Portable pneumatic lamp holder for pit repair

Abstract

The utility model discloses a portable pneumatic lamp holder for pit repair, and belongs to the technical field of lamps. Comprising a base plate, a vertical rod is fixedly connected to the upper portion of the base plate, a transverse rod is arranged on the upper portion of the vertical rod through a connecting assembly, and a butt joint assembly is arranged at the outer end of the transverse rod; the connecting assembly comprises a connecting cylinder arranged at the upper end of the vertical rod, a hydraulic rod is arranged in the connecting cylinder, the outer end of the hydraulic rod is slidably connected with a hydraulic cylinder, and the outer end of the hydraulic cylinder is rotatably connected with the cross rod; according to the utility model, the bracket is moved to adapt to different use areas, so that the time cost is greatly reduced and the operation is convenient; and when the stroke of the hydraulic device is adjusted to the uppermost position, the lamp holder can be folded and fixed through a positioning plug pin, and the using portability is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of lighting technology, specifically relating to a portable pneumatic lamp holder for dent repair. Background Technology

[0002] A light stand is a device used to fix and support light fixtures, allowing them to be positioned at the appropriate height and providing stable illumination. It also enhances the appearance of the light fixtures and improves the overall decorative effect. Its purpose is to illuminate objects with light of varying intensities, and the light stand is what provides this illumination. Since the light source is fixed to the light stand, it ensures the balance of the light. It is generally indispensable in daily life. A high-quality professional light stand provides maximum load capacity in a minimal size. It is constructed of elegant black aluminum, is lightweight, portable, features easy-to-adjust knobs, a wide-diameter base for stability, and double-tube support for added strength. It is ideal for use as a light fixture or background support. Air-cushioned light stands provide maximum protection for flash units. The standard series light stands are basic yet possess advanced technology and a beautiful appearance. They are extremely durable with a scratch-resistant surface. Flexible connectors make them simpler and more convenient to use. The air-cushion series light stands are extremely durable and lightweight, making them an essential tool for busy studios.

[0003] Existing heavy-duty dent repair light fixtures are quite bulky. Because dent repair requires a clear view of the damaged part of the vehicle body in order to select the right tools and locate the damaged point, the shape of the dent will show more defects as the angle of the light changes. Therefore, each repair requires multiple adjustments to the light angle and distance from different positions. The farther the light is, the more obvious the defect will be.

[0004] The existing light fixtures require you to walk to the light fixture and adjust the locking device of the light panel support rod every time you change the position of the light, which wastes a lot of time. In addition, the height of the light panel cannot be used to repair high-roof vans. If it is too high, there is a risk of tipping over. The large light panel installed on the heavy-duty light fixture is more conducive to finding defects in the vehicle body, but it takes up a lot of space and is not convenient to carry. It cannot be installed in the vehicle when you go out to work. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a portable pneumatic lamp holder for dent repair, thus solving the problems mentioned in the background art.

[0006] The purpose of this utility model is achieved as follows: A portable pneumatic lamp holder for dent repair includes a chassis, a vertical rod fixedly connected to the top of the chassis, a horizontal rod provided above the vertical rod via a connecting assembly, and a docking assembly provided at the outer end of the horizontal rod; the connecting assembly includes a connecting cylinder provided at the upper end of the vertical rod, the connecting cylinder having a cavity structure, a hydraulic rod provided inside the connecting cylinder, the hydraulic rod being slidably connected to the connecting cylinder, a hydraulic cylinder being slidably connected to the outer end of the hydraulic rod, and the outer end of the hydraulic cylinder being rotatably connected to the horizontal rod.

[0007] Furthermore, a rod base is fixedly connected to the bottom of the vertical rod, a support frame is fixedly connected to the outside of the rod base, and a tray is fixedly connected to the top of the support frame.

[0008] Furthermore, a first chassis is fixedly connected to the bottom of the rod base. The surface of the first chassis is provided with a first curved slide rail hole, a second curved slide rail hole, a third curved slide rail hole, and a fourth curved slide rail hole. The curved slide rail is slidably connected to a low leg rod through a sliding link assembly. A second chassis is slidably connected below the low leg rod. A pentagonal handle is provided at the bottom of the second chassis. The pentagonal handle is connected through to the bottom of the vertical rod. Rivets are provided around the rod base. The rivets are connected through to the bottom of the second chassis.

[0009] Furthermore, the left side of the chassis is provided with a left first low leg short rod and a left second low leg short rod, and the right side of the chassis is provided with a right first low leg long rod and a right second low leg long rod.

[0010] Furthermore, a left-side embedded nut is provided through the top of the outer side of the left-side low leg short rod, a left-side bearing is fixedly connected to the bottom of the left-side embedded nut, a left-side wheel seat is rotatably connected below the left-side bearing, a left-side corner wheel is rotatably connected to the inner wall of the left-side wheel seat, and a left-side corner wheel braking device is provided on the outer wall of the left-side wheel seat.

[0011] Furthermore, a left-second embedded nut is provided through the top of the outer side of the left second low leg short rod, a left second bearing is fixedly connected to the bottom of the left second embedded nut, a left second wheel seat is rotatably connected below the left second bearing, a left second corner wheel is rotatably connected to the inner wall of the left second wheel seat, and a left second corner wheel braking device is provided on the outer wall of the left second wheel seat.

[0012] Furthermore, a stud is fixedly installed on the lower outer wall of the right low-leg long rod, and a right plum blossom handle is provided on the bottom surface of the stud. A right telescopic rod is slidably connected inside the right low-leg long rod, and a right embedded nut is provided through the top outer side of the right telescopic rod. A right bearing is fixedly connected to the bottom of the right embedded nut, and a right wheel seat is rotatably connected below the right bearing. A right corner wheel is rotatably connected to the inner wall of the right wheel seat, and a right corner wheel braking device is provided on the outer wall of the right wheel seat.

[0013] Furthermore, a right second stud is fixedly installed on the lower outer wall of the right second low-leg long rod, and a right second plum blossom handle is provided on the bottom surface of the right second stud. A right second telescopic rod is slidably connected inside the right second low-leg long rod. A right second embedded nut is provided through the top outer side of the right second telescopic rod. A right second bearing is fixedly connected to the bottom of the right second embedded nut. A right second wheel seat is rotatably connected below the right second bearing. A right second corner wheel is rotatably connected to the inner wall of the right second wheel seat. A right second corner wheel braking device is provided on the outer wall of the right second wheel seat.

[0014] Furthermore, a fixing knob is provided on the outer wall of the vertical rod, a sliding rod is slidably connected inside the vertical rod body, a baffle is fixedly welded to the top of the sliding rod, a column square tube is fixedly installed on the top of the baffle, a column fixing bolt is provided on the outer wall of the column square tube, and a lamp holder gasket is fixedly connected to the top of the column square tube.

[0015] Furthermore, a hydraulic rod adjuster is provided on the outer wall of the connecting cylinder, and the hydraulic rod adjuster is fixedly connected to the hydraulic rod. A connector is provided above the connecting cylinder, and the connecting cylinder is rotatably connected to a transverse telescopic tube support through the connector. A positioning pin is provided on the outer wall of the telescopic tube support.

[0016] Furthermore, the crossbar is slidably connected to a telescopic square tube on its outer side, and a telescopic round tube is slidably connected to the outer side of the telescopic square tube. A docking assembly is provided on the outer side of the telescopic round tube, and an adjustment handle is provided on the outer wall of the docking assembly. To use, first activate the brake on the bottom casters to allow them to rotate freely. Push the bracket to rotate the casters; the force generated by the rotation allows the bracket to be moved to different positions. Moving the bracket to accommodate different usage areas significantly reduces time costs and is quite convenient. A hydraulic device has been added to the height adjustment section of the lamp holder, with an adjustable connecting cylinder at the base. When the hydraulic device is fully adjusted, the lamp holder can be folded and secured by a positioning pin, effectively increasing portability. When the hydraulic device is adjusted downwards, the resistance at the front of the bracket increases, similar to a lever principle. The longer the hydraulic rod, the more the hydraulic device needs to be adjusted downwards. Once balanced, it can stop at any angle. The height can be adjusted using the slide bar above the vertical rod, effectively adapting to different height usage scenarios. The curved slide rails on the chassis allow for arbitrary adjustment of the placement angle of the lower leg and the length of the longer lower leg. Adjusting the length of the longer lower leg improves stability; a longer adjustment results in a larger stress point and a more stable overall structure.

[0017] The beneficial effects of this utility model are as follows: First, the brake device on the bottom casters is activated to allow them to rotate freely. Then, pushing the bracket causes the casters to rotate, and the force generated by the rotation allows the bracket to be moved to different positions. Moving the bracket to accommodate different usage areas significantly reduces time costs and is more convenient. Furthermore, a hydraulic device is added to the height adjustment section of the lamp holder, with an adjustable connecting cylinder at the base. When the hydraulic device is adjusted to its highest position, the lamp holder can be folded and secured by a positioning pin, effectively increasing ease of use. Portability; When in use, the resistance at the front of the bracket increases when the hydraulic device's stroke is adjusted downwards, similar to the lever principle. The longer the hydraulic rod, the more the stroke of the hydraulic device needs to be adjusted downwards. After finding balance, it can stop at any angle. Different heights can be adjusted via the slide bar above the vertical rod, effectively adapting to different usage scenarios. When in use, the placement angle of the low leg rod and the length of the long low leg rod can be adjusted arbitrarily via the curved slide rail on the chassis. Adjusting the length of the long low leg rod improves stability. The longer the adjusted length, the larger the stress point, and the more stable the whole structure becomes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of Embodiment 1;

[0019] Figure 2 This is a left top view of the three-dimensional structure of Embodiment 1;

[0020] Figure 3 This is a top view schematic diagram of the structure in Embodiment 1;

[0021] Figure 4 This is a right-side top-view three-dimensional structural diagram of Embodiment 1;

[0022] Figure 5 This is a right-view, bottom-view perspective of the three-dimensional structure of Example 1;

[0023] Figure 6 yes Figure 2 Enlarged view of A in the middle;

[0024] Figure 7 yes Figure 2 Enlarged view of B in the middle;

[0025] Figure 8 yes Figure 1 Enlarged view of C;

[0026] Figure 9 yes Figure 2 Enlarged view of D;

[0027] Figure 10 yes Figure 2 Enlarged image of E in Chinese;

[0028] Figure 11 This is a three-dimensional structural schematic diagram of Example 2;

[0029] Figure 12 yes Figure 11 Enlarged view of the Q-axis.

[0030] In the diagram: 1. Vertical rod, 2. Horizontal rod, 3. Connecting assembly, 4. Connecting cylinder, 6. Hydraulic rod, 7. Hydraulic cylinder, 8. Rod seat, 9. Support frame, 10. Pallet, 11. First chassis, 12. Second chassis, 13. First curved slide rail, 14. Second curved slide rail, 15. Plum blossom handle, 16. Rivet, 17. Left first low-leg short rod, 18. Left second low-leg short rod, 19. Right first low-leg long rod, 20. Right second low-leg long rod, 21. Left first embedded nut, 22. Left second embedded nut, 23. Right first embedded nut, 24. Right second embedded nut, 25. Left first bearing, 26. Left second bearing, 27. Right first bearing. 28 Right second bearing, 29 Left first wheel seat, 30 Left second wheel seat, 31 Right first wheel seat, 32 Right second wheel seat, 33 Left first corner wheel, 34 Left second corner wheel, 35 Right first corner wheel, 36 Right second corner wheel, 37 Left first corner wheel brake device, 38 Left second corner wheel brake device, 39 Right first corner wheel brake device, 40 Right second corner wheel brake device, 41 Fixed knob, 42 Slide rod, 43 Baffle, 44 Column square tube, 45 Column fixing bolt, 46 Lamp head gasket, 47 Hydraulic rod adjuster, 48 Connector, 49 Telescopic tube bracket, 50 Telescopic square tube, 51 Telescopic round tube, 52 Adjusting handle, 53 Positioning pin. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that all directional terms such as up, down, front, back, left, and right appearing in this utility model are not intended to limit the present invention, but are only used to more clearly explain and interpret the present invention. Example

[0032] like Figure 1-10As shown, this embodiment discloses a portable pneumatic lamp holder for dent repair, including a chassis. A vertical rod 1 is fixedly connected to the top of the chassis. A horizontal rod 2 is provided above the vertical rod 1 via a connecting assembly. A docking assembly 3 is provided at the outer end of the horizontal rod 2. The connecting assembly includes a connecting cylinder 4 located at the upper end of the vertical rod 1. The connecting cylinder 4 has a hollow structure, and a hydraulic rod 6 is provided inside the connecting cylinder 4. The hydraulic rod 6 is slidably connected to the connecting cylinder 4. A hydraulic cylinder 7 is slidably connected to the outer end of the hydraulic rod 6, and the outer end of the hydraulic cylinder 7 is rotatably connected to the horizontal rod 2. In use, first, the braking device of the bottom casters is opened to allow the casters to rotate freely. In use, the casters are rotated by pushing the bracket. The force generated by the rotation of the casters can move the bracket to different positions. By moving the bracket to cope with different usage areas, the time cost is greatly reduced, making it more convenient. A hydraulic device has been added to the height-adjustable part of the lamp holder. An adjustable connecting cylinder 4 is set at the base of the hydraulic device. When the hydraulic device is adjusted to its highest position, the lamp holder can be folded and fixed by the positioning pin, effectively increasing portability. When the hydraulic device is adjusted downward, the resistance at the front of the bracket increases, similar to the lever principle. The longer the hydraulic rod 6, the more the hydraulic device needs to be adjusted downward. After finding the balance, it can stop at any angle. Different heights can be adjusted by the slide bar 42 above the vertical rod 1, effectively adapting to different height usage scenarios. When in use, the placement angle of the low leg rod and the length of the long low leg rod can be adjusted arbitrarily by the curved slide rail on the chassis. Adjusting the length of the long low leg rod improves stability. The longer the length, the larger the stress point, and the more stable the whole.

[0033] In this embodiment, a rod seat 8 is fixedly connected to the bottom of the vertical rod 1, a support frame 9 is fixedly connected to the outside of the rod seat 8, and a tray 10 is fixedly connected above the support frame 9.

[0034] In this embodiment, a first base 11 is fixedly connected to the bottom of the rod base 8. The surface of the first base 11 is provided with a first curved slide rail 13, a second curved slide rail 14, a third curved slide rail, and a fourth curved slide rail. The curved slide rail is slidably connected to a low leg rod through a sliding link assembly. A second base 12 is slidably connected below the low leg rod. A plum blossom handle 15 is provided at the bottom of the second base 12. The plum blossom handle 15 is connected through to the bottom of the vertical rod 1. Rivets 16 are provided around the rod base 8. The rivets 16 are connected through to the bottom of the second base 12.

[0035] In this embodiment, a left low-leg short rod 17 and a left second low-leg short rod 18 are provided on the left side of the chassis, and a right low-leg long rod 19 and a right second low-leg long rod 20 are provided on the right side of the chassis.

[0036] In this embodiment, a left-side embedded nut 21 is provided through the top of the outer side of the left-side low-leg short rod 17. A left-side bearing 25 is fixedly connected to the bottom of the left-side embedded nut 21. A left-side wheel seat 29 is rotatably connected below the left-side bearing 25. A left-side corner wheel 33 is rotatably connected to the inner wall of the left-side wheel seat 29. A left-side corner wheel braking device 37 is provided on the outer wall of the left-side wheel seat 29.

[0037] In this embodiment, a left second embedded nut 22 is provided through the top of the outer side of the left second low leg short rod 18. A left second bearing 26 is fixedly connected to the bottom of the left second embedded nut 22. A left second wheel seat 30 is rotatably connected below the left second bearing 26. A left second corner wheel 34 is rotatably connected to the inner wall of the left second wheel seat 30. A left second corner wheel braking device 38 is provided on the outer wall of the left second wheel seat 30.

[0038] In this embodiment, a right stud is fixedly installed on the lower outer wall of the right low-leg long rod 19. A right plum blossom handle 15 is provided on the bottom surface of the right stud. A right telescopic rod is slidably connected inside the right low-leg long rod 19. A right embedded nut 23 is provided through the top of the outer side of the right telescopic rod. A right bearing 27 is fixedly connected to the bottom of the right embedded nut 23. A right wheel seat 31 is rotatably connected below the right bearing 27. A right corner wheel 35 is rotatably connected to the inner wall of the right wheel seat 31. A right corner wheel braking device 39 is provided on the outer wall of the right wheel seat 31.

[0039] In this embodiment, a right-side stud is fixedly installed on the lower outer wall of the right-side second low-leg long rod 20. A right-side second plum blossom handle 15 is provided on the bottom surface of the right-side second stud. A right-side second telescopic rod is slidably connected inside the right-side second low-leg long rod 20. A right-side second embedded nut 24 is provided through the top outer side of the right-side second telescopic rod. A right-side second bearing 28 is fixedly connected to the bottom of the right-side second embedded nut 24. A right-side second wheel seat 32 is rotatably connected below the right-side second bearing 28. A right-side second corner wheel 36 is rotatably connected to the inner wall of the right-side second wheel seat 32. A right-side second corner wheel braking device 40 is provided on the outer wall of the right-side second wheel seat 32.

[0040] In this embodiment, a fixing knob 41 is provided on the outer wall of the vertical rod 1, a sliding rod 42 is slidably connected inside the vertical rod 1, a baffle 43 is fixedly welded to the top of the sliding rod 42, a column square tube 44 is fixedly provided on the top of the baffle 43, a column fixing bolt 45 is provided on the outer wall of the column square tube 44, and a lamp holder gasket 46 is fixedly connected to the top of the column square tube 44.

[0041] In this embodiment, a hydraulic rod adjuster 47 is provided on the outer wall of the connecting cylinder 4. The hydraulic rod adjuster 47 is fixedly connected to the hydraulic rod 6. A connector 48 is provided on the top of the connecting cylinder 4. A transverse telescopic tube support 49 is rotatably connected to the connecting cylinder 4 through the connector 48. A positioning pin 53 is provided on the outer wall of the telescopic tube support 49.

[0042] In this embodiment, a telescopic square tube 50 is slidably connected to the outside of the crossbar 2, and a telescopic round tube 51 is slidably connected to the outside of the telescopic square tube 50. A docking component 3 is provided on the outside of the telescopic round tube 51, and an adjustment handle 52 is provided on the outer wall of the docking component 3. Example

[0043] like Figure 11-12 As shown, this embodiment discloses a portable pneumatic lamp holder for dent repair, including a chassis. A vertical rod 1 is fixedly connected to the top of the chassis. A horizontal rod 2 is connected to the upper end of the vertical rod 1 via a connecting assembly. A docking assembly 3 is provided at the outer end of the horizontal rod 2. The connecting assembly includes a connecting cylinder 4 disposed at the upper end of the vertical rod 1. The connecting cylinder 4 has a hollow structure. A hydraulic rod 6 is connected inside the connecting cylinder 4. The other end of the hydraulic rod 6 is connected to the horizontal rod 2. An adjusting seat is slidably disposed inside the connecting cylinder 4. A pin is fixedly disposed inside the adjusting seat. The inner end of the hydraulic rod 6 is rotatably connected to the pin, and the outer end of the hydraulic rod 6 is rotatably connected to the horizontal rod 2.

[0044] The difference between Embodiment 2 and Embodiment 1 lies in the structural shape of the connecting components, and in Embodiment 2, the tray 10 is positioned on the vertical rod 1. The tray 10 is used for placing items. If powered by a battery, it can be placed on a battery base. If powered by a lithium battery or a power bank, the tray 10 is installed in the middle of the vertical rod 1.

[0045] In this embodiment, the docking component 3 includes a base, inside which are two semi-circular iron blocks with a strong magnetic block in the middle. A sphere is provided on the back end of the lamp panel, and the sphere docks with the strong magnetic block to achieve omnidirectional rotation of the lamp panel.

[0046] The above are merely two preferred embodiments of this utility model. The connecting components created by this invention are not limited to the two structural shapes described above. Any equivalent substitutions or changes made by those skilled in the art to the technical solutions and concepts should be covered within the protection scope of this invention.

Claims

1. A portable pneumatic lamp holder for dent repair, comprising a chassis, characterized in that: A vertical rod is fixedly connected to the top of the chassis. A horizontal rod is connected to the upper end of the vertical rod via a connecting assembly. A docking assembly is provided at the outer end of the horizontal rod. The connecting assembly includes a connecting cylinder located at the upper end of the vertical rod. The connecting cylinder has a hollow structure. A hydraulic rod is connected inside the connecting cylinder. The other end of the hydraulic rod is connected to the horizontal rod.

2. The portable pneumatic lamp holder for dent repair according to claim 1, characterized in that: An adjusting seat is slidably arranged inside the connecting cylinder, and a pin is fixedly arranged inside the adjusting seat. The inner end of the hydraulic rod is rotatably connected to the pin, and the outer end of the hydraulic rod is rotatably connected to the crossbar.

3. The portable pneumatic lamp holder for dent repair according to claim 1, characterized in that: A rod base is fixedly connected to the bottom of the vertical rod, a support frame is fixedly connected to the outside of the rod base, and a tray is fixedly connected to the top of the support frame.

4. The portable pneumatic lamp holder for dent repair according to claim 3, characterized in that: The bottom of the pole base is fixedly connected to a first chassis. The surface of the first chassis is provided with a first curved slide rail, a second curved slide rail, a third curved slide rail, and a fourth curved slide rail. The curved slide rails are slidably connected to a low leg rod through a sliding link assembly. A second chassis is slidably connected below the low leg rod. The bottom of the second chassis is provided with a pentagonal handle, which is connected through to the bottom of the vertical rod. Rivets are provided around the pole base, and the rivets are connected through to the bottom of the second chassis. The left side of the chassis is provided with a left first low leg short rod and a left second low leg short rod, and the right side of the chassis is provided with a right first low leg long rod and a right second low leg long rod.

5. The portable pneumatic lamp holder for dent repair according to claim 4, characterized in that: A left-side embedded nut is provided through the top of the outer side of the left-side low-leg short rod. A left-side bearing is fixedly connected to the bottom of the left-side embedded nut. A left-side wheel seat is rotatably connected below the left-side bearing. A left-side corner wheel is rotatably connected to the inner wall of the left-side wheel seat. A left-side corner wheel braking device is provided on the outer wall of the left-side wheel seat.

6. The portable pneumatic lamp holder for dent repair according to claim 4, characterized in that: The top of the outer side of the left two low leg short rod is provided with a left two embedded nut, the bottom of the left two embedded nut is fixedly connected to a left two bearing, the left two wheel seat is rotatably connected below the left two bearing, the inner wall of the left two wheel seat is rotatably connected to a left two corner wheel, and the outer wall of the left two wheel seat is provided with a left two corner wheel braking device.

7. The portable pneumatic lamp holder for dent repair according to claim 4, characterized in that: A stud is fixedly installed on the lower outer wall of the right low-leg long rod. A right plum blossom handle is installed on the bottom surface of the right stud. A right telescopic rod is slidably connected inside the right low-leg long rod. A right embedded nut is inserted through the top of the outer side of the right telescopic rod. A right bearing is fixedly connected to the bottom of the right embedded nut. A right wheel seat is rotatably connected below the right bearing. A right corner wheel is rotatably connected to the inner wall of the right wheel seat. A right corner wheel braking device is installed on the outer wall of the right wheel seat.

8. The portable pneumatic lamp holder for dent repair according to claim 4, characterized in that: Two right studs are fixedly installed on the lower outer wall of the second right low-leg long rod. Two right plum blossom handles are installed on the bottom surface of the second right studs. Two right telescopic rods are slidably connected inside the second right low-leg long rod. Two right embedded nuts are installed through the top outer side of the second right telescopic rod. Two right bearings are fixedly connected to the bottom of the second right embedded nuts. Two right wheel seats are rotatably connected below the second right bearings. Two right corner wheels are rotatably connected to the inner wall of the second right wheel seats. A braking device for the right corner wheels is installed on the outer wall of the second right wheel seats.

9. The portable pneumatic lamp holder for dent repair according to claim 1, characterized in that: A fixing knob is provided on the outer wall of the vertical rod, a sliding rod is slidably connected inside the vertical rod body, a baffle is fixedly welded to the top of the sliding rod, a column square tube is fixedly installed on the top of the baffle, a column fixing bolt is provided on the outer wall of the column square tube, and a lamp holder gasket is fixedly connected to the top of the column square tube.

10. The portable pneumatic lamp holder for dent repair according to claim 1, characterized in that: A hydraulic rod adjuster is provided on the outer wall of the connecting cylinder, and the hydraulic rod adjuster is fixedly connected to the hydraulic rod. A connector is provided above the connecting cylinder, and the connecting cylinder is rotatably connected to a transverse telescopic tube support through the connector. A positioning pin is provided on the outer wall of the telescopic tube support. A telescopic square tube is slidably connected to the outer side of the crossbar, and a telescopic round tube is slidably connected to the outer side of the telescopic square tube. The docking assembly is provided at the outer end of the telescopic round tube, and an adjustment handle is provided on the outer wall of the docking assembly.

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