Shock absorber
By designing a buffer with internal threads, limiting recesses and stop ribs, the noise and water inlet caused by the gap between vehicle door parts is solved, and the adjustment and anti-missive operation effect is achieved.
Patent Information
- Application Number
- CN202323669668.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-29
AI Technical Summary
When the vehicle's trunk door, hood and door doors form a slight gap with the vehicle body when closed, resulting in vibration and bumps and noise, and existing buffers are difficult to avoid misoperation by users and prevent rainwater from seeping in.
A buffer is designed including a base and an adjustment rod. The base is equipped with internal threads and limiting recesses. The adjustment rod can be rotated to a locked position to limit movement and rotation, and the stop ribs prevent excessive torque from causing errors. Operate, seal the flange covers the mounting holes to protect against water.
The buffer can be adjusted according to the gap between the door parts and the vehicle body, avoiding misoperation of users, and providing waterproofing functions to reduce the risk of noise and water entering the vehicle body.
Smart Images
Figure CN222276486U_ABST
Abstract
Description
Technical Field
[0001] The utility model generally relates to the technical field of buffers. Background Art
[0002] Usually, when the door parts of a vehicle such as the trunk door, hood and door are closed, a small gap will be formed between the vehicle body, resulting in: during the driving of the vehicle, the door parts will repeatedly collide with the vehicle body due to vibration and bumps, causing noise and abnormal sounds, affecting the user experience. In order to avoid the noise caused by these gaps, a buffer is usually installed on the vehicle body. It is desirable that the buffer can be adjusted according to the gap between the door part and the vehicle body. It is also desirable that the user's misoperation can be avoided when using the buffer. It is also desirable that the buffer can provide a water-proof function to prevent rainwater or cleaning water from penetrating into the vehicle body. Utility Model Content
[0003] The purpose of the present utility model is to provide an improved buffer to meet one or more of the above requirements for the buffer.
[0004] To this end, the utility model provides a buffer, the buffer comprising: a base, the base comprising a substantially tubular base body, the base body defining a longitudinal direction and comprising an internal thread and a limiting recess arranged on its inner surface; and an adjustment rod, the adjustment rod being at least partially received in the base body and comprising a rod body and a limiting arm, the rod body comprising an external thread matching the internal thread, the limiting arm extending from the rod body and comprising a limiting convex portion. Wherein, the adjustment rod can be rotated relative to the base body from an adjustment position along a first direction to a locking position; in the adjustment position, the internal thread is not engaged with the external thread to allow the adjustment rod to move relative to the base body along the longitudinal direction; in the locking position, the internal thread is engaged with the external thread to limit the adjustment rod from moving relative to the base body along the longitudinal direction, and the limiting recess is engaged with the limiting convex portion to limit the rotation of the adjustment rod relative to the base body. Wherein, the base body further includes a stop rib arranged on the inner surface thereof, and the stop rib is suitable for abutting against the rod body when the adjusting rod is in the locking position to prevent the adjusting rod from rotating along the first direction.
[0005] For the above-mentioned buffer, when the adjusting rod is in the adjusting position, the adjusting rod can be pushed from the initial position to the reference position along the longitudinal direction toward the base body by normally closing the door component (both the initial position and the reference position belong to the adjusting position). In the reference position, the buffer can better adapt to the gap between the door component and the vehicle body. The buffer also allows the adjusting rod to be locked by rotating the adjusting rod from the reference position to the locking position. In addition, the stop rib can also abut against the rod body of the adjusting rod to prevent the adjusting rod from further rotating in the first direction and leaving the locking position when, for example, the user accidentally applies a large torque to the adjusting rod in order to turn the adjusting rod toward the locking position.
[0006] According to the above technical concept, the utility model may further include any one or more of the following optional forms.
[0007] In some optional forms, the limiting recess can be disengaged from the limiting protrusion when the adjusting rod is subjected to a torque in a second direction opposite to the first direction and greater than a predetermined value in the locking position.
[0008] In some optional forms, the limiting recess includes a first side surface and a second side surface opposite to each other and a bottom surface connecting the first side surface and the second side surface, wherein the limiting protrusion is suitable for abutting the first side surface and the second side surface respectively when the adjusting rod is subjected to torque along the first direction and the second direction in the locking position, wherein the first side surface is substantially perpendicular to the direction of the movement trend of the limiting protrusion relative to the limiting recess when the adjusting rod is subjected to torque in the locking position, and wherein the second side surface is inclined relative to the first side surface.
[0009] In some optional forms, the second side surface is inclined at an angle ranging from 20° to 40° relative to the first side surface.
[0010] In some optional forms, the base body also includes a retaining recess arranged on its inner surface, wherein the retaining recess is suitable for engaging with the limiting protrusion when the adjustment rod is in the adjustment position to limit the rotation of the adjustment rod relative to the base body, and the retaining recess is capable of disengaging from the limiting protrusion when the adjustment rod is subjected to a torque in the first direction and greater than a predetermined value at the adjustment position.
[0011] In some optional forms, the retaining recess includes a first side wall and a second side wall opposite to each other and a bottom wall connecting the first side wall with the second side wall, wherein the limiting protrusion is suitable for abutting the first side wall and the second side wall respectively when the adjusting rod is subjected to a torque along the first direction and a second direction opposite to the first direction at the adjusting position, wherein the second side wall is substantially perpendicular to the direction of the movement trend of the limiting protrusion relative to the retaining recess when the adjusting rod is subjected to a torque at the adjusting position, and wherein the first side wall is inclined relative to the second side wall.
[0012] In some optional forms, the first side wall is inclined at an angle ranging from 20° to 40° relative to the second side wall.
[0013] In some optional forms, both the internal thread and the external thread are in the form of flat threads.
[0014] In some optional forms, the internal thread and the external thread are both in the form of oblique threads and are configured such that: when the adjusting rod rotates from the adjusting position to the locking position, the internal thread and the external thread engage with each other and drive the adjusting rod to move in a direction away from the base body.
[0015] In some optional forms, the adjustment rod includes a retaining arm extending substantially longitudinally from the rod body, and the retaining arm includes a retaining tooth matching the internal thread; wherein the retaining tooth is suitable for engaging with the internal thread when the adjustment rod is in the adjustment position to limit the movement of the adjustment rod along the longitudinal direction relative to the base body; and wherein the retaining tooth is capable of sliding on the internal thread along the longitudinal direction when the adjustment rod is subjected to an external force along the longitudinal direction and greater than a predetermined value at the adjustment position to allow the adjustment rod to move along the longitudinal direction relative to the base body.
[0016] In some optional forms, the base body includes a first end and a second end in the longitudinal direction, wherein the first end is open to allow the adjustment rod to be at least partially installed in the base body via the first end, and the second end is closed.
[0017] In some optional forms, the base body is adapted to be mounted in a mounting hole of a panel for supporting the buffer, wherein the base includes a sealing flange surrounding the base body, the sealing flange being adapted to cover a gap between the base body and an inner edge of the mounting hole.
[0018] The buffer according to the utility model can be adjusted according to the gap between the door component and the vehicle body, and can also avoid the user's misoperation when using the buffer. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Other features and advantages of the present invention will be better understood through the following optional embodiments described in detail in conjunction with the accompanying drawings, in which the same reference numerals identify the same or similar components, wherein:
[0020] Figure 1 is a perspective view of a buffer according to a first embodiment of the utility model;
[0021] Figure 2A and Figure 2B They are Figure 1 A perspective view and a side view of an adjustment rod of a buffer in FIG.
[0022] Figure 3A yes Figure 1 A bottom view of the base of the buffer;
[0023] Figure 3B yes Figure 3A A partial enlarged view of
[0024] Figure 4A yes Figure 1 A three-dimensional view of the base of the buffer in a top-down perspective;
[0025] Figure 4B yes Figure 4A A partial enlarged view of
[0026] Figure 5 yes Figure 1 A cross-sectional view of the buffer in which the adjustment rod is in an initial position;
[0027] Figure 6 yes Figure 1 A cross-sectional view of the buffer in which the adjustment rod is in a reference position;
[0028] Figure 7 yes Figure 1 A cross-sectional view of the buffer in which the adjustment rod is in a locked position;
[0029] Figure 8 yes Figure 1 A bottom view of the buffer in which the adjustment rod is in a locked position;
[0030] Fig. 9 is a side view of a buffer according to a second embodiment of the present invention, wherein the buffer is mounted to a panel;
[0031] Fig.10 yes Fig. 9 A perspective view of a base of a buffer in which the base is mounted to a panel;
[0032] Fig.11A and Fig. 11B They are Fig. 9 A perspective view and a top view of a base of a buffer in FIG.
[0033] Fig.12 yes Fig. 9 A three-dimensional view of an adjustment rod of a buffer in FIG.
[0034] Fig.13 yes Fig. 9 A cross-sectional view of the buffer in which the adjustment rod is in an initial position;
[0035] Fig.14 yes Fig. 9 A cross-sectional view of the buffer in which the adjustment rod is in a reference position;
[0036] Fig.15 yes Fig. 9 A cross-sectional view of the buffer in which the adjustment rod is in a locked position; and
[0037] Fig.16 yes Fig. 9 Bottom view of the buffer in FIG. 1 , wherein the adjustment lever is in the locked position. DETAILED DESCRIPTION
[0038] The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely exemplary of specific ways to implement and use the present invention, and are not intended to limit the scope of the present invention. When describing the structural positions of the various components, such as up, down, top, bottom, etc., the expressions of orientation are not absolute, but relative. When the various components are arranged as shown in the figure, these orientation expressions are appropriate, but when the positions of the various components in the figure change, these orientation expressions also change accordingly.
[0039] In the present invention, the longitudinal direction of a component refers to the direction along the length of the component, the transverse direction of a component refers to the direction perpendicular to the longitudinal direction of the component, and the circumferential direction of a component refers to the direction along the circumference of the component.
[0040] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the present utility model, unless otherwise expressly provided, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0041] Figures 1 to 8The buffer 10 and its components according to the first embodiment of the present invention are shown. The buffer 10 can be used, for example, to provide buffering between a door component (including but not limited to a trunk door, a door, and a hood) of a vehicle and a vehicle body.
[0042] Reference Figures 1 to 8 , the buffer 10 includes a base 100 and an adjustment rod 200. The base 100 is suitable for being mounted on a vehicle body, and the adjustment rod 200 is suitable for abutting and supporting a door component of the vehicle to provide buffering between the door component and the vehicle body through the buffer 10. The base 100 includes a substantially tubular base body 102, the base body 102 defines a longitudinal direction L and includes an internal thread 104 and a limiting recess 106 provided on an inner surface thereof. The adjustment rod 200 is at least partially received in the base body 102 and includes a rod body 202 and a limiting arm 204, the rod body 202 includes an external thread 206 matching the internal thread 104, the limiting arm 204 extends from the rod body 202 and includes a limiting protrusion 208. The adjustment rod 200 can be adjusted relative to the base body 102 from an adjustment position (see Figure 5 and Figure 6 ) is rotated in the first direction D1 to the locked position (see Figure 7 and Figure 8 ).like Figure 5 and Figure 6 As shown, in the adjustment position, the internal thread 104 is not engaged with the external thread 206 to allow the adjustment rod 200 to move relative to the base body 102 along the longitudinal direction L. Figure 7 As shown, in the locked position, the internal thread 104 is engaged with the external thread 206 to limit the movement of the adjustment rod 200 relative to the base body 102 along the longitudinal direction L, and the limiting recess 106 is engaged with the limiting protrusion 208 to limit the rotation of the adjustment rod 200 relative to the base body 102. The base body 102 also includes a stop rib 108 disposed on its inner surface, and the stop rib 108 can abut against the rod body 202 when the adjustment rod 200 is in the locked position to prevent the adjustment rod 200 from rotating along the first direction D1, as shown in FIG. Figure 8 shown.
[0043] For the above-mentioned buffer 10, the adjusting rod 200 can be pushed from the initial position to a certain reference position along the longitudinal direction L toward the base body 102 by normally closing the door component when the adjusting rod 200 is in the adjustment position. This operation is also referred to as the adjustment operation hereinafter. Hereinafter, the adjustment position of the adjusting rod 200 refers to the position where the internal thread 104 and the external thread 206 are not engaged to allow the longitudinal position of the adjusting rod 200 relative to the base body 102 to be adjusted by pushing the adjusting rod 200, so the adjustment position represents several longitudinal positions of the adjusting rod 200, and includes the aforementioned initial position and reference position. In the aforementioned reference position, the buffer 10 can better adapt to the gap between the door component and the vehicle body. The buffer 10 also allows the adjusting rod 200 to be locked by rotating the adjusting rod 200 from the reference position to the locking position. In the locked position, the rotation of the adjustment rod 200 can be limited by the engagement of the limiting recess 106 and the limiting protrusion 208 on the limiting arm 204; in addition, the stop rib 108 can also abut against the rod body 202 of the adjustment rod 200 to prevent the adjustment rod 200 from further rotating in the first direction D1 and disengaging from the locked position when, for example, a user accidentally applies a large torque to the adjustment rod 200 in order to rotate the adjustment rod 200 toward the locked position. However, if the stop rib is not provided, the large torque may cause the limiting arm 204 of the adjustment rod 200 that has moved to the locked position to deform, thereby causing the limiting protrusion 208 of the limiting arm 204 to unexpectedly disengage from the limiting recess 106 of the base body 102, thereby causing the adjustment rod 200 to disengage from the locked position.
[0044] Reference Figure 1 as well as FIG. 3A to FIG. 4B , the base 100 can be integrally formed of a high-resolution material and include a base body 102 and a seat 110 connected to each other. The base body 102 can include a first end 112 and a second end 114 in the longitudinal direction L, and the first end 112 and the second end 114 are both open. The adjustment rod 200 can be partially installed in the base body 102 via the first end 112. The seat 110 can include two fastening holes 116 for fasteners (such as bolts and studs, not shown) to pass through and then fix the base 100 to the vehicle body through the fasteners. The two fastening holes 116 can be respectively arranged on both sides of the base body 102. The seat 110 can also include two metal bushings 117 respectively arranged in the two fastening holes 116 to avoid stress concentration at the fastening holes 116 and cause structural damage.
[0045] Reference Figures 1 to 2BThe rod body 202 of the adjustment rod 200 may have a first longitudinal end 209 and a second longitudinal end 210 opposite to each other, the first longitudinal end 209 may extend from the base body 102, and the second longitudinal end 210 is received in the base body 102. The first longitudinal end 209 of the rod body 202 may be equipped with a buffer cap 212 made of an elastic material (e.g., a TPE material), and the buffer cap 212 is suitable for abutting against the door component to provide a better buffering effect. The buffer cap 212 may also include an indicating arrow 213 to indicate the rotation direction of rotating the adjustment rod 200 from the reference position to the locking position, that is, the first direction D1.
[0046] In the illustrated embodiment, the rod body 202 can have a substantially oblong cross-section and include two arc segments 214 arranged opposite to each other in the lateral direction of the rod body 202 and two flat segments 216 arranged opposite to each other in the lateral direction of the rod body 202, and the arc segments 214 and the flat segments 216 are alternately arranged in the circumferential direction of the rod body 202.
[0047] Reference FIG. 2A to FIG. 4B as well as Figure 5 and Figure 6 , the external thread 206 of the rod body 202 can extend along a portion of the outer circumference of the rod body 202 and include two external thread portions 218 disposed opposite to each other, more specifically, each arc segment 214 of the rod body 202 is provided with an external thread portion 218. Correspondingly, the internal thread 104 of the base body 102 can extend along a portion of the inner circumference of the base body 102 and include two internal thread portions 118 disposed opposite to each other, the two internal thread portions 118 being close to the first end portion 112 of the base body 102. The two external thread portions 218 of the adjustment rod 200 are adapted to be matched with the two internal thread portions 118 of the base body 102, respectively.
[0048] The adjustment rod 200 may further include two retaining arms 220. More specifically, each flat section 216 of the rod body 202 is provided with a retaining arm 220 near the bottom end of the external thread 214. Each retaining arm 220 is located between two external thread portions 218 in the circumferential direction of the rod body 202.
[0049] Each retaining arm 220 may extend longitudinally from the rod body 202 toward the first longitudinal end 209. Each retaining arm 220 may include a retaining tooth 222 at its free end that matches the internal thread 104 of the base body 102. In the illustrated embodiment, the retaining tooth 222 of each retaining arm 220 may have a generally triangular cross-section that matches the internal thread 104 of the base body 102.
[0050] The retaining teeth 222 of each retaining arm 220 are adapted to engage with the corresponding internal threaded portion 118 when the adjustment rod 200 is in the adjustment position to limit the movement of the adjustment rod 200 relative to the base body 102 along the longitudinal direction L. The retaining teeth 222 of each retaining arm 220 can slide along the longitudinal direction L on the corresponding internal threaded portion 118 when the adjustment rod 200 in the adjustment position is subjected to an external force along the longitudinal direction L and greater than a predetermined value, so as to allow the adjustment rod 200 to move along the longitudinal direction L relative to the base body 102.
[0051] In this way, when the adjustment rod 200 is in the initial position, for example, and is not subjected to external force, the adjustment rod 200 can be retained in the base body 102 by means of the engagement of the retaining teeth 222 of the retaining arm 220 with the internal thread 104 of the base body 102. During the adjustment operation, the pressure applied by the door component to the adjustment rod 200 can drive the retaining teeth 222 to slide on the internal thread 104 along the longitudinal direction L, thereby allowing the adjustment rod 200 to move toward the reference position relative to the base body 102 along the longitudinal direction L. After the adjustment operation is completed (i.e., the adjustment rod 200 reaches the reference position), the adjustment rod 200 can be retained in the base body 102 again by means of the engagement of the retaining teeth 222 of the retaining arm 220 with the internal thread 104 of the base body 102, so as to prevent the adjustment rod 200 from having an undesirable change in the longitudinal position relative to the base body 102 and affecting the buffering effect of the final buffer 10.
[0052] Reference Figures 2A to 6 , the adjustment rod 200 may include two limiting arms 204 arranged opposite to each other, more specifically, a limiting arm 204 is arranged at each arc section 214 of the rod body 202, and each limiting arm 204 extends from the corresponding arc section 214 toward the second longitudinal end 210 of the adjustment rod 200. Correspondingly, the base body 102 includes two retaining recesses 120 arranged on its inner surface and opposite to each other. The two retaining recesses 120 are arranged at the second end 114 of the base body 102 and extend substantially along the longitudinal direction L. Each retaining recess 120 can be engaged with the limiting convex portion 208 of the corresponding limiting arm 204 when the adjustment rod 200 is in the reference position to limit the rotation of the adjustment rod 200 relative to the base body 102, and each retaining recess 120 can be disengaged from the limiting convex portion 208 of the limiting arm 204 when the adjustment rod 200 in the reference position is subjected to a torque along the first direction D1 and greater than a predetermined value.
[0053] like Figure 5 As shown, when the adjustment rod 200 is in the initial position, the limiting protrusion 208 of each limiting arm 204 abuts against the inner surface of the base body 102 and is not engaged with the corresponding retaining recess 120. Figure 6As shown, when the adjustment rod 200 moves from the initial position along the longitudinal direction L toward the base body 102 to the reference position, the limiting protrusion 208 of each limiting arm 204 engages with the corresponding retaining recess 120 to provide the user with operational feedback and remind the user that the adjustment rod 200 has reached the reference position; after the adjustment rod 200 moves to the reference position, a torque along the first direction D1 and greater than a predetermined value can be applied to the adjustment rod 200, so that the limiting protrusion 208 of each limiting arm 204 disengages from the corresponding retaining recess 120 to allow the adjustment rod 200 to rotate from the reference position along the first direction D1 toward the locking position.
[0054] In the illustrated embodiment, the holding recess 120 includes a first side wall 122 and a second side wall 124 that are opposite to each other, and a bottom wall 126 that connects the first side wall 122 to the second side wall 124. The limiting protrusion 208 of the limiting arm 204 is adapted to abut against the first side wall 122 and the second side wall 124 respectively when the adjusting rod 200 is subjected to a torque in a first direction D1 and a second direction D2 that is opposite to the first direction D1 at the reference position. The second side wall 124 is substantially perpendicular to the direction of the movement trend of the limiting protrusion 208 relative to the holding recess 120 when the adjusting rod 200 is subjected to a torque at the reference position, and the first side wall 122 is inclined relative to the second side wall 124.
[0055] The structure of the retaining recess 120 allows: when the adjusting rod 200 is subjected to a torque in the second direction D2 at the reference position, the contact surface between the second side wall 124 of the retaining recess 120 and the limiting protrusion 208 of the limiting arm 204 is substantially perpendicular to the direction of the movement trend of the limiting protrusion 208 relative to the retaining recess 120, so as to provide a relatively strong restriction on the rotation of the adjusting rod 200 in the second direction D2, so as to prevent the user from misoperating (i.e., rotating the adjusting rod 200 toward the second direction D2) after the adjusting rod 200 moves to the reference position, thereby causing The adjusting rod 200 cannot smoothly reach the locking position; when the adjusting rod 200 is subjected to a torque along the first direction D1 at the reference position, the contact surface between the first side wall 122 of the retaining recess 120 and the limiting protrusion 208 of the limiting arm 204 is not perpendicular to the direction of the movement trend of the limiting protrusion 208 relative to the retaining recess 120, so as to provide a relatively weak limiting effect on the rotation of the adjusting rod 200 along the first direction D1, thereby allowing the user to rotate the adjusting rod 200 from the reference position along the first direction D1 toward the locking position by applying an appropriate torque.
[0056] The greater the angle at which the first side wall 122 is inclined relative to the second side wall 124, the weaker the limiting effect of the first side wall 122 on the rotation of the adjustment rod 200 along the first direction D1. Optionally, the angle at which the first side wall 122 is inclined relative to the second side wall 124 is in the range of 20° to 40°. In the illustrated embodiment, the first side wall 122 forms an obtuse angle with the bottom wall 126, and the second side wall 124 is substantially perpendicular to the bottom wall 126. Optionally, the angle formed by the first side wall 122 and the bottom wall 126 is in the range of 110° to 130°.
[0057] Reference FIG. 2A to FIG. 4B In the illustrated embodiment, the external thread 206 of the adjustment rod 200 is in the form of a flat thread, and accordingly, the internal thread 104 of the base body 102 is also in the form of a flat thread. In this way, when the adjustment rod 200 is rotated from the reference position toward the locking position so that the external thread 206 and the internal thread 104 engage with each other, the longitudinal position of the adjustment rod 200 relative to the base body 102 does not change, thereby ensuring that the buffer 10 still better adapts to the gap between the door component and the vehicle body after the adjustment rod 200 reaches the locking position.
[0058] Continue to refer to FIG. 2A to FIG. 4B as well as Figures 7 and 8 The base body 102 further includes two stopper recesses 106 disposed on its inner surface and opposite to each other. The two stopper recesses 106 are disposed close to the second end 114 of the base body 102 and extend substantially along the longitudinal direction L. The retaining recesses 120 and the stopper recesses 106 of the base body 102 are alternately arranged in the circumferential direction of the base body 102. Each stopper recess 106 can be substantially longitudinally aligned with the corresponding internal threaded portion 118. Accordingly, the stopper protrusion 208 of each stopper arm 204 can be substantially longitudinally aligned with the corresponding external threaded portion 218.
[0059] like Figures 7 and 8 As shown, when the adjustment rod 200 rotates from the reference position to the locking position, the internal thread 104 engages with the external thread 206 to limit the adjustment rod 200 from moving relative to the base body 102 along the longitudinal direction L, and the limiting protrusion 208 of each limiting arm 204 engages with the corresponding limiting recess 106 to limit the rotation of the adjustment rod 200 relative to the base body 102. Each limiting recess 106 can be disengaged from the corresponding limiting protrusion 208 when the adjustment rod 200 is subjected to a torque greater than a predetermined value along the second direction D2 at the locking position, so as to allow the adjustment rod 200 to be rotated back to the reference position from the locking position, thereby allowing the longitudinal position of the adjustment rod 200 relative to the base body 102 to be readjusted.
[0060] In the illustrated embodiment, the limiting recess 106 includes a first side surface 128 and a second side surface 130 that are opposite to each other, and a bottom surface 132 that connects the first side surface 128 to the second side surface 130. The limiting protrusion 208 of the limiting arm 204 is adapted to abut against the first side surface 128 and the second side surface 130, respectively, when the adjustment rod 200 is subjected to a torque in the first direction D1 and the second direction D2 in the locked position. The first side surface 128 is substantially perpendicular to the direction of the movement trend of the limiting protrusion 208 relative to the limiting recess 106 when the adjustment rod 200 is subjected to a torque in the locked position, and the second side surface 130 is inclined relative to the first side surface 128.
[0061] The structure of the limiting recess 106 allows: when the adjusting rod 200 is subjected to a torque in the first direction D1 at the locked position, the contact surface between the first side surface 128 of the limiting recess 106 and the limiting protrusion 208 of the limiting arm 204 is substantially perpendicular to the direction of the movement trend of the limiting protrusion 208 relative to the limiting recess 106, so as to provide a relatively strong restriction on the rotation of the adjusting rod 200 in the first direction D1, so as to prevent the user from misoperating after the adjusting rod 200 reaches the locked position (i.e., continuing to rotate the adjusting rod 200 in the first direction D1). When the adjusting rod 200 is subjected to a torque in the second direction D2 at the locking position, the contact surface between the second side surface 130 of the limiting recess 106 and the limiting protrusion 208 of the limiting arm 204 is not perpendicular to the direction of the movement trend of the limiting protrusion 208 relative to the limiting recess 106, so as to provide a relatively weak restriction on the rotation of the adjusting rod 200 in the second direction D2, thereby allowing the user to rotate the adjusting rod 200 from the locking position toward the reference position by applying a suitable torque.
[0062] The greater the angle at which the second side surface 130 is inclined relative to the first side surface 128, the weaker the limiting effect of the second side surface 130 on the rotation of the adjustment rod 200 along the second direction D2. Optionally, the angle at which the second side surface 130 is inclined relative to the first side surface 128 is in the range of 20° to 40°. In the illustrated embodiment, the first side surface 128 is substantially perpendicular to the bottom surface 132, and the second side surface 130 forms an obtuse angle with the bottom surface 132. Optionally, the angle formed by the second side surface 130 and the bottom surface 132 is in the range of 110° to 130°.
[0063] Reference FIG. 3A to FIG. 3B as well as Figure 8 , the base 100 may include two stop ribs 108 disposed opposite to each other. Each stop rib 108 is disposed adjacent to a corresponding internal thread portion 118 and extends substantially along the longitudinal direction L. Each stop rib 108 may abut against the rod body 202 when the adjustment rod 200 is in the locked position to prevent the adjustment rod 200 from rotating along the first direction D1, thereby avoiding misoperation by the user.
[0064] It is to be understood that the number of the above-mentioned features of the buffer 10 is only an example and not a limitation, and the number of the features can be changed as needed.
[0065] Figures 9 to 16 The buffer 10 and its components according to the second embodiment of the present invention are shown. The structure and working principle of the buffer according to the second embodiment are similar to those of the buffer according to the first embodiment, and the differences between the two are mainly described below.
[0066] Reference Figures 9 to 16 According to the second embodiment, the buffer 10 includes a base 100 and an adjustment rod 200. The base 100 is suitable for being mounted on a vehicle body, and the adjustment rod 200 is suitable for abutting and supporting a door component of the vehicle to provide buffering between the door component and the vehicle body through the buffer 10. The base 100 includes a substantially tubular base body 102, the base body 102 defines a longitudinal direction L and includes an internal thread 104 and a limiting recess 106 provided on an inner surface thereof. The adjustment rod 200 is at least partially received in the base body 102 and includes a rod body 202 and a limiting arm 204, the rod body 202 includes an external thread 206 matching the internal thread 104, the limiting arm 204 extends from the rod body 202 and includes a limiting protrusion 208. The adjustment rod 200 is capable of being adjusted relative to the base body 102 from an adjustment position (see Fig.13 and Fig.14 ) is rotated in the first direction D1 to the locked position (see Fig.15 and Fig.16 ).like Fig.13 and Fig.14 As shown, in the adjustment position, the internal thread 104 is not engaged with the external thread 206 to allow the adjustment rod 200 to move relative to the base body 102 along the longitudinal direction L. Fig.15 As shown, in the locked position, the internal thread 104 is engaged with the external thread 206 to limit the adjustment rod 200 from moving relative to the base body 102 along the longitudinal direction L, and the limiting recess 106 is engaged with the limiting convex portion 208 of the limiting arm 204 to limit the adjustment rod 200 from rotating relative to the base body 102. The base body 102 also includes a stop rib 108 disposed on its inner surface, and the stop rib 108 can abut against the rod body 202 when the adjustment rod 200 is in the locked position to prevent the adjustment rod 200 from rotating along the first direction D1, as shown in FIG. Fig.16 shown.
[0067] Reference Fig. 9 and Fig.10The base body 102 of the buffer 10 is suitable for being installed in the mounting hole 22 of the panel 20 that carries the buffer 10. The base 100 includes a sealing flange 134 surrounding the base body 102, and the sealing flange 134 is suitable for covering the gap between the base body 102 and the inner edge of the mounting hole 22 to prevent rainwater or cleaning water from the outside from flowing into the vehicle body through the gap. The base 100 may also include a retaining structure 136 that prevents the base 100 from moving relative to the panel 20 along the longitudinal direction L and an anti-rotation structure 138 that prevents the base 100 from rotating relative to the mounting hole 22, so as to fix the buffer 10 to the panel 20.
[0068] Reference Figures 10 to 11B The base body 102 of the base 100 includes a first end 112 and a second end 114 in the longitudinal direction L. The first end 112 is open to allow the adjustment rod 200 to be at least partially installed in the base body 102 via the first end 112, and the second end 114 is closed. The closed second end 114 can prevent rainwater or cleaning water from the outside from flowing into the vehicle body through the base body 102.
[0069] Reference FIG. 11A to FIG. 14 The adjustment rod 200 further includes a retaining arm 220 extending from the rod body 202 substantially along the longitudinal direction L, and the retaining arm 220 includes a retaining tooth 222 matching the internal thread 104. Fig.13 and Fig.14 As shown, the retaining teeth 222 are suitable for engaging with the internal thread 104 when the adjusting rod 200 is in the adjusting position to limit the movement of the adjusting rod 200 relative to the base body 102 along the longitudinal direction L; and the retaining teeth 222 can slide on the internal thread 104 along the longitudinal direction L when the adjusting rod 200 in the adjusting position is subjected to an external force along the longitudinal direction L and greater than a predetermined value to allow the adjusting rod 200 to move along the longitudinal direction L relative to the base body 102.
[0070] Reference FIG. 11A to FIG. 12 as well as Fig.16, the base body 102 can be made of polymer material by injection molding. Considering that the second end 114 is closed, the limiting recess 106 of the base body 102 can be set to be staggered with the internal thread 104 of the base body 102 in the longitudinal direction L, so as to improve the feasibility of the injection molding process and reduce the manufacturing difficulty. The limiting recess 106 of the base body 102 includes a first side surface 128 and a second side surface 130 opposite to each other and a bottom surface 132 connecting the first side surface 128 and the second side surface 130. The limiting protrusion 208 of the limiting arm 204 is suitable for abutting the first side surface 128 and the second side surface 130 respectively when the adjusting rod 200 is subjected to torque along the first direction D1 and the second direction D2 in the locking position. The first side surface 128 and the second side surface 128 are both substantially perpendicular to the direction of the movement trend of the limiting protrusion 208 relative to the limiting recess 106 when the adjusting rod 200 is subjected to torque in the locked position, so as to provide a strong limiting effect on the rotation of the adjusting rod 200, thereby preventing the adjusting rod 200 from leaving the locked position. In addition, the base body 102 is not provided with the retaining recess in the first embodiment.
[0071] The internal thread 104 of the base body 102 and the external thread 206 of the adjustment rod 200 are both in the form of oblique threads, and are configured such that: when the adjustment rod 200 rotates from the adjustment position to the locking position, the internal thread 104 and the external thread 206 engage with each other and drive the adjustment rod 200 to move in a direction away from the base body 102. In this way, when the adjustment rod 200 rotates from the reference position to the locking position, the adjustment rod 200 will move toward the door component by a certain distance to further enhance the support of the adjustment rod 200 on the door component, thereby providing a better buffering effect.
[0072] The above only describes the application of the buffer by taking the use of the buffer according to the present invention in a vehicle as an example. It can be understood that the buffer according to the present invention can be applied to various other scenarios where buffering is required.
[0073] It should also be understood that the various components and features described herein may be made of a variety of materials, including but not limited to polymers, rubbers, metals, and other suitable materials or combinations of materials known to those skilled in the art. Figures 1 to 16 The illustrated embodiments merely show the shapes, sizes and arrangements of the various optional components of the buffer according to the present invention, but they are only for illustration and not limitation. Other shapes, sizes and arrangements may also be adopted without departing from the spirit and scope of the present invention.
[0074] The technical content and technical features of the utility model have been disclosed above. However, it is understandable that under the creative idea of the utility model, those skilled in the art can easily make modifications, variations and equivalents of these embodiments according to the disclosed content. For example, a feature shown or described as part of an embodiment can be used together with another embodiment to produce another embodiment. The present disclosure is intended to cover these modifications, variations and equivalents. The description of the above embodiments is exemplary rather than restrictive, and the scope of protection of the utility model is determined by the claims.
Claims
1. A buffer (10), characterized in that: The buffer (10) comprises: A base (100), the base (100) comprising a substantially tubular base body (102), the base body (102) defining a longitudinal direction (L) and comprising an internal thread (104) and a stop recess (106) disposed on an inner surface thereof; and an adjusting rod (200), the adjusting rod (200) being at least partially received in the base body (102) and comprising a rod body (202) and a limiting arm (204), the rod body (202) comprising an external thread (206) matching the internal thread (104), the limiting arm (204) extending from the rod body (202) and comprising a limiting protrusion (208); The adjusting rod (200) is capable of rotating relative to the base body (102) from an adjusting position along a first direction (D1) to a locking position; in the adjusting position, the internal thread (104) and the external thread (206) are not engaged to allow the adjusting rod (200) to move relative to the base body (102) along the longitudinal direction (L); in the locking position, the internal thread (104) and the external thread (206) are engaged to limit the movement of the adjusting rod (200) relative to the base body (102) along the longitudinal direction (L), and the limiting recess (106) and the limiting protrusion (208) are engaged to limit the rotation of the adjusting rod (200) relative to the base body (102); The base body (102) further comprises a stop rib (108) arranged on its inner surface, and the stop rib (108) is suitable for abutting against the rod body (202) when the adjusting rod (200) is in the locking position to prevent the adjusting rod (200) from rotating along the first direction (D1).
2. The buffer (10) according to claim 1, characterized in that The limiting recess (106) can be disengaged from the limiting projection (208) when the adjusting rod (200) is subjected to a torque in a second direction (D2) opposite to the first direction (D1) and greater than a predetermined value at the locking position.
3. The buffer (10) according to claim 2, characterized in that The limiting recess (106) includes a first side surface (128) and a second side surface (130) opposite to each other, and a bottom surface (132) connecting the first side surface (128) and the second side surface (130), wherein the limiting protrusion (208) is suitable for respectively abutting the first side surface (128) and the second side surface (130) when the adjusting rod (200) is subjected to torque along the first direction (D1) and the second direction (D2) at the locking position, wherein the first side surface (128) is substantially perpendicular to the direction of the movement trend of the limiting protrusion (208) relative to the limiting recess (106) when the adjusting rod (200) is subjected to torque at the locking position, and wherein the second side surface (130) is inclined relative to the first side surface (128).
4. The buffer (10) according to claim 3, characterized in that The second side surface (130) is inclined at an angle in a range of 20° to 40° relative to the first side surface (128).
5. The buffer (10) according to any one of claims 1 to 4, characterized in that: The base body (102) further comprises a retaining recess (120) arranged on its inner surface, wherein the retaining recess (120) is adapted to engage with the limiting protrusion (208) when the adjusting rod (200) is in the adjusting position to limit the rotation of the adjusting rod (200) relative to the base body (102), and the retaining recess (120) is capable of disengaging from the limiting protrusion (208) when the adjusting rod (200) is subjected to a torque in the first direction (D1) and greater than a predetermined value at the adjusting position.
6. The buffer (10) according to claim 5, characterized in that The retaining recess (120) comprises a first side wall (122) and a second side wall (124) opposite to each other and a bottom wall (126) connecting the first side wall (122) and the second side wall (124), wherein the limiting protrusion (208) is suitable for respectively abutting against the first side wall (122) and the second side wall (124) when the adjusting rod (200) is subjected to a torque along the first direction (D1) and a second direction (D2) opposite to the first direction (D1) at the adjusting position, wherein the second side wall (124) is substantially perpendicular to the direction of the movement trend of the limiting protrusion (208) relative to the retaining recess (120) when the adjusting rod (200) is subjected to a torque at the adjusting position, and wherein the first side wall (122) is inclined relative to the second side wall (124).
7. The buffer (10) according to claim 6, characterized in that The first side wall (122) is inclined at an angle in a range of 20° to 40° relative to the second side wall (124).
8. The buffer (10) according to any one of claims 1 to 4, characterized in that: The internal thread (104) and the external thread (206) are both in the form of flat threads.
9. The buffer (10) according to any one of claims 1 to 4, characterized in that: The internal thread (104) and the external thread (206) are both in the form of oblique threads and are configured such that: when the adjusting rod (200) rotates from the adjusting position to the locking position, the internal thread (104) and the external thread (206) engage with each other and drive the adjusting rod (200) to move in a direction away from the base body (102).
10. The buffer (10) according to any one of claims 1 to 4, characterized in that The adjustment rod (200) includes a retaining arm (220) extending approximately longitudinally from the rod body (202), and the retaining arm (220) includes a retaining tooth (222) matching the internal thread (104); wherein the retaining tooth (222) is suitable for engaging with the internal thread (104) when the adjustment rod (200) is in the adjustment position to limit the movement of the adjustment rod (200) along the longitudinal direction (L) relative to the base body (102); and wherein the retaining tooth (222) can slide along the longitudinal direction (L) on the internal thread (104) when the adjustment rod (200) is subjected to an external force along the longitudinal direction (L) and greater than a predetermined value at the adjustment position to allow the adjustment rod (200) to move along the longitudinal direction (L) relative to the base body (102).
11. The buffer (10) according to any one of claims 1 to 4, characterized in that The base body (102) includes a first end (112) and a second end (114) in the longitudinal direction (L), wherein the first end (112) is open to allow the adjustment rod (200) to be at least partially installed in the base body (102) via the first end (112), and the second end (114) is closed.
12. The buffer (10) according to any one of claims 1 to 4, characterized in that The base body (102) is suitable for being installed in a mounting hole (22) of a panel (20) for supporting the buffer (10), wherein the base (100) includes a sealing flange (134) surrounding the base body (102), and the sealing flange (134) is suitable for covering a gap between the base body (102) and an inner edge of the mounting hole (22).