Damping valve structure of shock absorber

Abstract

The damping valve structure of the shock absorber comprises a shock absorption cylinder, one end of the shock absorption cylinder is fixedly connected with a first positioning ring, the other end of the shock absorption cylinder is provided with a threaded cylinder, an end cover is installed in the threaded cylinder in a threaded mode, and a damping rod is installed in the end cover in a sliding mode. One end of the damping rod is fixedly connected with a piston, the piston is slidably connected to the interior of the damping cylinder, the other end of the damping rod is fixedly connected with a baffle, one side of the baffle is fixedly connected with a second positioning ring, an adjusting through hole is formed in the surface of one end of the damping rod, and one side of the end cover is fixedly connected with a positioning cylinder. And a damping spring is connected to the interior of the positioning cylinder in a pressing mode and slidably connected to the outer surface of the damping rod in a sleeving mode, so that the damping effect is improved, the compression space can be adjusted according to needs, and the device is high in adaptability, accurate, efficient and convenient to adjust and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shock absorber, more specifically, relate to a shock absorber's damping valve structure. BACKGROUND

[0002] The damper used in the damping shock product on the current market is the damper of fixed flow resistance, but the shock absorber used in the articulated vehicle articulated system needs to be properly adjusted according to the differences of different vehicle models, axle weights, road conditions and the like, so as to obtain the ideal damping shock effect, and is an important part for automobile assembly.

[0003] And the utility model relates to a kind of damping valve for shock absorber, the damping valve includes locking nut (1), adjusting screw (2), shock absorbing rubber core (3), spring (4), valve core (5) and valve seat (6);The cylindrical outer periphery of the valve core (5) is provided with oil groove (5-41) and cutout (5-31) communicated with each other;Oil groove and cutout are communicated to form damping hole, before hydraulic force is overcome spring force to open valve core, hydraulic oil can flow to the upper end of damping valve through oil groove and cutout, and form damping;Avoid that valve core opening height is too high, causes hydraulic pressure fluctuation;In this way, by the oil groove and cutout set on valve core and the shock absorbing rubber core set in spring, damping valve is buffered when opening and closing, greatly reduce the pressure fluctuation caused by damping valve opening and closing process, so that shock absorber obtains ideal damping effect, improves the use stability and comfort of articulated vehicle.

[0004] In the above disclosed structure, the damping is carried out by the structure of valve core connecting valve seat, but the end cap of the shock absorbing cylinder is connected in a split body to install the damping rod and damping spring, which is not conducive to alignment installation, affects use, and also lacks a sufficient and installed adjusting cylinder, cannot fill hydraulic oil in the interior to compress and increase damping effect, has poor damping effect and insufficient stability, and needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims at providing a damping valve structure of shock absorber, which installs end cap through threaded cylinder at the end of shock absorbing cylinder, thereby slidingly installing damping rod and damping spring, can be installed and positioned in a split body, avoids interference, is conducive to sliding damping, simultaneously installs threaded tube and adjusting cylinder through connecting pipe at side surface, can fill hydraulic oil to compress, thereby increasing damping effect, and can adjust compression space according to needs, has high adaptability, is accurate and efficient, and is convenient to adjust and use.

[0006] To solve the above problems, the utility model adopts the following technical scheme.

[0007] The application discloses a damping valve structure of a shock absorber, which comprises a shock absorber cylinder, a first positioning ring is fixedly connected to one end of the shock absorber cylinder, a threaded cylinder is arranged at the other end of the shock absorber cylinder, an end cover is internally threadedly installed on the threaded cylinder, a damping rod is internally slidably installed on the end cover, a piston is fixedly connected to one end of the damping rod, the piston is slidably connected to the inside of the shock absorber cylinder, a baffle is fixedly connected to the other end of the damping rod, a second positioning ring is fixedly connected to one side of the baffle, an adjusting through hole is arranged on the surface of one end of the damping rod, a positioning cylinder is fixedly connected to one side of the end cover, a damping spring is pressingly connected to the inside of the positioning cylinder, the damping spring is slidably sleeved on the outer surface of the damping rod, a connecting pipe is arranged at one end of the shock absorber cylinder, a threaded pipe is threadedly installed on one end of the connecting pipe, an adjusting cylinder is rotatably installed on one end of the threaded pipe, and the adjusting cylinder is located at one side of the shock absorber cylinder.

[0008] Further, a fixed block is fixedly connected to the surface of one end of the adjusting cylinder, and the fixed block is fixedly connected to the outer surface of the shock absorber cylinder.

[0009] Further, a limiting rod is fixedly connected to the inside of one end of the adjusting cylinder, and the limiting rod is located at one side of the threaded pipe.

[0010] Further, a pushing threaded rod is threadedly installed on one end of the adjusting cylinder, a sealing plate is fixedly connected to one end of the pushing threaded rod, and the sealing plate is slidably installed in the inside of the adjusting cylinder, the limiting rod is arranged in the inside of the adjusting cylinder, the sealing plate is installed on the pushing threaded rod, the inside space can be changed by threadedly pushing, the compression amount can be adjusted, the damping effect can be adjusted according to the requirement, the installation and use are convenient, the pushing depth can be limited, the reverse flow can be avoided, and safety and stability are achieved.

[0011] Further, one end of the damping spring is tightly connected to the surface of one side of the baffle and located at one side of the adjusting head through hole.

[0012] Further, the damping rod is slidably installed at the inside of one end of the shock absorber cylinder and located in the inside of the positioning cylinder.

[0013] Further, the length of the adjusting cylinder is not greater than the length of the shock absorber cylinder, the damping rod is sleeved on the damping spring, and the positioning cylinder is combined and installed, so that coaxial positioning can be achieved, deviation and misplacement can be avoided, and interference can be avoided, and accuracy and stability are achieved.

[0014] Compared with the prior art, the damping valve structure of the shock absorber has the advantages that:

[0015] (1) The scheme is characterized in that the end cap is installed on the threaded cylinder at the end of the damping cylinder, the damping rod and the damping spring are slidably installed, the damping effect is increased by filling hydraulic oil into the threaded pipe and the adjusting cylinder through the connecting pipe on the side, the compression space can be adjusted according to the need, the adaptability is high, the accuracy is high, the adjustment is convenient, and the use is convenient.

[0016] (2) The adjusting cylinder is provided with a limiting rod, and the sealing plate is installed by pushing the threaded rod, so that the internal space size is changed by screwing, the compression amount is adjusted, the damping effect is adjusted according to the need, the installation is convenient, the pushing depth can be limited, the reverse flow is avoided, and the safety and stability are high.

[0017] (3) The damping spring is sleeved with the damping rod, and the positioning cylinder is combined and installed, so that the coaxial installation and positioning are realized, the interference caused by deviation and misplacement is avoided, and the accuracy and stability are high. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a plane structure schematic view of the utility model;

[0020] Figure 3 It is a partial sectional view of the end cap and the damping rod connection of the utility model;

[0021] Figure 4 It is a structure view of the damping rod and the damping cylinder of the utility model;

[0022] Figure 5 It is a partial structure view of the adjusting cylinder connection of the utility model.

[0023] Explanation of reference numerals in the drawing:

[0024] 1 damping cylinder, 11 first positioning ring, 12 threaded cylinder, 13 end cap, 14 damping rod, 15 piston, 16 baffle, 17 second positioning ring, 18 adjusting through hole, 2 positioning cylinder, 21 damping spring, 22 connecting pipe, 23 threaded pipe, 24 adjusting cylinder, 25 fixed block, 26 limiting rod, 27 sealing plate, 28 pushing threaded rod. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Please refer to Figure 1 , Figure 2 and Figure 5 , a damping valve structure of a shock absorber, comprising a shock absorber cylinder 1, one end of the shock absorber cylinder 1 is fixedly connected with a first positioning ring 11, the other end of the shock absorber cylinder 1 is provided with a threaded cylinder 12, the threaded cylinder 12 is internally threaded with an end cover 13, the end cover 13 is internally slidingly installed with a damping rod 14, one end of the damping rod 14 is fixedly connected with a piston 15, the piston 15 is slidingly connected in the interior of the shock absorber cylinder 1, the other end of the damping rod 14 is fixedly connected with a baffle 16, one side of the baffle 16 is fixedly connected with a second positioning ring 17, through the threaded positioning of the end cover 13, the damping rod 14 and the piston 15 can be installed into the interior of the shock absorber cylinder 1, which can be slidingly adjusted for compression damping, convenient and stable, beneficial for installation and use, one end surface of the damping rod 14 is provided with an adjusting through hole 18, the adjusting through hole 18 can push one end of the damping spring 21 to adjust to one side position, then insert the cross rod for limiting, the damping spring 21 and the positioning cylinder 2 can be separated, which can detect the position of the end cover 13, avoid interference, beneficial for adjustment and use, high adaptability, one side of the end cover 13 is fixedly connected with a positioning cylinder 2, the positioning cylinder 2 is internally tightly connected with a damping spring 21, the damping spring 21 is slidingly sleeved on the outer surface of the damping rod 14, one end of the shock absorber cylinder 1 is provided with a connecting pipe 22, one end of the connecting pipe 22 is threaded with a threaded pipe 23, one end of the threaded pipe 23 is rotatably installed with an adjusting cylinder 24, the adjusting cylinder 24 is located at one side position of the shock absorber cylinder 1, the adjusting cylinder 24 is installed in a split body, which can increase the internal compression space, thereby filling the medium to increase the damping effect, beneficial for installation and use.

[0027] Please refer to Figure 2 and Figure 3The surface of one end of the adjusting cylinder 24 is fixedly connected with a fixed block 25, the fixed block 25 is fixedly connected to the outer surface of the damping cylinder 1, the inner end of the adjusting cylinder 24 is fixedly connected with a limiting rod 26, the limiting rod 26 is located at one side of the threaded pipe 23, the one end of the adjusting cylinder 24 is threadedly installed with a pushing threaded rod 28, the one end of the pushing threaded rod 28 is fixedly connected with a sealing plate 27, the sealing plate 27 is slidingly installed in the inner part of the adjusting cylinder 24, by arranging the limiting rod in the adjusting cylinder, and combining the pushing threaded rod with the sealing plate, the internal space size can be changed by screwing and pushing, so that the compression amount is adjusted, the damping effect is adjusted according to the needs, the installation and use are facilitated, the pushing depth can be limited, the reverse flow is avoided, it is safe and stable, when in use, the pushing threaded rod 28 can be manually rotated, the sealing plate 27 can be moved by screwing and adjusting, so that the space size in the adjusting cylinder 24 is changed, so that the medium in the damping cylinder 1 can be compressed into the adjusting cylinder 24, and the pressure can be adjusted according to the compression space size, so that the damping effect can be adjusted, the installation and use are facilitated, it is accurate and efficient, the installation and use are facilitated, and the limiting rod 26 can limit the adjusting depth of the sealing plate 27, so that the medium leakage caused by the threaded pipe 23 is avoided, and the safety is improved.

[0028] Please refer to Figure 2 and Figure 4 One end of the damping spring 21 is tightly connected to one side surface of the baffle 16 and located at one side of the adjusting head through hole 18, the damping rod 14 is slidingly installed at the inner end of the damping cylinder 1 and located in the inner part of the positioning cylinder 2, the length of the adjusting cylinder 24 is not greater than the length of the damping cylinder 1, the damping spring is sleeved with the damping rod, and the positioning cylinder is combined and installed, so that the coaxial installation is facilitated, the interference caused by the deviation and misplacement is avoided, and it is accurate and stable.

[0029] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A damping valve structure of a shock absorber, comprising a shock absorber cylinder (1), one end of the shock absorber cylinder (1) is fixedly connected with a first positioning ring (11), the other end of the shock absorber cylinder (1) is provided with a threaded cylinder (12), the inside of the threaded cylinder (12) is provided with an end cover (13) which is screwed, characterized in that: The inside of the end cover (13) is slidably provided with a damping rod (14), one end of the damping rod (14) is fixedly connected with a piston (15), the piston (15) is slidably connected to the inside of the damping cylinder (1), the other end of the damping rod (14) is fixedly connected with a baffle (16), one side of the baffle (16) is fixedly connected with a second positioning ring (17), one end surface of the damping rod (14) is provided with an adjusting through hole (18), one side of the end cover (13) is fixedly connected with a positioning cylinder (2), the inside of the positioning cylinder (2) is press-connected with a damping spring (21), the damping spring (21) is slidably sleeved on the outer surface of the damping rod (14), one end of the damping cylinder (1) is provided with a connecting pipe (22), one end of the connecting pipe (22) is threadedly provided with a threaded pipe (23), one end of the threaded pipe (23) is rotatably provided with an adjusting cylinder (24), the adjusting cylinder (24) is located at one side of the damping cylinder (1).

2. The damping valve structure of a shock absorber according to claim 1, characterized by: One end surface of the adjusting cylinder (24) is fixedly connected with a fixed block (25), the fixed block (25) is fixedly connected to the outer surface of the damping cylinder (1).

3. The damping valve structure of a shock absorber according to claim 1, wherein: One end of the adjusting cylinder (24) is fixedly connected with a limiting rod (26), the limiting rod (26) is located at one side of the threaded pipe (23).

4. The damping valve structure of a shock absorber according to claim 1, wherein: One end of the adjusting cylinder (24) is threadedly provided with a pushing threaded rod (28), one end of the pushing threaded rod (28) is fixedly connected with a sealing plate (27), the sealing plate (27) is slidably mounted in the inside of the adjusting cylinder (24).

5. The damping valve structure of a shock absorber according to claim 1, wherein: One end of the damping spring (21) is tightly connected to one side surface of the baffle (16), and is located at one side of the adjusting head through hole (18).

6. The damping valve structure of a shock absorber according to claim 1, wherein: The damping rod (14) is slidably mounted at the inside of the damping cylinder (1), and is located at the inside of the positioning cylinder (2).

7. The damping valve structure of a shock absorber according to claim 1, wherein: The length of the adjusting cylinder (24) is not greater than the length of the damping cylinder (1).

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