Main and auxiliary oil cylinder capable of being automatically leveled

Abstract

The invention discloses a main and auxiliary oil cylinder capable of being automatically leveled, and relates to the technical field of hydraulic oil cylinders, the main and auxiliary oil cylinder comprises a main cylinder body and an auxiliary cylinder body, and further comprises a detection assembly, an oil port A is formed in the circumferential surface of the main cylinder body, an oil pipe oil port B is formed in the circumferential surface of the main cylinder body, and an oil port C is formed in the circumferential surface of the auxiliary cylinder body; an oil port D is formed in the circumferential face of the auxiliary cylinder body, a connecting pipe is arranged between the main cylinder body and the auxiliary cylinder body, a small electric valve is arranged on the circumferential face of the main cylinder body, a containing frame is fixedly installed on the circumferential face of the main cylinder body, a displacement sensor is arranged in the containing frame, and a mounting groove is formed in the top of the displacement sensor. And the L-shaped plate moves downwards to be in contact with the square groove and performs auxiliary fixing on the displacement sensor, the displacement sensor can be further ensured to accurately feed back the motion abnormity of the main cylinder body through auxiliary supporting of the displacement sensor, and then the leveling accuracy between the main cylinder body and the auxiliary cylinder body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic cylinders, in particular to a main and auxiliary cylinder capable of automatic leveling. Background Art

[0002] The main and auxiliary oil cylinders that can be automatically leveled usually consist of the main and auxiliary oil cylinder bodies, displacement sensors, supporting devices and protective devices.

[0003] The patent with the patent announcement number CN210949343U relates to a multifunctional oil cylinder, including a main oil cylinder and a sub-oil cylinder, the main and sub-oil cylinders are connected by a connecting seat, the connecting seat also serves as the rear cover of the main oil cylinder and the front cover of the sub-oil cylinder, the piston rod of the sub-oil cylinder passes through the connecting seat and extends into the main oil cylinder, and the piston rod of the sub-oil cylinder is not connected to the piston rod of the main oil cylinder. The main oil cylinder and the sub-oil cylinder are respectively provided with two oil ports, the two oil ports of the main oil cylinder are respectively arranged on the cylinder barrel and the connecting seat, the two oil ports of the sub-oil cylinder are respectively arranged on the cylinder barrel and the rear cover of the sub-oil cylinder, and a limit sleeve is provided on the piston rod of the sub-oil cylinder. The main oil cylinder and the sub-oil cylinder are connected by screws, and the connecting seat is assembled together to form a finished oil cylinder. The installation screw passes through the sub-oil cylinder, the connecting seat, and the main oil cylinder to install the oil cylinder on the structural member. The oil cylinder can make the main oil cylinder and the sub-oil cylinder used in series, and the main and sub-oil cylinders work at the same time; it can also make the main oil cylinder work first, and the sub-oil cylinder is used as a booster oil cylinder to obtain greater thrust. This patent can realize rapid, ultra-high-pressure extrusion of domestic waste, so that domestic waste can be quickly and effectively separated into wet and dry types. The installation method can simplify the cylinder structure, making it easy to install and reducing the installation space.

[0004] In the above patent, rapid, ultra-high-pressure extrusion of domestic waste can be achieved, so that domestic waste can be quickly and effectively separated into wet and dry parts. The installation method can simplify the cylinder structure, facilitate installation and reduce the installation space. However, it is difficult to automatically level the main cylinder body and the auxiliary cylinder body, and it is difficult to protect the displacement sensor, which will cause the displacement sensor to be affected by external forces, resulting in inaccurate automatic leveling of the main cylinder body and the auxiliary cylinder body, affecting the overall performance and stability of the equipment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a main and auxiliary oil cylinder capable of automatic leveling, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a main and auxiliary oil cylinder capable of automatic leveling, comprising a main cylinder body and an auxiliary cylinder body, and also comprising a detection component, wherein the circumferential surface of the main cylinder body is provided with an A oil port, the circumferential surface of the main cylinder body is provided with a B oil pipe oil port, the circumferential surface of the auxiliary cylinder body is provided with a C oil port, the circumferential surface of the auxiliary cylinder body is provided with a D oil port, a connecting pipe is provided between the main cylinder body and the auxiliary cylinder body, a small electric valve is provided on the circumferential surface of the main cylinder body, a placement frame is fixedly installed on the circumferential surface of the main cylinder body, a displacement sensor is provided inside the placement frame, a mounting groove is provided on the top of the displacement sensor, and a square groove is provided on the front side of the displacement sensor, wherein the detection component comprises a U-shaped rod, a limit frame, a U-shaped plate, An L-shaped plate, a deceleration hole, a placement plate, a placement rod and a curved plate. The U-shaped plate moves downward to squeeze the L-shaped plate. The L-shaped plate moves downward due to the squeezing of the U-shaped plate. The L-shaped plate moves downward to contact the square groove and assists in fixing the displacement sensor. The U-shaped rod is fixedly installed on the top of the placement frame. The limit frame is slidably installed on the circumferential surface of the U-shaped rod. The U-shaped plate is fixedly installed on the top of the limit frame. The L-shaped plate slides through the top of the placement frame. The deceleration hole is opened on the left side of the placement frame. The placement plate is slidably installed on the inner wall of the placement frame. The placement rod is fixedly installed on the left side of the placement plate. The curved plate is fixedly installed on the circumferential surface of the placement rod. A control button is fixedly installed on the circumferential surface of the small electric valve. The control button is electrically connected to the small electric valve.

[0007] According to the above technical solution, the limit frame passes through the top of the placement frame, the bottom of the limit frame contacts the bottom of the inner wall of the installation groove, and a No. 1 spring is arranged between the limit frame and the placement frame, and the No. 1 spring can drive the limit frame to reset.

[0008] According to the above technical solution, the L-shaped plate contacts the inner wall of the square groove, the L-shaped plate contacts the U-shaped plate, the curved plate is elastic, and a No. 2 spring is arranged between the placement plate and the placement frame, and the No. 2 spring can drive the placement plate to reset.

[0009] According to the above technical solution, the circumferential surface of the main cylinder body is provided with a protective component for preventing the connecting pipe from being bent arbitrarily. The circumferential surface of the main cylinder body is provided with a protective component, and the protective component includes a detection frame, an elastic telescopic block, a sealing plate, an arc panel, a support plate, a detection plate and a T-shaped rod. The leaked hydraulic oil will fill the interior of the detection frame, and the hydraulic oil filling the interior of the detection frame will squeeze the detection plate. The detection frame is fixedly installed on the circumferential surface of the main cylinder body, the elastic telescopic block is fixedly installed on the top of the inner wall of the detection frame, the sealing plate is fixedly installed on the free end of the elastic telescopic block, the arc panel is fixedly installed on the left side of the sealing plate, the support plate is fixedly installed on the top of the detection frame, the detection plate is slidably installed on the inner wall of the detection frame, and the T-shaped rod is fixedly installed on the left side of the detection plate.

[0010] According to the above technical solution, the support plate contacts the arc plate, a No. 3 spring is arranged between the T-shaped rod and the detection frame, the No. 3 spring can drive the T-shaped rod to reset, and the arc plate contacts the connecting pipe.

[0011] According to the above technical solution, the T-shaped rod passes through the inner and outer walls of the detection frame, the placement rod contacts the sealing plate, the placement rod moves toward the direction close to the small electric valve to contact the sealing plate and squeeze the sealing plate, and the T-shaped rod contacts the control button.

[0012] According to the above technical solution, the protection component includes a protection tube, a protection rod, a protection ring, an annular frame, a rotating rod, a limiting rod and a movable groove. The limiting rod moves in a direction close to the U-shaped rod to contact the limit frame, limit the limit frame and lock the limit frame. The protection tube is fixed through the top of the detection frame, the protection rod is slidably installed on the inner wall of the protection tube, the protection ring is fixedly installed on the inner wall of the protection tube, the annular frame is slidably installed on the inner wall of the protection tube, the rotating rod is rotatably installed on the inner wall of the annular frame, the limiting rod is fixedly installed on the circumferential surface of the rotating rod, and the movable groove is opened on the side of the protective tube close to the limit frame, and liquid is arranged inside the protective tube.

[0013] According to the above technical solution, a No. 4 spring is arranged between the annular frame and the protective ring, and the No. 4 spring can drive the annular frame to reset. A clockwork spring is arranged between the rotating rod and the limiting rod, and one end of the clockwork spring is arranged on the inner wall of the annular frame, and the other end is arranged on the circumferential surface of the rotating rod. The clockwork spring can drive the rotating rod to reset, and the limiting rod is in contact with the limit frame.

[0014] The present invention provides a main and auxiliary oil cylinder capable of automatic leveling, which has the following beneficial effects: (1) The main and auxiliary oil cylinders that can be automatically leveled have an A oil port in the main cylinder as the oil inlet port for the rodless chamber. After the oil is inlet, the piston rod is fully extended and the piston valve core works to replenish oil. The oil enters the C oil port (rodless chamber of the auxiliary cylinder) from the B oil pipe oil port. After the rodless chamber of the auxiliary cylinder enters the oil, the piston rod is fully extended and the piston valve core works. The oil is discharged from the D oil port to the oil tank. After the two oil cylinders are extended at the same time, the oil is replenished and the air is blown out, so that the oil volume in the rod chamber of the main cylinder is equal to the oil volume in the rodless chamber of the auxiliary cylinder. The two oil cylinders can move synchronously within the specified stroke.

[0015] (2) The main and auxiliary oil cylinders that can be automatically leveled can only move slowly because the placement rod can only move slowly, and the placement plate can only move slowly so that the displacement sensor can only pop out slowly. By slowly popping out the displacement sensor during calibration, the displacement sensor can be effectively protected. Through effective protection, the displacement sensor can more accurately reflect the displacement state of the cylinder body, ensuring the leveling accuracy of the main cylinder body and the auxiliary cylinder body. The U-shaped plate moves downward to squeeze the L-shaped plate, and the L-shaped plate moves downward due to the squeezing of the U-shaped plate. The L-shaped plate moves downward and contacts the square groove to assist in fixing the displacement sensor. By auxiliary supporting the displacement sensor, it can be further ensured that the displacement sensor accurately feedbacks the movement abnormality of the main cylinder body, so that the main cylinder body and the auxiliary cylinder body can be leveled in time, thereby improving the accuracy of leveling between the main cylinder body and the auxiliary cylinder body.

[0016] (3) The main and auxiliary oil cylinders that can be automatically leveled, contact the connecting pipes through the movement of the arc plate and cooperate with the support plate to clamp the connecting pipes. The connecting pipes are clamped so that the connection between the connecting pipes and the main cylinder body will not be pulled or bent. If the connection of the connecting pipes is pulled or bent at will, it will cause the connecting pipes to rupture or the interface to loosen, thereby causing hydraulic oil leakage. By clamping the connection of the connecting pipes, the risk of leakage can be effectively reduced. The control button is pressed by the T-shaped rod to drive the small electric valve to close and stop the oil supply, thereby preventing further leakage of the hydraulic oil. After the leakage is detected, the control button is pressed to close the small electric valve in time, which can quickly cut off the flow of hydraulic oil and prevent the hydraulic oil from continuing to leak.

[0017] (4) The main and auxiliary oil cylinders that can automatically level the displacement sensor can contact the limit frame and limit and lock the limit frame by moving the limit rod in the direction close to the U-shaped rod. The limit frame can be locked by the limit rod to prevent accidental loosening of the displacement sensor during operation. The locking of the limit frame can ensure that the displacement sensor always remains stable during operation and will not cause position changes or loosening due to external forces or vibrations, thereby avoiding leveling errors or failures caused by loose displacement sensors. Before calibrating the displacement sensor, manually turn the limit rod to rotate it. The limit rod can release the limit on the limit frame by rotating it. The limit rod can be rotated to move it before releasing the limit on the limit frame, thereby preventing the displacement sensor from loosening due to accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the main cylinder body and the auxiliary cylinder body of the present invention; Figure 2 It is a schematic diagram of the main cylinder body and the placement frame position structure of the present invention; Figure 3 This is a schematic diagram of the position structure of the main cylinder body and the detection frame of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A; Figure 5 Schematic diagram of the internal structure of the detection frame of the present invention; Figure 6 This is a schematic diagram of the position structure of the detection frame and the sealing plate of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure of part B in the middle is enlarged; Figure 8 This is a schematic diagram of the internal structure of the protection tube of the present invention; Fig. 9 It is a schematic diagram of the position structure of the protection ring and the annular frame of the present invention.

[0019] In the figure: 1. main cylinder body; 101. A oil port; 102. B oil pipe oil port; 2. auxiliary cylinder body; 201. C oil port; 202. D oil port; 3. connecting pipe; 4. small electric valve; 5. placement frame; 6. displacement sensor; 7. mounting groove; 8. square groove; 9. U-shaped rod; 10. limit frame; 11. U-shaped plate; 12. L-shaped plate; 13. deceleration hole; 14. placement plate; 15. placement rod; 16. curved plate; 171. detection frame; 172. elastic telescopic block; 173. sealing plate; 174. arc plate; 175. support plate; 176. detection plate; 177. T-shaped rod; 178. control button; 181. protection tube; 182. protection rod; 183. protection ring; 184. ring frame; 185. rotating rod; 186. limiting rod; 187. moving groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in 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.

[0021] See also Figure 1-Figure 4, one embodiment of the present invention is: a main and auxiliary oil cylinder capable of automatic leveling, comprising a main cylinder body 1 and an auxiliary cylinder body 2, and also comprising a detection assembly, wherein the circumferential surface of the main cylinder body 1 is provided with an A oil port 101, the circumferential surface of the main cylinder body 1 is provided with a B oil pipe oil port 102, the circumferential surface of the auxiliary cylinder body 2 is provided with a C oil port 201, the circumferential surface of the auxiliary cylinder body 2 is provided with a D oil port 202, a connecting pipe 3 is provided between the main cylinder body 1 and the auxiliary cylinder body 2, a small electric valve 4 is provided on the circumferential surface of the main cylinder body 1, a placement frame 5 is fixedly installed on the circumferential surface of the main cylinder body 1, a displacement sensor 6 is arranged inside the placement frame 5, a mounting groove 7 is provided on the top of the displacement sensor 6, and a square groove 8 is provided on the front side of the displacement sensor 6, wherein the detection assembly comprises a U-shaped rod 9, a limit frame 10, a U-shaped plate 11, an L-shaped plate 12, a deceleration hole 13, a placement plate 14, a placement rod 15 and a curved plate 16, the U-shaped rod 9 is fixedly installed At the top of the placement frame 5, the limit frame 10 is slidably installed on the circumferential surface of the U-shaped rod 9, the U-shaped plate 11 is fixedly installed on the top of the limit frame 10, the L-shaped plate 12 slides through the top of the placement frame 5, the deceleration hole 13 is opened on the left side of the placement frame 5, the placement plate 14 is slidably installed on the inner wall of the placement frame 5, the placement rod 15 is fixedly installed on the left side of the placement plate 14, the curved plate 16 is fixedly installed on the circumferential surface of the placement rod 15, and the control button 178 is fixedly installed on the circumferential surface of the small electric valve 4, and the control button 178 is electrically connected to the small electric valve 4. Through effective protection, the displacement sensor 6 can more accurately reflect the displacement state of the main cylinder body 1, ensuring the leveling accuracy of the main cylinder body 1 and the auxiliary cylinder body 2. By auxiliary supporting the displacement sensor 6, it can further ensure that the displacement sensor 6 accurately feedbacks the movement abnormality of the main cylinder body 1, thereby improving the accuracy of leveling between the main cylinder body 1 and the auxiliary cylinder body 2.

[0022] The limit frame 10 passes through the top of the placement frame 5, and the bottom of the limit frame 10 contacts the bottom of the inner wall of the installation groove 7. A No. 1 spring is arranged between the limit frame 10 and the placement frame 5, and the limit frame 10 can be driven to reset by the No. 1 spring.

[0023] The L-shaped plate 12 contacts the inner wall of the square groove 8, the L-shaped plate 12 contacts the U-shaped plate 11, the curved plate 16 is elastic, and a No. 2 spring is arranged between the placement plate 14 and the placement frame 5, and the No. 2 spring can drive the placement plate 14 to reset.

[0024] When this embodiment is working: before calibrating the displacement sensor 6, manually pull the limit frame 10 upward, the limit frame 10 moves upward to squeeze the No. 1 spring, the No. 1 spring is squeezed by the limit frame 10 to produce deformation and accumulate force, and at the same time, the limit frame 10 moves upward to break away from the contact with the mounting groove 7 and release the limit of the displacement sensor 6. After the limit of the displacement sensor 6 is released, the placement plate 14 moves in the direction away from the small electric valve 4 under the elastic force of the No. 2 spring. The placement plate 14 moves in the direction away from the small electric valve 4 to drive the displacement sensor 6 to move and pop out the displacement sensor 6. At the same time, the placement plate 14 moves to drive the placement rod 15 to move, and the placement rod 15 moves to drive the curved plate 16 to move. The curved plate 16 moves to contact the deceleration hole 13 and squeeze the deceleration hole 13. The curved plate 16 is slowly deformed by the reaction force of squeezing the deceleration hole 13. The slow deformation of the curved plate 16 makes the placement rod 15 can only move slowly, the placement rod 15 can only move slowly, and the placement plate 14 can only move slowly. The slow movement makes the displacement sensor 6 only pop out slowly. After the displacement sensor 6 is accurately calibrated, the displacement sensor 6 is placed into the placement frame 5. The displacement sensor 6 is placed into the placement frame 5 and contacts the placement plate 14 and squeezes the placement plate 14. The placement plate 14 is squeezed by the displacement sensor 6 and moves in the direction close to the small electric valve 4. The placement plate 14 moves in the direction close to the small electric valve 4 to squeeze the No. 2 spring. The No. 2 spring is squeezed by the placement plate 14 to deform and accumulate force. When the displacement sensor 6 moves to the bottom of the limit frame 10, the limit frame 10 is released so that the limit frame 10 moves downward and resets under the elastic force of the No. 1 spring. The limit frame 10 moves downward and contacts the installation groove 7 and restores the limit of the displacement sensor 6. At the same time, the limit frame 10 moves downward and resets, driving the U-shaped plate 11 to move downward. The U-shaped plate 11 moves downward to squeeze the L-shaped plate 12. The L-shaped plate 12 is squeezed and moves downward by the U-shaped plate 11. The L-shaped plate 12 moves downward and contacts the square groove 8 and assists in fixing the displacement sensor 6.

[0025] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, a protective component for preventing the connecting pipe 3 from being bent arbitrarily is provided on the circumferential surface of the main cylinder body 1. The protective component includes a detection frame 171, an elastic telescopic block 172, a sealing plate 173, an arc panel 174, a support plate 175, a detection plate 176 and a T-shaped rod 177. The detection frame 171 is fixedly mounted on the circumferential surface of the main cylinder body 1, the elastic telescopic block 172 is fixedly mounted on the top of the inner wall of the detection frame 171, the sealing plate 173 is fixedly mounted on the free end of the elastic telescopic block 172, the arc panel 174 is fixedly mounted on the left side of the sealing plate 173, the support plate 175 is fixedly mounted on the top of the detection frame 171, the detection plate 176 is slidably mounted on the inner wall of the detection frame 171, and the T-shaped rod 177 is fixedly mounted on the left side of the detection plate 176. By clamping the connection of the connecting pipe 3, the risk of leakage can be effectively reduced. By pressing the control button 178 to close the small electric valve 4 in time after detecting the leakage, the flow of hydraulic oil can be quickly cut off to prevent the hydraulic oil from continuing to leak.

[0026] The support plate 175 contacts the arc plate 174 , and a No. 3 spring is provided between the T-shaped rod 177 and the detection frame 171 , and the No. 3 spring can drive the T-shaped rod 177 to reset, and the arc plate 174 contacts the connecting pipe 3 .

[0027] The T-shaped rod 177 passes through the inner and outer walls of the detection frame 171, and the placement rod 15 contacts the sealing plate 173. The placement rod 15 moves toward the direction close to the small electric valve 4, contacts the sealing plate 173 and squeezes the sealing plate 173, and the T-shaped rod 177 contacts the control button 178.

[0028] The protection assembly includes a protection tube 181, a protection rod 182, a protection ring 183, an annular frame 184, a rotating rod 185, a limiting rod 186 and a movable groove 187. The protection tube 181 is fixedly passed through the top of the detection frame 171, the protection rod 182 is slidably installed on the inner wall of the protection tube 181, the protection ring 183 is fixedly installed on the inner wall of the protection tube 181, the annular frame 184 is slidably installed on the inner wall of the protection tube 181, the rotating rod 185 is rotatably installed on the inner wall of the annular frame 184, the limiting rod 186 is fixedly installed on the circumferential surface of the rotating rod 185, and the movable groove 187 is provided on one side of the protection tube 181 close to the limit frame 10. Liquid is arranged inside the protection tube 181. The locking of the limit frame 10 can ensure that the displacement sensor 6 always remains stable during operation, and will not cause position changes or loosening due to external force or vibration, thereby avoiding leveling errors or failures caused by loosening of the displacement sensor 6.

[0029] A No. 4 spring is arranged between the annular frame 184 and the protective ring 183, and the No. 4 spring can drive the annular frame 184 to reset. A clockwork spring is arranged between the rotating rod 185 and the limiting rod 186. One end of the clockwork spring is arranged on the inner wall of the annular frame 184, and the other end is arranged on the circumferential surface of the rotating rod 185. The clockwork spring can drive the rotating rod 185 to reset. The limiting rod 186 is in contact with the limit frame 10, and the top of the limit rod 186 is arranged as an inclined surface. The inclined surface on the top of the limit rod 186 can ensure that the limit rod 186 will not hinder the limit frame 10 from moving downward and resetting.

[0030] When the present embodiment is working, the placement plate 14 moves toward the direction close to the small electric valve 4, driving the placement rod 15 to move; the placement rod 15 moves toward the direction close to the small electric valve 4, contacts the sealing plate 173 and squeezes the sealing plate 173; the sealing plate 173 is squeezed by the placement rod 15 and moves toward the direction close to the small electric valve 4; the movement of the sealing plate 173 drives the movement of the arc panel 174; the arc panel 174 moves and contacts the connecting pipe 3 and cooperates with the support plate 175 to clamp the connecting pipe 3; the connecting pipe 3 is clamped so that the connection between the connecting pipe 3 and the main cylinder body 1 will not be pulled or bent; at the same time, the sealing plate 173 moves toward the direction close to the small electric valve 4, contacts the detection frame 171 and seals the detection frame 171; the sealing plate 173 seals the detection frame 171. After sealing, if leakage occurs at the connection between the main cylinder body 1 and the connecting pipe 3, the leaked hydraulic oil will fill the inside of the detection frame 171, and the hydraulic oil filling the inside of the detection frame 171 will squeeze the detection plate 176. The detection plate 176 is squeezed by the leaking hydraulic oil and moves toward the small electric valve 4. The detection plate 176 moves toward the small electric valve 4 and drives the T-shaped rod 177 to move. The movement of the T-shaped rod 177 pulls the No. 3 spring. The No. 3 spring is deformed and accumulates force due to the pulling of the T-shaped rod 177. At the same time, the T-shaped rod 177 moves toward the small electric valve 4 to press the control button 178. The control button 178 is pressed by the T-shaped rod 177 to drive the small electric valve 4 to close and stop the oil supply, thereby preventing further leakage of the hydraulic oil.

[0031] The sealing plate 173 moves toward the direction close to the small electric valve 4, contacts the protection rod 182 and squeezes the protection rod 182. The protection rod 182 is squeezed by the sealing plate 173 and moves away from the placement frame 5. The protection rod 182 moves in the direction away from the placement frame 5 to squeeze the liquid inside the protection tube 181. The liquid inside the protection tube 181 is squeezed by the protection rod 182 and moves toward the direction close to the limit frame 10. The liquid inside the protection tube 181 moves toward the direction close to the limit frame 10 and squeezes the annular frame 184. The annular frame 184 is squeezed by the liquid inside the protection tube 181 and moves toward the direction close to the limit frame 10. The annular frame 184 moves toward the direction close to the limit frame 10 to pull the No. 4 spring. The No. 4 spring is pulled by the annular frame 184 to deform and accumulate force. At the same time, the annular frame 184 moves toward the limit frame 10. The movement of the frame 10 in the direction drives the rotating rod 185 to move, and the movement of the rotating rod 185 drives the limiting rod 186 to move. The limiting rod 186 moves in the direction close to the U-shaped rod 9 and contacts the limit frame 10 to limit the limit frame 10 and lock the limit frame 10. The locking of the limit frame 10 by the limiting rod 186 can prevent the displacement sensor 6 from accidentally loosening during operation. Before calibrating the displacement sensor 6, manually rotate the limiting rod 186 to rotate it. The limiting rod 186 can release the limit on the limit frame 10 by rotating it. When the limit frame 10 moves downward to reset, the limit frame 10 moves downward to contact the inclined surface at the top of the limiting rod 186 and squeezes the limiting rod 186. The limiting rod 186 is squeezed by the limit frame 10 and rotates to the right. After the limit frame 10 is completely reset, the limiting rod 186 rotates to the left under the elastic force of the clockwork spring to reset.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A main and auxiliary oil cylinder capable of automatic leveling, comprising a main cylinder body and an auxiliary cylinder body, characterized in that: Also included are detection components; The main cylinder body is provided with an A oil port on the circumferential surface, the main cylinder body is provided with a B oil pipe oil port on the circumferential surface, the auxiliary cylinder body is provided with a C oil port on the circumferential surface, the auxiliary cylinder body is provided with a D oil port on the circumferential surface, a connecting pipe is provided between the main cylinder body and the auxiliary cylinder body, a small electric valve is provided on the circumferential surface of the main cylinder body, a placement frame is fixedly installed on the circumferential surface of the main cylinder body, a displacement sensor is provided inside the placement frame, a mounting groove is provided on the top of the displacement sensor, and a square groove is provided on the front side of the displacement sensor; Wherein, the detection assembly includes a U-shaped rod, a limit frame, a U-shaped plate, an L-shaped plate, a deceleration hole, a placement plate, a placement rod and a curved plate, the U-shaped rod is fixedly mounted on the top of the placement frame, the limit frame is slidably mounted on the circumferential surface of the U-shaped rod, the U-shaped plate is fixedly mounted on the top of the limit frame, the L-shaped plate slides through the top of the placement frame, the deceleration hole is opened on the left side of the placement frame, the placement plate is slidably mounted on the inner wall of the placement frame, the placement rod is fixedly mounted on the left side of the placement plate, the curved plate is fixedly mounted on the circumferential surface of the placement rod, and a control button is fixedly mounted on the circumferential surface of the small electric valve, and the control button is electrically connected to the small electric valve; Among them, the circumferential surface of the main cylinder body is provided with a protection component for preventing the connecting pipe from being bent at will, and the circumferential surface of the main cylinder body is provided with a protection component.

2. The main and auxiliary oil cylinders capable of automatic leveling according to claim 1 are characterized in that: The limiting frame passes through the top of the placement frame, the bottom of the limiting frame contacts the bottom of the inner wall of the installation groove, and a No. 1 spring is arranged between the limiting frame and the placement frame.

3. The main and auxiliary oil cylinders capable of automatic leveling according to claim 2 are characterized in that: The L-shaped plate contacts the inner wall of the square groove, the L-shaped plate contacts the U-shaped plate, the curved plate is elastic, and a No. 2 spring is arranged between the placement plate and the placement frame.

4. The main and auxiliary oil cylinders capable of automatic leveling according to claim 3 are characterized in that: The protection assembly includes a detection frame, an elastic telescopic block, a sealing plate, an arc panel, a support plate, a detection plate and a T-shaped rod. The detection frame is fixedly installed on the circumferential surface of the main cylinder body, the elastic telescopic block is fixedly installed on the top of the inner wall of the detection frame, the sealing plate is fixedly installed on the free end of the elastic telescopic block, the arc panel is fixedly installed on the left side of the sealing plate, the support plate is fixedly installed on the top of the detection frame, the detection plate is slidably installed on the inner wall of the detection frame, and the T-shaped rod is fixedly installed on the left side of the detection plate.

5. The main and auxiliary oil cylinders capable of automatic leveling according to claim 4 are characterized in that: The support plate is in contact with the arc plate, a No. 3 spring is arranged between the T-shaped rod and the detection frame, and the arc plate is in contact with the connecting pipe.

6. The main and auxiliary oil cylinders capable of automatic leveling according to claim 5 are characterized in that: The T-shaped rod passes through the inner and outer walls of the detection frame, the placement rod contacts the sealing plate, and the T-shaped rod contacts the control button.

7. The main and auxiliary oil cylinders capable of automatic leveling according to claim 6 are characterized in that: The protection assembly includes a protection tube, a protection rod, a protection ring, an annular frame, a rotating rod, a limiting rod and a movable groove. The protection tube is fixedly passed through the top of the detection frame, the protection rod is slidably installed on the inner wall of the protection tube, the protection ring is fixedly installed on the inner wall of the protection tube, the annular frame is slidably installed on the inner wall of the protection tube, the rotating rod is rotatably installed on the inner wall of the annular frame, the limiting rod is fixedly installed on the circumferential surface of the rotating rod, the movable groove is opened on a side of the protection tube close to the limit frame, and liquid is arranged inside the protection tube.

8. The main and auxiliary oil cylinders capable of automatic leveling according to claim 7 are characterized in that: A No. 4 spring is arranged between the annular frame and the protective ring, a spring spring is arranged between the rotating rod and the limiting rod, and the limiting rod is in contact with the limiting frame.

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