CN110952852B

CN110952852B - Vehicle door mechanism of anti gale

Info

Publication number: CN110952852B
Application number: CN201911299444.9A
Authority: CN
Inventors: 李永建; 李水兰; 李宇钢
Original assignee: Hangzhou Fuyang Xinyuan New Energy Co Ltd
Current assignee: Hangzhou Haozhi Technology Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2021-03-19
Anticipated expiration: 2039-12-17
Also published as: CN112627656A; CN110952852A

Abstract

The invention belongs to the technical field of vehicle doors, and particularly relates to a strong wind resistant vehicle door mechanism which comprises a vehicle door, a door frame and a hinged limiting mechanism, wherein after the vehicle door is opened by 70-80 degrees, if a larger pushing force is provided, the vehicle door can still continuously swing backwards to 180 degrees, and the limiting mechanism and the hinged mechanism cannot be influenced; after the door is opened by 70 degrees to 80 degrees, if the door is blown by wind in strong wind weather, the door continuously swings backwards to influence the limiting mechanism and the hinge mechanism. After the door is opened by 180 degrees, the door is parallel to the compartment, and the door cannot be continuously influenced by the blowing of wind; in addition, the invention limits the position of the vehicle door after swinging to 180 degrees through the limiting mechanism, and prevents the vehicle door from swinging under the action of wind to cause damage to the vehicle door. The rule of the sliding distance of the first articulated shaft and the second articulated shaft in the corresponding guide channels can ensure smaller buffer displacement, and the invention has stronger practical effect.

Description

Vehicle door mechanism of anti gale

Technical Field

The invention belongs to the technical field of vehicle doors, and particularly relates to a strong wind resistant vehicle door mechanism.

Background

In some regions, windy weather is high and wind is high. When a general engineering vehicle works in the environment, people need to get on or off the engineering vehicle, the door can be subjected to high wind power when the door is opened, the door can be separated from the hand if people do not pay attention to the door, the door can be automatically opened under the action of the wind, the door of the traditional engineering vehicle can continuously swing backwards under the action of the wind after being opened to an extreme position because the opening angle of the door of the traditional engineering vehicle is 70-80 degrees, and the hinge mechanism is deformed or the limiting mechanism is pulled off. The designed vehicle door can automatically stop for people to get on and off through the limiting mechanism after being opened to 70-80 degrees, and is the same as the vehicle door used by the traditional engineering vehicle, meanwhile, after being opened to 70-80 degrees, if a large pushing force exists, the vehicle door can continuously swing backwards to 180 degrees without influencing the limiting mechanism and the hinging mechanism, and under the angle, the vehicle door is parallel to the compartment, and the blowing of wind cannot continuously cause large influence on the vehicle door; in addition, the invention limits the position of the vehicle door after swinging to 180 degrees through the limiting mechanism, and prevents the vehicle door from swinging under the action of wind to cause damage to the vehicle door.

The invention designs a vehicle door mechanism resisting strong wind to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a vehicle door mechanism for resisting strong wind, which is realized by adopting the following technical scheme.

A kind of vehicle door mechanism resisting the strong wind, it includes door, door frame, articularly connects the stop gear, wherein the up-and-down symmetrical opening has two first mounting grooves to mount the articularly connects the stop gear on the inner frame surface of one end of door frame, the up-and-down symmetrical opening has two second mounting grooves to mount the articularly connects the stop gear on the terminal surface of one end of door, the door is mounted on door frame through two articularly connects the stop gear distributed up-and-down symmetrically, and install the sealing strip playing the sealing function to the car in the door and door frame; the method is characterized in that: the two hinged limiting mechanisms are respectively composed of a hinged mechanism and a limiting mechanism; the door is hinged and installed on the door frame through a hinge mechanism, and the hinge mechanism can allow the door to be opened 180 degrees relative to the door frame; the limiting mechanism is arranged in a second mounting groove formed in the door, and the limiting mechanism controls the door to form 3 different limiting points in the opening and closing process; the two hinge mechanisms are in transmission connection with the corresponding limiting mechanisms through a displacement mechanism respectively, and the displacement mechanism has a displacement amplification function.

The limiting box adopts a traditional limiting box structure and a preferred roller structure, and the hinge mechanism adopts a 180-degree hinge mechanism.

When the vehicle door is in a closed state, the limiting mechanism designed by the invention has the advantages that the group of limiting bulges at the starting end on the limiting arm are matched with the idler wheels in the limiting box, and the limiting box has a limiting effect on the sliding of the limiting arm, so that the vehicle door has certain resistance when opened, namely, the limiting mechanism limits the vehicle door when the vehicle door is closed, and the vehicle door is prevented from not being opened after being unlocked and swinging under the action of wind.

As a further improvement of the present technology, the hinge mechanism includes a first hinge housing, a second hinge housing, a first hinge arm, a second hinge arm, a first hinge shaft, a second hinge shaft, a third hinge shaft, a fourth hinge shaft, and a fifth hinge shaft, wherein two symmetrically distributed guiding through slots are respectively formed on two side surfaces of the first hinge housing and the second hinge housing, the first hinge housing is fixedly mounted in a second mounting slot formed on the vehicle door, and the second hinge housing is fixedly mounted in a first mounting slot formed on the door frame; two ends of a third hinge shaft are fixedly arranged on two side surfaces in the second hinge shell, two ends of a first hinge shaft respectively penetrate through two guide through grooves formed in the first hinge shell to be in sliding fit with the guide through grooves, and two ends of the first hinge shaft are respectively arranged on the first hinge shaft and the third hinge shaft through rotating fit; two ends of a second hinge shaft are fixedly arranged on two side surfaces in the first hinge shell, two ends of a fifth hinge shaft respectively penetrate through two guide through grooves formed in the second hinge shell to be in sliding fit with the guide through grooves, and two ends of the second hinge shaft are respectively arranged on the second hinge shaft and the fifth hinge shaft through rotating fit; the first hinge arm and the second hinge arm are hinged at staggered positions through a fourth hinge shaft.

The hinge chain formed by the first hinge arm, the second hinge arm, the first hinge shaft, the second hinge shaft, the third hinge shaft, the fourth hinge shaft and the fifth hinge shaft enables the first hinge shell to swing 180 degrees relative to the second hinge shell, namely the door can be opened 180 degrees relative to the door frame. According to the operation principle of the traditional 180-degree hinge mechanism, when the first swing shell swings 80 degrees relative to the second swing shell, the sliding distance of the first hinge shaft and the second hinge shaft in the corresponding guide channels is larger than the sliding distance of the first swing shell after swinging 100 degrees relative to the second swing shell and the sliding distance of the first hinge shaft and the second hinge shaft in the corresponding guide channels; therefore, the distance between two groups of limiting protrusions close to the fixed plate in the three groups of limiting protrusions on the limiting arm is smaller than the distance between two groups of limiting protrusions close to the fixed plate; the mutual matching of the limiting mechanism and the opening angle of the vehicle door is ensured.

As a further improvement of the technology, the limiting mechanism comprises a limiting arm, a limiting box, a buffer plate, a fixing plate, limiting bulges and a buffer spring, wherein three groups of limiting bulges are arranged on the limiting arm along the length direction, two limiting bulges in each group of limiting bulges are distributed up and down symmetrically, two guide grooves are symmetrically formed in two side surfaces of the limiting arm, the fixing plate is fixedly installed at one end of the limiting arm, the limiting box is fixedly installed in a door, the limiting arm penetrates through a middle square hole of the limiting box, and the limiting box is matched with the limiting bulges on the limiting arm; two guide blocks are symmetrically arranged on two inner side surfaces of the buffer plate, the buffer plate is arranged on the limiting arm through the sliding fit of the two guide blocks and the two guide grooves, and a buffer spring is arranged between the buffer plate and the fixed plate; the distance between two groups of limiting protrusions close to the fixing plate in the three groups of limiting protrusions on the limiting arm is smaller than the distance between two groups of limiting protrusions far away from the fixing plate; the square hole in the middle of the buffer plate allows the limiting protrusion on the limiting arm to pass through.

In the invention, when the limiting arm moves relative to the limiting box fixed on the vehicle door, and the limiting box is contacted with the buffer plate arranged on the limiting arm, the buffer plate is extruded by the limiting box to move backwards, the buffer plate moves backwards to compress the buffer spring, and the buffer plate is buffered by the buffer spring; the movement of the limiting arm is buffered, namely, in the opening process of the vehicle door, when the vehicle door continuously swings backwards from 80 degrees of opening and swings to 180 degrees, the buffer spring starts to buffer the vehicle door when the limiting box is matched with the limiting bulge at the upper tail end of the limiting arm; after the door swung to 180 degrees, buffer spring's compression can provide a great swing resistance to the door for the door is obstructed in the back pendulum direction, and the preceding pendulum of door receives the spacing bellied spacing of terminal on the spacing arm simultaneously, makes the door swing 180 degrees back-and-forth swing by spacing, is in stable state, can not appear rocking, and then leads to the door impaired.

When the vehicle door swings backwards from 80 degrees, the action of strong wind is often used, the swinging process very needs the buffering action of the buffering spring, in order to enable the buffering spring to have a better buffering action, the buffering spring needs a larger elastic coefficient, but the larger the elastic coefficient, the larger the buffering force is, the larger the displacement is, the larger the vehicle door swinging resistance is, namely, the closer the vehicle door swinging angle is to 180 degrees, the larger the vehicle door swinging resistance is, the vehicle door is not beneficial to swinging to 180 degrees and is limited, so the smaller the buffering displacement of the buffering spring is, the better the design is. The rule of the sliding distance of the first articulated shaft and the second articulated shaft in the corresponding guide channels can ensure smaller buffer displacement, and the invention has stronger practical effect.

As a further improvement of the present technology, the displacement mechanism includes a guide rail housing, a connecting slider, a first rack, a fixed rotating shaft, a first gear, a second rack, and a guiding sliding sleeve, wherein two sliding chutes are symmetrically opened on two inner side surfaces of the guiding sliding sleeve, the guiding sliding sleeve is slidably mounted on the corresponding first hinge housing, and the two sliding chutes opened on the guiding sliding sleeve are slidably fitted with two ends of the corresponding first hinge shaft; the guide rail shell is fixedly arranged in a second mounting groove formed in the vehicle door, the connecting sliding block is slidably arranged in the guide rail shell, and one end of the connecting sliding block is fixedly connected with one end of the limiting arm, which is not provided with the fixing plate; one end of the first rack is fixedly arranged at the other end of the connecting slide block, and the other end of the first rack penetrates out of the guide rail shell; the fixed rotating shaft is rotatably arranged in a second mounting groove formed in the vehicle door, the first gear is fixedly arranged on the fixed rotating shaft, and the first gear is meshed with the first rack; two second gears are symmetrically and fixedly installed at two ends of the fixed rotating shaft, one ends of two second racks are symmetrically and fixedly installed on the guide sliding sleeve, and the two second racks are meshed with the two second gears.

When the first articulated shaft slides in the guide through groove formed in the first articulated shell, the first articulated shaft can drive the guide sliding sleeve to slide on the first articulated shell, the guide sliding sleeve slides to drive the two second racks to move, the two second racks move to drive the two second gears to rotate, the two second gears rotate to drive the fixed rotating shaft to rotate, the fixed rotating shaft rotates to drive the first gear to rotate, the first gear rotates to drive the first rack to slide, the first rack slides to drive the connecting sliding block to slide, and the connecting sliding block slides to drive the limiting arm to move relative to the limiting box; the diameter of the first gear is larger than that of the second gear.

The ratio of the moving distance of the limiting arm to the sliding distance of the guide sliding sleeve is enlarged through the first gear and the second gear, so that on one hand, the installation space of the hinge mechanism is reduced, and meanwhile, the gap after the vehicle door is opened is reduced; if the moving distance of spacing arm and the one-to-one transmission of sliding distance of direction sliding sleeve, then the shortest distance of the direction passageway on first articulated shell and the articulated shell of second just must increase, and the size of first articulated shell and second articulated shell also must increase, will make hinge mechanism's installation space grow like this, and the door is opening the clearance between back door and the door frame great simultaneously, is unfavorable for the stability of door.

On the other hand, the operation range of the first hinge shaft of the hinge mechanism is smaller, and certain space is needed between the limiting bulges in the limiting mechanism for limiting, so that labor is saved in the process of opening the vehicle door; therefore, the ratio of the moving distance of the designed limiting arm to the sliding distance of the guide sliding sleeve is enlarged.

As a further improvement of the technology, the displacement mechanism comprises a guide rail shell, a connecting slide block, a mounting block, a pull rope, a support shaft, a movable pulley, a mounting plate and a guide sliding sleeve, wherein two sliding chutes are symmetrically formed on two inner side surfaces of the guide sliding sleeve, the guide sliding sleeve is slidably mounted on the corresponding first hinge shell, and the two sliding chutes formed on the guide sliding sleeve are in sliding fit with two ends of the corresponding first hinge shaft; the guide rail shell is fixedly arranged in a second mounting groove formed in the vehicle door, the connecting sliding block is slidably arranged in the guide rail shell, and one end of the connecting sliding block is fixedly connected with one end of the limiting arm, which is not provided with the fixing plate; one ends of the two mounting blocks are symmetrically mounted at two ends of the connecting slide block, and the other ends of the two mounting blocks penetrate through the guide rail shell to be in sliding fit with the guide rail shell; the two support shafts are symmetrically arranged on two sides of the guide sliding sleeve, the two movable pulleys are rotatably arranged on the two support shafts, the mounting plate is fixedly arranged in a second mounting groove formed in the vehicle door, one ends of the two pull ropes are fixedly arranged on the mounting plate, and the other ends of the two pull ropes are fixedly connected with the two mounting blocks in a one-to-one correspondence manner by bypassing the two movable pulleys; the distance between the axes of the two support shafts and the sliding plane of the mounting block is larger than the radius of the movable pulley.

When the first articulated shaft slides in the guide through groove formed in the first articulated shell, the first articulated shaft can drive the guide sliding sleeve to slide on the first articulated shell, the guide sliding sleeve slides to drive the two movable pulleys to move, one end of each of the two pull ropes is fixed, and the other end of each of the two pull ropes is fixedly connected with the two mounting blocks in a one-to-one correspondence manner by bypassing the two movable pulleys, so that when the two movable pulleys move, the two pull ropes are pulled to move the two mounting blocks, the two mounting blocks move to drive the connecting sliding block to slide, and the connecting sliding block slides to drive the limiting arm to move relative to the limiting box; meanwhile, the other ends of the two pull ropes are transversely connected with the two mounting blocks by bypassing the movable pulley, so that the moving distance of the guide sliding sleeve is smaller than that of the connecting sliding block according to the working principle of the movable pulley.

When the vehicle door is not opened, the mounting block is positioned at one end of the track shell, and the mounting block is gradually close to the movable pulley along with the opening of the vehicle door. The distance between the axes of the two support shafts and the sliding plane of the mounting block is greater than the design purpose of the radius of the movable pulley: as the mounting block is gradually close to the movable pulley, the ratio of the moving distance of the mounting block to the moving distance of the movable pulley is gradually reduced, and the buffer displacement of the buffer spring in the process that the vehicle door swings 180 degrees from 80 degrees is further reduced.

The invention is combined on the basis of the existing hinge and the existing limiter, so that the vehicle door mechanism has the technology of being capable of opening 180 degrees and specifying the limiting point; first, at present, there is no similar product, as it is not possible to associate the present 180 degree hinge with the present stop to solve the problems of the present invention; secondly, the existing stopper installed on the ordinary vehicle door does not have a stopper for limiting 180 degrees, the ordinary vehicle door does not reach 90 degrees, and the existing stopper cannot be used under the condition of 180 degrees.

Compared with the traditional vehicle door technology, the beneficial effects of the design of the invention are as follows:

1. after the door designed by the invention is opened to 70-80 degrees, the door can automatically stop for people to get on and off through the limiting mechanism, and the door has the same effect as the door used by the traditional engineering vehicle and has the effect of the door of the traditional engineering vehicle.

2. After the door designed by the invention is opened by 70 degrees to 80 degrees, if a large pushing force is provided, the door can still swing backwards to 180 degrees, and the limit mechanism and the hinge mechanism cannot be influenced; after the door is opened by 70 degrees to 80 degrees, if the door is blown by wind in strong wind weather, the door continuously swings backwards to influence the limiting mechanism and the hinge mechanism.

3. After the door designed by the invention is opened by 180 degrees, the door is parallel to the carriage, and the door cannot be continuously influenced by the blowing of wind; in addition, the invention limits the position of the vehicle door after swinging to 180 degrees through the limiting mechanism, and prevents the vehicle door from swinging under the action of wind to cause damage to the vehicle door.

4. The rule of the sliding distance of the first articulated shaft and the second articulated shaft in the corresponding guide channels can ensure smaller buffer displacement, and the invention has stronger practical effect.

5. The design of the movable pulley further reduces the buffer displacement of the buffer spring during the process that the vehicle door swings 180 degrees from 80 degrees.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the installation of the first hinge limiting mechanism.

FIG. 3 is a schematic view of a door frame and door structure.

Fig. 4 is a schematic structural diagram of a first hinge limiting mechanism.

Fig. 5 is a schematic structural diagram of the limiting mechanism.

Fig. 6 is a schematic view of the first displacement mechanism.

Fig. 7 is a schematic view of the hinge mechanism.

FIG. 8 is a schematic view of the engagement of the first and second hinge arms.

Fig. 9 is a schematic view of the installation of the second hinge limiting mechanism.

Fig. 10 is a schematic structural view of a second hinge limiting mechanism.

Fig. 11 is a schematic view of a second displacement mechanism.

Number designation in the figures: 1. a vehicle door; 2. a door frame; 3. a hinged limiting mechanism; 4. a first mounting groove; 5. a second mounting groove; 6. a sealing strip; 7. a limiting arm; 8. a guide rail housing; 9. a displacement mechanism; 10. a hinge mechanism; 11. a limiting box; 12. a buffer plate; 13. a fixing plate; 14. a guide block; 15. a guide groove; 16. a limiting bulge; 17. connecting the sliding block; 18. a first rack; 19. fixing the rotating shaft; 20. a first gear; 21. a second gear; 22. a second rack; 23. a chute; 24. a guide sliding sleeve; 25. a first hinge housing; 26. a second hinge housing; 27. a first hinge arm; 28. a second hinge arm; 29. a guide through groove; 30. a first hinge shaft; 31. a second hinge shaft; 32. a third hinge shaft; 33. a fourth hinge shaft; 34. a fifth hinge shaft; 35. mounting blocks; 36. pulling a rope; 37. a support shaft; 38. a movable pulley; 39. mounting a plate; 40. a limiting mechanism; 41. a buffer spring.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the door comprises a vehicle door 1, a door frame 2 and a hinge limiting mechanism 3, wherein as shown in fig. 3, two first mounting grooves 4 for mounting the hinge limiting mechanism 3 are symmetrically formed in the upper and lower parts of the inner frame surface at one end of the door frame 2, two second mounting grooves 5 for mounting the hinge limiting mechanism 3 are symmetrically formed in the upper and lower parts of the end surface at one end of the vehicle door 1, the vehicle door 1 is mounted on the door frame 2 through the two hinge limiting mechanisms 3 which are symmetrically distributed in the upper and lower parts, and a sealing strip 6 which has a sealing effect on the interior of the vehicle is mounted between the vehicle door 1 and the door; the method is characterized in that: as shown in fig. 4, the two hinge limiting mechanisms 3 are respectively composed of two parts, namely a hinge mechanism 10 and a limiting mechanism 40; the vehicle door 1 is hinged and installed on the door frame 2 through a hinge mechanism 10, and the hinge mechanism 10 can allow the vehicle door 1 to be opened 180 degrees relative to the door frame 2; the limiting mechanism 40 is arranged in a second mounting groove 5 formed in the vehicle door 1, and the limiting mechanism 40 controls the vehicle door 1 to form 3 different limiting points in the opening and closing process; the two hinge mechanisms 10 are in transmission connection with the corresponding limiting mechanisms 40 through a displacement mechanism 9 respectively, and the displacement mechanism 9 has a displacement amplification function.

The limiting box 11 of the invention adopts a traditional limiting box 11 structure, preferably a roller structure, and the hinge mechanism 10 of the invention adopts a 180-degree hinge mechanism 10.

According to the limiting mechanism 40 designed by the invention, when the vehicle door 1 is in a closed state, the group of limiting protrusions 16 at the starting end of the limiting arm 7 are matched with the rollers in the limiting box 11, and the limiting box 11 has a limiting effect on the sliding of the limiting arm 7, so that the vehicle door 1 has certain resistance to opening, namely the limiting mechanism 40 limits the vehicle door 1 when the vehicle door 1 is closed, and the phenomenon that the vehicle door 1 is not opened after being unlocked and swings under the action of wind is prevented.

As shown in fig. 7 and 8, the hinge mechanism 10 includes a first hinge housing 25, a second hinge housing 26, a first hinge arm 27, a second hinge arm 28, a first hinge shaft 30, a second hinge shaft 31, a third hinge shaft 32, a fourth hinge shaft 33, and a fifth hinge shaft 34, wherein two symmetrically distributed guide through grooves 29 are respectively formed on two side surfaces of the first hinge housing 25 and the second hinge housing 26, the first hinge housing 25 is fixedly mounted in a second mounting groove 5 formed in the vehicle door 1, and the second hinge housing 26 is fixedly mounted in a first mounting groove 4 formed in the door frame 2; two ends of the third hinge shaft 32 are fixedly mounted on two side surfaces in the second hinge shell 26, two ends of the first hinge shaft 30 respectively pass through the two guide through grooves 29 formed in the first hinge shell 25 to be in sliding fit with the guide through grooves 29, and two ends of the first hinge arm 27 are respectively mounted on the first hinge shaft 30 and the third hinge shaft 32 through rotating fit; two ends of a second hinge shaft 31 are fixedly arranged on two side surfaces in the first hinge shell 25, two ends of a fifth hinge shaft 34 respectively pass through two guide through grooves 29 formed in the second hinge shell 26 to be in sliding fit with the guide through grooves 29, and two ends of a second hinge arm 28 are respectively arranged on the second hinge shaft 31 and the fifth hinge shaft 34 through rotating fit; the first hinge arm 27 and the second hinge arm 28 are hinged at staggered positions by a fourth hinge shaft 33.

The hinge chain formed by the first hinge arm 27, the second hinge arm 28, the first hinge shaft 30, the second hinge shaft 31, the third hinge shaft 32, the fourth hinge shaft 33 and the fifth hinge shaft 34 allows the first hinge housing 25 to swing 180 degrees with respect to the second hinge housing 26, i.e., the door 1 to open 180 degrees with respect to the door frame 2. According to the operation principle of the conventional 180-degree hinge mechanism 10, when the first swing shell swings 80 degrees in front of the second swing shell, the sliding distance between the first hinge shaft 30 and the second hinge shaft 31 in the corresponding guide channels is greater than the sliding distance between the first swing shell and the second hinge shaft 30 and the second hinge shaft 31 in the corresponding guide channels after the first swing shell swings 100 degrees in front of the second swing shell; therefore, the distance between two groups of limiting bulges 16 close to the fixing plate 13 in the three groups of limiting bulges 16 on the limiting arm 7 designed by the invention is smaller than the distance between two groups of limiting bulges 16 close to the fixing plate 13; the mutual matching of the limiting mechanism 40 and the opening angle of the vehicle door 1 is ensured.

As shown in fig. 5, the limiting mechanism 40 includes a limiting arm 7, a limiting box 11, a buffer plate 12, a fixing plate 13, limiting protrusions 16, and a buffer spring 41, wherein three sets of limiting protrusions 16 are provided on the limiting arm 7 along the length direction, two limiting protrusions 16 in each set of limiting protrusions 16 are distributed vertically and symmetrically, two guide grooves 15 are symmetrically provided on two side surfaces of the limiting arm 7, the fixing plate 13 is fixedly installed at one end of the limiting arm 7, the limiting box 11 is fixedly installed in the vehicle door 1, the limiting arm 7 passes through a middle square hole of the limiting box 11, and the limiting box 11 is matched with the limiting protrusions 16 on the limiting arm 7; two guide blocks 14 are symmetrically arranged on two inner side surfaces of the buffer plate 12, the buffer plate 12 is arranged on the limiting arm 7 through the sliding fit of the two guide blocks 14 and the two guide grooves 15, and a buffer spring 41 is arranged between the buffer plate 12 and the fixed plate 13; the distance between two groups of limiting bulges 16 close to the fixing plate 13 in the three groups of limiting bulges 16 on the limiting arm 7 is smaller than the distance between two groups of limiting bulges 16 far away from the fixing plate 13; a square hole in the middle of the damping plate 12 allows the stopper projection 16 on the stopper arm 7 to pass through.

In the invention, when the limiting arm 7 moves relative to the limiting box 11 fixed on the vehicle door 1, and when the limiting box 11 is contacted with the buffer plate 12 arranged on the limiting arm 7, the limiting box 11 extrudes the buffer plate 12 to enable the buffer plate 12 to move backwards, the buffer plate 12 moves backwards to compress the buffer spring 41, and the buffer spring 41 has a buffer effect on the buffer plate 12; the movement of the limiting arm 7 is buffered, namely, the buffer spring 41 starts to buffer the vehicle door 1 when the limiting box 11 is matched with the limiting bulge 16 at the upper end of the limiting arm 7 just before the vehicle door 1 swings to 180 degrees in the process that the vehicle door 1 swings backwards from 80 degrees of opening during the opening process of the vehicle door 1; after door 1 swung to 180 degrees, buffer spring 41's compression can provide a great swing resistance to door 1 for door 1 is obstructed in the back pendulum direction, and the preceding pendulum of door 1 receives spacing of terminal spacing arch 16 on spacing arm 7 simultaneously, makes door 1 swing to 180 degrees back fore-and-aft swing by spacing, is in stable state, can not appear rocking, and then leads to door 1 impaired.

When the vehicle door 1 swings backwards from 80 degrees, the swinging process often needs the buffering action of the buffering spring 41 due to the action of strong wind, in order to enable the buffering spring 41 to have a good buffering action, the buffering spring 41 needs a larger elastic coefficient, but the larger the elastic coefficient is, the larger the buffering force is, the larger the displacement is, the larger the swinging resistance of the vehicle door 1 is, namely the closer the swinging angle of the vehicle door 1 is to 180 degrees, the larger the swinging resistance of the vehicle door 1 is, the more the vehicle door 1 is not beneficial to swinging to 180 degrees so as to be limited, so the better the buffering displacement of the buffering spring 41 is, and the better the vehicle door. The rule of the sliding distance of the first hinge shaft 30 and the second hinge shaft 31 in the corresponding guide channels designed in the invention can ensure smaller buffer displacement, and has stronger practical effect.

As shown in fig. 6, the displacement mechanism 9 includes a guide rail housing 8, a connecting slide block 17, a first rack 18, a fixed rotating shaft 19, a first gear 20, a second gear 21, a second rack 22, and a guiding sliding sleeve 24, wherein as shown in fig. 7, two sliding grooves 23 are symmetrically formed on two inner side surfaces of the guiding sliding sleeve 24, the guiding sliding sleeve 24 is slidably mounted on the corresponding first hinge housing 25, and the two sliding grooves 23 formed on the guiding sliding sleeve 24 are in sliding fit with two ends of the corresponding first hinge shaft 30; as shown in fig. 2, the guide rail shell 8 is fixedly installed in the second installation groove 5 formed in the vehicle door 1, the connecting slide block 17 is slidably installed in the guide rail shell 8, and one end of the connecting slide block 17 is fixedly connected with one end of the limiting arm 7, which is not provided with the fixing plate 13; one end of the first rack 18 is fixedly arranged at the other end of the connecting slide block 17, and the other end of the first rack 18 penetrates out of the guide rail shell 8; the fixed rotating shaft 19 is rotatably arranged in the second mounting groove 5 formed in the vehicle door 1, the first gear 20 is fixedly arranged on the fixed rotating shaft 19, and the first gear 20 is meshed with the first rack 18; the two second gears 21 are symmetrically and fixedly installed at two ends of the fixed rotating shaft 19, one ends of the two second racks 22 are symmetrically and fixedly installed on the guide sliding sleeves 24, and the two second racks 22 are meshed with the two second gears 21.

When the first hinge shaft 30 slides in the guide through groove 29 formed in the first hinge shell 25, the first hinge shaft 30 drives the guide sliding sleeve 24 to slide on the first hinge shell 25, the guide sliding sleeve 24 slides to drive the two second racks 22 to move, the two second racks 22 move to drive the two second gears 21 to rotate, the two second gears 21 rotate to drive the fixed rotating shaft 19 to rotate, the fixed rotating shaft 19 rotates to drive the first gear 20 to rotate, the first gear 20 rotates to drive the first rack 18 to slide, the first rack 18 slides to drive the connecting sliding block 17 to slide, and the connecting sliding block 17 slides to drive the limiting arm 7 to move relative to the limiting box 11; the present invention contemplates that the diameter of the first gear 20 is greater than the diameter of the second gear 21.

The ratio of the moving distance of the limiting arm 7 to the sliding distance of the guide sliding sleeve 24 is enlarged through the first gear 20 and the second gear 21, on one hand, the installation space of the hinge mechanism 10 is reduced, and meanwhile, the gap after the vehicle door 1 is opened is reduced; if the moving distance of the limiting arm 7 is in one-to-one transmission with the sliding distance of the guide sliding sleeve 24, the shortest distance between the guide channels on the first hinge shell 25 and the second hinge shell 26 is increased, and the sizes of the first hinge shell 25 and the second hinge shell 26 are also increased, so that the installation space of the hinge mechanism 10 is enlarged, and meanwhile, the gap between the opening rear door 1 and the door frame 2 of the vehicle door 1 is larger, which is not beneficial to the stability of the vehicle door 1.

On the other hand, the operation range of the first hinge shaft 30 of the hinge mechanism 10 is smaller, and a certain distance is needed between the limiting protrusions 16 in the limiting mechanism 40 for limiting, so that the labor is saved in the process of opening the vehicle door 1; therefore, the ratio of the moving distance of the limiting arm 7 to the sliding distance of the guide sliding sleeve 24 is enlarged.

As shown in fig. 10, the displacement mechanism 9 includes a guide rail housing 8, a connecting slide block 17, a mounting block 35, a pulling rope 36, a supporting shaft 37, a movable pulley 38, a mounting plate 39, and a guiding sliding sleeve 24, wherein as shown in fig. 11, two sliding grooves 23 are symmetrically formed on two inner side surfaces of the guiding sliding sleeve 24, the guiding sliding sleeve 24 is slidably mounted on the corresponding first hinge housing 25, and the two sliding grooves 23 formed on the guiding sliding sleeve 24 are slidably fitted with two ends of the corresponding first hinge shaft 30; as shown in fig. 9, the guide rail shell 8 is fixedly installed in the second installation groove 5 formed in the vehicle door 1, the connecting slide block 17 is slidably installed in the guide rail shell 8, and one end of the connecting slide block 17 is fixedly connected with one end of the limiting arm 7, which is not provided with the fixing plate 13; one end of each of the two mounting blocks 35 is symmetrically mounted at the two ends of the connecting slider 17, as shown in fig. 10 and 11, and the other end of each of the two mounting blocks 35 penetrates through the guide rail shell 8 to be in sliding fit with the guide rail shell 8; two support shafts 37 are symmetrically installed on both sides of the guide sliding sleeve 24, as shown in fig. 11, two movable pulleys 38 are rotatably installed on the two support shafts 37, an installation plate 39 is fixedly installed in the second installation groove 5 opened on the vehicle door 1, one end of two pull ropes 36 is fixedly installed on the installation plate 39, and the other ends of the two pull ropes 36 pass around the two movable pulleys 38 and are fixedly connected with the two installation blocks 35 in a one-to-one correspondence manner; the distance between the axes of the two support shafts 37 and the sliding plane of the mounting block 35 is greater than the radius of the movable pulley 38.

When the first hinge shaft 30 slides in the guide through groove 29 formed in the first hinge shell 25, the first hinge shaft drives the guide sliding sleeve 24 to slide on the first hinge shell 25, the guide sliding sleeve 24 slides to drive the two movable pulleys 38 to move, because one end of the two pull ropes 36 is fixed, and the other end of the two pull ropes passes around the two movable pulleys 38 and is fixedly connected with the two mounting blocks 35 in a one-to-one correspondence manner, when the two movable pulleys 38 move, the two pull ropes 36 are pulled, so that the two mounting blocks 35 move, the two mounting blocks 35 move to drive the connecting slide block 17 to slide, and the connecting slide block 17 slides to drive the limiting arm 7 to move relative to the limiting box 11; meanwhile, the other ends of the two pull ropes 36 pass through the movable pulley 38 and are transversely connected with the two mounting blocks 35, so that the moving distance of the guide sliding sleeve 24 is smaller than the moving distance of the connecting sliding block 17 according to the working principle of the movable pulley 38.

The mounting block 35 is located at one end of the rail housing when the door 1 is not opened, and the mounting block 35 gradually approaches the movable pulley 38 as the door 1 is opened. The distance between the axes of the two support shafts 37 and the sliding plane of the mounting block 35 is greater than the design objective of the radius of the movable pulley 38: as the mounting block 35 gradually approaches the movable pulley 38, the ratio of the moving distance of the mounting block 35 to the moving distance of the movable pulley 38 gradually decreases, and the damping displacement of the damping spring 41 during the swing of the vehicle door 1 from 80 degrees to 180 degrees is further decreased.

The invention is combined on the basis of the existing hinge and the existing limiter, so that the vehicle door 1 mechanism has the technology of being capable of being opened by 180 degrees and specifying the limiting point; first, at present, there is no similar product, as it is not possible to associate the present 180 degree hinge with the present stop to solve the problems of the present invention; secondly, the existing stopper installed on the ordinary vehicle door 1 does not have a stopper for limiting 180 degrees, the 180 degrees of the ordinary vehicle door cannot be reached, and the existing stopper cannot be used under the condition of 180 degrees.

The specific working process is as follows: when the vehicle door 1 designed by the invention is used, in the opening process, when the vehicle door 1 is just opened, a group of limiting bulges 16 at the starting end of the limiting arm 7 are matched with the rollers in the limiting box 11, the limiting box 11 limits the sliding of the limiting arm 7, so that the opening of the door 1 has a certain resistance, and the door 1 is continuously opened, the first hinge housing 25 mounted on the door 1 swings relative to the second hinge housing 26 mounted on the door frame 2, the first hinge housing 25 swings to drive the second hinge shaft 31 to swing relative to the second hinge housing 26, the second hinge shaft 31 swings to drive the second hinge arm 28 to swing, the second hinge arm 28 swings to make the fifth hinge shaft 34 slide in the guide through slot 29 formed on the second hinge housing 26, at the same time, the second hinge arm 28 swings to swing the first hinge arm 27 through the fourth hinge shaft 33, and the first hinge arm 27 swings to slide the first hinge shaft 30 in the guide channel opened on the first hinge shell 25; through the transmission of the displacement mechanism 9, the sliding of the first articulated shaft 30 can drive the connecting slide block 17 to move through the guide sliding sleeve 24, and the connecting slide block 17 slides to drive the limiting arm 7 to move relative to the limiting box 11; when the vehicle door 1 is opened to 70 degrees to 80 degrees, a group of limiting protrusions 16 positioned in the middle on the limiting arm 7 are matched with rollers in the limiting box 11, the limiting box 11 limits the sliding of the limiting arm 7, the vehicle door 1 is limited at the angle, the vehicle door 1 stops swinging backwards for people to go up and down, and the process is the same as that of the vehicle door 1 used by the traditional engineering vehicle. After the door is opened by 70 degrees to 80 degrees, if a large pushing force is provided, the vehicle door 1 continues to swing backwards to 180 degrees, and the buffer spring 41 plays a role in buffering the swing of the vehicle door 1 in the swinging process; under the angle, a group of limiting bulges 16 at the tail end of the limiting arm 7 are matched with the rollers in the limiting box 11, the limiting box 11 has a limiting effect on the sliding of the limiting arm 7, the vehicle door 1 is parallel to a compartment, and the continuous influence on the vehicle door 1 caused by the blowing of wind at the moment can be avoided; and the door 1 is limited by the limiting mechanism 40 at the angle, so that the door 1 is prevented from shaking under the action of wind and being damaged.

Claims

1. A kind of vehicle door mechanism resisting the strong wind, it includes door, door frame, articularly connects the stop gear, wherein the inner frame surface of one end of door frame has two first mounting grooves to mount the articularly connects the stop gear symmetrically up and down, the terminal surface of one end of door has two second mounting grooves to mount articularly connects the stop gear symmetrically up and down, the door is mounted on door frame through two articularly connecting the stop gear distributed up and down symmetrically, and install the sealing strip playing the sealing function to the car in the door and door frame; the method is characterized in that: the two hinged limiting mechanisms are respectively composed of a hinged mechanism and a limiting mechanism; the door is hinged and installed on the door frame through a hinge mechanism, and the hinge mechanism can allow the door to be opened 180 degrees relative to the door frame; the limiting mechanism is arranged in a second mounting groove formed in the door, and the limiting mechanism controls the door to form 3 different limiting points in the opening and closing process; the two hinge mechanisms are in transmission connection with the corresponding limiting mechanisms through a displacement mechanism respectively, and the displacement mechanism has a displacement amplification function;

the hinge mechanism comprises a first hinge shell, a second hinge shell, a first hinge arm and a second hinge arm, wherein two guide through grooves which are symmetrically distributed are respectively formed in two side surfaces of the first hinge shell and the second hinge shell, the first hinge shell is fixedly installed in a second installation groove formed in the vehicle door, and the second hinge shell is fixedly installed in a first installation groove formed in the door frame; two ends of a first hinge arm are respectively hinged and installed in the first installation shell and the second installation shell through a hinge shaft, and two ends of a hinge shaft connected with the first installation shell of the first hinge arm are in sliding fit with a guide barrel groove formed in the first installation shell; two ends of a second hinge arm are respectively hinged and installed in the first installation shell and the second installation shell through a hinge shaft, and two ends of a hinge shaft connected with the second installation shell of the second hinge arm are in sliding fit with a guide barrel groove formed in the second installation shell; the first hinge arm and the second hinge arm are in staggered position hinge connection;

the limiting mechanism comprises a limiting arm, a limiting box, a buffer plate, limiting bulges and a buffer spring, wherein three groups of limiting bulges are arranged on the limiting arm along the length direction; the buffer plate is slidably mounted on the limiting arm along the length direction of the limiting arm, and a buffer spring is mounted between the buffer plate and one end of the limiting arm far away from the limiting shell; the distance between two groups of limiting protrusions close to the fixing plate in the three groups of limiting protrusions on the limiting arm is smaller than the distance between two groups of limiting protrusions far away from the fixing plate;

a displacement mechanism consisting of a gear and a rack is arranged between the limiting arm and the first hinged shell, and the moving distance of the limiting arm is larger than that of the first mounting shell through the diameter change of the two coaxial gears in the displacement mechanism.

2. A vehicle door mechanism against high winds according to claim 1, characterized in that: two ends of a third hinge shaft are fixedly arranged on two side surfaces in the second hinge shell, two ends of a first hinge shaft respectively penetrate through two guide through grooves formed in the first hinge shell to be in sliding fit with the guide through grooves, and two ends of the first hinge shaft are respectively arranged on the first hinge shaft and the third hinge shaft through rotating fit; two ends of a second hinge shaft are fixedly arranged on two side surfaces in the first hinge shell, two ends of a fifth hinge shaft respectively penetrate through two guide through grooves formed in the second hinge shell to be in sliding fit with the guide through grooves, and two ends of the second hinge shaft are respectively arranged on the second hinge shaft and the fifth hinge shaft through rotating fit; the first hinge arm and the second hinge arm are hinged at staggered positions through a fourth hinge shaft.

3. A vehicle door mechanism against high winds according to claim 1, characterized in that: three spacing archs of group on the above-mentioned spacing arm, two spacing protruding longitudinal symmetry in every spacing arch of group distribute, open symmetrically on the both sides face of spacing arm has two guide slots, the one end fixed mounting of spacing arm has the fixed plate, install two guide blocks on two medial surfaces of buffer board symmetrically, the buffer board is installed on spacing arm through the sliding fit of two guide blocks and two guide slots, buffer spring's both ends fixed mounting is on buffer board and fixed plate respectively, the quad slit in the middle of the buffer board allows spacing arch on the spacing arm to pass.

4. A vehicle door mechanism against strong wind according to claim 2 or 3, characterized in that: the displacement mechanism comprises a guide rail shell, a connecting slide block, a first rack, a fixed rotating shaft, a first gear, a second rack and a guide sliding sleeve, wherein two sliding chutes are symmetrically formed in two inner side surfaces of the guide sliding sleeve; the guide rail shell is fixedly arranged in a second mounting groove formed in the vehicle door, the connecting sliding block is slidably arranged in the guide rail shell, and one end of the connecting sliding block is fixedly connected with one end of the limiting arm, which is not provided with the fixing plate; one end of the first rack is fixedly arranged at the other end of the connecting slide block, and the other end of the first rack penetrates out of the guide rail shell; the fixed rotating shaft is rotatably arranged in a second mounting groove formed in the vehicle door, the first gear is fixedly arranged on the fixed rotating shaft, and the first gear is meshed with the first rack; two second gears are symmetrically and fixedly installed at two ends of the fixed rotating shaft, one ends of two second racks are symmetrically and fixedly installed on the guide sliding sleeve, and the two second racks are meshed with the two second gears.

5. A vehicle door mechanism against strong wind according to claim 2 or 3, characterized in that: the displacement mechanism comprises a guide rail shell, a connecting slide block, a mounting block, a pull rope, a support shaft, a movable pulley, a mounting plate and a guide sliding sleeve, wherein two sliding grooves are symmetrically formed in two inner side surfaces of the guide sliding sleeve; the guide rail shell is fixedly arranged in a second mounting groove formed in the vehicle door, the connecting sliding block is slidably arranged in the guide rail shell, and one end of the connecting sliding block is fixedly connected with one end of the limiting arm, which is not provided with the fixing plate; one ends of the two mounting blocks are symmetrically mounted at two ends of the connecting slide block, and the other ends of the two mounting blocks penetrate through the guide rail shell to be in sliding fit with the guide rail shell; the two support shafts are symmetrically arranged on two sides of the guide sliding sleeve, the two movable pulleys are rotatably arranged on the two support shafts, the mounting plate is fixedly arranged in a second mounting groove formed in the vehicle door, one ends of the two pull ropes are fixedly arranged on the mounting plate, and the other ends of the two pull ropes are fixedly connected with the two mounting blocks in a one-to-one correspondence manner by bypassing the two movable pulleys; the distance between the axes of the two support shafts and the sliding plane of the mounting block is larger than the radius of the movable pulley.