Height-adjustable in-hole pressure steel pipe transportation trolley

Abstract

The utility model discloses a height-adjustable in-hole pressure steel pipe transportation trolley which comprises a mounting plate, a height adjusting mechanism and a driving mechanism. When the pressure steel pipe moves up and down, balance is achieved through the four lifting assemblies, the stability is controlled through the telescopic rod, the problems that a traditional height adjusting device in a hole is difficult to unfold, and height adjusting balance cannot be guaranteed can be solved, and the practicability and the transportation efficiency of the device are improved; when the pressure steel pipe needs to be transversely moved, a driving motor drives an upper gear mounted on the side face of an output rod to rotate, a lower gear is further driven to rotate through a rack belt, then wheels and a first connecting rod are driven to rotate, and then the device is driven to move through mutual cooperation of other moving wheels; and power support can be provided for the device, the device is pushed to move in the pipeline, and then the moving efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe transport trolleys, in particular to a height-adjustable in-tunnel pressure steel pipe transport trolley. Background Art

[0002] Penstock, also known as pressure steel pipe or hydraulic steel pipe, is a steel pipeline used to transport water at extremely high pressure. The interior of the pipe is a closed environment, and the intensity of the water flow can be controlled by opening and closing sluice gates or fences. During construction at the intersection of the branch tunnel and the diversion tunnel in the lower section of a hydropower station, the penstock needs to be transported into the tunnel. Traditional transportation methods require additional installation tools to adjust the pipe's position for installation, requiring additional machinery and time-consuming transfer, resulting in low installation efficiency.

[0003] A Chinese patent application, with publication number CN203920973U, provides a multifunctional transport trolley for installing large-scale penstocks in tunnels. The trolley comprises a chassis with a plurality of wheels disposed at the bottom, a movable bracket connected to the front end of the chassis, and a movable bracket support disposed below the movable bracket, the bottom of which is supported on the ground. The chassis is provided with a plurality of penstock support brackets disposed transversely along its length, and the upper surface of the penstock support brackets is a concave arc surface. The utility model is easy to manufacture and install, fundamentally solving the problem of penstock transportation in tunnels. During the penstock installation process, the height can be adjusted using a jack at the bottom of the trolley, significantly improving the transport and withdrawal time of the penstock, thereby saving labor efficiency. The trolley is approximately twice as fast as the traditional method of transporting the penstock using a winch and laying tracks.

[0004] Although the device is equipped with a jack for height adjustment, it is difficult to operate the jack in the hole, which is time-consuming, labor-intensive and requires manual labor. In addition, manual debugging is difficult to ensure horizontal balance, which may cause safety hazards.

[0005] Therefore, it is necessary to develop a height-adjustable in-tunnel pressure steel pipe transport trolley to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to design a height-adjustable in-hole pressure steel pipe transport trolley in order to solve the above problems.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0008] A height-adjustable in-tunnel pressure steel pipe transport trolley comprising:

[0009] Mounting plate;

[0010] Height adjustment mechanism; the height adjustment mechanism includes multiple driving mechanisms and two limit blocks, the two limit blocks are arranged parallel to each other, the opposite side of the two limit blocks is an inclined surface, and the pressure steel pipe is placed between the two limit blocks and located on the inclined surface of the two limit blocks; multiple driving mechanisms are installed on the top of the mounting plate, and the lower end of each limit block is connected to the output end of at least one driving mechanism;

[0011] The driving mechanism is used to drive the mounting plate to move, and the driving mechanism is mounted on the mounting plate.

[0012] Specifically, the driving mechanism includes a motor, a second connecting rod, a worm, a bearing seat, a threaded rod, a threaded sleeve, and a telescopic rod. The motor and the bearing seat are horizontally mounted on the mounting plate. The lower end of the threaded rod is connected to the inner ring of a bearing, and the outer ring of the bearing is mounted in the bearing seat. The upper part of the threaded rod is threadedly engaged with the threaded sleeve, and the top of the threaded sleeve is connected to the bottom of the limit block. The worm gear is fixedly sleeved on the middle part of the threaded rod. The output shaft of the motor is connected to the first end of the second connecting rod, and the second end of the second connecting rod is connected to the worm, and the worm is engaged with the worm gear. The second connecting rod is perpendicular to the threaded rod, the lower end of the telescopic rod is connected to the mounting plate, the upper end of the telescopic rod is connected to the bottom of the limit block, and the telescopic rod is parallel to the threaded rod.

[0013] Specifically, the pushing mechanism also includes a shell, which is installed on the base plate, and the worm gear and worm are placed in the shell. A through hole for the threaded rod to pass through is provided on the top of the shell, and a through hole for the second connecting rod to pass through is provided on the side wall of the shell.

[0014] Furthermore, the pushing mechanism also includes a fixing member, and the motor is fixedly mounted on the mounting plate via the fixing member.

[0015] Furthermore, the pushing mechanism also includes a connecting sleeve, which is sleeved on the upper end of the threaded sleeve, and the upper end of the connecting sleeve is connected to the bottom of the limiting block.

[0016] Furthermore, a rubber pad is provided on the inclined surface of the limiting block.

[0017] Furthermore, the driving mechanism includes a driving wheel group, at least one group of driven wheel groups, a driving motor, and a reduction assembly. The output shaft of the driving motor is connected to the input end of the reduction motor. The driving wheel group and the driven wheel group each include two wheels and a first connecting rod. The two ends of the first connecting rod are respectively connected to a wheel. A plurality of connecting parts are vertically installed at the bottom of the mounting plate. The first connecting rod is rotatably installed on the connecting part. The output end of the reduction motor is connected to the wheel of the driving wheel group.

[0018] Furthermore, the driving mechanism also includes an upper gear, a rack belt, and a lower gear. The upper gear is connected to the output end of the reduction motor, and the lower gear is connected to the rotating shaft of the wheel of the driving wheel group. The upper gear and the lower gear are transmitted through the rack belt. The upper gear is placed directly above the lower gear, and the output shaft of the driving motor is parallel to the first connecting rod.

[0019] Furthermore, the driving mechanism also includes a plurality of mounting members, the bottoms of the plurality of mounting members are mounted on the mounting plate, and the driving motor is fixedly mounted above the plurality of mounting members.

[0020] Furthermore, the driving mechanism further comprises a mounting block, the bottom of the mounting block is mounted on the mounting plate, and the deceleration assembly is mounted on the mounting block.

[0021] The beneficial effects of the present invention are:

[0022] 1) The height of the in-tunnel pressure steel pipe transport trolley is adjustable. When the height of the pressure steel pipe needs to be adjusted, the servo motor is turned on. The servo motor drives the second connecting rod to rotate, further drives the second connecting rod to rotate, drives the worm to rotate, drives the worm wheel to rotate, and further drives the threaded rod to rotate, and cooperates with the threaded sleeve to push the threaded sleeve and the connecting sleeve to rise, push the limit block and the rubber pad to move upward, and push the pressure steel pipe to move upward to meet the requirement of adjusting the height of the pressure steel pipe. During movement, balance is achieved through four sets of lifting components, and stability is controlled by the telescopic rod. It can solve the problem that the traditional height adjustment device in the tunnel is difficult to unfold and the height adjustment balance cannot be guaranteed, thereby improving the practicality and transportation efficiency of the device.

[0023] 2) The height-adjustable in-hole pressure steel pipe transport trolley, when the pressure steel pipe needs to be moved, turns on the drive motor, and after the drive motor slows down the motor speed and increases the drive motor torque through the reduction component, drives the upper gear installed on the side of the output rod to rotate, and further drives the lower gear to rotate through the rack belt, thereby driving the wheels and the first connecting rod to rotate, and then the device is driven to move through the mutual cooperation of the remaining moving wheels, thereby realizing the movement of the pressure steel pipe, providing power support for the device, pushing the device to move inside the pipeline, and thus improving the movement efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of a height-adjustable in-tunnel pressure steel pipe transport trolley in an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of a local structure in an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the driving mechanism structure in an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the housing in an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the partial structure of the height adjustment mechanism in the embodiment of the utility model;

[0029] Figure 6 Schematic diagram of the telescopic rod structure in an embodiment of the present utility model.

[0030] In the figure: 1. Mounting plate; 2. Penstock; 3. Driving mechanism; 301. Mounting part; 302. Driving motor; 303. Reduction assembly; 304. Mounting block; 305. Upper gear; 306. Rack belt; 307. Connecting part; 308. Wheel; 309. Lower gear; 310. First connecting rod; 4. Height adjustment mechanism; 401. Bottom plate; 402. Bearing seat; 403. Threaded rod; 404. Threaded sleeve; 405. Connecting sleeve; 406. Worm gear; 407. Worm; 408. Housing; 409. Fixing part; 410. Double-headed motor; 411. Second connecting rod; 412. Telescopic rod; 413. Limiting block; 414. Rubber pad; 5. Protective shell; 6. Heat dissipation hole. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present invention. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0035] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0036] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings.

[0038] like Figure 1-2 As shown, a height-adjustable in-tunnel pressure steel pipe transport trolley comprises:

[0039] Mounting plate 1;

[0040] Height adjustment mechanism 4; the height adjustment mechanism 4 includes multiple driving mechanisms and two limit blocks 413. The two limit blocks 413 are arranged parallel to each other, and the sides of the two limit blocks 413 arranged opposite to each other are inclined. The pressure steel pipe 2 is placed between the two limit blocks 413 and is located on the inclined surfaces of the two limit blocks 413; multiple driving mechanisms are installed on the top of the mounting plate 1, and the lower end of each limit block 413 is connected to the output end of at least one driving mechanism;

[0041] The driving mechanism 3 is used to drive the mounting plate 1 to move, and the driving mechanism 3 is installed on the mounting plate 1.

[0042] like Figure 1 and 2 As shown in Figures 4, 5, and 6, in some embodiments, the pushing mechanism includes a motor, a second connecting rod 411, a worm 407, a bearing seat 402, a threaded rod 403, a threaded sleeve 404, and a telescopic rod 412. The motor and the bearing seat 402 are horizontally mounted on the mounting plate 1. The lower end of the threaded rod 403 is connected to the inner ring of a bearing, and the outer ring of the bearing is mounted in the bearing seat 402. The upper part of the threaded rod 403 is threadedly matched with the threaded sleeve 404, and the top of the threaded sleeve 404 is connected to the limit block. 413 is connected at the bottom, the worm gear 406 is fixedly sleeved on the middle part of the threaded rod 403, the output shaft of the motor is connected to the first end of the second connecting rod 411, the second end of the second connecting rod 411 is connected to the worm 407, the worm 407 and the worm gear 406 are matched for transmission, the second connecting rod 411 is perpendicular to the threaded rod 403, the lower end of the telescopic rod 412 is connected to the mounting plate 1, the upper end of the telescopic rod 412 is connected to the bottom of the limit block 413, and the telescopic rod 412 is parallel to the threaded rod 403.

[0043] like Figure 2 As shown, in some embodiments, there are four pushing mechanisms, but the motor uses a double-headed motor 410, there are two motors, and only two telescopic rods 412 are needed. The output ends of the double-headed motor 410 are respectively connected to the first ends of the two second connecting rods 411, and one telescopic rod 412 is connected under each limit block 413.

[0044] like Figure 2 As shown, in some embodiments, the second connecting rod 411 is perpendicular to the limiting block 413 .

[0045] like Figure 2 As shown, in some embodiments, the driving mechanism further includes a protective shell 5, which is mounted on the outside of the double-headed motor 410. Two opposite sides of the protective shell 5 are provided with through holes for the second connecting rod 411 to pass through. Heat dissipation holes 6 are provided on the side walls of the protective shell 5.

[0046] like Figure 2 and 4 As shown, in some embodiments, the pushing mechanism also includes a shell 408, which is mounted on the base plate 401, and the worm gear 406 and the worm 407 are placed in the shell 408. A through hole for the threaded rod 403 to pass through is provided on the top of the shell 408, and a through hole for the second connecting rod 411 to pass through is provided on the side wall of the shell 408.

[0047] like Figure 4 As shown, in some embodiments, the pushing mechanism further includes a fixing member 409 , and the motor is fixedly mounted on the mounting plate 1 via the fixing member 409 .

[0048] like Figure 5 As shown, in some embodiments, the pushing mechanism further includes a connecting sleeve 405 , which is sleeved on the upper end of the threaded sleeve 404 , and the upper end of the connecting sleeve 405 is connected to the bottom of the limiting block 413 .

[0049] like Figure 6 As shown, in some embodiments, a rubber pad 414 is provided on the inclined surface of the limiting block 413 .

[0050] like Figure 1-3 As shown, in some embodiments, the driving mechanism 3 includes a driving wheel group, two sets of driven wheel groups, a driving motor 302, and a reduction assembly 303. The output shaft of the driving motor 302 is connected to the input end of the reduction motor. The driving wheel group and the driven wheel group each include two wheels 308 and a first connecting rod 310. The two ends of the first connecting rod 310 are respectively connected to a wheel 308. A plurality of connecting members 307 are vertically installed at the bottom of the mounting plate 1. The first connecting rod 310 is rotatably installed on the connecting member 307. The output end of the reduction motor is transmission-connected to the wheel 308 of the driving wheel group.

[0051] like Figure 3 As shown, in some embodiments, the driving mechanism 3 also includes an upper gear 305, a rack belt 306, and a lower gear 309. The upper gear 305 is connected to the output end of the reduction motor, and the lower gear 309 is connected to the rotating shaft of the wheel 308 of the driving wheel group. The upper gear 305 and the lower gear 309 are transmitted through the rack belt 306. The upper gear 305 is placed directly above the lower gear 309, and the output shaft of the driving motor 302 is parallel to the first connecting rod 310.

[0052] like Figure 3 As shown, in some embodiments, the driving mechanism 3 further includes a plurality of mounting members 301 , the bottoms of the plurality of mounting members 301 are mounted on the mounting plate 1 , and the driving motor 302 is fixedly mounted above the plurality of mounting members 301 .

[0053] like Figure 3 As shown, in some embodiments, the driving mechanism 3 further includes a mounting block 304 , the bottom of the mounting block 304 is mounted on the mounting plate 1 , and the deceleration assembly 303 is mounted on the mounting block 304 .

[0054] When the height of the pressure steel pipe 2 needs to be adjusted, the double-headed motor 410 is turned on, and the double-headed motor 410 drives the second connecting rod 411 to rotate, further drives the second connecting rod 411 to rotate, drives the worm 407 to rotate, further drives the worm wheel 406 to rotate, and then drives the threaded rod 403 to rotate, and cooperates with the threaded sleeve 404 to push the threaded sleeve 404 and the connecting sleeve 405 to rise, and then pushes the limit block 413 and the rubber pad 414 to move upward, and then pushes the pressure steel pipe 2 to move upward, so as to meet the requirement of adjusting the height of the pressure steel pipe 2. Balance is achieved through four sets of lifting components during movement, and stability is controlled by the telescopic rod 412.

[0055] Specifically, when the pressure steel pipe 2 needs to be moved, the drive motor 302 is turned on. After the drive motor 302 slows down the motor speed and increases the torque of the drive motor 302 through the deceleration component 303, it drives the upper gear 305 installed on the side of the output rod to rotate, and further drives the lower gear 309 to rotate through the rack belt 306, thereby driving the wheel 308 and the first connecting rod 310 to rotate, and then the device is driven to move through the mutual cooperation of the remaining moving wheels, thereby realizing the movement operation of the pressure steel pipe 2.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A height-adjustable in-tunnel pressure steel pipe transport trolley, characterized in that: include: Mounting plate; Height adjustment mechanism; the height adjustment mechanism includes multiple driving mechanisms and two limit blocks, the two limit blocks are arranged parallel to each other, the opposite side of the two limit blocks is an inclined surface, and the pressure steel pipe is placed between the two limit blocks and located on the inclined surface of the two limit blocks; multiple driving mechanisms are installed on the top of the mounting plate, and the lower end of each limit block is connected to the output end of at least one driving mechanism; The driving mechanism is used to drive the mounting plate to move, and the driving mechanism is mounted on the mounting plate.

2. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 1, characterized in that: The driving mechanism includes a motor, a second connecting rod, a worm, a bearing seat, a threaded rod, a threaded sleeve, and a telescopic rod. The motor and the bearing seat are horizontally mounted on the mounting plate. The lower end of the threaded rod is connected to the inner ring of a bearing, and the outer ring of the bearing is mounted in the bearing seat. The upper part of the threaded rod is threadedly engaged with the threaded sleeve, and the top of the threaded sleeve is connected to the bottom of the limit block. The worm gear is fixedly sleeved on the middle part of the threaded rod. The output shaft of the motor is connected to the first end of the second connecting rod, and the second end of the second connecting rod is connected to the worm, and the worm is engaged with the worm gear. The second connecting rod is perpendicular to the threaded rod, the lower end of the telescopic rod is connected to the mounting plate, the upper end of the telescopic rod is connected to the bottom of the limit block, and the telescopic rod is parallel to the threaded rod.

3. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 2, characterized in that: The pushing mechanism also includes a shell, which is installed on the base plate. The worm gear and worm are placed in the shell. The top of the shell is provided with a through hole for the threaded rod to pass through, and the side wall of the shell is provided with a through hole for the second connecting rod to pass through.

4. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 2, characterized in that: The pushing mechanism also includes a fixing piece, and the motor is fixedly mounted on the mounting plate via the fixing piece.

5. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 2, characterized in that: The pushing mechanism also includes a connecting sleeve, which is sleeved on the upper end of the threaded sleeve, and the upper end of the connecting sleeve is connected to the bottom of the limiting block.

6. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 1, characterized in that: A rubber pad is provided on the inclined surface of the limiting block.

7. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 1, characterized in that: The driving mechanism includes a driving wheel group, at least one driven wheel group, a driving motor, and a reduction assembly. The output shaft of the driving motor is connected to the input end of the reduction motor. The driving wheel group and the driven wheel group each include two wheels and a first connecting rod. The two ends of the first connecting rod are respectively connected to a wheel. A plurality of connecting parts are vertically installed at the bottom of the mounting plate. The first connecting rod is rotatably installed on the connecting part. The output end of the reduction motor is connected to the wheel of the driving wheel group.

8. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 7, characterized in that: The driving mechanism also includes an upper gear, a rack belt, and a lower gear. The upper gear is connected to the output end of the reduction motor, and the lower gear is connected to the rotating shaft of the wheel of the driving wheel group. The upper gear and the lower gear are transmitted through the rack belt. The upper gear is placed directly above the lower gear, and the output shaft of the driving motor is parallel to the first connecting rod.

9. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 7, characterized in that: The driving mechanism also includes a plurality of mounting members, the bottoms of the plurality of mounting members are mounted on the mounting plate, and the driving motor is fixedly mounted above the plurality of mounting members.

10. The height-adjustable in-hole pressure steel pipe transport trolley according to claim 7, characterized in that: The driving mechanism further comprises a mounting block, the bottom of which is mounted on the mounting plate, and the deceleration assembly is mounted on the mounting block.

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