A self-weight proximity switch limit device

Abstract

This utility model discloses a self-weight proximity switch limiting device, including a base, a movable component, and a proximity switch assembly. The base is used to fix relative to the stationary part of the target device. The movable component includes a first bracket, a weight trolley, and a traction rope. The first bracket, connected to the base, has a vertical slide rail. The weight trolley is movably positioned on the vertical slide rail. One end of the traction rope is connected to the weight trolley and the traction rope is connected to the movable part of the target device. The proximity switch assembly includes a second bracket and at least two proximity switches installed at intervals along the height direction on the second bracket. The second bracket is connected to the base. The first bracket has a through slot located between the proximity switches and the weight trolley, so that the weight trolley becomes the detection target of the proximity switches. The above solution avoids the adverse effects of displacement of the movable part of the target device when the target device is impacted, thus improving the stability of the height position measurement of the movable part of the target device.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and in particular to a self-weight proximity switch limit device. Background Technology

[0002] In automated production, proximity switches are key components for controlling the movement and position of equipment and facilities. Typically, a proximity switch is fixed to a stationary part of the equipment. When a moving part of the equipment enters the effective sensing distance range of the proximity switch, the switch generates a feedback signal.

[0003] However, in actual production, moving parts of the equipment may be impacted, causing them to shift position when approaching the proximity switch. This makes the moving parts highly susceptible to colliding with the proximity switch, leading to damage and signal failure. Conversely, if the shifted moving parts are relatively far from the proximity switch, signal failure will also occur. Utility Model Content

[0004] To address the aforementioned issues, this application provides a gravity-based proximity switch limit device.

[0005] This application provides a gravity-type proximity switch limiting device, including a base, a movable component, and a proximity switch assembly. The base is used to fix relative to the stationary part of the target device. The movable component includes a first bracket, a weight trolley, and a traction rope. The first bracket is connected to the base and has a vertical slide rail inside. The weight trolley is movably disposed on the vertical slide rail. One end of the traction rope is connected to the weight trolley and is configured to connect to the movable part of the target device. The proximity switch assembly includes a second bracket and at least two proximity switches. The second bracket is connected to the base, and at least two proximity switches are installed on the second bracket at intervals along the height direction. The first bracket has a through groove located between the proximity switches and the weight trolley so that the weight trolley becomes the detection target of the proximity switches.

[0006] In some embodiments, the first support includes a first grooved support and a second grooved support, which are distributed at intervals and are both connected to the base. A through groove is formed between the side plates of the first grooved support and the side plates of the second grooved support. The groove openings of the first grooved support and the groove openings of the second grooved support are opposite to each other, so as to form a vertical slide between the inner groove wall of the first grooved support and the inner groove wall of the second grooved support. The vertical slide is connected to the through groove.

[0007] In some embodiments, the movable component further includes a top cover mounted on top of the first grooved bracket and the second grooved bracket. The top cover has a through hole that communicates with and is located above the vertical slide. A traction rope passes through the through hole.

[0008] In some implementations, the traction rope is a steel wire rope.

[0009] In some embodiments, the second support includes:

[0010] The two support plates are spaced apart from the first bracket, the two support plates are spaced apart from each other, and the two support plates are fixedly connected to the base.

[0011] At least two isolation blocks are connected between the two support plates and the first bracket;

[0012] The proximity switch is mounted on the third bracket, which is connected between the two support plates.

[0013] In some implementations, the third bracket is bolted between the two support plates, allowing for adjustment of the height of the third bracket on the second bracket.

[0014] In some embodiments, the third support has:

[0015] Mounting hole; the proximity switch is mounted in the mounting hole.

[0016] Two side slots are located on opposite sides of the mounting hole, and the support plate is movably inserted into the side slots;

[0017] At least two threaded holes are located on opposite sides of the mounting hole and are connected to two side grooves respectively. The threaded holes are used with mounting bolts to tighten the support plate that passes through the side grooves.

[0018] In some embodiments, the second support also includes a top end plate connected between the tops of the two support plates.

[0019] In some implementations, the top endplate is integrally formed with the two support plates.

[0020] In some implementations, the base has screw holes for use with bolts to connect the base to the stationary part of the target device.

[0021] The beneficial effects of this application are as follows: It provides a self-weight proximity switch limiting device, including a base, a movable component, and a proximity switch component. The vertical slide of the first bracket of the movable component limits the movement trajectory of the heavy trolley. A traction rope establishes a connection constraint between the heavy trolley and the moving part of the target device. The traction rope has the characteristic of constant length, so that the height position of the heavy trolley can reflect the height position of the moving part of the target device. The proximity switch detects the height position of the heavy trolley. When the heavy trolley moves to the height position of the proximity switch, a position signal feedback is generated, thereby realizing the measurement and determination of the height position of the moving part of the target device. By applying the solution of this application, the traction rope realizes a flexible connection between the moving part of the target device and the heavy trolley. The relative position of the proximity switch and the vertical slide remains unchanged, avoiding the adverse effects of displacement of the moving part of the target device when the target device is impacted, and improving the stability of the height position measurement of the moving part of the target device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model.

[0023] Figure 1 A schematic diagram of the overall structure of a self-weight proximity switch limit device provided in this application;

[0024] Figure 2 A schematic diagram of a self-weight proximity switch limit device provided in this application;

[0025] Figure 3 This is a schematic diagram of the cross-section of a self-weight proximity switch limit device provided in this application.

[0026] Figure description: 1-Base, 2-Modible component, 200-First bracket, 200a-Through groove, 200b-Vertical slide rail, 201-First groove-shaped bracket, 202-Second groove-shaped bracket, 203-Top cover, 204-Traction rope, 205-Heavy trolley, 3-Proximity switch assembly, 300-Second bracket, 301-Isolation block, 302-Support plate, 303-Third bracket, 303a-Mounting hole, 303b-Side groove, 303c-Threaded hole, 304-Bolt, 305-Proximity switch, 306-Top end plate. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0029] Please refer to Figures 1 to 3 This application provides a gravity-type proximity switch limit device, including a base 1, a movable component 2, and a proximity switch component 3. This application is used to detect the height position of a moving part of a target device to determine the height position of the moving part.

[0030] The target equipment includes a stationary part and a moving part. The stationary part is relatively fixed, while the moving part is movable relative to the stationary part. In actual production, for example, to determine the position of a slab on the conveyor rollers, an angle steel that can be raised and lowered between two adjacent conveyor rollers is needed to determine whether the slab is in a preset position. In this application, the base 1 is fixed relative to the stationary part of the target equipment, and the movable component 2 is connected to the moving part of the target equipment.

[0031] The base 1 is used to fix relative to the stationary part of the target equipment. The movable component 2 includes a traction rope 204, which is configured to be connected to the movable part of the target equipment. The movable component 2 also includes a first bracket 200 and a heavy load trolley 205. The first bracket 200 is connected to the base 1 and has a vertical slide rail 200b inside. The heavy load trolley 205 is movably disposed on the vertical slide rail 200b, and one end of the traction rope 204 is connected to the heavy load trolley 205. The proximity switch assembly 3 includes a second bracket 300 and at least two proximity switches 305. The second bracket 300 is connected to the base 1. The at least two proximity switches 305 are installed on the second bracket 300 at intervals along the height direction. The first bracket 200 has a through groove 200a located between the proximity switch 305 and the heavy object trolley 205. The through groove 200a allows the proximity switch 305 and the heavy object trolley 205 to pass through without obstruction. The heavy object trolley 205 becomes the detection target of the proximity switch 305. The proximity switch 305 is used to detect the height position of the heavy object trolley 205.

[0032] In this application, the vertical slide 200b of the first support 200 of the movable component 2 defines the movement trajectory of the heavy trolley 205. The traction rope 204 establishes a connection constraint between the heavy trolley 205 and the moving part of the target equipment. The traction rope 204 has the characteristic of constant length, so that the height position of the heavy trolley 205 can reflect the height position of the moving part of the target equipment. The height position of the heavy trolley 205 is detected by the proximity switch 305. When the heavy trolley 205 moves to the height position of the proximity switch 305, a position signal feedback is generated, thereby realizing the measurement and determination of the height position of the moving part of the target equipment.

[0033] By applying the solution of this application, the moving parts of the target equipment and the heavy trolley 205 are flexibly connected by the traction rope 204. The relative position of the proximity switch 305 and the vertical slide 200b remains unchanged, avoiding the adverse effects of the displacement of the moving parts of the target equipment when the target equipment is hit on the measurement, and improving the stability of the height position measurement of the moving parts of the target equipment.

[0034] In some implementation methods, please refer to the reference. Figure 2 and Figure 3 The first support 200 includes a first groove-shaped support 201 and a second groove-shaped support 202. The groove shape gives the support an opening. The support has side plates located on both sides of the opening and a bottom plate opposite to the opening, with the bottom plate connected to the side plates. The first groove-shaped support 201 and the second groove-shaped support 202 are distributed at intervals and are both connected to the base 1, maintaining the relative distribution of the openings of the first groove-shaped support 201 and the second groove-shaped support 202. This forms a vertical slide 200b between the inner groove walls of the first groove-shaped support 201 and the second groove-shaped support 202. Furthermore, a through groove 200a is located between the side plates of the first groove-shaped support 201 and the second groove-shaped support 202, allowing the vertical slide 200b to communicate with the through groove 200a.

[0035] In some implementation methods, please refer to the reference. Figure 1 and Figure 2 The active component 2 also includes a top cover 203, which is installed on the top of the first groove bracket 201 and the second groove bracket 202. The top cover 203 has a through hole for the traction rope 204 to pass through. Therefore, the through hole needs to be connected to the vertical slide rail 200b and the through hole needs to be located above the vertical slide rail 200b.

[0036] In this application, the traction rope 204 needs to have a constant length. In some embodiments, the traction rope 204 is a steel wire rope.

[0037] In some implementation methods, please refer to the reference. Figure 1 and Figure 2 The second bracket 300 includes two support plates 302 and at least two isolation blocks 301. Both support plates 302 are spaced apart from the first bracket 200 and are fixedly connected to the base 1. The at least two isolation blocks 301 connect the two support plates 302 to the first bracket 200. The proximity switch 305 is mounted on a third bracket 303, which is connected between the two support plates 302. By setting the isolation blocks 301, a distance equal to the thickness of one isolation block 301 is created between the support plates 302 and the first bracket 200, providing sufficient installation space for the proximity switch 305.

[0038] Based on the above explanation that "in order to determine the position of the slab on the conveyor rollers, an angle steel that can be raised and lowered between two adjacent conveyor rollers is needed to determine whether the slab is in the preset position," at least two proximity switches 305 respectively detect whether the heavy trolley 205 is in a high position or a low position. When the heavy trolley 205 is in a high position, it means that the moving part of the target equipment is in a high position, and the moving part of the target equipment corresponds to the angle steel, which will block the forward passage of the slab. When the heavy trolley 205 is in a low position, it means that the moving part of the target equipment is in a low position, and the angle steel moves down between the two conveyor rollers, and the angle steel no longer blocks the forward passage of the slab.

[0039] In some embodiments, the third bracket 303 is abutted between the two support plates 302 by bolts 304. By selecting the installation method of bolts 304 abutting, the height position of the third bracket 303 on the second bracket 300 can be adjusted, thereby adjusting the height position of the proximity switch 305. Adaptive adjustments can be made for different target devices, improving the applicability of the solution in this application.

[0040] In some implementation methods, please refer to the reference. Figure 2 and Figure 3 The third bracket 303 has a mounting hole 303a, two side grooves 303b and at least two threaded holes 303c. The proximity switch 305 is mounted in the mounting hole 303a. The two side grooves 303b are located on opposite sides of the mounting hole 303a. The support plate 302 is movably inserted through the side grooves 303b. The at least two threaded holes 303c are located on opposite sides of the mounting hole 303a and are connected to the two side grooves 303b respectively. The threaded holes 303c cooperate with the mounting bolts 304 to make the bolts 304 abut against the support plate 302 inserted through the side grooves 303b.

[0041] In some implementation methods, please refer to Figure 2The second bracket 300 also includes a top end plate 306, which is connected between the tops of the two support plates 302. The top end plate 306 prevents the third bracket 303 containing the proximity switch 305 from detaching from the second bracket 300. However, this structure makes disassembling the third bracket 303 containing the proximity switch 305 inconvenient. In daily production, the inventors have applied a technical solution including the top end plate 306, ensuring that the proximity switch 305 does not change its height position after installation.

[0042] Regarding the top endplate 306, please refer to... Figure 2 The top blocking plate 306 and the two support plates 302 can be integrally formed, reducing the number of parts in this application.

[0043] In some embodiments, the base 1 has a screw hole, which is shown in the figure for illustration. The screw hole is used to cooperate with the bolt 304 to install the base 1 onto the stationary part of the target device.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A self-weight proximity switch limit device, characterized in that, include: The base is used to fix the target device relative to its stationary parts. The movable component includes a first support, a weight trolley, and a traction rope. The first support is connected to the base and has a vertical slide rail inside. The weight trolley is movably disposed on the vertical slide rail. One end of the traction rope is connected to the weight trolley, and the traction rope is configured to connect to the movable part of the target device. A proximity switch assembly includes a second bracket and at least two proximity switches, the second bracket being connected to the base, and the at least two proximity switches being mounted on the second bracket at intervals along the height direction; The first bracket has a through slot located between the proximity switch and the heavy object trolley, so that the heavy object trolley becomes the detection target of the proximity switch.

2. The self-weight proximity switch limit device as described in claim 1, characterized in that, The first support includes: The first and second slotted brackets are distributed at relative intervals and are both connected to the base. The through slot is formed between the side plates of the first and second slotted brackets. The slot openings of the first and second slotted brackets are opposite to each other, so as to form the vertical slide between the inner wall of the first and second slotted brackets. The vertical slide is connected to the through slot.

3. The self-weight proximity switch limit device as described in claim 2, characterized in that, The activity component also includes: A top cover is installed on top of the first grooved bracket and the second grooved bracket. The top cover has a through hole that communicates with the vertical slide and is located above the vertical slide. The traction rope passes through the through hole.

4. The self-weight proximity switch limit device as described in claim 1, characterized in that, The traction rope is a steel wire rope.

5. The self-weight proximity switch limit device as described in any one of claims 1-4, characterized in that, The second support includes: Two support plates are spaced apart from the first bracket, the two support plates are spaced apart from each other, and the two support plates are fixedly connected to the base; At least two isolation blocks are connected between the two support plates and the first bracket; The proximity switch is mounted on a third bracket, which is connected between the two support plates.

6. The self-weight proximity switch limit device as described in claim 5, characterized in that, The third bracket is bolted between the two support plates, and its height position on the second bracket can be adjusted.

7. The self-weight proximity switch limit device as described in claim 6, characterized in that, The third support has the following features: The proximity switch is mounted in the mounting hole. Two side grooves are located on opposite sides of the mounting hole, and the support plate is movably inserted through the side grooves; At least two threaded holes are located on opposite sides of the mounting hole and are connected to the two side grooves respectively. The threaded holes are used to mount bolts to tighten the support plate that passes through the side grooves.

8. The self-weight proximity switch limit device as described in claim 5, characterized in that, The second support also includes: A top endplate is connected between the tops of the two support plates.

9. The self-weight proximity switch limit device as described in claim 8, characterized in that, The top end plate is integrally formed with the two support plates.

10. The self-weight proximity switch limit device as described in claim 1, characterized in that, The base has a screw hole, which is used to connect the base to the stationary part of the target device in conjunction with a bolt.

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