Waterproof, liquid-leakage-proof and separation-proof damping shock absorber

Abstract

The utility model relates to a water-proof, liquid-leakage-proof and separation-proof damping shock absorber which comprises an upper assembly, a lower assembly, damping liquid, a spring, a conical sealing sleeve and a mechanical buckle, wherein the conical sealing sleeve is arranged between the upper assembly and the lower assembly. Through the arrangement of the conical sealing sleeve between the upper assembly and the lower assembly, the damping liquid leakage caused by the toppling of the shock absorber in the transportation or construction process can be prevented; through the arrangement of the waterproof check ring below the upper assembly, the principle of a waterproof clock can be adopted, and accumulated water in a tunnel is blocked outside a damping chamber of the shock absorber through atmospheric pressure, so that the waterproof effect of the damping shock absorber is achieved; in addition, the mechanical buckles can provide certain pre-tightening force for the interior of the shock absorber, it is guaranteed that the shock absorber is not separated when subjected to certain impact in the transportation and construction process, the pre-tightening force is provided for resetting of the mechanical buckles in the overhaul and maintenance process, it is guaranteed that all assemblies of the shock absorber are connected, and the shock absorber can be taken out conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit facility technical field, concretely is a waterproof, liquid leakage prevention, separation prevention damper shock absorber. BACKGROUND

[0002] China is a subway application big country, and a large number of subway lines are laid in all major cities across the country, with the gradual popularization of national rail transit, steel spring floating slab vibration reduction track bed also exposes more and more problems in construction and later operation and maintenance process. At present, the main market subway steel spring floating slab damper has two waterproof schemes of rubber sleeve and waterproof clock; the upper and lower assembly parts of the connecting damper mainly have two connecting modes of rubber sleeve and solid glue. In the construction process of steel spring floating slab vibration reduction track bed, due to the complex construction environment, workers often fail to perform construction work according to the use requirements of steel spring damper, causing the traditional damper to have the phenomenon of liquid leakage in the construction process. In the later maintenance process of steel spring floating slab vibration reduction track bed, especially in the case of extreme weather, there will inevitably be a lot of water in the tunnel to soak the damper, and water will enter during soaking. In addition, during the maintenance of the floating slab vibration reduction track bed, the damper also has the condition of disassembly and separation. In view of the problems existing in the above-mentioned subway steel spring floating slab damper, the specific description is as follows:

[0003] 1. The rubber sleeve is easily pierced, aged, damaged, and water enters due to atmospheric negative pressure during work, and if the rubber sleeve is aged and damaged, or the throat clamp is lost, the damper is difficult to remove and replace; in addition, when the rubber sleeve connects the upper and lower assemblies of the spring damper, the weight of the lower assembly and the spring is entirely borne by the friction force exerted by the rubber sleeve and the throat clamp on the upper assembly, which requires higher quality of the throat clamp and the rubber sleeve, and as the damper is used, corrosion and aging occur, and the throat clamp and the rubber sleeve have a high risk of falling off;

[0004] 2. The waterproof scheme using the principle of waterproof clock is mainly difficult to control the construction process, and if the device is tilted for a long time during construction, the internal liquid damping is easy to flow out, causing the damping performance of the damper to be damaged;

[0005] 3. The solid glue connects the upper and lower assemblies, which needs to bear the weight of the spring and the lower assembly by the solid glue, which is acceptable in the initial stage, but as the service life of the damper increases, the solid glue is prone to failure, causing the upper and lower assemblies of the damper to separate;

[0006] 4. If the upper and lower components of the shock absorber are separated, it will be very difficult to remove them, which will greatly extend the operation and maintenance cycle. Moreover, during operation, the shock absorber may need to be removed, inspected, or repaired and replaced in a water-immersed environment. If the upper and lower components are separated, water will inevitably enter the damping chamber of the shock absorber, causing the shock absorber to fail. Utility Model Content

[0007] (1) Technical problems solved

[0008] The utility model provides a waterproof, liquid-leakage-proof and separation-proof damping shock absorber, which solves the following technical problems: 1. It solves the problem that the rubber sleeve is easily punctured, aged, the throat clamp is damaged, or the atmospheric negative pressure during operation causes water ingress and failure on site; 2. It solves the problem that the vibration isolator is difficult to remove and replace when the rubber sleeve is aged and damaged, or the throat clamp falls off; 3. It solves the problem that when the waterproof bell principle is used, the vibration isolator is prone to leaking damping liquid when it falls during construction, causing damage to the damping performance of the shock absorber; 4. It solves the problem that when the rubber sleeve connects the upper and lower components of the spring damper, the rubber sleeve and the throat clamp have a great risk of falling off; 5. It solves the problem that when solid glue is used for connection, the upper and lower components are easily separated from each other due to the failure of the solid glue.

[0009] (2) Technical solution

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a waterproof, leak-proof and separation-proof damping shock absorber, comprising an upper component, a lower component, a damping fluid and a spring, the upper component and the lower component are connected in combination, and an inner cavity for installing the spring and containing the damping fluid is formed between the upper component and the lower component, and also includes a conical sealing sleeve arranged between the upper component and the lower component, the top section of the conical sealing sleeve is arranged in a frustum shape, and the upper end of the conical sealing sleeve is inserted into the upper part of the upper component; the bottom section of the conical sealing sleeve is arranged in a cylindrical shape, and the lower end of the conical sealing sleeve is sleeved on the top of the lower component and fixedly connected thereto; after a certain pressure is applied between the upper component and the lower component, the top section of the conical sealing sleeve can be deformed, and the conical sealing sleeve is used for sealing between the upper component and the lower component.

[0011] Preferably, the waterproof, leak-proof and separation-proof damping vibration absorber further comprises a mechanical buckle, which is used for the combined connection between the upper component and the lower component.

[0012] It is further preferred that the mechanical clip includes a twist hook and a through pin, the through pin is fixedly connected at the bottom inside the upper component, the twist hook is fixedly connected at the top inside the lower component, and a step for hooking the through pin is formed on the side of the twist hook facing the through pin.

[0013] In a further preferred embodiment, a first spring stop ring is formed on the upper assembly at the center of one side of the conical sealing sleeve, a second spring stop ring is formed on the lower assembly at the center of one side of the conical sealing sleeve, the first spring stop ring and the second spring stop ring are coaxially arranged, and the first spring stop ring and the second spring stop ring cooperatively limit the spring.

[0014] In a further preferred embodiment, a circular positioning platform is formed on the inner wall at the connection between the conical frustum portion and the cylindrical portion of the conical sealing sleeve, the top end of the lower assembly abuts against the positioning platform, the spring passes through the middle cavity of the positioning platform, the upper end of the spring contacts the upper assembly, and the lower end of the spring contacts the lower assembly.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the damping shock absorber provided by the utility model has the following beneficial effects:

[0017] 1. In the utility model, the conical sealing sleeve is arranged between the upper assembly and the lower assembly, and a certain pressure is applied between the upper assembly and the lower assembly, so that the conical sealing sleeve is deformed to block the gap between the upper assembly and the lower assembly, thereby preventing the damping liquid from leaking due to the overturning of the shock absorber during transportation or construction; and the aging and failure of the sealing sleeve, the clamp and the adhesive of the shock absorber in the prior art are avoided, so that the separation of the shock absorber is prevented, the maintenance cost of the subway is greatly reduced, and the operation and maintenance efficiency is improved.

[0018] 2. In the utility model, the waterproof stop ring is arranged below the upper assembly, so that the shock absorber can adopt the waterproof clock principle, and the accumulated water in the tunnel is blocked outside the damping chamber of the shock absorber by using atmospheric pressure; it has been verified that this scheme can cope with most extreme working conditions (such as long-term immersion in the tunnel).

[0019] 3. In the utility model, the spring can be immersed in the damping cylinder formed on the lower assembly, and the damping cylinder can protect the spring; and only the spring provides support force during the working process of the shock absorber, so that the working stress curve of the shock absorber is stable.

[0020] 4. In the utility model, the mechanical buckle can provide a certain pre-tightening force for the inside of the shock absorber, so that the shock absorber is not separated even if it is subjected to a certain impact during transportation and construction, the shock absorber is not subjected to force during normal working, the mechanical buckle is prevented from being damaged, the shock absorber is in a free state during maintenance, the mechanical buckle is reset to provide pre-tightening force, the components of the shock absorber are connected, and the shock absorber is convenient to take out. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1A cross-sectional view of a free state of a waterproof, liquid leakage prevention, and separation prevention damper according to the embodiment;

[0022] Figure 2 A cross-sectional view of a free state of a waterproof, liquid leakage prevention, and separation prevention damper according to the embodiment; Figure 1 A cross-sectional view of a pre-pressing state of a waterproof, liquid leakage prevention, and separation prevention damper;

[0023] Figure 3 A cross-sectional view of a free state of a waterproof, liquid leakage prevention, and separation prevention damper according to the embodiment.

[0024] In the figure: 10, upper assembly; 11, waterproof baffle ring; 12, first spring baffle ring; 20, conical sealing sleeve; 30, lower assembly; 31, second spring baffle ring; 40, spring; 50, mechanical buckle; 51, torsion hook; 52, penetrating pin; 60, outer sleeve; 70, floating plate; 80, foundation. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described 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 labor fall within the scope of protection of the present application.

[0026] Please refer to Figure 1 A waterproof, liquid leakage prevention, and separation prevention damper can include an upper assembly 10, a lower assembly 30, damping liquid, a spring 40, and a mechanical buckle 50. The upper assembly 10 and the lower assembly 30 can be pre-assembled and connected together by the mechanical buckle 50. An inner cavity for installing the spring 40 and containing the damping liquid is formed between the upper assembly 10 and the lower assembly 30. The lower assembly 30 is provided with a damping cylinder cover for the spring 40, so that it can play a certain protective role on the spring. The top section of the conical sealing sleeve 20 is set as a conical frustum, and the bottom section of the conical sealing sleeve 20 is set as a cylindrical shape. The upper end of the conical sealing sleeve 20 can be inserted into the upper assembly 10, and the lower end of the conical sealing sleeve 20 can be sleeved on the top end of the lower assembly 30 and connected with it.

[0027] In the embodiment, the mechanical buckle 50 comprises a twist hook 51 and a through pin 52. The through pin 52 is fixedly connected below the upper assembly 10, the twist hook 51 is fixedly connected above the lower assembly 30, and the twist hook 51 is formed with a step on the side facing the through pin 52 to hook the through pin 52, so that the damper can be hooked by the twist hook 51 during transportation and construction, thereby providing pre-connection for the upper assembly 10 and the lower assembly 30 to avoid separation of the damper during transportation and construction. When the damper is installed and used, the twist hook 51 and the through pin 52 can be separated, so that the mechanical buckle 50 does not provide stress and does not affect the performance of the damper.

[0028] Referring to Figure 2 and Figure 3 When the damper is assembled on site, a certain pressure can be applied to the upper assembly 10 and the lower assembly 30 from above, and the top section of the conical sealing sleeve 20 can be deformed by the extrusion of the upper assembly 10, so that the conical sealing sleeve 20 can block the gap between the upper assembly 10 and the lower assembly 30, thereby preventing the damper from leaking due to tilting during transportation or construction.

[0029] In the embodiment, the side of the upper assembly 10 facing the conical sealing sleeve 20 is formed with a waterproof baffle 11, which covers the outside of the top section of the lower assembly 30 and blocks the upper end opening of the lower assembly 30, so that the upper assembly 10 adopts the waterproof clock principle to block the accumulated water in the tunnel outside the damper chamber by using atmospheric pressure, and the waterproof baffle 11 can be used to prevent water from entering the damper. The conical sealing sleeve 20 is arranged between the waterproof baffle 11 and the lower assembly 30, and a circular positioning platform is formed on the inner wall of the connection between the conical section and the cylindrical section of the conical sealing sleeve 20, and the top end of the lower assembly 30 can be positioned against the positioning platform. In addition, the waterproof baffle 11 can also shield and protect the conical sealing sleeve 20.

[0030] In the embodiment, the side of the upper assembly 10 facing the conical sealing sleeve 20 is further formed with a first spring baffle 12 at the center, and the side of the lower assembly 30 facing the conical sealing sleeve 20 is further formed with a second spring baffle 31 at the center, the first spring baffle 12 and the second spring baffle 31 are coaxially distributed, and the first spring baffle 12 and the second spring baffle 31 cooperatively limit the spring 40, and the first spring baffle 12 and the second spring baffle 31 can make the conical sealing sleeve 20 bear force uniformly. In addition, the first spring baffle 12, the second spring baffle 31, the waterproof baffle 11, the conical sealing sleeve 20 and the spring 40 can cooperate to limit the relative position of the upper assembly 10 and the lower assembly 30, thereby avoiding excessive dislocation between the upper assembly 10 and the lower assembly 30.

[0031] In the embodiment, the spring 40 can pass through the middle cavity of the positioning table, and the upper end of the spring 40 is in contact with the upper assembly 10, and the lower end of the spring 40 is in contact with the lower assembly 30, so that only the spring provides a supporting force during the operation of the shock absorber, and the working stress curve of the shock absorber is stable.

[0032] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be described one by one here. In the above, whenever it is mentioned that it is fixedly connected, it is preferred to consider welding. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof, leak-proof, and separation-proof damping shock absorber, comprising an upper component (10), a lower component (30), a damping fluid, and a spring (40), wherein the upper component (10) and the lower component (30) are assembled and connected, and an inner cavity for installing the spring (40) and containing the damping fluid is formed between the upper component (10) and the lower component (30), characterized in that: The utility model also includes a conical sealing sleeve (20) arranged between the upper component (10) and the lower component (30), wherein the top section of the conical sealing sleeve (20) is arranged in a frustum shape, and the upper end of the conical sealing sleeve (20) is inserted into the upper part of the upper component (10); the bottom section of the conical sealing sleeve (20) is arranged in a cylindrical shape, and the lower end of the conical sealing sleeve (20) is sleeved on the top of the lower component (30) and fixedly connected thereto; after a certain pressure is applied between the upper component (10) and the lower component (30), the top section of the conical sealing sleeve (20) can be deformed, and the conical sealing sleeve (20) is used for sealing between the upper component (10) and the lower component (30).

2. The waterproof, leak-proof, and separation-proof damping vibration absorber according to claim 1, characterized in that: It also includes a mechanical buckle (50), which is used for the combined connection between the upper component (10) and the lower component (30).

3. The waterproof, leak-proof, and separation-proof damping vibration absorber according to claim 2, characterized in that: The mechanical buckle (50) includes a twist hook (51) and a through pin (52), wherein the through pin (52) is fixedly connected to the lower part of the upper component (10), and the twist hook (51) is fixedly connected to the upper part of the lower component (30), and a step for hooking the through pin (52) is formed on the side of the twist hook (51) facing the through pin (52).

4. The waterproof, leak-proof, and separation-proof damping vibration absorber according to claim 1, characterized in that: A waterproof retaining ring (11) is formed on one side of the upper component (10) facing the conical sealing sleeve (20), and the waterproof retaining ring (11) is arranged on the outside of the top section of the lower component (30). The conical sealing sleeve (20) is arranged between the waterproof retaining ring (11) and the lower component (30).

5. A waterproof, leak-proof, and separation-proof damping vibration absorber according to claim 1 or 4, characterized in that: A circular positioning platform is formed on the inner wall of the connection between the frustum-shaped part and the cylindrical part of the conical sealing sleeve (20), and the top end of the lower component (30) abuts against the positioning platform.

6. The waterproof, leak-proof, and separation-proof damping vibration absorber according to claim 5, characterized in that: The spring (40) passes through the central cavity of the positioning platform, the upper end of the spring (40) contacts the upper component (10), and the lower end of the spring (40) contacts the lower component (30).

7. The waterproof, leak-proof, and separation-proof damping vibration absorber according to claim 6, characterized in that: A first spring retaining ring (12) is formed at the center of one side of the upper component (10) facing the conical sealing sleeve (20), and a second spring retaining ring (31) is formed at the center of one side of the lower component (30) facing the conical sealing sleeve (20). The first spring retaining ring (12) and the second spring retaining ring (31) are coaxially distributed, and the first spring retaining ring (12) and the second spring retaining ring (31) cooperate to limit the spring (40).

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