Synchronous lifting pneumatic stilt

Abstract

The synchronous lifting pneumatic stilt comprises a driving assembly, a left stilt assembly and a right stilt assembly, the left stilt assembly and the right stilt assembly are symmetrically arranged, each of the left stilt assembly and the right stilt assembly comprises a fixing frame, a lifting table assembly and a cylinder body, the lifting table assemblies are installed on the cylinder bodies, the fixing frames are provided with inner rods, the inner rods are sleeved with the cylinder bodies, and the cylinder bodies can slide relative to the inner rods. The driving assembly comprises a first air valve, an air inlet pipe and a first air pipe, the first air valve is installed outside the cylinder body, the air inlet pipe is connected with the first air valve, one end of the first air pipe is connected with the first air valve, and the middle of the first air pipe is connected with the cylinder body of the right stilt assembly. The other end of the first air pipe is connected with the cylinder body of the left stilt assembly. By means of air inlet of the air inlet pipe and opening of the first air valve, the two cylinder bodies are inflated, and the lifting table assemblies on the two sides are driven to ascend. The synchronous lifting pneumatic stilt can be synchronously adjusted and has the advantages of being simple in structure and safe.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting stilts, in particular to a pneumatic stilt with synchronous lifting. Background Art

[0002] Stilts can be applied to indoor decoration, outdoor construction, orchard picking, etc.

[0003] At present, flexible stilts with adjustable lengths have emerged on the market. For example, the stilts disclosed in the Chinese patent with the application number 201910902330. The adjustment method is as follows: after wearing, if the user needs to increase the height, first use one telescopic rod as a fulcrum, and lift the switch bolt on the relatively opposite telescopic rod to increase the height. Then, use the lifted end as a fulcrum and lift the switch bolt on the non-lifted telescopic rod to make the two telescopic rods parallel. Repeat this process multiple times to complete the stretching of the telescopic rods. In other words, the existing stilts are adjusted individually and require repeated adjustments. However, when a person stands on them, they need to be adjusted repeatedly, with both hands and feet in a chaotic state, which is very dangerous. Therefore, the existing stilts cannot meet the requirements.

[0004] Therefore, there is an urgent need for a pneumatic stilt with synchronous lifting to solve the above problems. Summary of the Utility Model

[0005] The technical problem solved by the utility model is to provide a pneumatic stilt with synchronous lifting that can be synchronously adjusted, has a simple structure, and is safe.

[0006] To solve the above technical problem, the pneumatic stilt with synchronous lifting provided by the utility model includes a driving component, a left stilt component and a right stilt component that are symmetrically arranged. The left stilt component and the right stilt component each include a fixed frame, a lifting table component and a cylinder body. The lifting table component is installed on the cylinder body. The fixed frame has an inner rod. The cylinder body is sleeved outside the inner rod and can slide relative to the inner rod. The lifting of the lifting table component is driven by the relative sliding between the cylinder body and the inner rod. The driving component includes a first air valve, an air inlet pipe and a first air pipe. The first air valve is installed outside the cylinder body. The air inlet pipe is connected to the first air valve. One end of the first air pipe is connected to the first air valve. The middle part of the first air pipe is connected to the cylinder body of the right stilt component. The other end of the first air pipe is connected to the cylinder body of the left stilt component. By the intake of the air inlet pipe and the opening of the first air valve, the two cylinder bodies are inflated and drive the lifting table components on both sides to rise.

[0007] Preferably, the pneumatic stilt with synchronous lifting further includes a protection component for locking the relative position between the inner rod and the cylinder body.

[0008] Specifically, the protection component includes a pneumatic press head, a card matching rod, a second air valve, and a second air pipe. The second air valve is installed outside the cylinder body. The air inlet pipe is connected to the second air valve. One end of the second air pipe is connected to the second air valve, and the other end of the second air pipe is connected to the pneumatic press head. The card matching rod is located on one side of the inner rod. The card matching rod is arranged with engaging teeth along its length direction. The pneumatic press head has an engaging block that cooperates with the engaging teeth. By the intake of the air inlet pipe and the opening of the second air valve, the gas in the second air pipe pushes against the engaging block of the pneumatic press head to move in a direction away from the card matching rod and keeps the engaging teeth and the engaging block in a state of releasing the card.

[0009] Preferably, the lifting table component includes an upper connecting piece, a leg fixing piece, a lower connecting piece, and a foot fixing piece. The leg fixing piece is connected to the cylinder body through the upper connecting piece, and the foot fixing piece is connected to the cylinder body through the lower connecting piece.

[0010] Specifically, the bottom of the lower connecting piece is provided with landing feet for bearing. When the lower connecting piece is at the lowest position relative to the inner rod, the landing feet can bear on the ground.

[0011] Specifically, the lower connecting piece is provided with the landing feet on both the front side and the rear side corresponding to the foot fixing piece.

[0012] Preferably, the fixing frame further includes a bearing base, a first elastic member, and a second elastic member. The inner rod is pivotally connected to the bearing base. One end of the first elastic member is pivotally connected to one side of the inner rod, and the other end of the first elastic member is pivotally connected to one side of the bearing base. One end of the second elastic member is pivotally connected to the other side of the inner rod, and the other end of the second elastic member is pivotally connected to the other side of the bearing base.

[0013] Specifically, a pivot seat is provided at the bottom of the inner rod. The first elastic member, the second elastic member, and the bearing base are all connected to the inner rod through the pivot seat.

[0014] Preferably, a first flow regulator for adjusting the gas flow rate is provided on the first air valve.

[0015] Specifically, a second flow regulator for adjusting the gas flow rate is provided on the second air valve.

[0016] Compared with the prior art, the synchronous lifting pneumatic stilts of the utility model are combined by a driving component, a left stilt component and a right stilt component, the left stilt component and the right stilt component each include a fixed frame, a lifting platform component and a cylinder body, the lifting platform component is installed on the cylinder body, the fixed frame has an inner rod, the cylinder body is outer-mounted on the inner rod and can slide relative to the inner rod, the lifting platform component is lifted and lowered by the relative sliding between the cylinder body and the inner rod, the driving component includes a first air valve, an air intake pipe and a first air pipe, the first air valve is installed outside the cylinder body, the air intake pipe is connected to the first air valve, one end of the first air pipe is connected to the first air valve, the middle part of the first air pipe is connected to the cylinder body of the right stilt component, and the first air valve is installed outside the cylinder body. The other end of the tube is connected to the cylinder body of the left stilt assembly, and the air intake of the intake pipe and the opening of the first air valve allow the two cylinders to be inflated and drive the lifting platform assemblies on both sides to rise. In other words, since the intake pipe controls the inflation of the cylinder bodies of the left and right stilt assemblies at the same time, the air intake of the intake pipe and the turning of the first air valve can achieve synchronous rising of the two sides, and the height can be fixed by closing the first air valve. When it is necessary to descend, the descent can be achieved by simply opening the first air valve again to deflate. Not only is the structure simple and the cost low, but it also avoids the defect that the left and right sides of traditional stilts need to be adjusted repeatedly, thereby improving the convenience and safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of the synchronous lifting pneumatic stilts provided by the utility model;

[0018] Figure 2 Another three-dimensional structural schematic diagram of the synchronous lifting pneumatic stilts provided by the utility model;

[0019] Figure 3 A front view of the synchronous lifting pneumatic stilts provided by the utility model;

[0020] Figure 4 A side view of the synchronous lifting pneumatic stilts provided by the utility model;

[0021] Figure 5 for Figure 4 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figures 1 to 4, the pneumatic stilts 100 with synchronous lifting of the present utility model includes a driving assembly 1, a left stilt assembly 2 and a right stilt assembly 3. The left stilt assembly 2 and the right stilt assembly 3 are symmetrically arranged. The left stilt assembly 2 and the right stilt assembly 3 each include a fixing frame 4, a lifting platform assembly 5 and a cylinder body 6. The lifting platform assembly 5 is installed on the cylinder body 6. The lifting of the cylinder body 6 can drive the lifting of the lifting platform assembly 5. The fixing frame 4 has an inner rod 41. The cylinder body 6 is sleeved on the inner rod 41 and can slide up and down relative to the inner rod 41. The cylinder body 6 has a cavity structure inside. The cylinder body 6 and the inner rod 41 together form a telescopic cylinder structure. By the relative sliding between the cylinder body 6 and the inner rod 41, the lifting platform assembly 5 is linked to lift. The driving assembly 1 includes a first air valve 11, an air inlet pipe 12 and a first air pipe 13. The first air valve 11 is installed outside the cylinder body 6. The air inlet pipe 12 is connected to the first air valve 11. One end of the first air pipe 13 is connected to the first air valve 11. The middle part of the first air pipe 13 is connected to the cylinder body 6 of the right stilt assembly 3. The other end of the first air pipe 13 is connected to the cylinder body 6 of the left stilt assembly 2. By the air intake of the air inlet pipe 12 and the opening of the first air valve 11, the two cylinder bodies 6 are inflated and drive the lifting platform assemblies 5 on both sides to rise. In other words, since the air inlet pipe 12 controls the inflation in the cylinder bodies 6 of both the left stilt assembly 2 and the right stilt assembly 3 at the same time, the air intake of the air inlet pipe 12 and the operation of the first air valve 11 can achieve the synchronous rise on both sides. Closing the first air valve 11 can fix its height. When it is necessary to descend, as long as the first air valve 11 is opened again for deflation, the descent can be achieved. It not only has a simple structure and low cost, but also avoids the defect that the left and right sides of the traditional stilts need to be adjusted repeatedly for many times, improving the convenience and safety of use. More specifically, as follows:

[0024] Please refer to Figures 2 to 5 , the pneumatic stilts 100 with synchronous lifting of the present utility model further includes a protection assembly 7 for locking the relative position between the inner rod 41 and the cylinder body 6. For example, the protection assembly 7 includes a pneumatic pressing head 71, a matching clamping rod 72, a second air valve 73 and a second air pipe 74. The second air valve 73 is installed outside the cylinder body 6. The air inlet pipe 12 is connected to the second air valve 73. One end of the second air pipe 74 is connected to the second air valve 73. The other end of the second air pipe 74 is connected to the pneumatic pressing head 71. The matching clamping rod 72 is located on one side of the inner rod 41. The matching clamping rod 72 is arranged with clamping teeth 721 along its length direction. The pneumatic pressing head 71 has a clamping block 711 that cooperates with the clamping teeth 721. By the air intake of the air inlet pipe 12 and the opening of the second air valve 73, the gas in the second air pipe 74 presses against the clamping block 711 of the pneumatic pressing head 71 to move in a direction away from the matching clamping rod 72 and makes the clamping teeth 721 and the clamping block 711 remain in a released clamping state. By the clamping block 711 of the pneumatic pressing head 71 moving in a direction close to the matching clamping rod 72, the clamping teeth 721 and the clamping block 711 are kept in a clamped state.

[0025] Please refer to Figures 1 to 5, the lifting table assembly 5 includes an upper connecting member 51, a leg fixing member 52, a lower connecting member 53 and a foot fixing member 54. The leg fixing member 52 is connected to the cylinder block 6 through the upper connecting member 51, and the foot fixing member 54 is connected to the cylinder block 6 through the lower connecting member 53. Specifically, a landing foot 531 for bearing is provided at the bottom of the lower connecting member 53. When the lower connecting member 53 is at the lowest position relative to the inner rod 41, the landing foot 531 can bear on the ground, making it not easy for people to fall when landing, and the stability of the user when landing is higher. Preferably, landing feet 531 are provided on both the front side and the rear side of the lower connecting member 53 corresponding to the foot fixing member 54, so as to improve the connection stability.

[0026] Please refer to Figures 1 to 5 , the fixing frame 4 further includes a bearing base 42, a first elastic member 43 and a second elastic member 44. The inner rod 41 is pivotally connected to the bearing base 42. One end of the first elastic member 43 is pivotally connected to one side of the inner rod 41, and the other end of the first elastic member 43 is pivotally connected to one side of the bearing base 42. One end of the second elastic member 44 is pivotally connected to the other side of the inner rod 41, and the other end of the second elastic member 44 is pivotally connected to the other side of the bearing base 42. Due to the buffering of the elastic members, the forward and backward movements are more stable. Specifically, a pivot seat 411 is provided at the bottom of the inner rod 41, and the first elastic member 43, the second elastic member 44 and the bearing base 42 are all connected to the inner rod 41 through the pivot seat 411.

[0027] Please refer to Figures 1 to 5 , a first flow regulator 8 for adjusting the gas flow is provided on the first air valve 11. The user can adjust the lifting rate according to needs. A second flow regulator 9 for adjusting the gas flow is provided on the second air valve 73. The user can adjust the air inlet and outlet rate of the second air valve 73 according to actual needs. Of course, the producer can delete the first flow regulator 8 or the second flow regulator 9 according to actual needs.

[0028] Please refer to Figures 1 to 5 , the working process of the synchronous lifting pneumatic stilts 100 of the present utility model is as follows:

[0029] 1. After the external air compressor is started, the free end of the air inlet pipe 12 is inserted into the air outlet of the air compressor. A person stands on the lower connecting member 53 and fixes the body through the foot fixing member 54 and the leg fixing member 52.

[0030] 2. Ascending operation: Toggle the switch of the first air valve 11, high-pressure air enters the cylinder block 6, the inner rod 41 extends relative to the cylinder block 6, and the leg fixing member 52 and the foot fixing member 54 start to rise. Meanwhile, when the intake pipe 12 intakes air, the air in the intake pipe 12 and the opening of the second air valve 73 cause the gas in the second air pipe 74 to push against the engaging block 711 of the pneumatic press head 71 to move in a direction away from the mating card rod 72 and keep the engaging teeth 721 and the engaging block 711 in a disengaged state. The second air valve 73 is a one-way valve, and the self-locking small cylinder block 6 formed at the pneumatic press head 71 automatically closes after being filled with air.

[0031] 3. When reaching the desired height, toggle the switch of the first air valve 11 to close the air intake of the cylinder block 6. Toggle the second air valve 73. After exhausting the air from the self-locking small cylinder block 6, the engaging block 711 of the pneumatic press head 71 moves in a direction close to the mating card rod 72 and keeps the engaging teeth 721 and the engaging block 711 in an engaged state, thus achieving locking.

[0032] 4. Descending operation: Toggle the switch of the first air valve 11, the gas in the cylinder block 6 is discharged through the first air valve 11, and the stilts start to descend. After descending to the desired height, close the first air valve 11 and stop exhausting air, and the stilts stop at the current height.

[0033] 5. When the ascending or descending speed is too fast, adjust the current-limiting knob of the first flow regulator 8 to adjust the speed to an appropriate value.

[0034] By combining the driving component 1, the left stilt component 2 and the right stilt component 3 together, the left stilt component 2 and the right stilt component 3 each include a fixing frame 4, a lifting platform component 5 and a cylinder body 6, the lifting platform component 5 is installed on the cylinder body 6, the fixing frame 4 has an inner rod 41, the cylinder body 6 is outer-mounted on the inner rod 41 and can slide relative to the inner rod 41, and the lifting platform component 5 is lifted and lowered by the relative sliding between the cylinder body 6 and the inner rod 41, the driving component 1 includes a first air valve 11, an air intake pipe 12 and a first air pipe 13, the first air valve 11 is installed outside the cylinder body 6, the air intake pipe 12 is connected to the first air valve 11, one end of the first air pipe 13 is connected to the first air valve 11, the middle part of the first air pipe 13 is connected to the cylinder body 6 of the right stilt component 3, and the first The other end of the air pipe 13 is connected to the cylinder body 6 of the left stilt assembly 2, and the air intake of the air intake pipe 12 and the opening of the first air valve 11 make the two cylinder bodies 6 inflated and drive the lifting platform assemblies 5 on both sides to rise. In other words, since the air intake pipe 12 controls the cylinder body 6 of the left stilt assembly 2 and the cylinder body 6 of the right stilt assembly 3 at the same time, the air intake of the air intake pipe 12 and the turning of the first air valve 11 can realize the synchronous rise of the two sides, and the height can be fixed by closing the first air valve 11. When it is necessary to descend, the descent can be achieved by simply opening the first air valve 11 again to deflate. Not only is the structure simple and the cost low, but it also avoids the defect that the left and right sides of traditional stilts need to be adjusted repeatedly, thereby improving the convenience and safety of use.

[0035] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pneumatic stilts for synchronous lifting, characterized in that, It includes a driving component, a left stilt component and a right stilt component which are symmetrically arranged. Each of the left stilt component and the right stilt component includes a fixing frame, a lifting table component and a cylinder body. The lifting table component is installed on the cylinder body. The fixing frame has an inner rod, and the cylinder body is sleeved outside the inner rod and can slide relative to the inner rod. The relative sliding between the cylinder body and the inner rod drives the lifting of the lifting table component. The driving component includes a first air valve, an air inlet pipe and a first air pipe. The first air valve is installed outside the cylinder body. The air inlet pipe is connected to the first air valve. One end of the first air pipe is connected to the first air valve, the middle part of the first air pipe is connected to the cylinder body of the right stilt component, and the other end of the first air pipe is connected to the cylinder body of the left stilt component. By the intake of the air inlet pipe and the opening of the first air valve, the two cylinder bodies are inflated and drive the lifting table components on both sides to rise.

2. The synchronized lifting pneumatic stilts according to claim 1, characterized in that, It further includes a protection component for locking the relative position between the inner rod and the cylinder body.

3. The synchronous lifting pneumatic stilts according to claim 2, characterized in that, The protection component includes a pneumatic pressing head, a matching clamping rod, a second air valve and a second air pipe. The second air valve is installed outside the cylinder body. The air inlet pipe is connected to the second air valve. One end of the second air pipe is connected to the second air valve, and the other end of the second air pipe is connected to the pneumatic pressing head. The matching clamping rod is located on one side of the inner rod, and engaging teeth are arranged along the length direction of the matching clamping rod. The pneumatic pressing head has an engaging block that cooperates with the engaging teeth. By the intake of the air inlet pipe and the opening of the second air valve, the gas in the second air pipe pushes the engaging block of the pneumatic pressing head to move away from the matching clamping rod and keeps the engaging teeth and the engaging block in a state of releasing the clamp.

4. The synchronous lifting pneumatic stilts according to claim 1, characterized in that, The lifting table component includes an upper connecting piece, a leg fixing piece, a lower connecting piece and a foot fixing piece. The leg fixing piece is connected to the cylinder body through the upper connecting piece, and the foot fixing piece is connected to the cylinder body through the lower connecting piece.

5. The synchronized lifting pneumatic stilts according to claim 4, characterized in that, The bottom of the lower connecting piece is provided with a landing foot for bearing. When the lower connecting piece is in the lowest position relative to the inner rod, the landing foot can bear on the ground.

6. The synchronous lifting pneumatic stilts according to claim 5, characterized in that, The lower connecting piece is provided with the landing feet on both the front side and the rear side corresponding to the foot fixing piece.

7. The synchronous lifting pneumatic stilts according to claim 1, characterized in that, The fixing frame further includes a bearing base, a first elastic member and a second elastic member. The inner rod is pivotally connected to the bearing base. One end of the first elastic member is pivotally connected to one side of the inner rod, and the other end of the first elastic member is pivotally connected to one side of the bearing base. One end of the second elastic member is pivotally connected to the other side of the inner rod, and the other end of the second elastic member is pivotally connected to the other side of the bearing base.

8. The synchronized lifting pneumatic stilts according to claim 7, characterized in that, A pivot seat is provided at the bottom of the inner rod. The first elastic member, the second elastic member and the bearing base are all connected to the inner rod through the pivot seat.

9. The synchronous lifting pneumatic stilts according to claim 1, characterized in that A first flow regulator for adjusting the gas flow is provided on the first air valve.

10. The synchronous lifting pneumatic stilts according to claim 3, characterized in that, A second flow regulator for adjusting the gas flow is provided on the second air valve.

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