Roof crossbar

Abstract

The utility model provides a roof cross bar, and relates to the technical field of automobile accessories. The roof rail comprises a rail body and a sliding seat. The cross rod body extends in the horizontal direction, and a first sliding groove is formed in the bottom of the cross rod body, extends in the same direction as the cross rod body and penetrates through the two ends of the cross rod body in the extending direction. The sliding seat comprises a first sliding block, a seat body, a first screw rod, a first clamping block and a second clamping block, the first sliding block is arranged at the top of the seat body and can be in sliding connection with the cross rod main body through the first sliding groove, the first screw rod is arranged in the seat body and extends in the same direction as the cross rod main body, and the first screw rod can rotate around the axis relative to the seat body; the first clamping block comprises a connecting block and a clamping block, the connecting block and the second clamping block sequentially penetrate through the first screw rod, the second clamping block is in threaded connection with the first screw rod, a first connecting part is arranged at the bottom of the connecting block, and a second connecting part matched with the first connecting part is arranged at the top of the clamping block; the connecting block and the clamping block are detachably assembled through the first connecting part and the second connecting part.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a roof crossbar. Background Technology

[0002] Roof crossbars are important components in the automotive industry, and are generally used as luggage racks or armrest beams.

[0003] The crossbar fittings commonly found on the market today typically use sheet metal structures, forming crossbars and clamping structures through multi-layered inner and outer sheet metal interlocking in the horizontal or vertical direction.

[0004] However, due to limitations in their manufacturing process and structure, the common crossbar structures on the market do not have an adjustable linkage mechanism between their clamping structures, making it difficult to adapt to various types of longitudinal rails. Ultimately, this results in a single function that cannot meet the usage needs of various types of vehicles.

[0005] Therefore, how to make the clamping structure on the roof crossbar meet the clamping needs of various roof longitudinal rails is a technical problem that urgently needs to be solved. Utility Model Content

[0006] The purpose of this utility model is to provide a roof crossbar to at least solve the technical problems existing in the above-mentioned existing products.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a roof crossbar, which includes a crossbar body and a sliding seat. The crossbar body extends horizontally, and a first groove is formed at the bottom of the crossbar body. The first groove extends in the same direction as the crossbar body and passes through both ends of the crossbar body in the direction of extension. The sliding seat includes a first slider, a seat body, a first screw, a first clamping block, and a second clamping block. The first slider is disposed on the top of the seat body and can be slidably connected to the crossbar body through the first groove. The first screw is disposed inside the seat body and extends in the same direction as the crossbar body. The first screw can rotate relative to the seat body around its axis. The first clamping block includes a connecting block and a clamping block. The connecting block and the second clamping block are sequentially inserted through the first screw, and the second clamping block is screwed to the first screw. The bottom of the connecting block is provided with a first connecting part, and the top of the clamping block has a second connecting part that matches the first connecting part. The connecting block and the clamping block are detachably assembled through the first connecting part and the second connecting part. When the first screw rotates, the interval between the first clamping block and the second clamping block is adjustable.

[0009] Furthermore, in some embodiments of the aforementioned roof crossbar, the sliding seat further includes a first spring, a second spring, and an annular buckle; a first through hole is provided on the connecting block, and a limiting structure is provided inside the seat body, with a second through hole provided on the limiting structure; a first screw is sequentially passed through the first through hole and the second through hole and then screwed onto the second clamping block; the two ends of the second through hole extending in the direction of extension have a first end face and a second end face, respectively; a first spring is passed through the first screw, and its two ends abut against the connecting block and the first end face, respectively; a second spring is passed through the first screw, and its two ends abut against the second end face and the second clamping block, respectively; the annular buckle is fastened to the end of the first screw.

[0010] Furthermore, in some embodiments of the aforementioned roof crossbar, the sliding seat also includes a locking part, which includes a first end cover and a lock cylinder disposed on the first end cover. The first end cover is detachably connected to the side of the seat body corresponding to the first clamping block, so that the first end cover covers the first through hole. The seat body has a locking structure adapted to the lock cylinder at the position corresponding to the lock cylinder.

[0011] Furthermore, in some embodiments of the aforementioned roof crossbar, the roof crossbar also includes a second screw and a mounting strip; the mounting strip is embedded in the first sliding groove by an interference fit, the first sliding block has a third through hole, and the second screw passes through the third through hole and is screwed to the mounting strip.

[0012] Furthermore, in some embodiments of the aforementioned roof crossbar, the roof crossbar also includes a second slider; the second slider has a fourth through hole, and the second screw passes through the second slider and the first slider in sequence and is screwed to the mounting strip; the side of the second slider near the first slider has a first inclined surface, and the first slider has a second inclined surface that matches the first inclined surface; wherein, when the second screw is tightened, the first inclined surface abuts against the second inclined surface.

[0013] Furthermore, in some embodiments of the aforementioned roof crossbar, the roof crossbar also includes a filler strip; a second groove is provided on the top of the crossbar body, and the filler strip is embedded in the second groove by an interference fit, and the top of the filler strip has a strip-shaped gap extending in the same direction as the crossbar body.

[0014] Furthermore, in some embodiments of the aforementioned roof crossbar, the roof crossbar also includes a limiting end cap and a second end cap; the limiting end cap is fastened to the end of the crossbar body to close the end of the first sliding groove, the limiting end cap is provided with an adjustment hole and a shaft hole, the adjustment hole corresponds to the position of the second screw, and a pin is provided on the second end cap corresponding to the shaft hole, the second end cap is rotatably connected to the shaft hole through the pin.

[0015] Analysis reveals that this utility model discloses a roof crossbar. Compared with existing similar products on the market, this roof crossbar has three adjustment methods to adapt to the clamping needs of roof rails of various sizes. When the user needs to adjust the distance between the first and second clamping blocks in the sliding seat, the first screw can be rotated. Under the elastic force of the first and second springs, the first and second clamping blocks can be moved closer or further apart synchronously, thereby adjusting the distance between them. When the user needs to adjust the position of the sliding seat on the crossbar body, the second screw can be rotated. Under the action of gravity, the first inclined surface on the second slider can be disengaged from the second inclined surface on the first slider. At this time, the second slider can be slid to change the position of the sliding seat on the crossbar body. After the sliding seat is slid to the target position, the second screw is rotated and locked, so that the first inclined surface on the second slider and the second inclined surface on the first slider fit together, abut against each other, and finally form an interaction force. This causes the first and second sliders to press against the groove wall of the first groove on the crossbar body, thereby achieving the final fixing effect. When users need to clamp roof rails with different cross-sectional shapes, they can remove the clamping block from the connecting block in the first clamping block and replace it with a clamping block of the corresponding shape according to the cross-sectional shape of the roof rail to be clamped, thereby meeting the clamping needs of roof rails with different cross-sectional shapes. The sliding seat in the roof crossbar is equipped with a corresponding locking part, which covers and protects the first screw to prevent unauthorized personnel from adjusting or stealing the sliding seat. The second slide groove at the top of the crossbar body in the roof crossbar is filled with a filler strip made by extrusion process. The top of the filler strip has a strip-shaped gap. When users need to install the crossbar body through the T-screw, they can use a utility knife or other thin-bladed installation tool to scrape open the strip-shaped gap, and then slide the corresponding T-screw along the second slide rail and the strip-shaped gap. There is no need to cut and refill the filler strip, which can effectively improve the work efficiency of the installer. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0017] Figure 1 A schematic diagram of the structure of the roof crossbar proposed in an embodiment of this utility model;

[0018] Figure 2 This is a partial structural diagram of the roof crossbar proposed in an embodiment of the present invention;

[0019] Figure 3 A partial cross-sectional structural diagram of the roof crossbar proposed for an embodiment of this utility model;

[0020] Figure 4 An exploded view of a portion of the roof crossbar as proposed in an embodiment of this utility model;

[0021] Figure 5 A schematic diagram illustrating the working state of the second end cap in the roof crossbar according to an embodiment of this utility model;

[0022] Figure 6 This is a comparative structural diagram showing the roof crossbar before and after the replacement of the clamping block, as proposed in an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Main body of the crossbar; 101. First slide groove; 102. Second slide groove;

[0025] 2. Sliding seat; 201. First slider; 201a. Third through hole; 202. Seat body; 203. First screw; 204. First clamping block; 204a. Connecting block; 204b. Clamping block; 204c. First connecting part; 204d. Second connecting part; 204e. First through hole; 205. Second clamping block; 206. Limiting structure; 206a. Second through hole; 207. Locking part; 207a. First end cap; 207b. Lock cylinder; 208. Locking structure;

[0026] 3. First spring; 4. Second spring; 5. Ring-shaped buckle; 6. Second screw; 7. Mounting strip;

[0027] 8. Second slider; 801. Fourth through hole;

[0028] 9. Filler strip; 901. Strip-shaped gap;

[0029] 10. Limiting end cap; 1001. Adjustment hole; 1002. Shaft hole;

[0030] 11. Second end cap; 1101. Pin;

[0031] 12. T-shaped screw; 13. First roof longitudinal rail; 14. Second roof longitudinal rail. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0033] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0034] The accompanying drawings illustrate one or more examples of the present invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the present invention. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components. Example

[0035] like Figures 1 to 6 As shown, an embodiment of the present invention provides a roof crossbar, which includes a crossbar body 1 and a sliding seat 2.

[0036] Preferably, such as Figures 1 to 3 As shown, the crossbar body 1 is integrally formed using an aluminum alloy extrusion process. This process effectively ensures the structural strength of the crossbar body 1 while minimizing production costs. The bottom and top of the crossbar body 1 manufactured using this process have a first groove 101 and a second groove 102, respectively. The first groove 101 is filled with an extruded mounting strip 7, and the second groove 102 is filled with an extruded filler strip 9. The mounting strip 7 and the filler strip 9 are fixed by elastically deforming and pressing the groove walls of their respective grooves.

[0037] Preferably, such as Figure 5 As shown, the top of the filler strip 9 has a strip-shaped slot 901 extending in the same direction as the crossbar body 1. When the user needs to install the crossbar body 1 through the T-screw 12, he / she can use a utility knife or other thin-bladed installation tool to scrape open the strip-shaped slot 901, and then slide the corresponding T-screw 12 along the second slide rail and the strip-shaped slot 901. There is no need to cut and refill the filler strip 9, which can effectively improve the work efficiency of the installer.

[0038] Preferably, such as Figures 1 to 6 As shown, a first slider 201 is provided on the top of the sliding seat 2, and a third through hole 201a is provided on the first slider 201. A second slider 8 and the first slider 201 are slidably connected in sequence in the first sliding groove 101 of the crossbar body 1. A fourth through hole 801 is provided on the second slider 8. The screw part of the second screw 6 passes through the fourth through hole 801 and the third through hole 201a in sequence and is threadedly connected to the threaded hole at the end of the mounting strip 7.

[0039] Preferably, such as Figure 3 As shown, the second slider 8 has a first inclined surface at a 40° angle on the side near the first slider 201, and the first slider 201 has a second inclined surface matching the first inclined surface on the side near the second slider 8. When the second screw 6 is not in the locked state, there is no relative compression between the first and second inclined surfaces under the action of gravity. At this time, the user can adjust the relative position of the sliding seat 2 on the crossbar body 1 by sliding. When the user slides the sliding seat 2 to the target position, by locking the second screw 6, the first inclined surface on the second slider 8 and the second inclined surface on the first slider 201 are brought into contact and abut against each other, ultimately forming a mutual squeezing force. Under the squeezing force, the second slider 8 and the first slider 201 respectively squeeze the groove wall of the first slide groove 101, thus fixing the sliding seat 2.

[0040] Preferably, such as Figure 5 As shown, a limiting end cap 10 is installed at the end of the crossbar body 1. The limiting end cap 10 has an adjustment hole 1001 and a shaft hole 1002. The adjustment hole 1001 corresponds to the nut part of the second screw 6. After the limiting end cap 10 is installed, the limiting end cap 10 can shield and protect the first slide groove 101 and the second slide groove 102 to prevent the sliding seat 2 or the T-shaped screw 12 from falling out of the groove. The second screw 6 can be adjusted through the adjustment hole 1001.

[0041] Preferably, such as Figure 5As shown, a second end cover 11 is provided on the side of the limiting end cover 10 away from the crossbar body 1. The second end cover 11 is rotatably connected to the shaft hole 1002 on the limiting end cover 10 via a pin 1101, so that the second end cover 11 can rotate relative to the limiting end cover 10 via the pin 1101. The second end cover 11 can cover the adjustment hole 1001 on the limiting end cover 10, thereby protecting the adjustment hole 1001 and the second screw 6 and preventing non-operators from adjusting the second screw 6.

[0042] Preferably, such as Figure 3 As shown, the sliding seat 2 has a limiting structure 206 inside the seat body 202. The limiting structure 206 has a second through hole 206a. The two ends of the second through hole 206a are respectively connected to a first clamping block 204 and a second clamping block 205 through a first screw 203.

[0043] Specifically, such as Figure 3 As shown, the first clamping block 204 has a first through hole 204e, and the second clamping block 205 has a threaded through hole. The screw portion of the first screw 203 passes through the first through hole 204e, the first spring 3, the second through hole 206a, and the second spring 4 in sequence, and is then threadedly connected to the threaded through hole on the second clamping block 205. The end of the screw portion of the first screw 203 is fastened with a ring-shaped buckle 5 to prevent the second clamping block 205 from falling off. The two ends of the first spring 3 abut against the end faces of the first clamping block 204 and the limiting structure 206 near the first clamping block 204, respectively. The two ends of the second spring 4 abut against the end faces of the second clamping block 205 and the limiting structure 206 near the second clamping block 205, respectively. When the user rotates the first screw 203, under the elastic force of the first spring 3 and the second spring 4, the first clamp 204 and the second clamp 205 can move closer or further apart synchronously, thereby satisfying the user's need to adjust the distance between the first clamp 204 and the second clamp 205.

[0044] Preferably, such as Figure 4As shown, a locking part 207 is provided on the side of the sliding seat 202 near the first clamping block 204. The locking part 207 includes a first end cover 207a and a lock cylinder 207b provided on the first end cover 207a. A locking structure 208 is provided on the side of the sliding seat 2 corresponding to the position of the lock cylinder 207b. The first end cover 207a is detachably snapped into the side of the seat 202 so that the first end cover 207a can cover and protect the nut part of the first screw 203. The lock cylinder 207b is adapted to the locking structure 208. The user can lock or unlock the lock cylinder 207b with a matching key. When the lock cylinder 207b and the locking structure 208 are locked together, the first end cover 207a cannot be disengaged from the seat 202. Thus, the locking part 207 can cover and protect the first screw 203 to prevent unauthorized personnel from adjusting or stealing the sliding seat 2. When the lock cylinder 207b is unlocked from the locking structure 208, the user can remove the first end cover 207a and adjust the distance between the first clamping block 204 and the second clamping block 205 by rotating the first screw 203.

[0045] Preferably, such as Figure 6 As shown, in the sliding seat 2 of the roof crossbar, the first clamping block 204 adopts a split and detachable structure. The first clamping block 204 consists of two parts: a connecting block 204a and a clamping block 204b. The bottom of the connecting block 204a is designed with a first connecting part 204c in the shape of a slot or groove. The top of the clamping block 204b is provided with a second connecting part 204d that matches the first connecting part 204c. The clamping block 204b is made of aluminum alloy extrusion process. Different length models of clamping blocks 204b can be designed for roof longitudinal rails with different cross-sectional shapes and sizes. The connecting block 204a and the clamping block 204b are continuously connected through the first connecting part 204c and the second connecting part 204d. Taking the first roof rail 13 and the second roof rail 14 in the figure as examples, when the user needs to change the requirement of clamping the first roof rail 13 to clamping the second roof rail 14, the clamping block 204b in the first clamping block 204 can be removed from the connecting block 204a, and a clamping block 204b with a corresponding shape can be selected to replace it according to the cross-sectional shape of the roof rail to be clamped, thereby realizing the clamping requirements of roof rails with different cross-sectional shapes.

[0046] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0047] Compared with the prior art, the roof crossbar proposed in this embodiment of the utility model has three adjustment methods to adapt to the clamping needs of roof longitudinal rails of various sizes. When the user needs to adjust the gap between the first clamping block 204 and the second clamping block 205 in the sliding seat 2, the first screw 203 can be rotated. Under the elastic force of the first spring 3 and the second spring 4, the first clamping block 204 and the second clamping block 205 can be moved closer or further apart, thereby adjusting the gap between the first clamping block 204 and the second clamping block 205. When the user needs to adjust the position of the sliding seat 2 on the crossbar body 1, the second screw 6 can be rotated. Under the action of gravity, the first inclined surface on the second slider 8 can be disengaged from the second inclined surface on the first slider 201. At this time, the second slider 8 can be slid to change the position of the sliding seat 2 on the crossbar body 1. After the sliding seat 2 is slid to the target position, the second screw 6 is rotated and locked, so that the first inclined surface on the second slider 8 and the second inclined surface on the first slider 201 fit together, abut against each other, and finally form an interaction force. This causes the first slider 201 and the second slider 8 to press against the groove wall of the first groove 101 on the crossbar body 1, thereby achieving the final fixing effect. When the user needs to clamp roof rails with other cross-sectional shapes, the clamping block 204b in the first clamping block 204 can be removed from the connecting block 204a, and a clamping block 204b with a corresponding shape can be selected and replaced according to the cross-sectional shape of the roof rail to be clamped, thereby meeting the clamping requirements of roof rails with different cross-sectional shapes. The sliding seat 2 in the roof crossbar is equipped with a corresponding locking part 207, which covers and protects the first screw 203 to prevent unauthorized personnel from adjusting or stealing the sliding seat 2. The second groove 102 at the top of the crossbar body 1 in the roof crossbar is filled with a filler strip 9 made by extrusion process. The top of the filler strip 9 has a strip-shaped slit 901. When the user needs to install the crossbar body 1 through the T-screw 12, he can use a utility knife or other thin-bladed installation tool to scrape open the strip-shaped slit 901, and then slide the corresponding T-screw 12 along the second groove 102 and the strip-shaped slit 901. There is no need to cut and refill the filler strip 9, which can effectively improve the work efficiency of the installer.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roof crossbar, characterized in that, include: The crossbar body extends horizontally, and a first sliding groove is provided at the bottom of the crossbar body. The first sliding groove extends in the same direction as the crossbar body and passes through both ends of the crossbar body in the extension direction. A sliding seat includes a first slider, a seat body, a first screw, a first clamping block, and a second clamping block. The first slider is disposed on the top of the seat body and can be slidably connected to the crossbar body through a first sliding groove. The first screw is disposed inside the seat body and extends in the same direction as the crossbar body. The first screw can rotate relative to the seat body about its axis. The first clamping block includes a connecting block and a clamping block. The connecting block and the second clamping block are sequentially inserted through the first screw, and the second clamping block is screwed to the first screw. The bottom of the connecting block is provided with a first connecting portion, and the top of the clamping block has a second connecting portion that matches the first connecting portion. The connecting block and the clamping block are detachably assembled through the first connecting portion and the second connecting portion. When the first screw rotates, the distance between the first clamping block and the second clamping block is adjustable.

2. The roof crossbar according to claim 1, characterized in that, The sliding seat also includes a first spring, a second spring, and an annular buckle; The connecting block has a first through hole, the seat has a limiting structure inside, the limiting structure has a second through hole, the first screw passes through the first through hole and the second through hole in sequence and is screwed to the second clamping block, and the two ends of the second through hole in the extension direction have a first end face and a second end face respectively. The first spring passes through the first screw, and its two ends abut against the connecting block and the first end face, respectively; The second spring passes through the first screw, and its two ends abut against the second end face and the second clamping block, respectively; The annular buckle is engaged with the end of the first screw.

3. The roof crossbar according to claim 2, characterized in that, The sliding seat also includes a locking part, which includes a first end cover and a lock cylinder disposed on the first end cover. The first end cover is detachably connected to the side of the seat body corresponding to the first clamping block, so that the first end cover covers the first through hole. The seat body has a locking structure adapted to the lock cylinder at the position corresponding to the lock cylinder.

4. The roof crossbar according to claim 2, characterized in that, It also includes a second screw and a mounting strip; The mounting strip is embedded in the first groove by an interference fit. The first slider has a third through hole, and the second screw passes through the third through hole and is screwed to the mounting strip.

5. The roof crossbar according to claim 4, characterized in that, It also includes a second slider; The second slider has a fourth through hole. The second screw passes through the second slider and the first slider in sequence and is screwed to the mounting strip. The second slider has a first inclined surface on the side close to the first slider. The first slider has a second inclined surface that matches the first inclined surface. When the second screw is locked, the first inclined surface abuts against the second inclined surface.

6. The roof crossbar according to claim 5, characterized in that, It also includes filler bars; The top of the crossbar body is provided with a second sliding groove, and the filler strip is embedded in the second sliding groove by interference fit. The top of the filler strip has a strip-shaped gap extending in the same direction as the crossbar body.

7. The roof crossbar according to claim 6, characterized in that, It also includes a limiting end cap and a second end cap; The limiting end cap is fastened to the end of the crossbar body to close the end of the first slide groove. The limiting end cap is provided with an adjustment hole and a shaft hole. The adjustment hole corresponds to the position of the second screw. A pin is provided on the second end cap corresponding to the shaft hole. The second end cap is rotatably connected to the shaft hole through the pin.

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