A mine position sensor

Abstract

This utility model relates to the field of mining sensor technology, and in particular to a mining position sensor, which consists of a sensor body and a cable. One end of the cable is connected to the sensor body, and a protective structure is provided around the cable connection end to prevent excessive bending of the cable end. The protective structure includes a pair of connecting parts, an inner sleeve, and an elastic body. The pair of connecting parts interlock to fix the inner sleeve by closing it. The elastic body is detachably connected to the outer periphery of the inner sleeve. Both the inner sleeve and the elastic body are fitted around the cable connection end. The elastic support of the elastic body effectively prevents damage caused by excessive bending of the cable. Furthermore, the inner sleeve, positioned between the elastic body and the cable, prevents excessive friction between the elastic body and the bent portion of the cable, thus preventing damage to the cable sheath.

Description

Technical Field

[0001] This utility model relates to the field of mining sensor technology, and in particular to a mining position sensor. Background Technology

[0002] Intrinsically safe position sensors for mining are sensors specifically designed for mine automation systems. They can be used to monitor the status and position information of various equipment in the mine, and are applied to scenarios such as detecting the opening and closing status of mine ventilation doors and detecting the movement of hydraulic supports.

[0003] Mining sensors typically include a sensor body and cables connecting to it. The cables connect to a control unit for use with the sensor body. For example, Chinese Patent Publication No. CN213812197U discloses a mine position sensor, which includes: three connecting wires, resistors R1, R2, and R3, diodes D1 and D2, transistors Q1 and Q2, capacitors C1, C2, and C3, and a chip U1. The three connecting wires are VDD1, OUT1, and GND1. This utility model's structure meets intrinsically safe explosion-proof requirements: the entire unit is encapsulated in a stainless steel shell.

[0004] The prior art, Chinese Patent Publication No. "CN222927885U", discloses a wire protection sleeve that is resistant to bending, waterproofing, and dustproofing, relating to the field of waterproof wire connector technology. It includes an interface component for connecting to equipment. The interface component has a stepped mounting hole inside, and a retractable wire clamping component is installed inside the stepped mounting hole. A sealing ring is provided at the end of the stepped mounting hole that contacts the wire clamping component. An anti-bending tube is threaded onto the outside of the interface component. The wire clamping component includes a cylindrical wire clamp, one end of which has a protruding structure with an opening groove.

[0005] In practice, cables sometimes need to be connected by bending and folding. However, if the end of the cable that connects to the sensor body lacks protective measures, it is easy for excessive bending to cause damage to the outer sheath or breakage of the internal wiring harness, resulting in cable damage. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of anti-bending measures at the cable ends, and to propose a mining position sensor.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Design a mining position sensor, which consists of a sensor body and a cable. One end of the cable is connected to the sensor body, and a protective structure is provided around the cable connection end to prevent excessive bending of the cable end.

[0009] The protective structure includes a pair of connecting parts, an inner sleeve, and an elastic body. The pair of connecting parts are interlocked to fix the inner sleeve by closing. The elastic body is detachably connected to the outer periphery of the inner sleeve. Both the inner sleeve and the elastic body are fitted around the cable.

[0010] Furthermore, the pair of connecting parts have the same structure, and the outer walls of the pair of connecting parts are provided with protrusions on the upper and lower sides of opposite sides. One pair of protrusions extends through both sides to form a slot, and the other pair of protrusions has an elastic buckle on its side. The elastic buckle is engaged in the corresponding slot by abutting deformation.

[0011] Furthermore, a pair of connecting portions have a groove inside at the end away from the sensor body, and the pair of grooves close together to form a circular structure. The inner sleeve has an integrally formed protrusion at one end, and the protrusion engages within the pair of grooves.

[0012] Furthermore, the pair of connecting parts, by closing, cause the inner sleeve to grip the outer wall of the cable.

[0013] Furthermore, the inner sleeve is an elastic structure and is ring-shaped. The outer wall of the inner sleeve passes through the central through hole to form an opening, and it is sleeved around the connection end of the cable through the opening.

[0014] Furthermore, the inner sleeve has at least one pair of U-shaped grooves distributed in a spiral shape around its outer periphery, and the inner sleeve is bent around the defined portion of the U-shaped grooves to form a limiting part;

[0015] The elastic body is a spring, one end of which is spirally inserted into the limiting part.

[0016] The advantages of this utility model for a mining position sensor are as follows: The device features a detachable inner sleeve and an elastic body connected to the cable connection end via a pair of connecting parts. This allows for easy disassembly and replacement of the connecting parts, inner sleeve, and elastic body after prolonged use. Furthermore, the inner sleeve and elastic body are both fitted around the cable connection end, and the elastic support of the elastic body effectively prevents damage caused by excessive bending of the cable. The inner sleeve, positioned between the elastic body and the cable, prevents excessive friction between the elastic body and the bent portion of the cable, thus preventing damage to the cable sheath. The device has a simple structure and strong practicality. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the protective structure of this utility model;

[0019] Figure 3 for Figure 2 A magnified structural diagram of area A;

[0020] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of region B;

[0021] Figure 5 This is a schematic diagram of the inner sleeve of this utility model.

[0022] In the diagram: 1. Sensor body; 2. Cable; 3. Protective structure; 31. Connecting part; 311. Protrusion; 312. Slot; 313. Elastic buckle; 32. Inner sleeve; 321. Outer protrusion; 322. Limiting part; 33. Elastic body; 4. Groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-5 A mining position sensor consists of a sensor body 1 and a cable 2. One end of the cable 2 is connected to the sensor body 1. A protective structure 3 is provided around the connection end of the cable 2 to prevent the end of the cable 2 from being excessively bent.

[0025] The protective structure 3 includes a pair of connecting parts 31, an inner sleeve 32, and an elastic body 33. The pair of connecting parts 31 are interlocked to fix the inner sleeve 32 by closing. The elastic body 33 is detachably connected to the outer periphery of the inner sleeve 32. Both the inner sleeve 32 and the elastic body 33 are fitted around the outer periphery of the cable 2.

[0026] In some embodiments, the mining position sensor is the GUC6 intrinsically safe mining position sensor in the prior art. Therefore, the specific structure of the sensor body 1 and the connection method between the sensor body 1 and the cable 2 are not described in detail here.

[0027] Specifically, because the sensor body 1 is fixedly connected to the mining equipment, when the cable 2 is bent due to external reasons, the connection end of the cable 2 may be bent at a near right angle. However, under the elastic support force of the elastic body 33, the connection end of the cable 2 is bent in an arc shape, thereby effectively reducing the excessive bending of the cable 2.

[0028] Furthermore, the pair of connecting parts 31 have the same structure, and the outer walls of the pair of connecting parts 31 are provided with protrusions 311 on the upper and lower sides of opposite sides. One pair of protrusions 311 passes through both sides to form a slot 312, and the other pair of protrusions 311 has an elastic buckle 313 on its side. The elastic buckle 313 is engaged in the corresponding slot 312 by abutting deformation.

[0029] Furthermore, each pair of connecting parts 31 has a groove 4 inside at the end away from the sensor body 1. The pair of grooves 4 close together to form a circular structure. One end of the inner sleeve 32 is integrally formed with an outward protrusion 321, which engages within the pair of grooves 4.

[0030] More specifically, the pair of connecting parts 31 drive the inner sleeve 32 to grip the outer wall of the cable 2 by closing together.

[0031] In this embodiment, as Figure 4 The elastic buckle 313 has an L-shaped structure and a guide slope at the buckle end. The guide slope is used to reduce the frictional force generated when the buckle end of the elastic buckle 313 comes into contact with the opposing protrusion 311.

[0032] Specifically, the buckle end of the elastic buckle 313 is engaged in the slot 312 by abutting deformation, so that a pair of connecting parts 31 fit together and are fixed. After the pair of connecting parts 31 are closed and fixed, the inner sleeve 32 is driven to hug the outer wall of the cable 2 by clamping, thereby fixing the entire protective structure 3.

[0033] More specifically, the inner sleeve 32 is preferably made of a material such as nylon or rubber that can generate good friction with the rubber outer sheath of the cable 2. The inner sleeve 32 prevents the outer sheath of the cable 2 from being affected when the end of the elastomer 33 is bent. Of course, the inner sleeve 32 can be provided at both ends of the elastomer 33.

[0034] In general, the inner sleeve 32 is an elastic structure and is ring-shaped. The outer wall of the inner sleeve 32 passes through the central through hole to form an opening, and it is sleeved around the connection end of the cable 2 through the opening.

[0035] Finally, the inner sleeve 32 has at least one pair of U-shaped grooves distributed in a spiral shape around its periphery, and the inner sleeve 32 is bent around the defined portion of the U-shaped grooves to form a limiting part 322;

[0036] The elastic body 33 is a spring, one end of which is spirally inserted into the limiting part 322.

[0037] It should be noted that, ideally, the elastomer 33 should not have excessive elastic potential energy to prevent the cable 2 from being difficult to bend. The cable 2 should bend in an arc shape under appropriate elastic potential energy.

[0038] In this case, both the connecting part 31 and the inner sleeve 32 can be separated from the cable 2 by means of separation. If the diameter of the elastic body 33 is smaller than that of the connector, the elastic body 33 can be separated from the cable 2 by means of spiral winding.

[0039] Working method: During operation, the inner sleeve 32 and the elastic body 33 are both fitted around the cable 2. Then, one end of the elastic body 33 is sequentially inserted into the limiting part 322 by spiral winding, so that the elastic body 33 and the inner sleeve 32 are fixed.

[0040] Then, a pair of connecting parts 31 close together and cover the outer periphery of the cable 2. When the pair of connecting parts 31 close together, they also fix the outer protrusion 321 of the inner sleeve 32 in the groove 4. The inner sleeve 32 hugs the cable 2 tightly under the clamping action of the pair of connecting parts 31.

[0041] When the pair of connecting parts 31 are closed, the elastic buckle 313 engages with the corresponding slot 312, thereby fixing the pair of connecting parts 31.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mine position sensor, comprising a sensor body (1) and a cable (2), characterized in that: One end of the cable (2) is connected to the sensor body (1), and a protective structure (3) is provided around the connection end of the cable (2). The protective structure (3) is used to prevent the end of the cable (2) from being excessively bent. The protective structure (3) includes a pair of connecting parts (31), an inner sleeve (32), and an elastic body (33). The pair of connecting parts (31) are interlocked to fix the inner sleeve (32) by closing. The elastic body (33) is detachably connected to the outer periphery of the inner sleeve (32). Both the inner sleeve (32) and the elastic body (33) are fitted around the cable (2).

2. A mining position sensor according to claim 1, characterized in that: The pair of connecting parts (31) have the same structure, and the outer walls of the pair of connecting parts (31) are provided with protrusions (311) on the upper and lower sides of opposite sides. One pair of protrusions (311) forms a slot (312) through both sides, and the other pair of protrusions (311) has an elastic buckle (313) on the side. The elastic buckle (313) is engaged in the corresponding slot (312) by abutting deformation.

3. A mine position sensor according to claim 2, characterized in that: A pair of connecting parts (31) have a groove (4) inside at the end away from the sensor body (1). The pair of grooves (4) close together to form a circular structure. The inner sleeve (32) has an integrally formed protrusion (321) at one end, which engages in the pair of grooves (4).

4. A mine position sensor according to claim 1, characterized in that: The pair of connecting parts (31) drive the inner sleeve (32) to hug the outer wall of the cable (2) by closing.

5. A mine position sensor according to claim 1, characterized in that: The inner sleeve (32) is an elastic structure and is ring-shaped. The outer wall of the inner sleeve (32) passes through the central through hole to form an opening, and it is sleeved around the connection end of the cable (2) through the opening.

6. A mine position sensor according to claim 1, characterized in that: The inner sleeve (32) has at least one pair of U-shaped grooves spirally distributed around its periphery, and the inner sleeve (32) bends around the defined portion of the U-shaped grooves to form a limiting part (322); The elastic body (33) is a spring, one end of which is spirally inserted into the limiting part (322).

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