Protective device for coal mine tunneling

Abstract

The utility model discloses a protective device for coal mine tunneling, and particularly relates to the technical field of coal mine tunneling, which comprises a support plate, a protective support plate is arranged at the top of the support plate, a protective top plate is arranged at the top of the protective support plate, and fixed chutes are formed in the front side surfaces of the protective support plate and the protective top plate; a supporting plate is slidably connected into the fixed sliding groove. A fixing groove is formed in the supporting plate, a spring is installed in the fixing groove, and the two ends of the spring are fixedly connected with moving rods. The protective plate is independently detached, the protective supporting plate, the protective top plate and the supporting plate are rapidly separated, the detaching mode is easy to operate, the detaching time is greatly shortened, the shutdown time caused by equipment detaching is shortened, when the protective supporting plate or the protective top plate is damaged, the whole protective structure does not need to be detached, and the working efficiency is improved. And only damaged parts need to be replaced in a targeted manner, so that unnecessary disassembly and loss of other intact parts are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine tunneling, more specifically, the utility model relates to the protection device for coal mine tunneling. BACKGROUND

[0002] In the coal mine tunneling operation, the complex and changeable geological conditions of the roadway, the roof falling, the sidewall collapse and other safety hazards threaten the life safety of the construction personnel and the normal operation of the equipment at any time, therefore, the reliable protection device is the key to guarantee the safe progress of the tunneling work.

[0003] Through the search, the patent with the announcement number CN214787461U discloses a protection device for coal mine tunneling construction, aiming at the problem that the coal slag generated in the tunneling process is easy to fall and cause damage to the equipment and the workers due to the lack of protective measures during the construction process of the coal mine, the blocking and protection effect is realized through the baffle and the extension plate, the protection device for coal mine tunneling construction can be adjusted according to the needs, and has the blocking and protection effect.

[0004] The traditional tunneling protection device adopts the integral type or the complex connecting structure, a large amount of manpower and time are consumed during disassembly, once a single component is damaged, the protection effect of the overall device is easily affected, the entire protection structure needs to be disassembled when a single component is damaged, the maintenance efficiency is low, additional damage to the undamaged components is easily caused, and the maintenance cost is increased. UTILITY MODEL CONTENTS

[0005] In order to overcome the problems and defects in the prior art, the utility model provides the protection device for coal mine tunneling to solve the problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: the protection device for coal mine tunneling, including the support plate, the support plate top is provided with the protection support plate, the protection support plate top is provided with the protection roof, the protection support plate and the protection roof front side surface all are equipped with fixed sliding groove, the fixed sliding groove inside is connected with the support plate that slides,

[0007] The support plate is internally provided with a fixed groove, a spring is installed in the fixed groove, the both ends of the spring are fixedly connected with a moving rod, the moving rod is fixedly connected with a moving push plate at the bottom, a first support column is fixedly connected to the bottom of the support plate at the bottom of the protection roof, a second support column is fixedly connected to the bottom of the support plate at the bottom of the protection support plate, and a fixed clamping groove is formed on the both sides of the inner wall of the fixed sliding groove.

[0008] Preferably, the fixed clamping groove and the moving rod are movably connected, and the moving rod and the support plate are slidably connected.

[0009] Preferably, the support plate bottom surface is provided with a sliding groove, and the sliding groove is in sliding connection with the moving push plate, and the moving push plate bottom end penetrates through the support plate and extends to the support plate bottom.

[0010] Preferably, the number of the support plate and the protective support plate is two, two support plates are fixedly connected with a support beam, and the support beam, the second support column and the first support column are fixedly connected with an arc-shaped reinforcing rod.

[0011] Preferably, the protective support plate top and bottom are fixedly connected with a connecting sliding plate, and the connecting sliding plate side surface, the protective top plate bottom surface and the support plate side surface are all provided with threaded holes.

[0012] Preferably, the threaded hole is in threaded connection with a fixing bolt.

[0013] Preferably, the support plate and the protective top plate front side surface are both provided with a sliding groove, and the sliding groove is in sliding connection with the connecting sliding plate.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. Through the double operations of rotating the fixing bolt out of the threaded hole and pulling the moving push plate to make the moving rod exit the fixed clamping groove, the protective top plate or the protective support plate is pulled to complete the separate disassembly of the protective plate, the protective support plate and the protective top plate are quickly separated, the disassembly mode operation is simple, the disassembly time is greatly shortened, compared with the complex disassembly process of the traditional protective device, the efficiency of equipment maintenance in the coal mine tunneling operation is significantly improved, the downtime caused by equipment disassembly is reduced, the protective support plate or the protective top plate can be separately separated from the support plate, when the protective support plate or the protective top plate is damaged, the whole protective structure does not need to be disassembled, only the damaged parts need to be replaced, unnecessary disassembly and loss of other intact parts are avoided, the maintenance cost is reduced, and the resource utilization efficiency is improved.

[0016] 2. The moving rod is clamped into the fixed clamping groove through the spring elastic force, and the connection of the fixing bolt and the threaded hole is ensured, so that the support plate, the protective support plate and the protective top plate are stably combined, a reliable protective barrier is provided for the coal mine tunneling operation, the risks such as rock collapse and coal body collapse in the roadway are effectively resisted, the safety of construction personnel and equipment is ensured, the support effect is ensured through the arc-shaped reinforcing rod and the support beam, the protection effect is improved, the connecting sliding plate and the sliding groove are in sliding connection, and the quick positioning of the protective support plate or the protective top plate is facilitated. DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model.

[0018] Figure 2 This is a bottom view of the structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the connection between the supporting beam and the support plate of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the protective support plate of this utility model.

[0021] Figure 5 This is a partial cross-sectional view of the front of this utility model.

[0022] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0023] The attached diagram is labeled as follows: 1. Support plate; 2. Protective support plate; 3. Protective top plate; 4. Fixed slide groove; 5. Support plate; 6. Fixed groove; 7. Spring; 8. Moving rod; 9. Moving push plate; 10. First support column; 11. Second support column; 12. Fixed slot; 13. Sliding groove; 14. Arc-shaped reinforcing rod; 15. Support beam; 16. Connecting slide plate; 17. Threaded hole; 18. Fixing bolt; 19. Slide groove. Detailed Implementation

[0024] 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.

[0025] As attached Figures 1-6 The protective device for coal mine tunneling shown includes a support plate 1, a protective support plate 2 is provided on the top of the support plate 1, a protective top plate 3 is provided on the top of the protective support plate 2, and a fixed sliding groove 4 is provided on the front surface of both the protective support plate 2 and the protective top plate 3, and a support plate 5 is slidably connected inside the fixed sliding groove 4.

[0026] The support plate 5 has a fixing groove 6 inside, and a spring 7 is installed inside the fixing groove 6. Both ends of the spring 7 are fixedly connected to a moving rod 8. The bottom of the moving rod 8 is fixedly connected to a moving push plate 9. The bottom of the support plate 5 located at the bottom of the protective top plate 3 is fixedly connected to a first support column 10. The bottom of the support plate 5 located at the bottom of the protective support plate 2 is fixedly connected to a second support column 11. The inner walls of the fixing groove 4 have fixing slots 12 on both sides.

[0027] As attached Figures 1-6As shown, the fixed clamping groove 12 is movably connected between the moving rod 8 and the support plate 5, the moving rod 8 is slidably connected between the support plate 5 and the moving push plate 9, the sliding groove 13 is formed in the bottom surface of the support plate 5, the moving push plate 9 is slidably connected between the sliding groove 13 and the moving push plate 9, and the bottom end of the moving push plate 9 penetrates through the support plate 5 and extends to the bottom of the support plate 5, so that the protective support plate 2 and the protective top plate 3 are fixed between the support plate 5, and the support plate 5 is prevented from moving in the fixed sliding groove 4 after installation, and the protection effect is ensured.

[0028] As shown in the accompanying drawings Figures 1-3 As shown, the number of the support plate 1 and the protective support plate 2 is two, the support cross beam 15 is fixedly connected between the two support plates 1, the arc-shaped reinforcing rod 14 is fixedly connected between the support cross beam 15, the second support column 11 and the first support column 10, and the protection effect is improved through the arc-shaped reinforcing rod 14 and the support cross beam 15.

[0029] As shown in the accompanying drawings Figure 1 、 2 , 4, 5, the protective support plate 2 is fixedly connected with the connecting sliding plate 16 at the top and the bottom, the connecting sliding plate 16 is provided with a threaded hole 17 on one side surface, the bottom surface of the protective top plate 3 and the side surface of the support plate 1 are provided with threaded holes 17, and the fixed bolt 18 is screwed in the threaded hole 17, so that the connecting sliding plate 16 is fixed, and the fixing effect of the protective support plate 2, the protective top plate 3 and the support plate 1 is improved.

[0030] As shown in the accompanying drawings Figure 1 、 2 , 5, the support plate 1 and the protective top plate 3 are provided with the sliding groove 19 on the front side surface, the sliding groove 19 is slidably connected with the connecting sliding plate 16, and the positioning effect is achieved, so that the protective support plate 2 and the protective top plate 3 are quickly installed.

[0031] The utility model discloses working principle: when normal use, the support plate 5 is installed in the fixed sliding groove 4 of the front side surface of the protective support plate 2 and the protective top plate 3, at this time, the spring 7 in the fixed groove 6 in the support plate 5 is in natural state, and the moving rod 8 at both ends of the spring 7 is clamped into the fixed clamping groove 12 on the inner wall of the fixed sliding groove 4 under the spring elastic force, realizes the fixed connection of the support plate 5, the protective support plate 2 and the protective top plate 3, and provides protection for coal mine tunneling.

[0032] When the damaged or broken protective side plate 2 and protective top plate 3 are disassembled, firstly, the fixed bolt 18 is rotated, so that the fixed bolt 18 is screwed out of the threaded hole 17, the preliminary disassembly is completed, the moving push plate 9 is pulled, so that the compression spring 7 is moved through the moving rod 8, the moving rod 8 is gradually withdrawn from the fixed clamping groove 12, the clamping state of the supporting plate 5 and the fixed sliding groove 4 is released, when the moving rod 8 is completely separated from the fixed clamping groove 12, the supporting plate 5 can freely slide in the fixed sliding groove 4, the connecting sliding plate 16 slides in the sliding groove 19, so that the protective side plate 2 or the protective top plate 3 is separated from the supporting plate 5, the individual protective side plate 2 or the protective top plate 3 is disassembled and replaced, and the damaged protective side plate 2 and the protective top plate 3 do not affect the protection effect.

[0033] Finally: the above-mentioned embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used for limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art under the spirit and technical thought disclosed by the utility model still should be covered by the claims of the utility model.

Claims

1. A protective device for coal mine tunneling, comprising a support plate (1), characterized in that: The support plate (1) is provided with a protective support plate (2) on top, and a protective top plate (3) is provided on top of the protective support plate (2). The front surfaces of the protective support plate (2) and the protective top plate (3) are provided with a fixed sliding groove (4), and a support plate (5) is slidably connected inside the fixed sliding groove (4). The support plate (5) has a fixing groove (6) inside, and a spring (7) is installed inside the fixing groove (6). Both ends of the spring (7) are fixedly connected to a moving rod (8). The bottom of the moving rod (8) is fixedly connected to a moving push plate (9). The bottom of the support plate (5) located at the bottom of the protective top plate (3) is fixedly connected to a first support column (10). The bottom of the support plate (5) located at the bottom of the protective support plate (2) is fixedly connected to a second support column (11). The inner walls of the fixed slide groove (4) are provided with fixing slots (12) on both sides.

2. The protective device for coal mine tunneling according to claim 1, characterized in that: The fixed slot (12) is movably engaged with the movable rod (8), and the movable rod (8) is slidably connected with the support plate (5).

3. The protective device for coal mine tunneling according to claim 1, characterized in that: The bottom surface of the support plate (5) is provided with a sliding groove (13), which is slidably connected to the movable push plate (9). The bottom end of the movable push plate (9) passes through the support plate (5) and extends to the bottom of the support plate (5).

4. The protective device for coal mine tunneling according to claim 1, characterized in that: The number of the support plate (1) and the protective support plate (2) are both set to two. A support beam (15) is fixedly connected between the two support plates (1). An arc-shaped reinforcing rod (14) is fixedly connected between the support beam (15), the second support column (11) and the first support column (10).

5. The protective device for coal mine tunneling according to claim 1, characterized in that: The top and bottom of the protective support plate (2) are fixedly connected with connecting slide plates (16), and threaded holes (17) are opened on one side surface of the connecting slide plate (16), the bottom surface of the protective top plate (3) and the one side surface of the support plate (1).

6. The protective device for coal mine tunneling according to claim 5, characterized in that: The threaded hole (17) is internally threaded with a fixing bolt (18).

7. The protective device for coal mine tunneling according to claim 1, characterized in that: The front surfaces of the support plate (1) and the protective top plate (3) are provided with grooves (19), and the grooves (19) are slidably connected to the connecting slide plate (16).

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