Tunnel maintenance platform

Abstract

A tunnel maintenance platform relates to the technical field of tunnel maintenance equipment and comprises an operation platform which is horizontally arranged, two supporting frames are oppositely and fixedly mounted at the bottom of the operation platform, and a lifting channel is formed in the operation platform; the lifting device comprises a mounting frame arranged at the bottom of the operation platform, a platform slidably arranged between the mounting frame and the lifting channel, a driving part fixedly mounted at the bottom of the operation platform and a transmission part arranged between the driving part and the mounting frame, and the platform is connected with the power output end of the transmission part; an operator stands on the platform, then the driving part is started to enable the platform to move in the vertical direction through the transmission part, and therefore the operator is conveyed to the operation platform from the position below the operation platform through the lifting channel to work; the operation is simple and convenient, an operator can quickly go up and down the operation platform, time and labor are saved, and the risk that the operator moves on the crawling ladder is eliminated.

Description

Technical Field

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

[0002] After the concrete of the tunnel is poured, if the climate is hot and the air is dry, if it is not maintained in time, the water in the concrete will evaporate too quickly, resulting in dehydration. The cement particles that have formed a gel cannot be fully hydrated and cannot be transformed into stable crystals. There is a lack of sufficient bonding force, which will cause flakes or powders to fall off on the surface of the concrete. In addition, when the concrete does not have sufficient strength, the premature evaporation of water will also cause large shrinkage deformation and shrinkage cracks, affecting the durability and integrity of the concrete.

[0003] In response to the above problems, a Chinese utility model patent with authorization announcement number CN215486071U discloses a trolley for tunnel secondary lining maintenance. A high-pressure water pump is installed in the water tank to pump water into an arc-shaped water spray pipe, and then spray it out through an atomizing nozzle to act on the concrete surface of the inner wall of the tunnel to ensure that the concrete surface remains moist and the quality of maintenance is guaranteed. In addition, a water collecting plate is installed above the protective fence to collect part of the water mist sprayed out by the atomizing nozzle.

[0004] In the above-mentioned patent, if the operator wants to go up to the operating platform to work, he needs to climb up the operating platform through a ladder, which is time-consuming and laborious. Moreover, the trolley operates in a tunnel, and the space in the tunnel itself is relatively small. When the trolley enters, it will occupy most of the space, making the operator's space for movement on the ladder limited. At the same time, the visibility in the tunnel is poor, which makes it easy for the operator to step on air and get into danger when climbing up and down the ladder. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a tunnel maintenance platform, which solves the problem of inconvenience for operators in getting on and off the platform in the prior art.

[0006] A tunnel maintenance platform, comprising:

[0007] An operating platform is arranged horizontally, two supporting frames are fixedly installed facing each other at the bottom of the operating platform, and a lifting channel is opened on the operating platform; and

[0008] The lifting device comprises a mounting frame arranged at the bottom of the operating platform, a platform slidably arranged between the mounting frame and the lifting channel, a driving part fixedly installed at the bottom of the operating platform, and a transmission part arranged between the driving part and the mounting frame, wherein the platform is connected to a power output end of the transmission part;

[0009] The driving part drives the platform to slide in the vertical direction through the transmission part.

[0010] Compared with the prior art, the utility model has the following beneficial effects: when in use, the operator stands on the platform, and then starts the driving part to make the platform move in the vertical direction through the transmission part, so that the operator is sent from the bottom of the operating platform through the lifting channel to the operating platform to work; the operation is simple and convenient, so that the operator can quickly get on and off the operating platform, saving time and effort, and also eliminating the risk of the operator moving on the ladder.

[0011] Preferably, the mounting frame includes four connecting columns each having one end fixedly connected to the bottom of the operating platform and a support plate fixedly connected between the other ends of the four connecting columns, the four connecting columns are arranged in a rectangular structure, the platform is slidably arranged between the four connecting columns, the transmission part includes two groups of transmission parts arranged opposite to each other, each group of transmission parts is arranged between two adjacent connecting columns, and the power output end of each group of transmission parts is movably connected to the platform.

[0012] Preferably, each group of transmission parts includes a rotating shaft, a first bevel gear assembly, a rotating rod, two second bevel gear assemblies and two screw rods. The rotating shaft is arranged between the driving part and the first bevel gear assembly, the middle part of the rotating rod is connected to the first bevel gear assembly, and the two second bevel gear assemblies are arranged one by one between the two ends of the rotating rod and the two screw rods. The two screw rods are arranged one by one vertically and rotatably on two adjacent connecting columns, and the two screw rods of each transmission part are threadedly connected to the platform.

[0013] Preferably, the first bevel gear assembly comprises a first bevel gear and a second bevel gear meshing with each other, the first bevel gear is coaxially fixedly connected to the rotating shaft, and the second bevel gear is fixedly sleeved in the middle of the corresponding rotating rod.

[0014] Preferably, the second bevel gear assembly comprises a third bevel gear and a fourth bevel gear meshing with each other, the third bevel gear is fixedly sleeved on one end of the rotating rod, and the fourth bevel gear is coaxially fixedly connected to one end of the screw rod.

[0015] Preferably, the driving unit comprises a double-headed motor fixedly mounted on the bottom of the operating platform, and two power output shafts of the double-headed motor are coaxially fixedly connected to the two rotating shafts in a one-to-one correspondence.

[0016] Preferably, two first slide grooves are opened facing each other at the lower part of the operating platform, and the two first slide grooves are located on both sides of the lifting channel, and second slide grooves connected with the lifting channel are vertically opened on the two opposite side walls of the two first slide grooves, and a rotating hole connected with the corresponding first slide groove is vertically opened in each connecting column, and a strip hole connected with the corresponding second slide groove is vertically opened on one side wall of the rotating hole, wherein the strip holes of one or two adjacent connecting columns and the strip holes of the other two adjacent connecting columns are arranged facing each other in a one-to-one manner, and four screws are rotatably installed between the four rotating holes and the corresponding first slide grooves in a one-to-one manner, and the platform is slidably arranged between the four rotating holes, the four strip holes, the two second slide grooves and the two first slide grooves.

[0017] Preferably, a mounting plate is horizontally fixedly mounted on the bottom of each support frame, the mounting plate extends in a direction away from the other support frame, and a plurality of wheels are evenly spaced at intervals on the bottom of the mounting plate.

[0018] Preferably, it also includes a water spray mechanism, which includes two water tanks fixedly installed one by one on the upper part of the extension sections of the two mounting plates, two water pumps fixedly installed one by one on the upper part of the two water tanks, and a water spray member arranged in an arc shape on the upper part of the operating platform, each water pump is arranged between the corresponding water tank and the water spray member, and the water spray member is bent away from the operating platform.

[0019] Preferably, a guardrail is fixedly installed on the upper part of the operating platform along its circumference.

[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 Assembly cross-sectional view of the lifting device and operating platform.

[0023] Figure 3 for Figure 1 Front view of the assembly of the driving part and the transmission part of the middle lifting device.

[0024] The numbers in the figure are as follows: 1. support frame; 11. mounting plate; 12. wheel; 2. operating platform; 21. lifting channel; 22. first slide; 23. second slide; 3. water spraying part; 31. water tank; 32. water pump; 4. connecting column; 41. rotating hole; 42. strip hole; 5. support plate; 51. protective cover; 6. double-headed motor; 61. rotating shaft; 62. fixing plate; 63. first bevel gear; 64. second bevel gear; 65. rotating rod; 66. third bevel gear; 67. fourth bevel gear; 68. screw; 7. platform; 8. guardrail. 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 1-3 As shown, an embodiment of the utility model provides a tunnel maintenance platform, including: an operating platform 2, which is arranged horizontally, and two support frames 1 are fixedly installed facing each other at the bottom of the operating platform 2, and a lifting channel 21 is opened on the operating platform 2; and a lifting device, which includes a mounting frame arranged at the bottom of the operating platform 2, a platform 7 slidably arranged between the mounting frame and the lifting channel 21, a driving part fixedly installed at the bottom of the operating platform 2, and a transmission part arranged between the driving part and the mounting frame, and the platform 7 is connected to the power output end of the transmission part; the driving part drives the platform 7 to slide in the vertical direction through the transmission part.

[0027] The operator stands on the platform 7, and then starts the driving part to move the platform 7 in the vertical direction through the transmission part, so that the operator is sent from the bottom of the operating platform 2 through the lifting channel 21 to the operating platform 2 to work; the operation is simple and convenient, so that the operator can quickly get on and off the operating platform 2, saving time and effort, and also eliminating the risk of the operator moving on the ladder.

[0028] like Figure 1-3 As shown, according to another embodiment of the utility model, the transmission part and the driving part included in the tunnel maintenance platform are further optimized, the mounting frame includes four connecting columns 4, one end of which is fixedly connected to the bottom of the operating platform 2, and a support plate 5 fixedly connected between the other ends of the four connecting columns 4, the four connecting columns 4 are arranged in a rectangular structure, the platform 7 is slidably arranged between the four connecting columns 4, the transmission part includes two groups of transmission members arranged opposite to each other, each group of transmission members is arranged between two adjacent connecting columns 4, and the power output end of each group of transmission members is movably connected to the platform 7;

[0029] Each group of transmission parts includes a rotating shaft 61, a first bevel gear assembly, a rotating rod 65, two second bevel gear assemblies and two screws 68. The rotating shaft 61 is arranged between the driving part and the first bevel gear assembly, the middle part of the rotating rod 65 is connected to the first bevel gear assembly, and the two second bevel gear assemblies are arranged one by one between the two ends of the rotating rod 65 and the two screws 68. The two screws 68 are arranged one by one vertically and rotatably on the corresponding two adjacent connecting columns 4. The two screws 68 of each transmission part are threadedly connected to the platform 7; preferably, the first bevel gear assembly includes a first bevel gear 63 and a second bevel gear 64 that are meshed with each other, the first bevel gear 63 is coaxially fixedly connected to the rotating shaft 61, and the second bevel gear 64 is fixedly sleeved in the middle part of the corresponding rotating rod 65; the second bevel gear assembly includes a third bevel gear 66 and a fourth bevel gear 67 that are meshed with each other, the third bevel gear 66 is fixedly sleeved on one end of the rotating rod 65, and the fourth bevel gear 67 is coaxially fixedly connected to one end of the screw 68.

[0030] Preferably, two oppositely arranged fixing plates 62 are installed at the bottom of the support plate 5 , and the two rotating shafts 61 freely penetrate the two fixing plates 62 in a one-to-one correspondence. The two fixing plates 62 play an auxiliary supporting role for the two rotating shafts 61 to improve the rotation stability of the two rotating shafts 61 .

[0031] In addition, two first slide grooves 22 are opened facing each other at the lower part of the operating platform 2, and the two first slide grooves 22 are located on both sides of the lifting channel 21. Second slide grooves 23 connected with the lifting channel 21 are vertically opened on the two opposite side walls of the two first slide grooves 22. A rotating hole 41 connected with the corresponding first slide groove 22 is vertically opened in each connecting column 4, and a strip hole 42 connected with the corresponding second slide groove 23 is vertically opened on one side wall of the rotating hole 41. The strip holes 42 of two adjacent connecting columns 4 and the strip holes 42 of the other two adjacent connecting columns 4 are arranged facing each other in a one-to-one manner, and four screws 68 are rotatably installed between the four rotating holes 41 and the corresponding first slide grooves 22 in a one-to-one manner. The platform 7 is slidably arranged between the four rotating holes 41, the four strip holes 42, the two second slide grooves 23 and the two first slide grooves 22.

[0032] The driving part includes a double-headed motor 6 fixedly installed at the bottom of the operating platform 2, and the two power output shafts of the double-headed motor 6 are coaxially fixedly connected with two rotating shafts 61 in a one-to-one correspondence; preferably, the double-headed motor 6 can rotate forward and reverse, and has an automatic braking device to ensure that the double-headed motor 6 does not rotate freely when it is stopped, and the specific structure and use principle of the automatic braking device are existing technologies and are not described in detail here.

[0033] The double-headed motor 6 rotates, driving the two rotating shafts 61 to rotate, and through the transmission of the first bevel gear 63, the second bevel gear 64, the third bevel gear 66, the fourth bevel gear 67 and the rotating rod 65, the four screws 68 are driven to rotate, so that the platform 7 slides vertically along the four rotating holes 41, the four bar holes 42, the two second slide grooves 23 and the two first slide grooves 22.

[0034] And preferably, a protective cover 51 is fixedly installed at the bottom of the support plate 5, and the protective cover 51 covers the double-headed motor 6, the rotating shaft 61, the first bevel gear 63, the second bevel gear 64, the third bevel gear 66, the fourth bevel gear 67 and the rotating rod 65 inside for protection.

[0035] like Figure 1 As shown, according to another embodiment of the utility model, in the tunnel maintenance platform, a mounting plate 11 is horizontally fixedly installed at the bottom of each support frame 1, and the mounting plate 11 extends in a direction away from the other support frame 1, and a plurality of wheels 12 are evenly spaced at the bottom of the mounting plate 11; and preferably, the tunnel maintenance platform also includes a water spraying mechanism, and the water spraying mechanism includes two water tanks 31 fixedly installed one by one on the upper part of the extension section of the two mounting plates 11, two water pumps 32 fixedly installed one by one on the upper part of the two water tanks 31, and an arc-shaped arrangement on the upper part of the operating platform 2. The water spraying member 3, each water pump 32 is arranged between the corresponding water tank 31 and the water spraying member 3, and the water spraying member 3 is bent away from the operating platform 2; the water in the water tank 31 is pumped by the water pump 32 to supply water to the water spraying member 3, so as to spray the inner wall of the tunnel, and switching the two water pumps 32 to pump water can ensure the uninterrupted operation of the water spraying member 3, and can also replenish the empty water tank 31 with water in time; the specific structure and use principle of the water spraying member 3 are disclosed in the Chinese utility model patent with authorization announcement number CN215486071U, which belongs to the prior art and will not be described in detail here.

[0036] like Figure 1 As shown, according to another embodiment of the utility model, in the tunnel maintenance platform, preferably, a guardrail 8 is fixedly installed on the upper part of the operating platform 2 along its circumference to improve the safety of the operator working on the operating platform 2.

[0037] The operating principle of the utility model is as follows: when the utility model is used, the operator stands on the platform 7, and then starts the double-headed motor 6 to drive the two rotating shafts 61 to rotate, and the four screws 68 are driven to rotate through the transmission of the first bevel gear 63, the second bevel gear 64, the third bevel gear 66, the fourth bevel gear 67 and the rotating rod 65. Since the four screws 68 are all threadedly connected to the platform 7, they can drive the platform 7 to slide vertically along the four rotating holes 41, the four bar holes 42, the two second slide grooves 23 and the two first slide grooves 22, so that the operator is sent from the bottom of the operating platform 2 through the lifting channel 21 to the operating platform 2 to work, and then one of the water pumps 32 is turned on to extract the water in the corresponding water tank 31 to supply water to the water spraying part 3 to spray the inner wall of the tunnel. When the water in the water tank 31 is almost used up, the water pump 32 is stopped, and the other water pump 32 is started to continue to supply water, and at the same time, the empty water tank 31 is replenished with water to achieve uninterrupted operation.

[0038] 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 tunnel maintenance platform, characterized in that: include: An operating platform (2) is arranged horizontally, two supporting frames (1) are fixedly mounted facing each other at the bottom of the operating platform (2), and a lifting channel (21) is provided on the operating platform (2); as well as A lifting device, comprising a mounting frame arranged at the bottom of an operating platform (2), a platform (7) slidably arranged between the mounting frame and a lifting passage (21), a driving part fixedly installed at the bottom of the operating platform (2), and a transmission part arranged between the driving part and the mounting frame, wherein the platform (7) is connected to a power output end of the transmission part; The driving part drives the platform (7) to slide in the vertical direction through the transmission part.

2. A tunnel maintenance platform according to claim 1, characterized in that: The mounting frame comprises four connecting columns (4) each having one end fixedly connected to the bottom of the operating platform (2) and a support plate (5) fixedly connected between the other ends of the four connecting columns (4); the four connecting columns (4) are arranged in a rectangular structure; the platform (7) is slidably arranged between the four connecting columns (4); the transmission part comprises two groups of transmission members arranged opposite to each other, each group of transmission members is arranged between two adjacent connecting columns (4), and the power output end of each group of transmission members is movably connected to the platform (7).

3. A tunnel maintenance platform according to claim 2, characterized in that: Each group of transmission parts includes a rotating shaft (61), a first bevel gear assembly, a rotating rod (65), two second bevel gear assemblies and two screw rods (68). The rotating shaft (61) is arranged between the driving part and the first bevel gear assembly. The middle part of the rotating rod (65) is connected to the first bevel gear assembly. The two second bevel gear assemblies are arranged one by one between the two ends of the rotating rod (65) and the two screw rods (68). The two screw rods (68) are arranged one by one vertically and rotatably on two adjacent connecting columns (4). The two screw rods (68) of each transmission part are threadedly connected to the platform (7).

4. A tunnel maintenance platform according to claim 3, characterized in that: The first bevel gear assembly comprises a first bevel gear (63) and a second bevel gear (64) meshing with each other, the first bevel gear (63) is coaxially fixedly connected to the rotating shaft (61), and the second bevel gear (64) is fixedly sleeved on the middle part of the corresponding rotating rod (65).

5. A tunnel maintenance platform according to claim 3, characterized in that: The second bevel gear assembly comprises a third bevel gear (66) and a fourth bevel gear (67) meshing with each other, the third bevel gear (66) being fixedly sleeved on one end of the rotating rod (65), and the fourth bevel gear (67) being coaxially fixedly connected to one end of the screw rod (68).

6. A tunnel maintenance platform according to claim 3, characterized in that: The driving unit comprises a double-headed motor (6) fixedly mounted on the bottom of the operating platform (2), and two power output shafts of the double-headed motor (6) are coaxially fixedly connected to two rotating shafts (61) in a one-to-one correspondence.

7. A tunnel maintenance platform according to claim 3, characterized in that: Two first slide grooves (22) are provided at the lower part of the operating platform (2) facing each other. The two first slide grooves (22) are located on both sides of the lifting channel (21). Second slide grooves (23) connected to the lifting channel (21) are vertically provided on the two opposite side walls of the two first slide grooves (22). Each connecting column (4) is vertically provided with a rotating hole (41) connected to the corresponding first slide groove (22). One side wall of the rotating hole (41) is vertically provided with a second slide groove (23) connected to the corresponding second slide groove. (23) connected strip holes (42), wherein the strip holes (42) of two adjacent connecting columns (4) are arranged opposite to the strip holes (42) of the other two adjacent connecting columns (4) in a one-to-one correspondence, and four screw rods (68) are rotatably installed between the four rotating holes (41) and the corresponding first slide grooves (22) in a one-to-one correspondence, and the platform (7) is slidably arranged between the four rotating holes (41), the four strip holes (42), the two second slide grooves (23) and the two first slide grooves (22).

8. The tunnel maintenance platform according to claim 1, characterized in that: A mounting plate (11) is horizontally fixedly mounted on the bottom of each support frame (1), the mounting plate (11) extends in a direction away from another support frame (1), and a plurality of wheels (12) are evenly spaced at intervals on the bottom of the mounting plate (11).

9. A tunnel maintenance platform according to claim 8, characterized in that: The invention also comprises a water spray mechanism, the water spray mechanism comprising two water tanks (31) fixedly mounted one by one on the upper part of the extension section of the two mounting plates (11), two water pumps (32) fixedly mounted one by one on the upper part of the two water tanks (31), and a water spray member (3) arranged in an arc shape on the upper part of the operating platform (2), each water pump (32) being arranged between the corresponding water tank (31) and the water spray member (3), and the water spray member (3) being bent away from the operating platform (2).

10. The tunnel maintenance platform according to claim 1, characterized in that: A guardrail (8) is fixedly installed on the upper part of the operating platform (2) along its circumference.

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