CN117262033A - Support rod and automobile with same - Google Patents
Support rod and automobile with same Download PDFInfo
- Publication number
- CN117262033A CN117262033A CN202311257391.0A CN202311257391A CN117262033A CN 117262033 A CN117262033 A CN 117262033A CN 202311257391 A CN202311257391 A CN 202311257391A CN 117262033 A CN117262033 A CN 117262033A
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- China
- Prior art keywords
- damping
- cylinder body
- inner cylinder
- friction unit
- rod
- Prior art date
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- 238000013016 damping Methods 0.000 claims abstract description 162
- 230000005540 biological transmission Effects 0.000 claims abstract description 88
- 210000001503 joint Anatomy 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/12—Parts or details thereof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/30—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing of extensible, e.g. telescopic, construction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Dampers (AREA)
Abstract
The invention relates to the technical field of automobile accessories and discloses a supporting rod and an automobile with the supporting rod, wherein a first inner cylinder body is arranged in a first outer cylinder body, one end of the first outer cylinder body and one end of the first inner cylinder body are respectively fixed on a first fixing piece, a damping assembly comprises a damping shell, a pre-tightening elastic piece, a friction unit and a rotating nut, at least one end of the rotating nut is in butt joint with the friction unit through the pre-tightening elastic piece, the damping shell is connected with one end, far away from the first fixing piece, of the first inner cylinder body, and the damping shell, the pre-tightening elastic piece, the friction unit, the rotating nut and the first inner cylinder body are axially communicated to form a damping transmission channel; the screw drive rod is installed in the second urceolus, and the one end of second outer barrel and the one end of screw drive rod are fixed in the second mounting, and the screw drive rod is installed in damping transmission passageway, screw drive rod and rotatory nut screw drive connection. The supporting rod and the automobile thereof reduce the influence of environmental factors, automatically compensate abrasion and improve damping stability.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to a supporting rod and an automobile with the supporting rod.
Background
At present, most of the mechanical rods of the stay bars adopt compressed gas as damping or undamped structures, and the telescopic stroke of the mechanical rods is not linear enough, the damping effect is unstable, the damping attenuation is large, and the damping force is difficult to preset due to the influence of factors such as temperature, environment and the like. At present, part of damping structure transmission structure is complex, resulting in high production cost and after-sale cost.
Disclosure of Invention
Aims at solving at least one of the technical problems existing in the prior art. The invention provides a support rod and an automobile thereof, which reduce the influence of environmental factors on a damping component, realize automatic compensation abrasion, improve damping stability, finely adjust damping force, reduce damping adjustment operation difficulty, have simple integral structure and reduce production cost.
In order to achieve the above object, the present invention provides a support bar, including a first cylinder, a second cylinder, and an elastic driving member extending in an axial direction, both ends of the elastic driving member being connected to the first cylinder and the second cylinder, respectively;
the first cylinder comprises a first fixing piece, a first outer cylinder, a first inner cylinder and a damping assembly, wherein the first inner cylinder is installed in the first outer cylinder, one end of the first inner cylinder and one end of the first outer cylinder are respectively fixed on the first fixing piece, the damping assembly comprises a damping shell, a pre-tightening elastic piece, a friction unit and a rotating nut, the pre-tightening elastic piece, the friction unit and the rotating nut are respectively installed in the damping shell, at least one end of the rotating nut is in butt joint with the friction unit through the pre-tightening elastic piece, the damping shell is connected to one end, far away from the first fixing piece, of the first inner cylinder, and the damping shell, the pre-tightening elastic piece, the friction unit, the rotating nut and the first inner cylinder are axially communicated to form a damping transmission channel;
the second cylinder comprises a second fixing piece, a second outer cylinder body and a threaded transmission rod, wherein the threaded transmission rod is installed in the second outer cylinder body, one end of the second outer cylinder body and one end of the threaded transmission rod are fixed on the second fixing piece, the threaded transmission rod is installed in the damping transmission channel, and the threaded transmission rod is in threaded transmission connection with the rotating nut.
Preferably, a resistance friction surface abutting against the rotating nut is arranged on one side, facing the rotating nut, of the friction unit, and the resistance friction surface and the rotating nut rotate relatively through the threaded transmission rod.
Preferably, the friction unit comprises a friction plate and a positioning plate, and the friction plate is positioned between the rotating nut and the positioning plate.
As the preferable scheme, rotatory nut includes plastics nut body and metal covering, the screw thread transfer line is the metal material, plastics nut body with screw thread transfer line screw thread transmission connects, the metal covering at least cladding in the nut body towards the tip of friction unit one side, the metal covering with friction unit butt.
As the preferred scheme, damping shell includes damping shell main part and damping lid, the damping lid with first inner tube body connect respectively in damping shell main part's both ends, the damping lid is equipped with the opening orientation damping shell's first spacing chamber, the pretightning force elastic component install in first spacing intracavity, damping shell main part is equipped with the spacing chamber of second, friction unit and swivel nut install respectively in the spacing intracavity of second, first spacing chamber with the spacing chamber axial intercommunication of second, the damping lid stretches into the spacing chamber of second forms pretightning force protection part, pretightning force protection part orientation friction unit is equipped with pretightning force protection face, pretightning force protection face with friction unit is in axial clearance fit.
As a preferable scheme, the inner wall of the second limiting cavity protrudes radially towards one end of the first inner cylinder body to form a reinforcing platform, and the reinforcing platform is located between the damping component and the first inner cylinder body.
As a preferable scheme, one side of the reinforcing platform facing the first inner cylinder body is provided with a plug-in groove, one end of the first inner cylinder body facing the damping shell is provided with a connecting cylinder end and a travel limiting part protruding inwards in the radial direction, one end of the threaded transmission rod, which is far away from the second fixing part, is provided with a radial protruding limiting block, the diameter of the protruding limiting block is larger than that of the travel limiting part, and the connecting cylinder end is connected with the plug-in groove.
Preferably, the inner side of the reinforcing platform facing the end of the first inner cylinder body is provided with a reinforcing extension arm, the connecting cylinder end and the reinforcing extension arm are provided with a connecting overlapping area, and the reinforcing extension arm is connected to the travel limiting part.
As a preferable scheme, a supporting and limiting cavity is formed between the second outer cylinder body and the first inner cylinder body, the elastic driving piece is installed in the supporting and limiting cavity, and two ends of the elastic driving piece are respectively abutted to the first cylinder body and the second cylinder body.
The utility model provides an automobile, includes automobile body, tail door and supporting component, supporting component include electric drive pole and the bracing piece, the tail door articulated in the automobile body, the bracing piece with electric drive pole's one end respectively with the automobile body coupling, the bracing piece with electric drive pole's the other end respectively with the tail door is connected, the bracing piece with electric drive pole is located respectively the relative both sides of tail door.
Compared with the prior art, the supporting rod and the automobile thereof have the beneficial effects that: the two ends of the elastic driving piece are respectively connected with the first cylinder body and the second cylinder body, the first cylinder body and the second cylinder body relatively slide, and when the whole length of the supporting rod is prolonged, the elastic driving piece provides a supporting function. One end of the first outer cylinder body and one end of the first inner cylinder body are connected to the first fixing piece, and the damping component is connected to one end of the first inner cylinder body, which is far away from the first fixing piece, so that the first outer cylinder body, the first inner cylinder body, the first fixing piece and the damping component form a first whole. The second barrel comprises a second fixing piece, a second outer barrel and a threaded transmission rod, the threaded transmission rod is installed in the second outer barrel, a movable space of a first inner barrel and a damping component is formed between the periphery of the threaded transmission rod and the second outer barrel, and one end of the second outer barrel and one end of the threaded transmission rod are fixed on the second fixing piece to form a second whole. The damping assembly comprises a damping shell, a pre-tightening elastic piece, a friction unit and a rotating nut, wherein the pre-tightening elastic piece, the friction unit and the rotating nut are arranged in the damping shell, the integrity of the damping assembly is improved, the pre-tightening elastic piece, the friction unit and the rotating nut are kept in the damping shell when the damping effect is formed, and the operation stability of the damping effect of the support rod is improved. The damping shell body, the pretightening force elastic piece, the friction unit, the rotating nut and the first inner cylinder body are communicated along the axial direction to form a damping transmission channel, the threaded transmission rod is installed in the damping transmission channel, the threaded transmission rod is in threaded transmission connection with the rotating nut, the first cylinder body and the second cylinder body relatively slide, when the whole support rod is lengthened, the rotating nut is in threaded connection with the threaded transmission rod, the threaded transmission rod moves towards the axial direction far away from the first fixing piece, the rotating nut rotates by taking the threaded transmission rod as a rotating shaft, the pretightening force elastic piece continuously applies extrusion acting force to the rotating nut and the friction unit in the axial direction, one end of the rotating nut is in butt joint with the friction unit, rotating resistance is generated between the friction unit and the rotating nut, and the support rod is further lengthened to generate damping action. The friction unit and the pretightening force elastic piece are little affected by the working condition environment, so that the damping effect of the support rod is stable. Meanwhile, the pre-tightening elastic piece continuously provides pressure for the friction unit and the rotating nut, so that an automatic abrasion supplementing effect is generated on the friction unit and the rotating nut, the service life of the damping assembly is prolonged, and long-time normal operation of the damping assembly is ensured. The damping force is changed by adjusting the pressure of the pretightening force elastic piece or changing the number of friction units, so that the fine adjustment of the damping force is facilitated. Meanwhile, the whole supporting rod is in linear arrangement, abrasion among a plurality of parts in the supporting rod is reduced, the error rate of a transmission structure is lower, the whole transmission structure is simple, and the production cost and the after-sale cost are effectively reduced.
Drawings
Fig. 1 is a schematic view showing the overall structure of a support bar according to an embodiment of the present invention.
Fig. 2 is a schematic view showing the internal structure of the support bar according to the embodiment of the present invention.
Fig. 3 is a schematic view showing a disassembled structure of the support bar according to the embodiment of the present invention.
Fig. 4 is a schematic diagram of the damping structure of an embodiment of the present invention.
Fig. 5 is a schematic structural view of a damping shell body according to an embodiment of the present invention.
Fig. 6 is a schematic view of the overall structure of an automobile according to an embodiment of the present invention.
In the figure:
10. a first cylinder; 11. a first fixing member; 12. a first outer cylinder; 13. a first inner cylinder; 14. a stroke limit part; 15. a connecting cylinder end; 16. damping the transmission channel; 17. a supporting and limiting cavity;
30. a damping assembly; 31. a damping housing; 32. a damping shell body; 33. the second limiting cavity; 34. reinforcing the platform; 35. a plug-in groove; 36. reinforcing the extension arm; 37. a friction unit; 38. a friction plate; 39. a positioning sheet; 40. a resistance friction surface; 41. rotating the nut; 42. a plastic nut body; 43. a metal ladle cover; 44. a pre-tightening elastic piece; 45. a damping cap; 46. a first spacing cavity; 47. a pretightening force protecting part; 48. a pretightening force protecting surface;
60. a second cylinder; 61. a second fixing member; 62. a second outer cylinder; 63. a threaded transmission rod; 64. a protruding limiting block;
70. an elastic driving member;
80. a vehicle body; 81. a tail gate; 82. an electric drive lever; 83. and (5) supporting the rod.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present invention are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used in the present invention in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; the mechanical connection can be realized, and the welding connection can be realized; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 to 6, a support bar 83 of a preferred embodiment of the present invention includes a first cylinder 10, a second cylinder 60, and an elastic driving member 70 extending in an axial direction, both ends of the elastic driving member 70 being connected to the first cylinder 10 and the second cylinder 60, respectively;
the first cylinder 10 comprises a first fixing piece 11, a first outer cylinder 12, a first inner cylinder 13 and a damping assembly 30, wherein the first inner cylinder 13 is installed in the first outer cylinder 12, one end of the first inner cylinder 13 and one end of the first outer cylinder 12 are respectively fixed on the first fixing piece 11, the damping assembly 30 comprises a damping shell 31, a pre-tightening elastic piece 44, a friction unit 37 and a rotating nut 41, the pre-tightening elastic piece 44, the friction unit 37 and the rotating nut 41 are respectively installed in the damping shell 31, at least one end of the rotating nut 41 is in butt joint with the friction unit 37 through the pre-tightening elastic piece 44, the damping shell 31 is connected to one end, far away from the first fixing piece 11, of the first inner cylinder 13, and the damping shell 31, the pre-tightening elastic piece 44, the friction unit 37, the rotating nut 41 and the first inner cylinder 13 are axially communicated to form a damping transmission channel 16;
the second cylinder 60 includes a second fixing member 61, a second outer cylinder 62, and a screw transmission rod 63, the screw transmission rod 63 is installed in the second outer cylinder 62, one end of the second outer cylinder 62 and one end of the screw transmission rod 63 are fixed to the second fixing member 61, the screw transmission rod 63 is installed in the damping transmission channel 16, and the screw transmission rod 63 is screw-connected with the rotation nut 41.
In the support bar 83 of the present invention, both ends of the elastic driving member 70 are connected to the first cylinder 10 and the second cylinder 60, respectively, and the first cylinder 10 and the second cylinder 60 slide relatively, and when the overall length of the support bar 83 becomes long, the elastic driving member 70 provides a supporting function. Wherein, one end of the first outer cylinder 12 and one end of the first inner cylinder 13 are connected to the first fixing member 11, and the damping assembly 30 is connected to one end of the first inner cylinder 13 away from the first fixing member 11, so that the first outer cylinder 12, the first inner cylinder 13, the first fixing member 11 and the damping assembly 30 form a first integral body. The second cylinder 60 includes a second fixing member 61, a second outer cylinder 62, and a screw transmission rod 63, the screw transmission rod 63 is installed in the second outer cylinder 62, a movable space of the first inner cylinder 13 and the damping assembly 30 is formed between the outer circumference of the screw transmission rod 63 and the second outer cylinder 62, and one end of the second outer cylinder 62 and one end of the screw transmission rod 63 are fixed to the second fixing member 61 to form a second whole. The damping assembly 30 includes a damping housing 31, a pre-tightening elastic member 44, a friction unit 37 and a rotation nut 41, wherein the pre-tightening elastic member 44, the friction unit 37 and the rotation nut 41 are installed in the damping housing 31, so that the integrity of the damping assembly 30 is improved, the pre-tightening elastic member 44, the friction unit 37 and the rotation nut 41 are maintained in the damping housing 31 when a damping effect is formed, and the operation stability of the damping effect of the support rod 83 is improved. The damping shell 31, the pretightening force elastic member 44, the friction unit 37, the rotating nut 41 and the first inner cylinder 13 are axially communicated to form a damping transmission channel 16, the threaded transmission rod 63 is installed in the damping transmission channel 16, the threaded transmission rod 63 is in threaded transmission connection with the rotating nut 41, when the whole support rod 83 is lengthened through relative sliding of the first cylinder 10 and the second cylinder 60, the threaded transmission rod 63 moves in the axial direction far away from the first fixing member 11 due to the threaded connection of the rotating nut 41 and the threaded transmission rod 63, the rotating nut 41 rotates by taking the threaded transmission rod 63 as a rotating shaft, the pretightening force elastic member 44 continuously applies extrusion force to the rotating nut 41 and the friction unit 37 in the axial direction, one end of the rotating nut 41 is abutted against the friction unit 37 and rubs, rotational resistance is generated between the friction unit 37 and the rotating nut 41, and further the support rod 83 is lengthened to generate damping action. Wherein, because friction unit 37, pretightning force elastic component 44 receive operating mode environment influence little for the damping effect of bracing piece 83 is stable. Meanwhile, the pre-tightening elastic piece 44 continuously provides pressure for the friction unit 37 and the rotating nut 41, so that an automatic abrasion supplementing effect is generated on the friction unit 37 and the rotating nut 41, the service life of the damping assembly 30 is prolonged, and long-time normal operation of the damping assembly 30 is ensured. The damping force is changed by adjusting the pressure of the pre-tightening force elastic member 44 or changing the number of the friction units 37, so that fine adjustment of the damping force is facilitated. Meanwhile, the supporting rods 83 are integrally arranged linearly, abrasion among a plurality of parts in the supporting rods 83 is reduced, error rate of a transmission structure is lower, the whole transmission structure is simple, and production cost and after-sale cost are effectively reduced.
As one example, the two ends of the rotating nut 41 are respectively abutted against the friction units 37, so that the damping effect is better.
As one example, the pre-tightening elastic member 44 and the elastic driving member 70 are springs, which are common parts, and are easy to purchase in the market, so that the production cost and the production difficulty are reduced.
Further, as shown in fig. 3, the friction unit 37 is provided with a resistance friction surface 40 that abuts against the rotation nut 41 on the side facing the rotation nut 41, and the resistance friction surface 40 and the rotation nut 41 are relatively rotated by a screw transmission rod 63. The resistance friction surface 40 is provided with a friction protrusion protruding toward the rotation nut 41 to increase friction with the resistance friction surface 40 when the rotation nut 41 rotates, so that the support rod 83 forms a damping effect when expanding and contracting.
Further, as shown in fig. 2 to 4, the friction unit 37 includes a friction plate 38 and a positioning plate 39, and the friction plate 38 is located between the rotation nut 41 and the positioning plate 39. The positioning plate 39 is positioned between the friction plate 38 and the pre-tightening elastic piece 44, so that the friction plate 38 is prevented from directly wearing the pre-tightening elastic piece 44, and the damping assembly 30 is prevented from being disabled due to the wearing of the pre-tightening elastic piece 44. At the same time, the positioning piece 39 plays a role in positioning the friction piece 38, so that one end of the friction piece 38 is kept in contact with the rotation nut 41 and generates rotation resistance.
As an example, as shown in fig. 3, the positioning plate 39 is a metal plate, which improves the wear resistance of the friction unit 37.
As an embodiment, as shown in fig. 3, a side surface of the positioning piece 39 facing the pre-tightening elastic member 44 is a smooth surface, so that wear of the pre-tightening elastic member 44 is reduced, and the service life of the damping assembly 30 is prolonged.
Further, as shown in fig. 4, the rotary nut 41 includes a plastic nut body 42 and a metal cap 43, the plastic nut body 42 is in screw-driving connection with the screw transmission rod 63, the metal cap 43 is at least coated on an end of the nut body facing the friction unit 37, and the metal cap 43 abuts against the friction unit 37. The axial length of the threaded transmission rod 63 is longer, the threaded transmission rod 63 is made of metal, the hardness of the metal is high, the threaded transmission rod 63 is prevented from being deformed axially, and the transmission smoothness of the threaded transmission rod 63 and the rotary nut 41 is ensured. Meanwhile, the plastic nut body 42 is in transmission connection with the threaded transmission rod 63, so that noise is effectively reduced, and customer experience is improved.
Further, as shown in fig. 4 to 5, the damping shell 31 includes a damping shell main body 32 and a damping cover 45, the damping cover 45 and the first inner cylinder 13 are respectively connected to two ends of the damping shell main body 32, the damping cover 45 is provided with a first limiting cavity 46 with an opening facing the damping shell 31, the pre-tightening elastic member 44 is installed in the first limiting cavity 46, the damping shell main body 32 is provided with a second limiting cavity 33, the friction unit 37 and the rotating nut 41 are respectively installed in the second limiting cavity 33, the first limiting cavity 46 is axially communicated with the second limiting cavity 33, the damping cover 45 stretches into the second limiting cavity 33 to form a pre-tightening protection part 47, the pre-tightening protection part 47 is provided with a pre-tightening protection surface 48 facing the friction unit 37, and the pre-tightening protection surface 48 is axially clearance fit with the friction unit 37. The damping cover 45 is provided with a first limiting cavity 46, the pre-tightening force elastic piece 44 is installed in the first limiting cavity 46, and radial limiting of the pre-tightening force elastic piece 44 is achieved through the first limiting cavity 46. The damping shell main body 32 is provided with a second limiting cavity 33, the friction unit 37 and the rotating nut 41 are mounted in the second limiting cavity 33, and the second limiting cavity 33 realizes radial limiting on the friction unit 37 and the rotating nut 41. The damping shell main body 32 and the damping cover 45 are arranged in a split mode, so that the assembly of the damping assembly 30 is facilitated, and the assembly efficiency is improved. Simultaneously, damping lid 45 stretches into second spacing chamber 33 and forms pretightning force protection part 47, pretightning force protection part 47 is equipped with pretightning force protection face 48 towards friction unit 37, pretightning force protection face 48 and friction unit 37 are in axial clearance fit, when making screw drive rod 63 remove to the direction of keeping away from first mounting 11, avoid spin nut 41 and friction unit 37 to excessively extrude pretightning force elastic member 44, make the elasticity of pretightning force elastic member 44 inefficacy, pretightning force protection face 48 and friction unit 37 are in axial clearance fit, pretightening force elastic member 44 can be to friction unit 37 and spin nut 41 continuously exert the extrusion effort, simultaneously, realize the protection to pretightning force elastic member 44 when screw drive rod 63 moves to the direction of keeping away from first mounting 11, guarantee pretightening force elastic member 44's life.
As one example, as shown in fig. 3, the damping cover 45 is screwed with the damping shell body 32, so that the connection reliability and the dismounting efficiency of the damping cover 45 and the damping shell body 32 are improved.
Further, as shown in fig. 5, the inner wall of the second limiting cavity 33 protrudes radially toward one end of the first inner cylinder 13 to form a reinforcing platform 34, and the reinforcing platform 34 is located between the damping assembly 30 and the first inner cylinder 13. Through the setting of strengthening the platform 34, promote the joint strength between damping casing 31 and the first interior barrel 13, because pretightning force elastic component 44 is continuously exerted the extrusion effort towards strengthening the platform 34 direction, the setting of strengthening the platform 34 can prevent damping shell main part 32 deformation, prolongs damping assembly 30's life.
Further, as shown in fig. 4 to 5, a plugging slot 35 is provided on a side of the reinforcing platform 34 facing the first inner cylinder 13, a connecting cylinder end 15 is provided on an end of the first inner cylinder 13 facing the damping housing 31, a travel limit portion 14 is formed by protruding radially inwards, a radial protruding limit block 64 is provided on an end of the threaded transmission rod 63 away from the second fixing member 61, the diameter of the protruding limit block 64 is larger than that of the travel limit portion 14, and the connecting cylinder end 15 is connected to the plugging slot 35. The protruding stopper 64 is an upper limit of the length of the support rod 83 when abutting against the stroke limiting portion 14, so as to realize axial limiting of the first cylinder 10 and the second cylinder 60. The connecting cylinder end 15 is connected to the insertion groove 35, so that the first inner cylinder 13 is connected to the damping shell main body 32.
Further, as shown in fig. 4, the inner side of the end of the reinforcing platform 34 facing the first inner cylinder 13 is provided with a reinforcing extension arm 36, the connecting cylinder end 15 and the reinforcing extension arm 36 have a connection overlapping area, the reinforcing extension arm 36 is connected to the travel limiting portion 14, the connection strength of the damping shell main body 32 and the first inner cylinder 13 in the radial direction is improved, and the service life of the damping assembly 30 is prolonged.
As one example, the reinforcing extension arm 36 is integrally provided with the first inner cylinder 13.
As one embodiment, the damping shell main body 32 is a plastic part, the first inner cylinder 13 is made of a hardware material, the damping shell main body 32 and the first inner cylinder 13 are produced through an encapsulation process, the connection precision of the damping shell main body 32 and the first inner cylinder 13 is improved, meanwhile, manual assembly is avoided, the production cost is reduced, and the product processing time is shortened.
Further, as shown in fig. 1 to 2, a supporting and limiting cavity 17 is formed between the second outer cylinder 62 and the first inner cylinder 13, and an elastic driving member 70 is mounted in the supporting and limiting cavity 17, and two ends of the elastic driving member 70 are respectively abutted against the first cylinder 10 and the second cylinder 60. Through the setting of supporting spacing chamber 17, realize the radial spacing to elastic drive piece 70, promote elastic drive piece 70's installation reliability. The first cylinder 10 and the second cylinder 60 are respectively pushed away from each other by the two ends of the elastic driving member 70 to slide so as to realize the extension of the support bar 83.
An automobile, as shown in fig. 6, comprises a car body 80, a tail door 81 and a supporting component, wherein the supporting component comprises an electric driving rod 82 and a supporting rod 83, the tail door 81 is hinged to the car body 80, so that the tail door 81 rotates relative to the car body 80, one ends of the supporting rod 83 and the electric driving rod 82 are respectively connected with the car body 80, the other ends of the supporting rod 83 and the electric driving rod 82 are respectively connected with the tail door 81, so that the rotation amplitude of the tail door 81 and the car body 80 is controlled through the strokes of the supporting rod 83 and the electric driving rod 82, the electric driving rod 82 serves as a main driving rod, the tail door 81 and the car body 80 are driven to be opened or closed relatively, the supporting rod 83 and the electric driving rod 82 are respectively located at two opposite sides of the tail door 81, and the supporting rod 83 is matched with the electric driving rod 82 to be used, and the problems of tail door deformation and the like caused by asynchronous movement speed and inconsistent stroke change of the tail door 81 in the opening and closing process are avoided. Meanwhile, the support rod 83 is provided with the damping component 30, so that the electric driving rod 82 is reduced in damping component 30, the structural complexity of the electric driving rod 82 is reduced, the after-sale maintenance difficulty of the support rod 83 and the electric driving rod 82 is reduced, and the after-sale maintenance cost is reduced.
In summary, the embodiment of the present invention provides a support rod 83 and an automobile thereof, wherein two ends of an elastic driving member 70 are respectively connected with a first cylinder 10 and a second cylinder 60, the first cylinder 10 and the second cylinder 60 slide relatively, and when the overall length of the support rod 83 is increased, the elastic driving member 70 provides a supporting function. Wherein, one end of the first outer cylinder 12 and one end of the first inner cylinder 13 are connected to the first fixing member 11, and the damping assembly 30 is connected to one end of the first inner cylinder 13 away from the first fixing member 11, so that the first outer cylinder 12, the first inner cylinder 13, the first fixing member 11 and the damping assembly 30 form a first integral body. The second cylinder 60 includes a second fixing member 61, a second outer cylinder 62, and a screw transmission rod 63, the screw transmission rod 63 is installed in the second outer cylinder 62, a movable space of the first inner cylinder 13 and the damping assembly 30 is formed between the outer circumference of the screw transmission rod 63 and the second outer cylinder 62, and one end of the second outer cylinder 62 and one end of the screw transmission rod 63 are fixed to the second fixing member 61 to form a second whole. The damping assembly 30 includes a damping housing 31, a pre-tightening elastic member 44, a friction unit 37 and a rotation nut 41, wherein the pre-tightening elastic member 44, the friction unit 37 and the rotation nut 41 are installed in the damping housing 31, so that the integrity of the damping assembly 30 is improved, the pre-tightening elastic member 44, the friction unit 37 and the rotation nut 41 are maintained in the damping housing 31 when a damping effect is formed, and the operation stability of the damping effect of the support rod 83 is improved. The damping shell 31, the pretightening force elastic member 44, the friction unit 37, the rotating nut 41 and the first inner cylinder 13 are axially communicated to form a damping transmission channel 16, the threaded transmission rod 63 is installed in the damping transmission channel 16, the threaded transmission rod 63 is in threaded transmission connection with the rotating nut 41, when the whole support rod 83 is lengthened through relative sliding of the first cylinder 10 and the second cylinder 60, the threaded transmission rod 63 moves in the axial direction far away from the first fixing member 11 due to the threaded connection of the rotating nut 41 and the threaded transmission rod 63, the rotating nut 41 rotates by taking the threaded transmission rod 63 as a rotating shaft, the pretightening force elastic member 44 continuously applies extrusion force to the rotating nut 41 and the friction unit 37 in the axial direction, one end of the rotating nut 41 is abutted against the friction unit 37 and rubs, rotational resistance is generated between the friction unit 37 and the rotating nut 41, and further the support rod 83 is lengthened to generate damping action. Wherein, because friction unit 37, pretightning force elastic component 44 receive operating mode environment influence little for the damping effect of bracing piece 83 is stable. Meanwhile, the pre-tightening elastic piece 44 continuously provides pressure for the friction unit 37 and the rotating nut 41, so that an automatic abrasion supplementing effect is generated on the friction unit 37 and the rotating nut 41, the service life of the damping assembly 30 is prolonged, and long-time normal operation of the damping assembly 30 is ensured. The damping force is changed by adjusting the pressure of the pre-tightening force elastic member 44 or changing the number of the friction units 37, so that fine adjustment of the damping force is facilitated. Meanwhile, the supporting rods 83 are integrally arranged linearly, abrasion among a plurality of parts in the supporting rods 83 is reduced, error rate of a transmission structure is lower, the whole transmission structure is simple, and production cost and after-sale cost are effectively reduced.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (10)
1. A support bar, characterized in that: the device comprises a first cylinder body, a second cylinder body and an elastic driving piece, wherein the first cylinder body, the second cylinder body and the elastic driving piece extend along the axial direction, and two ends of the elastic driving piece are respectively connected with the first cylinder body and the second cylinder body;
the first cylinder comprises a first fixing piece, a first outer cylinder, a first inner cylinder and a damping assembly, wherein the first inner cylinder is installed in the first outer cylinder, one end of the first inner cylinder and one end of the first outer cylinder are respectively fixed on the first fixing piece, the damping assembly comprises a damping shell, a pre-tightening elastic piece, a friction unit and a rotating nut, the pre-tightening elastic piece, the friction unit and the rotating nut are respectively installed in the damping shell, at least one end of the rotating nut is in butt joint with the friction unit through the pre-tightening elastic piece, the damping shell is connected to one end, far away from the first fixing piece, of the first inner cylinder, and the damping shell, the pre-tightening elastic piece, the friction unit, the rotating nut and the first inner cylinder are axially communicated to form a damping transmission channel;
the second cylinder comprises a second fixing piece, a second outer cylinder body and a threaded transmission rod, wherein the threaded transmission rod is installed in the second outer cylinder body, one end of the second outer cylinder body and one end of the threaded transmission rod are fixed on the second fixing piece, the threaded transmission rod is installed in the damping transmission channel, and the threaded transmission rod is in threaded transmission connection with the rotating nut.
2. The support bar of claim 1, wherein: and one side of the friction unit, which faces the rotating nut, is provided with a resistance friction surface which is abutted against the rotating nut, and the resistance friction surface and the rotating nut relatively rotate through the threaded transmission rod.
3. The support bar of claim 1, wherein: the friction unit comprises a friction plate and a positioning plate, and the friction plate is positioned between the rotating nut and the positioning plate.
4. The support bar of claim 1, wherein: the rotary nut comprises a plastic nut body and a metal cover, the threaded transmission rod is made of metal, the plastic nut body is in threaded transmission connection with the threaded transmission rod, the metal cover is at least coated on one side end portion of the nut body facing the friction unit, and the metal cover is in butt joint with the friction unit.
5. The support bar of claim 1, wherein: the damping shell comprises a damping shell body and a damping cover, the damping cover and the first inner cylinder body are respectively connected to two ends of the damping shell body, the damping cover is provided with a first limiting cavity with an opening facing the damping shell body, a pretightening force elastic piece is installed in the first limiting cavity, the damping shell body is provided with a second limiting cavity, a friction unit and a rotating nut are respectively installed in the second limiting cavity, the first limiting cavity is axially communicated with the second limiting cavity, the damping cover stretches into the second limiting cavity to form a pretightening force protection part, the pretightening force protection part faces the friction unit and is provided with a pretightening force protection surface, and the pretightening force protection surface is in axial clearance fit with the friction unit.
6. The support bar of claim 5, wherein: the inner wall of the second limiting cavity protrudes radially towards one end of the first inner cylinder body to form a reinforcing platform, and the reinforcing platform is located between the damping component and the first inner cylinder body.
7. The support bar of claim 6, wherein: one side of the reinforcing platform facing the first inner cylinder body is provided with an inserting groove, one end of the first inner cylinder body facing the damping shell body is provided with a connecting cylinder end and a travel limiting part protruding inwards in the radial direction, one end of the threaded transmission rod, which is far away from the second fixing part, is provided with a protruding limiting block in the radial direction, the diameter of the protruding limiting block is larger than that of the travel limiting part, and the connecting cylinder end is connected with the inserting groove.
8. The support bar of claim 7, wherein: the inner side of the reinforcing platform facing one end of the first inner cylinder body is provided with a reinforcing extension arm, the connecting cylinder end and the reinforcing extension arm are provided with a connecting overlapping area, and the reinforcing extension arm is connected to the travel limiting part.
9. The support bar of claim 1, wherein: and a supporting and limiting cavity is formed between the second outer cylinder body and the first inner cylinder body, the elastic driving piece is installed in the supporting and limiting cavity, and two ends of the elastic driving piece are respectively abutted to the first cylinder body and the second cylinder body.
10. An automobile, characterized in that: the automobile comprises an automobile body, a tail door and a supporting component, wherein the supporting component comprises an electric driving rod and the supporting rod according to any one of claims 1-9, the tail door is hinged to the automobile body, one end of the supporting rod and one end of the electric driving rod are respectively connected with the automobile body, the other end of the supporting rod and the other end of the electric driving rod are respectively connected with the tail door, and the supporting rod and the electric driving rod are respectively positioned on two opposite sides of the tail door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311257391.0A CN117262033A (en) | 2023-09-27 | 2023-09-27 | Support rod and automobile with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311257391.0A CN117262033A (en) | 2023-09-27 | 2023-09-27 | Support rod and automobile with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117262033A true CN117262033A (en) | 2023-12-22 |
Family
ID=89202238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311257391.0A Pending CN117262033A (en) | 2023-09-27 | 2023-09-27 | Support rod and automobile with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117262033A (en) |
-
2023
- 2023-09-27 CN CN202311257391.0A patent/CN117262033A/en active Pending
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