Multi-segment variable length balloon catheter

Abstract

The utility model provides a multi -section type variable length skin bag guide sleeve, and the skin bag guide sleeve includes first section, second section and third section connected in proper order, the skin bag of air spring is connected to first section buckle pressure, second section is detachably connected between first section and third section, and third section is connected on the structural member of air spring. First section sets up as the buckle pressure section of skin bag guide sleeve, second section sets up as the variable length section of skin bag guide sleeve, and third section sets up as the tail section of skin bag guide sleeve. The utility model discloses a segmented structure and detachable connection mode are used, make the second section of skin bag guide sleeve be variable length section, adapt to the air spring of different height, after using failure, the first section that is buckle pressure section is dismantled and replaced, make the second section that is variable length section and third section that is tail section can continue to use, to solve the demand of skin bag guide sleeve adaptation different height air spring, reduce the development cost and shorten the development cycle problem simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of air spring technology, and in particular to a multi-segment variable length bladder guide sleeve. Background Technology

[0002] As people's demands for passenger vehicle comfort continue to increase, air springs, as a key elastic component, are being used more and more widely in vehicles. In particular, dual-chamber air springs, due to their ability to significantly improve vehicle stability and comfort, have become the mainstream configuration in the current passenger vehicle market. With technological advancements, multi-chamber air springs are gradually becoming an important means of improving vehicle performance, which presents new challenges to the design and development of the air spring's key component—the air spring guide sleeve.

[0003] As a crucial component of air springs, the bladder guide sleeve accounts for a significant proportion of the overall development cost. Traditional bladder guide sleeves typically employ a fixed-length design. This often necessitates redesign and remanufacturing to meet the demands of air springs at varying heights, increasing both design and development costs and extending the development cycle. Furthermore, if the bladder guide sleeve deforms during the crimping process, the entire sleeve must be scrapped, further increasing development costs and wasting resources. Therefore, optimizing the design of the bladder guide sleeve to adapt to the needs of air springs at different heights, while simultaneously reducing development costs and shortening the development cycle, has become a pressing issue in the field of air spring technology.

[0004] It should be noted that the information disclosed in the above background section is only used to enhance the understanding of the background of this utility model and does not constitute any limitation on this utility model. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, this utility model provides a multi-segment variable length air spring guide sleeve. By adopting a segmented structure and a detachable connection method, the second segment of the air spring guide sleeve is a variable length segment, which can be adapted to air springs of different heights. After the first segment, i.e. the clamping segment, fails, it can be disassembled and replaced, so that the second segment, i.e. the variable length segment, and the third segment, i.e. the tail segment, can continue to be used. This solves the problem of the air spring guide sleeve adapting to air springs of different heights, while reducing development costs and shortening the development cycle.

[0006] This utility model provides a multi-segment variable length bladder guide sleeve, which includes a first segment, a second segment and a third segment connected in sequence. The first segment is snapped onto the bladder of the air spring, the second segment is detachably connected between the first segment and the third segment, and the third segment is connected to the structural component of the air spring.

[0007] In one embodiment of the present invention, the first segment is configured as the crimping segment of the bladder guide sleeve, the second segment is configured as the variable length segment of the bladder guide sleeve, and the third segment is configured as the tail segment of the bladder guide sleeve.

[0008] In one embodiment of this utility model, the first segment is a variable diameter segment, and the second and third segments are equal diameter segments.

[0009] In one embodiment of this utility model, the lengths of the first segment and the third segment are fixed, while the second segment has a different length.

[0010] In one embodiment of this utility model, the bladder guide sleeve is matched with air springs of different lengths by connecting a second section of different lengths.

[0011] In one embodiment of this utility model, the adjacent ends of the first segment, the second segment, and the third segment are set to have the same diameter.

[0012] In one embodiment of the present invention, adjacent ends of the first segment, the second segment and the third segment are provided with mutually meshing internal or external threads, so that the second segment is connected to the first segment and the third segment by threads.

[0013] In one embodiment of the present invention, a fourth segment is further included, which is connected between the first segment and the third segment, and is threadedly connected to the second segment and the third segment or the first segment.

[0014] In one embodiment of the present invention, the fourth segment is configured as a variable diameter segment, which connects the second and third segments with different diameters.

[0015] In one embodiment of this utility model, the first segment, the second segment, and the third segment are made of metal.

[0016] The beneficial effects of this utility model are as follows: By adopting a segmented structure and a detachable connection method, the second segment of the air spring guide sleeve is a variable length segment, which can provide different length specifications to adjust the total length of the guide sleeve to adapt to air springs of different heights. The second segment is connected to the first and third segments by threads, which facilitates disassembly and replacement after the first segment, i.e., the crimping segment, fails. This allows the second segment (variable length segment) and the third segment (tail segment) to be removed and reused, with only the crimping segment being scrapped, thus reducing the development cost and resource consumption of the air spring guide sleeve.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the bladder guide sleeve of this utility model;

[0020] Figure 2 This is a diagram of the scabbard guide sleeve of this utility model;

[0021] Figure 3 This is a cross-sectional view of the bladder guide sleeve of this utility model in one embodiment.

[0022] In the diagram: 1. First segment; 2. Second segment; 3. Third segment; 4. Fourth segment; 10. Internal thread; 20. External thread. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model.

[0024] Please see Figures 1 to 3 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms used in this specification regarding position, quantity, etc., are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to these relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention's implementation.

[0025] Please see Figure 1This utility model provides a multi-segment variable-length air spring guide sleeve, which includes a first segment 1, a second segment 2, and a third segment 3 connected in sequence. The first segment 1 is snapped onto the air spring's air spring bladder, the second segment 2 is detachably connected between the first segment 1 and the third segment 3, and the third segment 3 is connected to the air spring's structural components. The first segment 1 serves as the snapping segment of the air spring guide sleeve, the second segment 2 serves as the variable-length segment of the air spring guide sleeve, and the third segment 3 serves as the tail segment of the air spring guide sleeve.

[0026] Specifically, in this embodiment of the invention, a bladder guide sleeve composed of a first segment 1, a second segment 2, and a third segment 3 connects the air spring's bladder and structural components at both ends, respectively, to provide support, guidance, and protection for the bladder within the air spring. The first segment 1, the clamping segment, is tightly fixed to the end of the bladder using a clamping process, ensuring that the bladder will not loosen or shift during operation. The second segment 2, the variable-length segment, can be detachably connected and fixed to the first segment 1 (clamping segment) and the third segment 3 (tail segment) via threads. This allows each segment to be securely tightened together while facilitating disassembly and replacement. The tail segment can be connected to the air spring's structural components using bolts or other appropriate fixing methods, ensuring the overall structural stability of the bladder guide sleeve.

[0027] More specifically, the first segment 1 can be tightly connected to the air spring's bladder using a crimping process. Through deformation during crimping, a tight mechanical connection is formed with the bladder, ensuring that the bladder will not loosen or shift during operation. The length and dimensions of the first segment 1, the crimped segment, are fixed to ensure the dimensional requirements of the crimping process. The first segment 1, the crimped segment, undergoes irreversible deformation after crimping and is therefore unusable, while the second segment 2, the variable-length segment, and the third segment 3, the tail segment, can be reused. The second segment 2 is detachably connected between the first segment 1 and the third segment 3. The second segment 2, the variable-length segment, is designed with different length specifications to adjust its effective length, increasing or decreasing the total length of the bladder guide sleeve to accommodate air springs of different heights. Both ends of the second segment 2, the variable-length segment, can be fixed to the first segment 1, the crimped segment, and the third segment 3, the tail segment, via threaded connections. The variable-length segment can be disassembled and reused, reducing development costs and resource waste. The third segment 3 is connected to the structural components of the air spring. The third segment 3, i.e. the tail segment, can be connected to the structural components of the air spring through bolts or other fixing methods to ensure the overall structural stability of the bladder guide sleeve and control the movement of the bladder within the structure of the air spring. The tail segment will not deform after the bladder guide sleeve is clamped and can be reused.

[0028] Thus, by connecting the first segment 1 (the crimping segment), the second segment 2 (the variable length segment), and the third segment 3 (the tail segment) of the multi-segment variable length air spring guide sleeve, and utilizing the length of the variable length segment guide sleeve, the total length of the air spring guide sleeve can be increased or decreased to accommodate air springs of different heights, thereby reducing the development cycle. Furthermore, after the air spring guide sleeve is crimped, the variable length segment and the tail segment can be removed and reused, only the crimping segment is discarded, significantly reducing the development cost of the air spring guide sleeve.

[0029] Please see Figures 1 to 2 In one embodiment, the first segment 1 is a variable diameter segment, while the second segment 2 and the third segment 3 are equal diameter segments. The lengths of the first segment 1 and the third segment 3 are fixed, while the second segment 2 has different lengths. The bladder guide sleeve is matched with air springs of different lengths by connecting the second segments 2 of different lengths.

[0030] Specifically, in this embodiment of the invention, the variable diameter section of the first segment 1 allows the air spring guide sleeve to adapt to air springs of different diameters and facilitates crimping connection with the end of the air spring, improving the applicability and flexibility of the guide sleeve. The variable diameter section is tightly connected to the air spring air spring through a crimping process. The second segment 2 is a constant diameter section with a variable length, available in different length specifications. By selecting different lengths of the second segment 2, the total length of the air spring guide sleeve can be increased or decreased to adapt to air springs of different lengths. The third segment 3 is a constant diameter section with a fixed length, and is connected to the air spring structural components through bolts or other fixing methods to ensure the overall structural stability of the air spring guide sleeve and to transmit the movement of the air spring to the air spring structural components.

[0031] Please see Figure 2 In one embodiment, the adjacent ends of the first segment 1, the second segment 2, and the third segment 3 are set to have the same diameter. The adjacent ends of the first segment 1, the second segment 2, and the third segment 3 are provided with mutually meshing internal threads 10 or external threads 20, so that the second segment 2 is connected to the first segment 1 and the third segment 3 by threads.

[0032] Specifically, in this embodiment of the invention, by setting the adjacent ends of the first segment 1, the second segment 2, and the third segment 3 to have the same diameter, concentricity and stability during connection are ensured. Furthermore, adjacent ends with the same diameter ensure a tight threaded connection, improving the overall strength and rigidity of the guide sleeve. The threaded connection design allows the second segment 2 to be tightly connected to the first segment 1 and the third segment 3, facilitating disassembly and replacement when needed. By selecting appropriate thread specifications and precision, the reliability and sealing of the connection can be ensured. (See attached...) Figure 2The cross-sectional view of the bladder guide sleeve shown indicates that its first section 1 (the crimping section) and third section 3 (the tail section) have external threads 20, while the second section 2 (the variable length section) has internal threads 10 at both ends. All three sections are tightened together using a threaded structure. Thus, by using threads of the same diameter that mesh with each other at adjacent ends, a secure connection and flexible adjustment between the sections are achieved. This threaded connection design not only improves the overall strength and rigidity of the guide sleeve but also ensures the reliability and sealing of the connection, allowing the bladder guide sleeve to adapt to the size requirements of different air springs.

[0033] Please see Figure 3 In one embodiment, a fourth segment 4 is further included. The fourth segment 4 is connected between the first segment 1 and the third segment 3, and is threadedly connected to the second segment 2 and the third segment 3 or the first segment 1. The fourth segment 4 is configured as a variable diameter segment, connecting the second segment 2 and the third segment 3 with different diameters. Specifically, the additional fourth segment 4, i.e., the variable diameter segment, enables a smooth transition when the bladder guide sleeve connects components of different diameters. It should be noted that the fourth segment 4 can also be a pipe segment with other functions, which can be configured accordingly based on the needs of the bladder guide sleeve.

[0034] Please see Figures 1 to 3 In one embodiment, the first segment 1, the second segment 2, and the third segment 3 are made of metal. By selecting metal as the material for all three segments of the air spring guide sleeve, the air spring guide sleeve is provided with the necessary strength and durability. Furthermore, metal guide sleeves are easier to manufacture to meet different design requirements and application needs. In the structure of an air spring, the application of metal guide sleeves can improve the overall structural stability and reliability, thereby extending its service life.

[0035] In summary, this utility model provides a multi-segment variable-length air spring guide sleeve. By employing a segmented structure and a detachable connection method, the air spring guide sleeve consists of a first segment, a second segment, and a third segment. The second segment is a variable-length segment, allowing for flexible adjustment of the total length of the guide sleeve by providing different length specifications to accommodate air springs of varying heights. The second segment is tightly connected to the first and third segments via threaded engagement, facilitating disassembly and replacement after the first segment (the crimping section) fails. This allows the second segment (the variable-length segment) and the third segment (the tail segment) to be removed and reused, with only the crimping section being discarded, thus reducing the development costs of the air spring guide sleeve.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multi-segment variable length bladder guide sleeve, the bladder guide sleeve comprising a first segment (1), a second segment (2) and a third segment (3) connected in sequence, the first segment (1) being snapped onto the bladder of an air spring, the second segment (2) being detachably connected between the first segment (1) and the third segment (3), and the third segment (3) being connected to the structural component of the air spring.

2. The scabbard guide sleeve according to claim 1, characterized in that, The first segment (1) is configured as the crimping segment of the sac guide sleeve, the second segment (2) is configured as the variable length segment of the sac guide sleeve, and the third segment (3) is configured as the tail segment of the sac guide sleeve.

3. The scabbard guide sleeve according to claim 1, characterized in that, The first segment (1) is a variable diameter segment, and the second segment (2) and the third segment (3) are equal diameter segments.

4. The scabbard guide sleeve according to claim 1, characterized in that, The lengths of the first segment (1) and the third segment (3) are fixed, while the second segment (2) has different lengths.

5. The scabbard guide sleeve according to claim 4, characterized in that, The bladder guide sleeve is matched with air springs of different lengths by connecting the second segment (2) of different lengths.

6. The scabbard guide sleeve according to claim 1, characterized in that, The adjacent ends of the first segment (1), the second segment (2) and the third segment (3) are set to have the same diameter.

7. The scabbard guide sleeve according to claim 6, characterized in that, The adjacent ends of the first segment (1), the second segment (2) and the third segment (3) are provided with intermeshing internal threads (10) or external threads (20), so that the second segment (2) is connected to the first segment (1) and the third segment (3) by threads.

8. The scabbard guide sleeve according to claim 1, characterized in that, It also includes a fourth segment (4), which is connected between the first segment (1) and the third segment (3) and is threadedly connected to the second segment (2) and the third segment (3) or the first segment (1).

9. The scabbard guide sleeve according to claim 8, characterized in that, The fourth segment (4) is configured as a variable diameter segment, which connects the second segment (2) and the third segment (3) with different diameters.

10. The scabbard sheath according to any one of claims 1-9, characterized in that, The first segment (1), the second segment (2) and the third segment (3) are made of metal.

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