Damping hydraulic oil cylinder

Abstract

The damping hydraulic oil cylinder comprises an oil cylinder body, a cylinder cover is installed at the top end of the oil cylinder body, a dustproof ring is installed at the top end of the cylinder cover, a hydraulic rod is movably arranged in the dustproof ring, a fixing ring is fixed to the top end of the hydraulic rod, and an installation base is fixed to the bottom end of the outer side wall of the fixing ring. A rubber dustproof sleeve is mounted at the bottom end of the mounting base, the outer side wall of the hydraulic rod is sleeved with a first spring, and the bottom end of the first spring is fixed to the top end of the cylinder cover. The damping hydraulic oil cylinder is provided with the mounting base, the rubber dustproof sleeve, the first spring, the cavity and other assemblies, when the hydraulic oil cylinder is used, the arranged hydraulic rod is started to push a corresponding object to move back and forth, and the arranged first spring can contract to buffer and damp the force generated when the hydraulic rod pulls the object back when the hydraulic rod contracts back; and damage to an object installed on one side of the hydraulic oil cylinder caused by too large backward pulling force is avoided, and the damping force of the hydraulic oil cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a shock-absorbing hydraulic cylinder. Background Art

[0002] A hydraulic cylinder is a device that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It is an actuator in a hydraulic transmission system. When used, it can provide a certain amount of force through hydraulic pressure and adjust the force for accurate force control. It can also control the speed and direction of piston movement to control the cylinder to reach the corresponding position.

[0003] When the existing hydraulic cylinder is used, the hydraulic rod inside the hydraulic cylinder pushes the object to reciprocate. In order to avoid damage to the hydraulic cylinder caused by excessive movement force during the reciprocating motion, a shock-absorbing hydraulic cylinder is now provided to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a shock-absorbing hydraulic cylinder to solve the problem of protecting the hydraulic cylinder proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shock-absorbing hydraulic cylinder, comprising a cylinder body, a cylinder cover is installed at the top of the cylinder body, a dust ring is installed at the top of the cylinder cover, and a hydraulic rod is movably arranged inside the dust ring, and a fixing ring is fixed to the top of the hydraulic rod, a mounting seat is fixed to the bottom end of the outer wall of the fixing ring, a rubber dust cover is installed at the bottom end of the mounting seat, and a cavity is arranged inside the rubber dust cover, a first spring is fixed to the bottom end of the mounting seat, and the first spring is sleeved on the outer wall of the hydraulic rod and its bottom end is fixed to the top of the cylinder cover.

[0006] Preferably, the bottom end of the rubber dust cover is fixed to the top end of the cylinder cover, and the rubber dust cover is designed in a bellows shape.

[0007] Preferably, a ring body is fixed to the outer wall of the cylinder body, assembly blocks are fixed to both sides of the cylinder body, and a telescopic rod is fixed to one side of the assembly block, the outer wall of the telescopic rod is sleeved with a second spring, and a rubber anti-collision block is fixed to one side of the second spring and the telescopic rod, and a rubber block is fixed to the outer wall of the rubber anti-collision block.

[0008] Preferably, two groups of rubber anti-collision blocks are provided, and the two groups of rubber anti-collision blocks are designed to be arc-shaped.

[0009] Preferably, a plurality of the second springs are provided, and the plurality of the second springs are distributed in a circular shape at equal intervals on the outer side wall of the ring body.

[0010] Preferably, a connecting block is fixed to the bottom end of the oil cylinder body, a mounting hole is provided at the bottom end of the connecting block, a rotating shaft is movably provided inside the mounting hole, and a connecting plate is fixed to one end of the rotating shaft, a mounting plate is fixed to the bottom end of the connecting plate, and fixing blocks are fixed on both sides of the mounting plate, and fixing bolts are movably provided inside the fixing blocks, an adjusting plate is fixed to the top end of the mounting plate, an adjusting hole is provided inside the adjusting plate, and a locking bolt is movably provided inside the adjusting hole.

[0011] Preferably, a plurality of the adjustment holes are provided, and the plurality of adjustment holes are distributed at equal intervals inside the adjustment plate.

[0012] Preferably, two groups of the fixing blocks are provided, and the two groups of the fixing blocks are symmetrically distributed about the central axis of the mounting plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the shock-absorbing hydraulic oil cylinder not only realizes the shock-absorbing protection of the hydraulic oil cylinder, realizes the protection of the hydraulic oil cylinder body to avoid damage caused by external force impact, but also realizes that the installation angle of the hydraulic oil cylinder can be adjusted when the hydraulic oil cylinder is used, and the adaptability is stronger;

[0014] (1) By providing components such as a mounting seat, a rubber dust cover, a first spring and a cavity, when the hydraulic cylinder is used, when the hydraulic rod is started to push the corresponding object to reciprocate, the first spring can be contracted when it retracts to buffer and reduce the force of the hydraulic rod pulling the object back, thereby preventing the object installed on one side from being damaged due to excessive pulling force, thereby improving the shock absorbing force of the hydraulic cylinder;

[0015] (2) By providing components such as a second spring, a telescopic rod and a rubber anti-collision block, the rubber anti-collision block provided when the hydraulic cylinder is in use is installed on the outer wall of the cylinder body through the second spring and the telescopic rod, etc., so as to provide corresponding anti-collision protection for the cylinder body, so that the cylinder body is not easily deformed and damaged when encountering external impact force, thereby greatly improving the protection of the hydraulic cylinder;

[0016] (3) By providing components such as an adjustment plate, a mounting plate, an adjustment hole and a locking bolt, when the hydraulic cylinder is installed and used, the rubber block can be rotated by rotating the rotating shaft to adjust the cylinder body to a suitable position angle and then fixed by the locking bolt, thereby facilitating the adjustment of the use angle during the installation and use of the hydraulic cylinder, and achieving stronger adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a partial cross-sectional structure of the utility model in a front view;

[0018] Figure 2It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 For the utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 4 The utility model is a schematic diagram of the top view of the rubber anti-collision block.

[0021] In the figure: 1. Cylinder body; 2. Cylinder head; 3. Dust ring; 4. Fixing ring; 5. Mounting seat; 6. Rubber dust cover; 7. Rubber block; 8. Connecting block; 9. Adjusting plate; 10. Fixing bolt; 11. Mounting plate; 12. Rotating shaft; 13. Connecting plate; 14. Fixing block; 15. Mounting hole; 16. Adjusting hole; 17. Locking bolt; 18. First spring; 19. Cavity; 20. Hydraulic rod; 21. Ring body; 22. Assembly block; 23. Second spring; 24. Telescopic rod; 25. Rubber anti-collision block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: a shock-absorbing hydraulic cylinder, comprising a cylinder body 1, a cylinder head 2 is installed on the top of the cylinder body 1, a dust ring 3 is installed on the top of the cylinder head 2, and a hydraulic rod 20 is movably arranged inside the dust ring 3, and a fixing ring 4 is fixed to the top of the hydraulic rod 20, a mounting seat 5 is fixed to the bottom end of the outer wall of the fixing ring 4, a rubber dust cover 6 is installed on the bottom end of the mounting seat 5, and a cavity 19 is arranged inside the rubber dust cover 6, and a first spring 18 is fixed to the bottom end of the mounting seat 5, and the first spring 18 is sleeved on the outer wall of the hydraulic rod 20 and its bottom end is fixed to the top of the cylinder head 2;

[0024] The bottom end of the rubber dust cover 6 is fixed to the top end of the cylinder head 2. The rubber dust cover 6 is designed in a bellows shape and cooperates with the expansion and contraction of the first spring 18 to provide dust protection therefor.

[0025] Specifically, Figure 1 and Figure 3 As shown, when the hydraulic rod 20 pulls the corresponding object to move back, the first spring 18 contracts the rubber dust cover 6 to fold and reduce the impact force caused by the object moving back, thereby providing a certain degree of protection for the oil cylinder body 1.

[0026] A ring body 21 is fixed to the outer wall of the oil cylinder body 1, assembly blocks 22 are fixed to both sides of the oil cylinder body 1, and a telescopic rod 24 is fixed to one side of the assembly block 22, and a second spring 23 is sleeved on the outer wall of the telescopic rod 24, and a rubber anti-collision block 25 is fixed to one side of the second spring 23 and the telescopic rod 24, and a rubber block 7 is fixed to the outer wall of the rubber anti-collision block 25;

[0027] There are two groups of rubber anti-collision blocks 25, and the two groups of rubber anti-collision blocks 25 are designed in an arc shape to provide a comprehensive protection for the oil cylinder body 1;

[0028] A plurality of second springs 23 are provided, and the plurality of second springs 23 are distributed in an annular manner at equal intervals on the outer wall of the ring body 21. The second springs 23 distributed at equal intervals make the telescopic protection effect of the rubber anti-collision block 25 better;

[0029] Specifically, Figure 1 and Figure 2 As shown, if an external impact force is encountered, the cylinder cover 2 contracts and the rubber anti-collision block 25 is pulled to contract through the guidance of the telescopic rod 24 to reduce the impact damage of the external impact force on the cylinder body 1.

[0030] A connecting block 8 is fixed to the bottom end of the oil cylinder body 1, a mounting hole 15 is provided at the bottom end of the connecting block 8, a rotating shaft 12 is movably provided inside the mounting hole 15, and a connecting piece 13 is fixed to one end of the rotating shaft 12, a mounting piece 11 is fixed to the bottom end of the connecting piece 13, and fixing blocks 14 are fixed to both sides of the mounting piece 11, and fixing bolts 10 are movably provided inside the fixing blocks 14, an adjusting piece 9 is fixed to the top end of the mounting piece 11, an adjusting hole 16 is provided inside the adjusting piece 9, and a locking bolt 17 is movably provided inside the adjusting hole 16;

[0031] There are a plurality of adjustment holes 16, which are evenly spaced inside the adjustment plate 9, so that the oil cylinder body 1 can be adjusted to different angles, and the adaptability is stronger;

[0032] Two groups of fixing blocks 14 are provided, and the two groups of fixing blocks 14 are symmetrically distributed about the central axis of the mounting plate 11, so that the installation and fixing of the oil cylinder body 1 is more stable;

[0033] Specifically, Figure 2 and Figure 4 As shown, the locking bolt 17 is screwed out and the oil cylinder body 1 is rotated to a suitable angle through the rotating shaft 12, and the locking bolt 17 is screwed into the corresponding adjustment hole 16 to fix the oil cylinder body 1 so as to adjust the oil cylinder body 1 to a suitable angle.

[0034] Working principle: When the utility model is in use, the hydraulic cylinder is taken out and the mounting plate 11 is fixed by the fixing bolts 10 and the fixing blocks 14 to install the hydraulic cylinder to the desired position. Then, the locking bolt 17 is screwed out according to the actual situation and the cylinder body 1 is rotated to a suitable angle by the rotating shaft 12. The locking bolt 17 is screwed into the corresponding adjusting hole 16 to fix the cylinder body 1. Then, the cylinder body 1 is adjusted to a suitable angle for use. If an external impact force is encountered during the use of the hydraulic cylinder, the cylinder cover 2 contracts and the rubber anti-collision block 25 is pulled to contract through the guidance of the telescopic rod 24 to reduce the impact damage to the cylinder body 1 caused by the external impact force. When the hydraulic rod 20 in the cylinder body 1 pulls the corresponding object to move back, the first spring 18 contracts and the rubber dust cover 6 is folded to reduce the impact force of the object moving back, thereby providing shock-absorbing protection for the hydraulic cylinder.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A shock-absorbing hydraulic cylinder, comprising a cylinder body (1), characterized in that: A cylinder head (2) is installed at the top of the oil cylinder body (1), a dust ring (3) is installed at the top of the cylinder head (2), and a hydraulic rod (20) is movably arranged inside the dust ring (3), and a fixing ring (4) is fixed at the top of the hydraulic rod (20), a mounting seat (5) is fixed at the bottom end of the outer wall of the fixing ring (4), a rubber dust cover (6) is installed at the bottom end of the mounting seat (5), and a cavity (19) is arranged inside the rubber dust cover (6), and a first spring (18) is fixed at the bottom end of the mounting seat (5), and the first spring (18) is sleeved on the outer wall of the hydraulic rod (20) and its bottom end is fixed to the top of the cylinder head (2).

2. A shock-absorbing hydraulic cylinder according to claim 1, characterized in that: The bottom end of the rubber dust cover (6) is fixed to the top end of the cylinder cover (2), and the rubber dust cover (6) is designed in a bellows shape.

3. The shock absorbing hydraulic cylinder according to claim 1, characterized in that: A ring body (21) is fixed to the outer wall of the oil cylinder body (1), assembly blocks (22) are fixed to both sides of the oil cylinder body (1), and a telescopic rod (24) is fixed to one side of the assembly block (22), a second spring (23) is sleeved on the outer wall of the telescopic rod (24), and a rubber anti-collision block (25) is fixed to one side of the second spring (23) and the telescopic rod (24), and a rubber block (7) is fixed to the outer wall of the rubber anti-collision block (25).

4. The shock absorbing hydraulic cylinder according to claim 3, characterized in that: The rubber anti-collision blocks (25) are provided in two groups, and the two groups of rubber anti-collision blocks (25) are designed to be arc-shaped.

5. The shock absorbing hydraulic cylinder according to claim 3, characterized in that: A plurality of the second springs (23) are provided, and the plurality of the second springs (23) are distributed in an annular shape at equal intervals on the outer side wall of the ring body (21).

6. The shock absorbing hydraulic cylinder according to claim 1, characterized in that: A connecting block (8) is fixed to the bottom end of the oil cylinder body (1), a mounting hole (15) is provided at the bottom end of the connecting block (8), a rotating shaft (12) is movably provided inside the mounting hole (15), and a connecting piece (13) is fixed to one end of the rotating shaft (12), a mounting piece (11) is fixed to the bottom end of the connecting piece (13), and fixing blocks (14) are fixed on both sides of the mounting piece (11), and fixing bolts (10) are movably provided inside the fixing blocks (14), an adjusting piece (9) is fixed to the top end of the mounting piece (11), an adjusting hole (16) is provided inside the adjusting piece (9), and a locking bolt (17) is movably provided inside the adjusting hole (16).

7. The shock absorbing hydraulic cylinder according to claim 6, characterized in that: A plurality of the adjustment holes (16) are provided, and the plurality of the adjustment holes (16) are distributed at equal intervals inside the adjustment sheet (9).

8. The shock absorbing hydraulic cylinder according to claim 6, characterized in that: Two groups of the fixing blocks (14) are provided, and the two groups of the fixing blocks (14) are symmetrically distributed about the central axis of the mounting plate (11).

Images