CN210478374U

CN210478374U - Device for shading passenger car

Info

Publication number: CN210478374U
Application number: CN201921331258.4U
Authority: CN
Inventors: 王志仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-08
Anticipated expiration: 2029-08-16

Abstract

The utility model relates to an on-vehicle articles for use field, a device for passenger car sunshade, including two frames that are parallel relatively, sunshade screen drive assembly is arranged respectively at two frame fronts, rear portion, is equipped with power input device between two sets of sunshade screen drive assemblies, sunshade screen drive assembly includes slide rail, lower slide rail, structure, first tooth drive assembly, second tooth drive assembly and third tooth drive assembly, and it passes through the mutually supporting of lead screw, nut, telescopic drive shaft, bearing, multiunit slide rail for this device is through disposable drive, can realize the carriage around the flexible of four directions, can comprehensive sunshade again can the theftproof, uses convenient operation swift, and the practicality is strong, and market prospect is wide.

Description

Device for shading passenger car

Technical Field

The utility model relates to an on-vehicle articles for use field, especially an external sunshade screen that car used.

Background

The device for shading the sun of passenger vehicles (mainly SUV vehicle types and cars) in the existing market is generally limited to be arranged above front and rear windshield glass of the vehicles by virtue of suckers in the vehicles in a telescopic manner, and the sun shading device is low in price, but is limited to partially shading sunlight and limited in sun shading effect. The sun-shading device is similar to a retractable umbrella, is placed in a trunk when not in use, is taken out and placed on the roof when in use, and then is stretched and retracted by electric power and manual operation. Although the device has good sun-shading effect, the device is not windproof and does not prevent theft, and the sun-shading cloth can be turned over when wind is strong to cause damage to the vehicle. The vehicle needs to be taken down from the roof and put into the trunk before being started, which is troublesome for drivers.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a device for passenger car sunshade, it can shelter from the carriage top comprehensively.

In order to achieve the above object, the utility model adopts the following technical scheme:

a device for shading a passenger car comprises two relatively parallel frames, wherein sunshade curtain driving assemblies are respectively arranged at the front parts and the rear parts of the two frames, a power input device is arranged between the two groups of sunshade curtain driving assemblies, and each sunshade curtain driving assembly comprises an upper slide rail, a lower slide rail, a structural member, a first tooth transmission assembly, a second tooth transmission assembly and a third tooth transmission assembly;

the base of the lower sliding rail is arranged on the opposite surfaces of the two frames, the upper sliding rail is arranged on the moving part of the lower sliding rail, the first tooth transmission assembly comprises a flat shaft, a first bearing, a metal pipe, a first gear and a first rolling shaft, wherein the outer ring of the bearing is arranged on a structural part, the inner ring of the bearing is connected and sleeved on the partial section of the metal pipe, the first rolling shaft is arranged in the metal pipe, and the first gear is sleeved outside the partial section of the metal pipe; the second gear transmission assembly comprises a second gear, a first screw rod, a first nut and a second bearing, wherein the outer ring of the second bearing is arranged on the structural member, the inner ring of the second bearing is fixed on the first screw rod, the first nut and the second gear are respectively arranged on two sides of the second bearing, the second gear is fixed on the first screw rod, and the first nut is fixed on the structural member; the third gear transmission assembly comprises a third bearing, a second nut, a third gear and a second screw rod, wherein the outer ring of the third bearing is fixed on the connecting piece, the second nut is a long nut, part of the second nut is inserted and fixedly connected onto the inner ring of the third bearing, and the third gear is sleeved on the outer wall of the part of the second nut;

the structure part is provided with three through holes, the first bearing, the second bearing and the third bearing are correspondingly arranged on the through holes, the flat shaft, the first screw rod and the second screw rod penetrate through the structure part, and the power output end of the power input device is connected with the flat shaft and can drive the flat shaft to rotate; the first gear and the second gear are meshed oppositely, and the second gear and the third gear are meshed with each other; the base of the two groups of lower sliding rails is provided with a front upper sunshade curtain and a rear upper sunshade curtain, and the moving end of the two groups of lower sliding rails is provided with a front sunshade curtain and a rear sunshade curtain.

Preferably, the structural member is a horizontal rod-shaped member, the two ends of the structural member are respectively provided with a sunshade screen edge strip, the front sunshade screen is installed between the two sunshade screen edge strips, the middle of each sunshade screen edge strip is provided with a guide hole, the moving part of the upper slide rail is provided with a sunshade screen limiting rod extending inwards, the moving part of the lower slide rail is provided with a sunshade screen connecting rod extending inwards, the tail part of the sunshade screen connecting rod is inserted into the sunshade screen connecting rod, and the sunshade screen limiting rod is inserted into the guide hole.

Preferably, the tail end of the guide hole close to the structural part extends obliquely upwards, so that the edge strips of the sun-shading curtain turn downwards when extending to the tail end; the first nut is rotatably connected to the structural member.

Preferably, the power input device comprises an outer shaft tube, an inner shaft tube, a second roller and a fourth bearing, wherein an outer ring of the fourth bearing is mounted on a frame, one end of the outer shaft tube is fixed on an inner ring of the fourth bearing, the second roller is arranged at the other end of the outer shaft tube, one end of the inner shaft tube is inserted into the inner shaft tube through the second roller, a main driving bevel gear is arranged at the other end of the inner shaft tube, and a main driven bevel gear meshed with the main driving bevel gear is arranged on the flat shaft.

Preferably, the flat shaft and the outer and inner tubes are perpendicular.

Preferably, the device for shading the passenger car further comprises at least two groups of base slide rails which are parallel to each other, the two groups of base slide rails are perpendicular to the frame, the frame is arranged on the moving parts of the base slide rails, third nuts are arranged on the moving parts of the base slide rails, a third screw rod is connected between the third nuts on the moving parts of the two base slide rails, a driven straight gear is sleeved in the middle of the third screw rod, a driving straight gear is sleeved on the main body of the inner shaft tube and is meshed with the driven straight gear, and the driving straight gear can drive the third screw rod to rotate through the driven straight gear, so that the frame is driven to expand;

the structural part is a first double-end sliding rail, and the front sunshade curtain and the front upper sunshade curtain are both self-contraction sunshade curtains; and two groups of side sun-shading curtains are arranged on one moving part of the frame and the first double-end slide rail.

Preferably, the frame is disposed at an outer end of the base slide rail moving portion.

Preferably, each set of the base slide rails has two slide rails, and the slide rails in the two sets of the base slide rails are opposite one by one.

Preferably, a reinforcing connecting plate is arranged between the moving parts of the two sliding rails in each group of the base sliding rails, and the third nuts are installed on the reinforcing connecting plate.

Use the utility model discloses a beneficial effect is:

the device can be operated at one time, can realize the extension of the top of the carriage in all directions, can comprehensively shade the sun and prevent the theft, and has convenient and quick use and operation, strong practicability and wide market prospect.

Drawings

Fig. 1 is a schematic view of the storage state of the sunshade device for passenger cars.

Fig. 2 is a schematic view of the extended state of the sunshade device for passenger cars.

Fig. 3 is a schematic view of the frame structure of the sunshade device for passenger car.

Fig. 4 is an exploded view of the first gear transmission assembly of the sunshade device for passenger cars of the present invention.

Fig. 5 is an assembly schematic view of the first gear transmission assembly of the sunshade device for passenger cars of the present invention.

Fig. 6 is a schematic view of the second tooth transmission assembly of the sunshade device for passenger cars of the present invention.

Fig. 7 is a schematic view of a third gear transmission assembly of the sunshade device for passenger cars of the present invention.

Fig. 8 is the assembly schematic diagram of the first tooth transmission assembly, the second tooth transmission assembly and the third tooth transmission assembly of the device for sunshade of passenger cars.

Fig. 9 is a schematic structural view of the front sunshade frame of the sunshade device for passenger car.

Fig. 10 is a schematic structural view of the left and right widening components of the sunshade device for passenger cars of the present invention.

Fig. 11 is a schematic structural view of the power input assembly of the sunshade device for passenger cars of the present invention.

The reference numerals include:

1-a cover cap, 2-a driving mechanism, 201-a base, 202-a base sliding rail, 203-a bracket, 204-a first double-end sliding rail, 205-a frame, 206-an upper sliding rail, 207-a lower sliding rail, 208-a reinforcing connecting plate, 209-a sun-shading curtain connecting rod, 210-a sun-shading curtain limiting rod, 211-a flat shaft, 2111-a total driven bevel gear, 212-a first bearing, 213-a metal pipe, 214-a first gear, 215-a first rolling shaft, 216-a positioning hole, 217-a second gear, 218-a first screw rod, 219-a first nut, 220-a plate connecting piece, 221-a second bearing, 222-a connecting rod, 223-a third bearing, 224-a second nut, 225-a third gear, 226-a second screw rod, 227-step plate type piece, 228-sunshade curtain edge strip, 229-guide hole, 230-elbow connecting piece, 231-second double-end sliding rail, 232-driving straight gear, 233-total driving bevel gear, 234-driven straight gear, 235-third nut, 236-third screw rod, 237-outer shaft tube, 238-inner shaft tube, 239-second roller, 240-fourth bearing, 31-front sunshade curtain, 32-front upper sunshade curtain, 33-side sunshade curtain, 34-rear upper sunshade curtain and 35-rear sunshade curtain.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

As shown in fig. 1 to 11, the sunshade device for a passenger car according to the present embodiment includes two relatively parallel frames 205, wherein sunshade driving assemblies are respectively disposed at the front and the rear of the two frames 205, a power input device is disposed between the two groups of sunshade driving assemblies, and each sunshade driving assembly includes an upper slide rail 206, a lower slide rail 207, a structural member, a first tooth transmission assembly, a second tooth transmission assembly, and a third tooth transmission assembly;

the base 201 of the lower slide rail 207 is arranged on the opposite surfaces of the two frames 205, the upper slide rail 206 is arranged on the moving part of the lower slide rail 207, the first gear transmission component comprises a flat shaft 211, a first bearing 212, a metal tube 213, a first gear 214 and a first roller 215, wherein the outer ring of the bearing is arranged on a structural part, the inner ring of the bearing is connected and sleeved on the partial section of the metal tube 213, the first roller 215 is arranged in the metal tube 213, the first gear 214 is sleeved outside the partial section of the metal tube 213, and a positioning hole 216 on the first bearing 212 is butted with the positioning hole 216 on the metal tube 213 and locked by a screw top; the second gear transmission assembly comprises a second gear 217, a first screw rod 218, a first nut 219 and a second bearing 221, wherein the outer ring of the second bearing 221 is installed on the structural member, the inner ring of the second bearing 221 is fixed on the first screw rod 218, the first nut 219 and the second gear 217 are respectively arranged on two sides of the second bearing 221, the second gear 217 is fixed on the first screw rod 218, and the first nut 219 is fixed on the structural member; the third gear transmission assembly comprises a third bearing 223, a second nut 224, a third gear 225 and a second screw 226, wherein the outer ring of the third bearing 223 is fixed on the connecting piece, the second nut 224 is a long nut, part of the second nut 224 is inserted and fixedly connected to the inner ring of the third bearing 223, and the third gear 225 is sleeved on the outer wall of the part of the second nut 224;

the structural part is provided with three through holes, the first bearing 212, the second bearing 221 and the third bearing 223 are correspondingly arranged on the through holes, the flat shaft 211, the first screw rod 218 and the second screw rod 226 penetrate through the structural part, and the power output end of the power input device is connected with the flat shaft 211 and can drive the flat shaft 211 to rotate; the first gear 214 and the second gear 217 are meshed oppositely, and the second gear 217 and the third gear 225 are meshed with each other; the base 201 of the two groups of lower slide rails 207 is provided with a front upper sunshade 32 and a rear upper sunshade 34, and the moving ends of the two groups of lower slide rails 207 are provided with a front sunshade 31 and a rear sunshade 35.

The structural part is a horizontal rod-shaped part, two ends of the structural part are respectively provided with a sunshade screen edge 228, the front sunshade screen 31 is installed between the two sunshade screen edge 228, the middle part of the sunshade screen edge 228 is provided with a guide hole 229, the moving part of the upper slide rail 206 is provided with a sunshade screen limiting rod 210 extending inwards, the moving part of the lower slide rail 207 is provided with a sunshade screen connecting rod 209 extending inwards, the tail part of the sunshade screen connecting rod 209 is inserted on the sunshade screen connecting rod 209, and the sunshade screen limiting rod 210 is inserted into the guide hole 229.

The guide holes 229 extend obliquely upward near the ends of the structural members so that the shade rail 228 turns downward as it extends to the end; the first nut 219 is rotatably connected to the structure.

The power input device comprises an outer shaft tube 237, an inner shaft tube 238, a second roller 239 and a fourth bearing 240, wherein the outer ring of the fourth bearing 240 is mounted on one frame 205, one end of the outer shaft tube 237 is fixed on the inner ring of the fourth bearing 240, the second roller 239 is arranged at the other end of the outer shaft tube 237, one end of the inner shaft tube 238 is inserted into the inner shaft tube 238 through the second roller 239, the other end of the inner shaft tube 238 is provided with a main driving bevel gear 233, and the flat shaft 211 is provided with a main driven bevel gear 2111 engaged with the main driving bevel gear 233.

The flat shaft 211 is perpendicular to the outer shaft tube 237 and the inner shaft tube 238.

The sun-shading device for the passenger car further comprises at least two groups of base sliding rails 202 which are parallel to each other, the two groups of base sliding rails 202 are perpendicular to a frame 205, the frame 205 is arranged on the moving part of the base sliding rails 202, third nuts 235 are arranged on the moving part of the base sliding rails 202, a third screw 236 is connected between the third nuts 235 on the moving parts of the two base sliding rails 202, a driven spur gear 234 is sleeved in the middle of the third screw 236, a driving spur gear 232 is sleeved on the main body of an inner shaft tube 238, the driving spur gear 232 is meshed with the driven spur gear 234, and the driving spur gear 232 can drive the third screw 236 to rotate through the driven spur gear 234, so that the frame 205 is driven to expand;

the structural member is a first double-end slide rail 204, and the front sunshade curtain 31 and the front upper sunshade curtain 32 are both self-contraction sunshade curtains; and one moving part of the two groups of frames 205 and the first double-end slide rail 204 is provided with a side sunshade curtain 33.

The frame 205 is disposed at the outer end of the moving portion of the base slide 202.

Each set of base slide rails 202 has two slide rails, and the slide rails in the two sets of base slide rails 202 are opposite one to another.

A reinforcing connecting plate 208 is arranged between the moving parts of two slide rails in each set of base slide rails 202, and a third nut 235 is installed on the reinforcing connecting plate 208.

The following details the use and principle of the device.

As shown in fig. 1, the device is attachable to a roof rack, and in a stored state of the device, as shown in fig. 1, and in an extended state of the device, as shown in fig. 2, the front and

rear sun shades

31 and 35 respectively shade front and rear windshields of a passenger car, and the front upper sun shade 32, the side shade 33, and the rear upper sun shade 34 are unfolded to shade the roof of the passenger car.

As shown in fig. 3, in the embodiment, a base 201 is disposed at the bottom of the driving mechanism 2, and four base slide rails 202 are disposed on the base 201, it can be understood that when the base slide rails 202 are retracted, outer sections of the base slide rails are flush with or close to edges of the base 201, when a moving portion of the base slide rails 202 is moved out, the moving portion of the base slide rails 202 can extend out of the range of the base 201, two frames 205 are disposed on the base slide rails 202, and the frames 205 are disposed in the direction of the front and rear of the passenger vehicle. Fig. 3 shows a state in which the frame structure of a group of sunshade driving assemblies is mounted on the frame 205, wherein the base 201 of the lower slide rail 207 is disposed on the opposite surfaces of the two frames 205, and the upper slide rail 206 is disposed on the moving portion of the lower slide rail 207. The outer end of the moving part of the lower slide rail 207 is provided with a sunshade curtain connecting rod 209, and the outer end of the moving part of the upper slide rail 206 is provided with a sunshade curtain limiting rod 210. A bracket 203 is arranged between the two frames 205, a first double-end slide rail 204 is arranged on the bracket 203, and the outer ends of the two moving parts of the first double-end slide rail 204 are respectively connected to the positions of the moving parts of the two upper slide rails 206 close to the inner ends. In this embodiment, the other set of sunshade driving components and the sunshade driving components as above can be arranged symmetrically, and the symmetry center is on the vertical plane at the center of the two brackets 203.

The structure shown in fig. 8 is an assembly schematic diagram of the first tooth transmission component, the second tooth transmission component and the third tooth transmission component of the device. The structures of the first tooth transmission assembly, the second tooth transmission assembly and the third tooth transmission assembly are shown in figures 4-7.

The connecting means of the front curtain 31 and the connecting means of the rear curtain 35 are shown in fig. 9. Fig. 10 is a schematic diagram of the lateral deployment mechanism of the present device. Fig. 11 is a schematic structural view of a power input assembly.

The operation of the apparatus will be described in detail below.

As shown in fig. 10 and 11, when the external handle is sleeved at the outer end of the inner and outer axle tubes 237, and the outer axle tube 237 rotates in the bezel 205 under the support of the fourth bearing 240 when the outer axle tube 237 rotates, the outer axle tube 237 is a square tube, the inner axle tube 238 is a square tube, and the inner axle tube 238 can move axially at the hollow position inside the outer axle tube 237 through the action of the second roller 239. The section of inner shaft tube 238 remote from outer shaft tube 237 is bearing mounted to base 201, i.e. outer shaft tube 237 and inner shaft tube 238 are free to rotate. During rotation, the driving spur gear 232 and the driven spur gear 234 are engaged with each other, and the main driving bevel gear 233 and the main driven bevel gear 2111 are engaged with each other, forming two sets of actions.

The driving spur gear 232 and the driven spur gear 234 are meshed with each other, so that the third lead screw 236 rotates relatively, the middle section of the third lead screw 236 is mounted on the base 201 through a bearing, the two ends of the third lead screw are respectively provided with a third nut 235, the third nuts 235 can be understood as positive and negative nuts, namely, when the third lead screw 236 rotates, the third nuts 235 can move oppositely or move reversely at the same time, when the third nuts 235 move relatively, the reinforcing connecting plate 208 drives the base slide rail 202 and the frame 205 on the moving part of the base slide rail 202 to move synchronously towards the lateral direction of the passenger car, namely, the side sunshade curtain 33 is unfolded or retracted.

The main driving bevel gear 233 and the main driven bevel gear 2111 are engaged with each other to transmit the rotation of the inner shaft tube 238 to the flat shaft 211, as shown in fig. 8, when the flat shaft 211 rotates, the flat shaft 211 can relatively rotate on the bracket 203 and can integrally move the first bearing 212, the metal tube 213, the first gear 214 and the first roller 215 on the flat shaft 211 through the structure shown in fig. 4 and 5. As shown in fig. 8, when the flat shaft 211 rotates, it can drive the first gear 214 to rotate, the first gear 214 drives the second gear 217 to rotate, the second gear 217 drives the third gear 225 to rotate, and when the third gear 225 rotates, the second nut 224 drives the third bearing 223 to move along the axial direction of the second lead screw 226 through the cooperation of the second lead screw 226 and the second nut 224, that is, the second nut 224 drives the bracket 203 and the first two-end slide rail 204 to move along the axial direction of the second lead screw 226. Meanwhile, the third gear 225 is matched with the second gear 217, and the second gear 217 is fixedly sleeved on the first screw rod 218, so that the first screw rod 218 can be driven to rotate, and the first screw rod 218 can drive the first nut 219 to move back and forth through rotation.

Generally speaking, in the extension of the present device, the outer flat shaft 211 is driven to rotate, and the base sliding rail 202 and the frame 205 are driven to integrally move outwards through the cooperation of the driving spur gear 232 and the driven spur gear 234 and the cooperation of the third lead screw 236 and the third nut 235. Meanwhile, the first gear transmission assembly, the second gear transmission assembly and the third gear transmission assembly are matched to drive the bracket 203, the first double-end slide rail 204 and the first nut 219 to move outwards. Referring to fig. 9, in the present embodiment, the second nut 224 is connected to the plate-type connecting member 220 via the connecting rod 222, and the two can rotate relatively. The plate-type connecting member 220 is connected to the step plate-type member 227, and when the bracket 203, the first double-end slide rail 204 and the first nut 219 move outwards, the step plate-type member 227 moves outwards relative to the bracket 203, and the relative movement is carried out by matching the upper slide rail 206 with the lower slide rail 207. Because the frame 205 moves outwards from left to right, the first two-end slide rail 204 on the bracket 203 plays a role of moving support.

Referring to fig. 3 and 9, the sunshade curtain connecting rod 209 is inserted into a hole transversely opened by the elbow connecting member 230, the second two-end slide rail 231 comprises a slide rail base 201 and a moving part, the step plate member 227 is installed at the middle part of the second two-end slide rail 231 base 201, the elbow connecting member 230 is connected to the outer end of the moving part of the second two-end slide rail 231, and the sunshade curtain edge 228 is connected to the elbow connecting member 230, so that the sunshade curtain edge 228 and the moving part of the second two-end slide rail 231 are perpendicular to each other. The sunshade curtain gag lever post 210 cartridge is in guide hole 229, when this device outwards expanded, the removal portion of going up slide rail 206 and the removal portion relative movement of going up slide rail 206 for sunshade curtain connecting rod 209 and sunshade curtain gag lever post 210 relative movement, sunshade curtain gag lever post 210 moves to the rear end by the front end in guide hole 229 gradually, up to moving to the upwarping department of guide hole 229 afterbody, sunshade curtain strake 228 is corresponding the upset downwards this moment, drive elbow connecting piece 230, second both ends slide rail 231, step plate formula spare 227 overturn downwards simultaneously, realize that plate connector 220 passes through connecting rod 222 and rotates relatively first nut 219 promptly.

The principle of the device and the working process when the device is unfolded outwards are the same, the working state of inward recovery is the same as the working principle when the device is unfolded outwards, and the working process is opposite and is not repeated.

A cover cap 1 may be disposed on the top of the driving mechanism 2, and the cover cap 1 may be supported on the base 201 through a support rod to protect the driving mechanism 2 from being stolen.

This device can hand crank and multiple mode drive such as motor, also can adopt the mode drive of hand crank and the mutual fast switch-over of motor drive, conveniently uses under the multiple condition when passenger car outage and car machine circular telegram.

The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A device for passenger car sunshade which characterized in that: the sunshade curtain driving assembly comprises an upper slide rail, a lower slide rail, a structural part, a first tooth transmission assembly, a second tooth transmission assembly and a third tooth transmission assembly;

2. The device for passenger car sunshade as in claim 1, wherein: the structure is horizontal shaft-like spare, the both ends of structure are equipped with the sunshade screen strake respectively, preceding sunshade screen is installed between two sunshade screen strakes, the middle part of sunshade screen strake is equipped with the guiding hole, upward be equipped with the sunshade screen gag lever post of inside extension in the moving part of slide rail, be equipped with the sunshade screen connecting rod of inside extension in the lower slide rail moving part, the afterbody cartridge of sunshade screen connecting rod is on the sunshade screen connecting rod, the sunshade screen gag lever post inserts in the guiding hole.

3. Device for passenger car sunshade according to claim 2, characterized in that: the tail end of the guide hole close to the structural part extends obliquely upwards, so that the edge strips of the sun-shading curtain are turned downwards when extending to the tail end; the first nut is rotatably connected to the structural member.

4. The device for passenger car sunshade as in claim 1, wherein: the power input device comprises an outer shaft tube, an inner shaft tube, a second roller and a fourth bearing, wherein an outer ring of the fourth bearing is installed on a frame, one end of the outer shaft tube is fixed on an inner ring of the fourth bearing, the second roller is arranged at the other end of the outer shaft tube, one end of the inner shaft tube is inserted into the inner shaft tube through the second roller, a main driving bevel gear is arranged at the other end of the inner shaft tube, and a main driven bevel gear meshed with the main driving bevel gear is arranged on the flat shaft.

5. Device for passenger car sunshade according to claim 4, characterized in that: the flat shaft is perpendicular to the outer shaft tube and the inner shaft tube.

6. Device for passenger car sunshade according to claim 4, characterized in that: the sunshade device for the passenger car further comprises at least two groups of base slide rails which are parallel to each other, the two groups of base slide rails are perpendicular to the frame, the frame is arranged on the moving parts of the base slide rails, third nuts are mounted on the moving parts of the base slide rails, a third screw rod is connected between the third nuts on the moving parts of the two base slide rails, a driven straight gear is sleeved in the middle of the third screw rod, a driving straight gear is sleeved on the main body of the inner shaft tube, the driving straight gear is meshed with the driven straight gear, and the driving straight gear can drive the third screw rod to rotate through the driven straight gear, so that the frame is driven to expand;

7. The device for passenger car sunshade as in claim 6, wherein: the frame sets up the outer end at base slide rail removal portion.

8. The device for passenger car sunshade as in claim 6, wherein: every group the base slide rail has two slide rails, and two sets of slide rail in the base slide rail is relative one by one.

9. The device for passenger car sunshade as in claim 8, wherein: and a reinforced connecting plate is arranged between the moving parts of the two sliding rails in each group of base sliding rails, and a third nut is arranged on the reinforced connecting plate.