CN221096565U - Small-size coal seam coal pillar convenient to assemble - Google Patents

Abstract

The utility model discloses a small coal seam coal pillar with convenient assembly, which belongs to the technical field of coal pillars and comprises a fixing component, wherein the fixing component comprises a coal pillar body, four sliding grooves are formed in the side face of the coal pillar body, sliding strips are connected to the upper side of the inner wall of each sliding groove in a sliding way, a first pressure spring is fixedly connected to the bottom face of each sliding strip, the bottom end of each first pressure spring is fixedly connected with the bottom face of the inner wall of each sliding groove, a C-shaped block is fixedly connected to the side face of each sliding strip, the side face of the inner wall of each C-shaped block is rotationally connected with a fixing strip, the C-shaped block is driven to move downwards through a rectangular frame, the four sliding strips are simultaneously driven to slide downwards towards the inner wall of each sliding groove, the fixing strips with inclined faces are extruded on the first pressure springs, the four rectangular frames are simultaneously outwards opened, expansion bolts are inserted into the ground through threaded grooves on the side faces of the inner wall of the fixing strips, and then four cylinders are moved into through the through grooves and clamped in the annular grooves, and the coal pillar body can be assembled and fixed.

Description

Small-size coal seam coal pillar convenient to assemble

Technical Field

The utility model relates to the technical field of coal pillars, in particular to a small-sized coal pillar with convenient assembly.

Background

The part which is left to be not mined on the mining surface during coal mining is a coal pillar for safety, so that the coal pillar is an important standard for measuring the mining rate of a mining area, is an important index for coal safety production, is serious in deformation and damage of surrounding rocks of a coal mining roadway, and can directly influence the advancing efficiency of underground mining work due to poor stability of the coal pillar, the unsafe coefficient of underground mining work is increased, the coal pillar is protected from being influenced by larger supporting pressure, secondary mining and the like, so that the mining risk is obviously increased due to loose coal body and crack distribution in partial areas, and personal casualty accidents can occur even when serious.

The prior patent (bulletin number: CN 215520972U) discloses a fixing device of a roadway piece narrow coal pillar, which comprises a bottom plate, a base, an outer guard plate, a hydraulic rod and a supporting inclined rod, wherein the narrow coal pillar is fixedly connected to the top end of the base, the top end of the narrow coal pillar is fixedly connected with a top plate, the surface of a pillar body of the coal mining pillar is even provided with the outer guard plate, the pressure is adjusted by matching with the hydraulic rod through a triangular structure formed by the supporting inclined rod, the base and a vertical plate, the stability of the outer part of the narrow coal pillar is greatly improved, and the narrow coal pillar is fixed by grouting between the outer guard plate and the narrow coal pillar, so that the stability of the inner part of the narrow coal pillar is effectively protected. However, the technical scheme still has the defects, and the technical scheme is as follows:

According to the device, the outer guard plate and the narrow coal pillar are subjected to grouting, so that the coal pillar is fixed, but the device can ensure the supporting effect of the coal pillar after the grouting is completely dried and fixed for a certain time, and the coal pillar is fixed in a time-consuming manner. To this end, we propose a small coal seam pillar which is easy to assemble to solve the above mentioned problems.

Disclosure of utility model

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

Therefore, the utility model aims to provide a small-sized coal seam coal pillar convenient to assemble, which can solve the problems that the prior coal pillar is fixed by grouting between an outer guard plate and a narrow coal pillar, but the device can ensure the supporting effect of the coal pillar only by completely drying and solidifying grouting for a certain time when the coal pillar is fixed, and the problem that the coal pillar is time-consuming to fix is solved.

In order to solve the technical problems, the utility model provides a small coal seam coal pillar convenient to assemble, which adopts the following technical scheme: the coal pillar comprises a fixing assembly, wherein the fixing assembly comprises a coal pillar body, four sliding grooves are formed in the side face of the coal pillar body, a sliding strip is slidingly connected to the upper side of the inner wall of each sliding groove, a first pressure spring is fixedly connected to the bottom face of each sliding strip, the bottom end of each first pressure spring is fixedly connected with the bottom face of the inner wall of each sliding groove, a C-shaped block is fixedly connected to the side face of each sliding strip, a fixing strip is rotatably connected to the side face of the inner wall of each C-shaped block, a first tension spring is fixedly connected to the side face of each fixing strip, and one end of each first tension spring is fixedly connected with the lower side of each C-shaped block;

The quick detach subassembly, it includes the rectangle frame, the top surface fixed connection of the horizontal piece of rectangle frame bottom surface and four C shape pieces, the side of rectangle frame inner wall and the side sliding connection of coal pillar body, the elongated slot has all been seted up to the front and back both sides of rectangle frame top surface, the side sliding connection of elongated slot inner wall has the T shape strip, the side fixedly connected with second pressure spring of the vertical bar of T shape strip, the side fixed connection of one end and elongated slot inner wall of second pressure spring, the left and right sides of the horizontal bar of T shape strip is all fixedly connected with arc strip, the fixed long frame that has cup jointed of side of coal pillar body, the top surface fixedly connected with cylinder of long frame, the ring channel has been seted up to the side of cylinder, logical groove has been seted up to the upside of rectangle frame.

Through adopting above-mentioned technical scheme, this scheme is through four arc strip joint in the ring channel, can be fixed to the assembly of coal pillar body, and can dismantle the coal pillar body fast.

Optionally, the diameter of the inner wall of the annular groove is equal to the diameter of the inner side of the arc-shaped strip, and the side surface of the arc-shaped strip is in sliding connection with the side surface of the inner wall of the annular groove.

Through adopting above-mentioned technical scheme, this scheme can block the side at the ring channel through the arc strip, conveniently fixes the rectangle frame.

Optionally, the upper side of the long frame is rounded, and the bottom surface of the fixing strip is provided with a bevel angle of 40 degrees.

Through adopting above-mentioned technical scheme, this scheme can be in on the same horizontal plane with ground when deflecting downwards with ground contact through the fixed strip that the bottom surface is the inclined plane.

Optionally, the bottom surface of fixed strip is connected with the upper side slip of long frame, the screw thread groove has been seted up to the side of fixed strip.

Through adopting above-mentioned technical scheme, this scheme can be fixed the fixed strip through bolt and thread groove.

Optionally, the bottom surface fixedly connected with supporting seat of coal pillar body, the shape of the cross section of supporting seat is isosceles trapezoid.

Through adopting above-mentioned technical scheme, this scheme is great through the area of contact between isosceles trapezoid's supporting seat and the bottom surface, and supporting stability is better.

Optionally, the top surface fixedly connected with backup pad of coal pillar body.

Through adopting above-mentioned technical scheme, this scheme has increased the area of support of coal pillar body through the backup pad.

Optionally, the cross section of the chute is T-shaped, the sliding strip is in sliding connection with the side surface of the inner wall of the transverse chute of the T-shaped chute, and the side surface of the C-shaped block is in sliding connection with the side surface of the inner wall of the vertical chute of the T-shaped chute.

Through adopting above-mentioned technical scheme, this scheme can be at the vertical reciprocates of spout inner wall side of T shape through draw runner and C shape piece.

Optionally, the inside of coal pillar body is fixed to peg graft has the strengthening rib.

Through adopting above-mentioned technical scheme, this scheme has increased the holistic toughness of coal pillar body through the strengthening rib.

In summary, the present utility model includes at least one of the following beneficial effects: 1. the C-shaped block and the fixing strips are driven to move downwards through the rectangular frame, the four sliding strips are driven to slide downwards towards the lower side of the inner wall of the sliding groove, the first pressure spring is extruded, the fixing strips with inclined surfaces on the four bottom surfaces are in contact with the upper side of the long frame, the four rectangular frames are outwards opened at the same time, the expansion bolts are inserted into the ground through the thread grooves on the side surfaces of the inner wall of the fixing strips, the four cylinders are then moved into the through grooves, and the four arc strips are clamped in the annular grooves, so that the coal pillar body can be assembled and fixed;

2. Materials such as expansion bolts are detached from the side face of the inner wall of the thread groove, two T-shaped strips are stretched to the front side and the rear side, the second pressure springs are extruded, and meanwhile the arc-shaped strips are moved out of the side face of the inner wall of the annular groove to release the fixation of the rectangular frame, so that the rectangular frame drives the slide strips, the C-shaped blocks and the fixing strips to slide upwards through the resilience force of the first pressure springs, and the coal pillar body can be detached rapidly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a partial perspective view of a rectangular frame of the present utility model;

FIG. 3 is a partial perspective sectional view of the coal pillar body of the present utility model;

Fig. 4 is a partial perspective view of a quick release assembly according to the present utility model.

Reference numerals illustrate: 100. a fixing assembly; 101. a coal pillar body; 101a, a supporting seat; 101b, a support plate; 102. a chute; 103. a slide bar; 104. a first compression spring; 105. a C-shaped block; 106. a fixing strip; 107. a first tension spring;

200. A quick release assembly; 201. a rectangular frame; 202. a long groove; 203. a T-bar; 204. a second compression spring; 205. an arc-shaped strip; 206. a long frame; 207. a cylinder; 208. an annular groove; 209. and (5) through grooves.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

1-4, In order to solve the problem that the prior art can fix the coal pillar by grouting between the outer guard plate and the narrow coal pillar, the device can ensure the supporting effect of the coal pillar only by completely drying and fixing the grouting for a certain time, which results in time-consuming fixation of the coal pillar, the utility model discloses a small coal seam coal pillar with convenient assembly,

Comprises a fixing component 100, which comprises a coal pillar body 101, wherein the bottom surface of the coal pillar body 101 is fixedly connected with a supporting seat 101a, the cross section of the supporting seat 101a is isosceles trapezoid, the contact area between the isosceles trapezoid supporting seat 101a and the bottom surface is larger, the supporting stability is better, the top surface of the coal pillar body 101 is fixedly connected with a supporting plate 101b, the cross section of a sliding chute 102 is T-shaped, a sliding strip 103 is in sliding connection with the side surface of the inner wall of a transverse groove of the T-shaped sliding chute 102, the side surface of a C-shaped block 105 is in sliding connection with the side surface of the inner wall of a vertical groove of the T-shaped sliding chute 102, four sliding chutes 102 are arranged on the side surface of the coal pillar body 101, the sliding strip 103 and the C-shaped block 105 can vertically move upwards and downwards on the side surface of the inner wall of the T-shaped sliding chute 102, a reinforcing rib is fixedly inserted in the coal pillar body 101, the bottom surface of the sliding strip 103 is fixedly connected with a first pressure spring 104, the bottom end of the first compression spring 104 is fixedly connected with the bottom surface of the inner wall of the chute 102, the side surface of the sliding bar 103 is fixedly connected with a C-shaped block 105, the side surface of the inner wall of the C-shaped block 105 is rotationally connected with a fixing bar 106, the side surface of the fixing bar 106 is fixedly connected with a first tension spring 107, one end of the first tension spring 107 is fixedly connected with the lower side of the C-shaped block 105, the quick-release assembly 200 comprises a rectangular frame 201, the bottom surface of the rectangular frame 201 is fixedly connected with the top surfaces of the transverse blocks of the four C-shaped blocks 105, the side surface of the inner wall of the rectangular frame 201 is slidingly connected with the side surface of the coal pillar body 101, the front side and the rear side of the top surface of the rectangular frame 201 are respectively provided with a long groove 202, the side surface of the inner wall of the long groove 202 is slidingly connected with a T-shaped bar 203, the side surface of a vertical bar of the T-shaped bar 203 is fixedly connected with a second compression spring 204, one end of the second compression spring 204 is fixedly connected with the side surface of the inner wall of the long groove 202, the left side and right side of the transverse bar of the T-shaped bar 203 is fixedly connected with arc-shaped bars 205, the side of coal pillar body 101 is fixed to be cup jointed long frame 206, and the top surface fixedly connected with cylinder 207 of long frame 206, and ring channel 208 has been seted up to the side of cylinder 207, and the diameter of ring channel 208 inner wall equals with the inboard diameter of arc strip 205, and the side sliding connection of arc strip 205 and ring channel 208 inner wall, arc strip 205 can block the side at ring channel 208, conveniently fixes rectangular frame 201, and logical groove 209 has been seted up to rectangular frame 201's upside.

The specific working principle is as follows: when the coal pillar body 101 needs to be fixed, firstly the coal pillar body 101 is placed at a proper position, secondly the rectangular frame 201 drives the four C-shaped blocks 105 and the four fixing strips 106 to move downwards, meanwhile drives the four sliding strips 103 to slide towards the lower side of the inner wall of the chute 102, the first pressure spring 104 is extruded, the four fixing strips 106 with inclined surfaces at the bottom are in contact with the upper side of the long frame 206, the four rectangular frames 201 can be opened outwards at the same time, fixing pieces such as expansion bolts are inserted into the ground through thread grooves on the side surfaces of the inner wall of the fixing strips 106, secondly the four cylinders 207 are moved to the side surfaces of the inner wall of the through groove 209, and the four arc-shaped strips 205 are clamped on the side surfaces of the inner wall of the annular groove 208, so that the coal pillar body 1101 can be assembled and fixed rapidly.

1-4, In order to solve the problem that the existing coal pillar is difficult to be disassembled due to the fact that the existing coal pillar is fixed by using materials such as slurry, the small-sized coal seam coal pillar with convenient assembly further comprises:

The bottom surface fixedly connected with first pressure spring 104 of draw runner 103, the bottom of first pressure spring 104 and the bottom surface fixed connection of spout 102 inner wall, the side fixedly connected with C shape piece 105 of draw runner 103, the side of C shape piece 105 inner wall rotates and is connected with fixed strip 106, the side fixedly connected with first extension spring 107 of fixed strip 106, the one end of first extension spring 107 and the downside fixed connection of C shape piece 105, quick detach subassembly 200, it includes rectangular frame 201, the bottom surface of rectangular frame 201 and the top surface fixed connection of the horizontal piece of four C shape pieces 105, rectangular frame 201 inner wall's side and coal column body 101's side sliding connection, elongated slot 202 has all been seted up to rectangular frame 201's top surface's front and back both sides, elongated slot 202's side sliding connection has T shape piece 203, the side fixedly connected with second pressure spring 204 of the vertical bar of T shape piece 203, the side fixed connection of second pressure spring 204 and the side of elongated slot 202 inner wall, the left and right sides of the horizontal bar of T shape piece 203 all is fixedly connected with arc-shaped strip 205, the side fixed connection of coal column body 101 has long frame 206, the top surface fixed connection of rectangular frame 206, the side of rectangular frame 207 has been seted up on the side of rectangular frame 207 has the cylinder 209, the cylinder groove is seted up on the side 209.

The specific working principle is as follows: firstly, materials such as expansion bolts and the like are dismounted from the side surface of the inner wall of the thread groove, two vertical strips of the T-shaped strips 203 are simultaneously stretched to the front side and the rear side, so that two second pressure springs 204 are extruded by the two vertical strips of the T-shaped strips 203, meanwhile, the arc-shaped strips 205 are moved out from the side surface of the inner wall of the annular groove 208, the fixation of the rectangular frame 201 can be relieved, the rectangular frame 201 drives the sliding strips 103, the C-shaped blocks 105 and the fixing strips 106 to slide upwards through the rebound force of the first pressure springs 104, and the dismounting of the coal pillar body 101 can be rapidly completed.

Referring to fig. 1-4, in order to solve the problem that the existing partial coal pillar has poor overall support stability in this embodiment, based on the same concept as the first embodiment, the small-size coal pillar with convenient assembly further includes:

The fixing assembly 100 comprises a coal pillar body 101, a supporting plate 101b is fixedly connected to the top surface of the coal pillar body 101, the cross section of a sliding groove 102 is T-shaped, a sliding bar 103 is slidably connected with the side surface of the inner wall of a transverse groove of the T-shaped sliding groove 102, the side surface of a C-shaped block 105 is slidably connected with the side surface of the inner wall of a vertical groove of the T-shaped sliding groove 102, four sliding grooves 102 are formed in the side surface of the coal pillar body 101, the sliding bar 103 is slidably connected to the upper side of the inner wall of the sliding groove 102, a first pressure spring 104 is fixedly connected to the bottom surface of the sliding bar 103, the bottom end of the first pressure spring 104 is fixedly connected with the bottom surface of the inner wall of the sliding groove 102, a C-shaped block 105 is rotatably connected with a fixing bar 106, the bottom surface of the fixing bar 106 is slidably connected with the upper side of a long frame 206, a threaded groove is formed in the side surface of the fixing bar 106, a supporting seat 101a is fixedly connected to the bottom surface of the coal pillar body 101, and the cross section of the supporting seat 101a is isosceles trapezoid.

The specific working principle is as follows: the coal pillar body 101 is supported by the supporting seat 101a with the isosceles trapezoid cross section, and then after the coal pillar body 101 is fixed, the coal pillar body 101 can be changed into multidirectional stress by contacting the lower sides and the bottom surfaces of the four fixing strips 106, so that the supporting effect of the coal pillar body 101 is ensured, and the overall supporting stability of the coal pillar body 101 is better.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a small-size coal seam coal column of equipment convenience which characterized in that: comprising the steps of (a) a step of,

The fixing assembly (100) comprises a coal pillar body (101), four sliding grooves (102) are formed in the side face of the coal pillar body (101), sliding strips (103) are connected to the upper side of the inner wall of each sliding groove (102) in a sliding mode, first pressure springs (104) are fixedly connected to the bottom faces of the sliding strips (103), C-shaped blocks (105) are fixedly connected to the bottom ends of the first pressure springs (104) and the bottom faces of the inner walls of the sliding grooves (102), fixing strips (106) are rotatably connected to the side face of the inner wall of each C-shaped block (105), first tension springs (107) are fixedly connected to the side face of each fixing strip (106), and one end of each first tension spring (107) is fixedly connected to the lower side of each C-shaped block (105);

Quick detach subassembly (200), it includes rectangle frame (201), the top surface fixed connection of the horizontal piece of bottom surface and four C shape piece (105) of rectangle frame (201), the side of rectangle frame (201) inner wall and the side sliding connection of coal pillar body (101), elongated slot (202) have all been seted up to the front and back both sides of rectangle frame (201) top surface, the side sliding connection of elongated slot (202) inner wall has T shape strip (203), the side fixedly connected with second pressure spring (204) of the vertical bar of T shape strip (203), the side fixed connection of one end and elongated slot (202) inner wall of second pressure spring (204), the left and right sides of the horizontal bar of T shape strip (203) is all fixedly connected with arc strip (205), the side fixed sleeve of coal pillar body (101) has long frame (206), the top surface fixedly connected with cylinder (207) of long frame (206), annular groove (208) have been seted up to the side of cylinder (207), logical groove (209) have been seted up to the upside of rectangle frame (201).

2. A compact coal seam pillar of easy assembly according to claim 1, wherein: the diameter of the inner wall of the annular groove (208) is equal to the diameter of the inner side of the arc-shaped strip (205), and the side surface of the arc-shaped strip (205) is in sliding connection with the side surface of the inner wall of the annular groove (208).

3. A compact coal seam pillar of easy assembly according to claim 1, wherein: the upper side of the long frame (206) is subjected to round corner treatment, and a 40-degree chamfer angle is formed in the bottom surface of the fixing strip (106).

4. A compact coal seam pillar of easy assembly according to claim 1, wherein: the bottom surface of the fixing strip (106) is connected with the upper side of the long frame (206) in a sliding mode, and a thread groove is formed in the side surface of the fixing strip (106).

5. A compact coal seam pillar of easy assembly according to claim 1, wherein: the coal pillar is characterized in that a supporting seat (101 a) is fixedly connected to the bottom surface of the coal pillar body (101), and the cross section of the supporting seat (101 a) is isosceles trapezoid.

6. A compact coal seam pillar of easy assembly according to claim 1, wherein: the top surface of coal pillar body (101) fixedly connected with backup pad (101 b).

7. A compact coal seam pillar of easy assembly according to claim 1, wherein: the cross section of the sliding groove (102) is T-shaped, the sliding strip (103) is in sliding connection with the side face of the inner wall of the transverse groove of the T-shaped sliding groove (102), and the side face of the C-shaped block (105) is in sliding connection with the side face of the inner wall of the vertical groove of the T-shaped sliding groove (102).

8. A compact coal seam pillar of easy assembly according to claim 1, wherein: reinforcing ribs are fixedly inserted into the coal pillar body (101).