阅读说明：本技术 一种车用手机连接器 (Mobile phone connector for vehicle ) 是由 苏颖钦 欧胜宇 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种车用手机连接器,包括用于夹持手机的支撑板,所述支撑板一侧铰接有第一连接板,所述第一连接板远离支撑板的一端滑动连接有竖板,所述竖板一侧固定连接有第二连接板,所述第二连接板一端铰接有底座,所述底座底部设置有吸盘,所述吸盘表面设置有贯穿的通孔；通过连接管底端开口处于悬空状态,而连接软管与连接管相连通,各个连接管通过吸环相互连通,因此,当连接管离开吸附面时,在负压腔室的吸力作用下,会对吸盘内部的空气进行抽取,从而使得吸盘底端的空间再次处于较大负压的状态下,从而将吸盘再次吸附在车载操作台上,从而使得吸盘再次获得较大吸力,保持较好的稳定性。(The invention discloses a vehicle mobile phone connector, which comprises a supporting plate for clamping a mobile phone, wherein one side of the supporting plate is hinged with a first connecting plate, one end of the first connecting plate, which is far away from the supporting plate, is connected with a vertical plate in a sliding manner, one side of the vertical plate is fixedly connected with a second connecting plate, one end of the second connecting plate is hinged with a base, the bottom of the base is provided with a sucker, and the surface of the sucker is provided with a through hole; be in unsettled state through connecting pipe bottom opening, and coupling hose is linked together with the connecting pipe, each connecting pipe communicates each other through inhaling the ring, consequently, when the connecting pipe leaves the adsorption plane, under negative pressure cavity's suction effect, can extract the inside air of sucking disc, thereby make the space of sucking disc bottom be in under the state of great negative pressure once more, thereby adsorb the sucking disc on-vehicle operation panel once more, thereby make the sucking disc obtain great suction once more, keep better stability.)

1. The utility model provides an automobile-used cell-phone connector, is including backup pad (1) that is used for the centre gripping cell-phone, backup pad (1) one side articulates there is first connecting plate (10), the one end sliding connection that backup pad (1) was kept away from in first connecting plate (10) has riser (11), riser (11) one side fixedly connected with second connecting plate (14), second connecting plate (14) one end articulates there is base (15), base (15) bottom is provided with sucking disc (16), its characterized in that: the sucking disc (16) surface is provided with the through-hole that runs through, through-hole department is provided with connecting pipe (30), the intercommunication is provided with inhales ring (32) in the connecting pipe (30) outside, one side that backup pad (1) is close to first connecting plate (10) is provided with the negative pressure cavity, the intercommunication has the hose between negative pressure cavity and connecting pipe (30).

2. The vehicular handset connector according to claim 1, wherein: the utility model discloses a support plate, including backup pad (1), baffle (3), guide bar (4) are provided with to backup pad (1) one side fixedly connected with bracing piece (2) bottom sliding connection, backup pad (1) one side fixedly connected with baffle (3), baffle (3) one side is kept away from in backup pad (1), guide bar (4) run through bracing piece (2) and with bracing piece (2) sliding connection.

3. The vehicular handset connector according to claim 2, wherein: the supporting plate is characterized in that a groove is formed in the supporting plate (1), the supporting block (5) is fixedly connected to the inner portion of the groove, the guide rod (4) penetrates through the supporting block (5) and is in sliding connection with the supporting block (5), first springs (6) are arranged at the top and the bottom of the supporting block (5), and the first springs (6) are arranged on the outer side of the guide rod (4).

4. The vehicular handset connector according to claim 1, wherein: backup pad (1) one side is provided with wireless module (7) that charges, backup pad (1) bottom is connected with charging wire (8).

5. The vehicular handset connector according to claim 1, wherein: riser (11) one side is provided with the notch, the inside fixedly connected with of notch erects axle (12), erect axle (12) run through first connecting plate (10) and with first connecting plate (10) sliding connection, erect axle (12) outside and be provided with second spring (13), second spring (13) set up between first connecting plate (10) riser (11).

6. The vehicular handset connector according to claim 1, wherein: the improved structure is characterized in that a strip-shaped groove (17) is formed in the top of the base (15), pin shafts (18) are fixedly connected to the front side and the rear side of the second connecting plate (14), one end, far away from the vertical plate (11), of the second connecting plate (14) is rotatably connected to the inside of the strip-shaped groove (17) through the pin shafts (18), each pin shaft (18) penetrates through the base (15) and extends to the outside of the base (15), one end, far away from the vertical plate (11), of each pin shaft (18) is fixedly connected with a limiting plate (19), limiting frames (20) are fixedly connected to the front side and the rear side of the base (15), one side inside each limiting frame (20) is provided with a limiting block (21), round shafts (22) are fixedly connected to the front side and the rear side of each limiting block (21), a fixing plate (23) is arranged at one end, far away from the base (15), of each round shaft (22), and the fixing plate (23) is fixedly connected with the limiting frames (20), the round shaft (22) and the fixing plate (23) are rotatably connected with the base (15), and a third spring (24) is arranged on one side, opposite to the limiting block (21) and the limiting frame (20).

7. The vehicular handset connector according to claim 1, wherein: base (15) top is provided with screw rod (25), sucking disc (16) top fixedly connected with sleeve pipe (26), screw rod (25) bottom is rotated with sleeve pipe (26) and is connected, be provided with the spout that runs through on second connecting plate (14), the inside sliding connection of spout has slider (27), screw rod (25) run through slider (27) and with slider (27) threaded connection.

8. The vehicular handset connector according to claim 6, wherein: second connecting plate (14) bottom is provided with coupling hose (29), circle axle (22) and fixed plate (23) all rotate with base (15), the coupling hose (29) outside is provided with the pulley, the pulley outside is rotated and is connected with the extension board, extension board and base (15) fixed connection, coupling hose (29) bottom intercommunication is provided with honeycomb duct (33) that are linked together with connecting pipe (30), the coupling hose (29) outside is provided with the clip.

Technical Field

The invention relates to the technical field of mobile phone connectors, in particular to a mobile phone connector for a vehicle.

Background

The vehicle-mounted mobile phone support is used for fixing a mobile phone on a vehicle, is the simplest and most convenient mobile phone support which is used in the most comfortable mode, focuses on user experience and excellent structural design, and allows a user to obtain better user experience according to human engineering and participation of human-machine design concept.

Chinese patent CN107800835A discloses a mobile phone support for vehicle, which solves the problem of inconvenient installation of mobile phone, and the technical solution to solve the problem mainly includes a support body, a bearing seat, two clamping arms and a front closing cover, wherein the support body is provided with a fixed column located above the bearing seat and a vertically extending body chute, the bearing seat is provided with a slide block in sliding fit with the body chute, the fixed column is provided with a tension spring connected with the bearing seat: be equipped with the bearing seat spout on the bearing seat, the middle part of pressing from both sides tight arm is articulated through connecting pivot and support body, and the one end of pressing from both sides tight arm stretches out outward flange, the other end and the bearing seat spout sliding fit of support body and closing cap, and the bearing seat slides about the body spout and drives the tight arm of clamp and rotate around connecting the pivot: the bottom of bearing seat is equipped with to rotate and connects in the regulation pivot of ann revolving chute, is equipped with on the regulation pivot along the first charging plug, the second charging plug that adjust pivot circumference and be used for the closure plate of closed mounting groove notch that distributes.

But this equipment is fixed to the fixed sucking disc that only adopts of cell-phone connector, but along with the increase of live time to and the road surface is comparatively jolt in going, leads to the leakproofness of sucking disc to descend, thereby appears becoming flexible, thereby leads to the installation unstable, and the cell-phone has the risk that drops.

Therefore, it is necessary to provide a mobile phone connector for a vehicle to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a mobile phone connector for a vehicle, which aims to solve the problems that the sealing performance of a sucking disc is reduced along with the increase of the service time and bumpy road surface in the prior art, so that the sucking disc is loosened, the mounting is unstable, and the mobile phone is in risk of falling.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automobile-used cell-phone connector, backup pad one side articulates there is first connecting plate, the one end sliding connection that the backup pad was kept away from to first connecting plate has the riser, riser one side fixedly connected with second connecting plate, second connecting plate one end articulates there is the base, the base bottom is provided with the sucking disc, the sucking disc surface is provided with the through-hole that runs through, through-hole department is provided with the connecting pipe, connecting pipe outside intercommunication is provided with inhales the ring, one side that the backup pad is close to first connecting plate is provided with the negative pressure cavity, the intercommunication has the hose between negative pressure cavity and the connecting pipe.

When the sucking disc is used, when the sucking disc leaks air, the pressure in the sucking disc is increased, the sucking disc cannot cling to the adsorption surface at the moment, but can upwards bulge for a certain distance, before, the connecting pipe on the sucking disc clings to the adsorption surface, after the sucking disc upwards bulges for a certain distance, the bottom opening of the connecting pipe is in a suspended state, the connecting hose is communicated with the connecting pipe, and the connecting pipes are communicated with each other through the suction rings, so that when the connecting pipe leaves the adsorption surface, air in the sucking disc can be extracted under the suction effect of the negative pressure chamber, the space at the bottom end of the sucking disc is in a state of larger negative pressure again, the sucking disc is adsorbed on the vehicle-mounted operating platform again, the sucking disc obtains larger suction force again, better stability is kept, the negative pressure in the sucking disc can be continuously supplemented through the negative pressure chamber, and the service life is prolonged, when the inside entering air of sucking disc, can bleed to sucking disc inside through the negative pressure cavity to make the sucking disc obtain great suction again, keep the stability of centre gripping, in time the car is gone on the road surface of jolting, perhaps is the use of longer time, still has stronger adsorptivity, thereby improves the stability of the in-process of traveling.

As a further scheme of the invention, the bottom of the supporting plate is slidably connected with a supporting rod, one side of the supporting plate is fixedly connected with a baffle, one side of the supporting plate, which is far away from the baffle, is provided with a guide rod, and the guide rod penetrates through the supporting rod and is slidably connected with the supporting rod.

During the specific use, the guide bar of backup pad rear side runs through the supporting shoe and with supporting shoe sliding connection, is favorable to supporting the cell-phone on the one hand, and on the other hand can further carry out the shock attenuation to the cell-phone.

As a further scheme of the invention, a groove is formed in the supporting plate, a supporting block is fixedly connected inside the groove, the guide rod penetrates through the supporting block and is in sliding connection with the supporting block, first springs are arranged at the top and the bottom of the supporting block, and the first springs are arranged on the outer side of the guide rod.

When the shock absorber is used specifically, the first spring is beneficial to the supporting plate to absorb shock.

As a further scheme of the invention, one side of the supporting plate is provided with a wireless charging module, and the bottom end of the supporting plate is connected with a charging wire.

When specifically using, can charge to the cell-phone through being provided with wireless charging module, the charging wire of backup pad bottom is favorable to realizing that wireless charging module and car go up being connected of circuit, can charge to the cell-phone that presss from both sides in the mechanism through this mechanism.

As a further scheme of the invention, a notch is formed in one side of each vertical plate, a vertical shaft is fixedly connected inside the notch, the vertical shaft penetrates through the first connecting plate and is in sliding connection with the first connecting plate, a second spring is arranged on the outer side of the vertical shaft, and the second spring is arranged between the vertical plates of the first connecting plate.

When specifically using, the second spring is favorable to carrying out the shock attenuation to first connecting plate.

According to the further scheme, a strip-shaped groove is formed in the top of the base, pin shafts are fixedly connected to the front side and the rear side of the second connecting plate, one end, away from the vertical plate, of the second connecting plate is rotatably connected to the inside of the strip-shaped groove through the pin shafts, the pin shafts penetrate through the base and extend to the outer side of the base, one end, extending to the outer side of the base, of each pin shaft is fixedly connected with a limiting plate, limiting frames are fixedly connected to the front side and the rear side of the base, a limiting block is arranged on one side inside each limiting frame, round shafts are fixedly connected to the front side and the rear side of the limiting block, a fixing plate is arranged at one end, away from the base, of each round shaft, the fixing plate is fixedly connected with the limiting frames, the round shafts and the fixing plates are rotatably connected with the base, and a third spring is arranged on one side, opposite to the limiting blocks and the limiting frames.

During the specific use, the sucking disc downstream adsorbs on the operation panel in the car, thereby fix the base, later when rotating second connecting plate angle regulation, can drive the round pin axle and rotate, the limiting plate that the round pin axle drove its outside rotates, limiting plate pivoted in-process can extrude the stopper, thereby impel the stopper to overcome the elasticity of third spring, rotate to the inboard, when the second connecting plate rotates to certain angle, limiting plate and stopper block each other, thereby can keep the stability after the second connecting plate rotates, be favorable to keeping the stability of the in-process cell-phone of traveling.

As a further scheme of the invention, a screw rod is arranged at the top of the base, a sleeve is fixedly connected to the top of the sucker, the bottom end of the screw rod is rotatably connected with the sleeve, a through chute is arranged on the second connecting plate, a sliding block is slidably connected inside the chute, and the screw rod penetrates through the sliding block and is in threaded connection with the sliding block.

When the automatic sucking disc fixing device is used specifically, the screw rod can be driven to move downwards by rotating the screw rod, the bottom end of the screw rod is connected with the sleeve in a rotating mode, therefore, the screw rod can drive the sucking disc to move downwards when moving downwards, the sucking disc moves downwards and is adsorbed on an operation table in a car, and therefore the base is fixed well.

As a further scheme of the invention, the bottom end of the second connecting plate is provided with a connecting hose, the round shaft and the fixed plate rotate together with the base, a pulley is arranged on the outer side of the connecting hose, a support plate is rotatably connected to the outer side of the pulley, the support plate is fixedly connected with the base, the bottom end of the connecting hose is communicated with a guide pipe communicated with the connecting pipe, and a clamp is arranged on the outer side of the connecting hose.

When specifically using, coupling hose is linked together with the connecting pipe, and each connecting pipe communicates each other through inhaling the ring, consequently, when the connecting pipe leaves the adsorption plane, under negative pressure cavity's suction effect, can extract the inside air of sucking disc to make the space of sucking disc bottom be in under the state of great negative pressure once more, thereby adsorb the sucking disc on-vehicle operation panel once more, thereby make the sucking disc obtain great suction once more, keep better stability.

The working principle is as follows: the screw rod can be rotated to drive the screw rod to move downwards, the bottom end of the screw rod is rotationally connected with the sleeve, so that the screw rod can drive the sucker to move downwards when moving downwards, the sucker moves downwards and is adsorbed on an operation table in the vehicle, the base is fixed, then the second connecting plate is rotated to adjust the angle, the pin shaft can be driven to rotate, the pin shaft drives the limiting plate on the outer side of the pin shaft to rotate, the limiting plate can be extruded during the rotation process of the limiting plate, so that the limiting plate overcomes the elastic force of the third spring and rotates towards the inner side, when the second connecting plate rotates to a certain angle, the limiting plate is mutually clamped with the limiting block, so that the stability after the rotation of the second connecting plate can be kept, the stability of the mobile phone during the driving process can be kept, when the mobile phone is adjusted to a proper height through the second connecting plate, the specific angle of the supporting plate can be adjusted to an angle suitable for a user to watch through the connecting lug plate, when the mobile phone is shaken up and down in the driving process, the first connecting plate slides up and down along the notch, the second spring is arranged outside the vertical shaft, the second spring can be extruded when the first connecting plate slides up and down, so that the damping effect is achieved under the action of the second spring, the situation that the mobile phone drops down due to jolting in the driving process is avoided, when the sucking disc leaks air, the pressure inside the sucking disc is increased, the sucking disc cannot cling to the adsorption surface at the moment, but can bulge upwards for a certain distance, in the prior art, the connection pipe is also cling to the adsorption surface, after the sucking disc bulges upwards for a certain distance, the opening at the bottom end of the connection pipe is in a suspended state, the connection hose is communicated with the connection pipe, and the connection pipes are communicated with each other through the suction rings, when the connecting pipe leaves the adsorption plane, under the suction effect of negative pressure cavity, can extract the inside air of sucking disc to make the space of sucking disc bottom be in under the state of great negative pressure once more, thereby adsorb the sucking disc on-vehicle operation panel once more, thereby make the sucking disc obtain great suction once more, keep better stability.

The mobile phone connector for the vehicle achieves the damping effect under the action of the second spring, so that the situation that a mobile phone drops due to bumping in the driving process is avoided, when the sucker leaks air, the pressure in the sucker is increased, the sucker does not cling to the adsorption surface at the moment but upwards bulges for a certain distance, before, the connection pipe is also in a close contact with the adsorption surface, after the sucker upwards bulges for a certain distance, the bottom end opening of the connection pipe is in a suspended state, the connection hose is communicated with the connection pipe, and the connection pipes are communicated with each other through the suction ring, so that when the connection pipe leaves the adsorption surface, air in the sucker is extracted under the suction effect of the negative pressure chamber, the space at the bottom end of the sucker is in a state of larger negative pressure again, the sucker is adsorbed on a vehicle-mounted operating platform again, and the sucker obtains larger suction force again, and better stability is maintained.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the support plate construction of the present invention;

FIG. 3 is a schematic view of the chuck construction of the present invention;

fig. 4 is a schematic view of a riser configuration of the present invention;

FIG. 5 is a left side view of the present invention;

FIG. 6 is a front view of the present invention;

FIG. 7 is a top view of the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 3 in accordance with the present invention;

FIG. 9 is an enlarged view of the portion B of FIG. 3 according to the present invention;

FIG. 10 is an enlarged view of the structure of the portion C of FIG. 2 according to the present invention.

In the figure: 1. a support plate; 2. a support bar; 3. a baffle plate; 4. a guide bar; 5. a support block; 6. a first spring; 7. a wireless charging module; 8. a charging wire; 9. connecting the ear plates; 10. a first connecting plate; 11. a vertical plate; 12. a vertical axis; 13. a second spring; 14. a second connecting plate; 15. a base; 16. a suction cup; 17. a strip-shaped groove; 18. a pin shaft; 19. a limiting plate; 20. a limiting frame; 21. a limiting block; 22. a circular shaft; 23. a fixing plate; 24. a third spring; 25. a screw; 26. a sleeve; 27. a slider; 28. a protrusion; 29. a connecting hose; 30. a connecting pipe; 31. an opening; 32. a suction ring; 33. and a flow guide pipe.

Detailed Description

As shown in fig. 1 to 8, a vehicle mobile phone connector comprises a clamping mechanism for clamping a mobile phone, the clamping mechanism comprises a support plate 1, the bottom of the support plate 1 is slidably connected with a support rod 2, the support rod 2 is arranged in a J shape, one side of the support plate 1 is fixedly connected with a baffle 3, one side of the support plate 1, which is far away from the baffle 3, is provided with a guide rod 4, the guide rod 4 penetrates through the support rod 2 and is slidably connected with the support rod 2, the support plate 1 is provided with a groove, a support block 5 is fixedly connected inside the groove, the guide rod 4 penetrates through the support block 5 and is slidably connected with the support block 5, the top and the bottom of the support block 5 are both provided with a first spring 6, the first spring 6 is arranged outside the guide rod 4, one side of the support plate 1 is provided with a wireless charging module 7, the bottom end of the support plate 1 is connected with a charging wire 8, the utility model discloses a supporting plate, including backup pad 1, 3 sides of baffle, connecting ear plate 9 one end articulates there is first connecting plate 10, the one end that backup pad 1 was kept away from to first connecting plate 10 is provided with riser 11, riser 11 one side is provided with the notch, the inside fixedly connected with vertical axis 12 of notch, vertical axis 12 run through first connecting plate 10 and with first connecting plate 10 sliding connection, the vertical axis 12 outside is provided with second spring 13, second spring 13 sets up between 10 risers 11 of first connecting plate, first connecting plate 10 one side fixedly connected with second connecting plate 14 is kept away from to riser 11, one side that second connecting plate 14 kept away from riser 11 articulates there is supporting mechanism.

When in use, the supporting mechanism is fixed on an operation table in a vehicle by using negative pressure, because the second connecting plate 14 is hinged with the supporting mechanism, the angle between the vertical plate 11 and the first connecting plate 10 can be adjusted by rotating the second connecting plate 14, and further the angle of the mobile phone on the supporting plate 1 is adjusted, wherein the first connecting plate 10 is hinged with the connecting lug plate 9, when the mobile phone is adjusted to a proper height by the second connecting plate 14, the specific angle of the supporting plate 1 is adjusted by the connecting lug plate 9, the mobile phone can be adjusted to an angle suitable for a user to watch, and is convenient for the user to use, the vertical shaft 12 penetrates through the first connecting plate 10 and is in sliding connection with the first connecting plate 10, when the mobile phone jolts up and down in the driving process, the first connecting plate 10 slides up and down along the notch, the second spring 13 is arranged outside the vertical shaft 12, when the first connecting plate 10 slides up and down, the second spring 13 can be extruded, so that a damping effect is achieved under the action of the second spring 13, and the situation that the mobile phone drops due to jolting during driving is avoided.

And can charge to the cell-phone through being provided with wireless module 7 that charges, the charging wire 8 of 1 bottom in backup pad is favorable to realizing being connected of circuit on wireless module 7 and the car that charges, can charge to the cell-phone on the clamping mechanism through this mechanism, and through being provided with bracing piece 2, can support the cell-phone, guide bar 4 of 1 rear sides in backup pad runs through supporting shoe 5 and with supporting shoe 5 sliding connection, be favorable to supporting the cell-phone on the one hand, on the other hand can further carry out the shock attenuation to the cell-phone.

As shown in fig. 1, 2, 3, 4, 6, 7 and 9, the supporting mechanism includes a base 15 and a suction cup 16 disposed at the bottom of the base 15, a strip-shaped groove 17 is disposed at the top of the base 15, pin shafts 18 are fixedly connected to the front and rear sides of the second connecting plate 14, one end of the second connecting plate 14 away from the riser 11 is rotatably connected to the inside of the strip-shaped groove 17 through the pin shafts 18, the pin shafts 18 penetrate through the base 15 and extend to the outside of the base 15, one end of the pin shafts 18 extending to the outside of the base 15 is fixedly connected with a limiting plate 19, both the front and rear sides of the base 15 are fixedly connected with a limiting frame 20, one side inside the limiting frame 20 is provided with a limiting block 21, both the front and rear sides of the limiting block 21 are fixedly connected with circular shafts 22, one end of the circular shafts 22 away from the base 15 is provided with a fixing plate 23, the fixing plate 23 is fixedly connected with the limiting frame 20, the circular shafts 22 and the fixing plate 23 are rotatably connected with the base 15, the equal fixedly connected with spring holder in the relative one side of stopper 21 and spacing frame 20, two be provided with third spring 24 between the spring holder, base 15 top is provided with screw rod 25, 16 top fixedly connected with sleeve pipes 26 of sucking disc, screw rod 25 bottom is rotated with sleeve pipes 26 and is connected, be provided with the spout that runs through on the second connecting plate 14, the inside sliding connection of spout has slider 27, screw rod 25 run through slider 27 and with slider 27 threaded connection.

During the use, because screw rod 25 and slider 27 threaded connection, therefore, it can drive its downstream to rotate screw rod 25, the screw rod 25 bottom is connected with the sleeve rotation, consequently can drive sucking disc 16 downstream when screw rod 25 downstream, sucking disc 16 downstream adsorbs on the interior operation panel of car, thereby fix base 15, later when rotating second connecting plate 14 angle regulation, can drive round pin axle 18 and rotate, round pin axle 18 drives the limiting plate 19 in its outside and rotates, limiting plate 19 pivoted in-process can extrude stopper 21, thereby make stopper 21 overcome the elasticity of third spring 24, rotate to the inboard, when second connecting plate 14 rotates to certain angle, limiting plate 19 and stopper 21 block each other, thereby can keep second connecting plate 14 stability after rotating, be favorable to keeping the stability of the in-process cell-phone of traveling.

As shown in fig. 1, 2, 3, 4, 9, and 10, a protrusion 28 is disposed on one side of the supporting plate 1 away from the baffle 3, the inside of the supporting plate is provided with a negative pressure chamber, an inflation tube is disposed on the outer side of the supporting plate 1, the outer side of the inflation tube is connected with an end cover through a thread, the inflation tube is communicated with the negative pressure chamber, a connecting hose 29 is disposed on the inner side of the supporting plate 1, the bottom end of the second connecting plate 14 is provided with the connecting hose 29, the circular shaft 22 and the fixing plate 23 both rotate with the base 15, a pulley is disposed on the outer side of the connecting hose 29, a support plate is rotatably connected to the outer side of the pulley, the support plate is fixedly connected with the base 15, a through hole is disposed on the suction cup 16, a connecting tube 30 is disposed at the through hole, the bottom end of the connecting tube 30 is provided with an opening 31, a suction ring 32 is disposed on the suction cup 16, the suction ring 32 penetrates through the connecting tube 30 and is communicated with the connecting tube 30, the bottom end of the connecting hose 29 is communicated with a guide pipe 33 communicated with the connecting pipe 30, and a clamp is arranged outside the connecting hose 29.

When the vehicle-mounted operation table is used, when the suction cup 16 leaks air, the pressure inside the suction cup 16 is increased, the suction cup 16 cannot be attached to the adsorption surface and can be upwards expanded for a certain distance, before that, the connecting pipe 30 on the vehicle-mounted operation table is also attached to the adsorption surface, after the suction cup 16 is upwards expanded for a certain distance, the bottom end opening 31 of the connecting pipe 30 is in a suspended state, the connecting hose 29 is communicated with the connecting pipe 30, and the connecting pipes 30 are mutually communicated through the suction rings 32, so that when the connecting pipe 30 leaves the adsorption surface, air inside the suction cup 16 can be extracted under the action of the suction force of the negative pressure chamber, the space at the bottom end of the suction cup 16 is in a state of larger negative pressure again, the suction cup 16 is adsorbed on the vehicle-mounted operation table again, the suction cup 16 obtains larger suction force again, and better stability is kept.

This mechanism is through being provided with the negative pressure chamber, can constantly supply the inside negative pressure of sucking disc 16, and when live time increases, 16 inside entering air of sucking disc can be bled to 16 inside through the negative pressure chamber to make sucking disc 16 obtain great suction again, keep the stability of centre gripping, in time the car goes on the road surface of jolting, or the use of longer time, still has stronger adsorptivity, thereby improve the stability of the in-process of traveling.

The working principle is as follows: the screw rod 25 can be driven to move downwards, the bottom end of the screw rod 25 is rotatably connected with the sleeve, so that when the screw rod 25 moves downwards, the sucker 16 can be driven to move downwards, the sucker 16 moves downwards and is adsorbed on an operation table in a vehicle, the base 15 is fixed, then when the second connecting plate 14 is rotated to adjust the angle, the pin shaft 18 can be driven to rotate, the pin shaft 18 drives the limiting plate 19 on the outer side of the pin shaft to rotate, the limiting block 21 can be extruded in the rotating process of the limiting plate 19, the limiting block 21 is driven to overcome the elastic force of the third spring 24 and rotate inwards, when the second connecting plate 14 rotates to a certain angle, the limiting plate 19 and the limiting block 21 are mutually clamped, so that the stability of the second connecting plate 14 after rotation can be kept, the stability of the mobile phone in the driving process can be kept, when the mobile phone is adjusted to a proper height through the second connecting plate 14, the specific angle of the supporting plate 1 is adjusted through the connecting lug plate 9, the mobile phone can be adjusted to be suitable for the viewing angle of a user, and is convenient for the user to use, the vertical shaft 12 penetrates through the first connecting plate 10 and is in sliding connection with the first connecting plate 10, when the mobile phone jolts up and down in the driving process, the first connecting plate 10 slides up and down along the notch, the second spring 13 is arranged outside the vertical shaft 12, when the first connecting plate 10 slides up and down, the second spring 13 can be extruded, so that the damping effect is achieved under the action of the second spring 13, the situation that the mobile phone drops due to jolting in the driving process is avoided, when the sucker 16 leaks air, the pressure inside the sucker 16 is increased, at the moment, the sucker 16 cannot be attached to the adsorption surface, but can bulge upwards for a certain distance, before, the connecting pipe 30 is also attached to the adsorption surface, when the sucker 16 bulges upwards for a certain distance, the opening 31 at the bottom end of the connecting pipe 30 is in a suspended state, and the connecting hose 29 is communicated with the connecting pipes 30, and the connecting pipes 30 are communicated with each other through the suction rings 32, so that when the connecting pipes 30 leave the suction surface, air in the suction cup 16 can be extracted under the action of the suction force of the negative pressure chamber, and the space at the bottom end of the suction cup 16 is in a state of larger negative pressure again, so that the suction cup 16 is adsorbed on the vehicle-mounted operating platform again, and the suction cup 16 obtains larger suction force again and keeps better stability.