Anti-collision hydraulic cylinder

Abstract

The application discloses an anti-collision hydraulic oil cylinder and relates to the technical field of hydraulic oil cylinders.The hydraulic oil cylinder comprises a cylinder body, and a bottom cover is fixedly installed at the bottom end of the cylinder body.The hydraulic oil is delivered into the cylinder body through an oil inlet A, so that the hydraulic oil drives the push rod to move outward by sliding the piston A in the cylinder body, thereby converting the liquid pressure into linear mechanical force.When the piston A moves in the cylinder body, the hydraulic oil above the piston C is extruded and discharged through the oil inlet B, at this time, the hydraulic oil provides extrusion force to the V-shaped notch of the end cover sealing ring, so that the end cover sealing ring is tightly attached to the surface of the push rod, thereby preventing the hydraulic oil from seeping out, and as the push rod continuously extends, the top block and the side block A are driven away from the guard plate, the guard plate is subjected to the tension of the tension spring through the side block B, so that the side block B slides in the supporting rod, thereby avoiding the problem that the push rod is damaged due to collision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic oil cylinders, in particular to a collision-proof hydraulic oil cylinder. BACKGROUND

[0002] A hydraulic oil cylinder is a device that uses hydraulic energy to achieve mechanical movement, widely used in various engineering and industrial machinery, and its basic function is to convert liquid pressure into linear mechanical force to drive the load.

[0003] As disclosed in CN115234541B, "a hydraulic oil cylinder with high buffering performance", including cylinder, buffer mechanism, the both ends of the cylinder are fixedly installed with cylinder cover for sealing the oil in the cylinder, the buffer mechanism includes first oil hole, second oil hole, third oil hole opened in the cylinder cover for oil backflow. The present application can make the first sealing ring and the second sealing ring close to each other under the thrust of the oil pressure when the shoulder approaches one cylinder cover, and tightly contact the outer wall of the shoulder, reducing the amount of oil entering from the first oil hole, when the shoulder no longer moves, the first sealing ring and the second sealing ring return to the original position under the elastic force of the elastic block, no longer in contact with the outer wall of the shoulder, thereby reducing the contact time of the first sealing ring and the second sealing ring with the shoulder, prolonging the service life of the first sealing ring and the second sealing ring.

[0004] However, in the prior art, although the hydraulic oil cylinder reduces the contact time of the first sealing ring and the second sealing ring with the shoulder, prolongs the service life of the first sealing ring and the second sealing ring, but it lacks in the aspect of hydraulic oil cylinder collision prevention. Since the hydraulic oil cylinder does not have a collision-proof structure, the hydraulic oil cylinder will inevitably be subjected to collision with parts or other workpieces or equipment in the processing of the factory workshop, causing the push rod in the hydraulic oil cylinder to be damaged by knocking. If the push rod itself is deformed, it may cause the cooperation between the push rod and the cylinder body to be no longer tight, increasing the risk of leakage. Knocking not only affects the push rod, but also may cause damage to the cylinder body, forming cracks or depressions, thereby causing oil leakage. SUMMARY

[0005] The present application aims to provide a collision-proof hydraulic oil cylinder to solve the problem of the hydraulic oil cylinder being damaged by the push rod being knocked during work, thereby causing the cooperation between the push rod and the cylinder body to be no longer tight, increasing the risk of leakage.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A kind of anti-collision hydraulic cylinder, including cylinder body, bottom end of the cylinder body is fixedly installed with bottom cover, top end of the cylinder body is fixedly installed with top cover, the inside of the bottom cover is equipped with oil inlet A, the inside of the top cover is equipped with oil inlet B, the inside bottom end of the cylinder body is fixedly installed with ring pad, the inside of the cylinder body is provided with push rod, the bottom end of the push rod is fixedly installed with piston A, the surface of the piston A is equipped with piston seal ring, the bottom surface of the piston A is fixedly installed with bottom block, the inside of the top cover is fixedly installed with end cover seal ring, the top end of the push rod is fixedly installed with top block, the side surface of the top block is fixedly installed with side block A, the surface of the top cover is fixedly installed with support rod, the outer surface of the cylinder body is provided with guard plate, the surface of the guard plate is fixedly installed with side block B, the inside of the support rod is provided with tension spring, the top surface of the bottom cover is equipped with slot A.

[0007] Preferably, the support rod is fixedly connected between the bottom cover, the piston A is slidably connected between the cylinder body, the bottom block is slidably connected between the bottom cover, the bottom block is slidably connected between the ring pad, and the materials of the ring pad and the piston seal ring are both natural rubber.

[0008] Preferably, the piston seal ring is slidably connected between the cylinder body, the push rod is slidably connected between the top cover, the push rod is slidably connected between the end cover seal ring, the end cover seal ring is in the shape of inverted V, and the material of the end cover seal ring is natural rubber.

[0009] Preferably, the guard plate is slidably connected between the top cover, the guard plate is slidably connected between the slot A, the side block B is slidably connected between the support rod, one end of the tension spring is connected to the inner surface of the support rod, and the other end of the tension spring is connected to the surface of the side block B.

[0010] Preferably, the top surface of the top block is equipped with slot B, the top surface of the top block is provided with connector A, the bottom surface of the connector is fixedly installed with plug A, the inside of the top block is slidably connected with slide rod A, one end of the slide rod A is fixedly installed with fixed block, and the other end of the slide rod A is fixedly installed with pull rod, the surface of the slide rod A is equipped with spring A, the side surface of the top cover is provided with connector A, the side surface of the bottom cover is provided with connector B, the surface of the connector A is provided with oil pipe A, and the surface of the connector C is provided with oil pipe B.

[0011] Preferably, the oil pipe A is connected with the connector B through threads, the oil pipe B is connected with the connector C through threads, the connector A is through with the oil inlet B, and the connector B is through with the oil inlet A.

[0012] Preferably, the sliding connection is between the plug A and the slot B, the sliding connection is between the fixed block and the plug A, one end of the spring A is connected to the inner surface of the top block, and the other end is connected to the surface of the fixed block.

[0013] Preferably, the outer surface of the cylinder is provided with a shell, the inner surface of the shell is fixedly installed with a fixed plate, the side surface of the top cover and the bottom cover is fixedly installed with a side block C, the surface of the side block C is provided with a fixed groove, the inside of the fixed plate is slidably connected with a sliding rod B, the surface of the sliding rod B is sleeved with a spring B, one end of the sliding rod B is fixedly installed with a plug B, and the surface of the plug B is fixedly installed with a knob.

[0014] Preferably, the number of the shell and the side block C is two groups, and the two groups of the shell and the side block C are symmetrically distributed on the two sides of the bottom cover and the top cover, the sliding connection is between the fixed plate and the side block C, and the sliding connection is between the plug B and the fixed groove.

[0015] Preferably, one end of the spring B is connected to the surface of the plug B, and the other end is connected to the inner surface of the fixed plate, and the sliding connection is between the knob and the shell.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] 1、In the present application, the hydraulic oil is delivered into the cylinder through the oil inlet A, so as to drive the push rod to move outward by pushing the piston A to slide in the cylinder, thereby converting the liquid pressure into linear mechanical force, and when the piston A moves in the cylinder, the hydraulic oil above the piston C is extruded and discharged through the oil inlet B, at this time the hydraulic oil provides extrusion force to the V-shaped notch of the end cover sealing ring, so as to make the end cover sealing ring closely adhere to the surface of the push rod, thereby preventing the leakage of hydraulic oil, and as the push rod continuously extends, the top block and the side block A are driven away from the guard plate, and the guard plate is subjected to the tension of the tension spring through the side block B, so that the side block B slides in the support rod, thereby avoiding the problem that the push rod is damaged due to collision.

[0018] 2、The present application, by pulling the pull rod, thereby by pull rod sliding slide rod A in the inside of the top block, slide rod A will drive the fixed block in the inside of the top block sliding, after the fixed block from the inside of the plug A sliding out can be connected to the head A outside, the plug A will be connected to the head A from the plug B sliding out, again different models of the connector A through its bottom plug A inserted into the plug B, after the insertion is completed, the pull rod is released at this time, the fixed block will be affected by the spring A elastic force and in the inside of the top block sliding, after the fixed block is inserted into the plug A can complete the fixing of the connector A, avoid the need to disassemble the connector A when the need to change, the need for staff to help other special disassembly tool, thereby improving the efficiency of the replacement of the connector A, when the need to disassemble the oil pipe A and oil pipe B, only need to rotate the nut on the oil pipe A and oil pipe B one end, after the nut and connector B and connector C turn off can be connected to the head A and oil pipe B disassembly, thereby facilitating the effect of disassembly and replacement of the oil pipe A and oil pipe B.

[0019] 3、The present application, by poking the dial block, make dial block in the outer surface of the shell sliding, and the dial block will drive the plug B moves, after the plug B sliding to the inside of the fixed plate can be inserted into the shell through the fixed plate inside the side block C, after the fixed plate is inserted into the side block C can be released dial block, at this time the plug B will be affected by the spring B elastic force and in the inside of the fixed plate sliding out, after the plug B is inserted into the inside of the side block B can be fixed on the outer surface of the cylinder body, thereby avoiding the oil pipe A, oil pipe B or cylinder body is collided or extrusion lead to cylinder body damage occurs. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure diagram of the anti-collision type hydraulic oil cylinder of the application;

[0021] Figure 2 It is the longitudinal section view of the cylinder body in the anti-collision type hydraulic oil cylinder of the application;

[0022] Figure 3 It is the anti-collision type hydraulic oil cylinder of the application Figure 2 Enlarged view of A;

[0023] Figure 4 It is the explosion structure diagram of the shell and the guard plate in the anti-collision type hydraulic oil cylinder of the application;

[0024] Figure 5 It is the anti-collision type hydraulic oil cylinder of the application Figure 4 Enlarged view of B;

[0025] Figure 6 It is the explosion structure diagram of the shell, pull rod, connector A, oil pipe A and oil pipe B in the anti-collision type hydraulic oil cylinder of the application;

[0026] Figure 7 For the invention of a kind to prevent collision type hydraulic cylinder Figure 6 Enlarged view of C in the middle;

[0027] Figure 8 For the invention of a kind to prevent collision type hydraulic cylinder in the shell and the explosion structure schematic diagram of plug B at;

[0028] Figure 9 For the invention of a kind to prevent collision type hydraulic cylinder Figure 8 Enlarged view of D in the middle.

[0029] In the figure: 100, cylinder body; 101, bottom cover; 102, top cover; 103, oil inlet A; 104, oil inlet B; 105, ring pad; 106, push rod; 107, piston A; 108, piston seal ring; 109, bottom block; 110, end cover seal ring; 111, top block; 112, side block A; 113, support rod; 114, guard plate; 115, side block B; 116, tension spring; 117, slot A; 200, slot B; 201, plug A; 202, connector A; 203, slide bar A; 204, fixed block; 205, spring A; 206, pull rod; 207, connector B; 208, connector C; 209, oil pipe A; 210, oil pipe B; 300, shell; 301, side block C; 302, fixed groove; 303, fixed plate; 304, slide bar B; 305, spring B; 306, plug B; 307, push block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment one: refer to Figures 1-5The application discloses an anti-collision hydraulic cylinder, which comprises a cylinder body 100, a bottom cover 101 fixedly arranged at the bottom end of the cylinder body 100, a top cover 102 fixedly arranged at the top end of the cylinder body 100, an oil inlet A 103 arranged in the bottom cover 101, an oil inlet B 104 arranged in the top cover 102, a ring gasket 105 fixedly arranged at the bottom end of the cylinder body 100, a push rod 106 arranged in the cylinder body 100, a piston A 107 fixedly arranged at the bottom end of the push rod 106, a piston sealing ring 108 arranged on the surface of the piston A 107, a bottom block 109 fixedly arranged at the bottom surface of the piston A 107, an end cover sealing ring 110 fixedly arranged in the top cover 102, a top block 111 fixedly arranged at the top end of the push rod 106, a side block A 112 fixedly arranged at the side surface of the top block 111, a supporting rod 113 fixedly arranged on the surface of the top cover 102, a protective plate 114 arranged on the outer surface of the cylinder body 100, a side block B 115 fixedly arranged on the surface of the protective plate 114, a tension spring 116 arranged in the supporting rod 113, a slot A 117 arranged on the top surface of the bottom cover 101, and a sliding connection between the piston A 107 and the cylinder body 100, a sliding connection between the bottom block 109 and the bottom cover 101, a sliding connection between the bottom block 109 and the ring gasket 105, a sliding connection between the piston sealing ring 108 and the cylinder body 100, a sliding connection between the push rod 106 and the top cover 102, a sliding connection between the push rod 106 and the end cover sealing ring 110, a V-shaped slot arranged in the end cover sealing ring 110, and a natural rubber material of the end cover sealing ring 110.

[0032] In the embodiment, the hydraulic oil is delivered into the cylinder body 100 through the oil inlet A 103, so that the push rod 106 is driven to move outward by sliding the piston A 107 in the cylinder body 100, thereby converting the liquid pressure into linear mechanical force, and when the piston A 107 moves in the cylinder body 100, the hydraulic oil above the piston C is extruded and discharged through the oil inlet B 104, at this time, the hydraulic oil provides extrusion force to the V-shaped slot of the end cover sealing ring 110, so that the end cover sealing ring 110 is tightly attached to the surface of the push rod 106, thereby preventing the hydraulic oil from leaking out.

[0033] With the continuous extension of the push rod 106, the top block 111 and the side block A 112 are driven away from the guard plate 114, and the guard plate 114 is subjected to the tension of the tension spring 116, so that the side block B 115 slides in the inside of the supporting rod 113, thereby driving the sliding plate to slide outwards in the inside of the top cover 102 until the top end of the guard plate 114 is attached to the bottom surface of the side block A 112, thereby avoiding the problem that the push rod 106 is damaged due to collision;

[0034] The hydraulic oil is delivered to the inside of the cylinder body 100 through the oil inlet B 104, and the hydraulic oil will extrude the piston C, thereby driving the push rod 106 to slide into the cylinder body 100 through the piston C, and the piston C will drive the hydraulic oil at the bottom of the piston C to be discharged through the oil inlet A 103 through the piston sealing ring 108, until the bottom block 109 contacts the ring pad 105, at this time the piston C will also drive the push rod 106 to slide in the inside of the cylinder body 100 and the top cover 102, thereby driving the top block 111 and the side block A 112 to move to the cylinder body 100, at this time the side block A 112 will be attached to the top end of the guard plate 114, and drive the guard plate 114 to move to the inside of the top cover 102, until the guard plate 114 is inserted into the slot A 117.

[0035] Embodiment two: Figures 6-7 As shown, the top surface of the top block 111 is provided with a slot B 200, the top surface of the top block 111 is provided with a connecting head A 202, the bottom surface of the connecting head is fixedly installed with a plug A 201, the inside of the top block 111 is slidably connected with a sliding rod A 203, one end of the sliding rod A 203 is fixedly installed with a fixed block 204, the other end is fixedly installed with a pull rod 206, the surface of the sliding rod A 203 is sleeved with a spring A 205, the side surface of the top cover 102 is provided with a connecting head A 202, the side surface of the bottom cover 101 is provided with a connecting head B 207, the surface of the connecting head A 202 is provided with an oil delivery pipe A 209, the surface of the connecting head C 208 is provided with an oil delivery pipe B 210, the oil delivery pipe A 209 and the connecting head B 207 are connected through threads, the oil delivery pipe B 210 and the connecting head C 208 are connected through threads, the connecting head A 202 and the oil inlet B 104 are connected through threads, the connecting head B 207 and the oil inlet A 103 are connected through threads, the plug A 201 and the slot B 200 are slidably connected, the fixed block 204 and the plug A 201 are slidably connected, one end of the spring A 205 is connected to the inner surface of the top block 111, and the other end is connected to the surface of the fixed block 204.

[0036] In this embodiment, by pulling the pull rod 206, the slide rod A 203 is driven to slide outward in the inside of the top block 111, and the fixed block 204 is driven to slide in the inside of the top block 111. After the fixed block 204 slides out of the inside of the plug block A 201, the connector A 202 can be pulled out, and the plug block A 201 is driven to slide out of the insertion slot B 200. Different models of connector A 202 are inserted into the insertion slot B 200 through the plug block A 201 at the bottom of the connector A 202. After the insertion is completed, the pull rod 206 is loosened. At this time, the fixed block 204 is driven to slide in the inside of the top block 111 by the elastic force of the spring A 205. After the fixed block 204 is inserted into the plug block A 201, the fixing of the connector A 202 is completed, avoiding the need for workers to use other special tools to disassemble and replace the connector A 202, thereby improving the efficiency of replacing the connector A 202.

[0037] When the oil pipes A 209 and B 210 need to be disassembled, only the nuts on one end of the oil pipes A 209 and B 210 need to be rotated. After the nuts are turned away from the connector B 207 and the connector C 208, the oil pipes A 209 and B 210 can be disassembled, thereby facilitating the disassembly and replacement of the oil pipes A 209 and B 210.

[0038] Embodiment three: according to Figures 8-9 As shown in the figure, the outer surface of the cylinder body 100 is provided with an outer shell 300, the inner surface of the outer shell 300 is fixedly installed with a fixed plate 303, the side surface of the top cover 102 and the bottom cover 101 is fixedly installed with a side block C 301, the surface of the side block C 301 is provided with a fixed groove 302, the inside of the fixed plate 303 is slidably connected with a slide rod B 304, the surface of the slide rod B 304 is sleeved with a spring B 305, one end of the slide rod B 304 is fixedly installed with a plug block B 306, the surface of the plug block B 306 is fixedly installed with a push block 307, the number of the outer shell 300 and the side block C 301 is two, the two outer shell 300 and the side block C 301 are symmetrically distributed on the two sides of the bottom cover 101 and the top cover 102, the fixed plate 303 and the side block C 301 are slidably connected, the plug block B 306 and the fixed groove 302 are slidably connected, one end of the spring B 305 is connected to the surface of the plug block B 306, and the other end is connected to the inner surface of the fixed plate 303, the push block 307 and the outer shell 300 are slidably connected.

[0039] In this embodiment, by turning the dial 307, the dial 307 is slid on the outer surface of the shell 300, and the dial 307 moves the plug B306 when sliding. After the plug B306 slides to the inside of the fixed plate 303, the shell 300 can be inserted into the inside of the side block C301 through the fixed plate 303. After the fixed plate 303 is inserted into the side block C301, the dial 307 can be released. At this time, the plug B306 will slide outward in the inside of the fixed plate 303 under the elastic force of the spring B305. After the plug B306 is inserted into the inside of the side block B115, the shell 300 can be fixed on the outer surface of the cylinder body 100, thereby avoiding the situation that the cylinder body 100 is damaged due to collision or extrusion of the oil conveying pipe A209, the oil conveying pipe B210 or the cylinder body 100;

[0040] By turning the dial 307, the dial 307 is slid on the surface of the shell 300, and the dial 307 moves the plug B306 in the inside of the fixed plate 303 when sliding. After the plug B306 slides out of the inside of the side block C301, the shell 300 can be pulled out. The shell 300 will slide out of the inside of the side block C301 with the fixed plate 303, thereby completing the disassembly of the shell 300, avoiding the situation that the staff needs to use disassembly tools when disassembling the shell 300, and also achieving the effect of facilitating the maintenance and repair of the cylinder body 100.

[0041] The use method and working principle of the device are as follows: when the top block 111 needs to be extended out of the cylinder body 100, hydraulic oil is only needed to be conveyed into the cylinder body 100 through the oil inlet A103, so as to drive the push rod 106 to move outward by pushing the piston A107 to slide in the cylinder body 100, thereby converting the hydraulic pressure into linear mechanical force. When the piston A107 moves in the cylinder body 100, the hydraulic oil above the piston C is extruded and discharged through the oil inlet B104. At this time, the hydraulic oil provides extrusion force to the V-shaped notch of the end cover sealing ring 110, so as to tightly adhere the end cover sealing ring 110 to the surface of the push rod 106, thereby preventing the leakage of hydraulic oil;

[0042] With the continuous extension of the push rod 106, the top block 111 and the side block A112 are driven away from the guard plate 114. The guard plate 114 is driven to slide in the support rod 113 by the tension of the tension spring 116, so as to drive the sliding plate to slide outward in the top cover 102, until the top end of the guard plate 114 adheres to the bottom surface of the side block A112, thereby avoiding the problem that the push rod 106 is damaged due to collision;

[0043] When it is needed to retract the top block 111 into the cylinder body 100, only need to deliver hydraulic oil into the cylinder body 100 through the oil inlet B104, the hydraulic oil will extrude the piston C, so as to drive the push rod 106 to slide into the cylinder body 100 through the piston C, and the piston C will drive the hydraulic oil at the bottom of the piston C to be discharged through the oil inlet A103 by the piston sealing ring 108, until the bottom block 109 contacts the ring pad 105, at this time the piston C will also drive the push rod 106 to slide in the cylinder body 100 and the inside of the top cover 102, so as to drive the top block 111 and the side block A112 to move to the cylinder body 100, at this time the side block A112 will be attached to the top end of the guard plate 114, and drive the guard plate 114 to move into the inside of the top cover 102, until the guard plate 114 is inserted into the slot A117;

[0044] When it is needed to disassemble the connector A202, only need to pull the pull rod 206, so as to drive the slide rod A203 to slide outwards in the inside of the top block 111 through the pull rod 206, the slide rod A203 will drive the fixed block 204 to slide in the inside of the top block 111, after the fixed block 204 slides out from the inside of the plug block A201, the connector A202 can be pulled out, the connector A202 will drive the plug block A201 to slide out from the slot B200, then insert the connector A202 of different models into the slot B200 through the plug block A201 at the bottom of the connector A202, after the insertion is completed, release the pull rod 206, at this time the fixed block 204 will slide in the inside of the top block 111 under the elastic force of the spring A205, after the fixed block 204 is inserted into the plug block A201, the fixing of the connector A202 is completed, avoiding the need for workers to use other special disassembly tools when disassembling and replacing the connector A202, thereby improving the efficiency of replacing the connector A202;

[0045] When it is needed to disassemble the oil delivery pipe A209 and the oil delivery pipe B210, only need to rotate the nut on one end of the oil delivery pipe A209 and the oil delivery pipe B210, after the nut is turned away from the connector B207 and the connector C208, the oil delivery pipe A209 and the oil delivery pipe B210 can be removed, thereby achieving the effect of facilitating the disassembly and replacement of the oil delivery pipe A209 and the oil delivery pipe B210;

[0046] When the shell 300 needs to be installed, the knob 307 is only needed to be pushed, so that the knob 307 slides on the outer surface of the shell 300, and the knob 307 drives the insertion block B 306 to move when sliding, and then the shell 300 is inserted into the inside of the side block C 301 through the fixed plate 303 after the insertion block B 306 slides to the inside of the fixed plate 303, and then the knob 307 is released after the fixed plate 303 is inserted into the side block C 301, at this time the insertion block B 306 is driven to slide outward in the inside of the fixed plate 303 by the elastic force of the spring B 305, and then the shell 300 is fixed on the outer surface of the cylinder body 100 after the insertion block B 306 is inserted into the inside of the side block B 115, so that the situation that the cylinder body 100 is damaged due to the collision or extrusion of the oil conveying pipe A 209, the oil conveying pipe B 210 or the cylinder body 100 is avoided;

[0047] When the shell 300 needs to be disassembled and the cylinder body 100 needs to be maintained and repaired, the knob 307 is only needed to be reversed, so that the knob 307 reverses on the surface of the shell 300, and the knob 307 drives the insertion block B 306 to slide in the inside of the fixed plate 303 when sliding, and then the shell 300 is pulled out after the insertion block B 306 slides out of the inside of the side block C 301, and the fixed plate 303 is pulled out from the inside of the side block C 301 by the shell 300, so that the disassembly of the shell 300 is completed, the situation that the workers need to use disassembly tools when disassembling the shell 300 is avoided, and the effect of facilitating the maintenance and repair of the cylinder body 100 is achieved.

[0048] Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or equivalently replace part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A collision-resistant hydraulic cylinder, comprising a cylinder body (100), characterized in that: A bottom cover (101) is fixedly installed at the bottom end of the cylinder body (100), and a top cover (102) is fixedly installed at the top end of the cylinder body (100). An oil inlet A (103) is opened inside the bottom cover (101), and an oil inlet B (104) is opened inside the top cover (102). A gasket (105) is fixedly installed at the bottom end of the cylinder body (100). A push rod (106) is provided inside the cylinder body (100). A piston A (107) is fixedly installed at the bottom end of the push rod (106). A piston sealing ring (108) is fitted on the surface of the piston A (107). The bottom surface of the piston A (107) is... A bottom block (109) is fixedly installed. An end cap sealing ring (110) is fixedly installed inside the top cover (102). A top block (111) is fixedly installed at the top of the push rod (106). A side block A (112) is fixedly installed on the side of the top block (111). A support rod (113) is fixedly installed on the surface of the top cover (102). A guard plate (114) is provided on the outer surface of the cylinder body (100). A side block B (115) is fixedly installed on the surface of the guard plate (114). A tension spring (116) is provided inside the support rod (113). A slot A (117) is opened on the top surface of the bottom cover (101). The guard plate (114) is slidably connected to the top cover (102), the guard plate (114) is slidably connected to the slot A (117), the side block B (115) is slidably connected to the support rod (113), and one end of the tension spring (116) is connected to the inner surface of the support rod (113), and the other end is connected to the surface of the side block B (115). The outer surface of the cylinder body (100) is provided with a shell (300), and a fixing plate (303) is fixedly installed on the inner surface of the shell (300). Side blocks C (301) are fixedly installed on the sides of the top cover (102) and the bottom cover (101). A fixing groove (302) is opened on the surface of the side block C (301). A slide rod B (304) is slidably connected inside the fixing plate (303). A spring B (305) is sleeved on the surface of the slide rod B (304). An insert block B (306) is fixedly installed at one end of the slide rod B (304). A pry block (307) is fixedly installed on the surface of the insert block B (306). The number of the outer shell (300) and the side block C (301) are both two sets. The two sets of outer shell (300) and side block C (301) are symmetrically distributed on both sides of the bottom cover (101) and the top cover (102). The fixing plate (303) is slidably connected to the side block C (301), and the insert block B (306) is slidably connected to the fixing groove (302). One end of the spring B (305) is connected to the surface of the insert block B (306), and the other end is connected to the inner surface of the fixing plate (303). The toggle block (307) is slidably connected to the outer shell (300).

2. The anti-collision hydraulic cylinder according to claim 1, characterized in that: The support rod (113) is fixedly connected to the bottom cover (101), the piston A (107) is slidably connected to the cylinder (100), the bottom block (109) is slidably connected to the bottom cover (101), the bottom block (109) is slidably connected to the gasket (105), and the gasket (105) and the piston sealing ring (108) are both made of natural rubber.

3. The anti-collision hydraulic cylinder according to claim 1, characterized in that: The piston seal ring (108) is slidably connected to the cylinder body (100), the push rod (106) is slidably connected to the top cover (102), the push rod (106) is slidably connected to the end cover seal ring (110), the end cover seal ring (110) is inverted V shape, and the end cover seal ring (110) is made of natural rubber.

4. The anti-collision hydraulic cylinder according to claim 1, characterized in that: The top surface of the top block (111) is provided with a slot B (200), the top surface of the top block (111) is provided with a connector A (202), the bottom surface of the connector is fixedly installed with a plug A (201), the top block (111) is slidably connected with a slide rod A (203), one end of the slide rod A (203) is fixedly installed with a fixing block (204), and the other end is fixedly installed with a pull rod (206). The surface of the slide rod A (203) is fitted with a spring A (205), the side of the top cover (102) is provided with a connector B (207), the side of the bottom cover (101) is provided with a connector C (208), the surface of the connector B (207) is provided with an oil pipe A (209), and the surface of the connector C (208) is provided with an oil pipe B (210).

5. The anti-collision hydraulic cylinder according to claim 4, characterized in that: The oil supply pipe A (209) is connected to the connector B (207) by a thread, the oil supply pipe B (210) is connected to the connector C (208) by a thread, the connector B (207) is connected to the oil inlet B (104), and the connector C (208) is connected to the oil inlet A (103).

6. The anti-collision hydraulic cylinder according to claim 4, characterized in that: The insert A (201) is slidably connected to the slot B (200), the fixing block (204) is slidably connected to the insert A (201), one end of the spring A (205) is connected to the inner surface of the top block (111), and the other end is connected to the surface of the fixing block (204).

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