Foldable aerial maintenance platform for trolley

Abstract

The utility model relates to the field of trolley auxiliary facilities, concretely to a foldable high altitude maintenance platform for trolley, including trolley body, trolley body right side rotation setting has the pedal, the pedal right side rotation is connected with a plurality of rotating blocks, and the rotating block one end fixedly connected with the receiving cylinder, and the receiving cylinder inside slides and is connected with the blocking rod. The present application is separated from the positioning rod and the positioning hole, and the restriction to the connecting plate is removed, so that the connecting plate can drive the blocking rod to be stored in the receiving cylinder, and the valve of the gas spring is opened, so that the gas spring output end resets, and through the cooperation of the connecting block, the mounting seat and the connecting seat, the pedal also rotates downward, when the pedal folding is completed, through the screw rod, it is convenient to rotate the baffle, so that the baffle drives the clamping groove to contact with the outer wall of the positioning rod, thereby the position of the connecting plate is limited again, so that the folding of the pedal is carried out, the occupied area is reduced, and the normal work of the trolley body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of trolley auxiliary facilities, specifically a foldable high-altitude maintenance platform for trolleys. Background Technology

[0002] Tunnel lining trolleys are specialized equipment used in the secondary lining process of tunnel construction. They are used for the concrete lining construction of the inner wall of the tunnel. Concrete lining trolleys are indispensable non-standard products in the secondary lining process of tunnel construction. They mainly include simple lining trolleys, fully hydraulic automatic walking lining trolleys, and grid-type lining trolleys. Fully hydraulic lining trolleys can be further divided into side-top arch type, full-circular needle beam type, bottom formwork needle beam type, and full-circular through type. In hydraulic tunnel and bridge construction, lifting slipform, jacking slipform, and flipping formwork are also commonly used. Usually, when maintaining the trolley, a high-altitude maintenance platform is required.

[0003] However, the existing high-altitude maintenance platform for trolleys has the following defects during operation: Before maintenance personnel can repair the trolley, they need to temporarily assemble a maintenance platform on the outside of the web of the main beam of the trolley gantry, between the two pump pipes. If the maintenance platform is directly installed on the trolley, it will affect the normal operation of the trolley due to its large area. Therefore, there is no mechanism to fold and place the maintenance platform, which requires the staff to climb to a height of 3.5m to assemble it, which poses a high risk of falling. In addition, it takes 30 minutes to temporarily set up the steel pipe frame, which affects the cycle time. Utility Model Content

[0004] This utility model aims to provide a foldable high-altitude maintenance platform for trolleys, mainly to solve the technical problems of existing technology lacking a mechanism for folding and placing the maintenance platform, which forces workers to climb to a height of 3.5m for assembly, resulting in a high risk of falling, and the temporary erection of steel pipe frames takes 30 minutes, affecting the cycle time.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A foldable aerial maintenance platform for trolleys includes a trolley body. A pedal is rotatably mounted on the right side of the trolley body. Several rotating blocks are rotatably connected to the right side of the pedal. A storage cylinder is fixedly connected to one end of each rotating block. A baffle rod is slidably connected inside the storage cylinder. Several baffle rods are fixedly connected to the same connecting plate. Positioning rods are slidably mounted at both ends of the connecting plate. A tension spring for moving the positioning rods is provided at the top of the connecting plate. Two rotating plates are rotatably mounted at the top of the pedal. A positioning hole is opened at one end of each rotating plate. Baffles are threaded on both sides of the pedal. A snap-fit ​​groove is opened at one end of each baffle to engage with the outer wall of the positioning rod. Two connecting blocks are rotatably connected to the front of the pedal. A gas spring is installed at one end of each connecting block. The bottom of the gas spring is rotatably mounted on the front of the trolley body.

[0006] The working principle and beneficial effects of this utility model: 1. Working Principle: When the positioning rod separates from the positioning hole, it releases the restriction on the connecting plate, allowing the connecting plate to retract the blocking rod into the storage cylinder and open the valve of the gas spring, causing the gas spring output end to reset. This is achieved through the rotation of the pedal on the right side of the trolley body and the cooperation of the connecting block and the bottom of the gas spring, which are rotatably positioned on the front side of the trolley body. When the gas spring resets, it causes the pedal to rotate downwards as well. After the pedal is folded, the threaded baffles on both sides of the pedal allow for easy adjustment of the baffle angle, causing the baffle to engage with the locking groove and contact the outer wall of the positioning rod, thus restricting the position of the connecting plate again. This folding of the pedal reduces the occupied area and ensures the normal operation of the trolley body.

[0007] 2. Beneficial effects: (1) The tension spring facilitates the insertion of the positioning rod into the positioning hole, thereby supporting the position of the connecting plate and the rotating plate. It can protect the maintenance personnel standing on the pedal. The gas spring can support the position of the pedal, making it convenient for maintenance personnel to stand on the pedal for maintenance work. When the positioning rod separates from the positioning hole, it releases the restriction on the connecting plate, allowing the connecting plate to drive the blocking rod to be stored inside the storage cylinder and open the valve of the gas spring, so that the output end of the gas spring is reset. Through the cooperation of the connecting block, the mounting seat and the connecting seat, the pedal can also rotate downward. After the pedal is folded, the screw facilitates the rotation of the baffle, so that the baffle drives the snap-fit ​​groove to contact the outer wall of the positioning rod, thereby restricting the position of the connecting plate again. By folding the pedal, the occupied area is reduced, ensuring the normal operation of the trolley body.

[0008] Preferably, two connecting seats are fixedly connected to the top front side of the trolley body, and the two ends of the pedal are rotatably connected to one side of the two connecting seats respectively. The top and bottom ends of the pedal are provided with the same manhole. In the initial state, an external ladder can be passed through the manhole and placed on the pedal to facilitate maintenance personnel to climb onto the pedal to carry out maintenance work.

[0009] Preferably, the front side of the pedal has several rotating grooves, and one end of several rotating blocks is rotatably connected to the inside of the rotating grooves; this allows several storage tubes to drive the rotating blocks to rotate inside the rotating grooves, so that the storage tubes can rotate with the rotation of the pedal.

[0010] Preferably, two extension plates are fixedly connected to the top of the connecting plate, and the two positioning rods slide through the two extension plates respectively. A stop block is fixedly connected to one end of the positioning rod, and one end of the tension spring is fixedly connected to one side of the stop block and the other end is fixedly connected to one side of the extension plate. Through the force of the tension spring, the stop block drives the positioning rod to slide on the extension plate, so that one end of the positioning rod is embedded in the positioning hole.

[0011] Preferably, the top of the pedal is fixedly connected to two fixed seats, and one end of each of the two rotating plates is rotatably connected to the two fixed seats. The inner wall of the positioning hole is adapted to the outer wall of the positioning rod. By embedding one end of the positioning rod into the positioning hole, the position of the connecting plate and the rotating plate is supported, which can protect the maintenance personnel standing on the pedal.

[0012] Preferably, screws are fixedly connected to both sides of the pedal, and the bottom of the baffle is threaded to the screws; by rotating the baffle downward clockwise, the baffle causes the locking groove to lock onto the outer wall of the positioning rod, thereby further restricting the position of the connecting plate.

[0013] Preferably, two movable slots are provided on the front side of the pedal, and one end of each of the two connecting blocks is rotatably connected to the two movable slots. Two mounting seats are fixedly connected to the bottom front side of the trolley body, and the bottoms of the two gas springs are rotatably connected to the two mounting seats. When the gas spring output end is reset, the gas spring output end drives the connecting block to rotate downward inside the movable slot, the bottom of the gas spring rotates inside the mounting seat, and the pedal rotates downward between the two connecting seats, so that the pedal slowly folds towards the front side of the trolley body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a foldable high-altitude maintenance platform for a trolley according to the present invention; Figure 2 This is a folding diagram of a foldable high-altitude maintenance platform for a trolley according to the present invention; Figure 3 This is a structural diagram of the pedal of a foldable high-altitude maintenance platform for a trolley according to the present invention; Figure 4 This is a cross-sectional view of the storage tube of a foldable high-altitude maintenance platform for a trolley according to the present invention; Figure 5 This is a structural diagram of the rotating plate of a foldable high-altitude maintenance platform for a trolley according to the present invention.

[0015] The reference numerals in the accompanying drawings of the instruction manual include: 1. Trolley body; 2. Connecting seat; 3. Pedal; 4. Manhole; 5. Rotating groove; 6. Rotating block; 7. Storage cylinder; 8. Barrier rod; 9. Connecting plate; 10. Extension plate; 11. Positioning rod; 12. Stop block; 13. Tension spring; 14. Fixed seat; 15. Rotating plate; 16. Positioning hole; 17. Screw; 18. Baffle; 19. Snap-fit ​​groove; 20. Movable groove; 21. Connecting block; 22. Gas spring; 23. Mounting seat. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 As shown, a foldable high-altitude maintenance platform for trolleys includes a trolley body 1. A pedal 3 is rotatably provided on the right side of the trolley body 1. Two connecting seats 2 are fixedly connected to the top front side of the trolley body 1. The two ends of the pedal 3 are rotatably connected to one side of the two connecting seats 2 respectively. The top and bottom ends of the pedal 3 are provided with the same manhole 4. Several rotating blocks 6 are rotatably connected to the right side of the pedal 3, and several rotating grooves 5 are opened on the front side of the pedal 3. One end of each of the rotating blocks 6 is rotatably connected to the inside of the rotating groove 5. A storage tube 7 is fixedly connected to one end of a rotating block 6. A blocking rod 8 is slidably connected inside the storage tube 7. Several blocking rods 8 are fixedly connected to the same connecting plate 9. Positioning rods 11 are slidably provided at both ends of the connecting plate 9. A tension spring 13 for moving the positioning rods 11 is provided at the top of the connecting plate 9. Two extension plates 10 are fixedly connected to the top of the connecting plate 9. The two positioning rods 11 slide through the two extension plates 10 respectively. A stop block 12 is fixedly connected to one end of the positioning rod 11. One end of the tension spring 13 is fixedly connected to one side of the stop block 12, and the other end is fixedly connected to one side of the extension plate 10. Two rotating plates 15 are rotatably mounted on the top of the pedal 3. One end of each rotating plate 15 has a positioning hole 16. Two fixed seats 14 are fixedly connected to the top of the pedal 3. One end of each rotating plate 15 is rotatably connected to the two fixed seats 14. The inner wall of the positioning hole 16 is adapted to the outer wall of the positioning rod 11. After the maintenance work is completed, the maintenance personnel leave the pedal 3 through the manhole 4. At this time, the stop block 12 is pulled to the outside of the connecting plate 9, so that the stop block 12 drives the tension spring 13 to stretch. At the same time, the stop block 12 drives the positioning rod 11 to separate from the positioning hole 16, thereby releasing the restriction on the rotating plate 15. This allows one end of the rotating plate 15 to rotate in the fixed seat 14, so that the rotating plate 15 rotates to the surface of the pedal 3. Due to the weight of the connecting plate 9 itself, the connecting plate 9 drives several blocking rods 8 to return to the inside of several storage cylinders 7 respectively. Baffles 18 are threaded on both sides of the pedal 3. Screws 17 are fixedly connected to both sides of the pedal 3. The bottom of the baffles 18 is threaded to the screws 17. A snap-fit ​​groove 19 is provided at one end of the baffles 18 to snap into the outer wall of the positioning rod 11. Two connecting blocks 21 are rotatably connected to the front of the pedal 3. A gas spring 22 is installed at one end of the connecting block 21. The bottom of the gas spring 22 is rotatably set at the front of the trolley body 1. Two movable slots 20 are opened on the front of the pedal 3. One end of the two connecting blocks 21 is rotatably connected to the two movable slots 20 respectively. In the initial state, the pedal 3 is supported by the gas spring 22 through the connecting blocks 21. Then, an external ladder can be passed through the manhole 4 and placed on the pedal 3 to facilitate maintenance personnel to climb onto the pedal 3 for maintenance work. Through the force of the tension spring 13, the stop block 12 drives the positioning rod 11 to slide on the extension plate 10, so that one end of the positioning rod 11 is embedded in the positioning hole 16, thereby supporting the position of the connecting plate 9 and the rotating plate 15, and protecting the maintenance personnel standing on the pedal 3. Two mounting seats 23 are fixedly connected to the bottom front side of the trolley body 1. The bottom of two gas springs 22 are rotatably connected to the two mounting seats 23 respectively. When the valve on the gas spring 22 is opened, the output end of the gas spring 22 is reset. At this time, the output end of the gas spring 22 drives the connecting block 21 to rotate downward inside the movable groove 20. The bottom of the gas spring 22 rotates inside the mounting seat 23, while the pedal 3 rotates downward between the two connecting seats 2, so that the pedal 3 slowly folds towards the front of the trolley body 1. By rotating the baffle 18 downward clockwise, the baffle 18 drives the locking groove 19 to lock onto the outer wall of the positioning rod 11, thereby restricting the position of the connecting plate 9 again. This completes the folding of the pedal 3, reduces the occupied area, and ensures the normal operation of the trolley body 1.

[0018] As can be seen from the above, the specific implementation of this utility model is as follows: In the initial state, the gas spring 22 supports the pedal 3 through the connecting block 21. Then, an external ladder can be placed on the pedal 3 through the manhole 4, making it convenient for maintenance personnel to climb onto the pedal 3 for maintenance work. Through the force of the tension spring 13, the stop block 12 drives the positioning rod 11 to slide on the extension plate 10, so that one end of the positioning rod 11 is embedded in the positioning hole 16, thereby supporting the position of the connecting plate 9 and the rotating plate 15, and protecting the maintenance personnel standing on the pedal 3. After the maintenance work is completed, the maintenance personnel leave the pedal 3 through the manhole 4. At this time, they pull the stop block 12 outwards on the connecting plate 9, causing the stop block 12 to stretch the tension spring 13. Simultaneously, the stop block 12 causes the positioning rod 11 to separate from the positioning hole 16, thereby releasing the restriction on the rotating plate 15. This allows one end of the rotating plate 15 to rotate within the fixed seat 14, causing the rotating plate 15 to rotate onto the surface of the pedal 3. Due to the weight of the connecting plate 9 itself, the connecting plate 9 causes several blocking rods 8 to return to their respective positions inside the storage cylinders 7. Then, the valve on the gas spring 22 is opened, allowing... When the output end of the gas spring 22 is reset, the output end of the gas spring 22 drives the connecting block 21 to rotate downward inside the movable slot 20. The bottom of the gas spring 22 rotates inside the mounting seat 23, while the pedal 3 rotates downward between the two connecting seats 2, causing the pedal 3 to slowly fold towards the front of the trolley body 1. By rotating the baffle 18 downward clockwise, the baffle 18 drives the locking groove 19 to lock onto the outer wall of the positioning rod 11, thereby restricting the position of the connecting plate 9 again. This completes the folding of the pedal 3, reduces the occupied area, and ensures the normal operation of the trolley body 1.

[0019] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A foldable aerial maintenance platform for trolleys, characterized in that, The trolley body (1) is rotatably mounted on the right side of the trolley body (1). Several rotating blocks (6) are rotatably connected to the right side of the pedal (3). A storage cylinder (7) is fixedly connected to one end of each rotating block (6). A barrier rod (8) is slidably connected inside the storage cylinder (7). Several barrier rods (8) are fixedly connected to the same connecting plate (9). Positioning rods (11) are slidably mounted at both ends of the connecting plate (9). A tension spring for moving the positioning rods (11) is mounted at the top of the connecting plate (9). 13) Two rotating plates (15) are rotatably set at the top of the pedal (3). A positioning hole (16) is opened at one end of the rotating plate (15). Baffles (18) are threaded on both sides of the pedal (3). A snap-fit ​​groove (19) is opened at one end of the baffle (18) to engage with the outer wall of the positioning rod (11). Two connecting blocks (21) are rotatably connected to the front side of the pedal (3). A gas spring (22) is installed at one end of the connecting block (21). The bottom of the gas spring (22) is rotatably set at the front side of the trolley body (1).

2. The foldable aerial maintenance platform for trolleys according to claim 1, characterized in that: The trolley body (1) has two connecting seats (2) fixedly connected to the top front side. The two ends of the pedal (3) are respectively rotatably connected to one side of the two connecting seats (2). The top and bottom ends of the pedal (3) are provided with the same manhole (4).

3. The foldable aerial maintenance platform for trolleys according to claim 1, characterized in that: The pedal (3) has several rotating grooves (5) on its front side, and one end of several rotating blocks (6) is rotatably connected to the inside of the rotating grooves (5).

4. The foldable aerial maintenance platform for trolleys according to claim 1, characterized in that: The top of the connecting plate (9) is fixedly connected to two extension plates (10), and the two positioning rods (11) slide through the two extension plates (10) respectively. One end of the positioning rod (11) is fixedly connected to a stop block (12), and one end of the tension spring (13) is fixedly connected to one side of the stop block (12), and the other end is fixedly connected to one side of the extension plate (10).

5. The foldable aerial maintenance platform for trolleys according to claim 1, characterized in that: The top of the pedal (3) is fixedly connected to two fixed seats (14), and one end of the two rotating plates (15) is rotatably connected to the two fixed seats (14). The inner wall of the positioning hole (16) is adapted to the outer wall of the positioning rod (11).

6. The foldable aerial maintenance platform for trolleys according to claim 1, characterized in that: Both sides of the pedal (3) are fixedly connected with screws (17), and the bottom of the baffle (18) is threadedly connected to the screws (17).

7. A foldable aerial maintenance platform for trolleys according to claim 1, characterized in that: The pedal (3) has two movable slots (20) on its front side. One end of each of the two connecting blocks (21) is rotatably connected to the two movable slots (20). The bottom of the front side of the trolley body (1) is fixedly connected to two mounting seats (23). The bottom of each of the two gas springs (22) is rotatably connected to the two mounting seats (23).

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