An adjustable angle limit switch

Abstract

This utility model relates to the field of limit switch technology and discloses an adjustable angle limit switch, including a switch body. A fixing plate is provided at the bottom of the switch body, and an angle adjustment component is provided on one side of the top of the fixing plate. The angle adjustment component includes a connecting mechanism and an adjusting mechanism. The adjusting mechanism includes a fixing box, inside which is a threaded rod. A knob is fixedly connected to one end of the threaded rod, and a slider is sleeved on the outer wall of the threaded rod. Connecting rods are fixedly connected to both sides of the slider, and the connecting mechanism is connected to the ends of the connecting rods. In this utility model, when the angle of the switch body needs to be adjusted, the operator rotates the knob, causing the threaded rod to rotate. Under the action of the thread, the slider moves along the slide rail, and the connecting rods on both sides drive the connecting arms to move the connecting seat, causing the connecting plate to deflect as a whole. This achieves a rapid angle adjustment effect, solving the problem of complex and time-consuming traditional angle adjustment and improving the flexibility of equipment use.

Description

Technical Field

[0001] This utility model relates to the field of limit switch technology, and in particular to an adjustable angle limit switch. Background Technology

[0002] Limit switches, as key components for controlling the travel and position of mechanical equipment, are widely used in industrial automation, machine tool processing, and logistics transportation. As mechanical equipment becomes increasingly diversified and complex, higher demands are placed on the installation flexibility and ease of angle adjustment of limit switches. Adjustable-angle limit switches have emerged to meet this need. These switches can adjust their trigger angle according to the equipment's operating trajectory and installation environment, enabling precise control and gradually becoming an important technological direction for improving equipment performance and applicability.

[0003] Currently, most limit switches on the market that require angle adjustment use a mechanical structure consisting of a fixed bracket and bolts. These limit switches use multiple pre-drilled mounting holes on the bracket, with bolts passing through different holes to secure the switch and thus change its installation angle. The underlying technology relies on the fixed relative positions of the mechanical components, with angle adjustment achieved manually.

[0004] However, existing adjustable angle limit switches have shortcomings in practical use. Their angle adjustment and installation process is relatively complex and cumbersome. Adjusting by selecting the hole position requires a lot of time for repeated debugging and fixing. The bolt tightening method during installation also increases the difficulty of disassembly, which is not conducive to the rapid installation and subsequent maintenance of equipment. This not only reduces the efficiency of equipment installation, but also limits the flexible application of limit switches in complex and variable working conditions. Therefore, an adjustable angle limit switch is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable angle limit switch, which aims to improve the problem of complex and time-consuming switch angle adjustment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable angle limit switch includes a switch body, a fixing plate is provided at the bottom of the switch body, and an angle adjustment component is provided on one side of the top of the fixing plate;

[0008] The angle adjustment assembly includes a connecting mechanism and an adjusting mechanism. The adjusting mechanism includes a fixed box, the bottom of which is fixedly connected to the top of the fixed plate. Slide grooves are provided on both sides of the outer wall of the fixed box. A threaded rod is provided inside the fixed box. A knob is fixedly connected to one end of the threaded rod, located on the outer wall of the fixed box. The other end of the threaded rod is rotatably connected to the inner wall of the fixed box. A slider is fitted onto the outer wall of the threaded rod. Connecting rods are fixedly connected to both sides of the slider. The outer walls of the connecting rods on both sides are slidably connected to the slide grooves. Symmetrical slide rails are fixedly connected to the bottom of the inner wall of the fixed box. The bottom of the slider is slidably connected to the top of the slide rails. The connecting mechanism is connected to the end of the connecting rod.

[0009] As a further description of the above technical solution:

[0010] The connecting mechanism includes a connecting plate, the bottom of the switch body is slidably connected to the top of the connecting plate, and the bottom of the connecting plate is provided with symmetrical connecting seats.

[0011] As a further description of the above technical solution:

[0012] The connecting seat on one side is rotatably connected to fixed seats on both the left and right sides, and the bottom of the fixed seats is fixedly connected to the top of the fixed plate.

[0013] As a further description of the above technical solution:

[0014] On the other side, both the left and right sides of the connecting seat are rotatably connected to connecting arms, and the other end of the connecting arm is rotatably connected to the outer wall of the connecting rod.

[0015] As a further description of the above technical solution:

[0016] The switch body has locking posts slidably connected to all four corners inside, and the bottom outer wall of the locking posts is slidably connected to the inside of the connecting plate.

[0017] As a further description of the above technical solution:

[0018] Multiple limiting balls are slidably connected to the bottom of the locking post, and the limiting balls are distributed in a circumferential shape. An inner post is slidably connected to the inner wall of the locking post, and a receiving groove is opened at the bottom of the outer wall of the inner post.

[0019] As a further description of the above technical solution:

[0020] A rotating handle is fixedly connected to the top of the inner column, and the rotating handle is located at the top of the locking column. A movable plate is fixedly connected to the upper part of the outer wall of the inner column. A limit plate is provided above the movable plate. The outer wall of the limit plate is fixedly connected to the inner wall of the locking column. A hole with the same cross-section as the movable plate is opened inside the limit plate.

[0021] As a further description of the above technical solution:

[0022] A reset spring is provided below the movable plate. One end of the reset spring is fixedly connected to the bottom of the movable plate, and the other end is slidably connected to the inner wall of the locking post.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, when it is necessary to adjust the angle of the switch body, the operator rotates the knob on the side wall of the fixing box, which drives the threaded rod to rotate. Under the action of the thread, the slider moves longitudinally along the slide rail, and the connecting rods on both sides drive the connecting arm to move the connecting seat. The connecting plate deflects as a whole, achieving the effect of rapid angle adjustment. This solves the problem of complex and time-consuming traditional angle adjustment and improves the flexibility of equipment use.

[0025] 2. In this utility model, when using the adjustable angle limit switch, the operator places the switch body above the connecting plate, aligns the hole, inserts the locking pin, presses and rotates the handle to make the movable plate lock under the limit plate, and at the same time the reset spring is compressed, the inner column is displaced and the limit ball extends to the groove of the connecting plate to complete the quick fixation, which solves the problem of cumbersome and time-consuming traditional installation and disassembly, and improves the equipment installation efficiency and maintenance convenience. Attached Figure Description

[0026] Figure 1 This is a perspective view of an adjustable angle limit switch proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the fixing box structure of an adjustable angle limit switch proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the fixing box structure of an adjustable angle limit switch proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the threaded rod structure of an adjustable angle limit switch proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the locking post structure of an adjustable angle limit switch proposed in this utility model.

[0031] Legend:

[0032] 1. Switch body; 2. Fixing plate; 3. Fixing box; 4. Connecting plate; 5. Fixing base; 6. Connecting base; 7. Slide rail; 8. Slider; 9. Connecting rod; 10. Slide groove; 11. Connecting arm; 12. Threaded rod; 13. Knob; 14. Locking post; 15. Limit ball; 16. Inner post; 17. Receiving groove; 18. Handle; 19. Movable plate; 20. Limiting plate; 21. Return spring. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-3 The present invention provides an embodiment of an adjustable angle limit switch, comprising a switch body 1. The adjustable angle limit switch uses the switch body 1 as the core functional component. The switch body 1 is prior art and will not be described in detail in this article. A fixing plate 2 is fixedly connected to the bottom of the switch body 1 by bolts. The fixing plate 2 is used to provide an installation base for the angle adjustment component and enhance the stability of the entire switch structure.

[0035] The angle adjustment assembly includes a connecting mechanism and an adjusting mechanism. The adjusting mechanism is based on a fixed box 3 as its basic frame, with the bottom of the fixed box 3 securely fixed to the top of the fixed plate 2 by bolts. Slide grooves 10 are milled on both sides of the outer wall of the fixed box 3, providing sliding guidance for the connecting rod 9. The threaded rod 12 inside the fixed box 3 is the core transmission component for angle adjustment. The threaded rod 12 has an M12×1.5 thread specification. One end of the threaded rod 12 is welded to a knob 13, which is injection molded from engineering plastic and has anti-slip textures on its surface. It is located on the outer wall of the fixed box 3 for easy operation. The other end is rotatably connected to the inner wall of the fixed box 3 via a bearing to ensure smooth rotation. A slider 8 is fitted onto the outer wall of the threaded rod 12. The slider 8 is injection molded from engineering plastic and has a copper nut embedded inside, forming a threaded engagement with the threaded rod 12. Connecting rods 9 are welded to the left and right sides of the slider 8, with the outer wall of the connecting rod 9 slidingly engaging with the inner wall of the slide groove 10. The bottom of the inner wall of the fixed box 3 is fixedly connected with left and right symmetrical slide rails 7 by bolts. The slide rails 7 are linear guide rails. The bottom of the slider 8 is equipped with a matching groove, which can slide stably on the top of the slide rails 7 to limit the movement direction of the slider 8 and ensure that it moves along a straight line.

[0036] The connecting mechanism uses the connecting plate 4 as the key connecting component. The connecting plate 4 is made of aluminum alloy plate. The connecting plate 4 is used to install the switch body 1 and provide support. The bottom of the switch body 1 and the top of the connecting plate 4 form a sliding connection, which is convenient for installation and disassembly. The bottom of the connecting plate 4 is provided with left and right symmetrical connecting seats 6. The left and right sides of one connecting seat 6 are rotatably connected to the fixing seat 5 by the pin shaft. The bottom of the fixing seat 5 is fixedly connected to the top of the fixing plate 2 by the bolt, which is used to provide a rotation fulcrum for the connecting plate 4. The left and right sides of the other connecting seat 6 are rotatably connected to the connecting arm 11 by the pin shaft. The other end of the connecting arm 11 is rotatably connected to the outer wall of the connecting rod 9 by the pin shaft, which is used to transmit the displacement power of the slider 8 and realize the angle adjustment of the connecting plate 4.

[0037] Reference Figure 4 and Figure 5 The four corners of the switch body 1 are precision-machined to form guide holes for sliding connection with the locking pin 14. The interior of the connecting plate 4 is drilled and milled to create slots for mates with the limit balls 15. The bottom outer wall of the locking pin 14 slides into the guide holes inside the connecting plate 4 to connect and fix the switch body 1 to the connecting plate 4. The bottom of the locking pin 14 is drilled and milled to create installation space for the limit balls 15. Multiple limit balls 15 are arranged in a circumferential shape and are used to lock into the slots inside the connecting plate 4. The inner wall of the locking pin 14 is precision-machined to form a sliding channel for the inner pin 16. The bottom of the outer wall of the inner pin 16 is milled to create a receiving groove 17 to accommodate and limit the movement range of the limit balls 15. A rotating handle 18 is fixedly connected to the top of the column 16 by welding. The rotating handle 18 is injection molded from engineering plastic and has anti-slip texture on the surface. It is located on the top of the locking column 14 for easy operation by the staff. A movable plate 19 is fixedly connected to the upper part of the outer wall of the inner column 16 by welding. The movable plate 19 is used to cooperate with the limiting plate 20 to fix the locking column 14. A limiting plate 20 is set above the movable plate 19. The limiting plate 20 is fixed to the inner wall of the locking column 14 by bolts. The limiting plate 20 has a through hole with the same cross-section as the movable plate 19 to limit the movement trajectory of the movable plate 19. A return spring 21 is set below the movable plate 19. One end of the return spring 21 is welded to the bottom of the movable plate 19, and the other end forms a sliding fit with the spring seat preset on the inner wall of the locking column 14 to provide return elasticity for the movable plate 19.

[0038] Working principle: When using this adjustable angle limit switch, the operator first places the switch body 1 on top of the connecting plate 4 and aligns the holes of the switch body 1 with the holes of the connecting plate 4. Then, the locking pin 14 is inserted, and the handle 18 at the top of the locking pin 14 is pressed down and rotated, so that the inner pin 16 drives the movable plate 19 through the limiting plate 20. Then, the handle 18 is rotated again, so that the movable plate 19 rotates below the limiting plate 20. At this time, the movable plate 19 is stuck below the limiting plate 20, and the return spring 21 is always in a compressed state. The displacement of the inner pin 16 causes the receiving groove 17 to move downward. The limiting ball 15 inside the receiving groove 17 is squeezed by the outer wall of the inner pin 16 and then extends outward into the groove inside the connecting plate 4, thereby completing the quick fixation of the switch body 1, thus achieving the effect of convenient and quick installation and disassembly of the switch body 1.

[0039] When the angle of the switch body 1 needs to be adjusted, the operator rotates the knob 13 on the side wall of the fixing box 3. The rotation of the knob 13 drives the threaded rod 12 to rotate. Under the action of the thread, the rotation of the threaded rod 12 causes the slider 8 to move longitudinally under the limit of the slide rail 7. The displacement of the slider 8 causes the connecting rods 9 on both sides to move under the restriction of the slide groove 10. At the same time, the displacement of the connecting rods 9 causes one end of the connecting arm 11 to also move, which in turn causes the connecting seat 6 connected to the other end of the connecting arm 11 to move, causing the connecting plate 4 to deflect as a whole, thereby achieving the effect of quickly adjusting the angle of the switch body 1.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable angle limit switch, comprising a switch body (1), characterized in that: The bottom of the switch body (1) is provided with a fixing plate (2), and an angle adjustment component is provided on one side of the top of the fixing plate (2); The angle adjustment assembly includes a connecting mechanism and an adjustment mechanism. The adjustment mechanism includes a fixed box (3). The bottom of the fixed box (3) is fixedly connected to the top of the fixed plate (2). Slide grooves (10) are provided on both sides of the outer wall of the fixed box (3). A threaded rod (12) is provided inside the fixed box (3). A knob (13) is fixedly connected to one end of the threaded rod (12). The knob (13) is located on the outer wall of the fixed box (3). The other end of the threaded rod (12) is rotatably connected to the inner wall of the fixed box (3). A slider (8) is sleeved on the outer wall of the threaded rod (12). Connecting rods (9) are fixedly connected to both sides of the slider (8). The outer walls of the connecting rods (9) on both sides are slidably connected to the inside of the slide grooves (10). A left-right symmetrical slide rail (7) is fixedly connected to the bottom of the inner wall of the fixed box (3). The bottom of the slider (8) is slidably connected to the top of the slide rail (7). The connecting mechanism is connected to the end of the connecting rod (9).

2. The adjustable angle limit switch according to claim 1, characterized in that: The connecting mechanism includes a connecting plate (4), the bottom of the switch body (1) is slidably connected to the top of the connecting plate (4), and the bottom of the connecting plate (4) is provided with left and right symmetrical connecting seats (6).

3. The adjustable angle limit switch according to claim 2, characterized in that: The connecting seat (6) on one side is rotatably connected to the fixing seat (5) on both the left and right sides, and the bottom of the fixing seat (5) is fixedly connected to the top of the fixing plate (2).

4. The adjustable angle limit switch according to claim 3, characterized in that: On the other side, the connecting seat (6) is rotatably connected to both the left and right sides with connecting arms (11), and the other end of the connecting arm (11) is rotatably connected to the outer wall of the connecting rod (9).

5. The adjustable angle limit switch according to claim 1, characterized in that: The four corners of the switch body (1) are slidably connected to locking posts (14), and the bottom outer wall of the locking posts (14) is slidably connected to the inside of the connecting plate (4).

6. The adjustable angle limit switch according to claim 5, characterized in that: Multiple limiting balls (15) are slidably connected to the bottom of the locking post (14). The limiting balls (15) are distributed in a circular shape. An inner post (16) is slidably connected to the inner wall of the locking post (14). A receiving groove (17) is opened at the bottom of the outer wall of the inner post (16).

7. The adjustable angle limit switch according to claim 6, characterized in that: A rotating handle (18) is fixedly connected to the top of the inner column (16). The rotating handle (18) is located at the top of the locking column (14). A movable plate (19) is fixedly connected to the upper part of the outer wall of the inner column (16). A limiting plate (20) is provided above the movable plate (19). The outer wall of the limiting plate (20) is fixedly connected to the inner wall of the locking column (14). A hole with the same cross-section as the movable plate (19) is opened inside the limiting plate (20).

8. The adjustable angle limit switch according to claim 7, characterized in that: A reset spring (21) is provided below the movable plate (19). One end of the reset spring (21) is fixedly connected to the bottom of the movable plate (19), and the other end of the reset spring (21) is slidably connected to the inner wall of the locking post (14).

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