A coal mine underground roadway support rescue device

Abstract

The utility model relates to the technical field of coal mining roadway rescue, disclose a kind of coal mining underground roadway support rescue device, including roadway support plate mechanism, the roadway support plate mechanism includes main support plate, a plurality of storable, unfolded setting extension support plate are hinged on the main support plate;Extension support plate is pushed to overturn to unfolded support state by manual pushing structure;The bottom of main support plate is fixedly connected with bottom support;Manual pushing structure includes the hinge structure of fixed installation in the bottom outside of extension support plate, the hinge structure is rotatably connected with inclined push rod, hinged adjusting port is opened in the bottom support, and the hinged adjusting port is hinged with the hinged support of threaded connection inclined push rod;It further includes the lifting structure of lifting roadway support plate mechanism.The above structure realizes the temporary support structure in short time in the process of roadway rescue, and the structure flexibility is high, provides effective basis for saving rescue time.

Description

Technical Field

[0001] This utility model relates to the field of coal mine roadway rescue technology, and in particular to a support and rescue device for underground coal mine roadways. Background Technology

[0002] During coal mining operations, the mining area is often located in underground roadways. Because these roadways are situated below the strata, they are at risk of collapse. Therefore, current technology uses hydraulic support to maintain these roadways. However, in actual operation, it is impossible to provide completely seamless support, meaning that partial collapses can still occur.

[0003] The partial collapse of the tunnel buried personnel and equipment working inside, resulting in a coal mine accident. Therefore, once a partial tunnel collapse occurs, the collapsed area needs to be supported immediately to prevent secondary collapse. After support is provided, rescuers should quickly clear the collapsed soil and rock.

[0004] However, most of the support devices for underground mine roadways are currently fixed support systems. The main structure consists of a support plate at the top of the roadway and a hydraulic cylinder that drives the support plate to rise and fall. The overall weight is very large and it is impossible to move it. Therefore, it is impossible to quickly support the collapsed part during a rescue using this type of support device.

[0005] Moreover, this type of support structure relies on hydraulic devices for support, and the hydraulic system simply cannot be set up in a short time, which leads to a very slow progress in the rescue operation.

[0006] At the same time, the above-mentioned support structures used as conventional roadway support also have the defects of low mobility and flexibility. This is reflected in the large area of ​​the support plates, the difficulty in moving and setting up the support, and the fact that they are not suitable for temporary support in rescue environments.

[0007] Specifically, rescue support has high time requirements. It is necessary to support the collapsed tunnel in a short period of time and quickly clear the collapsed material to rescue the trapped people. Therefore, the requirements for the construction difficulty, construction efficiency, stability, safety and mobility of the support device are relatively high. Utility Model Content

[0008] Based on the above background, the purpose of this utility model is to provide a support and rescue device for underground roadways in coal mines.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A support and rescue device for underground roadways in coal mines includes a roadway support plate mechanism. The roadway support plate mechanism includes a main support plate, and a plurality of retractable and deployable extension support plates are hinged to the main support plate.

[0011] The extended support plate is manually pushed and flipped to the unfolded support state.

[0012] The bottom of the main support plate is fixedly connected to a bottom bracket;

[0013] The manual pushing structure includes a hinge structure fixedly installed on the outer side of the bottom of the extension support plate. The hinge structure is rotatably connected to an inclined push rod. The bottom bracket is provided with a hinge adjustment port, and a hinge support with a threaded connection to the inclined push rod is hinged in the hinge adjustment port.

[0014] It also includes the lifting structure of the lifting roadway support plate mechanism.

[0015] Preferably, the transverse cross-section of the main support plate is rectangular;

[0016] The main support plate is hinged with a pair of first extension support plates arranged laterally and a pair of second extension support plates arranged longitudinally.

[0017] Preferably, a pair of spaced-apart hinge seats are fixedly connected to the bottom inner sides of the first and second extended support plates, and a long hinge shaft is fixedly connected between the hinge seats. A fixed seat is fixedly connected to the outer side wall of the main support plate, and a pair of spaced-apart fixed hinge frames are fixedly installed on the fixed seat. The fixed hinge frames are hinged to the long hinge shaft.

[0018] Preferably, the hinge structure includes hinge seats that are fixedly connected to the outer bottom positions of the corresponding first extension support plate and the second extension support plate, respectively. A pin is fixedly connected inside the hinge seat, and a hinge sleeve is hinged on the pin.

[0019] The hinge sleeve is fixedly connected to an adapter for a limit-position rotating connection inclined push rod.

[0020] Preferably, the bottom support includes a pair of vertically arranged U-shaped support portions, the top of which is fixedly connected to a hinged support portion, and the hinge adjustment port is opened on the hinged support portion;

[0021] The top of the hinged bracket is fixedly connected to a mounting column, which is fixedly installed at the bottom of the main support plate.

[0022] Preferably, the lifting structure includes lifting column structures that are fixedly connected to both sides of the bottom of the bottom support;

[0023] The lifting column structures are fixedly connected by a connecting beam support, and a hand-push screw is threaded onto the connecting beam support. The upper end of the hand-push screw supports the bottom center position of the bottom bracket.

[0024] Preferably, the lifting column structure includes a lifting column fixedly connected to a bottom bracket, and the lifting column is slidably connected to a support column sleeve;

[0025] The connecting beam support is fixedly connected between the support column sleeves.

[0026] Preferably, a handle wheel is fixedly connected to the bottom of the push screw;

[0027] The upper end of the hand-operated screw is fixedly connected to a top head that is supported at the center of the bottom of the bottom bracket.

[0028] Preferably, a handle is fixedly connected to the bottom of the inclined push rod.

[0029] This utility model has the following beneficial effects:

[0030] 1. By designing a retractable and deployable support structure, the operator can store the extended support plate during the rescue process. As a result, the overall size of the main support plate, the first extended support plate, and the second extended support plate, which serve as the support structure, is small, which improves the convenience of transportation in narrow tunnels.

[0031] Upon reaching the collapse site, the edge support is placed along the top edge of the collapsed tunnel. The area is then cleared. After clearing a portion, the moving support structure continues clearing the debris until it is completely removed. This support structure ensures the safety of the rescue operation while effectively reducing the risk of secondary collapse at the collapse site.

[0032] 2. The detachable design of the entire device further reduces the mobility and flexibility of the device during rescue operations in narrow tunnels, enabling the support device to be quickly transported to the collapsed area within the tunnel.

[0033] 3. The four independent first and second extension support plates can be manually opened by pushing the structure, allowing for highly flexible on-site support deployment and increasing the support surface. This high flexibility of manual deployment enables rapid formation of roadway support, saving significant time for rescue operations. Attached Figure Description

[0034] 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 the structures shown in these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0036] Figure 2 This is a schematic diagram of the hinged structure of the extended support plate in an embodiment of this utility model;

[0037] Figure 3 This is a schematic diagram of the manually pushed structure in an embodiment of the present invention;

[0038] Figure 4 This is an embodiment of the present utility model. Figure 1 Front view in the middle;

[0039] Figure 5 This is an embodiment of the present utility model. Figure 1 Mid-top view;

[0040] Figure 6 This is a schematic diagram of the hinged structure on the extension support plate in an embodiment of the present utility model.

[0041] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] 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.

[0043] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0045] Example 1

[0046] like Figure 1-6As shown, a support and rescue device for underground roadways in coal mines includes a roadway support plate mechanism. The roadway support plate mechanism includes a main support plate 1, on which several retractable and deployable extension support plates are hinged. Specifically, the main support plate 1 has a rectangular cross-section. First extension support plates 2, arranged laterally, are hinged to the left and right side walls of the main support plate 1, and second extension support plates 3, arranged longitudinally, are hinged to the front and rear side walls of the main support plate 1.

[0047] Through a retractable and deployable structural design, the operators can store the extended support plates during the rescue process. As a result, the overall size of the main support plate 1, the first extended support plate 2, and the second extended support plate 3, which serve as the support structure, is small, which improves the convenience of transportation in narrow tunnels.

[0048] Upon reaching the collapse site, the edge support is placed along the top edge of the collapsed tunnel. The area is then cleared. After clearing a portion, the moving support structure continues clearing the debris until it is completely removed. This support structure ensures the safety of the rescue operation while effectively reducing the risk of secondary collapse at the collapse site.

[0049] The specific hinge method is as follows: a pair of spaced hinge lugs (consisting of a pair of lug plates) are fixedly connected to the inner bottom of the first extension support plate 2 and the second extension support plate 3 respectively. A long hinge shaft A is fixedly connected between the hinge lugs. A fixed seat 11 is fixedly connected to the outer side wall of the main support plate 1 respectively. A pair of spaced fixed hinge frames 111 (L-shaped, detachable by bolts) are fixedly installed on the fixed seat 11. The fixed hinge frames 111 are hinged to the long hinge shaft A.

[0050] Example 2

[0051] like Figure 1-6 As shown, this embodiment, based on the structure of Embodiment 1, abandons the traditional hydraulic structure drive to meet the requirements of high-efficiency rescue and to complete the support construction in a short time. Specifically, in the rescue support environment, hydraulic systems not only have complex hydraulic pipeline systems, but also take a long time to build, which cannot meet the timeliness requirements of rescue. The support device disclosed in this utility model is a temporary support for rescue, so it has high requirements for flexibility and high construction efficiency. Therefore, this utility model adopts the following structure to quickly unfold the first extended support plate 2 and the second extended support plate 3 as a temporary support device.

[0052] Specifically, the first extension support plate 2 and the second extension support plate 3 are flipped to the unfolded support state by manually pushing the structure.

[0053] Specifically, the bottom of the main support plate 1 is fixedly connected to a bottom bracket 4; the manual push structure includes a hinge structure fixedly installed on the outer side of the bottom of the extension support plate, the hinge structure is rotatably connected to an inclined push rod 7, the bottom bracket 4 is provided with a hinge adjustment port, and a hinge support 72 with a threaded connection to the inclined push rod 7 is hinged in the hinge adjustment port (specifically, the front and rear side walls of the hinge support 72 are respectively fixedly connected with pins hinged to the hinge adjustment port).

[0054] Specifically, the hinge structure includes hinge seats 71 fixedly connected to the outer bottom positions of the corresponding first extended support plate 2 and second extended support plate 3. A pin is fixedly connected inside the hinge seat 71, and a hinge sleeve 712 is hinged to the pin. An adapter 7121 for limiting the rotational connection of the inclined push rod 7 is fixedly connected to the hinge sleeve 712. Specifically, similar to the existing limiting rotational connection structure, the adapter 7121 has a T-shaped limiting groove. Correspondingly, the upper end of the inclined push rod 7 is the limiting rotation end of the T-shaped structure, and the limiting rotation is in the limiting groove of the T-shaped structure.

[0055] A handle 711 is fixedly connected to the bottom of the aforementioned inclined push rod 7.

[0056] The inclined push rod 7 has a threaded structure on its body and is threadedly connected to the hinged support 72. When the extended support plate needs to be deployed, the operator turns the handle 711. Under the action of the threaded pushing force, the inclined push rod 7 gradually moves upward and flips the extended support plate. During this process, since the lower end of the inclined push rod 7 is threadedly connected to the hinged support 72, as the inclined push rod 7 gradually flips the extended support plate upward, the hinged support 72 and the inclined push rod 7 also flip.

[0057] The above structure enables the support structure to be deployed manually. The manual operation method is highly flexible and simple in terms of mechanical structure, so the extended support plate can be deployed in a short time to complete the roadway support.

[0058] The bottom support 4 has the following shape and structure: the bottom support 4 includes a pair of vertically arranged U-shaped support parts, and the top of the U-shaped support parts is fixedly connected to a hinge support part 41, and the hinge adjustment port is opened on the hinge support part 41.

[0059] The top of the hinged bracket section 41 is fixedly connected to a mounting column, which is fixedly installed at the bottom of the main support plate 1. Specifically, in order to further facilitate the transfer of the entire device in narrow alleys, the support structure and the support structure are installed in a detachable manner.

[0060] To achieve on-site assembly, specifically, a top bracket is fixedly connected to the top of the mounting column 411, and the top bracket is fastened to the bottom of the main support plate 1 by bolts. This allows for disassembly during transport to the site for assembly.

[0061] Similarly, the following lifting structures also adopt a detachable design for easy transport and on-site assembly.

[0062] Example 3

[0063] like Figure 1-6 As shown, this embodiment, based on the structure of embodiment 2, also includes a lifting structure for the lifting roadway support plate mechanism.

[0064] During on-site support, after the extended support plate is unfolded in the manner described above, it should be quickly lifted and supported at the top of the tunnel using a lifting structure.

[0065] Specifically, the lifting structure includes lifting column structures that are fixedly connected to both sides of the bottom of the bottom support 4; a connecting beam support 5 is fixedly connected between the lifting column structures, and a hand-push screw 6 is threaded onto the connecting beam support 5, the upper end of the hand-push screw 6 supporting the bottom center position of the bottom support 4.

[0066] Specifically, the lifting column structure includes a lifting column 81 fixedly connected to the bottom bracket 4. Similarly, for easy transportation, the lifting column 81 is installed in a detachable manner. Specifically, a mounting seat is welded to the top of the lifting column 81, and the mounting seat is fastened to the bottom bracket 4 (the bottom position of the U-shaped bracket part) by bolts.

[0067] Similar to existing telescopic structures, the lifting column 81 is slidably connected to a support column sleeve 82 (supported on the ground, therefore a support base with an increased support surface is welded to the bottom of the lifting column 81). The aforementioned connecting beam support 5 is fixedly connected between the support column sleeves 82.

[0068] The bottom of the push screw 6 is fixedly connected to a handle wheel 61; at the same time, in order to increase the stability of the threaded connection beam support 5, the threaded tube of the push screw 6 is welded to the top of the aforementioned beam support 5.

[0069] The upper end of the aforementioned push screw 6 is fixedly connected to a top head that is supported at the bottom center of the bottom bracket 4.

[0070] The on-site assembly method is as follows: After assembling the above-mentioned lifting column 81 structure, the hand-pushing screw 6 is threaded to the connecting beam support 5, and the top support is placed at the bottom of the bottom bracket 4. Then, the operator assembles the main support plate 1 and unfolds the extension support plate according to the above embodiment. Then, the operator turns the handle wheel, and under the action of the threaded pushing force, the main support plate 1 and the extension support plate are gradually raised to support the roadway.

[0071] This method enables the flexible and temporary on-site erection of support structures, allowing for rapid formation of supports for clearing collapsed areas. Because the device can be assembled and erected quickly, it saves a significant amount of valuable time for mine rescue operations.

[0072] It should be noted that the support structure disclosed in this utility model is used as a temporary rescue support to reduce the risk of secondary collapse of the roadway and improve the safety of rescue personnel. However, it cannot replace conventional hydraulic support for roadways. The entire device is disassembled after the rescue is completed.

[0073] Example 4

[0074] like Figure 1-6 As shown, in this embodiment, based on the structure of embodiment 3, the first extended support plate 2 and the second extended support plate 3 are flipped and unfolded by independent inclined push rods 7. During the working process, the first extended support plate 2 or the second extended support plate 3 can be flipped into an inclined state and supported on the roadway wall to achieve the support of the roadway wall (the roadway wall and the roadway top are vertical structures).

[0075] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A coal mine underground roadway support rescue device, characterized in that, The system includes a roadway support plate mechanism, which includes a main support plate and a plurality of retractable and deployable extension support plates hinged to the main support plate. The extended support plate is manually pushed and flipped to the unfolded support state. The bottom of the main support plate is fixedly connected to a bottom bracket; The manual pushing structure includes a hinge structure fixedly installed on the outer side of the bottom of the extension support plate. The hinge structure is rotatably connected to an inclined push rod. The bottom bracket is provided with a hinge adjustment port, and a hinge support with a threaded connection to the inclined push rod is hinged in the hinge adjustment port. It also includes the lifting structure of the lifting roadway support plate mechanism.

2. The coal mine underground roadway supporting and rescuing device according to claim 1, characterized in that, The transverse cross-section of the main support plate is rectangular; The main support plate is hinged with a pair of first extension support plates arranged laterally and a pair of second extension support plates arranged longitudinally.

3. The coal mine underground roadway supporting and rescuing device according to claim 2, characterized in that, The bottom inner sides of the first and second extended support plates are respectively fixedly connected with a pair of spaced-apart hinge seats, and a long hinge shaft is fixedly connected between the hinge seats. The outer side walls of the main support plate are respectively fixedly connected with fixed seats, and a pair of spaced-apart fixed hinge frames are fixedly installed on the fixed seats. The fixed hinge frames are hinged to the long hinge shaft.

4. The coal mine underground roadway supporting and rescuing device according to claim 2, characterized in that, The hinge structure includes hinge seats that are fixedly connected to the bottom outer side of the corresponding first extension support plate and second extension support plate, respectively. A pin is fixedly connected inside the hinge seat, and a hinge sleeve is hinged on the pin. The hinge sleeve is fixedly connected to an adapter for a limit-position rotating connection inclined push rod.

5. The coal mine underground roadway support rescue device according to claim 4, characterized in that, The bottom support includes a pair of vertically arranged U-shaped support portions, and the top of each U-shaped support portion is fixedly connected to a hinge support portion, and the hinge adjustment port is opened on the hinge support portion; The top of the hinged bracket is fixedly connected to a mounting column, which is fixedly installed at the bottom of the main support plate.

6. The coal mine underground roadway support rescue device according to claim 5, characterized in that, The lifting structure includes lifting column structures that are fixedly connected to both sides of the bottom of the bottom support; The lifting column structures are fixedly connected by a connecting beam support, and a hand-push screw is threaded onto the connecting beam support. The upper end of the hand-push screw supports the bottom center position of the bottom bracket.

7. The coal mine underground roadway support rescue device according to claim 6, characterized in that, The lifting column structure includes a lifting column fixedly connected to a bottom bracket, and a support column sleeve slidably connected to the lifting column; The connecting beam support is fixedly connected between the support column sleeves.

8. The coal mine underground roadway supporting and rescuing device according to claim 6, characterized in that, A handle wheel is fixedly connected to the bottom of the hand-push screw; The upper end of the hand-operated screw is fixedly connected to a top head that is supported at the center of the bottom of the bottom bracket.

9. The coal mine underground roadway support rescue device according to claim 1, characterized in that, A handle is fixedly connected to the bottom of the inclined push rod.

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