CN111993971A - Three-person bus lifting ring handrail based on non-Newtonian fluid protection - Google Patents
Three-person bus lifting ring handrail based on non-Newtonian fluid protection Download PDFInfo
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- CN111993971A CN111993971A CN202010702526.XA CN202010702526A CN111993971A CN 111993971 A CN111993971 A CN 111993971A CN 202010702526 A CN202010702526 A CN 202010702526A CN 111993971 A CN111993971 A CN 111993971A
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- handrail
- newtonian fluid
- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/02—Arrangements or adaptations of other passenger fittings, not otherwise provided for of hand grips or straps
- B60N3/026—Arrangements or adaptations of other passenger fittings, not otherwise provided for of hand grips or straps characterised by the fixing means
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Abstract
The invention discloses a non-Newtonian fluid protection-based three-person bus hanging ring handrail, which comprises a main handrail frame, wherein the top end of the outer part of the main handrail frame is fixedly connected with an installation frame, the middle position of the installation frame is rotationally connected with a non-Newtonian fluid coupling mechanism, the middle position of the bottom of the main handrail frame is fixedly connected with a main handle, the inner part of a moving track is slidably connected with a transmission slide block, the outer side of the transmission slide block is fixedly connected with a movable holding rod mechanism, and the bottom of the transmission slide block is fixedly connected with the bottom end of the inner part of the moving track through an extrusion spring. This three people use bus rings handrail based on protection of non-Newtonian fluid has reached and has realized that a rings handrail three people uses, guarantees the stability of the handheld rings handrail of passenger, promotes the purpose of the support nature that the passenger supported.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a three-person bus lifting ring handrail based on non-Newtonian fluid protection.
Background
A bus refers to a motor vehicle which carries passengers to go out on an urban road along a fixed route with or without fixed shift time. The general shape is square, and the window is provided with a seat.
If the Chinese invention discloses the number: CN 109367456A's a double handrail for bus that can multiform switch, including two connecting plates, two the annular piece that fixedly connected with level was placed between the connecting plate, the first magnetic element of bottom fixedly connected with of annular piece, the draw-in groove has been seted up to one side that two connecting plates are close to each other, has the connecting rod through bearing swing joint between two draw-in grooves, the ring channel has been seted up on the surface of connecting rod, the ring channel be fixed with the annular piece on the surface. The invention is superior to the comparison scheme when in use, a user can hold the handrail by one person, so that the first arc-shaped section or the second arc-shaped section is positioned at the lowest end after rotating, and can hold the large arc-shaped notch and the small arc-shaped notch which are horizontally arranged on the first arc-shaped section and the second arc-shaped section by two hands of one person, thereby being more stable, being used by two persons on a bus, being convenient to use, being more beautiful and being capable of being operated in various ways.
Also, for example, the Chinese invention publication number is: CN111216613A is a handrail design for preventing bus sudden braking by using non-Newtonian fluid, comprising a clamp, a cavity component, the non-Newtonian fluid, a matching part and a handrail component, wherein the clamp is fixedly connected with the whole handrail design on a holding rod of a bus through bolt connection; the cavity subassembly is fixed in the anchor clamps lower extreme, the handrail subassembly is fixed in cavity subassembly lower extreme, through anchor clamps, cavity subassembly and handrail, under the car normally traveles, can guarantee that the passenger grabs and holds the degree of freedom, under the car emergency braking condition, can provide a fixed, firm handrail for the passenger to can reach and stand steadily to hold up, guarantee the effect of self safety.
Traditional bus handrail adopts one person or two for the handle, and when the bus district personnel of standing were too much, a handle can only supply two personnel to use at most, can not realize three people's commonalities to the personnel handrail height to different heights can not adjust in a flexible way, reduces the comfort level that personnel held to holding.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a non-Newtonian fluid protection-based three-person bus hanging ring handrail, and solves the problems that three persons can not share one handle and the heights of the handrails of the persons with different heights can not be flexibly adjusted.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a three-person bus hanging ring handrail based on non-Newtonian fluid protection comprises a main handrail frame, wherein a mounting frame is fixedly connected to the top end of the outer portion of the main handrail frame, a non-Newtonian fluid coupling mechanism is connected to the middle position of the mounting frame in a rotating manner, mounting clamping blocks are symmetrically and fixedly connected to the top end of the outer portion of the non-Newtonian fluid coupling mechanism, mounting bolts are in threaded connection with positions, close to the upper portion, of the mounting clamping blocks, a main handle is fixedly connected to the middle position of the bottom of the main handrail frame, lateral supporting plates are fixedly connected to the vertical positions of the inner side wall of the two sides of the main handrail frame, moving tracks are arranged at positions, close to the back, of the lateral supporting plates, transmission sliders are connected to the inner portions of the moving tracks in a sliding manner, movable holding rod mechanisms are fixedly connected to the outer sides of the, the lifting ring handrail is used by three people.
Preferably, the inside at the main handrail frame back and the position that is close to the outside have seted up and have accomodate the groove, the left side at the main handrail frame back is rotated and is connected with inferior handrail frame, the bottom fixedly connected with time handle of inferior handrail frame.
Preferably, the firm magnetic stripe of left side fixedly connected with at the inferior handrail frame back, the positive right side fixedly connected with restriction fixture block of main handrail frame, restriction fixture block corresponds the joint with inferior handrail frame. The stability of the second handle during use is guaranteed, passengers are prevented from being injured by the clamp when the bus shakes, and the safety of the bus during running is improved.
Preferably, the side supporting plates are provided with adjusting slots at equal intervals and evenly at vertical positions close to the front side.
Preferably, the movable holding rod mechanism comprises a third holding rod, two external sides of the third holding rod are fixedly connected with the transmission sliding block, a movable rail is arranged at the top of the third holding rod, and two internal sides of the movable rail are slidably connected with the movable sliding block.
Preferably, the top of the movable sliding block is rotatably connected with a top rotating plate, the top rotating plate is rotatably connected with a position close to the middle of the third holding rod, and an auxiliary spring is fixedly connected inside the movable track and in the middle of the movable sliding block.
Preferably, the top of the top rotating plate is fixedly connected with an anti-pinch rubber pad.
Preferably, the top is changeed the board outside and is close to positive position fixedly connected with restriction inserted block, restriction inserted block corresponds the joint with the regulation slot.
Preferably, the non-newtonian fluid coupling mechanism includes an outer sealing rod, a driving coupling shaft penetrates through and is rotatably connected to the center position inside the outer sealing rod, and the outer side of the driving coupling shaft is fixedly connected with the mounting frame.
Preferably, a driving stirring block is fixedly connected to the outside of the driving connecting shaft, and a non-newtonian fluid is filled in a position between the driving connecting shaft and the outer sealing rod. The stability of the hand-held hanging ring handrail of the passenger is guaranteed when the bus is braked emergently, and meanwhile, the turning adjustment of the hanging ring handrail can be slowly realized, so that the support performance of the passenger support is improved.
The working principle is as follows: the mounting clamping blocks are sleeved on the bus support rods through rotating the mounting bolts, stable fixing is achieved, the main handrail frame is hung in the air along the vertical direction, and when the bus handrail frame is used by a single person, the main handrail can be held by a hand; when the two persons use the handrail, the secondary handrail frame is rotated out of the accommodating groove, the limiting clamping block is clamped and fixed with the secondary handrail frame, the secondary handrail frame and the main handrail frame are in a parallel state, and the person can hold the main handle and the secondary handle by hands; when the handrail is used by three people, under the state that the secondary handrail frame is opened, a person can hold the third holding rod tightly, the downward pressure of fingers drives the top rotating plate to rotate by taking the movable sliding block as the circle center until the top rotating plate is in a parallel state, and the limiting insertion block is clamped and fixed with the adjusting slot at the moment, so that the use of one handrail by three people is realized; when the third holding rod is not used by people, the jacking and rotating plate is in an inclined state under the action of the tensile force of the auxiliary spring, so that the separation of the insertion block and the adjusting slot is limited, meanwhile, under the action of the extrusion elastic force of the extrusion spring, the movable holding rod mechanism moves to the uppermost part of the main handrail frame, and a user can adjust the insertion block to be clamped with the adjusting slot at a proper height position according to the self height requirement, so that the flexible adjustment of the height position of the handrail is realized; when the sudden braking appears in the bus, the rings handrail produces and rocks fast to the drive stirring piece produces the striking with the inside non-Newton's fluid of main handrail frame, under the supporting force effect of non-Newton's fluid, can support the rings handrail that rocks in the twinkling of an eye, and the passenger can be stable when guaranteeing the brake holds the rings handrail, slowly rotates the rings handrail simultaneously, also can realize the rings handrail and turn to the regulation.
(III) advantageous effects
The invention provides a three-person bus hanging ring handrail based on non-Newtonian fluid protection. The method has the following beneficial effects:
(1) the three-person bus lifting ring handrail based on non-Newtonian fluid protection comprises a main grip and a secondary grip, and one lifting ring handrail can be used by two persons.
(2) The three-person bus lifting ring handrail based on non-Newtonian fluid protection, the main grip, the secondary grip and the movable holding rod mechanism realize three-person use of one lifting ring handrail.
(3) This three people use bus hanging ring handrail based on non-Newtonian fluid protection, top commentaries on classics board, restriction inserted block, auxiliary spring and regulation slot realize the nimble regulation of third holding rod vertical height position, make things convenient for different height passengers' use.
(4) This three people use bus rings handrail based on protection of non-Newtonian fluid, the position packing between drive connecting shaft and the external seal pole has non-Newtonian fluid, realizes that the bus when emergency braking, guarantees the stability of the handheld rings handrail of passenger, can slowly realize rings handrail steering adjustment simultaneously, promotes the support nature that the passenger supported.
(5) This three people use bus rings handrail based on protection of non-Newtonian fluid, but restriction fixture block joint restriction secondary handrail frame guarantees the stability when the second handle uses, presss from both sides when avoiding the vehicle to rock and hinders the passenger, the purpose of security when promoting the bus and traveling.
(6) This three people use bus hanging ring handrail based on non-Newtonian fluid protection accomodates groove, inferior handrail frame and firm magnetic stripe, realizes accomodating and extending of inferior handle, and the magnet inter attraction that stabilizes the magnetic stripe simultaneously and accomodate the inslot and survey guarantees the stability when inferior handle is accomodate.
(7) This three people use bus rings handrail based on protection of non-Newtonian fluid, extrusion spring and auxiliary spring guarantee to be in the top position when the third holding rod does not use, to other passengers' influence when avoiding not using.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the backside of the present invention;
FIG. 3 is a cross-sectional view of the interior of the main armrest frame in its entirety according to the present invention;
FIG. 4 is a schematic structural view of the movable grip mechanism of the present invention;
FIG. 5 is a schematic structural diagram of a non-Newtonian fluid coupling mechanism of the present invention.
In the figure: the device comprises a main handrail frame 1, a mounting frame 2, a non-Newtonian fluid shaft connecting mechanism 3, an external sealing rod 301, a driving shaft connecting 302, a driving stirring block 303, a mounting clamping block 4, a mounting bolt 5, a main grip 6, a side supporting plate 7, a moving track 8, a transmission slide block 9, a movable grip rod mechanism 10, a third grip rod 101, a moving track 102, a moving slide block 103, a top rotating plate 104, an anti-pinch rubber pad 105, a limiting insert 106, an auxiliary spring 107, an extrusion spring 11, a receiving groove 12, a handrail frame 13 times, a grip 14 times, a stabilizing magnetic stripe 15, a limiting fixture block 16 and an adjusting slot 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1-3, the present invention provides a technical solution: a three-person bus hanging ring handrail based on non-Newtonian fluid protection comprises a main handrail frame 1, wherein the top end of the outer part of the main handrail frame 1 is fixedly connected with a mounting frame 2, the middle position of the mounting frame 2 is rotationally connected with a non-Newtonian fluid coupling mechanism 3, the top end of the outer part of the non-Newtonian fluid coupling mechanism 3 is symmetrically and fixedly connected with mounting clamping blocks 4, the positions, close to the upper part, of the mounting clamping blocks 4 are in threaded connection with mounting bolts 5, the middle position of the bottom of the main handrail frame 1 is fixedly connected with a main handle 6, the vertical positions of the inner side walls at the two sides of the main handrail frame 1 are both fixedly connected with side supporting plates 7, the positions, close to the back surface, of the side supporting plates 7 are provided with moving tracks 8, the inner parts of the moving tracks 8 are in sliding connection with transmission sliders 9, the outer sides of the transmission sliders 9 are, the lifting ring handrail is used by three people.
A storage groove 12 is arranged in the back of the main handrail frame 1 and close to the outer side, a secondary handrail frame 13 is rotatably connected to the left side of the back of the main handrail frame 1, and a secondary grip 14 is fixedly connected to the bottom of the secondary handrail frame 13.
The left side of the back of the secondary handrail frame 13 is fixedly connected with a stable magnetic strip 15, the right side of the front of the main handrail frame 1 is fixedly connected with a limiting clamping block 16, and the limiting clamping block 16 is correspondingly clamped with the secondary handrail frame 13. The stability of the second handle during use is guaranteed, passengers are prevented from being injured by the clamp when the bus shakes, and the safety of the bus during running is improved.
The side supporting plate 7 is provided with adjusting slots 17 at equal intervals and in the vertical position close to the front side.
Example two
As shown in fig. 4, on the basis of the first embodiment, the present invention provides a technical solution: the utility model provides a three people use bus hanging ring handrail based on protection of non-Newtonian fluid, activity holding rod mechanism 10 includes third holding rod 101, and the outside both sides of third holding rod 101 all with transmission slider 9 fixed connection, movable rail 102 has been seted up at the top of third holding rod 101, and the equal sliding connection in both sides of movable rail 102 has movable slider 103.
The tops of the movable sliding blocks 103 are rotatably connected with a top rotating plate 104, the top rotating plate 104 is rotatably connected with the middle position of the third holding rod 101, and the inner part of the movable track 102 and the position of the middle of the movable sliding blocks 103 are fixedly connected with an auxiliary spring 107.
The top of the top rotating plate 104 is fixedly connected with an anti-pinch rubber pad 105.
The position of the outer side of the top rotating plate 104 and close to the front face is fixedly connected with a limiting insertion block 106, and the limiting insertion block 106 is correspondingly clamped with the adjusting slot 17.
EXAMPLE III
As shown in fig. 5, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: the utility model provides a three people use bus hanging ring handrail based on protection of non-Newtonian fluid, non-Newtonian fluid shaft connecting mechanism 3 includes external sealing rod 301, and the inside central point of external sealing rod 301 puts and runs through and rotate and be connected with drive connecting axle 302, and the outside and the mounting bracket 2 fixed connection of drive connecting axle 302.
The outer part of the driving connecting shaft 302 is fixedly connected with a driving stirring block 303, and the position between the driving connecting shaft 302 and the outer sealing rod 301 is filled with non-Newtonian fluid. The stability of the hand-held hanging ring handrail of the passenger is guaranteed when the bus is braked emergently, and meanwhile, the turning adjustment of the hanging ring handrail can be slowly realized, so that the support performance of the passenger support is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a three people use bus hanging ring handrail based on protection of non-Newtonian fluid, includes main handrail frame (1), its characterized in that: the top end of the outside of the main handrail frame (1) is fixedly connected with a mounting frame (2), the middle position of the mounting frame (2) is rotatably connected with a non-Newtonian fluid coupling mechanism (3), the top end of the outside of the non-Newtonian fluid coupling mechanism (3) is symmetrically and fixedly connected with mounting clamping blocks (4), the position of the mounting clamping blocks (4) close to the upper part is in threaded connection with mounting bolts (5), the middle position of the bottom of the main handrail frame (1) is fixedly connected with a main handle (6), the vertical positions of the inner side wall of the two sides of the main handrail frame (1) are both fixedly connected with side supporting plates (7), the position of the side supporting plates (7) close to the back is provided with a moving track (8), the inside of the moving track (8) is in sliding connection with a transmission slide block (9), and the outside of the transmission slide block (, the bottom of the transmission sliding block (9) is fixedly connected with the bottom end inside the movable track (8) through an extrusion spring (11).
2. The non-Newtonian fluid protection based three-person bus lifting ring handrail as claimed in claim 1, wherein: the inside at main handrail frame (1) back just is close to the position in the outside and has seted up and has accomodate groove (12), the left side at main handrail frame (1) back is rotated and is connected with inferior handrail frame (13), the bottom fixedly connected with of inferior handrail frame (13) is time handle (14).
3. The non-Newtonian fluid protection based three-person bus lifting ring handrail as claimed in claim 2, wherein: the left side fixedly connected with at inferior handrail frame (13) back stabilizes magnetic stripe (15), main handrail frame (1) positive right side fixedly connected with restriction fixture block (16), restriction fixture block (16) correspond the joint with inferior handrail frame (13).
4. The non-Newtonian fluid protection based three-person bus lifting ring handrail as claimed in claim 1, wherein: the side supporting plates (7) are provided with adjusting slots (17) which are uniformly arranged at equal intervals and close to the vertical position of the front surface.
5. The non-Newtonian fluid protection based three-person bus lifting ring handrail as claimed in claim 4, wherein: the movable holding rod mechanism (10) comprises a third holding rod (101), the two sides of the outside of the third holding rod (101) are fixedly connected with the transmission sliding block (9), a movable rail (102) is arranged at the top of the third holding rod (101), and the two sides of the inside of the movable rail (102) are both slidably connected with the movable sliding block (103).
6. The non-Newtonian fluid protection based three-person bus lifting ring handrail as claimed in claim 5, wherein: the top of the movable sliding block (103) is rotatably connected with a top rotating plate (104), the top rotating plate (104) is rotatably connected with the position close to the middle of the third holding rod (101), and the position inside the movable track (102) and located in the middle of the movable sliding block (103) is fixedly connected with an auxiliary spring (107).
7. The non-Newtonian fluid protection based three-person bus lifting ring handrail as claimed in claim 6, wherein: the top of the top rotating plate (104) is fixedly connected with an anti-pinch rubber pad (105).
8. The non-Newtonian fluid protection based three-person bus lifting ring handrail of claim 7, wherein: the position fixedly connected with of top commentaries on classics board (104) outside and being close to the front limits inserted block (106), restriction inserted block (106) and regulation slot (17) correspond the joint.
9. The non-Newtonian fluid protection based three-person bus lifting ring handrail as claimed in claim 1, wherein: non-Newtonian fluid shaft connecting mechanism (3) includes external sealing pole (301), the inside central point of external sealing pole (301) puts and runs through and rotate and is connected with drive shaft connecting (302), the outside and mounting bracket (2) fixed connection of drive shaft connecting (302).
10. The non-Newtonian fluid protection based three-person bus sling handrail of claim 9, wherein: the outer portion of the driving connecting shaft (302) is fixedly connected with a driving stirring block (303), and a non-Newtonian fluid is filled between the driving connecting shaft (302) and the outer sealing rod (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010702526.XA CN111993971B (en) | 2020-07-20 | 2020-07-20 | Three-person bus lifting ring handrail based on non-Newtonian fluid protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010702526.XA CN111993971B (en) | 2020-07-20 | 2020-07-20 | Three-person bus lifting ring handrail based on non-Newtonian fluid protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111993971A true CN111993971A (en) | 2020-11-27 |
| CN111993971B CN111993971B (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010702526.XA Expired - Fee Related CN111993971B (en) | 2020-07-20 | 2020-07-20 | Three-person bus lifting ring handrail based on non-Newtonian fluid protection |
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| CN201154679Y (en) * | 2007-12-27 | 2008-11-26 | 刘亚楠 | Convenient handle |
| KR20100003527U (en) * | 2008-09-24 | 2010-04-01 | 손태양 | A multistage handle |
| CN203511389U (en) * | 2013-10-08 | 2014-04-02 | 刘睿璇 | Novel bus handrail |
| CN203511390U (en) * | 2013-11-15 | 2014-04-02 | 石盛华 | Novel bus armrest for quick escape |
| CN104175922A (en) * | 2013-05-27 | 2014-12-03 | 湖北文理学院 | Handle for bus |
| FR3010013A1 (en) * | 2013-09-05 | 2015-03-06 | Foued Rhziel | HOLDING AND FIXING DEVICE, PERSONAL AND REMOVABLE, TO HOLD AT A SUPPORT BAR |
| CN204547869U (en) * | 2015-04-20 | 2015-08-12 | 徐卫东 | A kind of adjustable spiral handrail of bus |
| CN204623236U (en) * | 2015-04-29 | 2015-09-09 | 江西科技学院 | A kind of bus handle |
| KR200484586Y1 (en) * | 2016-06-14 | 2017-09-26 | 지민서 | dual handle for vehicle |
| CN107259773A (en) * | 2017-08-11 | 2017-10-20 | 池定如 | A kind of Portable bus handle and Bag handle dual-purpose apparatus |
| CN109159726A (en) * | 2018-08-20 | 2019-01-08 | 鲁陈 | The anti-bus ring of bringing to a halt of one kind |
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2020
- 2020-07-20 CN CN202010702526.XA patent/CN111993971B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201154679Y (en) * | 2007-12-27 | 2008-11-26 | 刘亚楠 | Convenient handle |
| KR20100003527U (en) * | 2008-09-24 | 2010-04-01 | 손태양 | A multistage handle |
| CN104175922A (en) * | 2013-05-27 | 2014-12-03 | 湖北文理学院 | Handle for bus |
| FR3010013A1 (en) * | 2013-09-05 | 2015-03-06 | Foued Rhziel | HOLDING AND FIXING DEVICE, PERSONAL AND REMOVABLE, TO HOLD AT A SUPPORT BAR |
| CN203511389U (en) * | 2013-10-08 | 2014-04-02 | 刘睿璇 | Novel bus handrail |
| CN203511390U (en) * | 2013-11-15 | 2014-04-02 | 石盛华 | Novel bus armrest for quick escape |
| CN204547869U (en) * | 2015-04-20 | 2015-08-12 | 徐卫东 | A kind of adjustable spiral handrail of bus |
| CN204623236U (en) * | 2015-04-29 | 2015-09-09 | 江西科技学院 | A kind of bus handle |
| KR200484586Y1 (en) * | 2016-06-14 | 2017-09-26 | 지민서 | dual handle for vehicle |
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| CN109159726A (en) * | 2018-08-20 | 2019-01-08 | 鲁陈 | The anti-bus ring of bringing to a halt of one kind |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111993971B (en) | 2021-12-03 |
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