Supporting device for tunnel construction

Abstract

The utility model discloses a supporting device for tunnel construction, which belongs to the technical field of tunnel construction and comprises two bases, supporting columns are fixedly connected to the top surfaces of the two bases respectively, upper sliding grooves are formed in the top surfaces of the supporting columns, and lower transmission grooves are formed in the bottom surfaces of the supporting columns respectively. The bottom of an inner cavity of the upper sliding groove is fixedly sleeved with a bearing, the inner side of the bearing is fixedly sleeved with a lead screw, and the top end of the lead screw extends to the inner cavity of the upper sliding groove and is in threaded connection with a supporting square rod in a sleeved mode. According to the tunnel lifting device, the crank is rotated to drive the rotating rod and the first bevel gear to rotate, the screw rod is driven to rotate through threaded fit between the first bevel gear and the second bevel gear, the top plate is driven to move upwards to abut against the top of a tunnel through threaded fit between the screw rod and the supporting square rod, and electric energy is not needed in the operation process; an external power supply is not needed when multi-group installation is needed, so that the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and more specifically to a supporting device for tunnel construction. Background Art

[0002] A tunnel is an engineering building buried in the ground. The structure of a tunnel consists of two parts: the main building and ancillary equipment. The main building consists of a tunnel body and a tunnel portal. The ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications, and drainage facilities. Long tunnels also have special ventilation and lighting equipment. During tunnel construction, support devices are needed to support the top and sides of the tunnel to ensure the safety inside the tunnel.

[0003] After searching, the utility model patent with announcement number CN217176660U discloses a support device for tunnel construction, including a base, a mounting column and a top plate, the mounting column is provided with a support assembly, the support assembly includes an output assembly fixedly installed in the inner cavity of the base, the inner cavity of the mounting column is movably connected with a threaded rod meshing with the output assembly, the outer thread of the threaded rod is connected with two threaded blocks, the outer side of the threaded block is hinged with a No. 1 movable rod penetrating the mounting column, the two No. 1 movable rods are hinged with the fixed plate, the outer side of the top plate is provided with a pushing assembly, and the pushing assembly is movably connected with the support plate; the support device for tunnel construction, by providing the support assembly, enables the constructor to fix the walls on both sides by driving the fixed plate driven by the motor when supporting the tunnel, and with the assistance of the pushing assembly, the support on the top can be carried out through the support plate, so that the effect of rapid installation is achieved and safety accidents caused by manual disassembly are avoided.

[0004] However, the above patents still have the following shortcomings: both the motor and the electric push rod need electric energy to drive. When there are many supporting devices in the tunnel, it is necessary to provide electric energy to multiple supporting devices separately, and the installation of lines and other operations will affect the convenience of using the supporting device. In addition, the electric push rod is located in the middle of the supporting device. After the supporting device is set up, it is not convenient for the workers to move in the tunnel. For this reason, we propose a supporting device for tunnel construction. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a supporting device for tunnel construction.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A support device for tunnel construction, comprising two bases, the top surfaces of the two bases are respectively fixedly connected with support columns, the top surfaces of the support columns are each provided with an upper slide groove, the bottom surfaces of the support columns are respectively provided with a lower transmission groove, the bottom of the inner cavity of the upper slide groove is fixedly sleeved with a bearing, the inner side of the bearing is fixedly sleeved with a screw rod, the top end of the screw rod extends to the inner cavity of the upper slide groove and is threadedly sleeved with a support square rod, the top ends of the two support square rods are respectively fixedly connected with a socket, the outer sides of the two sockets are sleeved with an insertion frame, and the two The top surface of the insertion frame is fixedly connected with a top plate, and the outer side of the insertion frame is respectively provided with a fixing mechanism, and a plug hole is opened on the outer side of the socket, and the inner cavity of the lower transmission groove is rotatably connected with a rotating rod, and the outer side of the rotating rod is fixedly sleeved with a first bevel gear, and the bottom end of the screw rod extends to the inner cavity of the lower transmission groove and is fixedly sleeved with a second bevel gear, the second bevel gear and the first bevel gear are meshed with each other, and the two ends of the rotating rod extend to the outer side of the support column and are fixedly connected with a crank, and side support mechanisms are respectively provided on both sides of the support column.

[0008] As a preferred solution of the utility model, the side support mechanism includes a support plate fixedly connected to the side of the support column, a screw is threadedly sleeved on the support plate, one end of the screw is rotatably connected to a push plate, the other end of the screw is fixedly connected to a knob, two limit rods are fixedly connected to the push plate, and the limit rods and the support plate are movably sleeved.

[0009] As a preferred solution of the utility model, the fixing mechanism includes a spring fixedly connected to the outside of the insertion frame, the end of the spring is fixedly connected to a pull block, the end face of the pull block is fixedly connected to a pin, the end of the pin is movably sleeved into the inner cavity of the socket, and the inner diameter of the socket is equal to the outer diameter of the pin.

[0010] As a preferred solution of the utility model, a plurality of screws are sleeved on the base.

[0011] As a preferred solution of the utility model, the inner wall of the insertion frame and the outer side surface of the socket are in contact with each other.

[0012] As a preferred solution of the utility model, the inner wall of the upper slide groove is in contact with the side surface of the supporting square rod.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, the crank handle is turned to drive the rotating rod and the first bevel gear to rotate, the threaded fit between the first bevel gear and the second bevel gear is used to drive the screw rod to rotate, and the threaded fit between the screw rod and the supporting square rod is used to drive the top plate to move up and abut against the top of the tunnel. No electric energy is required during the operation, and no external power supply is required when multiple groups need to be installed.

[0015] (2) In the utility model, the push plate is driven to move by the threaded cooperation of the screw rod and the support plate, so that the end face of the push plate abuts against the side of the tunnel, so as to support the side of the tunnel. Moreover, this operation does not require the participation of electric energy, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the interior of the upper slideway of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the support column of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the top plate of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the support column of the utility model.

[0021] Explanation of the numbers in the figure: 1. Base; 2. Support column; 3. Upper slide groove; 4. Lower transmission groove; 5. Bearing; 6. Screw rod; 7. Support square rod; 8. Socket; 9. Insert frame; 10. Top plate; 11. Socket; 12. Side support mechanism; 13. Turn bar; 14. First bevel gear; 15. Second bevel gear; 16. Crank; 17. Support plate; 18. Screw rod; 19. Push plate; 20. Knob; 21. Limit rod; 22. Spring; 23. Pull block; 24. Latch; 25. Screw; 26. Fixing mechanism. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-5 A support device for tunnel construction comprises two bases 1, the top surfaces of the two bases 1 are respectively fixedly connected with support columns 2, the top surfaces of the support columns 2 are respectively provided with upper slide grooves 3, the bottom surfaces of the support columns 2 are respectively provided with lower transmission grooves 4, the bottom of the inner cavity of the upper slide groove 3 is fixedly sleeved with a bearing 5, the inner side of the bearing 5 is fixedly sleeved with a screw rod 6, the top ends of the screw rod 6 respectively extend to the inner cavity of the upper slide groove 3 and are threadedly sleeved with support square rods 7, the top ends of the two support square rods 7 are respectively fixedly connected with sockets 8, the outer sides of the two sockets 8 are sleeved with plug-in frames 9, and the top surfaces of the two plug-in frames 9 are fixedly sleeved with a support square rod 7, and the top ends of the two support square rods 7 are respectively fixedly connected with sockets 8. The outer sides of the two sockets 8 are sleeved with plug-in frames 9, and the top surfaces of the two plug-in frames 9 are fixedly sleeved with a support square rod 7. A top plate 10 is fixedly connected, a fixing mechanism 26 is respectively provided on the outer side of the insertion frame 9, a plug hole 11 is opened on the outer side of the socket 8, a rotating rod 13 is rotatably connected to the inner cavity of the lower transmission groove 4, a first bevel gear 14 is fixedly sleeved on the outer side of the rotating rod 13, the bottom end of the screw rod 6 extends to the inner cavity of the lower transmission groove 4 and is fixedly sleeved with a second bevel gear 15, the second bevel gear 15 and the first bevel gear 14 are meshed with each other, the two ends of the rotating rod 13 extend to the outer side of the support column 2 and are fixedly connected with a crank 16, and side support mechanisms 12 are respectively provided on both sides of the support column 2.

[0027] For details, please refer to Figures 1 to 5 The side support mechanism 12 includes a support plate 17 fixedly connected to the side of the support column 2, a screw 18 is threadedly sleeved on the support plate 17, one end of the screw 18 is rotatably connected to a push plate 19, the other end of the screw 18 is fixedly connected to a knob 20, and two limit rods 21 are fixedly connected to the push plate 19, and the limit rods 21 and the support plate 17 are movably sleeved.

[0028] In this embodiment, the push plate 19 is limited by sliding between the limiting rod 21 and the support plate 17 , ensuring that the push plate 19 can only move along the axial direction of the screw rod 18 .

[0029] For details, please refer to Figures 1 to 4The fixing mechanism 26 includes a spring 22 fixedly connected to the outside of the insertion frame 9, a pull block 23 is fixedly connected to the end of the spring 22, a plug 24 is fixedly connected to the end face of the pull block 23, and the end of the plug 24 is movably sleeved into the inner cavity of the socket 11, and the inner diameter of the socket 11 is equal to the outer diameter of the plug 24.

[0030] In this embodiment, the elastic force of the spring 22 is used to drive the plug 24 to be inserted into the plug hole 11, so as to achieve a stable connection between the socket 8 and the plug frame 9.

[0031] For details, please refer to Figure 2 A plurality of screws 25 are sleeved on the base 1 .

[0032] In this embodiment, the base 1 is installed by using screws 25, so that the base 1 is installed in the tunnel.

[0033] For details, please refer to Figure 2 and Figure 4 , the inner wall of the insertion frame 9 and the outer side surface of the socket 8 are in contact with each other.

[0034] In this embodiment, the stability of the socket 8 being inserted into the inner cavity of the insertion frame 9 is ensured.

[0035] For details, please refer to Figure 2 The inner wall of the upper slide groove 3 fits with the side surface of the supporting square rod 7.

[0036] In this embodiment, the inner wall of the upper slide groove 3 is used to limit the support square rod 7 so that the support square rod 7 can only move along the axial direction of the screw rod 6.

[0037] Working principle: When in use, first fix the two bases 1 on the tunnel ground by screws 25, and the distance between the two bases 1 is adapted to the width distance of the top plate 10, then place the top plate 10 on the top of the two supporting square rods 7, and make the plug-in frame 9 on the bottom of the top plate 10 inserted into the outside of the socket 8 on the top of the supporting square rod 7, use the elastic force of the spring 22 to drive the pin 24 to be inserted into the socket 11 to fix the socket 8 and the plug-in frame 9, and then stably install the top plate 10 on the top of the supporting square rod 7, and then two staff members synchronously rotate the cranks 16 on the sides of the two supporting columns 2, and use the two cranks 16 to drive the two rotating rods 13 and the first cone The gear 14 rotates, and the meshing transmission between the first bevel gear 14 and the second bevel gear 15 drives the two screw rods 6 to rotate synchronously, and the threaded cooperation between the screw rod 6 and the supporting square rod 7 drives the two supporting square rods 7 to move upward synchronously, and the supporting square rod 7 drives the top plate 10 to move upward, so that the top surface of the top plate 10 and the top of the tunnel are abutted, so as to support the top of the tunnel, and finally, the knobs 20 on the sides of the support column 2 are rotated respectively, and the screw rod 18 is driven to rotate by the knob 20, and the push plate 19 is driven to move by the threaded cooperation between the screw rod 18 and the supporting plate 17, so that the push plate 19 and the side of the tunnel are abutted, so as to support the side of the tunnel.

[0038] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A support device for tunnel construction, comprising two bases (1), characterized in that: The top surfaces of the two bases (1) are respectively fixedly connected with support columns (2), the top surfaces of the support columns (2) are each provided with an upper slide groove (3), the bottom surfaces of the support columns (2) are respectively provided with a lower transmission groove (4), the bottom of the inner cavity of the upper slide groove (3) is fixedly sleeved with a bearing (5), the inner side of the bearing (5) is fixedly sleeved with a screw rod (6), the top ends of the screw rod (6) respectively extend to the inner cavity of the upper slide groove (3) and are threadedly sleeved with a support square rod (7), the top ends of the two support square rods (7) are respectively fixedly connected with a socket (8), the outer sides of the two sockets (8) are sleeved with an insertion frame (9), and the top surfaces of the two insertion frames (9) are fixedly connected with a top plate (10) The outer side of the insertion frame (9) is respectively provided with a fixing mechanism (26), the outer side of the socket (8) is provided with a plug hole (11), the inner cavity of the lower transmission groove (4) is rotatably connected with a rotating rod (13), the outer side of the rotating rod (13) is fixedly sleeved with a first bevel gear (14), the bottom end of the screw rod (6) extends to the inner cavity of the lower transmission groove (4) and is fixedly sleeved with a second bevel gear (15), the second bevel gear (15) and the first bevel gear (14) are meshed with each other, the two ends of the rotating rod (13) respectively extend to the outer side of the support column (2) and are fixedly connected with a crank (16), and the two sides of the support column (2) are respectively provided with a side support mechanism (12).

2. A tunnel construction support device according to claim 1, characterized in that: The side support mechanism (12) comprises a support plate (17) fixedly connected to the side of the support column (2); a screw rod (18) is threadedly sleeved on the support plate (17); one end of the screw rod (18) is rotatably connected to a push plate (19); the other end of the screw rod (18) is fixedly connected to a knob (20); two limit rods (21) are fixedly connected to the push plate (19); and the limit rods (21) and the support plate (17) are movably sleeved.

3. A tunnel construction support device according to claim 1, characterized in that: The fixing mechanism (26) comprises a spring (22) fixedly connected to the outside of the insertion frame (9); the end of the spring (22) is fixedly connected to a pull block (23); the end surface of the pull block (23) is fixedly connected to a plug (24); the end of the plug (24) is movably sleeved into the inner cavity of the insertion hole (11); the inner diameter of the insertion hole (11) is equal to the outer diameter of the plug (24).

4. A tunnel construction support device according to claim 1, characterized in that: The base (1) is sleeved with a plurality of screws (25).

5. A tunnel construction support device according to claim 1, characterized in that: The inner wall of the insertion frame (9) is in contact with the outer side surface of the socket (8).

6. A tunnel construction support device according to claim 1, characterized in that: The inner wall of the upper slide groove (3) is in contact with the side surface of the supporting square rod (7).

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