Locking filter vent fitting for a seat

Abstract

The utility model discloses a locking type filter breather joint for seat belongs to the technical field of joint equipment. The breather joint includes the joint main part, is equipped with a plurality of guide grooves on the inner wall of the left side opening of joint main part, and a plurality of rotating grooves consistent with the number of guide grooves are equipped below a plurality of guide grooves. The filter core is installed in the left side inside of joint main part. The end cover is located in the left side inside of joint main part and is located in the left side of filter core, and a plurality of guide projections consistent with the number of guide grooves are equipped on the outer wall of end cover, and the guide projection is connected with the guide groove on the joint main part correspondingly. The release sleeve is installed in the right side inside of joint main part, and a plurality of clamping claws that are circumferentially distributed are equipped on one side end of release sleeve. The fastening copper ring cover is equipped on the outer wall of release sleeve, and the utility model discloses overall design guarantees efficient ventilation and filtering function, and has the advantages of sealing performance and pressure resistance, easy to assemble and disassemble, easy to maintain and the like, and comprehensively satisfies the long-term use demand on commercial vehicle seat.

Description

Technical Field

[0001] This utility model relates to a locking-type filter vent connector for seats, belonging to the technical field of connector equipment. Background Technology

[0002] With the widespread use of air-suspended seats in commercial vehicles, the use of ventilation connectors to connect air tanks to the seat's air circuit is also increasing. Currently, various ventilation connector products are available on the market that enable this connection. However, ventilation connectors commonly found in commercial vehicles typically only offer basic ventilation functions and generally suffer from a serious deficiency: a lack of effective filtration of compressed air. Because air tanks often contain contaminants such as moisture, oil, and rust particles, the cleanliness of the compressed air is relatively low. Existing connectors cannot intercept these impurities, allowing dirty air to directly enter the seat's air circuit system. This can cause blockages or jamming of the precision height control valve, leading to abnormal seat adjustment functions, slow response, and severely reduced ride comfort and operational reliability.

[0003] Furthermore, conventional venting connectors are inadequate in terms of pipe tightening force, sealing performance, pressure resistance, and temperature resistance, making it difficult to guarantee stable use throughout the entire vehicle's lifespan. Their short service life necessitates frequent replacements, increasing vehicle maintenance costs and potentially impacting the driving experience due to mid-journey malfunctions, ultimately negatively affecting the vehicle's operational economy and user satisfaction. Utility Model Content

[0004] To address the problems in existing technologies, such as the lack of effective filtration of compressed air, poor pipeline locking force, inadequate sealing performance, and poor pressure and temperature resistance, we propose a lockable filter vent connector for seats.

[0005] A locking-type filter vent connector for a seat, characterized in that the vent connector comprises:

[0006] The connector body 1 has several guide grooves 101 on the inner wall of the left opening, and several rotating grooves 102 with the same number of guide grooves 101 are provided below the several guide grooves 101.

[0007] Filter element 2, which is installed inside the left side of the connector body 1;

[0008] End cap 3 is installed inside the left side of connector body 1. The left side of filter element 2 is connected to the inside of the right side of end cap 3. The outer wall of end cap 3 is provided with a number of guide protrusions 301 that are the same number as guide grooves 101. The guide protrusions 301 are correspondingly connected to the guide grooves 101 on connector body 1. The guide protrusions 301 on end cap 3 are rotatably connected to connector body 1 through rotating grooves 102.

[0009] Release sleeve 4, the release sleeve 4 is installed inside the right side of the connector body 1, and a plurality of circumferentially distributed claws 401 are provided on one side end of the release sleeve 4;

[0010] The fastening copper ring 5 is sleeved on the outer wall of the release sleeve 4 and is interference-fitted into the inner wall of the right side of the connector body 1.

[0011] Furthermore, a support sleeve 103 is provided inside the right side of the connector body 1.

[0012] Furthermore, a first sealing ring 6 is interference-fitted onto the outer wall of the end cap 3.

[0013] Furthermore, a second sealing ring 7 is provided inside the right side of the connector body 1.

[0014] Furthermore, the inner wall of the fastening copper ring 5 located on one side of the claw 401 is a tapered inclined surface 501.

[0015] Furthermore, the end cap 3 is provided with a spring piece 302, which cooperates with the guide groove 101 to lock.

[0016] Furthermore, the end cap 3 is provided with a first inverted fir bamboo joint 303 at the joint.

[0017] Furthermore, the fastening copper ring 5 is provided with a second inverted fir bamboo joint 502.

[0018] Furthermore, each of the aforementioned claws 401 is provided with an outer undercut 4001 and an inner undercut 4002.

[0019] Furthermore, the filter element 2 has micron-sized pores inside.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model effectively filters impurities in the intake air by using a built-in low flow resistance filter element, ensuring clean compressed air and preventing system blockage and component wear from the source.

[0022] 2. This utility model adopts a locking sealing structure and a replaceable filter element design, which not only ensures the sealing performance and pressure bearing capacity under high pressure, but also realizes the convenient replacement of the filter element and extends the service life of the connector.

[0023] 3. This utility model relies on a C-shaped industrial quick-connect structure to realize the rapid insertion and disassembly of pipes, which greatly improves the efficiency of assembly and subsequent maintenance.

[0024] 4. This utility model significantly improves the pull-out resistance of the tube by optimizing the matching structure of the release sleeve and the fastening copper ring, ensuring a firm and reliable connection and adapting to vehicle vibration conditions.

[0025] 5. The overall design of this utility model ensures efficient ventilation and filtration while also possessing advantages such as sealing performance, pressure resistance, easy assembly and disassembly, and easy maintenance, fully meeting the long-term use requirements of commercial vehicle seats. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention, wherein... Figure 1 As shown in the abstract figure.

[0027] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle.

[0028] Figure 3 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0029] Figure 4 for Figure 3 An enlarged schematic diagram of 'a' in the diagram.

[0030] Figure 5 This is a schematic diagram of the structure of the connector body 1 in this utility model.

[0031] Figure 6 This is a schematic diagram of the structure of the middle end cover 3 of this utility model.

[0032] Figure 7 This is a schematic diagram of the release sleeve 4 in this utility model.

[0033] Figure 8 This is a cross-sectional schematic diagram of the fastening copper ring 5 in this utility model.

[0034] Figure 9 This is a preliminary assembly diagram of the middle end cover 3 along the guide groove 101 of this utility model.

[0035] Figure 10 This is a schematic diagram of the assembly of the middle end cover 3 after it rotates along the rotating groove 102.

[0036] Figure 11 This is a schematic diagram of the working condition of the present invention and the connecting pipe 8.

[0037] Figure 12 This is a three-dimensional structural diagram of the present invention and the connecting pipe 8.

[0038] Figure captions:

[0039] 1. Connector body; 101. Guide groove; 102. Rotating groove; 103. Support sleeve rod; 2. Filter element; 3. End cap; 301. Guide protrusion; 302. Spring piece; 303. First inverted fir bamboo joint; 4. Release sleeve; 401. Claw; 4001. Outer invert; 4002. Inner invert; 5. Fastening copper ring; 501. Conical bevel; 502. Second inverted fir bamboo joint; 6. First sealing ring; 7. Second sealing ring; 8. Connecting pipe. Detailed Implementation

[0040] The following is a specific embodiment of this utility model with reference to the accompanying drawings, and the structure of this utility model is described in detail. It should be noted that the scope of application of this utility model is not limited to the following embodiment; all similar structures based on this utility model are within the scope of application of this utility model.

[0041] One type of locking filter vent connector for seats according to this utility model, such as Figures 1-5 As shown, the vent connector includes:

[0042] The connector body 1 has several guide grooves 101 on the inner wall of the left opening, and several rotating grooves 102 with the same number of guide grooves 101 are provided below the several guide grooves 101.

[0043] Filter element 2, which is installed inside the left side of the connector body 1;

[0044] like Figure 6 As shown, end cap 3 is installed inside the left side of connector body 1. The left side of filter element 2 is connected to the inside of the right side of end cap 3. The outer wall of end cap 3 is provided with a number of guide protrusions 301 that are the same number as guide grooves 101. The guide protrusions 301 are correspondingly connected to the guide grooves 101 on connector body 1. The guide protrusions 301 on end cap 3 are rotatably connected to connector body 1 through rotating grooves 102.

[0045] Release sleeve 4 is installed inside the right side of the connector body 1. The release sleeve 4 has several circumferentially distributed claws 401 on one side end, and a deformation gap is left between two adjacent claws 401.

[0046] The fastening copper ring 5 is sleeved on the outer wall of the release sleeve 4 and is interference-fitted into the inner wall of the right side of the connector body 1.

[0047] As a further description of this embodiment, such as Figure 3 As shown, a support sleeve 103 is provided inside the right side of the connector body 1. The support sleeve 103 is used for the insertion of the connecting pipe 8 to achieve internal support of the connecting pipe 8.

[0048] As a further description of this embodiment, such as Figure 3 As shown, a first sealing ring 6 is installed on the outer wall of the end cap 3 with an interference fit. The first sealing ring 6 is also connected to the inner wall of the connector body 1 with an interference fit. The first sealing ring 6 is made of fluororubber or silicone rubber material with good low temperature resistance to ensure the low temperature sealing performance of the vent connector.

[0049] As a further description of this embodiment, such as Figure 3 As shown, a second sealing ring 7 is provided inside the right side of the connector body 1. The second sealing ring 7 is interference-fitted into the inner hole on the right side of the connector body 1 to ensure the seal between it and the connector body 1. The second sealing ring 7 is made of fluororubber or silicone rubber material with good low-temperature resistance to ensure the low-temperature sealing performance of the venting connector.

[0050] As a further description of this embodiment, such as Figures 3-4 As shown, the inner wall of the fastening copper ring 5 located on one side of the claw 401 is a tapered inclined surface 501.

[0051] As a further description of this embodiment, such as Figures 8-9 As shown, the end cap 3 is provided with a spring piece 302, which cooperates with the guide groove 101 to lock. After the end cap 3 is pressed into the connector body 1, the spring piece 302 deforms and contracts, rotating the end cap 3 clockwise along the rotation groove 102 of the connector body 1. When the guide protrusion 301 of the end cap 3 rotates into the designated position in the guide groove 101, the spring piece 302 rebounds, thus locking the end cap 3 and the connector body 1 circumferentially. The design of the rotation groove 102 ensures that the end cap 3 does not fall off along the axial direction. The structural design of the rotation groove 102 and the spring piece 302 ensures the locking of the end cap 3 and the connector body 1, and also achieves sealing and pressure bearing on one side of the filter element 2 inside the connector body 1. The locking structure designed here cannot be manually disassembled; a special tool is required to unlock and replace the filter element 2.

[0052] As a further description of this embodiment, such as Figure 6 As shown, the end cap 3 has a first inverted fir bamboo joint 303 at the connector, which facilitates the insertion with the connecting pipe 8.

[0053] As a further description of this embodiment, such as Figure 8 As shown, the fastening copper ring 5 is provided with a second inverted fir bamboo joint 502. The second inverted fir bamboo joint 502 is pressed in by an interference fit to ensure the product's compressive strength and anti-detachment performance.

[0054] As a further description of this embodiment, such as Figures 7-12As shown, each of the several claws 401 is provided with an outer buckle 4001 and an inner buckle 4002. When the release sleeve 4 is pressed into the fastening copper ring 5, the claws 401 shrink and deform towards the center. After assembly, the claws 401 return to their original shape. The outer buckle 4001 of the claws 401 cooperates with the conical inclined surface 501 on the fastening copper ring 5 to ensure that the release sleeve 4 will not come out of the fastening copper ring 5 due to force and pressure. The inner buckle 4002 is interference-locked with the connecting tube 8, thereby realizing the quick insertion and sealing function of the connecting tube 8.

[0055] As a further description of this embodiment, the filter element 2 has micron-sized pores inside. The filter element 2 is formed by a sintering process. When gas passes through the filter element 2, due to the high density and micron-sized pore structure of the sintered filter element 2, impurities in the gas cannot pass through the filter element 2, thereby achieving the purpose of filtration. At the same time, this structure can also ensure low flow resistance for gas passage.

[0056] The working principle of this utility model is as follows:

[0057] The first sealing ring 6 is interference-fitted with the end cap 3. The filter element 2 is installed into the right side of the end cap 3 in the specified direction. After the end cap 3 is pressed into the left side of the connector body 1, the spring 302 deforms and contracts, rotating the end cap 3 clockwise along the rotating groove 102 of the connector body 1. When the guide protrusion 301 of the end cap 3 rotates into the specified position in the guide groove 101, the spring 302 rebounds, locking the end cap 3 and the connector body 1 circumferentially. The left connecting pipe 8 is connected to the end cap 3 at the connector. The release sleeve 4 is pressed into the fastening copper. When the ring 5 is engaged, the outer undercut 4001 of the claw 401 cooperates with the tapered inclined surface 501 on the fastening copper ring 5, ensuring that the release sleeve 4 will not come off the fastening copper ring 5 due to force or pressure. When this structure is matched and connected with the right-side connecting pipe 8, the connecting pipe 8 is inserted into the support sleeve rod 103 of the connector body 1 to achieve internal support and push the connecting pipe 8 inward to cooperate with the second sealing ring 7. The inner undercut 4002 and the connecting pipe 8 are interference-locked, thereby realizing the quick insertion and sealing function of the connecting pipe 8. If the connecting pipe 8 is pulled improperly, the release sleeve 4 will move with the connecting pipe 8. When it reaches the position of the outer undercut 4001 and the tapered inclined surface 501 of the fastening copper ring 5, the tapered inclined surface 501 can limit the deformation of the claw 401, thereby clamping the connecting pipe 8 more tightly, improving the pull-out resistance of the connecting pipe 8, and ensuring the reliable connection between the connecting pipe 8 and the vent connector. To disassemble the connecting tube 8, press the release sleeve 4 firmly and pull out the connecting tube 8.

[0058] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this invention.

Claims

1. A locking-type filter vent connector for seats, characterized in that, The vent connector includes: The connector body (1) has several guide grooves (101) on the inner wall of the left opening, and several rotating grooves (102) with the same number of guide grooves (101) are provided below the several guide grooves (101). Filter element (2), the filter element (2) is installed inside the left side of the connector body (1); End cap (3), the end cap (3) is installed inside the left side of the connector body (1), the left side of the filter element (2) is connected to the inside of the right side of the end cap (3), the outer wall of the end cap (3) is provided with a number of guide protrusions (301) that are the same number as the guide grooves (101), the guide protrusions (301) are correspondingly connected to the guide grooves (101) on the connector body (1), and the guide protrusions (301) on the end cap (3) are rotatably connected to the connector body (1) through the rotating groove (102); Release sleeve (4), the release sleeve (4) is installed inside the right side of the connector body (1), and a number of circumferentially distributed claws (401) are provided on one side end of the release sleeve (4); A fastening copper ring (5) is fitted on the outer wall of the release sleeve (4) and is interference-fitted to the inner wall of the right side of the connector body (1).

2. The locking-type filter vent connector for a seat according to claim 1, characterized in that, The connector body (1) has a support sleeve (103) inside on the right side.

3. A locking-type filter vent connector for a seat according to claim 1, characterized in that, The end cap (3) is fitted with a first sealing ring (6) on its outer wall with an interference fit.

4. A locking-type filter vent connector for a seat according to claim 1, characterized in that, The connector body (1) has a second sealing ring (7) inside on the right side.

5. A locking-type filter vent connector for a seat according to claim 1, characterized in that, The inner wall of the fastening copper ring (5) located on one side of the claw (401) has a conical inclined surface (501).

6. A locking-type filter vent connector for a seat according to claim 1, characterized in that, The end cap (3) is provided with a spring piece (302), which cooperates with the guide groove (101) to lock.

7. A locking-type filter vent connector for a seat according to claim 1, characterized in that, The end cap (3) has a first inverted fir bamboo joint (303) at the joint.

8. A locking-type filter vent connector for a seat according to claim 1, characterized in that, The fastening copper ring (5) is provided with a second inverted fir bamboo joint (502).

9. A locking-type filter vent connector for a seat according to claim 1, characterized in that, Each of the aforementioned claws (401) is provided with an outer overhang (4001) and an inner overhang (4002).

10. A locking-type filter vent connector for a seat according to claim 1, characterized in that, The filter element (2) has micron-sized pores inside.

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