Air spring bag with end sealing and buckle pressing structure for application thereof

Abstract

The utility model discloses an air spring bag of end sealing and its application buckle and press structure, including bag body, the bag body has the middle part and the end part at the both ends of middle part, the middle part includes the outer rubber layer, first rubber curtain cloth layer, second rubber curtain cloth layer and inner rubber layer from outside to inside setting, the outer rubber layer and inner rubber layer of middle part extend to end part and mutually paste, the outer rubber layer of end part is equipped with the outer additional rubber layer, and / or the inner rubber layer in end part is equipped with the inner additional rubber layer. Through the setting of end part, even if cutting the end part of bag body also can not expose the cord, and through the outer rubber layer and inner rubber layer of middle part extend to end part, and constitute the inner layer structure of end part to realize the protection to the first rubber curtain cloth layer and second rubber curtain cloth layer of middle part, because cutting the end part can not expose the cord, therefore, when installing the bag, need not turn over and pack the pressure ring, can widen the application scope of product.

Description

Technical Field

[0001] This utility model relates to the technical field of shock absorber-related components, and in particular to an end-sealed air spring bladder and its application of a clamping structure. Background Technology

[0002] The air spring bladder is a structure mounted on a plastic base. Existing air spring bladder structures are as follows: Figure 1 As shown, from the outside to the inside, it includes an outer rubber layer 1, a first rubber cord layer 2, a second rubber cord layer 3, and an inner rubber layer 4. Both the first rubber cord layer 2 and the second rubber cord layer 3 include rubber and cords embedded in the rubber, which results in the cords being exposed after the bladder is cut off. However, if some ends are pressed on the inside, the high-pressure gas will run through the entire bladder along the cords after the product is inflated, causing the product to fail.

[0003] like Figure 2 The air spring shown generally includes a plastic base 9, and a bladder is wrapped around the plastic base 9. The bladder is fixed to the plastic base 9 by a pressure ring 10. Since there are exposed cords, the bladder needs to be crimped and then rolled up. This adds an extra layer of bladder at the crimping point. This structure has no impact under normal circumstances, but when the installation space of the air spring is limited, this crimping method compresses the usable space of the air spring. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes an end-sealed air spring bladder and its application in a buckling structure.

[0005] This utility model proposes an end-sealed air spring bladder and its application of a buckling structure, which includes a bladder body. Unlike existing structures, the bladder body has a middle part, an end part, and two ends located at the two ends of the middle part.

[0006] The intermediate part includes an outer adhesive layer, a first adhesive fabric layer, a second adhesive fabric layer, and an inner adhesive layer arranged from the outside to the inside.

[0007] The outer and inner adhesive layers in the middle section extend to the ends and are bonded together.

[0008] An external additional adhesive layer is provided outside the outer adhesive layer of the end, and / or an internal additional adhesive layer is provided inside the inner adhesive layer of the end.

[0009] As a further optimization of this utility model, the thickness of the end portion is equal to the thickness of the middle portion.

[0010] As a further optimization of this utility model, the thickness of the portion of the first adhesive fabric layer near the end gradually increases from the end near the end to the end away from the end; and / or, the thickness of the portion of the second adhesive fabric layer near the end gradually increases from the end near the end to the end away from the end.

[0011] As a further optimization of this utility model, the outer diameter of the first adhesive fabric layer near the end gradually increases from the end near the end to the end away from the end; and / or, the inner diameter of the second adhesive fabric layer near the end gradually decreases from the end near the end to the end away from the end.

[0012] As a further optimization of this utility model, the middle part and the end part form a cylindrical bladder body.

[0013] As a further optimization of this utility model, the middle part and the end part form a conical bladder body.

[0014] As a further optimization of this utility model, the middle part is conical and the end part is cylindrical.

[0015] A clamping structure includes a plastic base and the aforementioned end-sealed air spring bladder. The plastic base has an installation ring groove with anti-dislodgement teeth inside. The bladder body is sleeved outside the installation ring groove, and a pressure ring is sleeved outside the bladder body and opposite to the installation ring groove to fix the bladder body to the plastic base.

[0016] As a further optimization of this utility model, both the end portion and the middle portion have a part located within the mounting ring groove.

[0017] In this invention, the proposed end-sealed air spring bladder and its clamping structure ensure that even if the end of the bladder body is cut, the cord will not be exposed. Furthermore, the outer and inner rubber layers in the middle section extend to the end and form the inner layer structure of the end, thereby protecting the first and second rubber cord layers in the middle section. Since the cord will not be exposed when the end is cut, there is no need to turn the pressure ring over when installing the bladder, which can broaden the application range of the product. In addition, the pressure ring has a portion covering the end and the middle section, thereby increasing the sealing performance.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of a skin capsule in the prior art;

[0020] Figure 2 This is a schematic diagram of the connection structure between the bladder and the plastic base in the existing technology.

[0021] Figure 3 This is a schematic diagram of the structure of this utility model;

[0022] Figure 4 This is a partial enlarged view of part A of the present invention;

[0023] Figure 5 This is a schematic diagram of the buckling structure of this utility model;

[0024] 1. Outer adhesive layer; 2. First adhesive fabric layer; 3. Second adhesive fabric layer; 4. Inner adhesive layer; 5. Outer additional adhesive layer; 6. Inner additional adhesive layer; 7. Middle part; 8. End; 9. Plastic base; 10. Pressure ring; 11. Mounting ring groove; 12. Anti-loosening teeth. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] like Figure 3 - Figure 4 The buckling structure of the end-sealed air spring bladder and its application shown includes a bladder body having a middle portion 7 and end portions 8 located at both ends of the middle portion 7.

[0027] The middle part 7 includes an outer rubber layer 1, a first rubber cord layer 2, a second rubber cord layer 3 and an inner rubber layer 4 arranged from the outside to the inside. The first rubber cord layer 2 and the second rubber cord layer 3 both include rubber and cords embedded in the rubber.

[0028] The outer adhesive layer 1 and the inner adhesive layer 4 of the middle part 7 extend to the end 8 and are bonded to each other. The extended outer adhesive layer 1 and the inner adhesive layer 4 cover the first adhesive fabric layer 2 and the second adhesive fabric layer 3 of the middle part 7.

[0029] An outer adhesive layer 5 is provided outside the outer adhesive layer 1 of the end 8, and / or an inner adhesive layer 6 is provided inside the inner adhesive layer 4 of the end 8. In this embodiment, in order to ensure stability, an outer adhesive layer 5 is provided outside the outer adhesive layer 1, and an inner adhesive layer 6 is provided inside the inner adhesive layer 4. It should be noted that the length of the end 8 can be set according to the actual situation.

[0030] The end 8 of the scabbard body of this utility model includes an outer adhesive layer 1, an inner adhesive layer 4, an outer additional adhesive layer 5, and an inner additional adhesive layer 6. Therefore, adjusting the overall length of the scabbard body at the cut end 8 will not cause the curtain wires to be exposed. Thus, when installing the scabbard, it is not necessary to wrap the scabbard body with the pressure ring 10, thereby expanding its application range.

[0031] Preferably, the thickness of the end portion 8 is equal to the thickness of the middle portion 7, thereby ensuring the consistency of product thickness and facilitating overall stability.

[0032] Preferably, the thickness of the first adhesive cord layer 2 near the end 8 gradually increases from the end near the end 8 to the end away from the end 8; the thickness of the second adhesive cord layer 3 near the end 8 gradually increases from the end near the end 8 to the end away from the end 8, thereby increasing the contact area between the outer adhesive layer 1 and the inner adhesive layer 4 and the first adhesive cord layer 2 and the second adhesive cord layer 3, and ensuring stability.

[0033] Furthermore, the contact area between the outer adhesive layer 5 and the inner adhesive layer 6 and the outer adhesive layer 1 and the inner adhesive layer 4 can be increased to enhance the stability of the connection.

[0034] Preferably, the outer diameter of the first adhesive fabric layer 2 near the end 8 gradually increases from the end near the end 8 to the end away from the end 8; and the inner diameter of the second adhesive fabric layer 3 near the end 8 gradually decreases from the end near the end 8 to the end away from the end 8, thereby ensuring the stability of the connection between the first adhesive fabric layer 2 and the second adhesive fabric layer 3.

[0035] In some embodiments where a cylindrical bladder is required, the middle portion 7 and the end portion 8 are formed into a cylindrical bladder body.

[0036] In some embodiments where a conical bladder is required, the middle portion 7 and the end portion 8 form a conical bladder body, which is not shown in the figure since the conical bladder body is existing.

[0037] In some embodiments, the middle portion 7 is tapered and the end portion 8 is cylindrical, as not shown in the above shape diagram.

[0038] like Figure 5The shown clamping structure includes a plastic base 9 and an air spring bladder with an end seal. The plastic base 9 has a mounting ring groove 11 with anti-dislodgement teeth 12 inside. The bladder body is fitted over the mounting ring groove 11, and a pressure ring 10 is fitted over the bladder body and opposite the mounting ring groove 11, fixing the bladder body to the plastic base 9. Preferably, the end face of the bladder end 8 is on the same plane as the upper end face of the plastic base 9. Since the bladder end 8 is inside the high-pressure gas, the end-sealed bladder functions to form a sealing structure. Simultaneously, since the end 8 does not have a cord, the bladder does not wrap around the pressure ring 10 as in existing systems, thus increasing the internal gap of the bladder and expanding the product's usability.

[0039] Preferably, both the end portion 8 and the middle portion 7 have portions located within the mounting ring groove 11, further ensuring the stability of the seal.

[0040] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An end-sealed air spring bladder comprising a bladder body, characterized by, The sac body has a middle portion (7) and end portions (8) located at both ends of the middle portion (7); The middle part (7) includes an outer adhesive layer (1), a first adhesive fabric layer (2), a second adhesive fabric layer (3), and an inner adhesive layer (4) arranged from the outside to the inside. The outer adhesive layer (1) and inner adhesive layer (4) of the middle part (7) extend to the end (8) and are bonded to each other; An external adhesive layer (5) is provided outside the outer adhesive layer (1) of the end (8), and / or an internal adhesive layer (6) is provided inside the inner adhesive layer (4) of the end (8).

2. The air spring bladder with end sealing according to claim 1, characterized in that, The thickness of the end portion (8) is equal to the thickness of the middle portion (7).

3. The end-sealed air spring bladder of claim 1, wherein, The thickness of the portion of the first adhesive fabric layer (2) near the end (8) gradually increases from the end near the end (8) to the end away from the end (8); and / or, the thickness of the portion of the second adhesive fabric layer (3) near the end (8) gradually increases from the end near the end (8) to the end away from the end (8).

4. The end-sealed air spring bladder of claim 3, wherein, The outer diameter of the first adhesive fabric layer (2) near the end (8) gradually increases from the end near the end (8) to the end away from the end (8); and / or, the inner diameter of the second adhesive fabric layer (3) near the end (8) gradually decreases from the end near the end (8) to the end away from the end (8).

5. The end-sealed air spring bladder of claim 1, wherein, The middle part (7) and the end part (8) form a cylindrical bladder body.

6. The end-sealed air spring bladder of claim 1, wherein, The middle part (7) and the end part (8) form a cone-shaped sac body.

7. The end-sealed air spring bladder of claim 1, wherein, The middle part (7) is conical, and the end part (8) is cylindrical.

8. A press-in structure, characterized by The device includes a plastic base (9) and an air spring bladder with an end seal as described in any one of claims 1-7. The plastic base (9) has an installation ring groove (11) and an anti-dislodgement tooth (12) is provided in the installation ring groove (11). The bladder body is sleeved outside the installation ring groove (11), and a pressure ring (10) is sleeved outside the bladder body and opposite to the installation ring groove (11) to fix the bladder body on the plastic base (9).

9. The push structure according to claim 8, wherein Both the end portion (8) and the middle portion (7) have a portion located within the mounting annular groove (11).

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