Convenient and fast coal mine tunneling supporting device

Abstract

The utility model belongs to the field of coal mine underground supporting tools, particularly relates to a portable coal mine rapid tunneling supporting device, and aims to solve the problems that when an existing supporting device is used, connection between a connecting pipe and a liquid pump is generally achieved through the effects of a flange and a plurality of fixing bolts; in order to solve the problems that in the prior art, a plurality of fixing bolts need to be operated one by one by a worker holding a tool in the disassembling and assembling process, the operation steps are tedious, and time and labor are wasted, the following scheme is provided: the device comprises a coal mine supporting device main body and a fixing mechanism; a hydraulic cylinder is arranged in the coal mine supporting device body, an oil inlet pipe is connected to the hydraulic cylinder in a sealed mode, the fixing mechanism is arranged on the oil inlet pipe, a connecting pipe is connected into the oil inlet pipe in an inserted mode, and the fixing mechanism is connected with the connecting pipe. According to the utility model, through the cooperation of all the parts, the effect of quickly disassembling and assembling the connecting pipe and the oil inlet pipe can be realized without an external tool, and the convenience and the efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine underground support tools, in particular to a portable rapid tunneling support device for coal mines. Background Technique

[0002] A coal mine is an area where humans mine coal resources in coal-rich mining areas. Generally, it is divided into underground coal mines and surface coal mines. A coal mine is a reasonable space excavated by humans when excavating coal-rich geological strata, usually including roadways, shafts, and working faces, etc. In the work of underground coal mine mining, a front-probing beam is usually required. The front-probing beam is a device for temporary support in the face of underground coal mine tunneling work, which can prevent roof caving and roof leakage during tunneling operations, and ensure the safety of the advanced support operation for tunneling;

[0003] In the prior art, only the front end part of the front-probing beam can be moved for jacking, with a small contact surface and instability, which is likely to cause the inclination of the roof part, and there is a risk of roof falling and roof caving during the tunneling construction. In view of the above problems, the document with the application number 202222011762.4 discloses an automatic telescopic front-probing beam, which includes a T-shaped front-probing beam support device. The T-shaped front-probing beam support device includes a front-probing beam body. A hydraulic cylinder and a piston rod are arranged in the front-probing beam body. A top block is arranged at the upper end of the piston rod. Transverse brackets are respectively hinged on both sides of the top block. Slide openings and sliding grooves are arranged at both sides of the upper surface of the top block. A positioning component is arranged in each sliding groove, so that the two horizontally arranged transverse brackets and the front-probing beam body form a T shape;

[0004] However, after reading the above patent document, the following deficiencies are found: when in use, generally, the connection between its connecting pipe and the liquid pump is realized through the action of a flange and multiple fixing bolts, so that during the disassembly and assembly process, the staff needs to hold tools to operate each of the multiple fixing bolts one by one. This not only has cumbersome operation steps, is time-consuming and laborious, but also is prone to liquid leakage when the locking forces of the multiple fixing bolts are different, and there is room for improvement. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a portable rapid tunneling support device for coal mines is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A portable rapid tunneling support device for coal mines includes a main body of the coal mine support device and a fixing mechanism;

[0008] The main body of the coal mine support device is provided with a hydraulic cylinder. An oil inlet pipe is hermetically connected to the hydraulic cylinder. The fixing mechanism is arranged on the oil inlet pipe. A connecting pipe is inserted into the oil inlet pipe, and the fixing mechanism is connected to the connecting pipe;

[0009] The fixing mechanism includes a sphere, a sleeve, a protective cover, a spring, a pushing ring and a first slider. Four installation grooves are formed in the oil inlet pipe. The four installation grooves are all movably provided with spheres. The four spheres are all clamped with the connecting pipe. A sleeve is slidably sleeved on the oil inlet pipe. The sleeve abuts against all the four spheres. Through the cooperative design among the oil inlet pipe, the connecting pipe and the fixing mechanism, the quick disassembly and assembly of the connecting pipe and the oil inlet pipe can be realized without external tools, which improves the convenience and efficiency. Moreover, the structure is simple and the practicability is higher.

[0010] Specifically, two through holes are formed in the sleeve. The two through holes respectively correspond to two of the four spheres. During the insertion process of the oil inlet pipe and the connecting pipe, it is convenient for the corresponding spheres to move. The protective cover is fixedly sleeved on the oil inlet pipe and is slidably connected to the sleeve, playing a role in starting protection.

[0011] Specifically, the spring is sleeved on the oil inlet pipe. One end of the spring is fixedly connected to the sleeve, and the other end of the spring is fixedly connected to the oil inlet pipe. The elastic potential energy of the spring enables the sleeve to return to its original state.

[0012] Specifically, two first sliders are fixedly connected to each of the four spheres. The multiple first sliders are all slidably connected to the oil inlet pipe. Through the action of the multiple first sliders, the four spheres are prevented from detaching from the oil inlet pipe.

[0013] Specifically, a pushing ring is fixedly sleeved on the sleeve. The pushing ring abuts against the protective cover, facilitating the staff to push the sleeve. A second slider is fixedly connected to the sleeve. The second slider is slidably connected to the protective cover. During the sliding process of the sleeve, the second slider is driven to slide synchronously on the protective cover. At the same time, through the action of the second slider, the sleeve is limited, so as to conveniently make the two through holes on the sleeve respectively correspond to the spheres.

[0014] Specifically, a blocking ring is fixedly connected in the oil inlet pipe. The blocking ring abuts against one end of the connecting pipe. Four clamping grooves are formed in the connecting pipe. The four clamping grooves respectively match with the four spheres. Through the action of the blocking ring, the connecting pipe is limited, facilitating the four clamping grooves to respectively correspond to the four spheres.

[0015] Specifically, a first sealing gasket is fixedly installed on the blocking ring and abuts against the connecting pipe. A first groove is formed in the connecting pipe, and a first sealing ring is fixedly installed in the first groove. The first sealing ring is slidably connected to the fuel inlet pipe, improving the sealing performance. A valve is provided on the fuel inlet pipe, and through this valve, the on-off control of the fuel inlet pipe is achieved.

[0016] Specifically, a top block is provided on the main body of the coal mine support device and is connected to the output end of the hydraulic cylinder. A support mechanism is provided on the top block. Open the valve on the fuel inlet pipe and convey hydraulic oil into the hydraulic cylinder through the action of the connecting pipe. At the same time, unfold the support mechanism on the top block, so that the hydraulic cylinder works and jacks up the top block to abut against the top of the coal mine, thereby achieving the effect of temporarily supporting the coal mine. The specific structures and working principles of the main body of the coal mine support device, the top block, and the support mechanism can refer to the document with the application number: 202222011762.4 proposed in this application. This is the prior art and will not be elaborated too much here.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] (1) For the portable rapid tunneling support device for coal mines of the present utility model, through the cooperative design among the fuel inlet pipe, the connecting pipe, and the fixing mechanism, the rapid disassembly and assembly of the connecting pipe and the fuel inlet pipe can be achieved without external tools, improving the convenience and efficiency. Moreover, the structure is simple and the practicability is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size.

[0020] Figure 1 is a three-dimensional structure schematic diagram of a portable rapid tunneling support device for coal mines proposed by the present utility model;

[0021] Figure 2 is a front view structural dissection schematic diagram of a portable rapid tunneling support device for coal mines proposed by the present utility model;

[0022] Figure 3 is Figure 2 an enlarged structural schematic diagram of part A in

[0023] Figure 4 is Figure 3 the enlarged structural schematic diagram of the B position in

[0024] Figure 5 is Figure 1 the enlarged structural schematic diagram of the C position in

[0025] In the figure: 1. The main body of the coal mine support device; 2. Hydraulic cylinder; 3. Oil inlet pipe; 4. Connecting pipe; 5. Sphere; 6. Sleeve; 7. Protective cover; 8. Spring; 9. Pushing ring; 10. First slider; 11. Through hole; 12. Second slider; 13. Resistance ring; 14. Card slot; 15. Valve. Specific implementation mode

[0026] The following specific embodiments illustrate the implementation mode of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0027] Refer to Figures 1-5 , a portable rapid tunneling support device for coal mines, including the main body 1 of the coal mine support device and a fixing mechanism;

[0028] A hydraulic cylinder 2 is arranged in the main body 1 of the coal mine support device. An oil inlet pipe 3 is hermetically connected to the hydraulic cylinder 2. The fixing mechanism is arranged on the oil inlet pipe 3. A connecting pipe 4 is inserted into the oil inlet pipe 3. The fixing mechanism is connected to the connecting pipe 4;

[0029] The fixing mechanism includes a sphere 5, a sleeve 6, a protective cover 7, a spring 8, a pushing ring 9 and a first slider 10. Four installation grooves are opened on the oil inlet pipe 3. Four spheres 5 are movably installed in the four installation grooves. The four spheres 5 are all clamped with the connecting pipe 4. A sleeve 6 is slidably sleeved on the oil inlet pipe 3. The sleeve 6 abuts against all four spheres 5. Through the cooperative design among the oil inlet pipe 3, the connecting pipe 4 and the fixing mechanism, the effect of quickly disassembling and assembling the connecting pipe 4 and the oil inlet pipe 3 can be realized without external tools, which improves the convenience and efficiency, and has a simple structure and higher practicability.

[0030] In this embodiment, two through holes 11 are opened on the sleeve 6. The two through holes 11 respectively correspond to two of the four spheres 5, which is convenient for the corresponding spheres 5 to move during the insertion process of the oil inlet pipe 3 and the connecting pipe 4. The protective cover 7 is fixedly sleeved on the oil inlet pipe 3 and is slidably connected to the sleeve 6, playing a role in starting protection.

[0031] In this embodiment, a spring 8 is sleeved on the oil inlet pipe 3. One end of the spring 8 is fixedly connected to the sleeve 6, and the other end of the spring 8 is fixedly connected to the oil inlet pipe 3. The elastic potential energy of the spring 8 enables the sleeve 6 to return to its original state.

[0032] In this embodiment, two sliders one 10 are fixedly connected to each of the four spheres 5, and multiple sliders one 10 are all slidably connected to the oil inlet pipe 3. The four spheres 5 are prevented from detaching from the oil inlet pipe 3 by the action of the multiple sliders one 10.

[0033] In this embodiment, a push ring 9 is fixedly sleeved on the sleeve 6. The push ring 9 abuts against the protective cover 7, which is convenient for the staff to push the sleeve 6. A slider two 12 is fixedly connected to the sleeve 6, and the slider two 12 is slidably connected to the protective cover 7. During the sliding process of the sleeve 6, the slider two 12 is driven to slide synchronously on the protective cover 7. At the same time, the sleeve 6 is limited by the action of the slider two 12, so as to facilitate the two through holes 11 on the sleeve 6 to correspond to the spheres 5 respectively.

[0034] In this embodiment, a blocking ring 13 is fixedly connected inside the oil inlet pipe 3. The blocking ring 13 abuts against one end of the connecting pipe 4. Four clamping grooves 14 are formed on the connecting pipe 4, and the four clamping grooves 14 are respectively adapted to the four spheres 5. The connecting pipe 4 is limited by the action of the blocking ring 13, so as to facilitate the four clamping grooves 14 to correspond to the four spheres 5 respectively. A liquid pump is provided at the other end of the connecting pipe 4.

[0035] In this embodiment, a sealing gasket one is fixedly installed on the blocking ring 13 and abuts against the connecting pipe 4. A groove one is formed on the connecting pipe 4, and a sealing ring one is fixedly installed in the groove one. The sealing ring one is slidably connected to the oil inlet pipe 3 to improve the sealing performance. A valve 15 is provided on the oil inlet pipe 3. Through the valve 15, the on-off control of the oil inlet pipe 3 is realized.

[0036] In this embodiment, a top block is provided on the main body 1 of the coal mine support device and is connected to the output end of the hydraulic cylinder 2. A support mechanism is provided on the top block. The valve 15 on the oil inlet pipe 3 is opened, and hydraulic oil is conveyed into the hydraulic cylinder 2 through the action of the connecting pipe 4. At the same time, the support mechanism on the top block is unfolded, so that the hydraulic cylinder 2 works and the top block is lifted to abut against the top of the coal mine, thereby achieving the effect of temporarily supporting the coal mine. For the specific structure and working principle of the main body 1 of the coal mine support device, the top block and the support mechanism, reference can be made to the document with the application number: 202222011762.4 proposed in this application. This is the prior art and will not be elaborated here.

[0037] Working principle: During use, the valve 15 on the oil inlet pipe 3 is opened, and hydraulic oil is conveyed into the hydraulic cylinder 2 through the action of the connecting pipe 4. At the same time, the support mechanism on the top block is unfolded, so that the hydraulic cylinder 2 works and the top block is lifted to abut against the top of the coal mine, thereby achieving the effect of temporarily supporting the coal mine;

[0038] During the process of disassembling and assembling the connecting pipe 4 and the oil inlet pipe 3, first, the sleeve 6 is pushed to the right by the push ring 9 so that the spring 8 is further compressed and stored, and at the same time, the left end of the sleeve 6 is moved to the right side of two of the four spheres 5, and the two through holes 11 on the sleeve 6 correspond to the other two spheres 5 respectively, so as to achieve the purpose of contact and limiting the four spheres 5; then, one end of the connecting pipe 4 is inserted into the oil inlet pipe 3, and the four grooves 14 on the connecting pipe 4 correspond to the four spheres 5 respectively, and one end of the connecting pipe 4 is abutted against the sealing gasket on the blocking ring 13; after that, The push ring 9 is loosened and the sleeve 6 slides to the left on the oil inlet pipe 3 and acts on the four balls 5 under the action of the elastic potential energy of the spring 8. In this process, the sleeve 6 gives a thrust to the four balls 5, so that the four balls 5 all slide on the oil inlet pipe 3 and are engaged with the corresponding four grooves 14. At the same time, the sleeve 6 blocks the four balls 5, thereby achieving the effect of limiting the four balls 5. At the same time, the action between the four balls 5 and the four grooves 14 achieves the effect of limiting and fixing the connecting pipe 4; thereby achieving the effect of quickly assembling the connecting pipe 4 and the oil inlet pipe 3;

[0039] On the contrary, this can achieve the effect of quickly disassembling the oil inlet pipe 3 and the connecting pipe 4.

[0040] The technical progress achieved by the utility model compared with the prior art is that the connection pipe 4 and the oil inlet pipe 3 can be quickly disassembled and assembled through the cooperation of various components without external tools, thereby improving convenience and efficiency, and the structure is simple and more practical.

Claims

1. A portable rapid tunneling support device for coal mines, characterized in that, It includes the main body (1) of the coal mine support device and a fixing mechanism; A hydraulic cylinder (2) is provided inside the main body (1) of the coal mine support device. An oil inlet pipe (3) is sealingly connected to the hydraulic cylinder (2). The fixing mechanism is arranged on the oil inlet pipe (3). A connecting pipe (4) is inserted into the oil inlet pipe (3), and the fixing mechanism is connected to the connecting pipe (4); The fixing mechanism includes a sphere (5), a sleeve (6), a protective cover (7), a spring (8), a pushing ring (9), and a first slider (10). Four installation grooves are formed on the oil inlet pipe (3). The spheres (5) are movably installed in the four installation grooves. The four spheres (5) are all clamped with the connecting pipe (4). A sleeve (6) is slidably sleeved on the oil inlet pipe (3), and the sleeve (6) abuts against the four spheres (5).

2. The portable rapid tunneling support device for coal mines according to claim 1, characterized in that, Two through holes (11) are formed on the sleeve (6). The two through holes (11) respectively correspond to two of the four spheres (5). The protective cover (7) is fixedly sleeved on the oil inlet pipe (3) and is slidably connected to the sleeve (6).

3. The portable rapid tunneling support device for coal mines according to claim 2, wherein, The spring (8) is sleeved on the oil inlet pipe (3). One end of the spring (8) is fixedly connected to the sleeve (6), and the other end of the spring (8) is fixedly connected to the oil inlet pipe (3).

4. The portable rapid tunneling support device for coal mines according to claim 2, characterized in that, Two first sliders (10) are fixedly connected to each of the four spheres (5). The multiple first sliders (10) are all slidably connected to the oil inlet pipe (3).

5. A portable rapid tunneling support device for coal mines according to claim 2, characterized in that, A pushing ring (9) is fixedly sleeved on the sleeve (6). The pushing ring (9) abuts against the protective cover (7). A second slider (12) is fixedly connected to the sleeve (6). The second slider (12) is slidably connected to the protective cover (7).

6. The portable rapid tunneling support device for coal mines according to claim 1, characterized in that, A blocking ring (13) is fixedly connected inside the oil inlet pipe (3). The blocking ring (13) abuts against one end of the connecting pipe (4). Four clamping grooves (14) are formed on the connecting pipe (4). The four clamping grooves (14) respectively match the four spheres (5).

7. The portable rapid tunneling support device for coal mines according to claim 6, wherein, A first sealing gasket is fixedly installed on the blocking ring (13) and abuts against the connecting pipe (4). A first groove is formed on the connecting pipe (4). A first sealing ring is fixedly installed in the first groove. The first sealing ring is slidably connected to the oil inlet pipe (3). A valve (15) is arranged on the oil inlet pipe (3).

8. The portable rapid tunneling support device for coal mines according to claim 1, characterized in that, A top block is arranged on the main body (1) of the coal mine support device and is connected to the output end of the hydraulic cylinder (2). A support mechanism is arranged on the top block.

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