A loader for excavating and repairing road surface
By setting a hydraulic cylinder and protective device on the side of the loader bucket, the internal liquid inside the hydraulic cylinder is used to promote the piston and hydraulic rod, and the protective board is shifted upward to solve the problem of low roads and construction efficiency of traditional loaders during construction. Improve the reliability and safety of the device.
Patent Information
- Application Number
- CN202411594264.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-09
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2044-11-09
AI Technical Summary
In road construction, traditional loaders have problems such as bucket material drops and damage to the road surface, low construction efficiency, and difficult to control the size of the foundation pit. In addition, existing skid loaders are difficult to achieve material protection inside the bucket, which reduces the reliability and safety of the device. sex.
By setting a hydraulic cylinder on the side of the loader's bucket, and using components such as the force rod, hydraulic rod, and protective plate to cooperate with each other, the liquid inside the hydraulic cylinder pushes the piston and hydraulic rod to move, and pushes the protective plate to move upward to protect the road surface and work. personnel to ensure the safety and reliability of the bucket.
It effectively prevents damage to the road surface caused by falling materials, improves the reliability and safety of the loader, reduces manual intervention, and improves construction efficiency.
Smart Images

Figure CN119083512B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of loaders, and in particular to a loader used for excavating and repairing a road surface. Background Art
[0002] In the traditional road single-light foundation construction process, it is necessary to manually break the road surface and manually excavate the foundation. However, there are the following shortcomings in actual construction: since manual work requires professional breaking equipment, for rigid road surfaces, it is easy to cause damage to the equipment during breaking construction, resulting in construction delays; during earth excavation, the construction efficiency is low due to the small working space of the foundation pit; affected by the working space and construction period, it is difficult to control the size and elevation of the foundation pit, resulting in waste of foundation construction materials in the later stage.
[0003] According to a disclosed skid loader (publication number: CN217870704U), it includes a skid loader body, a road surface crushing device and an auger drilling mechanism, wherein the auger drilling mechanism for drilling holes is arranged at the front end cantilever of the skid loader body; the road surface crushing device for breaking the road surface is installed on the rear end frame of the skid loader body. This application solves the problem of low efficiency of manual excavation during construction, quickly determines the excavation range and excavation depth, and completes the construction task. However, in the above-mentioned device, through the cooperation of components such as the skid loader body, the road surface crushing device and the auger drilling mechanism, it is difficult to achieve the effect of protecting the construction materials inside the bucket, and it is difficult to prevent the materials from falling and damaging the road surface, which reduces the reliability of the device and it is difficult to ensure the safety and reliability of the bucket during operation, which needs to be improved. Summary of the invention
[0004] The present invention proposes a loader for excavating and repairing roads. The force of the piston inside the hydraulic cylinder is squeezed by the force of the force-bearing rod moving inward, and the components such as the protective plate, spring and hydraulic rod in the protective device cooperate with each other, so that the liquid inside the hydraulic cylinder pushes another piston to move, the piston pushes the hydraulic rod to move, and the hydraulic rod pushes the protective plate to move upward, thereby solving the existing problems.
[0005] The technical solution of the present invention is as follows: A loader for excavating and repairing a road surface comprises a loader body, a mechanical arm is arranged on the side of the loader body, a bucket is arranged on the side of the loader body, and a protective device is arranged on the side of the loader body;
[0006] The protective device includes a hydraulic cylinder, which is fixedly connected to the side of the bucket. One end of the hydraulic cylinder is slidably connected to a force rod through a piston, and the other end of the hydraulic cylinder is slidably connected to a hydraulic rod through a piston. The end of the hydraulic rod away from the hydraulic cylinder is fixedly connected to a protective plate.
[0007] A spring is fixedly connected to the side of the hydraulic cylinder, and one end of the spring away from the hydraulic cylinder is fixedly connected to the circumferential surface of the hydraulic rod. The design of the hydraulic cylinder can make the protective plate rise, which can effectively protect the road surface and workers and prevent damage caused by accidental falling of building materials.
[0008] The initial state of the spring is a relaxed state. The number of the hydraulic rods is set to two, and they are symmetrical to each other along the vertical center axis of the bucket. The design of the spring can reset the guard plate, reduce manual intervention, improve work efficiency, and enable the loader to maintain efficient operation under different working conditions.
[0009] The side of the loader body is provided with a unloading device, and the unloading device includes a fixing rod, the fixing rod is fixedly connected to the bottom of the protective plate, the side of the bucket is rotatably connected to a rotating rod, the circumferential surface of the rotating rod is fixedly connected to a disc, the circumferential surface of the disc is fixedly connected to a supporting rod, the circumferential surface of the disc is fixedly connected to an extrusion rod, a torsion spring rod passes through the side of the bucket, the circumferential surface of the torsion spring rod is fixedly connected to a unloading plate, the circumferential surface of the torsion spring rod is fixedly connected to a positioning rod, the side of the unloading plate is slidably connected to a slide plate, the side of the slide plate is fixedly connected to a torsion spring column, the inner wall of the bucket is fixedly connected to a fixing block, the side of the bucket is fixedly connected to a fixing plate, the top of the fixing plate is provided with a switch, the side of the bucket is provided with a double-headed motor, the output shaft of the double-headed motor is fixedly connected to a rotating rod, the circumferential surface of the rotating rod is fixedly connected to a vibrating block, and the side of the protective plate is fixedly connected to a round rod.
[0010] The control end of the switch is located on the movement trajectory of the round rod, and the support rod is located on the movement trajectory of the fixed rod. The design of the switch can accurately control the double-headed motor, speed up the unloading speed, prevent material from remaining in the bucket, ensure the thoroughness of unloading, and improve work efficiency.
[0011] The positioning rod is located on the movement track of the extrusion rod, the initial state of the torsion spring rod is a relaxed state, the fixing block is located on the movement track of the slide plate, and the design of the torsion spring rod can enable the unloading plate to rotate and quickly pull the material out of the bucket.
[0012] An auxiliary unloading device is provided on the side of the bucket, and the auxiliary unloading device includes a rotating shaft, which is fixedly connected to the circumferential surface of the rotating rod, and the end of the rotating shaft away from the rotating rod is fixedly connected to the extrusion block, and the side of the bucket is fixedly connected to a hydraulic cylinder A, one end of the hydraulic cylinder A is slidably connected to a force rod A through a piston, and the other end of the hydraulic cylinder A is slidably connected to the hydraulic rod A through a piston, and the end of the force rod A away from the hydraulic cylinder A is fixedly connected to a mounting block, and the end of the hydraulic rod A away from the hydraulic cylinder A is fixedly connected to a ball, and the circumferential surface of the torsion spring rod is fixedly connected to a positioning block.
[0013] One end of the positioning block is set as an arc surface, the positioning block is located on the movement trajectory of the ball, and the mounting block is located on the movement trajectory of the extrusion block. The ball extrudes the positioning block to make the unloading plate shake. By shaking the unloading plate, the material adhesion is effectively reduced to ensure fast and thorough unloading.
[0014] One end of the mounting block is set as an inclined surface, the shape of the hydraulic cylinder A is set as an L shape, wheels are set at the bottom of the loader body, and the mounting block is set as an inclined surface, so that the extrusion block can extrusion the positioning block to move.
[0015] The number of the protective plates is set to two, and they are symmetrical to each other along the vertical center axis of the bucket. The initial state of the torsion spring column is a relaxed state. The design of the protective plates ensures the safety and reliability of the bucket during operation.
[0016] The working principle and beneficial effects of the present invention are:
[0017] 1. In the present invention, the force of the piston inside the hydraulic cylinder is squeezed by the inward displacement of the force-bearing rod, and the protective plate, spring, hydraulic rod and other components in the protective device cooperate with each other, so that the liquid inside the hydraulic cylinder pushes the other piston to move, the piston pushes the hydraulic rod to move, and the hydraulic rod pushes the protective plate to move upward, thereby achieving the effect of protecting the construction materials inside the bucket, preventing the materials from falling and damaging the road surface, or hitting the staff, increasing the reliability of the device, and ensuring the safety and reliability of the bucket during operation.
[0018] 2. In the present invention, the force of the support rod being squeezed downward by the fixed rod cooperates with the torsion spring rod, fixed block, fixed plate and other components in the unloading device to achieve the effect of vibrating the bucket, thereby accelerating the unloading speed, preventing materials from remaining in the bucket, ensuring the thoroughness of unloading, improving work efficiency, accelerating the material unloading speed, reducing operation time, and improving production efficiency.
[0019] 3. In the present invention, the force of the rotating shaft driven by the rotation of the rotating rod cooperates with the components such as the hydraulic rod A, the hydraulic cylinder A and the positioning block in the auxiliary unloading device, so that the positioning block drives the torsion spring rod to rotate, and the unloading plate is driven to rotate by the rotation of the torsion spring rod, thereby achieving the effect of shaking the material plate, further accelerating the unloading speed, effectively reducing material adhesion, and ensuring fast and thorough unloading. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present invention;
[0022] Figure 2 It is a three-dimensional side view structural schematic diagram of the mechanical arm of the present invention;
[0023] Figure 3 It is a three-dimensional enlarged structural schematic diagram of the hydraulic cylinder of the present invention;
[0024] Figure 4 It is a schematic diagram of the three-dimensional upward structure of the rear of the bucket of the present invention;
[0025] Figure 5 It is a three-dimensional side view structural schematic diagram of the stress-bearing rod of the present invention;
[0026] Figure 6 It is a three-dimensional enlarged structural schematic diagram of the slide plate of the present invention;
[0027] Figure 7 It is a three-dimensional side view structural schematic diagram of the mounting block of the present invention;
[0028] Figure 8 For the present invention Figure 4 Schematic diagram of the three-dimensional enlarged structure of A in the middle.
[0029] In the figure: 101, loader body; 102, mechanical arm; 103, bucket; 104, wheel; 2, protective device; 201, hydraulic cylinder; 202, force rod; 203, hydraulic rod; 204, spring; 205, protective plate; 3, unloading device; 301, fixed rod; 302, rotating rod; 303, disc; 304, support rod; 305, extrusion rod; 306, torsion spring rod; 307, positioning rod; 308, Unloading plate; 309, slide plate; 310, fixed block; 311, round rod; 312, fixed plate; 313, switch; 314, double-headed motor; 315, rotating rod; 316, vibrating block; 317, torsion spring column; 4, auxiliary unloading device; 401, rotating shaft; 402, extrusion block; 403, hydraulic cylinder A; 405, force rod A; 406, mounting block; 407, hydraulic rod A; 408, ball; 409, positioning block. DETAILED DESCRIPTION
[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1
[0031] like Figure 1 to Figure 8As shown, this embodiment proposes a loader for excavating and repairing a road surface, including a loader body 101, a mechanical arm 102 is arranged on the side of the loader body 101, a bucket 103 is arranged on the side of the loader body 101, and a protective device 2 is arranged on the side of the loader body 101; the protective device 2 includes a hydraulic cylinder 201, the hydraulic cylinder 201 is fixedly connected to the side of the bucket 103, one end of the hydraulic cylinder 201 is connected to a force rod 202 through a piston sliding, the other end of the hydraulic cylinder 201 is connected to a hydraulic rod 203 through a piston sliding, and the end of the hydraulic rod 203 away from the hydraulic cylinder 201 is fixedly connected to a protective plate 205. A spring 204 is fixedly connected to the side of the hydraulic cylinder 201, and the end of the spring 204 away from the hydraulic cylinder 201 is fixedly connected to the circumferential surface of the hydraulic rod 203. The design of the hydraulic cylinder 201 can make the protective plate 205 rise, which can effectively protect the road surface and the staff and prevent damage caused by accidental falling of building materials. The initial state of the spring 204 is a relaxed state. The number of hydraulic rods 203 is set to two, and they are symmetrical along the vertical center axis of the bucket 103. The design of the spring 204 can reset the protective plate 205, reduce manual intervention, improve work efficiency, and enable the loader to maintain efficient operation under different working conditions. A feeding device 3 is provided on the side of the loader body 101. The feeding device 3 includes a fixed rod 301. The fixed rod 301 is fixedly connected to the bottom of the protective plate 205. The side of the bucket 103 is rotatably connected to a rotating rod 302. The circumferential surface of the rotating rod 302 is fixedly connected to a disk 303. The circumferential surface of the disk 303 is fixedly connected to a support rod 304. The circumferential surface of the disk 303 is fixedly connected to an extrusion rod 305. A torsion spring rod 306 runs through the side of the bucket 103. The circumferential surface of the torsion spring rod 306 is fixedly connected to a feeding plate 308. The circumferential surface of the torsion spring rod 306 is fixedly connected to the A positioning rod 307 is connected, a sliding plate 309 is slidably connected to the side of the unloading plate 308, a torsion spring column 317 is fixedly connected to the side of the sliding plate 309, a fixing block 310 is fixedly connected to the inner wall of the bucket 103, a fixing plate 312 is fixedly connected to the side of the bucket 103, a switch 313 is arranged on the top of the fixing plate 312, a double-headed motor 314 is arranged on the side of the bucket 103, a rotating rod 315 is fixedly connected to the output shaft of the double-headed motor 314, a vibrating block 316 is fixedly connected to the circumferential surface of the rotating rod 315, and a round rod 311 is fixedly connected to the side of the protective plate 205. The control end of the switch 313 is located on the motion track of the round rod 311, and the support rod 304 is located on the motion track of the fixed rod 301. The design of the switch 313 can accurately control the double-headed motor 314, speed up the unloading speed, prevent the material from remaining in the bucket 103, ensure the thoroughness of unloading, and improve work efficiency. The positioning rod 307 is located on the movement trajectory of the extrusion rod 305, the initial state of the torsion spring rod 306 is a relaxed state, the fixing block 310 is located on the movement trajectory of the slide plate 309, and the design of the torsion spring rod 306 allows the unloading plate 308 to rotate and quickly push the material out of the bucket 103.
[0032] In this embodiment, when the loader body 101 starts, the bucket 103 shovels the construction materials. At this time, the construction materials need to be loaded, and the mechanical arm 102 drives the bucket 103 to rotate, so that the bucket 103 rotates to a vertical state. At this time, the force rod will be squeezed by the mechanical arm 102, so that the force rod 202 moves inward to squeeze the piston inside the hydraulic cylinder 201, and the piston inside the hydraulic cylinder 201 pushes the liquid inside it. The liquid inside the hydraulic cylinder 201 pushes another piston to move, and the piston pushes the hydraulic rod 203 to move. The hydraulic rod 203 pushes the protective plate 205 to move upward, thereby protecting the construction materials inside the bucket 103, preventing the materials from falling and damaging the road surface, or hitting the staff, thereby increasing the reliability of the device. When the bucket 103 starts to unload, the force rod 202 loses the squeezing force, and the protective plate 205 is reset by the elastic force of the spring 204, thereby increasing the reliability of the device and ensuring the safety and reliability of the bucket during operation.
[0033] When the protection plate 205 is reset, the fixing rod 301 will be driven to move downward, and the fixing rod 301 will be moved downward to squeeze the support rod 304, so that the support rod 304 drives the disc 303 to rotate, and then the disc 303 drives the squeezing rod 305 to rotate, and the squeezing rod 305 squeezes the positioning rod 307 to rotate, and then the positioning rod 307 rotates to drive the torsion spring rod 306 to rotate, and the torsion spring rod 306 rotates to drive the blanking plate 308 to rotate, and the blanking plate 308 rotates to squeeze one end of the slide plate 309 through the rotation of the fixed block 310, so that the slide plate 309 rotates to prevent material from adhering to residues. , the unloading plate 308 is flipped to push out the material, and the round rod 311 is driven to move downward by the downward displacement of the protective plate 205, and then the switch 313 is squeezed by the round rod 311, and the switch 313 controls the double-headed motor 314, and the double-headed motor 314 drives the rotating rod 315 to rotate, and then the rotating rod 315 rotates to drive the vibration block 316 to rotate, thereby achieving the effect of vibrating the bucket 103, achieving the effect of accelerating the unloading speed, preventing the material from remaining in the bucket, ensuring the thoroughness of unloading, improving work efficiency, accelerating the material unloading speed, reducing the operation time, and improving production efficiency. Example 2
[0034] like Figure 1 to Figure 8As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a loader for excavating and repairing a road surface, an auxiliary unloading device 4 is arranged on the side of the bucket 103, the auxiliary unloading device 4 includes a rotating shaft 401, the rotating shaft 401 is fixedly connected to the circumferential surface of the rotating rod 315, the end of the rotating shaft 401 away from the rotating rod 315 is fixedly connected to the extrusion block 402, the side of the bucket 103 is fixedly connected to a hydraulic cylinder A403, one end of the hydraulic cylinder A403 is slidably connected to a force rod A405 through a piston, the other end of the hydraulic cylinder A403 is slidably connected to a hydraulic rod A407 through a piston, the end of the force rod A405 away from the hydraulic cylinder A403 is fixedly connected to a mounting block 406, the end of the hydraulic rod A407 away from the hydraulic cylinder A403 is fixedly connected to a ball 408, and the circumferential surface of the torsion spring rod 306 is fixedly connected to a positioning block 409. One end of the positioning block 409 is set as an arc surface, and the positioning block 409 is located on the movement trajectory of the ball 408. The mounting block 406 is located on the movement trajectory of the extrusion block 402. The ball 408 squeezes the positioning block 409, which can make the unloading plate 308 shake. By shaking the unloading plate 308, the material adhesion is effectively reduced to ensure fast and thorough unloading. One end of the mounting block 406 is set as an inclined surface, and the shape of the hydraulic cylinder A403 is set as an L shape. The bottom of the loader body 101 is provided with a wheel 104. The mounting block 406 is set as an inclined surface, which can make the extrusion block 402 squeeze the positioning block 409 to move. The number of protective plates 205 is set to two, and they are symmetrical to each other along the vertical center axis of the bucket 103. The initial state of the torsion spring column 317 is a relaxed state. The design of the protective plate 205 ensures the safety and reliability of the bucket 103 during operation.
[0035] In this embodiment, the rotating shaft 401 is rotated by rotating the rotating rod 315, and the extrusion block 402 is rotated by rotating the rotating shaft 401, and the extrusion block 402 is rotated to extrude the mounting block 406 for displacement, and the displacement of the mounting block 406 drives the force rod A405 to be displaced, so that the force rod A405 is displaced inward to extrude the piston inside the hydraulic cylinder A403, and the piston inside the hydraulic cylinder A403 pushes the liquid inside it, and the liquid inside the hydraulic cylinder A403 pushes another piston to be displaced, and the piston pushes the hydraulic rod A407 to be displaced. The hydraulic rod A407 pushes the ball 408 to move, and then the ball 408 squeezes the arc surface of the positioning block 409, so that the positioning block 409 drives the torsion spring rod 306 to rotate, and the rotation of the torsion spring rod 306 drives the unloading plate 308 to rotate. When the extrusion block 402 is away from the mounting block 406, the unloading plate 308 is reset by the elastic force of the torsion spring rod 306, thereby realizing the shaking effect of the unloading plate 308, further accelerating the unloading speed, effectively reducing material adhesion, ensuring fast and thorough unloading, enhancing the safety and reliability of operation, and improving the overall work efficiency.
[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A loader for excavating and repairing a road surface, characterized in that: It comprises a loader body (101), a mechanical arm (102) is arranged on the side of the loader body (101), a bucket (103) is arranged on the side of the loader body (101), and a protective device (2) is arranged on the side of the loader body (101); The protection device (2) comprises a hydraulic cylinder (201), wherein the hydraulic cylinder (201) is fixedly connected to a side of the bucket (103), one end of the hydraulic cylinder (201) is slidably connected to a force-bearing rod (202) via a piston, the other end of the hydraulic cylinder (201) is slidably connected to a hydraulic rod (203) via a piston, and one end of the hydraulic rod (203) away from the hydraulic cylinder (201) is fixedly connected to a protection plate (205); A material discharge device (3) is provided on the side of the loader body (101), and the material discharge device (3) comprises a fixed rod (301), the fixed rod (301) is fixedly connected to the bottom of the protective plate (205), the side of the bucket (103) is rotatably connected to a rotating rod (302), the circumferential surface of the rotating rod (302) is fixedly connected to a disk (303), the circumferential surface of the disk (303) is fixedly connected to a support rod (304), the circumferential surface of the disk (303) is fixedly connected to an extrusion rod (305), a torsion spring rod (306) penetrates the side of the bucket (103), the circumferential surface of the torsion spring rod (306) is fixedly connected to a material discharge plate (308), and the circumferential surface of the torsion spring rod (306) is fixedly connected to the The shovel (103) is fixedly connected with a positioning rod (307), the side of the blanking plate (308) is slidably connected with a slide plate (309), the side of the slide plate (309) is fixedly connected with a torsion spring column (317), the inner wall of the bucket (103) is fixedly connected with a fixing block (310), the side of the bucket (103) is fixedly connected with a fixing plate (312), the top of the fixing plate (312) is provided with a switch (313), the side of the bucket (103) is provided with a double-headed motor (314), the output shaft of the double-headed motor (314) is fixedly connected with a rotating rod (315), the circumferential surface of the rotating rod (315) is fixedly connected with a vibrating block (316), and the side of the protective plate (205) is fixedly connected with a round rod (311); An auxiliary material discharge device (4) is provided on the side of the bucket (103). The auxiliary material discharge device (4) comprises a rotating shaft (401). The rotating shaft (401) is fixedly connected to the circumferential surface of the rotating rod (315). One end of the rotating shaft (401) away from the rotating rod (315) is fixedly connected to an extrusion block (402). A hydraulic cylinder A (403) is fixedly connected to the side of the bucket (103). One end of the hydraulic cylinder A (403) is slidably connected to a force-bearing rod A (405) via a piston. The other end of the hydraulic cylinder A (403) is slidably connected to a hydraulic rod A (407) via a piston. One end of the force-bearing rod A (405) away from the hydraulic cylinder A (403) is fixedly connected to a mounting block (406). One end of the hydraulic rod A (407) away from the hydraulic cylinder A (403) is fixedly connected to a round ball (408). The circumferential surface of the torsion spring rod (306) is fixedly connected to a positioning block (409).
2. A loader for excavating and repairing a road surface according to claim 1, characterized in that: A spring (204) is fixedly connected to the side surface of the hydraulic cylinder (201), and one end of the spring (204) away from the hydraulic cylinder (201) is fixedly connected to the circumferential surface of the hydraulic rod (203).
3. A loader for excavating and repairing a road surface according to claim 2, characterized in that: The initial state of the spring (204) is a relaxed state, and the number of the hydraulic rods (203) is set to two, and they are symmetrical to each other along the vertical center axis of the bucket (103).
4. A loader for excavating and repairing a road surface according to claim 1, characterized in that: The control end of the switch (313) is located on the movement track of the round rod (311), and the support rod (304) is located on the movement track of the fixed rod (301).
5. A loader for excavating and repairing a road surface according to claim 1, characterized in that: The positioning rod (307) is located on the movement track of the extrusion rod (305), the initial state of the torsion spring rod (306) is a relaxed state, and the fixing block (310) is located on the movement track of the slide plate (309).
6. A loader for excavating and repairing a road surface according to claim 1, characterized in that: One end of the positioning block (409) is configured as an arc surface; the positioning block (409) is located on the movement trajectory of the sphere (408); and the mounting block (406) is located on the movement trajectory of the extrusion block (402).
7. A loader for excavating and repairing a road surface according to claim 6, characterized in that: One end of the mounting block (406) is arranged as an inclined surface, the shape of the hydraulic cylinder A (403) is arranged as an L-shape, and a wheel (104) is arranged at the bottom of the loader body (101).
8. A loader for excavating and repairing a road surface according to claim 7, characterized in that: The number of the protective plates (205) is set to two, and they are symmetrical to each other along the vertical center axis of the bucket (103), and the initial state of the torsion spring column (317) is a relaxed state.
Citation Information
Patent Citations
Skid steer loader
CN217870704U
Loader with monitoring device
CN214363695U