CN217054755U

CN217054755U - Damper and vehicle door stay bar

Info

Publication number: CN217054755U
Application number: CN202220566513.9U
Authority: CN
Inventors: 金龙旭; 陈三阳
Original assignee: Cloudatlas Electronic Equipment System Co ltd
Current assignee: Cloudatlas Electronic Equipment System Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-26
Anticipated expiration: 2032-03-15

Abstract

The utility model discloses a damper for the door vaulting pole, the door vaulting pole includes the driving medium, the damper includes casing and attenuator body, the inside of casing is formed with holds the chamber, the attenuator body is located and is held the intracavity, connect the driving medium with the transmission, wherein a surface of casing is formed with subtracts the silo, so can reduce the quantity of casing when manufacturing through setting up subtracting the silo, thereby reduced the manufacturing cost of casing, and then reduced the manufacturing cost of attenuator.

Description

Damper and vehicle door stay bar

Technical Field

The utility model relates to an automobile parts technical field, in particular to attenuator and door vaulting pole.

Background

The tail gate of car can open and close through the effect of vaulting pole, and in order to improve the performance of vaulting pole, be equipped with the attenuator in the outer tube of vaulting pole, utilize the attenuator to provide damping torque for driving medium such as screw rod to increased the internal resistance of vaulting pole, can prevent that the tail gate from opening and the switching in-process of closing the phenomenon that drops appears down, had good effect of hovering.

The shell of the existing damper is generally manufactured and molded through injection molding of a mold, so that the problem that the manufacturing cost of the shell is high due to excessive materials exists, and the technical problem that the manufacturing cost of the whole damper is high exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a attenuator and door vaulting pole aims at being provided with the relief groove through the surface at the casing, has solved the too much technical problem that leads to manufacturing cost too high of materials of the casing of current attenuator.

In order to achieve the above object, the utility model provides a damper for the door vaulting pole, the door vaulting pole includes the driving medium, the damper includes casing and attenuator body, the inside of casing is formed with holds the chamber, the attenuator body is located hold the intracavity, connect with the transmission the driving medium, wherein a surface of casing is formed with the material reducing groove.

Optionally, the casing includes a first casing and a second casing, the first casing is connected with the second casing and encloses to form the accommodating cavity, and a surface of the first casing facing away from the second casing forms the relief groove.

Optionally, a catching groove is further formed on a surface of the first casing facing away from the second casing, and the catching groove and the relief groove are arranged at intervals along the periphery of the first casing.

Optionally, the number of the relief grooves is multiple, the number of the catching grooves is multiple, the relief grooves and the catching grooves are arranged at intervals along the periphery of the first shell respectively, and one catching groove is correspondingly arranged between two adjacent relief grooves;

and/or the reducing groove is formed by the surface of the first shell sinking towards the direction of the second shell;

and/or the buckle groove is formed by the side surface of the first shell which is concave towards the direction of the center of the first shell.

Optionally, the first casing set up with hold the first mouth of dodging that the chamber communicates, the second casing set up with hold the second that the chamber communicates and dodge the mouth, and with the first mouth of dodging is corresponding, so that the driving medium wears to establish in proper order the first mouth of dodging the attenuator body and the second dodges the mouth.

Optionally, the surface of the second casing, which faces away from the first casing, is convexly provided with a plurality of connecting blocks, and the plurality of connecting blocks are arranged at intervals along the periphery of the surface of the second casing and are used for connecting an external reduction gearbox.

Optionally, the first housing is provided with one of an internal thread and an external thread, the second housing is provided with the other of the internal thread and the external thread, and the internal thread is engaged with the external thread to screw the first housing to the second housing.

Optionally, the attenuator body includes wave form elastic component and damping subassembly, the wave form elastic component with the damping subassembly all set up in hold the intracavity, be used for making the driving medium wears to locate in proper order the wave form elastic component with the damping subassembly, the definition the wave form elastic component has relative first end and the second end that sets up, first end elasticity butt in first casing is close to the surface of second casing, second end elasticity butt in the damping subassembly.

Optionally, the damping subassembly includes first spacer, friction disc and second spacer, first spacer the friction disc and the second spacer all set up in hold the intracavity, first through-hole has been seted up to first spacer, the second through-hole has been seted up to the friction disc, the pore wall of second through-hole is equipped with fixedly the connecting portion of driving medium, the third through-hole has been seted up to the second spacer, is used for making the driving medium wears to establish in proper order first through-hole the second through-hole and the third through-hole, first spacer butt in the second end, and with be formed with the friction space between the second spacer, the friction disc is located in the friction space.

In order to achieve the above object, an embodiment of the present invention provides a vehicle door stay, the vehicle door stay includes an outer tube, a damper is provided in the outer tube.

The utility model discloses technical scheme is formed with a reducing tank through the housing face at the attenuator, so can reduce the quantity of casing when manufacturing in order to reduce through setting up reducing tank to reduce the production manufacturing cost of casing, and then reduced the production manufacturing cost of attenuator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the damper of the present invention;

FIG. 2 is a schematic structural view of another embodiment of the damper of the present invention;

figure 3 is an exploded view of one embodiment of the housing and damper body of figure 1.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name (R)
				100	Damper	31	Wave-shaped elastic piece
10	Shell body	311	First end
				11	First shell	313	Second end
11a	First avoiding port	33	Damping assembly
				111	Relief trough	331	First positioning sheet
113	Catching groove	331a	First through hole
				115	Internal thread	333	Friction plate
13	Second shell	333a	Second through hole
				13a	Second avoiding port	333b	Connecting part
131	Connecting block	335	Second positioning sheet
				133	External thread	335a	Third through hole
30	Damper body

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application related to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are implicitly being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a attenuator 100.

In the embodiment of the present invention, as shown in fig. 1 to 3, the damper 100 is used for a vehicle door stay, the vehicle door stay (not shown) includes a transmission member (not shown), the damper 100 includes a housing 10 and a damper body 30, the housing 10 is formed with a containing cavity, the damper body 30 is disposed in the containing cavity to connect the transmission member, and a surface of the housing 10 is formed with a material reducing groove 111.

In an embodiment, the transmission member may be a screw rod or a spline shaft or other component having a transmission effect, the transmission member is inserted into the accommodating cavity and rotatably disposed in the accommodating cavity, and meanwhile, the transmission member can be in transmission connection with the damper 100, that is, when the transmission member rotates, the damper body 30 applies a damping torque to the transmission member, so that a friction force applied to the transmission member is increased, and further, an effective internal resistance of the vehicle door stay bar is increased, thereby preventing the tailgate from falling off, and enabling the tailgate to have a good hovering effect; since the case 10 can be injection molded by a mold, the damper groove 111 is formed in the case 10, the raw material for manufacturing the case 10 can be reduced, and thus the production cost of the case 10 can be reduced, thereby reducing the production cost of the damper 100, and the weight of the housing 10 can be reduced by the provision of the relief groove 111, so that the overall weight of the damper 100 is reduced, it is noted that the number of the material reducing grooves 111 may be one, two, three or four, and is not particularly limited herein, for example, when there are four relief grooves 111 and the cross section of the casing 10 is circular, the four relief grooves 111 are arranged at intervals along the circumferential direction of the casing 10, and the casing 10 is provided with an avoiding opening for the transmission member to penetrate through, therefore, the four material reducing grooves 111 are surrounded along the avoiding opening, the material reducing grooves 111 are arc-shaped, the space can be utilized to the maximum degree, and the attractiveness is better.

According to the technical scheme, the material required by the shell 10 in the manufacturing process is reduced by forming the relief groove 111 on the surface of the shell 10, so that the manufacturing cost of the shell 10 is reduced, and the production cost of the damper 100 is further reduced.

In an embodiment of the present invention, as shown in fig. 1 to fig. 3, the casing 10 includes a first casing 11 and a second casing 13, the first casing 11 is connected to the second casing 13 and encloses to form a containing cavity, and the surface of the first casing 11 departing from the second casing 13 forms a material reducing groove 111.

In an embodiment, the casing 10 includes a first casing 11 and a second casing 13, it can be understood that the first casing 11 and the second casing 13 can enclose to form an accommodating cavity, so that the damper body 30 is disposed in the accommodating cavity, and when the transmission member is disposed through the first casing 11 and the second casing 13, the transmission member is in transmission connection with the damper body 30, a surface of the first casing 11 facing away from the second casing 13, that is, a plurality of damping grooves 111 are formed on an upper surface of the first casing 11, and the plurality of damping grooves 111 can reduce a material required by the first casing 11 in a manufacturing process, thereby reducing a production cost of the first casing 11; in addition, the connection between the first housing 11 and the second housing 13 may be a snap connection, a threaded connection, a welding connection, or an elastic interference fit connection, or an integral injection molding connection, and the specific connection mode between the two may be selected according to actual production requirements.

Further, as shown in fig. 1, a fastening groove 113 is formed on a surface of the first housing 11 facing away from the second housing 13, and the fastening groove 113 and the material reducing groove 111 are arranged at intervals along a circumference of the first housing 11.

In one embodiment, when the damper 100 is disposed inside the outer sleeve of the vehicle door stay, the cylinder wall of the outer sleeve is provided with a plurality of fasteners matched with the plurality of fastening grooves 113, and one fastener is correspondingly connected to one fastening groove 113, so that the fastening groove 113 is disposed to enable the damper 100 to be stably mounted in the outer sleeve of the stay, and when a manipulator or a human hand used for mounting the first housing 11 and the second housing 13 in a workshop needs to detach the first housing 11 from the second housing 13, the fastening groove 113 can serve as a stress groove, the manipulator or the human hand can extend into the fastening groove 113 to circumferentially rotate or vertically move the first housing 11, so that the manipulator or the human hand can work conveniently, and the work efficiency is improved; the number of catching grooves 113 can be two, three or four, can select according to actual need, chooses for use when four when the number of catching grooves 113, and the cross section of casing 10 is circular, and four catching grooves 113 set up along the circumference interval of casing 10, and are equipped with on casing 10 to have the mouth of dodging that supplies the driving medium to wear to establish.

Further, as shown in fig. 1, the number of the material reducing grooves 111 is multiple, the number of the fastening grooves 113 is multiple, the material reducing grooves 111 and the fastening grooves 113 are respectively arranged at intervals along the periphery of the first housing 11, and one fastening groove 113 is correspondingly arranged between two adjacent material reducing grooves 111.

And/or, the reducing groove 111 is formed by the surface of the first shell 11 sinking towards the direction of the second shell 13;

and/or, the catching groove 113 is formed by a side surface of the first housing 11 being depressed toward the center of the first housing 11.

In an embodiment, when the fastening grooves 113 and the material reducing grooves 111 are formed on the upper surface of the first housing 11, if the positions of the fastening grooves 113 and the material reducing grooves 111 are reasonably distributed, the area of the upper surface of the first housing 11 occupied by the fastening grooves 113 and the material reducing grooves 111 can be reduced, and therefore, one fastening groove 113 is disposed between two adjacent material reducing grooves 111, so that the spatial arrangement of the fastening grooves 113 and the material reducing grooves 111 can be more reasonable, and the aesthetic property can be better. Simultaneously, the relief groove 111 is recessed from the surface of the first housing 11 toward the second housing 13, so that the aesthetic property is better, and the buckling piece can be directly inserted into the buckling groove 113 because the buckling groove 113 is recessed from the side of the first housing 11 toward the center of the first housing 11.

Further, as shown in fig. 1 to fig. 2, the first housing 11 is provided with a first avoiding opening 11a communicated with the accommodating cavity, and the second housing 13 is provided with a second avoiding opening 13a communicated with the accommodating cavity and corresponding to the first avoiding opening 11a, so that the transmission member sequentially penetrates through the first avoiding opening 11a, the damper body 30 and the second avoiding opening 13 a.

In an embodiment, when the transmission member is disposed in the accommodating cavity, the first housing 11 and the second housing 13 need to be disposed in a penetrating manner, so that the first housing 11 is provided with a first avoiding opening 11a, the second housing 13 is provided with a second avoiding opening 13a, and the first avoiding opening 11a and the second avoiding opening 13a are correspondingly disposed, so that the transmission member sequentially passes through the first avoiding opening 11a, the damper body 30 and the second avoiding opening 13a along the up-down direction, so that the transmission member can pass through the accommodating cavity formed by enclosing the first housing 11 and the second housing 13, and the damper body 30 is connected in a penetrating manner, and the areas of the first avoiding opening 11a and the second avoiding opening 13a can be correspondingly adjusted according to the cross-sectional area of the transmission member.

Further, as shown in fig. 2, a plurality of connection blocks 131 are convexly disposed on a surface of the second casing 13 away from the first casing 11, and the plurality of connection blocks 131 are arranged at intervals along a periphery of the surface of the second casing 13 for connecting an external reduction gearbox.

In an embodiment, the second housing 13 in the damper 100 is connected and matched with the reduction gearbox, so that a plurality of connecting blocks 131 are provided to connect with the reduction gearbox, and meanwhile, the connecting blocks 131 can also be matched with a vibration-proof pad, a vibration-proof rubber or other vibration-proof pieces, so that not only can the dimensional tolerance of the damper 100 and the reduction gearbox be absorbed, but also the vibration-proof function can be achieved. Of course, the structure for connecting the second housing 13 and the reduction gearbox is not limited to the connecting block 131, but may also be a connecting rib, a connecting groove or other structures capable of connecting and limiting the damper 100 and the reduction gearbox, where the number of the connecting blocks 131 is not limited, and may be two, three or four, and may be selected according to the number of the connecting structures corresponding to the reduction gearbox.

Further, as shown in fig. 3, the first housing 11 is provided with one of the internal thread 115 and the external thread 133, the second housing 13 is provided with the other of the internal thread 115 and the external thread 133, and the internal thread 115 is engaged with the external thread 133 to screw the first housing 11 to the second housing 13.

In one embodiment, compared to the prior art in which the first housing 11 and the second housing 13 are connected through the pin and the slot, when the transmission member rotates, the friction plate 333 inside the damper body 30 rotates in cooperation with the transmission member, so that it may happen that the friction plate 333 drives the first housing 11 or the second housing 13 to rotate, and therefore, when the first housing 11 or the second housing 13 rotates, the pin may also rotate, that is, there may be a break in the slot, so the present application provides the internal thread 115 through the first housing 11, provides the external thread 133 through the second housing 13, and the internal thread 115 is engaged with the external thread 133, so as to connect the first housing 11 and the second housing 13 by screwing, or provides the external thread 133 through the first housing 11, provides the internal thread 115 through the second housing 13, and engages with the external thread 133, so as to connect the first housing 11 and the second housing 13 by screwing, the homoenergetic guarantees that under first casing 11 or second casing 13 take place the pivoted condition, and first casing 11 and second casing 13 both's connection structure can not take place to damage, and then can guarantee the reliability that both connect to processing is convenient, is applicable to the workshop and makes.

Further, referring to fig. 3, the damper body 30 includes a wave-shaped elastic member 31 and a damping component 33, the wave-shaped elastic member 31 and the damping component 33 are both disposed in the accommodating cavity, and are used for sequentially passing the transmission member through the wave-shaped elastic member 31 and the damping component 33, so as to define that the wave-shaped elastic member 31 has a first end 311 and a second end 311 which are disposed oppositely, the first end 311 elastically abuts against the surface of the first housing 11 close to the second housing 13, and the second end 311 elastically abuts against the damping component 33.

In one embodiment, the wave-shaped elastic member 31 may be a wavy multi-coil combined disc spring, or may be a counter wave spring or a laminated wave spring, and by selecting the wave-shaped elastic member 31, compared with a conventional cylindrical helical compression spring, under the condition of the same stress, the wave-shaped elastic member 31 is more compact in structure, only occupies one third or less space of the cylindrical helical compression spring, and can greatly shorten the length of the damper 100, thereby reducing the manufacturing cost of the damper 100, further reducing the cost of a strut of an automobile tailgate, and promoting market competitiveness; meanwhile, in the presence of the wave-shaped elastic member 31, the relative positions of the first shell 11 and the second shell 13 are adjusted by rotating the first shell 11, so that the compression degree of the wave-shaped elastic member 31 is adjusted, the extrusion force between the damping assemblies 33 is adjusted, the damping torque applied to the transmission member by the damping assemblies 33 is adjusted, and the wave-shaped elastic member 31 can also play a role in damping for a vehicle door stay rod.

Further, as shown in fig. 3, the damping component 33 includes a first positioning plate 331, a friction plate 333, and a second positioning plate 335, the first positioning plate 331, the friction plate 333, and the second positioning plate 335 are all disposed in the accommodating cavity, the first positioning plate 331 is provided with a first through hole 331a, the friction plate 333 is provided with a second through hole 333a, a hole wall of the second through hole 333a is provided with a connecting portion 333b for fixing the transmission element, the second positioning plate 335 is provided with a third through hole 335a, so that the transmission element sequentially penetrates through the first through hole 331a, the second through hole 333a, and the third through hole 335a, the first positioning plate 331 abuts against the second end 313, and a friction space is formed between the first positioning plate 331 and the second positioning plate 335, and the friction plate 333 is disposed in the friction space.

In one embodiment, the circumference of the first positioning plate 331 and the circumference of the second positioning plate 335 are both provided with a positioning block, the inner wall of the installation cavity is provided with a positioning groove adapted to the positioning block, so that the first positioning plate 331 and the second positioning plate 335 can be positioned and disposed in the accommodating cavity, meanwhile, the first positioning plate 331, the second positioning plate 335 and the friction plate 333 can be disassembled in the accommodating cavity more conveniently, of course, it is also possible that the peripheral edge of the first positioning plate 331 and the peripheral edge of the second positioning plate 335 are both provided with positioning grooves, the inner wall of the installation cavity is convexly provided with positioning blocks adapted to the positioning blocks, the friction plate 333 is disposed in the friction space, and two opposite side surfaces thereof can respectively rub against the first positioning plate 331 and the second positioning plate 335, the use efficiency of the friction plate 333 is improved, and meanwhile, the friction plate 333 can be ensured to be fixed in the accommodating cavity; in addition friction disc 333 can choose for use the material to be copper base wear-resisting combined material's friction disc 333 for use, also can choose for use the material to be carbon fiber friction material's friction disc 333, only need satisfy can provide sufficient frictional force can, simultaneously the connecting portion 333b of friction disc 333 can be thread structure or groove structure, when the driving medium is the screw rod, connecting portion 333b is promptly with screw rod complex thread structure, when the driving medium is the integral key shaft, connecting portion 333b is promptly with integral key shaft complex groove structure, do not specifically prescribe to connecting portion 333 b's structure here, can select according to the type of driving medium.

Furthermore, the utility model discloses still provide a door vaulting pole, door vaulting pole include the outer tube (not shown in the figure), are equipped with as above in the outer tube attenuator 100.

It should be noted that, the detailed structure of the damper 100 can refer to the above-mentioned embodiment of the damper 100, and is not described herein again; because the utility model discloses an above-mentioned attenuator 100 has been used in the door vaulting pole, consequently, the utility model discloses an embodiment of attenuator 100 includes all technical scheme of the whole embodiments of above-mentioned attenuator 100, and the technological effect who reaches is also identical, no longer gives details here.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A damper for a door stay, the door stay including a transmission, the damper comprising:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein an accommodating cavity is formed inside the shell; and

the damper body is arranged in the accommodating cavity and is in transmission connection with the transmission part;

wherein, a surface of the shell is provided with a relief groove.

2. The damper of claim 1, wherein the housing comprises a first housing and a second housing;

the first shell is connected with the second shell and encloses to form the accommodating cavity, and the surface of the first shell, which deviates from the second shell, forms the relief groove.

3. The damper of claim 2, wherein the surface of the first housing facing away from the second housing further defines a plurality of groves, the groves and the relief grooves being spaced along the periphery of the first housing.

4. The damper according to claim 3, wherein the number of the relief grooves is plural, the number of the catching grooves is plural, the plurality of relief grooves and the plurality of catching grooves are respectively arranged along the circumference of the first housing at intervals, and one catching groove is correspondingly arranged between two adjacent relief grooves;

5. The damper according to claim 2, wherein the first housing is provided with a first avoidance port communicating with the accommodation chamber, and the second housing is provided with a second avoidance port communicating with the accommodation chamber and corresponding to the first avoidance port, so that the transmission member sequentially penetrates through the first avoidance port, the damper body, and the second avoidance port.

6. The damper according to claim 2, wherein the surface of the second housing facing away from the first housing is convexly provided with a plurality of connecting blocks, and the connecting blocks are arranged at intervals along the circumference of the surface of the second housing and are used for connecting an external reduction gearbox.

7. The damper according to claim 2, wherein the first housing is provided with one of an internal thread and an external thread, and the second housing is provided with the other of the internal thread and the external thread, the internal thread being engaged with the external thread to screw-connect the first housing with the second housing.

8. The damper according to any one of claims 2 to 7, wherein the damper body comprises a wave-shaped elastic member and a damping component, and the wave-shaped elastic member and the damping component are both arranged in the accommodating cavity and used for enabling the transmission member to sequentially penetrate through the wave-shaped elastic member and the damping component;

the wave-shaped elastic piece is defined to have a first end and a second end which are oppositely arranged, the first end is elastically abutted against the surface, close to the second shell, of the first shell, and the second end is elastically abutted against the damping component.

9. The damper of claim 8, wherein the damping assembly includes a first spacer, a friction plate, and a second spacer;

the first positioning piece, the friction piece and the second positioning piece are all arranged in the accommodating cavity, the first positioning piece is provided with a first through hole, the friction piece is provided with a second through hole, the hole wall of the second through hole is provided with a connecting part for fixing the transmission piece, and the second positioning piece is provided with a third through hole for enabling the transmission piece to sequentially penetrate through the first through hole, the second through hole and the third through hole;

the first positioning piece is abutted against the second end, a friction space is formed between the first positioning piece and the second positioning piece, and the friction piece is arranged in the friction space.

10. A vehicle door stay characterized in that it comprises an outer sleeve in which a damper as claimed in any one of claims 1 to 9 is provided.