Synchronous lifting pneumatic stilt

Abstract

The synchronous lifting pneumatic stilts comprise a pneumatic driving assembly, a left stilts assembly and a right stilts assembly, the left stilts assembly and the right stilts assembly are symmetrically arranged, each of the left stilts assembly and the right stilts 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, and the inner rods are provided with outer rods. The inner rod is sleeved with the cylinder body, and the pneumatic driving assembly is arranged outside one of the cylinder bodies of the left stilt assembly and the right stilt assembly; the lifting table assembly is located on the side, close to the other cylinder body, of the cylinder body corresponding to the lifting table assembly. The fixing frame is provided with a connecting table and a bearing table, the connecting table is located on one side of the bearing table, and the lower end of the inner rod is connected to the connecting table; the bearing table is located on the side, close to the other cylinder body, of the cylinder body corresponding to the bearing table and located under the lifting table assembly corresponding to the bearing table. The synchronous lifting pneumatic stilt can be synchronously adjusted, and is simple in structure and comfortable and safe to use.

Description

Technical Field

[0001] This utility model relates to the field of lifting stilts technology, and in particular to a synchronous lifting pneumatic stilt. Background Technology

[0002] Stilts can be used for interior decoration, outdoor construction, orchard harvesting, etc.

[0003] Currently, adjustable-length flexible stilts are available on the market. Existing stilt technology involves individual adjustment, requiring multiple adjustments: one leg is used for support to adjust the other, then the other leg is used for support to adjust the first leg. This repeated adjustment puts the user in a state of constant activity, which is extremely dangerous. Furthermore, because the user stands between the left and right stilts, the existing foot support platform is located inside the stilt support rod. The support point between the rod and the ground is offset from the platform's stress point. Therefore, when a person stands on the platform, the stilt experiences an imbalance between gravity and ground support, creating a torque that causes the upper part of the stilt to press against the body. This is extremely uncomfortable and unsafe, and therefore, existing stilt technology fails to meet the requirements.

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

[0005] The technical problem solved by this utility model is to provide a synchronously adjustable, simple, and force-balanced pneumatic stilt that is comfortable and safe to use.

[0006] To solve the above-mentioned technical problems, the present invention provides a synchronous lifting pneumatic stilt assembly comprising a pneumatic drive assembly and a symmetrically arranged left and right stilt assembly. Each of the left and right stilt assemblies includes a fixed frame, a lifting platform assembly, and a cylinder. The lifting platform assembly is mounted on the cylinder. The fixed frame has an inner rod, and the cylinder is sleeved on the inner rod and can slide relative to it. The pneumatic drive assembly is disposed outside one of the cylinders in the left and right stilt assemblies and drives each cylinder to slide relative to the inner rod, thereby raising and lowering the lifting platform assembly. The lifting platform assembly is located on the side of its corresponding cylinder closer to the other cylinder. The fixed frame has a connecting platform and a support platform. The connecting platform is located on one side of the support platform, and the lower end of the inner rod is connected to the connecting platform. The support platform is located on the side of its corresponding cylinder closer to the other cylinder and is directly below its corresponding lifting platform assembly.

[0007] Preferably, the pneumatic drive assembly 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 assembly, and the other end of the first air pipe is connected to the cylinder body of the left stilt assembly. By the air intake pipe and the opening of the first air valve, air is filled into the two cylinder bodies, which drives the lifting platform assemblies on both sides to rise.

[0008] Preferably, the synchronous lifting pneumatic stilts also include a protective component for locking the relative position between the inner rod and the cylinder.

[0009] Specifically, the protection component includes a pneumatic pressure head, a locking lever, a second air valve, and a second air pipe. The second air valve is installed outside the cylinder body. The air intake 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 pressure head. The lower end of the locking lever is connected to the connecting platform. The locking lever has locking teeth arranged along its length. The pneumatic pressure head has locking blocks that cooperate with the locking teeth. By the air intake of the air intake pipe and the opening of the second air valve, the gas in the second air pipe pushes against the locking block of the pneumatic pressure head and moves away from the locking lever, so that the locking teeth and the locking block remain in a disengaged state.

[0010] Specifically, the mounting rod and the inner rod are coaxial and integrally formed. This simplifies the structure.

[0011] Preferably, the lifting platform assembly includes a lower connector and a foot fixing member, the foot fixing member being connected to the cylinder body via the lower connector; the foot fixing member is located on the side of the corresponding cylinder body near the other cylinder body, and is located directly above the corresponding support platform.

[0012] Specifically, the lifting platform assembly also includes an upper connector and a leg fixing member. The leg fixing member is connected to the cylinder body through the upper connector. The leg fixing member is located on the side of the cylinder body corresponding to it that is close to the other cylinder body, and is located directly above the foot fixing member corresponding to it.

[0013] Preferably, the fixing frame further includes a support base and a first elastic member, the support platform is pivotally connected to the support base, one end of the first elastic member is pivotally connected to one side of the support platform, and the other end of the first elastic member is pivotally connected to one side of the support base.

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

[0015] Specifically, the second gas valve is equipped with a second flow regulator for adjusting the gas flow rate.

[0016] Compared with the prior art, the synchronous lifting pneumatic stilts of this utility model combine a pneumatic drive assembly, a left stilt assembly, and a right stilt assembly. Each of the left and right stilt assemblies includes a fixed frame, a lifting platform assembly, and a cylinder. The lifting platform assembly is installed on the cylinder. The fixed frame has an inner rod, and the cylinder is sleeved on the inner rod and can slide relative to the inner rod. By using the pneumatic drive assembly to simultaneously drive the cylinder and the inner rod to slide relative to each other, the two lifting platform assemblies can be driven to rise and fall at the same time, so as to achieve the purpose of synchronously adjusting the height of both sides. It is not only simple in structure and low in cost, but also avoids the defect of traditional stilts that require repeated adjustments on both sides, thus improving the convenience of use. Furthermore, by placing the lifting platform assembly on the side of its corresponding cylinder close to the other cylinder, and placing the support platform on the side of its corresponding cylinder close to the other cylinder, and directly below the corresponding lifting platform assembly, the weight of the human body on the lifting platform assembly and the supporting force on the support platform can be aligned in a straight line, thus preventing the generation of torque. This ensures that the left and right stilt assemblies are balanced in terms of force, preventing the upper part of the stilts from pressing against the body, and improving the comfort and safety of use. Attached Figure Description

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

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

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

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

[0021] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0022] Figure 6 This is a structural diagram of another embodiment of the synchronous lifting pneumatic stilts provided by this utility model. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figures 1 to 4The present invention relates to a synchronous lifting pneumatic stilt 100, comprising a pneumatic drive assembly 1, a left stilt assembly 2, and a right stilt assembly 3. The left and right stilt assemblies 2 and 3 are symmetrically arranged. Each assembly includes a fixed frame 4, a lifting platform assembly 5, and a cylinder 6. The lifting platform assembly 5 is mounted on the cylinder 6, and the lifting of the cylinder 6 drives the lifting of the lifting platform assembly 5. The fixed frame 4 has an inner rod 41, and the cylinder 6 is sleeved on the inner rod 41 and can slide up and down relative to the inner rod 41. The cylinder 6 has a cavity structure, and the cylinder 6 and the inner rod 41 together form a telescopic cylinder structure. The lifting platform assembly 5 is lifted and lowered by the relative sliding between the cylinder 6 and the inner rod 41. The pneumatic drive 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 mounted outside the cylinder 6, and the air inlet pipe 12 is connected to the first air valve 11. One end of the air pipe 13 is connected to the first air valve 11, the middle of the first air pipe 13 is connected to the cylinder 6 of the right stilt assembly 3, and the other end of the first air pipe 13 is connected to the cylinder 6 of the left stilt assembly 2. Air intake through the air intake pipe 12 and the opening of the first air valve 11 inflate both cylinders 6, causing the lifting platform assemblies 5 on both sides to rise. In other words, since the air intake pipe 12 simultaneously controls the inflation of the cylinders 6 of both the left stilt assembly 2 and the right stilt assembly 3, the simultaneous rising of both sides can be achieved by the air intake pipe 12 and the operation of the first air valve 11. Closing the first air valve 11 fixes the height. When descent is required, simply opening the first air valve 11 again to release air will achieve descent. This design is not only simple and low-cost, but also avoids the drawbacks of traditional stilts requiring repeated adjustments on both sides, improving ease of use and safety. More specifically, as follows:

[0025] Please refer to the following: Figures 2 to 5 The synchronous lifting pneumatic stilt 100 of this utility model also includes a protective component 7 for locking the relative position between the inner rod 41 and the cylinder 6. For example, the protective component 7 includes a pneumatic pressure head 71, a locking rod 72, a second air valve 73, and a second air pipe 74. The second air valve 73 is installed outside the cylinder 6, and 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, and the other end of the second air pipe 74 is connected to the pneumatic pressure head 71. The locking rod 72 is located on one side of the inner rod 41, and its lower end is connected to the connecting platform 4a of the fixing frame 4. The locking rod 72 has engaging teeth 721 arranged along its length. The pneumatic pressure head 71 is located on... The cylinder 6 or the lifting platform assembly 5 has a locking block 711 that engages with the locking teeth 721. By the intake of air through the intake pipe 12 and the opening of the second air valve 73, the gas in the second air pipe 74 pushes against the locking block 711 of the pneumatic head 71 and moves it away from the locking rod 72, so that the locking teeth 721 and the locking block 711 remain in a disengaged state. By the movement of the locking block 711 of the pneumatic head 71 towards the locking rod 72, the locking teeth 721 and the locking block 711 remain in an engaged state.

[0026] In another preferred embodiment, such as Figure 6 As shown, the carding rod and the inner rod 41' are coaxial and integrally formed, that is, the engaging teeth 721' of the carding rod are set on the inner rod 41', which can achieve the same technical effect and make the structure simpler.

[0027] Please refer to the following: Figures 1 to 5 The lifting platform assembly 5 includes an upper connector 51, a leg fixing member 52, a lower connector 53, and a foot fixing member 54. The leg fixing member 52 is connected to the cylinder 6 via the upper connector 51, and the foot fixing member 54 is connected to the cylinder 6 via the lower connector 53. The upper connector 51 and the leg fixing member 52 are integrally formed. The lower connector 53 and the base plate of the foot fixing member 54 are integrally formed. In this embodiment, the lifting platform assembly 5 is located on the side of its corresponding cylinder 6 closer to the other cylinder 6; the lower connector 53 is fixed to the cylinder 6. The foot fixing member 54 is located on the side of its corresponding cylinder 6 closer to the other cylinder 6. The fixing frame 4 is provided with a connecting platform 4a and a bearing platform 4b. The connecting platform 4a is located on one side of the bearing platform 4b, and the lower end of the inner rod 41 is connected to the connecting platform 4a. The bearing platform 4b is located on the side of its corresponding cylinder 6 closer to the other cylinder 6 and is directly below its corresponding foot fixing member 54. This design ensures that the foot anchor 54 rests on the support platform 4b when the lifting platform assembly 5 descends to its lowest position, allowing for upward and downward movement of the user. Furthermore, during use, the weight of the user on the lifting platform assembly 5 and the support force from the ground on the support platform 4b are aligned vertically, resulting in a force balance between the left and right stilt assemblies 2 and 3, thus preventing any torque on the stilts. The leg anchor 52 is located on the side of its corresponding cylinder 6 closest to the other cylinder 6, and directly above its corresponding foot anchor 54. Both the foot anchor 54 and the leg anchor 52 are equipped with straps or ties to connect to the corresponding parts of the user's body.

[0028] Please refer to the following: Figures 1 to 5 The fixed frame 4 also includes a support base 42 and a first elastic member 43. The support platform 4b is pivotally connected to the support base 42. One end of the first elastic member 43 is pivotally connected to one side of the support platform 4b, and the other end of the first elastic member 43 is pivotally connected to one side of the support base 42. Due to the buffering effect of the elastic member, the forward and backward movements are more stable.

[0029] Please refer to the following: Figures 1 to 5The first gas valve 11 is equipped with a first flow regulator 8 for adjusting the gas flow rate. The user can adjust the lifting and lowering rate as needed. The second gas valve 73 is equipped with a second flow regulator 9 for adjusting the gas flow rate. The user can adjust the gas inlet and outlet rate of the second gas valve 73 as needed. Of course, the manufacturer can remove the first flow regulator 8 or the second flow regulator 9 as needed.

[0030] Please refer to the following: Figures 1 to 5 The working process of the synchronous lifting pneumatic stilt 100 of this utility model is as follows:

[0031] 1. After the external air compressor is turned on, the free end of the air inlet pipe 12 is inserted into the air outlet of the air compressor. The person stands on the lower connector 53 and the body is fixed by the foot fixing piece 54 and the leg fixing piece 52.

[0032] 2. Lifting operation: Activate the switch of the first air valve 11. High-pressure air enters the measuring cylinder 6, the inner rod 41 extends relative to the cylinder 6, and the leg fixing member 52 and foot fixing member 54 begin to rise. Simultaneously, when the air intake pipe 12 is inlet, the air intake through the air 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 locking block 711 of the pneumatic pressure head 71, moving it away from the locking rod 72, and keeping the locking teeth 721 in a disengaged state from the locking block 711. The second air valve 73 is a one-way valve, and the self-locking small cylinder formed at the pneumatic pressure head 71 automatically closes after being filled with air.

[0033] 3. Once the desired height is reached, activate the switch of the first air valve 11 to shut off the air intake of cylinder 6. Activate the second air valve 73 to vent the self-locking small cylinder 6. The engaging block 711 of the pneumatic pressure head 71 moves towards the locking rod 72, causing the engaging teeth 721 to engage with the engaging block 711, thus achieving locking.

[0034] 4. Lowering operation: Pull the switch of the first air valve 11. The gas in the cylinder 6 is discharged through the first air valve 11, and the stilts begin to descend. After descending to the desired height, close the first air valve 11 and stop the exhaust. The stilts will then stop at the current height.

[0035] 5. If the rising or falling speed is too fast, adjust the flow limiting knob of the first flow regulator 8 to adjust the speed to a suitable level.

[0036] By combining the pneumatic drive assembly 1, the left stilt assembly 2, and the right stilt assembly 3, the left stilt assembly 2 and the right stilt assembly 3 each include a fixed frame 4, a lifting platform assembly 5, and a cylinder 6. The lifting platform assembly 5 is mounted on the cylinder 6. The fixed frame 4 has an inner rod 41. The cylinder 6 is sleeved on the inner rod 41 and can slide relative to the inner rod 41. The lifting platform assembly 5 is raised and lowered by the relative sliding between the cylinder 6 and the inner rod 41. The pneumatic drive 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 mounted outside the cylinder 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, and the middle part of the first air pipe 13 is connected to the cylinder 6 of the right stilt assembly 3. The other end of the first air pipe 13 is connected to the cylinder 6 of the left stilt assembly 2. By the air intake pipe 12 and the opening of the first air valve 11, air is filled into the two cylinders 6, which drives the lifting platform assemblies 5 on both sides to rise. In other words, since the air intake pipe 12 controls the cylinders 6 of the left stilt assembly 2 and the cylinders 6 of the right stilt assembly 3 at the same time, the air intake pipe 12 and the first air valve 11 can realize the synchronous rise of both sides. Closing the first air valve 11 can fix its height. When it is necessary to lower, simply open the first air valve 11 again to release air to achieve descent. This not only has a simple structure and low cost, but also avoids the defect of traditional stilts that require repeated adjustments on both sides, improving the convenience and safety of use. Furthermore, by placing the lifting platform assembly 5 on the side of its corresponding cylinder 6 close to the other cylinder 6, and placing the support platform 4b on the side of its corresponding cylinder 6 close to the other cylinder 6, and directly below its corresponding lifting platform assembly 5, the weight of the human body on the lifting platform assembly 5 and the supporting force on the support platform 4b can be aligned in a straight line, thus preventing the generation of torque. This balances the forces on the left stilt assembly 2 and the right stilt assembly 3, preventing the upper part of the stilts from pressing against the body and improving the comfort and safety of use.

[0037] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A synchronously lifting pneumatic stilt, characterized in that, The device includes a pneumatic drive assembly and symmetrically arranged left and right stilt assemblies. Each of the left and right stilt assemblies includes a fixed frame, a lifting platform assembly, and a cylinder. The lifting platform assembly is mounted on the cylinder. The fixed frame has an inner rod, and the cylinder is sleeved on the inner rod and can slide relative to it. The pneumatic drive assembly is disposed outside one of the cylinders in the left and right stilt assemblies and drives each cylinder to slide relative to the inner rod, thereby raising and lowering the lifting platform assembly. The lifting platform assembly is located on the side of the corresponding cylinder closer to the other cylinder. The fixed frame has a connecting platform and a support platform. The connecting platform is located on one side of the support platform, and the lower end of the inner rod is connected to the connecting platform. The support platform is located on the side of the corresponding cylinder closer to the other cylinder and is directly below the corresponding lifting platform assembly.

2. The synchronous lifting pneumatic stilts according to claim 1, characterized in that, The pneumatic drive assembly 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 assembly. The other end of the first air pipe is connected to the cylinder body of the left stilt assembly. By the air intake pipe and the opening of the first air valve, air is filled into the two cylinder bodies, which drives the lifting platform assemblies on both sides to rise.

3. The synchronous lifting pneumatic stilts according to claim 2, characterized in that, It also includes a protective component for locking the relative position between the inner rod and the cylinder.

4. The synchronous lifting pneumatic stilts according to claim 3, characterized in that, The protection assembly includes a pneumatic pressure head, a locking lever, a second air valve, and a second air pipe. The second air valve is installed outside the cylinder body. The air intake 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 pressure head. The lower end of the locking lever is connected to the connecting platform. The locking lever has locking teeth arranged along its length. The pneumatic pressure head has locking blocks that cooperate with the locking teeth. By the air intake pipe and the opening of the second air valve, the gas in the second air pipe pushes against the locking blocks of the pneumatic pressure head and moves away from the locking lever, so that the locking teeth and the locking blocks remain in a disengaged state.

5. The synchronous lifting pneumatic stilts according to claim 4, characterized in that, The card-mounting rod is coaxial with the inner rod and is integrally formed.

6. The synchronous lifting pneumatic stilts according to claim 1, characterized in that, The lifting platform assembly includes a lower connector and a foot fixing member. The foot fixing member is connected to the cylinder body through the lower connector. The foot fixing member is located on the side of the cylinder body corresponding to it, close to the other cylinder body, and directly above the support platform corresponding to it.

7. The synchronous lifting pneumatic stilts according to claim 6, characterized in that, The lifting platform assembly also includes an upper connector and a leg fixing member. The leg fixing member is connected to the cylinder body through the upper connector. The leg fixing member is located on the side of the cylinder body corresponding to it, close to the other cylinder body, and directly above the foot fixing member corresponding to it.

8. The synchronous lifting pneumatic stilts according to claim 1, characterized in that, The fixing frame also includes a support base and a first elastic member. The support platform is pivotally connected to the support base. One end of the first elastic member is pivotally connected to one side of the support platform, and the other end of the first elastic member is pivotally connected to one side of the support base.

9. The synchronous lifting pneumatic stilts according to claim 2, characterized in that, The first gas valve is equipped with a first flow regulator for adjusting the gas flow rate.

10. The synchronous lifting pneumatic stilts according to claim 4, characterized in that, The second gas valve is equipped with a second flow regulator for adjusting the gas flow rate.

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