CN221070902U - Lifting device for trolley - Google Patents
Lifting device for trolley Download PDFInfo
- Publication number
- CN221070902U CN221070902U CN202322581960.9U CN202322581960U CN221070902U CN 221070902 U CN221070902 U CN 221070902U CN 202322581960 U CN202322581960 U CN 202322581960U CN 221070902 U CN221070902 U CN 221070902U
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- China
- Prior art keywords
- fixedly connected
- front side
- lifting device
- sliding
- trolley
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- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000004224 protection Effects 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a lifting device for a trolley, wherein the front side of the trolley is fixedly connected with the lifting device, the lifting device comprises a fixing frame, the back of the fixing frame is fixedly connected with the front side of the trolley, a notch is formed in the middle position of the front sides of the left and right groups of upright posts of the fixing frame, a driving mechanism is connected in the notch in a sliding manner, a support is fixedly connected to the position, close to the upper position, of the front side of the fixing frame, a first guide rod is fixedly connected to the middle position of the front side of the bottom end of the support, the other end of the first guide rod is fixedly connected with a first bottom plate, and the surface of the first guide rod is also connected with a protection mechanism in a sliding manner.
Description
Technical Field
The utility model relates to the technical field of lifting platforms, in particular to a lifting device for a trolley.
Background
The trolley is also called a lining trolley, is an indispensable device for secondary lining in the tunnel construction process, is also commonly used for lifting a sliding mode and turning a mode in a hydraulic tunnel, and is generally used for full-circle passing-through trolley when the hydraulic tunnel span is large. The side roof arch type trolley is most commonly applied and is commonly used for highways, railway tunnels and underground caverns; the trolley is generally composed of a template assembly, a top template frame body, a translation mechanism assembly, a portal frame assembly, a master-slave travelling mechanism, a screw jack, a hydraulic system, an electric system and the like. When constructing a tunnel, a worker generally performs work by going to the top of a concrete trolley through a steel ladder provided on a portal.
The China patent discloses a lifting device (CN20212295225. X) for a trolley, which comprises a trolley body, wherein a lifting platform is arranged on one side of a supporting frame of the trolley body, a lifting assembly for lifting the lifting platform is arranged on the trolley body, and a protection assembly is arranged on the lifting platform.
In the use of the device, when the lifting platform stalls and descends, no protective measures are taken to cause injury to constructors easily, and in the long-time use process, the middle position of the threaded rod is free of support and is easy to deform, and the threaded rod is exposed outside and is easy to cause injury to the staff.
Disclosure of utility model
For solving the technical problem, provide a elevating gear for platform truck, this technical scheme has solved the stall when descending of elevating platform who proposes among the above-mentioned prior art, does not have the protection measure and the threaded rod intermediate position does not have the support and takes place deformation easily, and exposes the problem that easily produces the injury to the staff outside.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a elevating gear for platform truck, includes the platform truck, the front side fixedly connected with elevating gear of platform truck, elevating gear includes the mount, the back fixedly connected with of mount is in the front side of platform truck, the notch has been seted up to the front side intermediate position department of two sets of stands about the mount, the inside sliding connection of notch has actuating mechanism, the front side of mount leans on position department fixedly connected with support, the bottom front side intermediate position department fixedly connected with first guide bar of support, the other end fixedly connected with first bottom plate of first guide bar, just the surface of first guide bar still sliding connection has protection machanism, wherein, actuating mechanism includes the rack, rack fixedly connected with is in one side that two sets of notches kept away from each other, rack meshing is connected with the gear, the front side fixedly connected with of gear is on servo motor's output, servo motor's output surface still rotates and is connected with the speed regulator, the front side fixedly connected with sliding plate of speed regulator, the front side intermediate position and the corner position department that is connected with servo motor around of sliding plate, the front side.
Preferably, the output end of the servo motor sequentially extends to the outside of the sliding plate and the speed regulator and is rotationally connected with the inside of the sliding plate and the speed regulator.
Preferably, the protection mechanism comprises a connecting plate, the left and right ends of the connecting plate are fixedly connected to one side surface of the two groups of sliding plates, which are close to each other, the front side of the connecting plate is fixedly connected with a first rear side guardrail and a second rear side guardrail respectively at the left and right positions, the bottom of the first rear side guardrail is fixedly connected with a second bottom plate, the top of the second bottom plate is fixedly connected with a front side guardrail at the front position, the front end of the first rear side guardrail is fixedly connected to the back relative position of the front side guardrail at the left position through a connecting guardrail, the right back of the front side guardrail is rotationally connected with a sliding door through a hinge, and the back of the sliding door is fixedly connected to the front side of the second rear side guardrail at the right position through a bolt.
The top fixedly connected with sliding tray of connecting plate, the surface sliding connection of sliding tray has the sliding door, the sliding door right side is located intermediate position department sliding connection has the second guide bar, the other end fixedly connected with fixed block of second guide bar, the front side fixedly connected with of fixed block is close to right position department in second rear side guardrail back.
Preferably, the buckle is connected with the sliding door left side stand back by rotating in the upper position.
Preferably, a limiting block is fixedly connected to the top end of the sliding groove close to the left.
Preferably, resistance rods are fixedly connected to four corners of the bottom of the second bottom plate, and springs are arranged between the resistance rods and the second bottom plate.
Compared with the prior art, the utility model provides the lifting device for the trolley, which has the following beneficial effects:
1. The utility model is provided with the driving mechanisms, when the platform is driven to move up and down by the two groups of driving mechanisms, and when the platform falls down rapidly, the rotation speed of the output end of the servo motor is controlled by the speed regulator, so that the falling speed is reduced, and the platform falls down stably.
2. The utility model is also provided with the protection mechanism, when a worker enters from the sliding door, the sliding door is fixed through the bolt, the worker is prevented from falling, when the worker reaches the working position, the sliding door can be fixed or movable through rotating the buckle, when the lifting platform is about to fall to the ground, the rigid contact with the ground is changed into the flexible contact through the resistance rod, the influence on the lifting platform is reduced, the service life is prolonged on one hand, and the comfort is increased on the other hand.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a lifting device according to the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;
FIG. 4 is a schematic top end structure of the lifting device of the present utility model;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4B according to the present utility model;
FIG. 6 is a cross-sectional view of the drive mechanism of the present utility model;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6C in accordance with the present utility model;
FIG. 8 is a schematic view of the back structure of the lifting device of the present utility model;
fig. 9 is an enlarged schematic view of the structure of fig. 8D according to the present utility model.
The reference numerals in the figures are:
1. A trolley; 2. a lifting device; 201. a fixing frame; 202. a notch; 203. a bracket; 204. a first guide bar; 205. a first base plate; 3. a driving mechanism; 301. a rack; 302. a gear; 303. a speed governor; 304. a sliding plate; 305. a servo motor; 306. a protective box; 4. a protective mechanism; 401. a connecting plate; 402. a first rear side rail; 403. a second rear side guard rail; 404. connecting a railing; 405. a front side guard rail; 406. a hinge; 407. a sliding door; 408. a sliding groove; 409. a sliding door; 410. a fixed block; 411. a second guide bar; 412. a buckle; 413. a limiting block; 414. a second base plate; 415. a plug pin; 416. a resistance rod; 417. and (3) a spring.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
Example 1
Referring to fig. 1 and 2, a lifting device for a trolley includes a trolley 1, a lifting device 2 is fixedly connected to a front side of the trolley 1, the lifting device 2 includes a fixing frame 201, a back portion of the fixing frame 201 is fixedly connected to a front side of the trolley 1, a notch 202 is formed at a front side middle position of two groups of upright posts on the left and right sides of the fixing frame 201, a driving mechanism 3 is slidably connected in the notch 202, a support 203 is fixedly connected to a front side of the fixing frame 201 at an upper position, a first guide rod 204 is fixedly connected to a bottom end front side middle position of the support 203, a first bottom plate 205 is fixedly connected to the other end of the first guide rod 204, and a protection mechanism 4 is slidably connected to a surface of the first guide rod 204.
Referring to fig. 4, 5, 6 and 7, the driving mechanism 3 includes a rack 301, the rack 301 is fixedly connected to one side of the two groups of slots 202 away from each other, the rack 301 is engaged with a gear 302, the front side of the gear 302 is fixedly connected to the output end of a servo motor 305, the surface of the output end of the servo motor 305 is further rotatably connected with a speed regulator 303, the front side of the speed regulator 303 is fixedly connected with a sliding plate 304, the middle and peripheral corner positions of the front side of the sliding plate 304 are respectively fixedly connected with a servo motor 305 and a protection box 306, and the output end of the servo motor 305 sequentially extends to the outsides of the sliding plate 304 and the speed regulator 303 and is rotatably connected with the insides of the sliding plate 304 and the speed regulator 303.
When the utility model is used, the driving mechanism 3 is fixed on the fixed frame 201 through the sliding connection between the sliding plate 304 and the notch 202, the gear 302 is driven to rotate through the output ends of the two servo motors 305 to drive the two groups of driving mechanisms 3 to move up and down on the fixed frame 201, and the platform is driven to move up and down through the two groups of driving mechanisms 3, when the platform falls down rapidly, the rotation speed of the output ends of the servo motors 305 is controlled through the speed regulator 303, so that the falling speed is reduced, and the platform falls down stably.
Example 2
Referring to fig. 2, 8 and 9, the protection mechanism 4 includes a connection plate 401, both ends of the connection plate 401 are fixedly connected to one side surface of the two sets of sliding plates 304, which are close to each other, a first rear side rail 402 and a second rear side rail 403 are fixedly connected to the front side of the connection plate 401 at positions close to the left and right, a second bottom plate 414 is fixedly connected to the bottom of the first rear side rail 402, a front side rail 405 is fixedly connected to the top of the second bottom plate 414 at a position close to the front, the front end of the first rear side rail 402 is fixedly connected to the position close to the back of the front side rail 405 through a connection rail 404, the right side back of the front side rail 405 is rotatably connected with a sliding door 407 through a hinge 406, the back of the sliding door 407 is fixedly connected to the front side of the second rear side rail 403 through a bolt 415 at a position close to the right, a second guide rod 411 is slidably connected to the right side of the sliding door 409 at a middle position, the other end of the second guide rod is fixedly connected to a stopper 410, and a stopper 410 is fixedly connected to the back side of the sliding door 409 at a position close to the left side of the sliding door 403.
When the utility model is used, the first rear side guardrail 402 and the front side guardrail 405 are connected through the connecting guardrail 404, the second rear side guardrail 403 is fixed with the front side guardrail 405 through the sliding door 407, when a worker enters from the sliding door 407, the worker is fixed through the bolt 415, the worker is prevented from falling, when the worker reaches a working position, the sliding door 409 can be fixed or movable through rotating the buckle 412, the safety of the worker is protected, and the falling is prevented.
Further in this embodiment, as shown in fig. 2 and 3, resistance rods 416 are fixedly connected to four corners of the bottom of the second bottom plate 414, and springs 417 are disposed between the resistance rods 416 and the second bottom plate 414.
When the lifting platform is about to land, the hard contact with the ground is changed into the flexible contact through the resistance rod 416, so that the influence on the lifting platform is reduced, the service life is prolonged, and the comfort is improved.
The working principle and the using flow of the utility model are as follows: when the utility model is used, when a worker enters from the sliding door 407, the sliding door 407 is fixed through the bolt 415, the worker is prevented from falling, when the worker reaches a working position, the sliding door 409 can be fixed or movable through rotating the buckle 412, the worker is protected, the driving mechanism 3 is fixed on the fixed frame 201 through sliding connection between the sliding plate 304 and the notch 202, the gear 302 is driven to rotate through the output ends of the two servo motors 305, the two groups of driving mechanisms 3 are driven to move up and down on the fixed frame 201, the platform is driven to move up and down through the two groups of driving mechanisms 3, when the platform falls fast, the rotation speed of the output end of the servo motor 305 is controlled through the speed regulator 303, so that the falling speed is reduced, when the lifting platform is about to fall to land, the hard contact with the ground is changed into flexible contact through the resistance rod 416, on one hand, the influence on the lifting platform is reduced, on the one hand, the service life is prolonged, and on the other hand, the comfort is increased.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The lifting device for the trolley is characterized by comprising the trolley (1), wherein the lifting device (2) is fixedly connected to the front side of the trolley (1), the lifting device (2) comprises a fixing frame (201), the back of the fixing frame (201) is fixedly connected to the front side of the trolley (1), a notch (202) is formed in the middle position of the front sides of the left and right groups of upright posts of the fixing frame (201), a driving mechanism (3) is slidingly connected to the inside of the notch (202), a support (203) is fixedly connected to the upper position of the front side of the fixing frame (201), a first guide rod (204) is fixedly connected to the middle position of the front side of the bottom end of the support (203), a first bottom plate (205) is fixedly connected to the other end of the first guide rod (204), and a protection mechanism (4) is slidingly connected to the surface of the first guide rod (204).
The driving mechanism (3) comprises a rack (301), the rack (301) is fixedly connected to one sides of two groups of notches (202) which are far away from each other, the rack (301) is connected with a gear (302) in a meshed mode, the front side of the gear (302) is fixedly connected to the output end of a servo motor (305), the surface of the output end of the servo motor (305) is further rotationally connected with a speed regulator (303), the front side of the speed regulator (303) is fixedly connected with a sliding plate (304), and the middle of the front side of the sliding plate (304) and the corners of the periphery are fixedly connected with the servo motor (305) and a protective box (306) respectively.
2. The lifting device for a trolley according to claim 1, wherein: the output end of the servo motor (305) sequentially extends to the outsides of the sliding plate (304) and the speed regulator (303) and is rotationally connected with the insides of the sliding plate (304) and the speed regulator (303).
3. The lifting device for a trolley according to claim 1, wherein: the protection mechanism (4) comprises a connecting plate (401), the left end and the right end of the connecting plate (401) are fixedly connected to one side surface of two groups of sliding plates (304) which are close to each other, a first rear side guardrail (402) and a second rear side guardrail (403) are fixedly connected to the front side of the connecting plate (401) at left and right positions respectively, a second bottom plate (414) is fixedly connected to the bottom of the first rear side guardrail (402), a front side guardrail (405) is fixedly connected to the top of the second bottom plate (414) at the front position, the front end of the first rear side guardrail (402) is fixedly connected to the back relative position of the front side guardrail (405) at the left position through a connecting guardrail (404), a sliding door (407) is rotatably connected to the right side back of the front side guardrail (405) through a hinge (406), and the back of the front side guardrail (407) is fixedly connected to the front side of the second rear side guardrail (403) at the right position through a bolt (415).
4. A lifting device for a trolley according to claim 3, wherein: the top fixedly connected with sliding tray (408) of connecting plate (401), the surface sliding connection of sliding tray (408) has sliding door (409), sliding door (409) right side is located intermediate position department sliding connection has second guide bar (411), the other end fixedly connected with fixed block (410) of second guide bar (411), the front side fixedly connected with of fixed block (410) is close to right position department in second rear side guardrail (403) back.
5. The lifting device for a trolley according to claim 4, wherein: the sliding door (409) is rotatably connected with a buckle (412) at the position close to the upper back of the left upright post.
6. The lifting device for a trolley according to claim 4, wherein: a limiting block (413) is fixedly connected to the position, close to the left, of the top end of the sliding groove (408).
7. The lifting device for a trolley according to claim 4, wherein: resistance rods (416) are fixedly connected to four corners of the bottom of the second bottom plate (414), and springs (417) are arranged between the resistance rods (416) and the second bottom plate (414).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322581960.9U CN221070902U (en) | 2023-09-22 | 2023-09-22 | Lifting device for trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322581960.9U CN221070902U (en) | 2023-09-22 | 2023-09-22 | Lifting device for trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221070902U true CN221070902U (en) | 2024-06-04 |
Family
ID=91272864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322581960.9U Active CN221070902U (en) | 2023-09-22 | 2023-09-22 | Lifting device for trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221070902U (en) |
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2023
- 2023-09-22 CN CN202322581960.9U patent/CN221070902U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |