Tube retaining clip
By designing a pipe retaining clamp with a support section having an offset center axis, the problem of pipe loosening caused by vehicle vibration was solved, achieving stable fixation and leak prevention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ILLINOIS TOOL WORKS INC
- Filing Date
- 2020-11-04
- Publication Date
- 2026-05-08
AI Technical Summary
During vehicle operation, the pipe joints may loosen due to vibration, and the existing pipe clamps may not be able to effectively and stably secure the pipes, leading to a risk of leakage.
Design a pipe retaining clamp including a base, sides, retaining arms and a support. The support consists of first and second support sections with arc-shaped working surfaces and offset central axes. It is integrally formed by injection molding to provide strong retaining force and elasticity, and to restrict axial movement of the pipe.
It achieves stable fixation of pipes in vehicles, preventing loosening and leakage, with strong holding force and low insertion force, making it easy to install.
Smart Images

Figure CN114440006B_ABST
Abstract
Description
Technical Field
[0001] This application relates to a tube retaining clamp, and more particularly to a tube retaining clamp capable of stably holding a tube therein. Background Technology
[0002] Vehicles contain pipes used to transport liquids or gases. These pipes connect to corresponding components and typically have one or more joints. During vehicle operation, vibrations can cause these pipes to shift relative to the vehicle body, potentially loosening the pipe joints. To prevent this, pipe retaining clamps are typically used to hold the pipes in place and prevent movement. The pipe retaining clamps are attached to the vehicle body, securing the pipes within them and thus holding them stably within the vehicle. Summary of the Invention
[0003] This application provides a pipe retaining clamp for holding pipes in a vehicle. The pipe retaining clamp has a width direction, a height direction, and a length direction, and includes: a base; a pair of opposing side portions extending upward from the base; a pair of retaining arms extending inward from the pair of side portions and toward the base; and a support portion connected to the base or the pair of side portions on both sides, with a certain distance between the support portion, the base, and the pair of side portions, and the support portion having a working surface that is recessed toward the base; wherein the support portion is located below the pair of retaining arms, and a clamping space is formed between the pair of retaining arms and the working surface.
[0004] As described above, the support portion of the tube retainer includes a first support section and a second support section, which are arranged along the width direction of the tube retainer. The first support section includes a first arc-shaped working surface, and the second support section includes a second arc-shaped working surface. The central axis of the first working surface and the central axis of the second working surface are offset from each other in the length direction of the tube retainer.
[0005] As described above, in the tube retaining clamp, the first working surface has a first left working surface and a first right working surface, and the second working surface has a second left working surface and a second right working surface. The first left working surface and the second right working surface are respectively located on both sides of the central axis of the first working surface and the central axis of the second working surface, and the second left working surface and the first right working surface are respectively located on both sides of the central axis of the first working surface and the central axis of the second working surface. The clamping space is configured to accommodate the clamped tube. When the first support section and the second support section are in a free state, on the projection plane of the tube retaining clamp in the width direction, the maximum distance between the first left working surface and the second right working surface in the length direction of the tube retaining clamp is less than the diameter of the clamped tube.
[0006] As described above, in the tube retaining clamp, the two sides of the first support section are connected to the base or the pair of sides, and the two sides of the second support section are connected to the base or the pair of sides.
[0007] The tube retaining clamp as described above further includes: a pair of first connecting portions and a pair of second connecting portions, wherein the first support segment is connected to the base or the pair of sidewalls via the pair of first connecting portions, and the second support segment is connected to the base or the pair of sidewalls via the pair of second connecting portions.
[0008] As described above, in the tube retaining clamp, the first support segment includes a left end and a right end, and at least one of the pair of first connecting portions is connected to the first support segment at a position lower than the corresponding one of the left and right ends of the first support segment, thereby forming at least one of the left and right ends of the first support segment as a free end of the first support segment; the second support segment includes a left end and a right end, and at least one of the pair of second connecting portions is connected to the second support segment at a position lower than the corresponding one of the left and right ends of the second support segment, thereby forming at least one of the left and right ends of the second support segment as a free end of the second support segment.
[0009] As described above, in the tube retaining clamp, the first support segment has a first support segment free end, and the second support segment has a second support segment free end, with the first support segment free end and the second support segment free end disposed on both sides of the central axis of the first working surface.
[0010] The tube retaining clamp as described above further includes: a reinforcing part located below and connected to the supporting part, a hollow space between the reinforcing part and the supporting part, and a certain distance between the reinforcing part and the base.
[0011] As described above, in the tube retaining clamp, there is a certain interval between the first support segment and the second support segment in the extension direction of the central axis of the first working surface and the central axis of the second working surface.
[0012] The tube retainer as described above is integrally molded by injection molding.
[0013] The tube retainer of this application has a strong retaining force, which can effectively limit the sliding of the tube relative to the tube retainer along the axial direction of the tube. Furthermore, the tube retainer of this application has a small insertion force, making it easy to insert the tube into the tube retainer. Attached Figure Description
[0014] Figure 1A This is a perspective view of one embodiment of the tube retaining clip in this application;
[0015] Figure 1B yes Figure 1A Side view of the center tube retaining clamp;
[0016] Figure 2 yes Figure 1A A cross-sectional view of the tube retainer 100 cut along line AA;
[0017] Figure 3 This is a cross-sectional view of another embodiment of the tube retaining clamp in this application;
[0018] Figure 4A yes Figure 1A A perspective view of the tube retainer 100 cut along line BB;
[0019] Figure 4B yes Figure 4A Bottom view of the central tube retaining clamp 100;
[0020] Figure 5A yes Figure 1A A three-dimensional view of the tube retaining clamp 100 and the tube;
[0021] Figure 5B The pipe is installed Figure 1A A three-dimensional view of the tube retaining clamp 100 in the middle;
[0022] Figure 6A It is a pipe relative to Figure 1A Side view of the tube retainer clamp in the first position;
[0023] Figure 6B It is a pipe relative to Figure 1A Side view of the tube retainer clamp in the second position;
[0024] Figure 6C It is a pipe relative to Figure 1A Side view of the tube retainer clamp in the third position;
[0025] Figure 6D Is it under control? Figure 1A Side view of the tube retainer in place;
[0026] Figure 7 yes Figure 6D A three-dimensional view of the middle tube and the tube retainer clamp cut along the CC line. Detailed Implementation
[0027] Various specific embodiments of the invention will now be described with reference to the accompanying drawings, which form part of this specification. It should be understood that although directional terms such as "front," "rear," "upper," "lower," "left," and "right" are used herein to describe various exemplary structural parts and elements, their use is merely for ease of description and is based on the exemplary orientations shown in the drawings. Since the embodiments disclosed herein can be arranged in different orientations, these directional terms are illustrative and should not be considered limiting. Where possible, the same or similar reference numerals used herein refer to the same parts.
[0028] Figure 1A This is a perspective view of one embodiment of the tube retaining clamp. Figure 1B yes Figure 1A Side view of the center tube retaining clamp. Figure 1A and Figure 1B The appearance of the tube retaining clamp is shown. (See image.) Figure 1A and Figure 1B As shown, the tube retaining clamp 100 includes a base 103, a pair of side portions 104 and 105, a pair of retaining arms 108 and 109, and a retaining portion 170. Figure 1AAs shown, the tube retainer 100 has a length direction L, a width direction W, and a height direction H. The base 103 is generally flat and has an upper surface 150. A pair of side portions 104 and 105 extend upward from the upper surface of the base 103. The pair of side portions 104 and 105 are located close to both sides of the base 103 in the length direction. The pair of side portions 104 and 105 have distal ends 116 and 117 respectively, away from the base 103. A pair of retaining arms 108 and 109 extend downward from the distal ends 116 and 117 of the base 103 and toward each other. A pair of retaining arms 108 and 109 have a certain degree of elasticity. The proximal ends 118 and 119 of the pair of retaining arms 108 and 109 are connected to the distal ends 116 and 117 of the base 103, respectively. The distal ends 128 and 129 of the pair of retaining arms 108 and 109 are spaced apart from the pair of side portions 104 and 105, thereby facilitating the deformation of the distal ends 128 and 129 of the pair of retaining arms 108 and 109 towards the opposite side portions 104 and 105. The outer sides of the pair of side portions 104 and 105 are respectively provided with reinforcing ribs 132. The reinforcing ribs 132 are connected to the outer surfaces of the pair of side portions 104 and 105 and the upper surface of the base 103 to support the pair of side portions 104 and 105 and prevent the pair of side portions 104 and 105 from deforming excessively in a direction away from each other.
[0029] A retaining portion 170 is disposed within the space surrounded by a base 103, a pair of side portions 104 and 105, and a pair of retaining arms 108 and 109. The retaining portion 170 includes a support portion 180 and a connecting structure 195, the support portion 180 being connected to the pair of side portions 104 and 105 via the connecting structure 195. The support portion 180 has a support surface 190, which, together with the pair of retaining arms 108 and 109, forms a clamping space 192. The clamping space 192 is configured to accommodate a clamped tube. A reinforcing portion 185 is provided below the support portion 180, and a hollow space exists between the reinforcing portion 185 and the support portion 180. The retaining portion 170 includes a first retaining section 171 and a second retaining section 172 arranged in the width direction of the tube retainer 100. A certain distance is provided between the first retaining section 171 and the second retaining section 172 to form two relatively independent sections. The first section 171 and the second section 172 of the retaining part have similar structures. The structure of the retaining part will be introduced below using the first section 171 as an example.
[0030] The tube retainer in this application is integrally molded from thermoplastic material using an injection molding process. The material of the tube retainer in this application gives it both strength and elasticity.
[0031] Figure 2 yes Figure 1A A cross-sectional view of the tube retainer 100 taken along line AA, used to show the structure of the first segment 171 of the retainer. Combined with... Figure 1A As shown in Figures 1B and 2, the first segment 171 of the retaining portion has a first support segment 201, a pair of connecting portions 205 and 206, and a reinforcing portion 230. The first support segment 201 is generally arc-shaped and has a working surface 281 facing the pair of retaining arms 108 and 109 and a lower surface 282 facing the base 103. The cross-section of the working surface 281 is generally semi-circular. The working surface 281 is configured to contact the clamped tube. The end surfaces of the distal ends 128 and 129 of the pair of retaining arms 108 and 109 are arc-shaped, and the end surfaces of the distal ends 128 and 129 are on the same circumference as the working surface 281. The support portion 180 has a first support segment left end 218 near the side portion 104 and a first support segment right end 219 near the side portion 105 in the length direction of the tube retaining clamp 100, and the tops of the first support segment left end 218 and the tops of the first support segment right end 219 are flush with the height direction of the tube retaining clamp 100. A pair of connecting portions 205 and 206 connect the two sides of the support portion 180 to a pair of side portions 104 and 105, respectively. The connection point of the connecting portion 206 with the first support segment 201 is flush with the height of the right end 219 of the first support segment. The connection point of the connecting portion 205 with the first support segment 201 is lower than the top of the left end 218 of the first support segment, so that the portion of the left end 218 of the first support segment that is higher than the first support segment 201 forms a free end 220. The free end 220 is more prone to deformation than the right end 219 of the first support segment, and when subjected to external pressure, the free end 220 is more likely to deflect toward the side portion 104. The connecting portions 205 and 206 extend approximately in a direction parallel to the base 103 and are both spaced apart from the base 103. A reinforcing portion 230 is provided below the first support segment 201. One end of the reinforcing portion 230 is connected to the connecting portion 205, and the other end is connected to the first support segment 201 near the right end 219 of the first support segment via a beam 235. There is a gap between the reinforcing part 230 and the first support section 201, thus forming a space 232, which facilitates the downward deformation of the first support section 201. There is a hollow space 233 between the reinforcing part 230 and the base 103, which facilitates the downward deformation of the reinforcing part 230.
[0032] The second section 172 of the retaining part is similar in structure to the first section 171 of the retaining part, except that the second section 172 of the retaining part and the first section 171 of the retaining part are arranged in opposite directions along the length of the tube retaining clamp 100.
[0033] Figure 3 This is a cross-sectional view of another embodiment of the tube retainer clamp, and... Figure 2The illustrated embodiment is similar, except that connecting portions 305 and 306 are connected to the first support segment 201 and the base 103, respectively. The connections of connecting portions 305 and 306 to the first support segment 201 are located near the left end 318 and right end 319 of the first support segment, respectively, and are simultaneously lower than the tops of the left and right ends 318 and 319, thus forming free ends 320 and 321 in the height direction of the left and right ends 318 and 319. Free ends 320 and 321 have gaps between them and the sides 104 and 105, respectively, facilitating deformation towards the pair of sides 104 and 105. In this embodiment, by adjusting the height difference between the connection points of connecting portions 305 and 306 with the first support segment 201 and the tops of the left end 318 and right end 319 of the first support segment, the ease with which the left end 318 and right end 319 of the first support segment deforms can be adjusted. In other words, adjusting the height of the free ends 320 and 321 adjusts the ease with which the left end 318 and right end 319 of the first support segment deforms. Connecting portions 305 and 306 extend from the lower surface 282 of the first support segment 201 toward the base 103 and toward directions away from each other until they connect with the base 103. The reinforcing portion 330 is located below the first support segment 201 and has a certain distance between it and the lower surface 282 of the first support segment 201, thereby forming a space 333. The two ends of the reinforcing portion 330 are connected to connecting portions 305 and 306, respectively. There is a certain distance between the reinforcing part 330 and the base 103, thus forming a space 332. Spaces 332 and 333 provide deformation space for the first support section 201 and the reinforcing part 330, respectively, so that when the first support section 201 and the reinforcing part 330 are subjected to a downward force, they can deform downwards more easily. The connecting parts 305 and 306 form an acute angle with the base 103, rather than being perpendicular to the base 103. This arrangement facilitates the downward deformation of the first support section 201.
[0034] Figure 4A yes Figure 1A A perspective view of the tube retainer 100 cut along line BB. Figure 4B yes Figure 4A Bottom view of the center tube retaining clamp 100. (See image below.) Figure 4A and Figure 4BAs shown, the tube retainer 100 has a center surface 465, which extends along the width and height directions of the tube retainer 100 and passes through the midpoint of the tube retainer 100 in the length direction. The second retaining section 172 has a similar structure to the first retaining section 171, except that the orientation of the second retaining section 172 is different from that of the first retaining section 171. The second retaining section 172 has a second support section 401, a pair of connecting parts 405 and 406, and a reinforcing part 430. The second support section 401 is connected to a pair of side parts 104 and 105 via the pair of connecting parts 405 and 406. The reinforcing part 430 is disposed below the second support section 401. The second support section 401 has a working surface 481, a left end 418, and a right end 419. Along the length of the tube retaining clamp 100, the pair of connecting portions 205 and 206 of the second retaining section 172 are arranged in the opposite direction to the pair of connecting portions 405 and 406 of the first retaining section 171. Specifically, connecting portion 405 of the second retaining section 172 is connected to side portion 105, connecting portion 406 is connected to side portion 104, and the free end 420 of the second support section 401 of the second retaining section 172 is close to side portion 105. Thus, the free ends 220 of the first support section 201 of the first retaining section 171 and 420 of the second support section 401 of the second retaining section 172 are located on opposite sides of the center plane 465 along the length of the tube retaining clamp. A certain distance exists between the first retaining section 171 and the second retaining section 172 so that they do not interfere with each other when deformed.
[0035] Or as Figure 4A and Figure 4BAs shown, the working surface 281 of the first support section 201 of the first section 171 of the retaining part is approximately semi-circular and has a central axis 461, and the working surface 481 of the second support section 401 of the second section 172 of the retaining part is approximately semi-circular and has a central axis 462. Along the length of the tube retaining clamp 100, the central axis 461 and the central axis 462 of the working surface 281 are offset, located on opposite sides of the central surface 465, and are symmetrical with respect to the central surface 465. The central axis 461 of the working surface 281 is closer to the side portion 105 than the central axis 462 of the working surface 481. That is, the central axis 461 is located to the right of the central surface 465, and the central axis 462 is located to the left of the central surface 465. Specifically, the central axis 461 is located on the side of the central surface 465 closer to the side portion 105, and the central axis 462 is located on the side of the central surface 465 closer to the side portion 104. The distance between the central axis 461 of the working surface 281 and the central axis 462 of the working surface 481 along the length of the tube retainer 100 is within a suitable range, for example, less than half the diameter of the working surface 481. Along the length of the tube retainer 100, the left end 218 of the first support section is closer to the center plane 465 than the left end 418 of the second support section, and the right end 219 of the first support section is closer to the center plane 465 than the right end 419 of the second support section.
[0036] like Figure 4B As shown, working surface 281 has a first left working surface 283 and a first right working surface 284, which are located on both sides of the central axis 461. Working surface 481 has a second left working surface 483 and a second right working surface 484, which are located on both sides of the central axis 462. The first left working surface 283 of working surface 281 is closer to the central surface 465 than the first right working surface 284, and the second right working surface 484 of working surface 482 is closer to the central surface 465 than the second left working surface 483. When the first support segment 201 and the second support segment 401 are in a free state, on the projection plane of the tube retaining clamp 100 in the width direction, the maximum distance between the first left working surface 283 and the second right working surface 484 in the length direction of the tube retaining clamp is less than the diameter of the clamped tube. In other words, the maximum distance from the first left working surface 283 and the second right working surface 484 to the center surface 465 is less than the radius of the clamped tube. In this embodiment, both working surfaces 281 and 481 are semicircles symmetrical with respect to the center surface 465. The distance from the top of the first left working surface 283 and the top of the second right working surface 484 to the center surface 465 is the greatest, that is, the distance between the top of the first left working surface 283 and the top of the second right working surface 484 in the length direction of the tube holding clamp 100 is less than the diameter of the clamped tube.
[0037] When the tube enters the support section 180, it first contacts the top of the left end 218 and the top of the right end 219 of the first support section. Then, an external force is applied to the tube, causing the left end 218 and the right end 219 of the first support section to deform first. Since the left end 218 and the right end 219 of the first support section are designed to have free ends, they can deform relatively easily. When the tube is inserted into the tube retainer 100, because the central axes of the working surfaces 281 and 481 are not on the same straight line, the elastic forces generated by the deformation of the first support section 201 and the second support section 401 are in opposite directions, which allows the tube to be stably held in the tube retainer 100.
[0038] In another embodiment of this application, it may also include only one retaining part, for example, the tube retaining clamp 100 is cut along the SS line, and only the first segment 171 of the retaining part is retained. This design should also be within the protection scope of this invention.
[0039] Figure 5A yes Figure 1A A three-dimensional view of the tube retaining clamp 100 and the tube. Figure 5B The pipe is installed Figure 1A The perspective view of the pipe retaining clamp 100 shows the relationship between the pipe retaining clamp and the pipe to be installed. (See diagram below.) Figure 5A and Figure 5B As shown, when inserting the tube 501 into the tube retaining clamp 100, first, the placement direction of the tube 501 is set so that the axial direction of the tube 501 is consistent with the width direction of the tube retaining clamp 100. Then, the tube 501 is placed above the tube retaining clamp 100 and towards the space between the pair of retaining arms 108 and 109. The tube 501 is then pressed downwards, causing it to push outwards against the pair of retaining arms 108 and 109, thus reaching the working surfaces 281 of the first support section 201 and 481 of the second support section 401. The retaining arms 108 and 109 then return to their original shape, thus holding the tube 501 between the retaining arms 108 and 109 and the first and second support sections 201 and 401, preventing it from sliding within the tube retaining clamp 100. The following will combine... Figures 6A-6C Explain this process.
[0040] Figure 6A It is a pipe relative to Figure 1A Side view of the tube retainer clamp in the first position. Figure 6B It is a pipe relative to Figure 1A Side view of the tube retainer clamp in the second position. Figure 6C It is a pipe relative to Figure 1A Side view of the tube retainer clamp in the third position. Figure 6D Is it under control? Figure 1A Side view of the tube retainer clamp in place. Figure 6A Figures 6B, 6C, and 6D illustrate the installation process of pipe 501.
[0041] like Figure 6A As shown, when preparing to install tube 501, tube 501 is placed above a pair of retaining arms 108 and 109 and aligned with clamping space 192. At this time, tube 501 is in the first position relative to tube retaining clamp 100.
[0042] like Figure 6B As shown, as the tube 501 continues to move toward the first support section 201, the outer side of the tube 501 comes into contact with a pair of retaining arms 108 and 109. Since the distance between the distal ends 128 and 129 of the pair of retaining arms 108 and 109 is less than the diameter of the tube 501, the pair of retaining arms 108 and 109 will prevent the tube 501 from moving further toward the first support section 201. At this time, the tube 501 is in the second position relative to the tube retaining clamp 100.
[0043] like Figure 6C As shown, when an external force is applied to the tube 501, causing it to continue moving toward the clamping space 192, a pair of retaining arms 108 and 109 are deformed by the compression of the tube toward a pair of side portions 104 and 105. This increases the distance between the distal ends 128 and 129 of the retaining arms 108 and 109, allowing the tube 501 to pass through the retaining arms 108 and 109 and contact the free end 220 of the first support section 201 and the free end 420 of the second support section 401. At this time, the tube 501 is in the third position relative to the tube retaining clamp 100. Because the central axes of the first support section 201 and the second support section 401 are offset, at this position, the pipe is blocked by the free end 220 of the first support section 201 and the free end 420 of the second support section 401, thus creating a certain distance between the pipe and the bottom of the working surface 281 and the working surface 481, and also creating a certain distance between the pipe and the right end 219 of the first support section of the first support section 201 and the right end 419 of the second support section of the second support section 401.
[0044] like Figure 6DAs shown, when an external force is continuously applied to the tube 501, the tube 501 deforms towards the sides 104 and 105, compressing the free ends 220 and 420, thus allowing the tube 501 to enter the space enclosed by the working surfaces 281 and 481. The working surfaces 281 and 481 are subjected to pressure, causing the first support section 201 and the second support section 401 of the tube to deform and move downwards a certain distance. At this point, the tube 501 separates from the pair of retaining arms 108 and 109, allowing the retaining arms 108 and 109 to recover their deformation and reach their free state position. Then, the external force applied to the tube 501 is removed, and the downward deformation of the first support section 201 and the second support section 401 is restored or partially restored. The tube 501 then contacts the distal ends 128 and 129 of the pair of retaining arms 108 and 109. A pair of retaining arms 108 and 109 restrain the tube 501 within the tube retaining clamp 100, thereby preventing the tube 501 from moving radially relative to the tube retaining clamp 100. The free end 220 of the first support section 201 applies a spring force toward the side 105 to the tube 501, and the free end 420 of the second support section 401 applies a spring force toward the side 104 to the tube 501, thus clamping the first support section 201 and the second support section 401 together, preventing movement along the axial direction of the tube 501. At this point, the tube 501 is installed in place within the tube retaining clamp.
[0045] Figure 7 yes Figure 6D A three-dimensional view of the tube and tube retainer cut along line CC to show the positional relationship between the tube and the tube retainer. (e.g.) Figure 7 As shown, pipe 501 is located in the first support section 201 and the second support section 401, combined with Figure 4B As shown, the central axis of the first support segment 201 is close to the side portion 105, and the central axis of the second support segment 401 is close to the side portion 104. The tube 501 is a rigid body relative to the tube retaining clamp 100. When the tube 501 is inserted into the tube retaining clamp 100, it compresses the first support segment 201 and the second support segment 401. The free end 220 of the first support segment 201 deforms towards the side portion 104, thereby applying a spring force towards the side portion 105 to the tube as indicated by arrow 701. The free end 420 of the second support segment 401 deforms towards the side portion 105, thereby applying a spring force towards the side portion 104 to the tube as indicated by arrow 702. In other words, the tube 501 experiences directional spring forces in the opposite direction to those at the two corresponding positions of the support portion 180 in the axial direction, thus clamping the tube 501 by the support portion 180. Compared to having only one support portion, the spring force provided by two support portions makes the tube 501 more stable in the tube retaining clamp 100.
[0046] There is a gap between the first support segment 201 and the second support segment 401, and there is also a gap between the pair of connecting portions 205 and 206 connected to the first support segment 201 and the pair of connecting portions 405 and 406 connected to the second support segment 401. Therefore, the deformation of the first support segment 201 and the second support segment 401 does not interfere with each other, making the deformation of the first support segment 201 and the second support segment 401 easier.
[0047] The tube retaining clamp 100 of this application can fix the tube in a specific position and prevent the tube from moving. The tube is held in the tube retaining clamp by a pair of retaining arms 108 and 109 and a first retaining section 171 and a second retaining section 172. The pair of retaining arms 108 and 109 restrict the movement of the tube 501 in the radial direction of the tube 501, and the first support section 201 and the second support section 401 support and clamp the tube 501, restricting the movement of the tube 501 in the axial direction of the tube 501 (i.e., the width direction of the tube retaining clamp).
[0048] The tube retainer 100 of this application can stably hold the tube in the tube retainer 100 while having a small insertion force.
[0049] This application features two side-by-side first support segments 201 and second support segments 401, with their central axes offset. This allows the tube to be inserted into the first and second support segments 201 and 401 respectively, each applying opposite elastic forces to the tube, thereby clamping the tube 501 and restricting its movement along its axial direction. The offsetting of the central axes of the first and second support segments 201 provides the tube retaining clamp 100 with a strong clamping force, stably holding the tube 501 within it and preventing the tube 501 from easily sliding relative to the clamp along its axial direction.
[0050] When tube 501 is inserted into tube retainer 100, the ease with which the pair of retaining arms 108 and 109 and the support portion 180 deform jointly affect the insertion force. The distal ends 128 and 129 of the pair of retaining arms 108 and 109 are spaced from the sides 104 and 105, providing sufficient deformation space and facilitating deformation of the retaining arms 108 and 109. Simultaneously, the pair of retaining arms 108 and 109 have a certain length in their extension direction; that is, there is a certain distance between the distal ends 128 and 129 and the distal ends 116 and 117 of the sides 104 and 105. For the distal ends 128 and 129, the lever arm is longer when deformed by external force, making deformation easier. Compared to the support portion 180, the pair of retaining arms 108 and 109 deform more easily, having a smaller impact on the insertion force of the tube retainer 100. In this application, the support portion 180 includes a first support segment 201 and a second support segment 401. Both the first support segment 201 and the second support segment 401 are spaced apart from the base 103, making it easy to deform toward the base 103. The support portion 180 includes a free end 220 of the first support segment 201 and a free end 420 of the second support segment 401. The free ends 220 and 420 are spaced apart from the side portions 104 and 105, respectively, making it easy to deform toward the side portions 104 and 105. Therefore, when the tube is inserted into the tube retainer 100, the deformation of the support portion 180 is also relatively easy, and the arrangement of the support portion 180 makes the tube retainer 100 have a smaller insertion force.
[0051] As described above, the tube retaining clamp in this application has a strong retaining force, making it difficult for the tube 501 to move relative to the tube retaining clamp 100 along the axial direction of the tube. In some embodiments of this application, if the tube inserted into the tube retaining clamp 100 is moved along the axial direction, an additional external force of 10N-40N needs to be applied to the tube 501. At the same time, the insertion force of the tube retaining clamp 100 is small, making it easy for the tube 501 to be inserted into the tube retaining clamp 100.
[0052] In one application of this application, the pipe retaining clamp 100 is used to hold vehicle brake fluid lines or other water and air lines having multiple interfaces. The pipe retaining clamp 100 is connected to the vehicle body, so that the pipe held in the pipe retaining clamp 100 is stable relative to the vehicle body, so as to prevent the pipe from moving relative to the vehicle body during vehicle operation, thereby causing loosening and leakage at the interface.
[0053] Although only some features of this application have been illustrated and described herein, many modifications and variations will be apparent to those skilled in the art. Therefore, it should be understood that the appended claims are intended to cover all such modifications and variations that fall within the essential spirit and scope of this application.
Claims
1. A tube retaining clamp, characterized in that, The tube retainer has a width direction, a height direction, and a length direction, and the tube retainer includes: Base; A pair of oppositely arranged side portions, the pair of side portions being formed by extending upward from the base; A pair of retaining arms, the pair of retaining arms extending inward from the pair of sides and toward the base; A support portion, the two sides of which are connected to the base portion or the pair of side portions, the support portion having a certain distance between itself, the base portion, and the pair of side portions, the support portion having a working surface, the working surface being recessed towards the base portion; The support portion is located below the pair of retaining arms, and a clamping space is formed between the pair of retaining arms and the working surface; and The support portion includes a first support section and a second support section, which are arranged along the width direction of the tube retainer. The first support section includes a first arc-shaped working surface, and the second support section includes a second arc-shaped working surface. The central axis of the first working surface and the central axis of the second working surface are offset from each other in the length direction of the tube retainer.
2. The tube retaining clamp as described in claim 1, characterized in that: The first working surface has a first left working surface and a first right working surface, and the second working surface has a second left working surface and a second right working surface. The first left working surface and the second right working surface are respectively located on both sides of the central axis of the first working surface and the central axis of the second working surface. The second left working surface and the first right working surface are respectively located on both sides of the central axis of the first working surface and the central axis of the second working surface. The clamping space is configured to accommodate the clamped tube. When the first support segment and the second support segment are in a free state, the maximum distance between the first left working surface and the second right working surface in the length direction of the tube retainer on the projection plane in the width direction of the tube retainer is less than the diameter of the clamped tube.
3. The tube retaining clamp as described in claim 2, characterized in that: The two sides of the first support segment are connected to the base or the pair of sides, and the two sides of the second support segment are connected to the base or the pair of sides.
4. The tube retaining clamp as described in claim 2, characterized in that... The tube retaining clamp further includes: A pair of first connecting parts and a pair of second connecting parts, The first support segment is connected to the base or the pair of sides via the pair of first connecting portions; The second support segment is connected to the base or the pair of sides via the pair of second connecting parts.
5. The tube retaining clamp as described in claim 4, characterized in that: The first support segment includes a left end and a right end. At least one of the pair of first connecting portions is connected to the first support segment at a position lower than the corresponding one of the left end and the right end of the first support segment, thereby forming at least one of the left end and the right end of the first support segment as a free end of the first support segment. The second support segment includes a left end and a right end. At least one of the pair of second connecting portions is connected to the second support segment at a position lower than the corresponding one of the left end and the right end of the second support segment, thereby forming a free end of the second support segment.
6. The tube retaining clamp as described in claim 5, characterized in that: The first support segment has a first support segment free end, and the second support segment has a second support segment free end. The first support segment free end and the second support segment free end are located on both sides of the central axis of the first working surface.
7. The tube retaining clamp as described in claim 1, characterized in that... The tube retaining clamp further includes: The reinforcing part is located below the supporting part and is connected to the supporting part. There is a hollow space between the reinforcing part and the supporting part, and there is a certain distance between the reinforcing part and the base.
8. The tube retaining clamp as described in claim 2, characterized in that: There is a certain interval between the first support segment and the second support segment in the direction of extension of the central axis of the first working surface and the central axis of the second working surface.
9. The tube retaining clamp as described in claim 1, characterized in that: The tube retaining clamp is integrally molded using an injection molding process.
10. A tube retaining clamp, comprising: Base; A pair of oppositely arranged side portions, the pair of side portions extending upward from the base; A support portion having two sides connected to the base portion or the pair of sides, the support portion comprising: The first support segment includes an arc-shaped first working surface, which defines a first central axis. The second support section includes an arc-shaped second working surface, which defines a second central axis. The first central axis and the second central axis are offset along the length of the tube retaining clamp.
11. The tube retaining clamp as claimed in claim 10, characterized in that... Also includes: A pair of retaining arms that extend inward from the pair of sides.
12. The tube retaining clamp as described in claim 11, characterized in that: The first support section and the second support section are located below the pair of retaining arms.
13. The tube retaining clamp as described in claim 10, characterized in that: The first central axis is parallel to the second central axis.
14. The tube retaining clamp as described in claim 10, characterized in that: The first support segment and the second support segment each include a first side and a second side connected to the base or the pair of sides.
15. The tube retaining clamp as described in claim 10, characterized in that... Also includes: A pair of first connecting parts and a pair of second connecting parts, the pair of first connecting parts and the pair of second connecting parts respectively connecting the first support segment and the second support segment to the base.
16. The tube retaining clamp as described in claim 15, characterized in that: The first support segment includes a left end and a right end. At least one of the pair of first connecting portions is connected to the first support segment at a position lower than the corresponding one of the left and right ends, thereby forming at least one of the left and right ends of the first support segment as a free end of the first support segment. The second support segment includes a left end and a right end. At least one of the pair of second connecting portions is connected to the second support segment at a position lower than the corresponding one of the left end and the right end of the second support segment, thereby forming a free end of the second support segment.
17. The tube retaining clamp as described in claim 10, characterized in that: The first support segment has a first support segment free end, and the second support segment has a second support segment free end. The first support segment free end and the second support segment free end are disposed on both sides of the first central axis and the second central axis.
18. The tube retaining clamp as claimed in claim 10, characterized in that... Also includes: The reinforcing part is located below the supporting part and is connected to the supporting part. There is a hollow space between the reinforcing part and the supporting part, and there is a certain distance between the reinforcing part and the base.
19. The tube retaining clamp as described in claim 10, characterized in that: In the axial direction defined by the first central axis, there is a certain interval between the first support segment and the second support segment.
20. The tube retaining clamp as claimed in claim 10, characterized in that: The tube retaining clamp is a single piece.
Citation Information
Patent Citations
Tube clamp
JP2005240837A
Fastener for pipe or the like
US20040113027A1