Corrugated pipe connecting assembly, air window washing device with corrugated pipe connecting assembly and vehicle

Abstract

The utility model discloses a corrugated pipe connecting assembly which comprises a first corrugated pipe, a second corrugated pipe, a connecting sleeve and two clamp springs, and the connecting sleeve is detachably connected with the first corrugated pipe and the second corrugated pipe. The two clamping springs are used for being clamped into wave troughs at the ends of the first corrugated pipe and the second corrugated pipe and connected with the connecting sleeve in a clamped mode when the connecting sleeve is connected with the first corrugated pipe and the second corrugated pipe, and the first corrugated pipe and the second corrugated pipe are fixed to the connecting sleeve. The utility model further discloses an air window washing device with the corrugated pipe connecting assembly and a vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of vehicles, and in particular relates to a bellows connection assembly, a windshield washer device having the same, and a vehicle. Background Technology

[0002] A vehicle windshield washer system is a device that delivers washer fluid from a reservoir through pipes to nozzles to spray and clean the windshield. However, when the pipes are damaged, due to the fixed length of the pipes or their integration into the wiring harness assembly, repairs can only be performed by replacing the entire pipe or the entire wiring harness assembly, resulting in high repair costs and long repair times. Utility Model Content

[0003] In view of this, the first objective of this utility model is to provide a corrugated pipe connection assembly that can solve the problem of high maintenance costs of vehicle windshield washer ducts.

[0004] The second objective of this invention is to provide a windshield washer and a vehicle having the bellows connection assembly.

[0005] To achieve the above-mentioned technical objectives, the first aspect of this utility model provides a corrugated pipe connection assembly, including a first corrugated pipe, a second corrugated pipe, a connecting sleeve, and two retaining rings. The connecting sleeve is detachably connected to the first corrugated pipe and the second corrugated pipe. The two retaining rings are used to respectively engage with the troughs at the ends of the first corrugated pipe and the second corrugated pipe and engage with the connecting sleeve when the connecting sleeve is connected to the first corrugated pipe and the second corrugated pipe, thereby fixing the first corrugated pipe and the second corrugated pipe to the connecting sleeve.

[0006] In one embodiment, the retaining ring has a first engaging portion and a second engaging portion. The first engaging portion is located at the bottom of the retaining ring, and the second engaging portion extends from the wall of the retaining ring toward the inside of the retaining ring. The connecting sleeve is provided with a relief groove. The retaining ring engages with the connecting sleeve through the first engaging portion and engages with the relief groove through the second engaging portion, engaging with the trough of one end of the first corrugated pipe and the second corrugated pipe.

[0007] In one embodiment, the connecting sleeve has a hollow structure, including a connecting body, two receiving portions and two connecting portions. The receiving portions are located between the connecting body and the connecting portions. One end of the first corrugated pipe and the second corrugated pipe is inserted into the receiving portion. The connecting portions are provided with the clearance groove.

[0008] In one embodiment, two guide surfaces are provided on opposite sides of the clearance groove, and the guide surfaces are used to guide the first snap-fit ​​part to slide to a preset position on the connecting part.

[0009] In one embodiment, the guide surface includes a first guide surface and a snap-fit ​​surface located below the first guide surface. The first guide surface is curved, and the snap-fit ​​surface extends inward relative to the first guide surface towards the snap spring. After the first snap-fit ​​portion slides to a preset position, it snaps into the snap-fit ​​surface.

[0010] In one embodiment, the retaining ring includes a retaining ring body having a downward opening, a first engaging portion and a second engaging portion being disposed on opposite sides of the opening, the first engaging portion being located on at least one side of the second engaging portion in the thickness direction of the retaining ring body, and the second engaging portion being located at a position offset from the thickness center of the retaining ring body in the thickness direction of the retaining ring body.

[0011] In one embodiment, the retaining ring further includes a pressing portion, the top outer surface of which is planar.

[0012] In one embodiment, the clearance groove is provided with a partition, and the second snap-fit ​​portion is provided with a notch. The snap-fit ​​spring is pre-fixed to the connecting sleeve by snapping with the partition through the notch.

[0013] The second aspect of this utility model provides a windshield washer device, including a pump, a reservoir, a nozzle, and a corrugated pipe connection assembly as described above. One of the first corrugated pipe and the second corrugated pipe of the corrugated pipe connection assembly is connected to the reservoir, and the other of the first corrugated pipe and the second corrugated pipe of the corrugated pipe connection assembly is connected to the nozzle. The pump is used to pressurize the washer fluid in the reservoir to output pressurized washer fluid.

[0014] A third aspect of this utility model provides a vehicle including a windshield washer as described in the above technical solution.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects:

[0016] This invention uses a detachable connecting sleeve between different corrugated pipes, along with a snap ring that can be inserted into the trough at the end of the corrugated pipe and engage with the connecting sleeve. This allows for the connection of different corrugated pipes, facilitating the free adjustment of the total length of the corrugated pipes. When a corrugated pipe is damaged, simply cut off the damaged section, insert the ends of the different sections into the connecting sleeve, and finally use the snap ring to secure the different sections. Since there is no need to replace the entire corrugated pipe or the entire wiring harness assembly, it also helps reduce pipeline maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A front view of a bellows connection assembly provided for an embodiment of this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the assembly structure of the bellows connection assembly.

[0020] Figure 3 for Figure 1 The diagram shows an exploded view of the bellows connection assembly.

[0021] Figure 4 for Figure 1 A partial structural schematic diagram of the connecting sleeve of the bellows connection assembly shown;

[0022] Figure 5 for Figure 1 A schematic diagram of the retaining ring of the bellows connection assembly shown;

[0023] Figure 6 for Figure 1 The diagram shows a cross-sectional view of the bellows connection assembly in the AA direction;

[0024] Figure 7 for Figure 1 The diagram shows a cross-sectional view of the bellows connection assembly in the BB direction.

[0025] Figure 8 for Figure 1 The diagram shows a cross-sectional view of the bellows connection assembly in the CC direction.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. First corrugated pipe; 2. Second corrugated pipe; 3. Connecting sleeve; 4. Snap ring; 5. Sealing sleeve;

[0028] 11. Peak; 12. Trough;

[0029] 31. Connecting body; 32. Receiving part; 33. Connecting part; 34. Circumvention groove; 35. Guide surface; 36. Partition;

[0030] 351. First guide surface; 352. Second guide surface; 353. Engaging surface;

[0031] 41. Snap ring body; 42. First snap-fit ​​part; 43. Second snap-fit ​​part; 44. Pressing part;

[0032] 431. Gap. Detailed Implementation

[0033] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0035] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, 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.

[0036] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0037] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0038] According to the inventor's understanding, in the research and development of vehicles, the pipes that deliver the windshield washer fluid from the washer reservoir to the nozzles for spraying are typically made of PVC, EPDM, or corrugated pipes. PVC pipes have poor high-temperature resistance, oxidation resistance, and flowability; EPDM pipes have good high-temperature resistance but poor oxidation resistance and flowability; corrugated pipes, with their corrugated shape, have good elasticity and flowability, as well as good high-temperature resistance and oxidation resistance, and are currently widely used by vehicle manufacturers due to their excellent performance. However, when the pipe is damaged, because the pipe length is fixed or the pipe is integrated into the wiring harness assembly, repairs can only be performed by replacing the entire pipe or the entire wiring harness assembly, resulting in high repair costs and long repair times.

[0039] To address the high maintenance costs of vehicle windshield washer ducts and avoid replacing the entire duct or wiring harness, improvements to the connection scheme between ducts are needed.

[0040] Example 1

[0041] Please see Figure 1 , Figure 2 and Figure 6 An embodiment of the first aspect of this utility model provides a corrugated pipe connection assembly, which includes a first corrugated pipe 1, a second corrugated pipe 2, a connecting sleeve 3, and two retaining springs 4. The connecting sleeve 3 is detachably connected to the first corrugated pipe 1 and the second corrugated pipe 2. The two retaining springs 4 are used to engage with the troughs 12 at the ends of the first corrugated pipe 1 and the second corrugated pipe 2 respectively, and to engage with the connecting sleeve 3, thus fixing the first corrugated pipe 1 and the second corrugated pipe 2 to the connecting sleeve 3. It should be noted that the first corrugated pipe 1 and the second corrugated pipe 2 mentioned here can refer to two identical corrugated pipes, or to different parts after the entire corrugated pipe has been cut. Their outer surfaces are both wrinkled or uneven, and both have crests 11 and troughs 12. The detachable connection specifically refers to a detachable insertion connection. Thus, when it is necessary to lay long-span pipes or repair a single damaged pipe to connect the washing jug and the nozzle, since the connecting sleeve 3 is detachably connected to the first corrugated pipe 1 and the second corrugated pipe 2, the total length of the pipe and the maintenance and repair of the damaged pipe can be freely adjusted by setting multiple connecting sleeves 3 and multiple retaining springs 4 between multiple first corrugated pipes 1 and multiple second corrugated pipes 2, or by cutting the damaged single corrugated pipe at the damaged part and then setting connecting sleeves 3 and two retaining springs 4 between the two parts of the corrugated pipe. Compared with the existing connection schemes that use two-way or three-way connectors, or use mutually matching male and female connectors and adopt a rapid cold impact assembly process, the connection scheme disclosed in this utility model is convenient to assemble, has a short maintenance time, and does not require the use of auxiliary tooling.

[0042] like Figure 4 , Figure 5 As shown, the retaining ring 4 includes a retaining ring body 41, on which a first engaging portion 42 and a second engaging portion 43 are formed. Correspondingly, the connecting sleeve 3 is provided with a relief groove 34. The retaining ring 4 engages with the connecting sleeve 3 through the first engaging portion 42 and engages with the relief groove 34 through the second engaging portion 43, engaging with the trough 12 at one end of the first corrugated pipe 1 and the second corrugated pipe 2.

[0043] Specifically, the snap ring body 41 has an inverted U-shaped or U-shaped structure, forming an opening facing downwards. The snap ring bodies 41 on both sides of the opening can elastically deform outwards when subjected to outward support. The first snap-fit ​​portion 42 is located at the bottom of the opening and is a protrusion extending from the snap ring body 41 into the opening. The second snap-fit ​​portion 43 is located on the inner side of the snap ring body 41 and is a solid flange extending inwards from the wall of the snap ring body 41, including an arc-shaped portion located radially in the middle of the snap ring 4. The first snap-fit ​​portion 42 is located on at least one side of the second snap-fit ​​portion 43 in the thickness direction of the snap ring body 41, and the second snap-fit ​​portion 43 is located off-center from the thickness center of the snap ring body 41 in the thickness direction of the snap ring body 41. This arrangement ensures that the snap ring 4 can deform outwards under the support force and snap into the connecting sleeve 3, and that the snap ring 4 can only be inserted into the connecting sleeve 3 in a predetermined direction, preventing misinstallation.

[0044] like Figure 3 , Figure 4 and Figure 6As shown, the connecting sleeve 3 in this embodiment has a hollow, cylindrical structure, comprising a connecting body 31, two receiving portions 32, and two connecting portions 33. The receiving portions 32 accommodate one end of the first corrugated pipe 1 or the second corrugated pipe 2, and a clearance groove 34 is located on the connecting portion 33. Specifically, the two receiving portions 32 and the two connecting portions 33 are located at both ends of the connecting body 31, with the receiving portions 32 positioned between the corresponding connecting body 31 and connecting portion 33. Preferably, the connecting body 31, receiving portions 32, and connecting portions 33 are coaxially arranged so that the originally coaxial first corrugated pipe 1 and second corrugated pipe 2 can be inserted into the connecting sleeve 3. It should be noted that, to ensure the connection stability between the connecting sleeve 3 and the first corrugated pipe 1 and the second corrugated pipe 2, the inner diameters of the connecting body 31, receiving portions 32, and connecting portions 33 gradually increase, and the inner diameter of the connecting body 31 is adapted to the inner diameters of the first corrugated pipe 1 and the second corrugated pipe 2. Thus, when the first corrugated pipe 1 and the second corrugated pipe 2 are respectively inserted into the two receiving portions 32 from the two connecting portions 33 at both ends of the connecting sleeve 3, due to the radial difference between the connecting body 31 and the receiving portion 32, the end edges of the first corrugated pipe 1 and the second corrugated pipe 2 inserted into the two receiving portions 32 respectively abut against the inner end face of the connecting body 31, which is beneficial to limit the movement of the first corrugated pipe 1 and the second corrugated pipe 2 in the axial direction of the connecting body 31, that is, limit the movement of the first corrugated pipe 1 to the right and limit the movement of the second corrugated pipe 2 to the left.

[0045] like Figure 3 and Figure 4 As shown, the clearance groove 34 is located on the outer circumferential surface of the connecting part 33, is arc-shaped, and penetrates the corresponding side wall of the connecting part 33 radially. Preferably, the width of the clearance groove 34 in the axial direction of the connecting part 33 is greater than the thickness of the corresponding mating part on the retaining spring 4, which facilitates the adjustment of the position of the retaining spring 4 in the axial direction of the connecting part 33 and ensures that the retaining spring 4 engages with the trough 12 of the bellows.

[0046] like Figure 4 , Figure 7 and Figure 8As shown, to ensure that the elastic deformation of the retaining ring 4 is within a suitable range and can be engaged in the trough 12 of the bellows, two guide surfaces 35 are provided on opposite sides of the relief groove 34 to guide the first engaging portion 42 of the retaining ring 4 to slide to a preset position on the connecting portion 33. Specifically, the two guide surfaces 35 are located on the left and right sides of the relief groove 34, respectively, and are arched or arc-shaped. Each guide surface 35 includes a first guide surface 351, a second guide surface 352, and an engaging surface 353. The second guide surface 352 is located between the first guide surface 351 and the engaging surface 353, and the engaging surface 353 is located below the first guide surface 351 and the second guide surface 352, and extends inward toward the retaining ring 4 relative to the first guide surface 351. Specifically, the first guide surface 351 is curved, the second guide surface 352 is flat, and the top of the engaging surface 353 is flat. Thus, when the first engaging part 42 of the snap ring 4 slides along the length direction of the first guide surface 351 and the second guide surface 352 in sequence, the snap ring body 41 can undergo elastic deformation, first expanding outward and then contracting inward, finally causing the first engaging part 42 to engage at the engaging surface 353.

[0047] Furthermore, during the installation of the retaining ring 4, in order to facilitate the operator to apply pressure to snap the retaining ring 4 into the preset position, the retaining ring 4 also includes a pressing part 44, which is located on the top of the retaining ring body 41. Preferably, the top outer surface of the pressing part 44 is flat, which is beneficial to increasing the contact area between the operator's hand and the pressing part 44.

[0048] like Figure 4 , Figure 5 and Figure 7 As shown, the connecting sleeve 3 has a partition 36 formed in the relief groove 34. A snap-fit ​​groove is formed at the bottom of the partition 36. The bottom of the second snap-fit ​​part 43 is provided with a notch 431 corresponding to the partition 36, so that the snap ring 4 can be pre-connected to the partition 36 of the connecting sleeve 3 through the notch 431, avoiding the situation where the missing snap ring 4 prolongs the maintenance time. Specifically, the partition 36 is located at the top of the connecting part 33, and the left and right width of the top of the partition 36 is greater than the width of the second snap-fit ​​part 43 below the notch 431, so that the snap ring 4 can be pre-fixed to the connecting sleeve 3 through snap-fit.

[0049] like Figure 3 , Figure 6 and Figure 8As shown, to ensure sealing, the bellows connection assembly also includes two sealing sleeves 5 inserted into the connecting sleeve 3. Specifically, the two sealing sleeves 5 are located in the two receiving portions 32 respectively, and the outer surface of the sealing sleeve 5 is in contact with the inner surface of the receiving portion 32. Preferably, the inner diameter of the sealing sleeve 5 is smaller than the outer diameter at the crest 11 of the bellows. Thus, when the ends of the first bellows 1 and the second bellows 2 are respectively inserted into the corresponding receiving portions 32 from the two connecting portions 33, the sealing sleeves 5 are positioned between the bellows and the connecting sleeve 3 in an interference fit under the combined action of the inner surface of the receiving portion 32 and the outer surface of the bellows, which helps to ensure the sealing between the first bellows 1 and the second bellows 2 after connection.

[0050] Example 2

[0051] A second aspect of this utility model provides a windshield washer device, which includes a pump, a reservoir, a nozzle, and a corrugated pipe connection assembly as described in the first embodiment above. One of the first corrugated pipe 1 and the second corrugated pipe 2 of the corrugated pipe connection assembly is connected to the reservoir, and the other of the first corrugated pipe 1 and the second corrugated pipe 2 is connected to the nozzle. The pump is used to pressurize the washer fluid in the reservoir to output pressurized washer fluid, thus making the windshield washer device easy to maintain.

[0052] Example 3

[0053] According to a third aspect of this utility model, a vehicle includes a windshield washer as described in Embodiment 2 above, which makes the vehicle have the characteristic of low maintenance cost.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] This invention uses a detachable connecting sleeve 3 between different corrugated pipes, along with a retaining spring 4 that can be inserted into the corrugated pipe end trough 12 and engage with the connecting sleeve 3. This allows for the connection of different corrugated pipes, facilitating the free adjustment of the total length of the corrugated pipes. When a corrugated pipe is damaged, simply cut off the damaged section, insert the ends of the different sections into the connecting sleeve 3, and finally use the retaining spring 4 to secure the different sections. Since there is no need to replace the entire corrugated pipe or the entire wiring harness assembly, this invention also helps reduce pipeline maintenance costs.

[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A bellows connection assembly, characterized by The utility model provides a first bellow (1), a second bellow (2), a connecting sleeve (3) and two clamping springs (4), the connecting sleeve (3) is detachably connected with the first bellow (1) and the second bellow (2), two the clamping spring (4) is used for respectively clamping into the valley (12) of the end of the first bellow (1) and the second bellow (2) when the connecting sleeve (3) is connected with the first bellow (1) and the second bellow (2) with the connecting sleeve (3) clamping, the first bellow (1) and the second bellow (2) with the connecting sleeve (3) are fixed.

2. The bellows connection assembly of claim 1, wherein, The clamping spring (4) has a first clamping part (42) and a second clamping part (43), the first clamping part (42) is located at the bottom of the clamping spring (4), the second clamping part (43) extends from the wall of the clamping spring (4) to the inside of the clamping spring (4), the connecting sleeve (3) is provided with a avoiding slot (34), the clamping spring (4) is clamped with the connecting sleeve (3) through the first clamping part (42), and is clamped into the avoiding slot (34) through the second clamping part (43) and clamped with the valley (12) of one end of the first bellow (1) and the second bellow (2).

3. The bellows coupling assembly of claim 2, wherein, The connecting sleeve (3) is a hollow structure, including a connecting body (31), two receiving parts (32) and two connecting parts (33), the receiving part (32) is located between the connecting body (31) and the connecting part (33), one end of the first bellow (1) and the second bellow (2) is inserted into the receiving part (32), and the connecting part (33) is provided with the avoiding slot (34).

4. The bellows coupling assembly of claim 3, wherein, The opposite sides of the avoiding slot (34) are provided with two guide surfaces (35), and the guide surfaces (35) are used for guiding the first clamping part (42) to slide to a predetermined position on the connecting part (33).

5. The bellows coupling assembly of claim 4, wherein, The guide surface (35) includes a first guide surface (351) and a clamping surface (353) located below the first guide surface (351), the first guide surface (351) is a curved surface, the clamping surface (353) extends to the inside of the clamping spring (4) relative to the first guide surface (351), and the first clamping part (42) is clamped with the clamping surface (353) after sliding to the predetermined position.

6. The bellows connection assembly of claim 2, wherein, The clamping spring (4) includes a clamping spring body (41), the clamping spring body (41) has a downward opening, the first clamping part (42) and the second clamping part (43) are located on the opposite sides of the opening, the first clamping part (42) is located on at least one side of the second clamping part (43) in the thickness direction of the clamping spring body (41), and the second clamping part (43) is located at a position deviating from the thickness center of the clamping spring body (41) in the thickness direction of the clamping spring body (41).

7. The bellows connection assembly of claim 6, wherein, The clamping spring (4) further includes a pressing part (44), and the top outer surface of the pressing part (44) is a plane.

8. The bellows connection assembly of claim 2, wherein, The avoiding groove (34) is provided with a partition (36), the second clamping part (43) is provided with a gap (431), the clamping spring (4) is pre-fixed to the connecting sleeve (3) through the clamping of the gap (431) and the partition (36).

9. A windscreen washing device, characterized in that A pump, a liquid storage pot, a nozzle and the corrugated pipe connecting assembly as claimed in any one of claims 1 to 8, one of the first corrugated pipe (1) and the second corrugated pipe (2) of the corrugated pipe connecting assembly is in communication with the liquid storage pot, the other of the first corrugated pipe (1) and the second corrugated pipe (2) of the corrugated pipe connecting assembly is in communication with the nozzle, and the pump is used to pressurize the washing liquid in the liquid storage pot to output pressurized washing liquid.

10. A vehicle characterized by comprising: The wind window washing device as claimed in claim 9.

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