Temporary supporting device

Abstract

The utility model relates to the technical field of coal mine tunneling supporting, in particular to a temporary supporting device which comprises a base, two ends of the upper surface of the base are respectively connected with a fixing frame, a third thread groove is arranged on the fixing frame, a lifting screw rod is arranged in the third thread groove, one end of the lifting screw rod is provided with a lifting rotating wheel, and the other end of the lifting screw rod is connected with a lifting pulley. The lifting pulley is positioned below the fixed frame; the lifting frame comprises a hydraulic cylinder, a cylinder body of the hydraulic cylinder is fixedly connected with a bottom frame, the bottom frame is installed on the fixing frame through a positioning groove formed in the fixing frame, the output end of the hydraulic cylinder is fixedly connected with a supporting block, the upper surface of the supporting block is provided with a first installation block, and the supporting block is fixedly connected with the supporting top plate; a first mounting groove is formed in the supporting top plate, the first mounting block is inserted into the first mounting groove, and a first locking mechanism is arranged in the first mounting groove. According to the temporary supporting device, the stability of the structure of the temporary supporting device can be guaranteed, and the requirement for convenience of disassembly, transportation, storage and movement can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine excavation support, in particular to a temporary support device. Background Art

[0002] In the process of mine excavation, in order to ensure the safety of the newly excavated tunnel, a support structure is needed to enhance the stability of its structure. The traditional support method is to use anchor rods and mesh structures for support work. This support method has the disadvantages of cumbersome operation procedures and the need to use a large number of tools, which not only wastes manpower, but also wastes time, affecting the progress of coal mining.

[0003] The utility model patent with publication number CN211692521U provides a temporary support device for coal mine excavation, including a base rod, two ends of the base rod are respectively fixedly connected to two support rods arranged vertically therewith, and the upper side of the base rod is fixedly connected to two vertically arranged telescopic rod devices, the two telescopic rod devices are respectively symmetrically arranged on both sides of the center line of the base rod, and the ends of the two telescopic rod devices away from the base rod are fixedly connected to a transversely arranged top plate; the telescopic rod device includes a column vertically fixed on the base rod, the column is a hollow structure, and a transversely arranged rotating rod is inserted and rotatably connected on one side of the column, one end of the rotating rod extends into the column and is fixedly connected to a first bevel gear, the inner wall of the lower end of the column is rotatably connected to a vertically arranged rotating shaft through a rotating member, and a second bevel gear meshing with the first bevel gear is sleeved and fixedly connected on the rotating shaft, one end of the rotating shaft away from the rotating member is fixedly connected to a threaded rod, and one end of the threaded rod away from the rotating shaft is threadedly connected to a nut column, an end of the column away from the base rod is provided with an opening, and the nut column passes through the opening and is fixedly connected to the top plate. The rotation of the rotating rod of this technical solution will drive the rotation of the first bevel gear, and then drive the rotation of the rotating shaft to realize the rotation of the threaded rod. Since the axial rotation of the nut column is restricted by the top plate, the nut column is forced to move upward, driving the top plate to move upward and press against the top of the tunnel, playing a supporting role for the mine tunnel. Although this temporary support device can perform normal support work, it cannot be easily disassembled, and the overall structure is also inconvenient during storage and transportation. When the position needs to be adjusted, it can only be carried manually, which is time-consuming and labor-intensive, and lacks convenience in use. Utility Model Content

[0004] In view of the technical problem that the storage, transportation and movement of existing temporary supports for coal mine tunnels are not convenient, the utility model provides a temporary support, which can ensure the stability of the temporary support structure and meet the convenience requirements of disassembly, transportation and storage through the coordination of structures such as a base, a lifting frame, a supporting top plate, a positioning block groove, a mounting block, a mounting groove, a locking mechanism, etc. At the same time, the temporary support is also provided with a lifting pulley. When the equipment needs to be moved, the lifting pulley is lowered by rotating the lifting wheel, so that it can be moved conveniently and quickly.

[0005] The technical solution of this utility model is as follows:

[0006] A temporary support device comprises a base, and two ends of the upper surface of the base along the length direction are respectively fixedly connected with fixing frames, each fixing frame is provided with a thread groove three, a lifting screw is installed in the thread groove three, a lifting wheel is provided at one end of the lifting screw, and a lifting pulley is connected to the other end of the lifting screw, and the lifting pulley is located below the fixing frame;

[0007] It also includes a lifting frame, which includes a hydraulic cylinder, a cylinder body of the hydraulic cylinder is fixedly connected to a base frame, the base frame is installed on the fixed frame through a positioning groove arranged on the fixed frame, an output end of the hydraulic cylinder is fixedly connected to a support block, an upper surface of the support block is provided with a mounting block 1, the support block is fixedly connected to the supporting top plate, a mounting groove 1 is arranged on the supporting top plate, the mounting block 1 is plugged into the inside of the mounting groove 1, and a locking mechanism 1 is arranged inside the mounting groove 1;

[0008] A locking mechanism includes a pin groove provided on a mounting block and a fixing groove provided on an inner wall of the mounting groove, a pin block is nested and slidably connected in the fixing groove, the pin block and the pin groove are correspondingly nested and matched, a thread groove is provided on the pin block, and the pin block is threadedly connected to a screw rod through the thread groove, a vertical inner groove is provided on the support top plate, the free end of the screw rod extends into the inner groove and is connected to a locking wheel provided on the outer surface of the support top plate through a meshing bevel gear set, preferably, a locking handle is provided on the locking wheel.

[0009] Furthermore, a plurality of protruding teeth are provided on the lower surface of the base. When the base contacts the ground, the protruding teeth penetrate into the surface of the tunnel, thereby increasing the stability of the base, making it less likely to slide or deviate, and helping to enhance the firmness of the entire support structure.

[0010] Furthermore, a lifting handle is provided on the lifting wheel.

[0011] Furthermore, the lifting pulley includes a lifting plate, a universal wheel is installed on the lower surface of the lifting plate, a bearing seat is installed on the upper surface of the lifting plate, and the lifting screw is installed on the bearing seat.

[0012] Furthermore, a slider is provided on the lifting plate, and a slide groove is provided at corresponding positions of the fixed frame and the base. The slider and the slide groove are slidably connected. This structure can play an auxiliary guiding role in the lifting and lowering of the lifting plate, so that it can be lifted and lowered smoothly.

[0013] Furthermore, a second mounting block is provided at the bottom of the base frame, and the second mounting block is plugged into a second mounting groove provided at a corresponding position of the base.

[0014] Furthermore, a locking mechanism is provided inside the second installation groove, and the locking mechanism includes a pin groove arranged on the second installation block and a fixed groove arranged on the inner wall of the second installation groove. A pin block is nested and slidably connected in the second fixing groove. The pin block and the second pin groove are correspondingly nested and matched. A threaded groove is provided on the second pin block, and is threadedly connected to the second screw rod through the threaded groove. A vertical inner groove is provided on the base. The free end of the second screw rod extends into the inner groove and is connected to the locking wheel arranged on the outer surface of the base plate through a meshing bevel gear set. Preferably, a locking handle is provided on the second locking wheel.

[0015] Furthermore, the screw rods of the two sets of locking mechanisms are integrated structures;

[0016] The screw rods 2 of the two sets of locking mechanisms 2 are integrated structures;

[0017] By setting the thread directions of both ends of the screw rod 1 and the screw rod 2, when the locking wheel is rotated, the pin blocks in the locking mechanisms on both sides can be driven into the pin grooves through the screw.

[0018] Furthermore, reinforcing plates are provided on both sides of the support block, and the reinforcing plates can increase the contact area between the support block and the supporting top plate, thereby enhancing the supporting stability of the temporary support.

[0019] Furthermore, an oil pump station is arranged on the outer side of the lifting frame, and the oil pump station is connected with the hydraulic cylinder through an oil pipe.

[0020] The beneficial effects of the utility model are:

[0021] The temporary support provided by the utility model can realize the stable combined installation of the lifting frame, the base and the supporting top plate through the coordinated arrangement of the structures such as the base, the lifting frame, the supporting top plate, the positioning block groove, the mounting block one, the mounting groove one, the locking mechanism one and the like, so as to form a stable supporting structure. At the same time, the supporting structure can also be quickly and conveniently disassembled, which is convenient for transportation and storage. It is flexible and convenient to use, simple to operate, time-saving and labor-saving, and greatly improves the convenience of using the temporary support. The lifting screw, the thread groove three, the lifting pulley and the like are arranged, and the lifting screw can be rotated to make the lifting pulley contact with the ground and support the entire structure, so as to realize the convenient movement of the supporting structure and facilitate the advancement of the excavation work. When not in use, the lifting pulley can be stably stored, so that the base is in contact with the ground, and stable support work can be carried out. The entire structure is flexible and convenient to use, simple and convenient to operate, time-saving and labor-saving, and effectively ensures the convenience of moving the entire supporting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of a temporary support device according to Example 1 of the utility model.

[0024] Figure 2 It is a front view of the temporary support device of Example 1 of the utility model.

[0025] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0026] Figure 4 for Figure 2 A partial enlarged view of point B in the middle.

[0027] In the figure, 1-base, 2-fixed frame, 3-lifting plate, 4-universal wheel, 5-thread groove three, 6-lifting screw, 7-lifting wheel, 8-lifting handle, 9-slider, 10-slide, 11-convex tooth, 12-lifting frame, 13-base, 14-positioning groove, 15-hydraulic cylinder, 16-support block, 17-support top plate, 18-reinforcement plate, 19-mounting block two, 20-mounting groove two, 21-pin groove two, 22-fixed groove two, 23-pin block two, 24-screw two, 25-thread groove two, 26-inner groove two, 27-bevel gear two A, 28-bevel gear two B, 29-locking wheel two, 30-locking handle two, 31-oil pump station. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] Example 1

[0030] A temporary support device comprises a base 1, a plurality of convex teeth 11 are arranged on the lower surface of the base 1, a fixing frame 2 is fixedly connected to the two ends of the upper surface of the base 1 along the length direction, each fixing frame 2 is provided with a thread groove 3 5, a lifting screw 6 is installed in the thread groove 3 5, a lifting rotating wheel 7 is arranged at one end of the lifting screw 6, a lifting handle 8 is arranged at the top of the lifting rotating wheel 7 near the edge, a lifting pulley is connected to the other end of the lifting screw 6, the lifting pulley is located below the fixing frame 2, the lifting pulley comprises a lifting plate 3, the lifting screw 6 is installed on the lifting plate 3 through a bearing seat, a slider 9 is also arranged on the lifting plate 3, a slide groove 10 is arranged at the corresponding positions of the fixing frame 2 and the base 1, the slider 9 is slidably connected with the slide groove 10, a universal wheel 4 is installed on the lower surface of the lifting plate 3, and the number of the universal wheels 4 is two and they are located on both sides of the lifting plate 3;

[0031] It also includes a lifting frame 12, which includes a hydraulic cylinder 15. The hydraulic cylinder 15 can adjust the lifting of the supporting top plate 17 to adapt to the tunnel support work at different heights. The cylinder body of the hydraulic cylinder 15 is fixedly connected to the base frame 13, and the base frame 13 is installed on the fixed frame 2 through a positioning groove 14 provided on the fixed frame 2. The matching arrangement of the base frame 13 and the positioning groove 14 can enable the lifting frame 12 to be stably positioned and placed, so that the lifting frame 12 is not prone to skew. The output end of the hydraulic cylinder 15 is fixedly connected to a support block 16, and a mounting block 1 is provided on the upper surface of the support block 16. The support block 16 is fixedly connected to the supporting top plate 17, and reinforcing plates 18 are fixedly connected on both sides of the support block 16. A mounting groove 1 is provided on the supporting top plate 17, and the mounting block 1 is plugged into the inside of the mounting groove 1. A locking mechanism 1 is provided inside the mounting groove 1.

[0032] The locking mechanism 1 includes a pin groove 1 arranged on the mounting block 1 and a fixing groove 1 arranged on the inner wall of the mounting groove 1, a pin block 1 is nested and slidably connected in the fixing groove 1, the pin block 1 and the pin groove 1 are correspondingly nested and matched, a thread groove 1 is arranged on the pin block 1, and is threadedly connected with a screw rod 1 through the thread groove 1, a vertical inner groove 1 is opened on the support top plate 17, a bevel gear 1A and a bevel gear 1B that are meshed and connected with each other are installed in the inner groove 1, the free end of the screw rod 1 extends into the inner groove 1 and is nested and fixedly connected with the bevel gear 1A, the central axis of the bevel gear 1B is connected with a locking wheel 1 arranged on the outer surface of the bottom plate, and a locking handle 1 is arranged on the outer surface of the locking wheel 1 near the edge;

[0033] A second mounting block 19 is provided at the bottom of the base frame 13. The second mounting block 19 is inserted into a second mounting groove 20 provided at a corresponding position of the base 1. A second locking mechanism is provided inside the second mounting groove 20. The second locking mechanism includes a second pin groove 21 provided on the second mounting block 19 and a second fixing groove 22 provided on the inner wall of the second mounting groove 20. A second pin block 23 is nested and slidably connected in the second fixing groove 22. The second pin block 23 and the second pin groove 21 are correspondingly nested and matched. A second threaded groove 25 is provided on the second pin block 23. The screw rod 24 is threadedly connected with the screw rod 24 through the screw groove 25. The base 1 is provided with a vertical inner groove 26. The inner groove 26 is provided with a bevel gear 2A27 and a bevel gear 2B28 meshing with each other. The free end of the screw rod 24 extends into the inner groove 26 and is nested and fixedly connected with the bevel gear 2A27. The central axis of the bevel gear 2B28 is connected with a locking wheel 29 arranged on the outer surface of the bottom plate. A locking handle 230 is arranged on the outer surface of the locking wheel 29 near the edge.

[0034] An oil pump station 31 is disposed outside the lifting frame 12 , and the oil pump station 31 is connected to the hydraulic cylinder 15 through an oil pipe.

[0035] The working principle of the temporary support device of this embodiment 1 is as follows:

[0036] When using the temporary support, insert the base frame 13 into the positioning groove 14, and insert the mounting block 19 at the bottom of the base frame 13 into the mounting groove 20 on the base 1, and fix it through the locking mechanism 2, and connect the mounting groove at the bottom of the supporting top plate 17 to the mounting block 1 at the top of the supporting block 16, and fix it through the locking mechanism 1, then the supporting top plate 17 can be docked and installed on the lifting frame 12, and the assembly work of the entire supporting structure can be completed, and the hydraulic cylinder 15 is started, and the hydraulic cylinder 15 drives the supporting block 16 to drive the supporting top plate 17 to lift. When the lifting plate 3 is lifted and in contact with the top of the tunnel, stable support work can be carried out. When the entire structure needs to be moved, the lifting handle 8 is grasped to rotate the lifting wheel 7, thereby driving the lifting screw 6 to rotate. The lifting screw 6 pushes the lifting plate 3 down through the cooperation with the thread groove 3 5. The lifting plate 3 drives the universal wheel 4 to descend and contact with the ground, and support the entire structure. The universal wheel 4 is convenient for miners to adjust the position or carry out transportation work. After moving to the specified position, the universal wheel 4 is retracted to make the base 1 contact with the ground, which can stably position and support.

[0037] Example 2

[0038] On the basis of Example 1, the number of locking mechanisms 1 should be two groups, and the screws 1 of the two groups of locking mechanisms 1 adopt an integrated structure. The screws 1 of the integrated structure form means that the screws 1 are bidirectional screws, that is, the thread directions of the two ends are set in opposite directions, so that when rotating, the corresponding threads of the thread grooves 1 in the two groups of locking mechanisms 1 can be matched to drive the two pin blocks 1 to be inserted into the corresponding pin grooves 1 respectively, so as to realize the positioning and installation of the installation block 1. During operation, grasp the locking handle 1 to drive the locking wheel 1 to rotate, the locking wheel 1 drives the bevel gear 1B to rotate, the bevel gear 1B drives the bevel gear 1A to rotate, and the bevel gear 1A drives the screw 1 to rotate. The screw 1 can drive the pin block 1 to move through the thread matching with the thread groove 1. When the pin block 1 is inserted into the pin groove 1, the installation block 1 can be locked in the installation groove 1, thereby completing the installation operation of the locking mechanism; the locking wheel 1 is rotated in the opposite direction to open the locking mechanism 1, thereby enabling the convenient disassembly operation of the structure.

[0039] The number of the locking mechanisms 2 should also be two groups. Based on the same principle, the screw rods 24 of the two groups of locking mechanisms 2 also adopt an integrated structure.

[0040] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field may easily think of changes or substitutions within the technical scope disclosed in the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A temporary support device, comprising a base (1), It is characterized in that The upper surface of the base (1) is fixedly connected to a fixing frame (2) at both ends along the length direction, each fixing frame (2) is provided with a thread groove three (5), a lifting screw rod (6) is installed in the thread groove three (5), a lifting rotating wheel (7) is provided at one end of the lifting screw rod (6), and a lifting pulley is connected to the other end of the lifting screw rod (6), and the lifting pulley is located below the fixing frame (2); The lifting frame (12) further comprises a lifting frame (12), the lifting frame (12) comprising a hydraulic cylinder (15), the cylinder body of the hydraulic cylinder (15) being fixedly connected to a base frame (13), the base frame (13) being mounted on the fixed frame (2) via a positioning groove (14) arranged on the fixed frame (2), the output end of the hydraulic cylinder (15) being fixedly connected to a support block (16), a mounting block 1 being arranged on the upper surface of the support block (16), the support block (16) being fixedly connected to a supporting top plate (17), a mounting groove 1 being arranged on the supporting top plate (17), the mounting block 1 being inserted into the inside of the mounting groove 1, and a locking mechanism 1 being arranged inside the mounting groove 1; The locking mechanism comprises a pin groove 1 arranged on the mounting block 1 and a fixing groove 1 arranged on the inner wall of the mounting groove 1, wherein a pin block 1 is nested and slidably connected in the fixing groove 1, and the pin block 1 and the pin groove 1 are correspondingly nested and matched, a thread groove 1 is arranged on the pin block 1, and is threadedly connected to a screw rod 1 through the thread groove 1, and a vertical inner groove 1 is opened on the support top plate (17), and the free end of the screw rod 1 extends into the inner groove 1 and is connected to a locking wheel 1 arranged on the outer surface of the support top plate (17) through a meshing bevel gear set.

2. The temporary support device according to claim 1, It is characterized in that A plurality of protruding teeth (11) are provided on the lower surface of the base (1).

3. The temporary support device according to claim 1, It is characterized in that A lifting handle (8) is provided on the lifting rotating wheel (7).

4. The temporary support device according to claim 1, It is characterized in that The lifting pulley comprises a lifting plate (3), a universal wheel (4) is mounted on the lower surface of the lifting plate (3), a bearing seat is mounted on the upper surface of the lifting plate (3), and one end of the lifting screw (6) is mounted on the bearing seat.

5. The temporary support device according to claim 4, It is characterized in that A sliding block (9) is provided on the lifting plate (3), and a sliding groove (10) is provided at corresponding positions of the fixing frame (2) and the base (1), and the sliding block (9) and the sliding groove (10) are slidably connected.

6. The temporary support device according to claim 1, It is characterized in that A second mounting block (19) is provided at the bottom of the base frame (13), and the second mounting block (19) is plugged into a second mounting groove (20) provided at a corresponding position of the base (1).

7. The temporary support device according to claim 6, It is characterized in that A locking mechanism is provided inside the second installation groove (20), and the locking mechanism comprises a pin groove (2) provided on the second installation block (19) and a fixed groove (22) provided on the inner wall of the second installation groove (20). A pin block (23) is nested and slidably connected inside the second fixed groove (22). The pin block (23) and the second pin groove (21) are correspondingly nested and matched. A thread groove (25) is provided on the second pin block (23), and the thread groove (25) is threadedly connected to the second screw rod (24). A vertical inner groove (26) is provided on the base (1). The free end of the second screw rod (24) extends into the inner groove (26) and is connected to a locking wheel (29) provided on the outer surface of the bottom plate through a meshing bevel gear set.

8. The temporary support device according to claim 7, It is characterized in that The number of the locking mechanisms 1 is two sets, and the screw rods 1 of the two sets of locking mechanisms are an integrated structure; The number of the locking mechanisms 2 is two sets, and the screw rods 2 (24) of the two sets of locking mechanisms 2 are an integrated structure.

9. The temporary support device according to claim 1, It is characterized in that Reinforcement plates (18) are provided on both sides of the support block (16).

10. The temporary support device according to claim 1, It is characterized in that An oil pump station (31) is arranged outside the lifting frame (12), and the oil pump station (31) is connected to the hydraulic cylinder (15) through an oil pipe.

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