Hydraulic damper

Abstract

The utility model belongs to the technical field of hydraulic dampers, and particularly relates to a hydraulic damper which comprises a bottom cylinder, the lower end of the bottom cylinder is fixedly connected with a first installation lug, the inner wall of the bottom cylinder is connected with a telescopic cylinder in a sliding mode, and the upper end of the telescopic cylinder is fixedly connected with a second installation lug. The second fixing ring is pushed to make contact with the bottom cylinder, the first fixing ring makes contact with the telescopic cylinder, the dustproof sleeve covers the gap between the telescopic cylinder and the bottom cylinder, dustproof treatment is conducted on the telescopic gap of the hydraulic damper, and the problem of invasion of impurities such as dust in the bottom cylinder is solved; through arrangement of structures such as an end rod I, a spring I and an insertion block I, insertion treatment can be performed on a telescopic cylinder, and through arrangement of structures such as an end rod II, a spring II and an insertion block II, insertion limiting can be performed on a bottom cylinder, so that a fixing ring I, a fixing ring II and a dustproof sleeve are stably arranged, and rapid installation and use by an operator are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic dampers, in particular to a hydraulic damper. Background Art

[0002] The hydraulic damper of the bellows pump is a device used to control the speed and damping of the bellows pump. The bellows pump is a pump driven by air pressure, consisting of a flexible bellows and a compressed air source. The hydraulic damper controls the speed and stability of the bellows pump through the damping effect of the liquid during the operation of the bellows pump.

[0003] A hydraulic damper is disclosed in a utility model patent with patent authorization announcement number CN214197078U, including a damper, wherein connecting seats are installed at both left and right ends of the damper, a groove is installed on the outer side of the connecting seat, a matching connecting block is installed in the inner cavity of the groove, a connecting plate is installed on the outer side of the connecting block, and the connecting plate is connected to the damper, and a fixing mechanism is installed in the inner cavity of the connecting block.

[0004] However, the existing hydraulic damper also has certain shortcomings. The telescopic cylinder and the bottom cylinder used in the existing hydraulic damper are in a sliding connection relationship. Due to the influence of impurities such as dust, sliding gaps and dust adhesion on the surface of the telescopic cylinder will be caused, which will cause dust and other impurities to invade the bottom cylinder, resulting in a deterioration of the telescopic damping effect. Utility Model Content

[0005] The utility model aims to provide a hydraulic damper, which solves the problem that the telescopic cylinder and the bottom cylinder used in the existing hydraulic damper are in a sliding connection relationship, and due to the influence of impurities such as dust, a sliding gap and dust adhesion on the surface of the telescopic cylinder will be caused, and then dust and other impurities will invade the bottom cylinder, causing the telescopic damping effect to deteriorate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic damper, comprising a base cylinder, the lower end of which is fixedly connected with a mounting ear one, the inner wall of the base cylinder is slidably connected with a telescopic cylinder, the upper end of the telescopic cylinder is fixedly connected with a mounting ear two, the outer side of the telescopic cylinder is slidably sleeved with a fixing ring one, the outer side of the base cylinder is slidably sleeved with a fixing ring two, and a dust cover is commonly arranged between the fixing ring two and the fixing ring one.

[0007] Preferably, the interior of the fixed ring is slidably connected with an end rod, the left end of the end rod is fixedly connected with an insert block, the insert block is slidably connected to the fixed ring, the insert block is slidably connected to the telescopic tube, a spring is provided on the outside of the insert block, and a sliding groove is provided on the surface of the end rod, and the telescopic tube can be limited by the coordinated use of the end rod, the insert block, the spring and other structures, so as to install and use the fixed ring.

[0008] Preferably, one end of the spring one is welded to the end rod one, and the other end of the spring one is welded to the fixing ring one. Through the setting of the spring one, the end rod one can be connected for use.

[0009] Preferably, a slider 1 is fixedly connected to the right side of the fixed ring 1, and the slider 1 is slidably connected to a slide groove 1. Through the structural settings of the slider 1, the slide groove 1 and the like, the end rod 1 can be guided.

[0010] Preferably, the interior of the second fixing ring is slidably connected with an end rod, the left end of the second end rod is fixedly connected with an insert block, the insert block is slidably connected to the second fixing ring, the insert block is slidably connected to the bottom tube, a spring is provided on the outside of the insert block, and a slide groove is provided on the surface of the second end rod. By setting the end rod, the insert block, the spring and other structures, the bottom tube can be limited, and then the second fixing ring can be installed and used.

[0011] Preferably, one end of the second spring is welded to the second end rod, and the other end of the second spring is welded to the second fixing ring. Through the provision of the second spring, the second end rod can be connected for use.

[0012] Preferably, a slider 2 is fixedly connected inside the second fixing ring, and the slider 2 is slidably connected to the second slide groove. Through the coordinated use of the slider 2 and the second slide groove, the end rod 2 can be guided.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model pushes the second fixing ring to contact the bottom cylinder, and makes the first fixing ring to contact the telescopic cylinder, so that the dust cover covers the gap between the telescopic cylinder and the bottom cylinder, and performs dust-proof treatment on the telescopic gap of the hydraulic damper, avoiding the problem of dust and other impurities invading the bottom cylinder.

[0015] 2. The utility model can insert the telescopic tube through the arrangement of the end rod 1, spring 1, plug block 1 and other structures, and can insert and limit the bottom tube through the arrangement of the end rod 2, spring 2, plug block 2 and other structures, so that the fixing ring 1, fixing ring 2 and dust cover are stably placed, which is convenient for the operator to quickly install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0018] Figure 3 For the utility model Figure 1 A cutaway perspective view of

[0019] Figure 4 For the utility model Figure 2 A magnified image of point A;

[0020] Figure 5 For the utility model Figure 2 Enlarged view of point B.

[0021] In the figure: 1. bottom tube; 2. mounting ear 1; 3. telescopic tube; 4. mounting ear 2; 5. fixing ring 1; 6. fixing ring 2; 7. dust cover; 8. end rod 1; 9. plug block 1; 10. spring 1; 11. slide groove 1; 12. slider 1; 13. end rod 2; 14. plug block 2; 15. spring 2; 16. slide groove 2; 17. slider 2. 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 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A hydraulic damper comprises a base tube 1, a mounting ear 2 is fixedly connected to the lower end of the base tube 1, a telescopic tube 3 is slidably connected to the inner wall of the base tube 1, a mounting ear 2 4 is fixedly connected to the upper end of the telescopic tube 3, a fixing ring 1 5 is slidably sleeved on the outer side of the telescopic tube 3, a fixing ring 2 6 is slidably sleeved on the outer side of the base tube 1, and a dust cover 7 is commonly arranged between the fixing ring 2 6 and the fixing ring 1 5.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4The interior of the fixed ring 5 is slidably connected with an end rod 8, and the left end of the end rod 8 is fixedly connected with an insert block 9, which is slidably connected to the fixed ring 5, and the insert block 9 is slidably connected to the telescopic tube 3. A spring 10 is arranged on the outside of the insert block 9, one end of the spring 10 is welded to the end rod 8, and the other end of the spring 10 is welded to the fixed ring 5. Through the arrangement of the spring 10, the end rod 8 can be connected and used, and a slider 12 is fixedly connected to the right side of the fixed ring 5, and the slider 12 is slidably connected to the slide groove 11. Through the arrangement of the slider 12, the slide groove 11 and other structures, the end rod 8 can be guided, and a slide groove 11 is provided on the surface of the end rod 8. Through the coordinated use of the end rod 8, the insert block 9, the spring 10 and other structures, the telescopic tube 3 can be limited, and then the fixed ring 5 can be installed and used.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 The interior of the fixed ring 6 is slidably connected with an end rod 13, and the left end of the end rod 13 is fixedly connected with an insert block 14, which is slidably connected to the fixed ring 6, and the insert block 14 is slidably connected to the bottom tube 1, and a spring 15 is arranged on the outside of the insert block 14, one end of the spring 15 is welded to the end rod 13, and the other end of the spring 15 is welded to the fixed ring 6. Through the arrangement of the spring 15, the end rod 13 can be connected and used, and a slide groove 16 is provided on the surface of the end rod 13. A slider 17 is fixedly connected to the interior of the fixed ring 6, and the slider 17 is slidably connected to the slide groove 16. Through the coordinated use of the slider 17 and the slide groove 16, the end rod 13 can be guided, and through the arrangement of the end rod 13, the insert block 14, the spring 15 and other structures, the bottom tube 1 can be limited, and then the fixed ring 6 can be installed and used.

[0026] The specific implementation process of the utility model is as follows: when the hydraulic damper needs to be used, the end rod 13 is pulled to move to the right, so that the slider 17 slides along the inner wall of the slide groove 16 to ensure the stable movement of the end rod 13, and drives the plug block 14 to move, the spring 15 is deformed, and then the fixing ring 6 is sleeved on the outer side of the bottom tube 1, and the end rod 13 is loosened to make the spring 15 recover its deformation, so as to pull the plug block 14 to insert into the bottom tube 1, and the fixing ring 6 is installed and used;

[0027] Similarly, by pulling the end rod 8 to move to the right, the slider 12 slides along the inner wall of the slide groove 11 to ensure the stable movement of the end rod 8, and drives the plug 9 to move, the spring 10 is deformed, and then the fixed ring 5 is pushed to be sleeved on the outside of the telescopic cylinder 3, and the end rod 8 is loosened to make the spring 10 recover its deformation, so as to pull the plug 9 to insert into the telescopic cylinder 3, and install the fixed ring 5;

[0028] Under the action of the fixing ring 1 5 and the fixing ring 2 6, the dustproof sleeve 7 can be sleeved on the sliding gap between the telescopic cylinder 3 and the bottom cylinder 1, and the sliding gap between the telescopic cylinder 3 and the bottom cylinder 1 is dust-proofed to prevent dust and other impurities from invading the bottom cylinder 1, resulting in poor telescopic damping effect of the hydraulic damper.

[0029] 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 hydraulic damper, comprising a bottom cylinder (1), characterized in that: The lower end of the bottom tube (1) is fixedly connected with a mounting ear 1 (2), the inner wall of the bottom tube (1) is slidably connected with a telescopic tube (3), the upper end of the telescopic tube (3) is fixedly connected with a mounting ear 2 (4), the outer side of the telescopic tube (3) is slidably sleeved with a fixing ring 1 (5), the outer side of the bottom tube (1) is slidably sleeved with a fixing ring 2 (6), and a dust cover (7) is provided between the fixing ring 2 (6) and the fixing ring 1 (5).

2. A hydraulic damper according to claim 1, characterized in that: The interior of the fixed ring (5) is slidably connected to an end rod (8), the left end of the end rod (8) is fixedly connected to an insert block (9), the insert block (9) is slidably connected to the fixed ring (5), the insert block (9) is slidably connected to the telescopic cylinder (3), a spring (10) is provided on the outer side of the insert block (9), and a sliding groove (11) is provided on the surface of the end rod (8).

3. A hydraulic damper according to claim 2, characterized in that: One end of the spring one (10) is welded to the end rod one (8), and the other end of the spring one (10) is welded to the fixing ring one (5).

4. A hydraulic damper according to claim 2, characterized in that: The right side of the fixing ring 1 (5) is fixedly connected with a sliding block 1 (12), and the sliding block 1 (12) is slidably connected with a sliding groove 1 (11).

5. The hydraulic damper according to claim 1, characterized in that: The interior of the second fixing ring (6) is slidably connected with the second end rod (13), the left end of the second end rod (13) is fixedly connected with the second plug block (14), the second plug block (14) is slidably connected to the second fixing ring (6), the second plug block (14) is slidably connected to the bottom tube (1), the outer side of the second plug block (14) is provided with a second spring (15), and the surface of the second end rod (13) is provided with a second slide groove (16).

6. A hydraulic damper according to claim 5, characterized in that: One end of the second spring (15) is welded to the second end rod (13), and the other end of the second spring (15) is welded to the second fixing ring (6).

7. A hydraulic damper according to claim 5, characterized in that: The interior of the second fixing ring (6) is fixedly connected with a second sliding block (17), and the second sliding block (17) is slidably connected with the second sliding groove (16).

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