Supporting device for mine safety protection

Abstract

The utility model belongs to the technical field of mine roadway supporting equipment, and particularly relates to a supporting device for mine safety protection. According to the technology, two column legs are vertically arranged, the number of the column legs is two, the column legs are arranged left and right, a top beam of an arc-shaped structure is arranged above the column legs, and the tops of the column legs are each provided with a groove used for allowing the end of the top beam to be inserted in; a limiting block is arranged on one side of each column leg, an inserting rod is horizontally fixed to each limiting block, two first through holes allowing the inserting rods to penetrate are symmetrically formed in each column leg, and the first through holes communicate with the interior of the groove; second through holes for the insertion rods to penetrate through are formed in the end parts of the top beams; when the end part of the top beam is positioned in the groove, the center lines of the first through hole and the second through hole are positioned on the same straight line; the column legs are provided with locking assemblies used for locking the inserting rods penetrating into the first through holes and the second through holes. According to the utility model, the installation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine tunnel support equipment, in particular to a support device for mine safety protection. Background Art

[0002] In order to mine coal, mines need to excavate tunnels and then transport the coal through the tunnels. During the use of the tunnels, in order to prevent the tunnels from collapsing and deforming and to ensure the stability and safety of the tunnels, support devices are used to support the tunnels to ensure the safety of the tunnels and achieve the purpose of safety protection.

[0003] At present, most of the existing support devices adopt U-shaped steel brackets, which are mainly composed of a top beam and two column legs. The top beam is an arc arch and the column legs are straight segments. The U-shaped steel brackets need to be assembled before use. During assembly, the two ends of the top beam are respectively fixed to the two column legs by cable clamps. The cable clamps are composed of a cable clamp plate and two bolts. When in use, one end of the top beam and one end of the column leg are placed in the cable clamp plate, and then the top beam and the column leg can be fixed together by tightening the two bolts. In order to ensure the stability of the connection between the top beam and the column leg, two sets of cable clamps are installed at the connection between the top beam and the column leg. Through the above connection method, although the top beam and the column leg can be connected together, the two bolts of the cable clamp need to be screwed each time they are installed. At the same time, when multiple sets of cable clamps are installed, multiple bolts need to be screwed in multiples. In addition, in the process of tunnel installation, multiple sets of top beams and column legs need to be installed, so the bolts need to be tightened back and forth many times, resulting in low efficiency during installation. Utility Model Content

[0004] The purpose of the utility model is to provide a supporting device for mine safety protection, which can improve the efficiency of installing the top beam and column legs as much as possible.

[0005] The support device for mine safety protection includes vertically arranged column legs, there are two column legs and they are arranged left and right, a top beam with an arc-shaped structure is arranged above the column legs, and a groove for inserting the end of the top beam is provided on the top of the column legs; a limit block is provided on one side of the column leg, and a plug rod is horizontally fixed on the limit block, and two first through holes for inserting the plug rod are symmetrically provided on the column legs, and the first through hole is communicated with the inside of the groove; a second through hole for inserting the plug rod is provided at the end of the top beam; when the end of the top beam is located in the groove, the center lines of the first through hole and the second through hole are located on the same straight line; a locking component is provided on the column leg for locking the plug rod inserted into the first through hole and the second through hole.

[0006] Furthermore, the locking assembly includes two fixing blocks arranged in front and back; the fixing blocks are fixed on the column leg on the side away from the limit block, and the movable end of the insertion rod passes through the first through hole and the second through hole and is located between the two fixing blocks; a screw is horizontally arranged between the two fixing blocks, and the insertion rod is provided with a first through hole for the screw to pass through independently, one of the fixing blocks is provided with a second through hole for the screw to pass through independently, and the other fixing block is provided with a threaded blind hole, and the screw passes through the second through hole and the first through hole in turn and is threadedly connected in the threaded blind hole.

[0007] Furthermore, there are a plurality of insertion rods, which are arranged front to back and located on the same straight line.

[0008] Furthermore, the top of each of the fixing blocks begins to have a mounting groove.

[0009] Furthermore, the column legs are made of steel.

[0010] Furthermore, the top beam is made of steel.

[0011] Furthermore, the movable end of the insertion rod has a conical structure.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model inserts the top beam into the groove in the column leg, a first through hole is opened on the column leg, and a second through hole is opened on the top beam. After the top beam is inserted into the groove, the rear insertion rod is passed through the first through hole and the second through hole, and the insertion rod is locked in the first through hole and the second through hole by a locking assembly, so that the end of the top beam can be limited on the column leg, so that the top beam and the column leg are connected together. When connecting, the problem of low efficiency during installation caused by tightening multiple bolts when using cable connection in the prior art is avoided, thereby improving the efficiency during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 The schematic diagram of the enlarged structure after the section view at AA in the middle;

[0016] Figure 3 State diagram for use of reinforcement ribs.

[0017] The names of the components in the figure are: 1. column leg 2. limit block 3. plug rod 4. top beam 5. fixing block 6. screw 7. mounting groove 8. reinforcing rib. DETAILED DESCRIPTION

[0018] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0019] Example

[0020] A mine safety protection support device described in this embodiment is as follows Figure 1 As shown, it includes a vertically arranged column leg 1, which has two column legs 1 and is arranged left and right. A top beam 4 with an arc-shaped structure is arranged above the column leg 1. When the column leg 1 is specifically installed, it is an existing known installation method. A reserved hole is opened at the bottom of the column leg 1. A column socket is pre-dug in the mine tunnel. The bottom of the column leg 1 is then directly inserted into the pre-dug column socket. The column socket is located above the tunnel floor. The column leg 1 can contact the bottom of the column socket. Then, an iron shoe is welded to the bottom of the column leg 1. The iron shoe can increase the contact area between the column leg and the bottom of the tunnel and improve the stability of the bracket. Then, the pull rod in the column socket is used to pass through the column leg 1. A hole is reserved and fixed with a nut to achieve the purpose of fixing the column leg 1; when the top beam 4 is installed between the column leg 1, one end of the top beam 4 is installed on the top of one of the column legs 1, and the other end is installed on the top of the other column leg 1; after the installation is completed, a "U"-shaped structure is formed between the top beam 4 and the column leg 1, the top of the top beam 4 contacts the inner top of the mine tunnel, and the column leg 1 contacts the side wall of the mine tunnel. During use, the "U"-shaped structure top beam 4 and column leg 1 have a higher pressure-bearing capacity, thereby achieving the purpose of supporting and protecting the tunnel and protecting the safety of mine personnel during construction.

[0021] like Figure 1 and Figure 2 As shown, the top of each column leg 1 is provided with a groove for inserting the end of the top beam 4; Figure 1 In the middle position, the groove on the top of the left column leg 1 is used to insert the left end of the top beam 4, and the groove on the top of the right column leg 1 is used to insert the right end of the top beam 4; by inserting the top beam 4 into the groove, the top beam 4 and the column leg 1 can be initially limited;

[0022] like Figure 1 As shown, a limit block 2 is provided on one side of the column leg 1, and a plug rod 3 is horizontally fixed on the limit block 2; the left limit block 2 is preferably located on the left side of the left column leg 1, and the right limit block 2 is preferably located on the right side of the right column leg 1; the left end of the left plug rod 3 is fixed on the right side wall of the left limit block 2; the right end of the left plug rod 3 is fixed on the left side wall of the right limit block 2;

[0023] like Figure 1 and Figure 2As shown, the column legs 1 are symmetrically provided with two first through holes for inserting the rod 3, and the first through holes are communicated with the inside of the groove; the ends of the top beams 4 are provided with second through holes for inserting the rod 3; when the ends of the top beams 4 are located in the groove, the center lines of the first through holes and the second through holes are located on the same straight line; because the first through holes are symmetrically provided and communicated with the inside of the groove, according to Figure 2 It can be seen from the orientation in that one of the first through holes is located on the column leg 1 on the left side of the groove, and the other first through hole is located on the column leg 1 on the right side of the groove; because when the top beam 4 is inserted into the groove, the first through hole and the second through hole are located on the same straight line, so from Figure 2 It can be seen from the orientation in that the first through hole and the second through hole are both in a state of being connected to each other from left to right; the right end of the insertion rod 3 on the left limit block 2 is a movable end, and the movable end of the insertion rod 3 can first pass through one of the first through holes, and then can pass through the second through hole on the top beam 4, and then pass out from the second through hole, and can pass through another first through hole, so by inserting the insertion rod 3 into the first through hole and the second through hole, the top beam 4 can be limited in the groove again;

[0024] like Figure 1 and Figure 2 As shown, the movable end of the insertion rod 3 is a tapered structure, the right end of the left insertion rod 3 is the movable end, and the left end of the right insertion rod 3 is the movable end. Through the design of the tapered structure, when the insertion rod 3 is inserted into the first through hole and the second through hole, it can be inserted into the through hole more smoothly and more easily;

[0025] like Figure 1 and Figure 2 As shown, a fixing block 5 is provided on the column leg 1, and the fixing blocks 5 are two and arranged front to back; the fixing block 5 is fixed on the column leg 1 on the side away from the limit block 2, and the movable end of the insertion rod 3 passes through the first through hole and the second through hole and is located between the two fixing blocks 5; a screw 6 is horizontally arranged between the two fixing blocks 5, and a first through hole for the screw 6 to pass through independently is opened on the insertion rod 3, wherein a second through hole for the screw 6 to pass through independently is opened on one of the fixing blocks 5, and a threaded blind hole is opened on the other fixing block 5, and the screw 6 passes through the second through hole and the first through hole in sequence and is threadedly connected to the screw In the blind hole; this paragraph of the scheme as a whole constitutes a locking assembly for locking the insertion rod 3 inserted into the first through hole and the second through hole; when the fixed block 5 is fixed on the column leg 1 on the side away from the limit block 2, for example, when the limit block 2 is located on the left side of the column leg 1, the fixed block 5 is fixed on the right side of the column leg 1, if the limit block 2 is located on the right side of the column leg 1, the fixed block 5 is fixed on the left side of the column leg 1; because the limit block 2 and the fixed block 5 are symmetrically arranged, the insertion rod 3 on the limit block 2 can be inserted into the two fixed blocks 5 by passing through the through hole; according to Figure 2After the bolt 6 is screwed in place, the bolt 6 can be tightened to the desired position, so that the bolt 6 can be easily locked to the desired position.

[0026] In the specific implementation process, the screw 6 in the locking assembly can also be replaced by a bolt. Figure 2 The threaded blind hole on the middle upper fixing block 5 is also replaced by the third through hole, and the movable end of the bolt passes through the second through hole, the first through hole and the third through hole in sequence and is located above the upper fixing block 5. Then, by tightening the nut on the bolt above the fixing block 5, the insertion rod 3 can also be limited and locked to prevent it from moving out of the first through hole and the second through hole;

[0027] like Figure 1 and Figure 2 As shown, there are a plurality of plug rods 3, which are arranged front and back and located on the same straight line. The structures and installation methods of the plurality of plug rods 3 are consistent. Because the plug rods 3 in this design are located on the same straight line, the first through holes on the plurality of plug rods 3 can be aligned one by one and located on the same straight line. Therefore, the screws 6 can be inserted into the plurality of plug rods 3 at the same time, so as to achieve the purpose of limiting the plurality of plug rods 3 at the same time. There is no need to limit the position of each plug rod 3 separately, thereby improving the efficiency during installation. The design of the plurality of plug rods 3 can increase the stability of the connection between the column leg 1 and the top beam 4.

[0028] like Figure 1 and Figure 3As shown, the top of the fixing block 5 begins to have an installation groove 7; when the column legs 1 and the top beam 4 are installed in the mine tunnel, multiple groups need to be installed. In order to increase the stability between each group of column legs 1 and the top beam 4, reinforcing ribs 8 are installed between each two adjacent groups of column legs 1 and the top beam 4 to improve the stability between each two adjacent groups of column legs 1 and the top beam 4; in this design, the design of the installation groove 7 makes it convenient to install the reinforcing rib 8, one end of the reinforcing rib 8 is placed in the installation groove 7 on one group of column legs 1, and the other end of the reinforcing rib 8 is placed in the installation groove 7 on the other group of column legs 1, and then by reserving threaded holes on the reinforcing rib 8 and the installation groove 7, the reinforcing rib 8 can be fixed in the installation groove 7 by tightening screws;

[0029] The column leg 1 is made of steel, and the top beam 4 is made of steel; the above has many advantages, such as bearing large pressure, long support time, not easy to deform and good toughness; thus, the service life of the column leg 1 and the top beam 4 is increased;

[0030] During specific use: first, insert the end of the top beam 4 into the groove, then operate the limit block 2 to drive the multiple insertion rods 3 to pass through the first through hole and the second through hole, then align the first through hole and the second through hole, and finally insert the screw 6 into the first through hole and the second through hole and fix them, so that the multiple insertion rods 3 can be limited at the same time. In this use process, the connection between the column leg 1 and the top beam 4 can be limited by turning the screw 6 once to achieve the purpose of fixing. At the same time, multiple insertion rods 3 can also be limited at the same time. There is no need to fix the connection between the column leg 1 and the top beam 4 like in the prior art, which requires multiple bolts to be turned to fix it, resulting in low efficiency during installation.

Claims

1. A support device for mine safety protection, comprising two vertically arranged column legs (1), the column legs (1) being arranged in a left-right arrangement, and a top beam (4) having an arc-shaped structure being arranged above the column legs (1), characterized in that: The top of each column leg (1) is provided with a groove for inserting the end of the top beam (4); a limit block (2) is provided on one side of each column leg (1), and a plug rod (3) is horizontally fixed on the limit block (2); two first through holes for inserting the plug rod (3) are symmetrically provided on the column leg (1), and the first through holes are communicated with the inside of the groove; a second through hole for inserting the plug rod (3) is provided at the end of the top beam (4); when the end of the top beam (4) is located in the groove, the center lines of the first through hole and the second through hole are located on the same straight line; and a locking component for locking the plug rod (3) inserted into the first through hole and the second through hole is provided on the column leg (1).

2. The mine safety protection support device according to claim 1 is characterized in that: The locking assembly comprises a fixing block (5), which is two in number and arranged in a front-to-back manner; the fixing block (5) is fixed on a column leg (1) on a side away from the limiting block (2); the movable end of the insertion rod (3) passes through a first through hole and a second through hole and is located between the two fixing blocks (5); a screw (6) is horizontally arranged between the two fixing blocks (5); a first through hole for the screw (6) to pass through independently is provided on the insertion rod (3); a second through hole for the screw (6) to pass through independently is provided on one of the fixing blocks (5); a threaded blind hole is provided on the other fixing block (5); the screw (6) passes through the second through hole and the first through hole in sequence and is threadedly connected in the threaded blind hole.

3. The mine safety protection support device according to claim 2 is characterized in that: The insertion rods (3) are multiple, and the multiple insertion rods (3) are arranged front to back and located on the same straight line.

4. The mine safety protection support device according to claim 2, characterized in that: The top of each of the fixing blocks (5) begins to have a mounting groove (7).

5. The mine safety protection support device according to claim 1, characterized in that: The column legs (1) are made of steel.

6. The mine safety protection support device according to claim 1, characterized in that: The top beam (4) is made of steel.

7. The mine safety protection support device according to claim 1, characterized in that: The movable end of the insert rod (3) is in a conical structure.

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