Novel modularized sleeve type air spring

Abstract

The utility model discloses a novel modularized sleeve type air spring which comprises a first shell, a first plastic connecting rod connected to the outer surface of the center of the first shell in a sleeved mode, a leather bag connected to the inner side face of the first plastic connecting rod in a sleeved mode, a second shell connected to the outer surface of one end of the leather bag in a sleeved mode and a second plastic connecting rod connected to the inner side of the second shell in a sleeved mode. According to the utility model, the parts can be quickly dismounted only by applying external force to the plastic buckle to enable the plastic connecting rod to rebound, and shells and leather bags with different sizes can be replaced while different parts can be replaced. If the stroke of the product needs to be increased, the stroke of the product can be increased by replacing a leather bag with a longer leather bag; the bearing capacity of the product can be increased by replacing a leather bag with a larger inflatable outer diameter or replacing a larger shell; in order to change the rigidity of the product, a special-shaped low-rigidity shell is replaced. And the user can select and purchase the required parts for assembly according to the requirements of the user, so that various requirements of the user can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeve air springs, in particular to a new modular sleeve air spring. Background Art

[0002] There are mainly three types of air springs: bladder type, diaphragm type and sleeve type. The sleeve air spring is mainly applied to the elastic element (i.e., air spring or other springs) in the cab suspensions of sedans, medium trucks and heavy trucks, which plays a core role in the comfort of drivers.

[0003] The existing sleeve air springs mainly fix the leather bag on the parts by compressing the metal ring through a pipe press. If the leather bag or other parts are damaged, only the whole air spring can be replaced, resulting in high maintenance costs. Therefore, it is necessary to develop a modular sleeve air spring to replace the parts of the sleeve air spring and meet the personalized needs of customers. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a new modular sleeve air spring to solve the problem in the above background art that the existing sleeve air springs mainly fix the leather bag on the parts by compressing the metal ring through a pipe press. If the leather bag or other parts are damaged, only the whole air spring can be replaced, resulting in high maintenance costs.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a new modular sleeve air spring, including:

[0007] A first outer shell, a first plastic connecting rod sleeved on the outer surface of the center of the first outer shell, a leather bag sleeved on the inner side of the first plastic connecting rod, a second outer shell sleeved on the outer surface of one end of the leather bag, and a second plastic connecting rod sleeved on the inner side of the second outer shell.

[0008] Further, one end of the first outer shell is provided with a first step and a first counterbore. The first counterbore is located inside the first step, and a first conical surface is provided on the first counterbore. A first anti-slip groove is provided on the first conical surface.

[0009] Further, a first plastic buckle is provided on the inner side of the outer end of the first plastic connecting rod. A first boss is provided at one end of the first plastic connecting rod. An air inlet nozzle is provided at the outer end of the first plastic connecting rod. A second conical surface is provided on the first boss. A second anti-slip groove is provided on the second conical surface.

[0010] Further, a first port and a second port are respectively provided at both ends of the leather bag.

[0011] Further, one end of the second housing is provided with a second step and a second counterbore. The second counterbore is located inside the second step, and the second counterbore is provided with a third conical surface, and the third conical surface is provided with a third anti-slip groove.

[0012] Further, the inner end of the outer side of the second plastic connecting rod is provided with a second plastic buckle. One end of the second plastic connecting rod is provided with a second boss, and the second boss is provided with a fourth conical surface, and the fourth conical surface is provided with a fourth anti-slip groove.

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

[0014] For the present utility model, only an external force needs to be applied to the plastic buckle to make the plastic connecting rod rebound, and the parts can be quickly disassembled. While different parts can be replaced, different-sized housings and bellows can also be replaced. For example, if it is necessary to increase the stroke of the product, a bellows with a longer length can be replaced to increase the stroke of the product; if it is desired to increase the load-bearing capacity of the product, a bellows with a larger inflated outer diameter can be replaced, or a larger housing can be replaced to achieve this; if it is desired to change the stiffness of the product, a special-shaped housing with low stiffness can be replaced. Users can select the parts they need for assembly according to their own needs, which can meet various needs of users. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a cross-sectional view of the present utility model.

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. First housing; 2. First plastic connecting rod; 3. Bellows; 4. Second housing; 5. Second plastic connecting rod. Detailed Embodiments

[0019] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the detailed embodiments of the present utility model will be described in detail below with reference to the drawings.

[0020] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0021] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0022] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Please refer to Figure 1 As shown, this embodiment is a new type of modular sleeve air spring, including:

[0024] A first outer shell 1, a first plastic connecting rod 2 sleeved on the outer surface of the center of the first outer shell 1, a leather bag 3 sleeved on the inner side surface of the first plastic connecting rod 2, a second outer shell 4 sleeved on the outer surface of one end of the leather bag 3, and a second plastic connecting rod 5 sleeved on the inner side position of the second outer shell 4;

[0025] The first outer shell 1, the first plastic connecting rod 2, the leather bag 3, the second outer shell 4, and the second plastic connecting rod 5 are used to form a sleeve air spring;

[0026] One end of the first outer shell 1 is provided with a first step and a first counterbore. The first counterbore is located inside the first step, and a first conical surface is provided on the first counterbore, and a first anti-slip groove is provided on the first conical surface;

[0027] The first outer shell 1 is used to support one end of the first plastic connecting rod 2 and the leather bag 3;

[0028] A first plastic buckle is provided on the inner side of the outer end of the first plastic connecting rod 2. A first boss is provided at one end of the first plastic connecting rod 2. An air inlet nozzle is provided at the outer end of the first plastic connecting rod 2, and a second conical surface is provided on the first boss, and a second anti-slip groove is provided on the second conical surface;

[0029] The first plastic buckle has a certain elasticity and can be deformed by a certain external force and return to its original state when the external force is withdrawn. The air inlet nozzle is used for inflating and deflating the product, the first boss is used to engage with the first plastic buckle, and the taper of the first conical surface and the second conical surface is equal;

[0030] First ports and second ports are respectively provided at both ends of the leather bag 3;

[0031] The leather bag 3 is respectively located inside the first counterbore and the second counterbore;

[0032] One end of the second outer shell 4 is provided with a second step and a second counterbore. The second counterbore is located inside the second step, and a third conical surface is provided on the second counterbore, and a third anti-slip groove is provided on the third conical surface;

[0033] The second outer shell 4 is used to support the second plastic connecting rod 5 and the other end of the airbag 3;

[0034] A second plastic buckle is provided at the inner end of the outer side of the second plastic connecting rod 5. One end of the second plastic connecting rod 5 is provided with a second boss, and a fourth conical surface is provided on the second boss. A fourth anti-slip groove is provided on the fourth conical surface;

[0035] The second plastic buckle has a certain elasticity and can be deformed by a certain external force and return to its original state when the external force is withdrawn. The second boss is used to engage with the second plastic buckle, and the taper of the third conical surface and the fourth conical surface is equal;

[0036] Working principle: The first plastic connecting rod 2 and the first outer shell are cooperated to press the first port of the airbag 3. The first plastic buckle of the second plastic connecting rod 2 is used in cooperation with the first step of the first outer shell 1 to fix the first plastic connecting rod 2, so that the first plastic connecting rod 2 continuously presses the airbag 3. The airbag 3 is deformed by the force, and part of the rubber on the surface of the airbag 3 will be squeezed into the first anti-slip groove and the second anti-slip groove, so as to increase the contact area on the surface of the airbag 3 and improve the surface friction between the airbag 3 and the first outer shell 1 and the first plastic connecting rod 2, so that the airbag 3 will not slip out. Then, the second plastic connecting rod 5 and the second outer shell 4 are cooperated to press the second port of the airbag 3. The second plastic buckle of the second plastic connecting rod 5 is used in cooperation with the second step of the second outer shell 4 to fix the second plastic connecting rod 5, so that the second plastic connecting rod 5 continuously presses the airbag 3. The airbag 3 is deformed by the force, and part of the rubber on the surface of the airbag 3 will be squeezed into the third anti-slip groove and the fourth anti-slip groove, so as to increase the contact area on the surface of the airbag 3 and improve the surface friction between the airbag 3 and the second outer shell 4 and the second plastic connecting rod 5, so that the airbag 3 will not slip out. When the first boss of the first plastic connecting rod 2 and the first counterbore of the first outer shell 1 press the airbag 3, when the first plastic buckle of the first plastic connecting rod 2 passes through the first step of the first outer shell, the first plastic buckle is stuck on the first step, so that the first plastic connecting rod 2 cannot rebound, and the first plastic connecting rod 2 can be kept in a state of pressing the airbag 3, and sufficient friction can be maintained so that the airbag 3 will not slip out under force, so as to achieve the effect of fixing the airbag 3. The principle of the second plastic connecting rod 4 and the second outer shell 5 when pressing the airbag 3 is the same. Both ports of the airbag 3 are pressed by the plastic connecting rod and the outer shell, and the rubber of the airbag 3 has elasticity, so it can play a sealing role. Sealing at both ends of the airbag 3 can form a closed air chamber, so it can form an air spring;

[0037] Applying an external force to the plastic buckle to deform the plastic buckle and disengage it from the step of the outer shell can separate the parts, enabling quick removal of the parts and replacement of the corresponding parts. Reassembly is to pull the plastic buckle to a preset position and lock it to the step of the outer shell to complete the assembly.

[0038] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel modular sleeve air spring, characterized in that, Comprising: A first outer shell (1), a first plastic connecting rod (2) sleeved on the central outer surface of the first outer shell (1), a leather bag (3) sleeved on the inner side surface of the first plastic connecting rod (2), a second outer shell (4) sleeved on the outer surface position of one end of the leather bag (3), and a second plastic connecting rod (5) sleeved on the inner side position of the second outer shell (4).

2. A novel modular sleeve air spring according to claim 1, characterized in that, One end of the first outer shell (1) is provided with a first step and a first counterbore. The first counterbore is located inside the first step, and a first conical surface is provided on the first counterbore. A first anti-slip groove is provided on the first conical surface.

3. A novel modular sleeve air spring according to claim 1, characterized in that, A first plastic buckle is provided on the inner side of the outer end of the first plastic connecting rod (2). A first boss is provided at one end of the first plastic connecting rod (2). An air inlet nozzle is provided at the outer end of the first plastic connecting rod (2). A second conical surface is provided on the first boss. A second anti-slip groove is provided on the second conical surface.

4. A novel modular sleeve air spring according to claim 1, characterized in that, A first port and a second port are respectively provided at both ends of the leather bag (3).

5. A novel modular sleeve air spring according to claim 1, characterized in that, One end of the second outer shell (4) is provided with a second step and a second counterbore. The second counterbore is located inside the second step, and a third conical surface is provided on the second counterbore. A third anti-slip groove is provided on the third conical surface.

6. A novel modular sleeve air spring according to claim 1, characterized in that, A second plastic buckle is provided on the inner end of the outer side of the second plastic connecting rod (5). A second boss is provided at one end of the second plastic connecting rod (5). A fourth conical surface is provided on the second boss. A fourth anti-slip groove is provided on the fourth conical surface.

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