Temporary supporting structure for coal mining

Abstract

The utility model discloses a temporary supporting structure for coal mining, which belongs to the technical field of mining supporting and comprises a lower supporting part and an upper supporting part mounted at the top of the lower supporting part, a lifting adjusting part is mounted outside the upper supporting part through threads, and a lifting type vibration part is mounted inside the upper supporting part. According to the temporary supporting structure for coal mining, coal dust hidden in the threads of the upper supporting part can be vibrated off by operating the lifting type vibration part, so that more labor is saved when the lifting adjusting part is used, the threads of the upper supporting part cannot be damaged, and the service life of the upper supporting part is also prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mining support technology, specifically a temporary support structure for coal mining. Background Technology

[0002] During coal mine tunneling, in order to prevent the roof rocks from loosening and falling due to mining operations, temporary protective structures need to be set up in the corresponding work areas to ensure the safety of the operation.

[0003] Currently, temporary support methods mostly involve upper and lower steel pipes and lifting structures, with the lifting structure primarily using threads for adjustment. However, the air in coal mines contains a lot of coal dust, which settles into the threads. This makes operating the lifting structure very difficult, and if the coal dust is not cleaned from the threads, it may even damage them. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a temporary support structure for coal mining that is convenient and quick for cleaning coal dust inside threaded wires.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A temporary support structure for coal mining includes a lower support section and an upper support section installed on top of the lower support section. The upper support section has a lifting and adjusting part installed on the outside by threads.

[0007] The upper support section is equipped with a lifting vibration device. By operating the lifting vibration device, the coal dust hidden in the threads of the upper support section can be shaken off.

[0008] By adopting the above scheme, the temporary support structure for coal mining can shake off the coal dust hidden in the threads of the upper support by operating the lifting vibration part. This makes it easier to use the lifting adjustment part and will not damage the threads of the upper support, thus extending the service life of the upper support.

[0009] As a preferred embodiment of a temporary support structure for coal mining, the lower support includes a lower branch pipe. The lower branch pipe has multiple insertion holes arranged in an upper and lower array on its pipe wall. A connecting pin is inserted into one of the insertion holes. A support base is connected to the bottom of the lower branch pipe. Multiple foot nails arranged in a circumferential array and facing downward are inserted into the bottom of the support base.

[0010] In order to achieve bottom support, the above scheme uses a support base for support and a lower support pipe for support, and foot spikes can improve the grip.

[0011] As a preferred embodiment of a temporary support structure for coal mining, the upper support part includes an upper branch pipe. A slot located in the threaded wire is vertically opened on the pipe wall of the upper branch pipe. A connecting pin located in the insertion hole is simultaneously inserted into the slot. A support top is connected to the top of the upper branch pipe. Multiple circumferentially arrayed and upward-facing foot nails are inserted into the top of the support top.

[0012] In order to achieve top support, the above scheme uses a top support seat for support and an upper branch pipe for support, and the second foot nail can improve the grip.

[0013] As a preferred embodiment of a temporary support structure for coal mining, the lifting and adjusting part includes a clamp rotatably installed on the threaded thread of the upper support pipe. The clamp is located above the connecting pin. An opening is provided on one side of the clamp. The opening end of the clamp is equipped with a bolt and nut for adjusting the size of the opening. A handle is rotatably installed on the end of the clamp away from its opening.

[0014] Using the above solution, in order to achieve height adjustment, the connecting pin is inserted into the sockets of different heights, which allows for a wide range of height adjustment. By rotating the handle, the position of the clamp is changed under the action of the thread, which allows for a small range of height adjustment.

[0015] As a preferred embodiment of a temporary support structure for coal mining, the lifting vibration component includes a positioning rod extending into the upper support pipe. A sliding sleeve capable of sliding out of the upper support pipe is installed on the positioning rod. Steel balls capable of impacting the inner wall of the upper support pipe are connected to the upper and lower ends of the sliding sleeve. A spring that pushes the steel balls to impact the inner wall of the upper support pipe is installed on the positioning rod. Two pull handles are connected to the upper and lower ends of the sliding sleeve away from the steel balls. A screw is connected to the end of the positioning rod, extending through the upper support pipe. A screw that completely tightens the positioning rod is installed on the screw.

[0016] Using the above method, in order to dislodge the coal dust, the handle is pulled outward, which compresses the spring. When the handle is released, the steel ball will hit the inner wall of the upper branch pipe under the pushing force of the spring. At this time, the upper branch pipe vibrates, which will dislodge the coal dust in the threaded wire.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are:

[0018] 1. The temporary support structure for coal mining can shake off the coal dust hidden in the threads of the upper support by operating the lifting vibration part. This makes it easier to use the lifting adjustment part and will not damage the threads of the upper support, thus extending the service life of the upper support.

[0019] 2. To achieve bottom support, a support base is used for support, and the lower support tube provides support. Foot spike one can improve grip. To achieve top support, a support top seat is used for support, and the upper support tube provides support. Foot spike two can improve grip.

[0020] 3. To achieve height adjustment, insert the connecting pin into the sockets of different heights for a wide range of height adjustment. By rotating the handle, the position of the clamp can be changed under the action of the thread for a small range of height adjustment.

[0021] 4. In order to dislodge the coal dust, the handle is pulled outward. At this time, the spring is compressed. When the handle is released, the steel ball will hit the inner wall of the upper branch pipe under the pushing force of the spring. At this time, the upper branch pipe vibrates, which will dislodge the coal dust in the threaded wire. 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 or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 Three-dimensional structure for temporary support structure in coal mining Figure 1 ;

[0024] Figure 2 Three-dimensional structure for temporary support structure in coal mining Figure 2 ;

[0025] Figure 3 for Figure 1 Three-dimensional structural diagram of the middle and lower support section;

[0026] Figure 4 for Figure 1 Three-dimensional structural diagram of the upper and middle support sections;

[0027] Figure 5 for Figure 1 A three-dimensional structural diagram of the lifting and adjusting section;

[0028] Figure 6 for Figure 4 Three-dimensional structural diagram of the lifting vibration component;

[0029] The markings in the diagram are: 1-Lower support section; 101-Lower branch pipe; 102-Insertion hole; 103-Connecting pin; 104-Support base; 105-Foot nail one; 2-Upper support section; 201-Upper branch pipe; 202-Slot; 203-Support top seat; 204-Foot nail two; 3-Lifting adjustment section; 301-Clamping clamp; 302-Bolt; 303-Nut; 304-Turner; 4-Lifting vibration section; 401-Positioning rod; 402-Sliding sleeve; 403-Steel ball; 404-Spring; 405-Pull handle; 406-Screw; 407-Screw. Detailed Implementation

[0030] 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.

[0031] like Figures 1 to 2 As shown, a temporary support structure for coal mining includes a lower support section 1 and an upper support section 2 installed on top of the lower support section 1. A lifting adjustment section 3 is threadedly installed on the outside of the upper support section 2. A pull-type vibrating section 4 is installed inside the upper support section 2. By operating the pull-type vibrating section 4, coal dust hidden within the threads of the upper support section 2 can be dislodged. This temporary support structure for coal mining, by operating the pull-type vibrating section 4 to dislodge coal dust hidden within the threads of the upper support section 2, makes using the lifting adjustment section 3 less strenuous, prevents damage to the threads of the upper support section 2, and extends the service life of the upper support section 2.

[0032] like Figure 3 As shown, the lower support section 1 includes a lower branch pipe 101. Multiple insertion holes 102 are arranged in a vertical array on the wall of the lower branch pipe 101. A connecting pin 103 is inserted into one of the insertion holes 102. A support base 104 is connected to the bottom of the lower branch pipe 101. Multiple circumferentially arranged, downward-facing foot spikes 105 are inserted into the bottom of the support base 104. To achieve bottom support, the support base 104 provides support, while the lower branch pipe 101 provides support. The foot spikes 105 enhance grip.

[0033] like Figure 4As shown, the upper support section 2 includes an upper branch pipe 201. A slot 202, located within a threaded thread, is vertically formed on the wall of the upper branch pipe 201. A connecting pin 103, located within an insertion hole 102, is simultaneously inserted into the slot 202. A support top 203 is connected to the top of the upper branch pipe 201. Multiple circumferentially arrayed and upward-facing foot spikes 204 are inserted into the top of the support top 203. To achieve top support, the support top 203 provides support, while the upper branch pipe 201 provides further support. The foot spikes 204 enhance grip.

[0034] like Figure 5 As shown, the lifting adjustment part 3 includes a clamp 301 rotatably mounted on the threaded part of the upper branch pipe 201. The clamp 301 is located above the connecting pin 103. An opening is provided on one side of the clamp 301, and a bolt 302 and a nut 303 for adjusting the size of the opening are fitted to the open end of the clamp 301. A handle 304 is rotatably mounted on the end of the clamp 301 away from its opening. To achieve height adjustment, the connecting pin 103 is inserted into the insertion hole 102 of different heights, allowing for a wide range of height adjustment. By rotating the handle 304, the position of the clamp 301 is changed under the action of the thread, allowing for a small range of height adjustment.

[0035] like Figure 6 As shown, the lifting vibration part 4 includes a positioning rod 401 extending into the upper branch pipe 201. A sliding sleeve 402 that can slide out of the upper branch pipe 201 is installed on the positioning rod 401. The upper and lower ends of the sliding sleeve 402 are respectively connected to steel balls 403 that can impact the inner wall of the upper branch pipe 201. A spring 404 that pushes the steel balls 403 to impact the inner wall of the upper branch pipe 201 is installed on the positioning rod 401. Two pull handles 405 are connected to the upper and lower ends of the sliding sleeve 402 away from the steel balls 403. A screw 406 is connected to the end of the positioning rod 401. The screw 406 extends through the upper branch pipe 201. A screw 407 that completely tightens the positioning rod 401 is installed on the screw 406. In order to dislodge the coal dust, the handle 405 is pulled outward, at which time the spring 404 is compressed. At the moment the handle 405 is released, the steel ball 403 will hit the inner wall of the upper branch pipe 201 under the pushing force of the spring 404. At this time, the upper branch pipe 201 vibrates, which will dislodge the coal dust in the threaded wire.

[0036] The working principle of this utility model:

[0037] During coal mine tunneling, to prevent roof rock from loosening and falling due to mining operations, a support base 104 and a support top 203 are used for support, with lower branch pipe 101 and upper branch pipe 201 providing support respectively. Foot spike one 105 and foot spike two 204 enhance the grip. Figures 1 to 2 As shown, this achieves support for the roof rock.

[0038] Because the air in the coal mine contains a lot of coal dust, this coal dust will settle into the threaded wire. If a lifting operation is required later, by pulling the handle 405 outward, the spring 404 is compressed. When the handle 405 is released, the steel ball 403 will hit the inner wall of the upper branch pipe 201 under the pushing force of the spring 404. At this time, the upper branch pipe 201 vibrates, which will shake off the coal dust in the threaded wire. Then the lifting and lowering can be performed. In this way, it will be more labor-saving to use the lifting adjustment part 3, and it will not damage the threaded wire of the upper support part 2. It also extends the service life of the upper support part 2.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A temporary support structure for coal mining extraction, characterised in that: It includes a lower support section and an upper support section installed on top of the lower support section, wherein a lifting adjustment section is threadedly installed on the outside of the upper support section; Its characteristic is that: a lifting vibration part is installed inside the upper support part, and the coal dust hidden in the thread of the upper support part can be shaken off by operating the lifting vibration part.

2. A coal mine extraction temporary support structure according to claim 1, characterised in that: The lower support section includes a lower branch pipe, and the lower branch pipe has multiple insertion holes arranged in an array on its wall. A connecting pin is inserted into one of the insertion holes, and a support base is connected to the bottom of the lower branch pipe.

3. A coal mine extraction temporary support structure according to claim 2, characterised in that: The bottom of the support base is fitted with multiple circumferentially arrayed, downward-facing foot nails.

4. A coal mine extraction temporary support structure according to claim 3, characterised in that: The upper support includes an upper branch pipe, on which a slot located in the threaded wire is vertically opened on the pipe wall. A connecting pin located in the insertion hole is simultaneously inserted into the slot. A supporting top seat is connected to the top of the upper branch pipe.

5. The temporary support structure for coal mining according to claim 4, characterized in that: The top of the supporting base is fitted with multiple circumferentially arrayed and upward-facing foot nails.

6. The temporary support structure for coal mining according to claim 5, characterized in that: The lifting and adjusting part includes a clamp rotatably mounted on the threaded thread of the upper support pipe. The clamp is located above the connecting pin. An opening is provided on one side of the clamp. The opening end of the clamp is equipped with a bolt and nut for adjusting the size of the opening.

7. A coal mine extraction temporary support structure according to claim 6, characterised in that: The end of the clamp away from its opening is rotatably fitted with a handle.

8. The temporary support structure for coal mining according to claim 7, characterized in that: The lifting vibration part includes a positioning rod that extends into the upper branch pipe. A sliding sleeve that can slide out of the upper branch pipe is installed on the positioning rod. The upper and lower ends of the sliding sleeve are respectively connected to steel balls that can impact the inner wall of the upper branch pipe. A spring that pushes the steel balls to impact the inner wall of the upper branch pipe is installed on the positioning rod.

9. The temporary support structure for coal mining according to claim 8, characterized in that: The sliding sleeve is connected to two handles, one above and one below, at the end furthest from the steel ball.

10. A coal mine extraction temporary support structure according to claim 9, characterised in that: The end of the positioning rod is connected to a screw rod, which extends through the upper branch pipe and is fitted with a screw that fully tightens the positioning rod.

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