Adjustable clamping stroke heat insulation pad buckle

Abstract

The application relates to a heat insulation pad buckle capable of adjusting clamping stroke, which comprises a pre-buried bolt fixed on a vehicle body sheet metal, one end of the pre-buried bolt protruding from the vehicle body sheet metal and being provided with external threads; a rack sleeve which is a hollow cylindrical structure and is in interference connection with the pre-buried bolt, a plurality of interval arranged clamping grooves being arranged on the outer wall of the rack sleeve along the axial direction of the rack sleeve; a locking washer which is a circular ring structure and is sleeved on the rack sleeve, the locking washer being provided with a locking clamping tongue in clamping connection with the clamping groove. When the heat insulation pad of different thicknesses is installed, the heat insulation pad is first inserted into the rack sleeve, then the locking washer is sleeved on the rack sleeve and is clamped and connected with the clamping groove of the rack sleeve by the locking clamping tongue, until the heat insulation pad is clamped between the locking washer and the vehicle body sheet metal, and the installation requirement of the heat insulation pad of different thicknesses is met.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a heat insulation pad clip with adjustable snap-fit ​​travel. Background Technology

[0002] A heat insulation layer needs to be installed between the cab floor and the engine below to insulate against the engine's high temperature, reduce the ambient temperature inside the cab, and improve the overall vehicle comfort. The existing heat insulation pad installation mainly involves drilling holes in the floor and using bolts and heat insulation pad fixing clips to fix the heat insulation pad.

[0003] Existing snap-fit ​​designs are generally easy to install but difficult to remove; even if removed, the snap-fit ​​is usually damaged, and repairs often require destroying the entire device, resulting in a huge waste of resources and difficulties in returning the device to the customer.

[0004] Secondly, existing snap-fit ​​designs use plastic snap-fits with a single snap-fit ​​stroke, which cannot meet the installation requirements of insulation pads of different thicknesses. Therefore, a snap-fit ​​structure that is easy to install, low in cost, highly reliable, reusable, and has an adjustable snap-fit ​​stroke is needed. Summary of the Invention

[0005] This application provides an adjustable snap-fit ​​clip for a heat insulation pad, which solves the problem in related technologies that snap-fit ​​clips cannot meet the installation requirements of heat insulation pads of different thicknesses.

[0006] This application provides an adjustable snap-fit ​​heat insulation pad buckle, including:

[0007] An embedded bolt is fixed to the vehicle body sheet metal, and one end of the embedded bolt protrudes from the vehicle body sheet metal and is provided with external threads;

[0008] A rack sleeve, wherein the rack sleeve is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt, and a number of spaced grooves are arranged sequentially along the axial direction of the rack sleeve on the outer wall of the rack sleeve.

[0009] A locking washer, which is an annular structure and is sleeved on the rack sleeve, and the locking washer is provided with a locking tongue that is snapped into the slot.

[0010] The adjustable snap-fit ​​heat insulation pad buckle of this application is interference-fitted with a rack sleeve by a pre-embedded bolt embedded in the vehicle body sheet metal. Several spaced slots are arranged sequentially along the axial direction of the rack sleeve on the outer wall of the rack sleeve. A locking washer is fitted on the rack sleeve and the locking washer is snapped into the slot on the rack sleeve through a locking tongue.

[0011] When installing heat insulation pads of different thicknesses, first insert the heat insulation pad onto the rack sleeve, then put the locking washer onto the rack sleeve and use the locking tongue to connect with the slot of the rack sleeve until the heat insulation pad is clamped between the locking washer and the vehicle body sheet metal, thus meeting the installation requirements of heat insulation pads of different thicknesses.

[0012] In some embodiments: the outer wall of the rack sleeve is provided with a plane parallel to the axis of the rack sleeve, and the plane is provided with a plurality of locking teeth arranged in sequence at intervals, and the locking groove is formed between two adjacent locking teeth.

[0013] In some embodiments: the locking tooth is a right-angled triangle structure, one right-angled side of the locking tooth is perpendicular to the axis of the rack sleeve, and the hypotenuse of the locking tooth is inclined in a direction away from the vehicle body sheet metal.

[0014] In some embodiments: the outer wall of the rack sleeve is provided with a helical external thread, two adjacent helical external threads form the groove, the locking washer is provided with a helical internal thread, the helical internal thread forms the locking tongue, and the helical external thread of the rack sleeve is threadedly connected to the helical internal thread of the locking washer.

[0015] In some embodiments, the rack sleeve is provided with a plurality of breakage grooves, which are arranged sequentially at intervals along the axial direction of the rack sleeve, and the spacing between two adjacent breakage grooves is the same.

[0016] In some embodiments: the locking washer has a through hole for inserting into the rack sleeve, the locking tongue is located on the side wall of the through hole, the locking tongue is a right-angled triangle structure, one right-angled side of the locking tongue is perpendicular to the axis of the locking washer, and the hypotenuse of the locking tongue is inclined toward the direction close to the vehicle body sheet metal.

[0017] In some embodiments: a connecting portion is provided between the locking latch and the locking washer, and an insertion hole for an unlocking pin is provided on the connecting portion, the insertion hole facing a right-angled side of the locking latch.

[0018] In some embodiments: the locking washer has a through hole for inserting into the rack sleeve, the locking tongue is pluggable and detachable in the locking washer, and the end of the locking tongue near the rack sleeve has a wedge-shaped tip that is snapped into the slot.

[0019] In some embodiments: the locking tongue is a rectangular sheet structure, the locking washer has a radially opened mounting hole for inserting the locking tongue, the mounting hole and the through hole are perpendicular to each other and connected, the side of the locking tongue away from the vehicle body sheet metal has a positioning hole, and the locking washer has a positioning protrusion adapted to the positioning hole.

[0020] In some embodiments, both the rack sleeve and the locking washer are injection molded parts.

[0021] The beneficial effects of the technical solution provided in this application include:

[0022] This application provides an adjustable snap-fit ​​heat insulation pad buckle. The adjustable snap-fit ​​heat insulation pad buckle includes a pre-embedded bolt fixed to the vehicle body sheet metal, one end of which protrudes from the sheet metal and has an external thread; a rack sleeve, which is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt; and a plurality of spaced slots arranged sequentially along the axial direction of the rack sleeve on its outer wall; and a locking washer, which is an annular structure fitted onto the rack sleeve, and has a locking tongue that connects to the snap-fit ​​slots.

[0023] Therefore, the adjustable snap-fit ​​heat insulation pad buckle of this application is interference-fitted with a rack sleeve to a pre-embedded bolt embedded in the vehicle body sheet metal. Several spaced grooves are arranged sequentially along the axial direction of the rack sleeve on its outer wall. A locking washer is fitted onto the rack sleeve, and the locking washer is connected to the grooves on the rack sleeve via a locking tongue. When installing heat insulation pads of different thicknesses, the heat insulation pad is first inserted into the rack sleeve, then the locking washer is fitted onto the rack sleeve and connected to the grooves on the rack sleeve using the locking tongue, until the heat insulation pad is clamped between the locking washer and the vehicle body sheet metal, thus meeting the installation requirements for heat insulation pads of different thicknesses. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of this application embodiment excluding the rack sleeve and locking washer.

[0027] Figure 3 This is a schematic diagram of the rack sleeve structure according to an embodiment of this application;

[0028] Figure 4 This is a first-view structural schematic diagram of the locking washer according to an embodiment of this application;

[0029] Figure 5 This is a second-view structural schematic diagram of the locking washer according to an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of another embodiment of the present application;

[0031] Figure 7 This is a schematic diagram of the structure of yet another embodiment of this application;

[0032] Figure 8 This is a schematic diagram of the structure of the locking washer and the locking tongue in an embodiment of this application;

[0033] Figure 9 This is a schematic diagram of the structure of a locking washer according to another embodiment of this application;

[0034] Figure 10 This is a top view of the locking tongue structure according to an embodiment of this application;

[0035] Figure 11 This is a front view of the locking tongue structure according to an embodiment of this application.

[0036] In the diagram: 1. Embedded bolt; 2. Vehicle body sheet metal; 3. Heat insulation pad; 4. Rack sleeve; 5. Locking washer; 6. Unlocking pin; 41. Slot; 42. Flat surface; 43. Locking tooth; 44. Breaking groove; 51. Locking tongue; 52. Connecting part; 53. Mounting hole; 54. Wedge-shaped tip; 55. Positioning hole. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] This application provides an adjustable snap-fit ​​clip for a heat insulation pad, which solves the problem in related technologies that snap-fit ​​clips cannot meet the installation requirements of heat insulation pads of different thicknesses.

[0039] See Figure 1 and Figure 7 As shown, this application embodiment provides an adjustable snap-fit ​​heat insulation pad buckle, including:

[0040] The pre-embedded bolt 1 is fixed to the vehicle body sheet metal 2 by riveting or welding. One end of the pre-embedded bolt 1 protrudes from the vehicle body sheet metal 2 and is provided with external threads. The external threads at one end of the pre-embedded bolt 1 are used to insert into the inner hole of the rack sleeve 4 to achieve a quick and reliable connection between the two.

[0041] The rack sleeve 4 is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt 1. The external thread of one end of the pre-embedded bolt 1 is inserted into the inner hole of the rack sleeve 4 to achieve a fixed connection. Several slots 41 are arranged at intervals on the outer wall of the rack sleeve 4 along the axial direction of the rack sleeve 4.

[0042] A locking washer 5, which is an annular structure, is fitted onto the rack sleeve 4. The locking washer 5 has a locking tongue 51 that engages with a groove 41 on the outer wall of the rack sleeve 4. After the locking washer 5 is fitted onto the rack sleeve 4, the locking tongue 51 on the locking washer 5 sequentially engages with the groove 41 on the rack sleeve 4 along the axial direction of the rack sleeve 4 until the heat insulation pad 3 is clamped between the locking washer 5 and the vehicle body sheet metal 2, thus achieving a fixed connection of the heat insulation pad 3.

[0043] In this embodiment, the adjustable snap-fit ​​heat insulation pad is interference-fitted to a rack sleeve 4 via a pre-embedded bolt 1 embedded in the vehicle body sheet metal 2. A plurality of spaced-apart slots 41 are arranged sequentially along the axial direction of the rack sleeve 4 on its outer wall. A locking washer 5 is fitted onto the rack sleeve 4, and the locking washer 5 is snap-fitted into the slots 41 on the rack sleeve 4 via a locking tongue 51.

[0044] The locking washer 5 has an adjustable stroke on the rack sleeve 4. When installing heat insulation pads 3 of different thicknesses, the heat insulation pad 3 is first inserted into the rack sleeve 4, and then the locking washer 5 is placed on the rack sleeve 4 and connected to the slot 41 of the rack sleeve 4 by the locking tab 51 until the heat insulation pad 3 is clamped between the locking washer 5 and the vehicle body sheet metal 2, thereby meeting the installation requirements of heat insulation pads 3 of different thicknesses.

[0045] In some alternative embodiments: see Figures 1 to 5 As shown, this application embodiment provides an adjustable snap-fit ​​heat insulation pad buckle. The outer wall of the rack sleeve 4 of the heat insulation pad buckle is provided with a plane 42 parallel to the axis of the rack sleeve 4. A plurality of sequentially spaced snap teeth 43 are provided on the plane 42, and a snap groove 41 is formed between two adjacent snap teeth 43. Both the rack sleeve 4 and the locking washer 5 are injection molded parts to improve their corrosion resistance.

[0046] The locking tooth 43 is preferably, but not limited to, a right-angled triangle structure, wherein one right-angled side of the locking tooth 43 is perpendicular to the axis of the rack sleeve 4, and the hypotenuse of the locking tooth 43 is inclined away from the vehicle body sheet metal 2. When the locking washer 5 is fitted onto the rack sleeve 4, the hypotenuse on the locking tooth 43 provides a guide for the locking tongue 51 of the locking washer 5, thereby allowing the locking washer 5 to move in a direction close to the vehicle body sheet metal 2.

[0047] After the locking washer 5 is installed in place, the right-angled edge on the tooth 43 provides axial positioning for the locking tongue 51 of the locking washer 5, so as to prevent the locking washer 5 from being dislodged from the locking washer 5 under the pushing action of the heat insulation pad 3, thereby reliably clamping the heat insulation pad 3 between the locking washer 5 and the vehicle body sheet metal 2, and providing positioning for the heat insulation pad 3.

[0048] In some alternative embodiments: see Figure 7 As shown, this application embodiment provides an adjustable snap-fit ​​heat insulation pad buckle, which includes: a pre-embedded bolt 1, which is fixed to the vehicle body sheet metal 2 by riveting or welding. One end of the pre-embedded bolt 1 protrudes from the vehicle body sheet metal 2 and is provided with external threads. The external threads at one end of the pre-embedded bolt 1 are used to insert into the inner hole of the rack sleeve 4 to achieve a quick and reliable connection between the two.

[0049] The rack sleeve 4 is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt 1. The external thread of one end of the pre-embedded bolt 1 is inserted into the inner hole of the rack sleeve 4 to achieve a fixed connection. Several slots 41 are arranged at intervals on the outer wall of the rack sleeve 4 along the axial direction of the rack sleeve 4.

[0050] A locking washer 5, which is an annular structure, is fitted onto the rack sleeve 4. The locking washer 5 has a locking tongue 51 that engages with a groove 41 on the outer wall of the rack sleeve 4. After the locking washer 5 is fitted onto the rack sleeve 4, the locking tongue 51 on the locking washer 5 sequentially engages with the groove 41 on the rack sleeve 4 along the axial direction of the rack sleeve 4 until the heat insulation pad 3 is clamped between the locking washer 5 and the vehicle body sheet metal 2, thus achieving a fixed connection of the heat insulation pad 3.

[0051] The outer wall of the rack sleeve 4 is provided with a helical external thread, and two adjacent helical external threads form a groove 41. The locking washer 5 is provided with a helical internal thread, which forms a locking tongue 51. The helical external thread of the rack sleeve 4 is threadedly connected to the helical internal thread of the locking washer 5. By rotating the locking washer 5 to reciprocate on the rack sleeve 4, the specific position of the locking washer 5 on the rack sleeve 4 is adjusted, thereby adjusting the distance between the locking washer 5 and the vehicle body sheet metal 2, thus satisfying the clamping and fixing of heat insulation pads 3 of different thicknesses.

[0052] In some alternative embodiments: see Figure 3As shown, this application embodiment provides an adjustable snap-fit ​​insulation pad buckle. The rack sleeve 4 of the insulation pad buckle has multiple break-off grooves 44, which are spaced apart sequentially along the axial direction of the rack sleeve 4, with adjacent break-off grooves 44 having the same spacing. This application embodiment provides multiple break-off grooves 44 on the rack sleeve 4 of the insulation pad buckle. These break-off grooves 44 are used to cut or break off excess rack sleeve 4 along the slotted position of the break-off groove 44 according to the actual length of the rack sleeve 4 in use.

[0053] In some alternative embodiments: see Figure 4 and Figure 5 As shown, this application embodiment provides an adjustable snap-fit ​​heat insulation pad buckle, which includes: a pre-embedded bolt 1, which is fixed to the vehicle body sheet metal 2 by riveting or welding. One end of the pre-embedded bolt 1 protrudes from the vehicle body sheet metal 2 and is provided with external threads. The external threads at one end of the pre-embedded bolt 1 are used to insert into the inner hole of the rack sleeve 4 to achieve a quick and reliable connection between the two.

[0054] The rack sleeve 4 is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt 1. The external thread of one end of the pre-embedded bolt 1 is inserted into the inner hole of the rack sleeve 4 to achieve a fixed connection. Several slots 41 are arranged at intervals on the outer wall of the rack sleeve 4 along the axial direction of the rack sleeve 4.

[0055] A locking washer 5, which is an annular structure, is fitted onto the rack sleeve 4. The locking washer 5 has a locking tongue 51 that engages with a groove 41 on the outer wall of the rack sleeve 4. After the locking washer 5 is fitted onto the rack sleeve 4, the locking tongue 51 on the locking washer 5 sequentially engages with the groove 41 on the rack sleeve 4 along the axial direction of the rack sleeve 4 until the heat insulation pad 3 is clamped between the locking washer 5 and the vehicle body sheet metal 2, thus achieving a fixed connection of the heat insulation pad 3.

[0056] A through hole is provided on the locking washer 5 for inserting the rack sleeve 4, and the locking tongue 51 is located on the side wall of the through hole. The locking tongue 51 has a right-angled triangular structure, with one right-angled side of the locking tongue 51 perpendicular to the axis of the locking washer 5, and the hypotenuse of the locking tongue 51 is inclined towards the vehicle body sheet metal 2.

[0057] In this embodiment, the locking tongue 51 is configured as a right-angled triangle structure, wherein one right-angled side of the locking tongue 51 is perpendicular to the axis of the locking washer 5 and is used to engage with the inclined right-angled side of the locking tooth 43, thereby providing guidance for the movement of the locking tongue 51 of the locking washer 5 on the rack sleeve 4, thereby allowing the locking washer 5 to move in a direction close to the vehicle body sheet metal 2.

[0058] In some alternative embodiments: see Figures 4 to 6 As shown, this application embodiment provides an adjustable snap-fit ​​heat insulation pad buckle, which includes: a pre-embedded bolt 1, which is fixed to the vehicle body sheet metal 2 by riveting or welding. One end of the pre-embedded bolt 1 protrudes from the vehicle body sheet metal 2 and is provided with external threads. The external threads at one end of the pre-embedded bolt 1 are used to insert into the inner hole of the rack sleeve 4 to achieve a quick and reliable connection between the two.

[0059] The rack sleeve 4 is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt 1. The external thread of one end of the pre-embedded bolt 1 is inserted into the inner hole of the rack sleeve 4 to achieve a fixed connection. Several slots 41 are arranged at intervals on the outer wall of the rack sleeve 4 along the axial direction of the rack sleeve 4.

[0060] A locking washer 5, which is an annular structure, is fitted onto the rack sleeve 4. The locking washer 5 has a locking tongue 51 that engages with a groove 41 on the outer wall of the rack sleeve 4. After the locking washer 5 is fitted onto the rack sleeve 4, the locking tongue 51 on the locking washer 5 sequentially engages with the groove 41 on the rack sleeve 4 along the axial direction of the rack sleeve 4 until the heat insulation pad 3 is clamped between the locking washer 5 and the vehicle body sheet metal 2, thus achieving a fixed connection of the heat insulation pad 3.

[0061] A connecting part 52 is provided between the locking latch 51 and the locking washer 5. The connecting part 52 has an insertion hole (not shown in the figure) for the unlocking pin 6 to pass through. The insertion hole faces one right-angle side of the locking latch 51.

[0062] In this embodiment, the locking tongue 51 and the connecting part 52 are integrally injection molded from nylon material with the locking washer 5. The connecting part 52 is connected between the locking tongue 51 and the locking washer 5, so that the locking tongue 51 can have a certain degree of freedom of movement relative to the locking washer 5. This allows the unlocking pin 6 to be inserted into the insertion hole and push the locking tongue 51 to rotate around the connecting part 52, so that the locking tongue 51 and the slot 41 can be disengaged and unlocked. This makes it easy to remove the heat insulation pad 3 after removing the locking washer 5.

[0063] In some alternative embodiments: see Figures 8 to 11 As shown, this application embodiment provides an adjustable snap-fit ​​heat insulation pad buckle, which includes: a pre-embedded bolt 1, which is fixed to the vehicle body sheet metal 2 by riveting or welding. One end of the pre-embedded bolt 1 protrudes from the vehicle body sheet metal 2 and is provided with external threads. The external threads at one end of the pre-embedded bolt 1 are used to insert into the inner hole of the rack sleeve 4 to achieve a quick and reliable connection between the two.

[0064] The rack sleeve 4 is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt 1. The external thread of one end of the pre-embedded bolt 1 is inserted into the inner hole of the rack sleeve 4 to achieve a fixed connection. Several slots 41 are arranged at intervals on the outer wall of the rack sleeve 4 along the axial direction of the rack sleeve 4.

[0065] A locking washer 5, which is an annular structure, is fitted onto the rack sleeve 4. The locking washer 5 has a locking tongue 51 that engages with a groove 41 on the outer wall of the rack sleeve 4. After the locking washer 5 is fitted onto the rack sleeve 4, the locking tongue 51 on the locking washer 5 sequentially engages with the groove 41 on the rack sleeve 4 along the axial direction of the rack sleeve 4 until the heat insulation pad 3 is clamped between the locking washer 5 and the vehicle body sheet metal 2, thus achieving a fixed connection of the heat insulation pad 3.

[0066] The locking washer 5 has a through hole for inserting into the rack sleeve 4. The locking tongue 51 can be inserted and removed into the locking washer 5. The end of the locking tongue 51 near the rack sleeve 4 has a wedge-shaped tip 54 that is engaged with the slot 41.

[0067] In this embodiment, the locking tongue 51 and the locking washer 5 are separate structures. The locking tongue 51 is a rectangular sheet structure, and the locking washer 5 has a radially formed mounting hole 53 for inserting the locking tongue 51. The mounting hole 53 is perpendicular to and communicates with the through hole. The locking tongue 51 has a positioning hole 55, and the locking washer 5 has a positioning protrusion that matches the positioning hole 55.

[0068] When the positioning protrusion on the locking washer 5 is located within the positioning hole 55 on the locking tongue 51, the locking tongue 51 is radially positioned to prevent it from engaging with the groove 41 on the rack sleeve 4. When it is necessary to remove the locking washer 5 from the rack sleeve 4, one end of a lever is inserted into the positioning hole 55 on the locking tongue 51, and then the locking tongue 51 is moved away from the rack sleeve 4. When the positioning protrusion on the locking washer 5 disengages from the positioning hole 55 on the locking tongue 51, the wedge-shaped tip 54 on the locking tongue 51 is unlocked from the groove 41 on the rack sleeve 4.

[0069] Working principle

[0070] This application provides an adjustable snap-fit ​​heat insulation pad buckle. The adjustable snap-fit ​​heat insulation pad buckle of this application is provided with a pre-embedded bolt 1, which is fixed on the vehicle body sheet metal 2. One end of the pre-embedded bolt 1 protrudes from the vehicle body sheet metal 2 and is provided with external threads; a rack sleeve 4, which is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt 1. Several spaced slots 41 are arranged sequentially along the axial direction of the rack sleeve 4 on the outer wall of the rack sleeve 4; a locking washer 5, which is a circular structure and is sleeved on the rack sleeve 4. The locking washer 5 is provided with a locking tongue 51 that is snap-fitted with the slots 41.

[0071] Therefore, the adjustable snap-fit ​​heat insulation pad buckle of this application is interference-fitted with a rack sleeve 4 by a pre-embedded bolt 1 embedded in the vehicle body sheet metal 2. Several spaced slots 41 are arranged sequentially along the axial direction of the rack sleeve 4 on its outer wall. A locking washer 5 is fitted onto the rack sleeve 4, and the locking washer 5 is snapped into the slots 41 on the rack sleeve 4 via a locking tongue 51. When installing heat insulation pads 3 of different thicknesses, the heat insulation pad 3 is first inserted into the rack sleeve 4, and then the locking washer 5 is fitted onto the rack sleeve 4 and snapped into the slots 41 of the rack sleeve 4 using the locking tongue 51, until the heat insulation pad 3 is clamped between the locking washer 5 and the vehicle body sheet metal 2, thus meeting the installation requirements of heat insulation pads 3 of different thicknesses.

[0072] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0073] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A heat insulation pad buckle with adjustable snap-fit ​​travel, characterized in that, include: An embedded bolt (1) is fixed on the vehicle body sheet metal (2). One end of the embedded bolt (1) protrudes from the vehicle body sheet metal (2) and is provided with an external thread. The rack sleeve (4) is a hollow cylindrical structure and is interference-fitted with the pre-embedded bolt (1). Several spaced slots (41) are arranged sequentially along the axial direction of the rack sleeve (4) on the outer wall of the rack sleeve (4). Locking washer (5), the locking washer (5) is a circular structure and is sleeved on the rack sleeve (4), the locking washer (5) is provided with a locking tongue (51) that is snapped into the slot (41). The outer wall of the rack sleeve (4) is provided with a plane (42) parallel to the axis of the rack sleeve (4), and the plane (42) is provided with a plurality of locking teeth (43) arranged in sequence at intervals, and the locking groove (41) is formed between two adjacent locking teeth (43). The locking tooth (43) is a right-angled triangle structure. One right-angled side of the locking tooth (43) is perpendicular to the axis of the rack sleeve (4), and the hypotenuse of the locking tooth (43) is inclined away from the vehicle body sheet metal (2).

2. The adjustable snap-fit ​​heat insulation pad buckle as described in claim 1, characterized in that: The outer wall of the rack sleeve (4) is provided with a helical external thread, and two adjacent helical external threads form the groove (41). The locking washer (5) is provided with a helical internal thread, and the helical internal thread forms the locking tongue (51). The helical external thread of the rack sleeve (4) is threadedly connected to the helical internal thread of the locking washer (5).

3. A heat insulation pad buckle with adjustable snap-fit ​​travel as described in any one of claims 1 or 2, characterized in that: The rack sleeve (4) is provided with a plurality of breakage grooves (44), which are arranged sequentially at intervals along the axial direction of the rack sleeve (4), and the spacing between two adjacent breakage grooves (44) is the same.

4. The adjustable snap-fit ​​heat insulation pad buckle as described in claim 1, characterized in that: The locking washer (5) has a through hole for inserting into the rack sleeve (4). The locking tongue (51) is located on the side wall of the through hole. The locking tongue (51) is a right-angled triangle structure. One right-angled side of the locking tongue (51) is perpendicular to the axis of the locking washer (5). The hypotenuse of the locking tongue (51) is inclined toward the vehicle body sheet metal (2).

5. The adjustable snap-fit ​​heat insulation pad buckle as described in claim 4, characterized in that: A connecting part (52) is provided between the locking tongue (51) and the locking washer (5). An insertion hole for the unlocking pin (6) is provided on the connecting part (52), and the insertion hole faces a right-angled side of the locking tongue (51).

6. The adjustable snap-fit ​​heat insulation pad buckle as described in claim 1, characterized in that: The locking washer (5) has a through hole for inserting into the rack sleeve (4), and the locking tongue (51) can be inserted and removed into the locking washer (5). The end of the locking tongue (51) near the rack sleeve (4) has a wedge-shaped tip (54) that is engaged with the slot (41).

7. The adjustable snap-fit ​​heat insulation pad buckle as described in claim 6, characterized in that: The locking tongue (51) is a rectangular sheet structure. The locking washer (5) has a radial mounting hole (53) for inserting into the locking tongue (51). The mounting hole (53) is perpendicular to and connected to the through hole. The locking tongue (51) has a positioning hole (55) on the side away from the vehicle body sheet metal (2). The locking washer (5) has a positioning protrusion that matches the positioning hole (55).

8. The adjustable snap-fit ​​heat insulation pad buckle as described in claim 1, characterized in that: Both the rack sleeve (4) and the locking washer (5) are injection molded parts.

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