CN215922067U - Roof rail - Google Patents

Abstract

The application relates to a car roof cross bar, which belongs to the field of auto parts and comprises a main cross beam, a base, an adjusting seat and a locking assembly for connecting the base and the adjusting seat, wherein the main cross beam is provided with a first sliding groove, and the locking assembly comprises a locking piece, a locking nut and a locking bolt; the locking piece is arranged on the adjusting seat in a swinging mode and comprises a lower locking part and an upper locking part which is connected with the lower locking part and is arranged on the first sliding groove in a sliding mode; the locking piece can be turned over so that the upper locking part presses the main cross beam on the top of the base; the locking nut is rotatably arranged on the lower locking part, the rotating axis of the locking nut is parallel to the width direction of the adjusting seat, and the threaded hole of the locking nut is arranged perpendicular to the rotating axis of the locking nut; the bolt head joint of locking bolt is on the base, and the screw rod and the lock nut screw-thread fit of locking bolt. The roof rail can clamp longitudinal struts of different sizes, and can coordinate the position of the main cross beam on the roof, so that a stable cargo support can be constructed on the roof.

Description

Roof rail

Technical Field

The present application relates to the field of automotive accessories, and more particularly to a roof rail.

Background

Roof rails, also known as roof racks, are racks mounted on the longitudinal rails of the roof to facilitate carrying large items. The roof rail includes a main cross member and two clamp seats mounted on the main cross member. The clamping sockets can be clamped on longitudinal girders of the roof of the motor vehicle so that the roof rail can be fixed on the roof of the motor vehicle. In order to enable the roof cross bar to be suitable for more models of vehicles, the clamping seats of the roof cross bar are designed to clamp longitudinal girders with different sizes, and the clamping seats can be locked with the roof cross bar after the longitudinal girders are clamped by the clamping seats. In this regard, the inventors have also developed a new roof rail that can hold longitudinal spars of different sizes.

SUMMERY OF THE UTILITY MODEL

To enable the roof rail to clamp different sizes of longitudinal corbels, the present application provides a roof rail.

The application provides a roof rail adopts following technical scheme:

a car roof cross bar comprises a main cross beam, a base used for being abutted against one side of a longitudinal support rod, an adjusting seat used for being abutted against the other side of the longitudinal support rod and a locking assembly connected with the base and the adjusting seat; the main cross beam is provided with a first sliding groove which is arranged along the length direction and is provided with an opening at the lower side; the locking assembly comprises a locking piece, a locking nut and a locking bolt; the locking piece is arranged on the adjusting seat in a swinging mode and comprises a lower locking portion and an upper locking portion, wherein the lower locking portion is located in the adjusting seat, and the upper locking portion is connected with the lower locking portion and is arranged on the first sliding groove in a sliding mode; the locking piece can be turned over to enable the upper locking part to press the main cross beam to the top of the base; the locking nut is rotatably arranged on the lower locking part, the rotating axis of the locking nut is parallel to the width direction of the adjusting seat, and the threaded hole of the locking nut is arranged perpendicular to the rotating axis of the locking nut; the bolt head of the locking bolt is clamped on the base, and the screw rod of the locking bolt is in threaded fit with the locking nut.

By adopting the technical scheme, when the roof cross bar is used for clamping the longitudinal support rod of the roof, the locking bolt is rotated to drive the locking nut, the locking piece and the adjusting seat to move towards the base until the base and the adjusting seat are clamped at two sides of the longitudinal support rod; then, the locking bolt continues to be rotated, the locking bolt continues to drive the locking nut to move towards the direction of the bolt head, the locking piece is arranged on the adjusting seat in a swinging mode and abuts against one side of the longitudinal support rod and cannot continue to move, the lower locking portion of the locking piece swings towards the direction of the bolt head, and the upper locking portion deflects towards the same circumferential direction until the upper locking portion tightly presses the main cross beam to the top of the base. The roof cross bar can clamp the longitudinal struts with different sizes, and locks the main cross beam after the base and the adjusting seat are clamped on the longitudinal struts, so that the position of the main cross beam on the roof can be coordinated, and the stable cargo support is formed on the roof.

Optionally, the base has a first sliding part which is in sliding fit with the main beam in the first sliding groove; the adjusting seat is provided with a second sliding part which is in sliding fit with the main beam in the first sliding groove.

Through adopting above-mentioned technical scheme, the base can be slided and install on the main beam by first portion of sliding, and the second portion of sliding makes the adjustment seat can slide and install on the main beam for relative sliding between base and the adjustment seat can be more steady, helps base and adjustment seat can stably centre gripping in the both sides of longitudinal rod.

Optionally, the base is shell structure and offers and is used for supplying adjust the inserted socket that slides of seat, have in the base and be used for supplying adjust the support plane that the seat top surface slided the laminating.

Through adopting above-mentioned technical scheme, adjust the seat and can slide along the support plane, further improved the stationarity of relative slip between base and the adjustment seat.

Optionally, the second sliding part has an abutting side wall for the upper locking part to abut against; the adjusting seat is provided with a spring groove on the inner wall close to the bolt head, a pressure spring is arranged in the spring groove, one end of the pressure spring is abutted against the lower locking part, and the other end of the pressure spring is abutted against the bottom surface of the spring groove.

Through adopting above-mentioned technical scheme, when the retaining member orders about the direction of adjusting the seat towards the bolt head and slides, go up locking portion butt on the butt lateral wall, lower locking portion passes through pressure spring and transmits drive power to adjusting the seat for the retaining member can transmit drive power to adjusting the seat more steadily on, makes to adjust the seat and remove more steadily towards the base direction. When the locking assembly is unlocked, the locking bolt is rotated in the opposite direction, so that the locking nut moves towards the direction far away from the bolt head, and the pressure spring helps the locking piece to reset.

Optionally, the adjusting seat is provided with a limiting lug on a side facing the bolt head for abutting against the lower edge of the sliding socket.

Through adopting above-mentioned technical scheme, when the roof horizontal pole does not have the vertical branch of centre gripping, can rotate the locking bolt for spacing lug butt is at the lower edge of base at the socket that slides, avoids the roof horizontal pole as far as possible in the transportation, and regulation seat and base take place the condition in disorder.

Optionally, a clamping groove for clamping the longitudinal strut is formed on the outer side of the base, and the base is provided with an upper abutting side wall for abutting against the upper side of the longitudinal strut and a lower abutting side wall for abutting against the lower side of the longitudinal strut at the clamping groove; the adjusting seat is provided with a locking side wall for the lower side of the longitudinal strut to abut against.

Through adopting above-mentioned technical scheme, when base and regulation seat centre gripping when vertical branch, can carry out three point location to vertical branch on circumference, this kind of clamping structure is comparatively ideal to the centre gripping effect of vertical branch for the roof horizontal pole is difficult for taking off from the pine of vertical branch.

Optionally, the lower locking part includes a swing plate and two support tabs vertically disposed on the swing plate and arranged oppositely, and the two support tabs are arranged oppositely with a rotation hole for rotatably mounting the locking nut.

Through adopting above-mentioned technical scheme, lock nut rotary mounting is on two support lugs, and this kind of rotatory mounting means makes lock nut can drive power and transmit locking portion down better to order about the retaining member action.

Optionally, the base includes a plastic shell and a metal skeleton mounted in the plastic shell; the bolt head of the locking bolt is clamped on the metal framework.

Through adopting above-mentioned technical scheme, the base includes plastic housing and metal framework, helps improving the overall structure intensity of base, reduces the cracked probability of base emergence. Because the locking bolt is a metal piece, when the locking bolt rotates, the damage of the rotation of the bolt head to the base is small, and the service life of the base is prolonged.

Optionally, the metal framework is further provided with a supporting arc portion, and the supporting arc portion is supported on the inner wall of the portion, used for clamping the longitudinal supporting rod, of the plastic shell.

By adopting the technical scheme, when the base is clamped on one side of the longitudinal support rod, the longitudinal support rod is abutted to the part, used for clamping the longitudinal support rod, in the plastic shell, and the supporting arc part of the metal framework is supported on the inner side of the part, so that the extrusion force of the longitudinal support rod to the plastic shell is transmitted to the supporting arc part, the probability of the part cracking due to extrusion is reduced, and the service life of the roof cross bar is prolonged.

Optionally, the base is provided with an unlocking hole opposite to the bolt head, a locking assembly is arranged between the bolt head and the side wall provided with the unlocking hole, and the locking assembly comprises a lock cylinder arranged on the base and a locking piece arranged on an output head of the lock cylinder; when the lock cylinder is in a locking state, the locking piece is shielded between the bolt head and the unlocking hole; when the lock cylinder is in the unlocked state, the locking member is removed from between the locking hole and the bolt head.

Through adopting above-mentioned technical scheme for only after using corresponding key to switch over the lock core from the locking state to the unblock state, just can use the instrument to rotate the locking bolt, locking assembly's setting has improved the theftproof ability of roof rail, has also improved the security of roof rail.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the roof cross bar can clamp the longitudinal support rods through the matching of the base, the adjusting seat and the locking assembly so as to be suitable for being installed on the longitudinal support rods with different models and sizes, and the locking assembly is continuously adjusted to lock the main cross beam, so that the position of the main cross beam on the roof is coordinated, and a stable cargo support is constructed on the roof.

2. The base is arranged on the main cross beam in a sliding mode through the first sliding portion, the adjusting seat is arranged on the main cross beam in a sliding mode through the second sliding portion, and the adjusting seat can be inserted in a sliding inserting opening of the base in a sliding mode, so that the base and the adjusting seat can slide relatively stably;

3. the adjusting seat is provided with an abutting side wall for abutting against an upper locking part of the locking piece and a pressure spring abutting against a lower locking part, so that the driving force transmitted to the adjusting seat by the locking part to move is stable;

4. the arrangement of the locking assembly on the base helps to improve the theft protection of the roof rail and also helps to improve the safety of the roof rail.

Drawings

Fig. 1 is a schematic view of a related art roof rail mounted on an automobile.

Fig. 2 is a front view of the roof rail in the embodiment.

FIG. 3 is a schematic view of the mating of the beam body and the beam end cap in the example embodiment.

FIG. 4 is a schematic cross-sectional view of an embodiment of the clamping mechanism not mounted on the longitudinal struts.

Fig. 5 is a schematic structural view of a locker in an embodiment.

Fig. 6 is a schematic structural view of the locking assembly in the embodiment.

Fig. 7 is a schematic structural diagram of the base to show the sliding socket in the embodiment.

FIG. 8 is a schematic sectional view of the susceptor in the example.

Fig. 9 is a schematic diagram of a mechanism of the base to show its top structure in the embodiment.

FIG. 10 is a schematic structural view of an adjusting seat in the embodiment.

FIG. 11 is a schematic cross-sectional view of the mating of the adjustment block and the locking assembly of the embodiment.

FIG. 12 is a schematic sectional view of the clamping mechanism of the embodiment after the clamping step is completed.

FIG. 13 is a schematic sectional view of the clamping mechanism of the embodiment after the locking step is completed.

Fig. 14 is an enlarged schematic view at a in fig. 13.

FIG. 15 is a schematic structural view of a metal skeleton in the example.

FIG. 16 is a schematic structural view of a lock assembly in an embodiment.

Description of reference numerals: 1. a main cross beam; 11. a beam main body; 111. a first chute; 12. a beam end cover; 121. a plug-in part; 2. a base; 21. a plastic housing; 22. a metal skeleton; 221. a clamping seat; 2211. a clamping and connecting plate; 22111. clamping the through hole; 2212. a support plate; 22121. an adjustment hole; 2213. a connecting plate; 222. a first sliding section; 223. a metal inner liner plate; 2231. a support arc portion; 224. a metal support plate; 2241. a support plane; 23. unlocking the hole; 24. a gun head; 241. a sliding socket; 25. a shank portion; 26. a clamping groove; 261. upper against the side wall; 262. a lower abutment side wall; 27. installing a sleeve; 28. a first slideway; 3. an adjusting seat; 31. a second sliding section; 311. abutting the side wall; 32. installing an inner cavity; 321. a yielding side wall; 323. a second port; 324. a spring slot; 33. installing an end cover; 34. a swing hole; 35. a pressure spring; 36. locking the side wall; 37. a limiting lug; 4. a locking assembly; 41. a locking member; 411. an upper locking part; 412. a lower locking portion; 4121. a swing plate; 4122. a support tab; 4123. rotating the hole; 42. locking the nut; 421. rotating the convex column; 422. a threaded hole; 43. locking the bolt; 431. a bolt head; 432. a screw; 51. a lock cylinder; 52. a locking member; 6. a longitudinal strut; 7. a clamping mechanism.

Detailed Description

The present application is described in further detail below with reference to figures 1-16.

Referring to fig. 1, in order to increase the transportation capacity of a vehicle, longitudinal struts 6 are respectively disposed on both sides of a roof of the vehicle, and the longitudinal struts 6 are arranged along the length direction of the vehicle. The roof rail is mounted on the vehicle with the longitudinal struts 6, and the two ends of the roof rail are respectively clamped on the corresponding longitudinal struts 6. Each vehicle will typically have two roof rails mounted so that a stable support structure is formed at the roof of the vehicle. The user can fix the goods on this bearing structure, promotes the transporting ability of car. All references to the longitudinal strut 6 can refer to fig. 1, and will not be described in detail hereinafter.

The embodiment of the application discloses a car roof cross bar. Referring to fig. 2, the roof rail comprises a main cross member 1 and two sets of clamping mechanisms 7 mounted on the main cross member 1 for clamping onto corresponding longitudinal struts 6. When the roof cross bar is not locked on the longitudinal strut 6, the clamping mechanism 7 can slide along the length direction of the main cross beam 1; when the roof rail is locked to the longitudinal strut 6, the clamping mechanism 7 is locked to the main cross member 1, so that the main cross member 1 and the longitudinal strut 6 are locked relative to each other.

Referring to fig. 2 and 3, the main beam 1 includes a beam body 11 and beam covers 12 mounted at both ends of the beam body 11. The beam main body 11 is an aluminum alloy section. The bottom surface of the main beam 1 is a plane. The beam main body 11 has a first slide groove 111 arranged in the longitudinal direction, and the cross section of the first slide groove 111 is T-shaped. The first chute 111 is formed with a rectangular opening at the bottom surface of the cross beam main body 11. The beam cover 12 has a plug portion 121 fitted to a sectional hole groove of the beam body 11 so that the beam cover 12 is not easily detached from the beam body 11.

Referring to fig. 4, the clamping mechanism comprises a base 2 for abutting against one side of a longitudinal strut 6, an adjustment block 3 for abutting against the other side of the longitudinal strut 6, and a locking assembly 4 connecting the base 2 and the adjustment block 3. The locking assembly 4 is used to adjust the distance between the base 2 and the adjustment seat 3. The locking assembly 4 includes a locking member 41, a locking nut 42 and a locking bolt 43.

Referring to fig. 4 and 5, the locker 41 is a metal member. The locker 41 includes an upper locker portion 411 and a lower locker portion 412. The upper locking portion 411 is a T-shaped plate and can be slidably mounted in the first sliding groove 111. The lower lock portion 412 includes a swing plate 4121 and two support tabs 4122 provided perpendicularly on the swing plate 4121 and arranged oppositely. The two support tabs 4122 are also oppositely arranged with a rotation hole 4123 for rotatably mounting the lock nut 42. Wherein, the swinging plate 4121 is further provided with a through hole for passing the screw 432 of the locking bolt 43, and the through hole is a strip-shaped hole.

Referring to fig. 5 and 6, the lock nut 42 has an overall cylindrical shape. Both ends of the lock nut 42 are provided with rotation bosses 421 engaged with the rotation holes 4123 so that the lock nut 42 can be rotated with respect to the locker 41 after the lock nut 42 is mounted on the locker 41. The threaded hole 422 of the lock nut 42 is perpendicular to the rotational axis of the lock nut 42 on the locker 41.

Referring to fig. 5 and 6, the locking bolt 43 includes a bolt head 431 and a screw 432. The bolt head 431 is cylindrical, and a regular hexagonal slot is formed on one side facing away from the screw rod 432. The screw 432 is threadedly engaged with the lock nut 42. When the lock bolt 43 is rotated relative to the lock nut 42, the relative distance between the bolt head 431 and the lock member 41 can be adjusted.

Referring to fig. 4 and 7, the base 2 is a pistol-like housing structure as a whole. The base 2 includes a gun head 24 and a gun handle 25. The top surface of the gun head 24 is a plane and can be attached to the bottom surface of the main beam 1. The gun head 24 is provided with a slide insertion hole 241 on the lower side for the slide insertion of the adjustment base 3. The inner top surface of the gun head 24 is provided with a support plane 2241 for the sliding fit of the adjusting seat 3.

With reference to fig. 4 and 7, the pistol grip portion 25 is formed with a clamping groove 26 for clamping the longitudinal strut 6 on the side facing the adjustment cup 3. The base 2 has, at the clamping groove 26, an upper abutment side wall 261 against which the upper side of the longitudinal strut 6 abuts and a lower abutment side wall 262 against which the lower side of the longitudinal strut 6 abuts. The upper side of the longitudinal strut 6 refers to a portion of the longitudinal strut 6 in which the outer surface faces upward or obliquely upward when the automobile is running on a horizontal plane; the lower side of the longitudinal strut 6 refers to a portion of the longitudinal strut 6 whose outer surface faces downward or obliquely downward when the automobile is running on a horizontal surface.

Referring to fig. 4 and 8, the base 2 is further provided with a clamping seat 221 facing the sliding socket 241 in the inner cavity. The engagement seat 221 is for engagement by the bolt head 431 of the lock bolt 43. The clamping seat 221 is generally U-shaped and includes a clamping plate 2211 close to the sliding socket, a support plate 2212 far from the sliding socket, and a connecting plate 2213 connecting the clamping plate 2211 and the support plate 2212. The clamping plate 2211 is provided with a clamping through hole 22111 for the screw 432 to pass through and limiting the bolt head 431 to pass through. The snap-in through hole 22111 is a strip-shaped hole. An adjusting hole 22121 opposite to the clamping through hole 22111 is formed in the supporting plate 2212, so that the locking bolt 43 can be conveniently clamped on the clamping plate 2211 and the locking bolt 43 can be conveniently rotated.

Referring to fig. 4 and 9, the base 2 is further provided with a first sliding portion 222 slidably attached to the first sliding groove 111. The first sliding portion 222 has a T-shaped plate structure. When the top surface of the base 2 is attached to the bottom surface of the main beam 1, the first sliding portion 222 can smoothly slide in the first sliding groove 111 of the main beam 1.

Referring to fig. 4 and 10, the adjustment seat 3 can be slid into the base 2 through the slide insertion opening 241. The top surface of the adjusting seat 3 is attached to the supporting plane 2241. The adjusting seat 3 is further provided with a second sliding portion 31 which is slidably mounted in the first sliding groove 111 of the main beam 1. The second sliding portion 31 is T-shaped as a whole. When the top surface of the adjusting seat 3 is attached to the support plane 2241, the second sliding portion 31 can slide smoothly in the first sliding groove 111.

Referring to fig. 4 and 9, the base 2 is provided with a first slide 28 for sliding the second sliding portion 31. The second glide portion 31 is also provided with an abutment side wall 311 for the upper latch portion 411 of the latch 41 to abut against.

Referring to fig. 10 and 11, the adjustment base 3 is further provided with a mounting cavity 32 for mounting the lower locking portion 412 of the locking member 41. The mounting cavity 32 is formed with a mounting opening at the top of the adjustment seat 3. The adjusting base 3 is mounted with a mounting end cover 33 by screws, which covers the mounting opening, and when the mounting end cover 33 is mounted on the adjusting base 3, a swing hole 34 for the upper locking portion 411 to pass through is formed in the mounting opening of the adjusting base 3 on a side close to the second sliding portion 31.

Referring to fig. 11, the adjustment seat 3 is formed with a relief sidewall 321 on a side close to the catching seat 221 in the installation cavity 32. The receding side wall 321 is arranged to be inclined downward in a direction approaching the catching seat 221 so that the lower locking portion 412 has a more suitable swing space. The adjusting seat 3 further has a first through hole at the abdicating side wall 321 for the screw 432 of the locking bolt 43 to pass through. The adjusting seat 3 is also provided with a second opening 323 for the screw 432 to pass through at the side wall opposite to the receding side wall 321. The provision of the second opening 323 enables the adjustment socket 3 to be adapted to a large length of the locking bolt 43.

Referring to fig. 11, the adjustment seat 3 further has a spring groove 324 formed on the abdicating side wall 321, and a pressure spring 35 is disposed at the spring groove 324. One end of the pressure spring 35 abuts on the lower locking portion 412 of the locking member 41, and the other end abuts on the bottom surface of the spring groove 324.

Referring to fig. 4 and 11, the lower end of the adjustment seat 3 has a locking sidewall 36. The locking side walls 36 are arranged obliquely downwards in the direction of the approach of the clamping groove 26, so that the locking side walls 36 can rest against the underside of the longitudinal strut 6. The locking side wall 36 of the adjustment seat 3, the upper abutment side wall 261 of the base 2 and the lower abutment side wall 262 of the base 2 cooperate with each other so as to define the longitudinal strut 6.

When the clamping mechanism is used, the clamping mechanism mainly comprises two steps, namely a clamping step for clamping the longitudinal cross bar and a locking step for locking the main cross beam 1 and the clamping mechanism.

Referring to fig. 12, the clamping step is specifically as follows: the adjusting seat 3 is pressed on the supporting plane 2241 of the base 2, at this time, the locking bolt 43 is in a horizontal state, and the locking member 41 is in a vertical state under the support of the abutting side wall 311 and the pressure spring 35, that is, the upper locking portion 411 of the locking member 41 is attached to the abutting side wall 311; the locking bolt 43 is rotated, so that the locking nut 42 moves towards the direction of the bolt head 431, and the locking nut 42 drives the locking member 41 and the adjusting seat 3 to move towards the direction of the bolt head 431, namely the locking side wall 36 of the adjusting seat 3 moves towards the direction of the clamping groove 26 of the base 2; until the locking side walls 36 press the longitudinal strut 6 into the clamping groove 26 of the base 2, the adjusting seat 3 cannot be moved further in the direction of the bolt head 431.

Referring to fig. 13 and 14, the locking step is specifically as follows: continuing to rotate the locking bolt 43 after the clamping step so that the locking nut 42 continues to move in the direction of the bolt head 431; as the locking nut 42 is mounted on the lower locking portion 412, the locking member 41 is driven to swing about the contact line with the second sliding portion 31, so that the lower locking portion 412 overcomes the pressure spring 35 and continues to swing toward the bolt head 431, and the upper locking portion 411 swings away from the second sliding portion 31; since the upper locking portion 411 is located in the first sliding groove 111, the upper locking portion 411 abuts on the bottom surface of the main beam 1 on the first sliding groove 111 and presses the main beam 1 against the top surface of the base 2, thereby locking the main beam 1 in the clamping mechanism.

When unlocking is performed, turning the locking bolt 43 causes the locking nut 42 to move away from the bolt head 431, which helps to cause the locking member 41 to return with the aid of the compression spring 35.

Referring to fig. 8 and 15, in the present embodiment, the base 2 includes a plastic housing 21 and a metal skeleton 22 mounted on the plastic housing 21. The metal framework 22 is fastened to the plastic housing 21 by screws. The clamping seat 221 belongs to a part of the metal framework 22, so that the clamping seat 221 has ideal structural strength, and the probability of breakage of the clamping seat 221 due to extrusion of the bolt head 431 is reduced; the first sliding portion 222 is also a part of the metal framework 22.

The metal framework 22 further comprises two symmetrically arranged metal inner lining plates 223 and a metal support plate 224 connected to the top of the metal inner lining plates 223 and attached to the inner top surface of the plastic shell 21. The clamping seat 221 is connected with two metal lining plates 223; the first sliding part 222 is connected to the top of the metal support plate 224; the bottom surface of the metal supporting plate 224 is the supporting plane 2241.

Both metal inner lining plates 223 are provided with support arcs 2231. The support arc portions 2231 are supported on the inner wall of the plastic housing 21 corresponding to the holding grooves 26 so that the plastic housing 21 has a low probability of being broken when holding the longitudinal struts 6.

Referring to fig. 4, the adjustment seat 3 is provided at a side toward the grip portion 25 with a limit tab 37 for abutting with a lower edge of the plastic case 21 at the slide insertion opening 241, the limit tab 37 being arranged obliquely upward in a direction approaching the grip portion 25. When the roof rail is not clamped on the longitudinal rail of the automobile, the distance between the base 2 and the adjusting seat 3 can be reduced by rotating the locking bolt 43, so that the limiting lug 37 and the lower edge of the plastic shell 21 at the sliding socket 241 are abutted, the base 2 and the adjusting seat 3 are in a relatively locked state, and the transportation of the whole roof rail is facilitated.

Referring to fig. 12 and 16, the base 2 has an unlocking hole 23 facing the engaging seat 221 on a side facing away from the adjustment seat 3. The base 2 is provided with a locking assembly between the card socket 221 and the unlocking hole 23.

The locking assembly includes a lock cylinder 51 and a locking piece 52. The outer side of the base 2 is provided with a mounting sleeve 27 for mounting the key cylinder 51 and arranged in the width direction of the base 2, and the mounting portion has a mounting hole for mounting the key cylinder 51. The housing of the lock cylinder 51 is cylindrical and is installed in the mounting hole by interference fit. The lock member 52 is mounted on the output head of the key cylinder 51 so as to be rotatable in synchronization with the output head of the key cylinder 51.

Referring to fig. 12, when the key cylinder 51 is in the locked state, the locking piece 52 is located between the bolt head 431 and the unlocking hole 23, so that the rotation of the lock bolt 43 cannot be performed with a tool.

Referring to fig. 13, when the key cylinder 51 is in the unlocked state, the locking member 52 is rotated away from between the unlocking hole 23 and the bolt head 431, so that a tool can be used to engage with the bolt head 431 of the locking bolt 43, thereby rotating the locking bolt 43.

With reference to fig. 1 to 16, the implementation principle of the roof rail is as follows: first, the lock cylinder 51 is adjusted to an unlocked state by a corresponding key; then, the locking bolts 43 in the two clamping mechanisms 7 of the roof rail are rotated, so that the distance between the base 2 and the adjusting seat in the two clamping mechanisms 7 is proper, namely the longitudinal strut 6 can be just clamped between the base 2 and the adjusting seat; then, the longitudinal cross bar is installed on the top of the automobile, so that the longitudinal support rod 6 is clamped between the corresponding base 2 and the adjusting seat, and the locking bolt 43 in the clamping mechanism 7 is continuously rotated, so that the clamping mechanism 7 clamps the longitudinal support rod 6, and at the moment, the main cross beam 1 can slide on the clamping mechanism; after the position of the main beam 1 on the roof is adjusted, the locking bolts 43 in the clamping mechanism 7 are continuously rotated, at the moment, the locking pieces 41 swing, and the upper locking parts 411 in the locking pieces 41 press the main beam 1 on the upper surface of the base 2, so that the main beam 1 is locked; finally, the key cylinder 51 is adjusted to the locked state by the corresponding key, and at this time, the locking piece 52 mounted on the output head of the key cylinder 51 is positioned between the unlocking hole 23 and the bolt head 431.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A car roof cross bar is characterized by comprising a main cross beam (1), a base (2) used for being abutted against one side of a longitudinal support rod (6), an adjusting seat (3) used for being abutted against the other side of the longitudinal support rod (6) and a locking assembly (4) for connecting the base (2) and the adjusting seat (3); the main beam (1) is provided with a first sliding chute (111) which is arranged along the length direction and is opened at the lower side;

the locking assembly (4) comprises a locking piece (41), a locking nut (42) and a locking bolt (43);

the locking piece (41) is arranged on the adjusting seat (3) in a swinging mode, the locking piece (41) comprises a lower locking portion (412) located in the adjusting seat (3) and an upper locking portion (411) which is connected with the lower locking portion (412) and is arranged on the first sliding groove (111) in a sliding mode;

the locking piece (41) can be turned over to enable the upper locking part (411) to press the main cross beam (1) on the top of the base (2); the locking nut (42) is rotatably mounted on the lower locking part (412), the rotating axis of the locking nut (42) is parallel to the width direction of the adjusting seat (3), and the threaded hole (422) of the locking nut (42) is arranged perpendicular to the rotating axis of the locking nut (42);

the bolt head (431) of the locking bolt (43) is clamped on the base (2), and the screw rod (432) of the locking bolt (43) is in threaded fit with the locking nut (42).

2. The roof rail according to claim 1, characterized in that the base (2) has a first sliding portion (222) which is slidably fitted to the first runner (111) with the main cross member (1); the adjusting seat (3) is provided with a second sliding part (31) which is in sliding fit with the main beam (1) in the first sliding groove (111).

3. The roof rail of claim 2, characterized in that the base (2) is a shell structure and is provided with a sliding socket (241) for inserting the adjusting seat (3), and a support plane (2241) for sliding and fitting the top surface of the adjusting seat (3) is arranged in the base (2).

4. The roof rail according to claim 2, characterized in that the second glide (31) has an abutment side wall (311) for the upper latch (411) to abut against; the inner wall of the adjusting seat (3) close to the bolt head (431) is provided with a spring groove (324), a pressure spring (35) is arranged in the spring groove (324), one end of the pressure spring (35) abuts against the lower locking part (412) and the other end abuts against the bottom surface of the spring groove (324).

5. Roof rail according to claim 3, characterized in that the adjusting seat (3) is provided with a stop tab (37) on the side facing the bolt head (431) for abutment with the lower edge of the sliding socket (241).

6. The roof rail according to claim 1, characterized in that the outer side of the base (2) is formed with a clamping groove (26) for clamping the longitudinal strut (6), the base (2) having at the clamping groove (26) an upper abutment side wall (261) for abutment of the upper side of the longitudinal strut (6) and a lower abutment side wall (262) for abutment of the lower side of the longitudinal strut (6); the adjusting seat (3) is provided with a locking side wall (36) for the lower side of the longitudinal support rod (6) to abut against.

7. The roof rail of claim 1, characterized in that the lower locking part (412) comprises a swing plate (4121) and two support tabs (4122) arranged perpendicularly to the swing plate (4121) and oppositely arranged, the two support tabs (4122) being oppositely arranged with a rotation hole (4123) for the rotational mounting of the locking nut (42).

8. The roof rail of claim 1, characterized in that the base (2) comprises a plastic housing (21) and a metal skeleton (22) mounted within the plastic housing (21); the bolt head (431) of the locking bolt (43) is clamped on the metal framework (22).

9. The roof rail according to claim 8, characterized in that the metal framework (22) is further provided with support arcs (2231), the support arcs (2231) being supported on the inner wall of the portion of the plastic shell (21) that is used for clamping the longitudinal strut (6).

10. The roof rail of claim 1, characterized in that the base (2) is provided with an unlocking hole (23) opposite to the bolt head (431), the base (2) is provided with a locking assembly between the bolt head (431) and the side wall provided with the unlocking hole (23), and the locking assembly comprises a lock cylinder (51) arranged on the base (2) and a locking piece (52) arranged on an output head of the lock cylinder (51); when the lock cylinder (51) is in a locked state, the locking piece (52) is shielded between the bolt head (431) and the unlocking hole (23); when the lock cylinder (51) is in the unlocked state, the locking member (52) is removed from between the unlocking hole (23) and the bolt head (431).

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