A shock absorbing oil cylinder

Abstract

The utility model provides a kind of shock-absorbing oil cylinder, belong to oil cylinder field, it is by oil cylinder body, screw cap, piston mechanism, damping mechanism, sealing mechanism, reinforcing mechanism and hinged mechanism constitute, locking ring and limit ring cooperation in the scheme can be fixed in piston ring on piston rod, locking ring is simultaneously detached from piston rod, so that piston ring can also be detached from piston rod, so that piston ring can be replaced, since piston ring is slidably connected in oil cylinder body, so that piston ring can be removed from oil cylinder body, shock-absorbing bump and shock absorber collision can be damped, prevent piston rod contraction movement and the bottom of oil cylinder body collision, to realize the damping of piston rod, the recess is used for connecting sealing ring, by sealing ring is clamped in recess, can improve the sealing property of oil cylinder body and screw cap connection, to prevent oil leakage in the interior of oil cylinder body.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic cylinders, specifically relating to a shock-absorbing hydraulic cylinder. Background Technology

[0002] A hydraulic cylinder is an actuator that converts hydraulic energy into mechanical energy. It drives a piston or plunger to perform linear reciprocating motion or oscillation through pressure changes within a sealed oil chamber.

[0003] The authorized publication number "CN217539168U" describes "a shock-absorbing hydraulic cylinder, including a hydraulic cylinder body and a mounting cover. The inner side of the hydraulic cylinder body is provided with a sealing arc groove. A mounting cover is provided on one side of the hydraulic cylinder body, and a first sealing block matching the inner wall of the hydraulic cylinder body is installed on one side of the mounting cover. The top and bottom of the inside of the hydraulic cylinder body are provided with a moving groove, and a fixed groove is provided on the inner wall of the hydraulic cylinder body on one side of the moving groove. The inner side of the mounting cover is provided with a limit groove, and the top and bottom of the inside of the mounting cover are provided with a movable groove."

[0004] The aforementioned patents offer excellent shock absorption and cushioning, but the movable plugs are not easily disassembled and replaced. Utility Model Content

[0005] The purpose of this invention is to provide a shock-absorbing hydraulic cylinder, which aims to solve the problem of difficulty in disassembling and replacing the movable piston in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A shock-absorbing hydraulic cylinder includes:

[0008] Hydraulic cylinder body;

[0009] A threaded cap, which is threadedly connected to the cylinder body of the hydraulic cylinder;

[0010] The piston mechanism is located on the cylinder body and the threaded cover;

[0011] The shock absorption mechanism is located on the threaded cover and piston mechanism;

[0012] A sealing mechanism is provided on the cylinder body of the hydraulic cylinder, and the sealing mechanism is used to improve the sealing performance of the connection between the cylinder body and the threaded cover.

[0013] The reinforcing mechanism is located on the cylinder body and the threaded cover;

[0014] The articulation mechanism is located on the cylinder body and piston mechanism of the hydraulic cylinder.

[0015] In a preferred embodiment of this utility model, the piston mechanism includes a piston rod, a locking ring, a piston ring, and a limiting ring. The piston rod is movably inserted into the threaded cap and the cylinder body, with one end of the piston rod extending into the cylinder body. The limiting ring is fixedly connected to the piston rod and is located within the cylinder body. The locking ring is threadedly connected to the piston rod. The piston ring is movably sleeved on the piston rod and is located between the locking ring and the limiting ring. The piston ring is slidably connected within the cylinder body.

[0016] As a preferred embodiment of this utility model, the shock absorption mechanism includes a threaded cover, shock absorption protrusions, mounting grooves, and shock absorbers. Multiple mounting grooves are provided, all located on the top of the threaded cover and evenly distributed. Multiple shock absorbers are provided, each fixedly connected to a mounting groove. A mounting ring is fixedly connected to a piston rod. Multiple shock absorption protrusions are provided, all fixedly connected to the bottom of the mounting ring, and each shock absorption protrusion is aligned with a shock absorber.

[0017] In a preferred embodiment of this utility model, the sealing mechanism includes a sealing ring and a groove, the groove being formed at the top of the cylinder body, and the sealing ring being engaged within the groove.

[0018] As a preferred embodiment of this utility model, the reinforcing mechanism includes long screws and nuts. There are four long screws, which are movably inserted into the cylinder body and the threaded cover, and the four long screws are evenly distributed. There are four nuts, each of which is threaded onto each long screw.

[0019] As a preferred embodiment of this utility model, the hinge mechanism includes a hinge ring A, a bearing, and a hinge ring B. The hinge ring A is fixedly connected to the piston rod, and the hinge ring B is fixedly connected to the cylinder body. Two bearings are provided, one of which is detachably connected to the hinge ring A, and the other bearing is detachably connected to the hinge ring B.

[0020] In a preferred embodiment of this utility model, one of the bearings is detachably connected to the hinge ring A by screws, and the other bearing is detachably connected to the hinge ring B by screws.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. In this solution, the locking ring and the limiting ring work together to fix the piston ring on the piston rod. At the same time, the locking ring can be removed from the piston rod, so that the piston ring can also be removed from the piston rod, allowing the piston ring to be replaced. Since the piston ring is slidably connected to the cylinder body, the piston ring can be moved out of the cylinder body.

[0023] 2. In this solution, shock absorption can be achieved by the collision between the shock-absorbing protrusion and the shock absorber, preventing the piston rod from colliding with the bottom of the cylinder body when it retracts and moves, thereby achieving shock absorption of the piston rod.

[0024] 3. In this design, the groove is used to connect the sealing ring. By having the sealing ring snap into the groove, the sealing performance of the connection between the cylinder body and the threaded cover can be improved, thereby preventing oil leakage from inside the cylinder body.

[0025] 4. In this solution, the use of long screws and nuts can improve the strength of the connection between the cylinder body and the threaded cover, ensuring that the threaded cover will not rotate after being threaded onto the cylinder body, and also improving the sealing performance of the connection between the cylinder body and the threaded cover.

[0026] 5. In this solution, the hinge ring A and hinge ring B can be hinged, and the bearing can reduce frictional resistance and improve operating efficiency. Since the bearing is detachably connected by screws, it is easy to disassemble and replace the bearing. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a cross-sectional view of the present invention;

[0030] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0032] Figure 5 This is an exploded view of the sealing ring of this utility model.

[0033] In the diagram: 1. Cylinder body; 2. Long screw; 3. Threaded cap; 4. Nut; 5. Mounting ring; 6. Piston rod; 7. Hinge ring A; 8. Bearing; 9. Hinge ring B; 10. Shock-absorbing protrusion; 11. Mounting groove; 12. Shock absorber; 13. Sealing ring; 14. Locking ring; 15. Piston ring; 16. Limiting ring; 17. Groove. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-5 The technical solution provided in this embodiment is as follows:

[0036] A shock-absorbing hydraulic cylinder comprises a cylinder body 1, a threaded cover 3, a piston mechanism, a shock-absorbing mechanism, a sealing mechanism, a reinforcing mechanism, and a hinge mechanism. The threaded cover 3 is threadedly connected to the cylinder body 1.

[0037] In a specific embodiment of this utility model, the threaded cover 3 is threadedly connected to the cylinder body 1 of the hydraulic cylinder, so that the threaded cover 3 can seal the cylinder body 1 of the hydraulic cylinder, and the threaded cover 3 is easy to install and disassemble.

[0038] Specifically, the piston mechanism is located on the cylinder body 1 and the threaded cover 3. The piston mechanism includes a piston rod 6, a locking ring 14, a piston ring 15, and a limiting ring 16. The piston rod 6 is movably inserted into the threaded cover 3 and the cylinder body 1, and one end of the piston rod 6 extends into the cylinder body 1. The limiting ring 16 is fixedly connected to the piston rod 6 and is located inside the cylinder body 1. The locking ring 14 is threadedly connected to the piston rod 6. The piston ring 15 is movably sleeved on the piston rod 6 and is located between the locking ring 14 and the limiting ring 16. The piston ring 15 is slidably connected inside the cylinder body 1.

[0039] In a specific embodiment of this utility model, the locking ring 14 and the limiting ring 16 cooperate to fix the piston ring 15 on the piston rod 6. At the same time, the locking ring 14 can be removed from the piston rod 6, so that the piston ring 15 can also be removed from the piston rod 6, allowing the piston ring 15 to be replaced. Since the piston ring 15 is slidably connected inside the cylinder body 1, the piston ring 15 can be moved out from inside the cylinder body 1.

[0040] Specifically, the shock absorption mechanism is located on the threaded cover 3 and the piston mechanism. The shock absorption mechanism includes the threaded cover 3, the shock absorption protrusion 10, the mounting groove 11, and the shock absorber 12. Multiple mounting grooves 11 are provided, and all of the multiple mounting grooves 11 are opened on the top of the threaded cover 3 and are evenly distributed. Multiple shock absorbers 12 are provided, and each shock absorber 12 is fixedly connected to each mounting groove 11. The mounting ring 5 is fixedly connected to the piston rod 6. Multiple shock absorption protrusions 10 are provided, and all of the multiple shock absorption protrusions 10 are fixedly connected to the bottom of the mounting ring 5. Each shock absorption protrusion 10 is aligned with each shock absorber 12.

[0041] In a specific embodiment of this utility model, the mounting groove 11 is provided for connecting the shock absorber 12. The shock absorber 10 can be used to reduce shock by colliding with the shock absorber 12, thereby preventing the piston rod 6 from colliding with the bottom of the cylinder body 1 when it retracts and moves, thus achieving shock absorption of the piston rod 6.

[0042] Specifically, the sealing mechanism is located on the cylinder body 1. The sealing mechanism is used to improve the sealing performance of the connection between the cylinder body 1 and the threaded cover 3. The sealing mechanism includes a sealing ring 13 and a groove 17. The groove 17 is opened on the top of the cylinder body 1, and the sealing ring 13 is engaged in the groove 17.

[0043] In a specific embodiment of this utility model, the groove 17 is provided for connecting the sealing ring 13. By having the sealing ring 13 snap into the groove 17, the sealing performance of the connection between the cylinder body 1 and the threaded cover 3 can be improved, thereby preventing oil leakage from the inside of the cylinder body 1.

[0044] Specifically, the reinforcing mechanism is located on the cylinder body 1 and the threaded cover 3. The reinforcing mechanism includes long screws 2 and nuts 4. There are four long screws 2, which are movably inserted into the cylinder body 1 and the threaded cover 3 and are evenly distributed. There are four nuts 4, each of which is threaded onto each long screw 2.

[0045] In a specific embodiment of this utility model, the long screw 2 and nut 4 can improve the strength of the connection between the cylinder body 1 and the threaded cover 3, so that the threaded cover 3 will not rotate after being threaded onto the cylinder body 1, and at the same time improve the sealing performance of the connection between the cylinder body 1 and the threaded cover 3.

[0046] Specifically, the articulation mechanism is located on the cylinder body 1 and the piston mechanism. The articulation mechanism includes an articulation ring A7, a bearing 8 and an articulation ring B9. The articulation ring A7 is fixedly connected to the piston rod 6, and the articulation ring B9 is fixedly connected to the cylinder body 1. There are two bearings 8, one of which is detachably connected to the articulation ring A7 and the other is detachably connected to the articulation ring B9.

[0047] In a specific embodiment of this utility model, the hinge ring A7 and hinge ring B9 can be hinged, while the bearing 8 can reduce frictional resistance and improve operating efficiency. Since the bearing 8 is detachably connected by screws, it is easy to disassemble and replace the bearing 8.

[0048] Specifically, one bearing 8 is detachably connected to the hinge ring A7 by screws, and the other bearing 8 is detachably connected to the hinge ring B9 by screws.

[0049] In a specific embodiment of this utility model, one bearing 8 is detachably connected to the hinge ring A7 by screws, and the other bearing 8 is detachably connected to the hinge ring B9 by screws.

[0050] The working principle or process of the shock-absorbing hydraulic cylinder provided by this utility model is as follows: the locking ring 14 and the limiting ring 16 cooperate to fix the piston ring 15 on the piston rod 6. At the same time, the locking ring 14 can be removed from the piston rod 6, so that the piston ring 15 can also be removed from the piston rod 6, allowing the piston ring 15 to be replaced. Since the piston ring 15 is slidably connected inside the cylinder body 1, the piston ring 15 can be moved out of the cylinder body 1. The shock-absorbing protrusion 10 collidees with the shock absorber 12 to absorb shock, preventing the piston rod 6 from colliding with the bottom of the cylinder body 1 when it retracts and moves, thereby achieving shock absorption of the piston rod 6. The groove 17 is set for... The sealing ring 13 is connected to the groove 17, which can improve the sealing performance of the connection between the cylinder body 1 and the threaded cover 3, thereby preventing oil leakage from the inside of the cylinder body 1. The long screw 2 and nut 4 can improve the strength of the connection between the cylinder body 1 and the threaded cover 3, so that the threaded cover 3 will not rotate after being threaded onto the cylinder body 1. At the same time, it can improve the sealing performance of the connection between the cylinder body 1 and the threaded cover 3. The hinge ring A7 and hinge ring B9 can be hinged, and the bearing 8 can reduce frictional resistance and improve operating efficiency. Since the bearing 8 is detachably connected by screws, it is easy to disassemble and replace the bearing 8.

[0051] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shock-absorbing hydraulic cylinder, characterized in that, include: Hydraulic cylinder body (1); Threaded cap (3), which is threadedly connected to the cylinder body (1); The piston mechanism is located on the cylinder body (1) and the threaded cover (3); The shock absorption mechanism is located on the threaded cover (3) and the piston mechanism; A sealing mechanism is provided on the cylinder body (1), and the sealing mechanism is used to improve the sealing performance of the connection between the cylinder body (1) and the threaded cover (3); The reinforcing mechanism is located on the cylinder body (1) and the threaded cap (3); The articulation mechanism is located on the cylinder body (1) and the piston mechanism; The piston mechanism includes a piston rod (6), a locking ring (14), a piston ring (15), and a limiting ring (16). The piston rod (6) is movably inserted into the threaded cap (3) and the cylinder body (1), and one end of the piston rod (6) extends into the cylinder body (1). The limiting ring (16) is fixedly connected to the piston rod (6) and is located inside the cylinder body (1). The locking ring (14) is threadedly connected to the piston rod (6). The piston ring (15) is movably sleeved on the piston rod (6) and is located between the locking ring (14) and the limiting ring (16). The piston ring (15) is slidably connected inside the cylinder body (1).

2. The shock-absorbing hydraulic cylinder according to claim 1, characterized in that: The shock absorption mechanism includes a threaded cover (3), shock-absorbing protrusions (10), mounting grooves (11), and shock absorbers (12). Multiple mounting grooves (11) are provided, and all of the mounting grooves (11) are opened on the top of the threaded cover (3) and are evenly distributed. Multiple shock absorbers (12) are provided, and each shock absorber (12) is fixedly connected to each mounting groove (11). The mounting ring (5) is fixedly connected to the piston rod (6). Multiple shock-absorbing protrusions (10) are provided, and all of the shock-absorbing protrusions (10) are fixedly connected to the bottom of the mounting ring (5). Each shock-absorbing protrusion (10) is aligned with each shock absorber (12).

3. A shock-absorbing hydraulic cylinder according to claim 2, characterized in that: The sealing mechanism includes a sealing ring (13) and a groove (17). The groove (17) is located on the top of the cylinder body (1), and the sealing ring (13) is engaged in the groove (17).

4. A shock-absorbing hydraulic cylinder according to claim 3, characterized in that: The reinforcing mechanism includes long screws (2) and nuts (4). There are four long screws (2), which are movably inserted into the cylinder body (1) and the threaded cover (3) of the cylinder. The four long screws (2) are evenly distributed. There are four nuts (4), each of which is threaded onto each long screw (2).

5. A shock-absorbing hydraulic cylinder according to claim 4, characterized in that: The hinge mechanism includes a hinge ring A (7), a bearing (8) and a hinge ring B (9). The hinge ring A (7) is fixedly connected to the piston rod (6), and the hinge ring B (9) is fixedly connected to the cylinder body (1). There are two bearings (8), one of which is detachably connected to the hinge ring A (7), and the other bearing (8) is detachably connected to the hinge ring B (9).

6. A shock-absorbing hydraulic cylinder according to claim 5, characterized in that: One of the bearings (8) is detachably connected to the hinge ring A (7) by screws, and the other bearing (8) is detachably connected to the hinge ring B (9) by screws.

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