Lifting device for tunnel maintenance

Abstract

A lifting device for tunnel maintenance relates to the technical field of tunnel maintenance equipment, and comprises: a base, the upper part of which is vertically and rotatably provided with a stud; the sliding piece is arranged on the outer side of the stud in a sleeving mode, the standing frame and the driving piece are fixedly connected with the sliding piece, the transmission piece is arranged between the sliding piece and the stud, a limiting piece is arranged between the sliding piece and the stud to prevent the sliding piece and the stud from rotating synchronously, and the driving piece and the standing frame are located on the two sides of the stud respectively. The power output end of the driving part is connected with the transmission part, and the power output end of the transmission part is in threaded connection with the stud; the rotating mechanism is arranged in the base, and the stud freely penetrates into the base and is connected with the rotating mechanism; the driving piece is started to drive the transmission piece and the stud to move relatively, the sliding piece and the standing frame are driven to move in the axial direction of the stud, the stud is driven to rotate through the rotating mechanism, and therefore the lifting mechanism is driven to rotate integrally.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel maintenance equipment, in particular to a lifting device for tunnel maintenance. Background Art

[0002] Tunnels are engineering structures buried in the ground, and are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels.

[0003] After being used for a long time, existing tunnels need to be regularly maintained so as to find problems in time, thereby enhancing and ensuring the service life of the tunnel. For this purpose, in the Chinese utility model patent with the authorization announcement number CN215626613U, a lifting device for bridge and tunnel maintenance is disclosed, which can effectively raise and lower the support plate through an electric telescopic rod, a first rotating rod, a second rotating rod, a first rotating seat, and a second rotating seat, so as to facilitate the workers to work at different heights, and can protect the workers through the fence to prevent the workers from falling from high altitudes.

[0004] Although the above patent realizes the lifting and lowering of workers, the size of the support plate of the lifting device is limited, and the support plate is fixed, which limits the range of movement of workers on the support plate, resulting in a limited maintenance range of the tunnel for workers. If maintenance is to be carried out in other places in the tunnel, the lifting device needs to be moved as a whole, which is very inconvenient to operate and reduces the maintenance efficiency of the tunnel. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a lifting device for tunnel maintenance, which solves the problem of limited maintenance range of the lifting device existing in the prior art.

[0006] A lifting device for tunnel maintenance, comprising:

[0007] A base, the upper portion of which is vertically rotatably mounted with studs;

[0008] A lifting mechanism, comprising a sliding member sleeved on the outside of the stud, a standing frame and a driving member fixedly connected to the sliding member, and a transmission member arranged between the sliding member and the stud, a limiter is arranged between the sliding member and the stud to prevent the sliding member and the stud from rotating synchronously, the driving member and the standing frame are respectively located on both sides of the stud, the power output end of the driving member is connected to the transmission member, and the power output end of the transmission member is threadedly connected to the stud; and

[0009] The rotating mechanism is arranged in the base, and the stud freely penetrates into the base and is connected with the rotating mechanism.

[0010] Compared with the prior art, the utility model has the following beneficial effects: when in use, the operator stands on the standing frame, and then starts the driving member to drive the transmission member and the stud to move relative to each other. Since a limit member is provided between the sliding member and the stud, and the power output end of the transmission member is threadedly connected to the stud, the transmission member can drive the sliding member and the standing frame to move axially along the stud, so that the operator can work at different heights, and can also drive the stud to rotate through the rotating mechanism, thereby driving the lifting mechanism to rotate as a whole, so as to increase the working range of the operator and improve the efficiency of tunnel maintenance.

[0011] Preferably, there are two transmission parts and they are arranged one by one between the upper and lower sides of the sliding part and the stud. Each transmission part includes a gear assembly and a threaded sleeve. The threaded sleeve is rotatably installed in the sliding part. The threaded sleeve is sleeved on the stud and threadedly connected thereto. The gear assembly is located outside the sliding part and is arranged between the power output end of the driving part and the threaded sleeve.

[0012] Preferably, the gear assembly comprises a first gear and a second gear meshing with each other, the first gear is connected to the power output end of the driving member, and the second gear is coaxially fixedly connected to the threaded sleeve.

[0013] Preferably, the sliding member includes a sleeve slidingly sleeved on the outside of the stud, the two threaded sleeves are coaxially rotatably installed in the two ends of the sleeve one by one, the driving member and the standing frame are fixedly installed on the side wall of the sleeve, and the limit member is arranged between the sleeve and the stud.

[0014] Preferably, the driving member includes a double-headed motor fixedly mounted on the side wall of the sleeve and two rotating shafts coaxially fixedly connected to the two power output shafts of the double-headed motor in a one-to-one correspondence, and each rotating shaft is coaxially fixedly connected to the corresponding first gear.

[0015] Preferably, a slide groove is provided on the side wall of the stud along its axial direction, and the limiting member comprises a limiting block fixedly mounted on the inner wall of the sleeve, and the limiting block is slidably connected to the slide groove.

[0016] Preferably, an installation cavity is provided in the base, and the rotating mechanism includes a driving motor fixedly installed in the base and a first bevel gear and a second bevel gear located in the rotating cavity and meshing with each other, the stud can freely penetrate into the installation cavity and be coaxially fixedly connected to the first bevel gear, and the power output shaft of the driving motor can freely pass into the rotating cavity and be coaxially fixedly connected to the second bevel gear.

[0017] Preferably, a ladder is vertically fixedly mounted on one side of the base.

[0018] Preferably, a plurality of wheels are mounted on the bottom of the base along its circumference.

[0019] Preferably, a plurality of hydraulic support rods are fixedly mounted on two opposite side walls of the base.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of an embodiment of the utility model.

[0022] Figure 2 for Figure 1 A partial cross-sectional view of .

[0023] Figure 3 for Figure 1 Cross-sectional view of the middle casing.

[0024] The numbers in the figure are: 1. base; 11. installation cavity; 12. ladder; 13. wheel; 14. hydraulic support rod; 2. stand; 21. control console; 3. sleeve; 31. limit block; 4. double-headed motor; 41. rotating shaft; 42. first gear; 5. second gear; 6. threaded sleeve; 7. stud; 71. slide groove; 72. baffle; 73. first bevel gear; 74. second bevel gear; 8. drive motor. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0026] like Figure 1-2 As shown, an embodiment of the utility model provides a lifting device for tunnel maintenance, comprising: a base 1, on the upper part of which a stud 7 is vertically rotatably installed; a lifting mechanism, which comprises a sliding member sleeved on the outside of the stud 7, a standing frame 2 and a driving member fixedly connected to the sliding member, and a transmission member arranged between the sliding member and the stud 7, a limit member is provided between the sliding member and the stud 7 to prevent the sliding member and the stud 7 from rotating synchronously, the driving member and the standing frame 2 are respectively located on both sides of the stud 7, the power output end of the driving member is connected to the transmission member, and the power output end of the transmission member is threadedly connected to the stud 7; and a rotating mechanism, which is arranged in the base 1, and the stud 7 is freely inserted into the base 1 and connected to the rotating mechanism.

[0027] The operator stands on the standing frame 2, and then starts the driving member to drive the transmission member and the stud 7 to move relative to each other. Since a limit member is provided between the sliding member and the stud 7, and the power output end of the transmission member is threadedly connected to the stud 7, the transmission member can drive the sliding member and the standing frame 2 to move axially along the stud 7, so that the operator can work at different heights, and can also drive the stud 7 to rotate through the rotating mechanism, thereby driving the lifting mechanism to rotate as a whole, so as to increase the working range of the operator and improve the efficiency of tunnel maintenance.

[0028] And preferably, a baffle 72 is installed at one end of the stud 7 away from the base 1 to prevent the threaded sleeve 6 from being disconnected from the stud 7 during rotation.

[0029] like Figure 1-3 As shown, according to another embodiment of the utility model, the lifting device for tunnel maintenance further optimizes the transmission member, sliding member, driving member and limit member included therein, and the transmission member has two and is arranged one-to-one between the upper and lower sides of the sliding member and the stud 7, each transmission member includes a gear assembly and a threaded sleeve 6, the threaded sleeve 6 is rotatably installed in the sliding member, the threaded sleeve 6 is sleeved on the stud 7 and is threadedly connected thereto, the gear assembly is located outside the sliding member and is arranged between the power output end of the driving member and the threaded sleeve 6; the gear assembly includes a first gear 42 and a second gear 5 that are meshed with each other, the first gear 42 is connected to the power output end of the driving member, and the second gear 5 is coaxially fixedly connected to the threaded sleeve 6.

[0030] The sliding member includes a sleeve 3 slidably mounted on the outside of the stud 7, and the two threaded sleeves 6 are coaxially rotatably mounted at the two ends of the sleeve 3 in a one-to-one correspondence. The driving member and the standing frame 2 are both fixedly mounted on the side wall of the sleeve 3, and the limit member is arranged between the sleeve 3 and the stud 7; and preferably, a sliding groove 71 is opened on the side wall of the stud 7 along its axial direction, and the limit member includes a limiting block 31 fixedly mounted on the inner wall of the sleeve 3, and the limiting block 31 is slidably connected to the sliding groove 71, so that the sleeve 3 will not rotate synchronously with the threaded sleeve 6.

[0031] The driving member includes a double-headed motor 4 fixedly mounted on the side wall of the sleeve 3 and two rotating shafts 41 coaxially fixedly connected to the two power output shafts of the double-headed motor 4 in a one-to-one correspondence. Each rotating shaft 41 is coaxially fixedly connected to the corresponding first gear 42.

[0032] Start the double-headed motor 4 to drive the two rotating shafts 41 to rotate, and through the transmission of the two first gears 42 and the two second gears 5, drive the two threaded sleeves 6 to rotate and move relative to the stud 7. Moreover, due to the cooperation between the limit block 31 and the slide groove 71, the sleeve 3 does not rotate together with the threaded sleeve 6, thereby driving the standing frame 2 and the operator to move in the vertical direction.

[0033] like Figure 2 As shown, according to another embodiment of the utility model, the lifting device for tunnel maintenance further optimizes the rotating mechanism it includes. Preferably, an installation cavity 11 is opened in the base 1, and the rotating mechanism includes a driving motor 8 fixedly installed in the base 1 and a first bevel gear 73 and a second bevel gear 74 located in the rotating cavity and meshing with each other. The stud 7 can freely penetrate into the installation cavity 11 and is coaxially fixedly connected to the first bevel gear 73, and the power output shaft of the driving motor 8 can freely pass into the rotating cavity and is coaxially fixedly connected to the second bevel gear 74; the first bevel gear 73 and the second bevel gear 74 are driven to rotate by the driving motor 8, thereby driving the stud 7 to rotate, so as to drive the standing frame 2 to rotate.

[0034] Preferably, the above-mentioned double-headed motor 4 and drive motor 8 can both rotate forward and reverse and also have an automatic brake mechanism, so that the double-headed motor 4 and drive motor 8 can rotate in different directions, and when the double-headed motor 4 and drive motor 8 are not rotating, their free rotation will be restricted by the automatic brake mechanism, thereby ensuring the safety of the operator working on the standing frame 2; the specific structure and use principle of the automatic brake mechanism are all existing technologies and are not described in detail here.

[0035] like Figure 1-2 As shown, according to another embodiment of the utility model, in the described lifting device for tunnel maintenance, preferably, a ladder 12 is vertically fixedly installed on one side of the base 1 to facilitate the operator to get on and off the base 1; a plurality of wheels 13 are installed along the circumference of the bottom of the base 1 to facilitate the overall movement of the lifting device; a plurality of hydraulic support rods 14 are fixedly installed on the two opposite side walls of the base 1 to support the base 1 after it is moved into place to prevent the base 1 from moving when the operator is working; a control console 21 is also provided on the standing frame 2, and the control console 21 is electrically connected to the double-headed motor 4 and the drive motor 8 to control the switching and forward and reverse rotation of the double-headed motor 4 and the drive motor 8, and the control console 21, the double-headed motor 4 and the drive motor 8 are all powered by an external power supply.

[0036] The operating principle of the utility model is as follows: when the utility model is used, the operator stands on the standing frame 2, and then starts the double-headed motor 4 through the control console 21 to drive the two rotating shafts 41 to rotate, and through the transmission of the two first gears 42 and the two second gears 5, the two threaded sleeves 6 are driven to rotate and move relative to the stud 7, and due to the cooperation between the limit block 31 and the slide groove 71, the sleeve 3 does not rotate synchronously with the threaded sleeve 6, thereby driving the standing frame 2 and the operator to move in the vertical direction, so that the operator can work at different heights; when the operator needs to change the working position, the drive motor 8 is started through the control console 21 to drive the first bevel gear 73 and the second bevel gear 74 to rotate, thereby driving the stud 7 to rotate, so that the standing frame 2 rotates, so that the operator can change the working position.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A lifting device for tunnel maintenance, characterized in that: include: A base (1) having a stud (7) mounted vertically and rotatably on its upper portion; A lifting mechanism, comprising a sliding member sleeved on the outside of a stud (7), a standing frame (2) and a driving member fixedly connected to the sliding member, and a transmission member arranged between the sliding member and the stud (7), a limiting member is arranged between the sliding member and the stud (7) to prevent the sliding member and the stud (7) from rotating synchronously, the driving member and the standing frame (2) are respectively located on both sides of the stud (7), the power output end of the driving member is connected to the transmission member, and the power output end of the transmission member is threadedly connected to the stud (7); as well as The rotating mechanism is arranged in the base (1), and the stud (7) freely penetrates into the base (1) and is connected to the rotating mechanism.

2. A lifting device for tunnel maintenance according to claim 1, characterized in that: There are two transmission members, which are arranged one by one between the upper and lower sides of the sliding member and the stud (7). Each transmission member comprises a gear assembly and a threaded sleeve (6). The threaded sleeve (6) is rotatably installed in the sliding member. The threaded sleeve (6) is sleeved on the stud (7) and is threadedly connected thereto. The gear assembly is located outside the sliding member and is arranged between the power output end of the driving member and the threaded sleeve (6).

3. A lifting device for tunnel maintenance according to claim 2, characterized in that: The gear assembly comprises a first gear (42) and a second gear (5) meshing with each other, the first gear (42) being connected to the power output end of the driving member, and the second gear (5) being coaxially fixedly connected to the threaded sleeve (6).

4. A lifting device for tunnel maintenance according to claim 3, characterized in that: The sliding member comprises a sleeve (3) which is slidably mounted on the outside of the stud (7); the two threaded sleeves (6) are coaxially rotatably mounted in the two ends of the sleeve (3) in a one-to-one correspondence; the driving member and the standing frame (2) are both fixedly mounted on the side wall of the sleeve (3); and the limiting member is arranged between the sleeve (3) and the stud (7).

5. A lifting device for tunnel maintenance according to claim 4, characterized in that: The driving member comprises a double-headed motor (4) fixedly mounted on the side wall of the sleeve (3) and two rotating shafts (41) coaxially and fixedly connected to two power output shafts of the double-headed motor (4) in a one-to-one correspondence, and each rotating shaft (41) is coaxially and fixedly connected to a corresponding first gear (42).

6. A lifting device for tunnel maintenance according to claim 4, characterized in that: A sliding groove (71) is provided on the side wall of the stud (7) along its axial direction, and the limiting member comprises a limiting block (31) fixedly mounted on the inner wall of the sleeve (3), and the limiting block (31) is slidably connected to the sliding groove (71).

7. The tunnel maintenance lifting device according to claim 1, characterized in that: The base (1) is provided with an installation cavity (11), the rotating mechanism comprises a driving motor (8) fixedly installed in the base (1), and a first bevel gear (73) and a second bevel gear (74) located in the rotating cavity and meshing with each other, the stud (7) freely penetrates into the installation cavity (11) and is coaxially fixedly connected to the first bevel gear (73), and the power output shaft of the driving motor (8) freely passes into the rotating cavity and is coaxially fixedly connected to the second bevel gear (74).

8. The tunnel maintenance lifting device according to claim 1, characterized in that: A ladder (12) is vertically fixedly mounted on one side of the base (1).

9. The lifting device for tunnel maintenance according to claim 1, characterized in that: A plurality of wheels (13) are installed along the circumference of the bottom of the base (1).

10. The tunnel maintenance lifting device according to claim 1, characterized in that: A plurality of hydraulic support rods (14) are fixedly mounted on two opposite side walls of the base (1).

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