turn squeezes the fourth spring, thereby releasing the engagement between the upper end of the locking plate and the lower end of the mounting equipment. This causes the locking block at the left end of the self-locking column to move inward, releasing the self-locking state of the locking plate. Releasing the pressing plate causes the third spring to reset the self-locking column. The third spring inside the self-locking column then locks the locking block inside the limit switch body, thus achieving self-locking between the locking plate and the mounting equipment. The quick-release assembly design not only greatly shortens the assembly and disassembly time and significantly improves work efficiency, but also reduces the skill requirements for operators.

[0017] Furthermore, whether during the installation and commissioning of new equipment or during routine maintenance and troubleshooting, this convenient design enables quick completion of related operations, reduces production downtime, improves production efficiency, greatly enhances work efficiency, reduces operation time, and significantly lowers the skill requirements for operators.

[0018] Furthermore, the ease of assembly and disassembly significantly reduces the cost of training new employees, enabling them to master operating skills more quickly and minimizing errors and losses caused by unfamiliarity with the procedures.

[0019] Finally, stable and reliable performance and convenient operation enhance the user experience, strengthen the company's competitiveness in the market, and provide strong technical support for the company's sustainable development. This helps the company attract more customers, expand its business areas, and achieve long-term profit growth.

[0020] 2. When the limit switch body is subjected to an impact force, the contact wheel rotates and contacts the limit workpiece. The contact wheel pushes the push rod to move to the left, and the push rod in turn pushes the movable plug. The movable plug squeezes the buffer oil inside the buffer cylinder. The buffer oil inside the buffer cylinder flows through the guide hole on the movable plug to buffer. The movable plug squeezes the first spring inside the buffer cylinder to buffer. The fifth spring on the right end of the buffer cylinder also plays a role in buffering again.

[0021] Furthermore, it effectively buffers impact forces, which not only protects the limit switch housing from damage, but more importantly, ensures the normal operation of internal precision components, extends the service life of the equipment, reduces maintenance costs, and minimizes the risk of production interruptions and potential safety accidents caused by equipment damage. Attached Figure Description

[0022] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a half-sectional three-dimensional structural diagram of the installation equipment of this utility model;

[0024] Figure 3 This is a partial cross-sectional view of the limit switch body of this utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the card plate of this utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the self-locking column of this utility model in half section.

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the buffer cylinder of this utility model.

[0028] In the diagram: 1. Installation equipment; 2. Limit switch body; 3. Pressing column; 4. Pressing plate; 5. Self-locking column; 6. Buffer cylinder; 7. First spring; 8. Second spring; 9. Third spring; 10. Locking block; 11. Locking plate; 12. Fourth spring; 13. Movable plug; 14. Push rod; 15. Sealing ring; 16. Contact wheel; 17. Fifth spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a quick-release assembly limit switch, comprising an installation device 1, a limit switch body 2, a pressing column 3, a pressing plate 4, a self-locking column 5, a buffer cylinder 6, a first spring 7, a second spring 8, a third spring 9, a locking block 10, a locking plate 11, a fourth spring 12, a movable plug 13, a push rod 14, a sealing ring 15, a contact wheel 16, and a fifth spring 17.

[0031] Includes installation device 1 and limit switch body 2 installed at the lower end of installation device 1;

[0032] The lower end of the installation device 1 has slots on both sides, and the right side of the limit switch body 2 is equipped with a roller. The left side of the limit switch body 2 is equipped with a pressing column 3, and the left end of the pressing column 3 penetrates the left side of the limit switch body 2. The upper part of the inside of the limit switch body 2 is equipped with a quick disassembly and assembly mechanism, and the left side of the limit switch body 2 is equipped with a self-locking column 5, which is installed below the pressing column 3. The left end of the pressing column 3 is installed below the right end of the pressing plate 4.

[0033] A buffer cylinder 6 is fixedly installed on the right end of the limit switch body 2, and the buffer cylinder 6 is installed at the lower end of the installation device 1. Two buffer cylinders 6 are distributed symmetrically around the limit switch body 2. Buffer oil is installed inside the buffer cylinder 6. An anti-collision mechanism is provided on the right end of the limit switch body 2, and a first spring 7 is fixedly installed on the left end inside the buffer cylinder 6.

[0034] The quick-release mechanism includes a second spring 8 installed at the right end of the self-locking post 5, and the right end of the second spring 8 is fixedly installed inside the left end of the limit switch body 2. A third spring 9 is installed inside the left end of the self-locking post 5. Four third springs 9 are evenly distributed around the self-locking post 5 as the rotation center. A locking block 10 is nested inside the left end of the self-locking post 5, and four locking blocks 10 are evenly distributed around the self-locking post 5 as the rotation center.

[0035] A third spring 9 is installed at the lower end of the locking block 10, and the third spring 9 is installed inside the self-locking post 5. A locking plate 11 is installed inside the left end of the limit switch body 2, and the locking plate 11 is "L"-shaped. The upper end of the locking plate 11 cooperates with the locking groove at the lower end of the mounting device 1. There are two locking plates 11 distributed symmetrically around the limit switch body 2, and the lower end of the locking plate 11 is installed at the right end of the pressing post 3. A fourth spring 12 is installed at the right end of the locking plate 11, and the right end of the fourth spring 12 is installed inside the left end of the limit switch body 2.

[0036] When the user presses the pressing post 3 inward, the upper end of the pressing post 3 moves inward, pushing the locking plate 11. The locking plate 11 compresses the fourth spring 12, thereby releasing the mutual engagement between the upper end of the locking plate 11 and the lower end of the mounting device 1. At the same time, the self-locking post 5 also moves inward, compressing the third spring 9, causing the locking block 10 at the left end of the self-locking post 5 to move inward. Then, the locking plate 11 compresses the second spring 8 inward, releasing the self-locking state of the locking plate 11. When the upper end of the locking plate 11 is locked with the lower end of the mounting device 1, the pressing plate 4 is released. At this time, the third spring 9 resets the self-locking post 5. The third spring 9 inside the self-locking post 5 locks the locking block 10 inside the limit switch body 2, thereby achieving self-locking between the locking plate 11 and the mounting device 1.

[0037] The anti-collision mechanism includes a movable plug 13 mounted on the right end of the first spring 7, with guide holes on the movable plug 13. Four guide holes on the movable plug 13 are evenly distributed around the buffer cylinder 6 as the rotation center. A push rod 14 is fixedly mounted on the right end of the movable plug 13. A sealing ring 15 is mounted on the right end of the buffer cylinder 6, with the inner side of the sealing ring 15 mounted on the outer side of the push rod 14. A contact wheel 16 is rotatably mounted on the right end of the push rod 14, and the contact wheel 16 is flush with the left end of the limit switch body 2. A fifth spring 17 is mounted on the right end of the buffer cylinder 6.

[0038] When the limit switch body 2 is subjected to an impact force, the contact wheel 16 rotates and contacts the limit workpiece, pushing the push rod 14 to move to the left. The push rod 14 then pushes the movable plug 13, which compresses the buffer oil inside the buffer cylinder 6. The buffer oil inside the buffer cylinder 6 flows through the guide hole on the movable plug 13 for buffering. At the same time, the movable plug 13 compresses the first spring 7 inside the buffer cylinder 6 for buffering. In addition, the fifth spring 17 at the right end of the buffer cylinder 6 also plays a role in further buffering.

[0039] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-release assembly limit switch, comprising an installation device (1) and a limit switch body (2) installed at the lower end of the installation device (1). Its features are: The installation device (1) has slots on both sides at the lower end, and the right end of the limit switch body (2) is provided with a roller, and the left end of the limit switch body (2) is provided with a pressing column (3), and the left end of the pressing column (3) penetrates the left end of the limit switch body (2). The upper end of the limit switch body (2) is provided with a quick disassembly and assembly mechanism, and the left end of the limit switch body (2) is provided with a self-locking column (5), and the self-locking column (5) is installed below the pressing column (3), and the left end of the pressing column (3) is installed below the right end of the pressing plate (4). A buffer cylinder (6) is fixedly installed on the right end of the limit switch body (2), and the buffer cylinder (6) is installed at the lower end of the installation equipment (1). Two buffer cylinders (6) are distributed with the limit switch body (2) as the center of symmetry. Buffer oil is provided inside the buffer cylinder (6). An anti-collision mechanism is provided on the right end of the limit switch body (2), and a first spring (7) is fixedly installed on the left end inside the buffer cylinder (6).

2. The quick-release assembly limit switch according to claim 1, characterized in that: The quick-release mechanism includes a second spring (8) installed at the right end of the self-locking post (5), and the right end of the second spring (8) is fixedly installed inside the left end of the limit switch body (2), and a third spring (9) is installed inside the left end of the self-locking post (5).

3. A quick-release assembly limit switch according to claim 2, characterized in that: The third spring (9) has four evenly distributed around the self-locking post (5) as the rotation center, and a locking block (10) is nested inside the left end of the self-locking post (5), and the locking block (10) has four evenly distributed around the self-locking post (5) as the rotation center.

4. A quick-release assembly limit switch according to claim 3, characterized in that: The lower end of the card block (10) is equipped with a third spring (9), and the third spring (9) is installed inside the self-locking column (5). The card plate (11) is installed inside the left end of the limit switch body (2), and the card plate (11) is "L" shaped. The upper end of the card plate (11) cooperates with the card slot at the lower end of the installation device (1).

5. A quick-release assembly limit switch according to claim 4, characterized in that: The card plate (11) has two distributed with the limit switch body (2) as the symmetrical center, and the lower end of the card plate (11) is installed on the right end of the pressing column (3), and a fourth spring (12) is installed on the right end of the card plate (11), and the right end of the fourth spring (12) is installed inside the left end of the limit switch body (2).

6. A quick-release assembly limit switch according to claim 1, characterized in that: The anti-collision mechanism includes a movable plug (13) installed on the right end of the first spring (7), and a guide hole is provided on the movable plug (13). The guide holes on the movable plug (13) are evenly distributed with the buffer cylinder (6) as the rotation center. A push rod (14) is fixedly installed on the right end of the movable plug (13).

7. A quick-release assembly limit switch according to claim 6, characterized in that: The buffer cylinder (6) is equipped with a sealing ring (15) on the right end, and the inner side of the sealing ring (15) is installed on the outer side of the push rod (14). The push rod (14) is rotatably equipped with a contact wheel (16) on the right end, and the contact wheel (16) is flush with the left end of the limit switch body (2). The buffer cylinder (6) is equipped with a fifth spring (17).

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