Fixing structure of tunnel blasting protection support

Abstract

The utility model discloses a fixing structure of a tunnel blasting protection support, which comprises a supporting plate, a backing plate, a lining frame and a supporting assembly, two groups of moving assemblies are arranged on the backing plate, the backing plate is fixedly connected to the lower side of the supporting plate, an embedded block is arranged at one end of the backing plate, an embedded groove matched with the embedded block is arranged at the other end of the backing plate, and the lining frame is rotatably connected with the supporting plate. Vertical grooves are formed in the two sides of the lining frame correspondingly and used for being inserted into the protective support, and the supporting assembly is used for supporting the lining frame to be kept vertical. The fixing structure can move through the two moving assemblies, the position of the fixing structure can be rapidly adjusted according to needs, an electric cylinder body can be controlled to drive a movable frame to vertically move, moving wheels can make contact with or break away from the ground, a base plate is jacked upwards when the moving wheels make contact with the ground, and when the moving wheels break away from the ground, the base plate makes contact with the ground; when the fixing structure is not used, the lining frame can be rotated to the horizontal state, the occupied space is effectively reduced, in the using state, the lining frame is supported by the supporting assembly to be kept vertical, and assembling is rapid and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a fixing structure of a tunnel blasting protection bracket. Background Technique

[0002] Blasting engineering is a technology that uses the huge energy released instantaneously by the explosion of explosives to damage or deform the medium around the explosives, so as to achieve certain engineering purposes. A tunnel is a building constructed underground, underwater or in a mountain body, and is used to lay railways or build roads for motor vehicles to pass through. During the tunnel excavation construction process, when blasting excavation construction is carried out, it is necessary to use a tunnel blasting drilling device to drill a plurality of blast holes arranged circumferentially on the blasting surface first, then configure explosive packages according to the pre-designed blasting parameters and put them into each blast hole, and then detonate them to complete the blasting construction.

[0003] A large amount of crushed stones will be ejected in different directions during blasting. To ensure the safety of construction, it is necessary to set up a protective frame. The traditional protective frame occupies a large space, is relatively complex during assembly and fixation, and is difficult to quickly transfer according to the blasting position. Therefore, the utility model proposes a fixing structure of a tunnel blasting protection bracket that can solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixing structure of a tunnel blasting protection bracket to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixing structure of a tunnel blasting protection bracket, including:

[0006] A tray, on which two groups of moving components are arranged;

[0007] A backing plate, fixedly connected to the lower side of the tray, one end of the backing plate is provided with an insert block, and the other end is provided with an insert groove adapted to the insert block;

[0008] A lining frame, rotatably connected to the tray, vertical grooves are respectively arranged on both sides of the lining frame, and the vertical grooves are used for inserting into the protection bracket;

[0009] A support component, used to support the lining frame to keep it vertical.

[0010] As a preferred technical solution, the moving component includes a movable frame located under the tray, a guide rod passing through the tray is arranged on the movable frame, and a moving wheel is arranged on the movable frame.

[0011] As a preferred technical solution, the moving component further includes an electric cylinder body installed on the tray, and the movable rod of the electric cylinder body extends vertically and is connected to the movable frame.

[0012] As a preferred technical solution, the support assembly includes a resisting rod hinged to the lining frame and a second sleeve body arranged on the pallet. A first sleeve body is arranged on the resisting rod, a supporting rod is screwed to the second sleeve body, and the supporting rod can extend into the first sleeve body.

[0013] As a preferred technical solution, a plurality of guide holes for passing bolts are formed in the backing plate.

[0014] As a preferred technical solution, a push plate is slidably connected in the vertical groove, a sliding groove communicated with the vertical groove is arranged on the lining frame, and a push handle passing through the sliding groove is arranged on the pallet.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] By arranging two sets of moving components, the fixing structure can be moved, and the position can be quickly adjusted as needed. By controlling the electric cylinder body, the movable frame can be driven to move vertically, so that the moving wheels can contact or disengage from the ground. When the moving wheels contact the ground, the backing plate is jacked up, and when the moving wheels disengage from the ground, the backing plate contacts the ground.

[0017] When the fixing structure is not in use, the lining frame can be rotated to a horizontal state to effectively reduce the occupied space. In the use state, the lining frame is supported by the support assembly to keep it vertical, and the assembly is fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first-angle view of the overall structure of the utility model;

[0019] Figure 2 It is a second-angle view of the overall structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the moving component of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the vertical groove of the utility model;

[0022] In the figure: 10, pallet; 20, backing plate; 21, insert block; 22, insert groove; 30, lining frame; 31, vertical groove; 32, sliding groove; 33, push plate; 331, push handle; 40, support assembly; 41, resisting rod; 42, second sleeve body; 43, first sleeve body; 44, supporting rod; 50, moving component; 51, movable frame; 52, guide rod; 53, moving wheel; 54, electric cylinder body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , a fixing structure for a tunnel blasting protection bracket is provided to solve the problem that a large amount of crushed stones will be ejected in different directions during tunnel construction blasting. The protection bracket set to ensure the safety of construction occupies a large space, is relatively complex during assembly and fixing, and is difficult to quickly transfer according to the blasting position. The specific embodiments are as follows: Embodiment

[0025] Two sets of moving components 50 are arranged on the pallet 10. By arranging the two sets of moving components 50, the fixing structure can be moved, and the position can be quickly adjusted as needed.

[0026] The backing plate 20 is fixedly connected to the lower side of the pallet 10. One end of the backing plate 20 is provided with an insert block 21, and the other end is provided with an insert groove 22 adapted to the insert block 21. The backing plate 20 can contact the ground during tunnel construction to play a role in overall lifting, and through the arranged insert block 21 and insert groove 22 that are adapted to each other, multiple fixing structures can be spliced together to form a connection.

[0027] The lining frame 30 is rotatably connected to the pallet 10, and the supporting component 40 is used to support the lining frame 30 to keep it vertical. That is, when the fixing structure is not in use, the lining frame 30 can be rotated to a horizontal state to effectively reduce the occupied space. In the use state, the lining frame 30 is supported by the supporting component 40 to keep it vertical.

[0028] Vertical grooves 31 are respectively arranged on both sides of the lining frame 30 for inserting the protection bracket. After the lining frame 30 is supported and kept vertical, the protection bracket is inserted to form a protection to block the ejection of crushed stones, and the safety is good. Among them, one protection bracket is inserted into the adjacent vertical grooves 31 of two fixing structures to form a continuous protection. Embodiment

[0029] The moving component 50 includes a movable frame 51 located under the pallet 10 and an electric cylinder body 54 installed on the pallet 10. A guide rod 52 passing through the pallet 10 is arranged on the movable frame 51, and a moving wheel 53 is arranged on the movable frame 51. The movable rod of the electric cylinder body 54 extends vertically and is connected to the movable frame 51; by controlling the electric cylinder body 54, the movable frame 51 can be driven to move vertically, so that the moving wheel 53 can contact or disengage from the ground. When the moving wheel 53 contacts the ground, the backing plate 20 is jacked up, and when the moving wheel 53 disengages from the ground, the backing plate 20 contacts the ground.

[0030] A plurality of guide holes for passing bolts are formed in the backing plate 20, and the guide holes are not shown in the figure, so that the fixing structure can be connected to the screw holes pre-opened on the ground by means of bolts, further improving the stability.

[0031] A push plate 33 is slidably connected in the vertical groove 31, and a sliding groove 32 communicating with the vertical groove 31 is provided on the lining frame 30. A push handle 331 passing out along the sliding groove 32 is provided on the support plate 10. When the protective bracket is removed from the vertical groove 31, the push plate 33 can be pushed by the push handle 331 to push the protective bracket out of the vertical groove 31 upward, which is convenient for operation. Embodiment

[0032] The support assembly 40 includes a resisting rod 41 hinged to the lining frame 30 and a second sleeve body 42 provided on the support plate 10. A first sleeve body 43 is provided on the resisting rod 41. A supporting rod 44 is screwed to the second sleeve body 42, and the supporting rod 44 can extend into the first sleeve body 43. When the supporting lining frame 30 is kept vertical, first rotate the lining frame 30 to the vertical state, then pivot the resisting rod 41 to align the first sleeve body 43 and the second sleeve body 42, and finally rotate the supporting rod 44 to extend into the first sleeve body 43 to support the lining frame 30, and the assembly is fast and convenient.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing structure of a tunnel blasting protection support, characterized in that: include: A support plate (10) on which two groups of moving components (50) are arranged; A backing plate (20) is fixedly connected to the lower side of the support plate (10), one end of the backing plate (20) is provided with an insert block (21), and the other end of the backing plate (20) is provided with an insert groove (22) adapted to the insert block (21); A liner frame (30) is rotatably connected to the support plate (10), and vertical grooves (31) are respectively provided on both sides of the liner frame (30), and the vertical grooves (31) are used to be inserted into the protective bracket; The support assembly (40) is used to support the liner frame (30) to remain vertical.

2. The fixing structure of a tunnel blasting protection support according to claim 1 is characterized in that: The moving assembly (50) comprises a movable frame (51) located at the lower side of the support plate (10), the movable frame (51) being provided with a guide rod (52) penetrating the support plate (10), and the movable frame (51) being provided with moving wheels (53).

3. The fixing structure of a tunnel blasting protection support according to claim 2 is characterized in that: The moving assembly (50) further comprises an electric cylinder body (54) mounted on the support plate (10), wherein a movable rod of the electric cylinder body (54) extends vertically and is connected to the movable frame (51).

4. The fixing structure of a tunnel blasting protection support according to claim 1, characterized in that: The support assembly (40) comprises a support rod (41) hinged on the liner (30) and a second sleeve (42) arranged on the support plate (10), the support rod (41) being provided with a first sleeve (43), the second sleeve (42) being screwed with a support rod (44), and the support rod (44) being extendable into the first sleeve (43).

5. The fixing structure of a tunnel blasting protection support according to claim 1, characterized in that: The backing plate (20) is provided with a plurality of guide holes for passing bolts.

6. The fixing structure of a tunnel blasting protection support according to claim 1, characterized in that: A push plate (33) is slidably connected in the vertical groove (31), and a slide groove (32) communicating with the vertical groove (31) is provided on the lining frame (30), and a push handle (331) extending along the slide groove (32) is provided on the support plate (10).

Images