Temporary side protecting device for hydraulic support of low-mining-height working face

Abstract

The utility model discloses a low mining height working face hydraulic support temporary side protection device which comprises a top side protection (1), the bottom of the top side protection (1) is provided with a side side protection (2) which is rotatably connected and matched with the top side protection (1), and the bottom of the top side protection (1) is provided with a hydraulic push rod (3) which is rotatably connected and matched with the top side protection (1). The end part of the hydraulic push rod (3) is fixedly arranged on the push-pull type protection top plate, and a diagonal bracing device is arranged between the top protection side (1) and the side protection side (2). According to the utility model, the manpower, material resources and time cost for temporarily reinforcing the support when workers work on the front side of the working face are effectively reduced, the problem of high difficulty of long-term retaining of the protective side on the low-mining-height working face of the thin coal seam is effectively solved, the operation is convenient, and the production operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to related technical field, specifically relates to low mining high working face hydraulic support temporary help device. BACKGROUND

[0002] When mining medium thick and thin coal seam in coal mine, the working face mining height is generally 1.8-2.2m. Because the mining height is low, the working face supporting hydraulic support has no help plate. In the daily maintenance process, when close to the normal operation such as replacing coal machine pick, there is the safety risk of coal wall spalling injury to the staff. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing low mining high working face hydraulic support temporary help device, and it can effectively solve the problems in the background art.

[0004] In order to solve the problems in the background art, it contains a top help 1, the bottom of the top help 1 is provided with the side help 2 that is rotatably connected with it, the bottom of the top help 1 is provided with a hydraulic push rod 3 that is rotatably connected with it, the end of the hydraulic push rod 3 is fixedly installed on the push-pull type roof plate, and the top help 1 and the side help 2 are provided with inclined strut devices.

[0005] The inclined strut device contains an inclined strut connecting rod 4, the inclined strut connecting rod 4 is rotatably connected with the shaft seat 5 through a hinge shaft, the shaft seat 5 is fixedly installed at the lower bottom surface of the top help 1, and a plurality of equidistantly arranged positioning strips 6 are welded on the inner side surface of the side help 2.

[0006] The lower bottom surface of the top help 1 is welded with two mutually symmetrical pin shaft seats 7, the end of the inclined strut connecting rod 4 can be placed in one of the pin shaft seats 7, and the two pin shaft seats 7 are provided with a pin shaft 8 that is screwedly connected with them.

[0007] The side help 2 is provided with a pin shaft hole 9 that can pass through the gap of the pin shaft seat 7 and a shaft seat hole 10 that can pass through the gap of the shaft seat 5, and the length of the pin shaft 8 is greater than the width of the pin shaft hole 9.

[0008] The lower bottom surface of the top help 1 is welded with a cylinder seat 11 that is rotatably connected with the hydraulic push rod 3, and the side help 2 is provided with a cylinder groove 12 that can pass through the gap of the hydraulic push rod 3.

[0009] Due to the adoption of the above technical scheme, the utility model has the following beneficial effects:

[0010] 1. The utility model effectively reduces the manpower, material resources and time cost of temporarily strengthening support when the staff works on the face side, effectively solves the problem of long-term left over difficult support of thin coal seam low mining high working face, and the operation is convenient, and the production operation efficiency is improved;

[0011] 2. The safety of personnel working in the coal wall side area is ensured, and personnel injury caused by coal wall spalling when the working face is pressed is avoided. DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of the drawings.

[0013] Fig. 1 It is the bottom structure schematic view of the utility model;

[0014] Fig. 2 It is the side structure schematic view of the utility model;

[0015] Fig. 3 It is the opening and closing schematic view of the top support and side support of the utility model. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model.

[0017] Referring to Figs. 1-3 , the specific embodiment is realized by adopting the following technical scheme, it contains a top support 1, the bottom of the top support 1 is provided with the side support 2 that is rotationally connected with it, the bottom of the top support 1 is provided with a hydraulic push rod 3 that is rotationally connected with it, the end of the hydraulic push rod 3 is fixedly installed on the push-pull type roof plate, the top support 1 and the side support 2 are provided with inclined strut devices.

[0018] The inclined strut device contains an inclined strut connecting rod 4, the inclined strut connecting rod 4 is rotationally connected with the shaft seat 5 through a hinge shaft, the shaft seat 5 is fixedly installed at the lower bottom surface of the top support 1, a plurality of equidistantly arranged positioning strips 6 are welded on the inner side surface of the side support 2;

[0019] Two mutually symmetrical pin shaft seats 7 are welded on the lower bottom surface of the top guard 1, and the end of the diagonal brace link 4 can be placed in one of the pin shaft seats 7, and a pin shaft 8 is arranged between the two pin shaft seats 7 and is in screwing engagement with the pin shaft seats 7.

[0020] The side guard 2 is provided with a pin shaft hole 9 through which the pin shaft seat 7 can pass and a shaft seat hole 10 through which the shaft seat 5 can pass, and the length of the pin shaft 8 is greater than the width of the pin shaft hole 9.

[0021] The lower bottom surface of the top guard 1 is welded with a cylinder seat 11 which is rotationally connected with the hydraulic push rod 3, and the side guard 2 is provided with a cylinder groove 12 through which the hydraulic push rod 3 can pass.

[0022] The use method and principle of the technical scheme in the embodiment will be further described below in combination with the drawings:

[0023] When the staff needs to work on the normal side, the pin shaft 8 can be rotated out of the pin shaft seat 7, at this time, the pin shaft seat 7 is completely separated from the pin shaft hole 9, then the diagonal brace link 4 is separated from one of the pin shaft seats 7, and then the end of the diagonal brace link 4 is placed on the positioning strip 6, so that the triangular stable structure can be used to temporarily support the coal side.

[0024] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A temporary support device for low cutting height hydraulic support in a coal mining face, characterized in that It contains a top guard (1), the bottom of the top guard (1) is provided with a side guard (2) which is rotationally connected with it, the bottom of the top guard (1) is provided with a hydraulic push rod (3) which is rotationally connected with it, the end of the hydraulic push rod (3) is fixedly installed on the push-pull type roof board, and the top guard (1) and the side guard (2) are provided with a diagonal bracing device.

2. The temporary support device for low-seam face hydraulic supports according to claim 1, characterised in that The diagonal bracing device contains a diagonal bracing connecting rod (4) which is rotationally connected with an axle seat (5) through a hinge shaft, the axle seat (5) is fixedly installed at the lower bottom surface of the top guard (1), and the inner side surface of the side guard (2) is welded with a plurality of equidistantly arranged positioning strips (6). The lower bottom surface of the top guard (1) is welded with two mutually symmetrical pin axle seats (7), the end of the diagonal bracing connecting rod (4) can be placed in one of the pin axle seats (7), and the two pin axle seats (7) are provided with a pin axle (8) which is screwingly connected with them.

3. The temporary support device for low-seam face hydraulic supports according to claim 1, characterised in that The side guard (2) is provided with a pin axle hole (9) which can allow the pin axle seat (7) to pass through with clearance and an axle seat hole (10) which can allow the axle seat (5) to pass through with clearance, and the length of the pin axle (8) is greater than the width of the pin axle hole (9).

4. The temporary support device of claim 1, wherein The lower bottom surface of the top guard (1) is welded with a cylinder seat (11) which is rotationally connected with the hydraulic push rod (3), and the side guard (2) is provided with a cylinder groove (12) which can allow the hydraulic push rod (3) to pass through with clearance.

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