CN208502525U - Automobile power back door strut and damper - Google Patents
Automobile power back door strut and damper Download PDFInfo
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- CN208502525U CN208502525U CN201820958933.5U CN201820958933U CN208502525U CN 208502525 U CN208502525 U CN 208502525U CN 201820958933 U CN201820958933 U CN 201820958933U CN 208502525 U CN208502525 U CN 208502525U
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Abstract
The utility model discloses a kind of automobile power back door strut and damper, damper includes: shell, and the shell is equipped with installation cavity, and the inner wall of the installation cavity is equipped with the first through hole passed through for screw rod and the second through-hole；Damper assembly, the damper assembly are rotatably set in the installation cavity, and the damper assembly is connect with the screw drive；And waveform elastic part, the waveform elastic part is set in the installation cavity, and the waveform elastic part is sheathed on the screw rod, and the waveform elastic part is equipped with opposite first end and second end, the first end is abutted with the damper assembly, and the second end is abutted with the inner wall of the installation cavity.The automobile power back door strut and damper of the utility model, the length of damper is shorter, reduces manufacturing cost, to reduce the cost of automobile power back door strut, improves the market competitiveness.
Description
Technical field
The utility model relates to technical field of automobile parts, and in particular to a kind of automobile power back door strut and damping
Device.
Background technique
The electric tail gate of automobile is able to carry out the switching of open state and closed state by the effect of strut, in order to improve
The performance of strut, the outer tube of strut is interior to be equipped with damper, damping torque is provided using damper for screw rod, to increase support
The internal resistance of bar the phenomenon that falling under can preventing tail-gate from occurring in the handoff procedure of open state and closed state, has good
Hovering effect.
Traditional damper being set in strut outer tube, length is longer, leads to traditional damper manufacturing cost
It is higher, to increase the cost of automobile power back door strut, reduce the market competitiveness.
Summary of the invention
Based on this, it is necessary to provide a kind of automobile power back door strut and damper, the length of damper is shorter, reduces
Manufacturing cost improves the market competitiveness to reduce the cost of automobile power back door strut.
A kind of damper, comprising: shell, the shell are equipped with installation cavity, and the opposed inner walls of the installation cavity, which are equipped with, to be supplied
The first through hole and the second through-hole that screw rod passes through；Damper assembly, the damper assembly are rotatably set in the installation cavity, institute
Damper assembly is stated to connect with the screw drive；And waveform elastic part, the waveform elastic part are set in the installation cavity, institute
Waveform elastic part is stated to be sheathed on the screw rod, the waveform elastic part be equipped with opposite first end and second end, described first
End is abutted with the damper assembly, and the second end is abutted with the inner wall of the installation cavity.
When above-mentioned damper is installed, screw rod sequentially passes through first through hole, installation cavity and the second through-hole, so that shell is arranged
In on screw rod, damper assembly is set in installation cavity, and damper assembly can connect with respect to housing into rotation, damper assembly and screw drive
It connecing, the first end of waveform elastic part is connected on damper assembly, and the second end of waveform elastic part is connected on the inner wall of installation cavity,
When screw rod rotation, damper assembly applies in damping torque to screw rod, increases the frictional force that screw rod is subject to, and then increase support
Effective internal resistance of bar, the problem of falling under capable of preventing tail-gate from occurring, so that tail-gate has good hovering effect, meanwhile, waveform
Elastic component it is compact-sized, compared with traditional cylindrical screw pressure spring, in the identical situation of stress, waveform elastic part only accounts for circle
Column helical compression spring one third or smaller space, can greatly shorten the length of damper, to reduce the system of damper
This is caused, the cost of automobile power back door strut is thereby reduced, improves the market competitiveness.
Technical solution is illustrated further below:
The shell includes lower case and upper housing in one of the embodiments, and the lower case is equipped with the first cavity,
The bottom wall of first cavity is equipped with the first through hole, and the upper housing is equipped with the second cavity, the bottom of second cavity
Wall is equipped with second through-hole, and second cavity is connected with first cavity and cooperatively forms the installation cavity.
Shell includes that lower case and upper housing convenient for the installation and removal of damper assembly and waveform elastic part facilitate subsequent maintenance.
The open end of the lower case is equipped with the first internal screw thread, the opening of the upper housing in one of the embodiments,
End is equipped with the first external screw thread matched with first internal screw thread, when first external screw thread and the first internal screw thread screw thread
When connection, the first end is abutted against with the damper assembly, and the second end and the bottom wall of second cavity abut against.It is logical
The relative position of rotatable top shell adjustment upper housing and lower case is crossed, so as to adjust the compression degree of waveform elastic part.
The open end of the lower case is additionally provided with guide part in one of the embodiments,.The setting of guide part, so that on
Shell can accurately be cooperated with lower case, be tilted when upper housing being avoided to be threadedly coupled with lower case, and resistance is improved
The consistency of Buddhist nun's device assembly.
The lower case is equipped with connecting pin, the opening of the connecting pin and the lower case in one of the embodiments,
Relative spacing setting is held, the connecting pin is equipped with the first connecting portion for connecting with reduction gearbox.On the connecting pin of lower case
First connecting portion is set, realizes that the connection of damper and reduction gearbox cooperates using first connecting portion.
It is additionally provided on the lateral wall of the lower case and is matched for the inner wall with outer tube in one of the embodiments,
The first flange.The setting of first flange is so that the assembly of damper is more firm.
The inner wall of the installation cavity is equipped with the second flange along the length direction of the screw rod in one of the embodiments,
The inner wall of second flange and the installation cavity cooperatively forms mounting groove, and the waveform elastic part is set to the mounting groove
It is interior.Second flange mutually separates waveform elastic part with screw rod, prevents that movement interference occurs between waveform elastic part and screw rod.
The damper assembly is fixedly arranged on described including at least a piece of friction plate and at least two panels in one of the embodiments,
Locating plate on the inner wall of installation cavity, the friction plate are equipped with the third through-hole for passing through for the screw rod, and the third is logical
The inner wall in hole is equipped with the second connecting portion connecting with the screw drive, and the locating plate is equipped with for supplying the screw rod to pass through
Fourth hole, and the friction plate is equipped between two adjacent locating plates.It the two sides of rubbing surface can be with locating plate
Rubbing action occurs, the service efficiency of friction plate is improved, to reduce costs.
The periphery of the locating plate is equipped with locating slot in one of the embodiments, the inner wall of the installation cavity be equipped with
The locating piece that the locating slot matches.The cooperation of locating slot and locating piece is also convenient for dismounting locating plate and friction plate,
Facilitate and subsequent replaced or repaired.
A kind of automobile power back door strut, comprising: outer tube, the outer tube is interior to be equipped with above-mentioned damper.
When above-mentioned automobile power back door strut is installed, one end of motor and reduction gearbox in outer tube is sequentially connected, and slows down
The other end of case is connect with screw drive, and screw rod sequentially passes through first through hole, installation cavity and the second through-hole, so that shell is arranged
In on screw rod, damper assembly is set in installation cavity, and damper assembly can connect with respect to housing into rotation, damper assembly and screw drive
It connecing, the first end of waveform elastic part is connected on damper assembly, and the second end of waveform elastic part is connected on the inner wall of installation cavity,
When screw rod rotation, damper assembly applies in damping torque to screw rod, increases the frictional force that screw rod is subject to, and then increase support
Effective internal resistance of bar, the problem of falling under capable of preventing tail-gate from occurring, so that tail-gate has good hovering effect, meanwhile, waveform
Elastic component it is compact-sized, compared with traditional cylindrical screw pressure spring, in the identical situation of stress, waveform elastic part only accounts for circle
Column helical compression spring one third or smaller space, can greatly shorten the length of damper, to reduce the system of damper
This is caused, the cost of automobile power back door strut is thereby reduced, improves the market competitiveness.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the damper of one embodiment；
Fig. 2 is the structural schematic diagram of the damper of Fig. 1；
Fig. 3 is the bottom view of the damper of Fig. 1；
Fig. 4 is the cross-sectional view of the lower case of the damper of Fig. 1；
Fig. 5 is the structural schematic diagram of the lower case of the damper of Fig. 1；
Fig. 6 is the top view of the lower case of the damper of Fig. 1；
Fig. 7 is the cross-sectional view of the upper housing of the damper of Fig. 1；
Fig. 8 is the structural schematic diagram of the upper housing of the damper of Fig. 1；
Fig. 9 is the structural schematic diagram of the friction plate of the damper of Fig. 1；
Figure 10 is the structural schematic diagram of the locating plate of the damper of Fig. 1；
Figure 11 is the structural schematic diagram of the waveform elastic part of the damper of Fig. 1；
Figure 12 is the structural schematic diagram of the automobile power back door strut of one embodiment；
Figure 13 is the damper of the automobile power back door strut of Figure 12 and the cross-sectional view of reduction gearbox assembly；
Figure 14 is the damper of the automobile power back door strut of Figure 12 and the structural schematic diagram of reduction gearbox assembly.
Description of symbols:
10, strut, 100, damper, 110, shell, 111, lower case, 112, upper housing, 120, damper assembly, 121, rub
Pad, 122, locating plate, 130, waveform elastic part, 140, installation cavity, 200, screw rod, 300, reduction gearbox, 400, outer tube, 500,
Shockproof part, the 1111, first cavity, 1112, first through hole, the 1113, first internal screw thread, 1114, guide part, the 1115, first connection
Portion, the 1116, first flange, 1117, locating piece, the 1121, second cavity, the 1122, second through-hole, the 1123, first external screw thread,
1124, the second flange, 1125, mounting groove, 1211, third through-hole, 1212, second connecting portion, 1221, fourth hole, 1222, fixed
Position slot.
Specific embodiment
It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the protection scope of the utility model is not limited.
It should be noted that it can be directly another when element is referred to as " being set to ", " being fixedly arranged on " another element
On a element or there may also be elements placed in the middle.When element is referred to as " being fixedly arranged on " another element, or with another yuan
Part " is fixedly connected ", and can be the mode of being detachably fixed between them is also possible to non-removable fixed form.When a member
Part is considered as " connection ", " rotation connection " another element, it can be directly to another element or may be same
When there are centering elements.Term as used herein "vertical", "horizontal", "left" and "right", "upper", "lower" and similar
Statement for illustrative purposes only, be not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in constraint the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
The similar term such as " first " described in the utility model, " second ", " third " does not represent specific quantity and sequence,
It is only used for the differentiation of title.
Such as Fig. 1 to Fig. 3, shown in Fig. 4 and Fig. 7, one embodiment of the utility model discloses a kind of damper 100, packet
Include: shell 110, shell 110 are equipped with installation cavity 140, and the opposed inner walls of installation cavity 140 are equipped with pass through for screw rod 200 first
Through-hole 1112 and the second through-hole 1122；Damper assembly 120, damper assembly 120 are rotatably set in installation cavity 140, damping group
Part 120 and screw rod 200 are sequentially connected；And waveform elastic part 130, waveform elastic part 130 are set in installation cavity 140, waveform bullet
Property part 130 be sheathed on screw rod 200, waveform elastic part 130 be equipped with opposite first end and second end, first end and damper assembly
120 abut, and second end is abutted with the inner wall of installation cavity 140.
When the damper 100 of above-described embodiment is installed, screw rod 200 sequentially passes through first through hole 1112, installation cavity 140 and the
Two through-holes 1122, so that shell 110 is sheathed on screw rod 200, damper assembly 120 is set in installation cavity 140, damper assembly
120 can rotate relative to shell 110, and damper assembly 120 and screw rod 200 are sequentially connected, and the first end of waveform elastic part 130 abuts
In on damper assembly 120, the second end of waveform elastic part 130 is connected on the inner wall of installation cavity 140, when screw rod 200 rotates,
Damper assembly 120 applies in damping torque to screw rod 200, increases the frictional force that screw rod 200 is subject to, and then increase strut
Effective internal resistance, the problem of falling under capable of preventing tail-gate from occurring, so that tail-gate has good hovering effect, meanwhile, waveform elastic
Part 130 it is compact-sized, compared with traditional cylindrical screw pressure spring, in the identical situation of stress, waveform elastic part 130 is only accounted for
Cylindrical screw pressure spring one third or smaller space, can greatly shorten the length of damper 100, to reduce damper
100 manufacturing cost thereby reduces the cost of automobile power back door strut, improves the market competitiveness.
It needs to be illustrated, as shown in figure 11, the waveform elastic part 130 of the embodiments of the present invention refers to metal
With the elastic element of several peak valleys, such as wave spring on thin annulus, can be installed in small space, so that damper 100
Compact-sized, length shortens, while having reduction noise, reduces the function of vibration；The transmission of the embodiments of the present invention connects
It connects, can be and realized by way of gear engages, be also possible to realize by way of key and slot cooperation, flower can also be passed through
The form of key connection realizes that transmission efficiency is high.
As shown in Fig. 4 to Fig. 8, on the basis of the above embodiments, shell 110 includes lower case 111 and upper housing 112,
Lower case 111 is equipped with the first cavity 1111, and the bottom wall of the first cavity 1111 is equipped with first through hole 1112, and upper housing 112 is equipped with
Second cavity 1121, the bottom wall of the second cavity 1121 are equipped with the second through-hole 1122, and the second cavity 1121 and the first cavity
1111 are connected and cooperatively form installation cavity 140.Shell 110 includes lower case 111 and upper housing 112, is convenient for damper assembly 120
With the installation and removal of waveform elastic part 130, facilitate subsequent maintenance, when installation, screw rod 200 passed through into first through hole 1112,
So that lower case 111 is sheathed on screw rod 200, damper assembly 120 is sheathed on screw rod 200 with the transmission connection of screw rod 200 simultaneously
It is set in the first cavity 1111, waveform elastic part 130 is sheathed on screw rod 200, and make the first of waveform elastic part 130
End is abutted against with damper assembly 120, and screw rod 200 is passed through the second through-hole 1122, so that upper housing 112 is sheathed on screw rod 200,
Lower case 111 and upper housing 112 are attached, make the inner wall of the second cavity 1121 with the second end phase of waveform elastic part 130
It abuts, so as to easily be installed to damper 100.
It needs to be illustrated, the shell including lower case 111 and upper housing 112 of the embodiments of the present invention
110, can by be integrally formed be produced, assembled after can also individually being produced to lower case 111 and upper housing 112 and
At.
As shown in Fig. 4 to Fig. 8, optionally, the open end of lower case 111 is equipped with the first internal screw thread 1113, upper housing 112
Open end is equipped with the first external screw thread 1123 matched with the first internal screw thread 1113, when the first external screw thread 1123 and the first internal screw thread
When 1113 threaded connection, first end is abutted against with damper assembly 120, and second end and the bottom wall of the second cavity 1121 abut against.It will
The open end of upper housing 112 and the open end of lower case 111 cooperate, so that the first external screw thread 1123 is matched with the first internal screw thread 1113
It closes, adjusts the relative position of upper housing 112 and lower case 111, by rotatable top shell 112 so as to adjust waveform elastic part 130
Compression degree, and then adjust damper assembly 120 between extruding force, be applied on screw rod 200 so as to adjust damper assembly 120
Damping torque size.
As shown in Figures 4 and 5, further, the open end of lower case 111 is additionally provided with guide part 1114.Lower case 111
Guide part 1114 is arranged in open end, i.e., during the open end cooperation of the open end of upper housing 112 and lower case 111, upper casing
The open end of body 112 first passes through guide part 1114, for example, one section of smooth inclined-plane or plane, then just make the first external screw thread
1123 match with the first internal screw thread 1113, and the setting of guide part 1114 enables upper housing 112 accurately and lower case
111 are cooperated, and upper housing 112 is avoided to tilt when being threadedly coupled with lower case 111, improve the assembly of damper 100
Consistency ensure that stability and reliability that damper 100 works.
As shown in Figures 4 and 5, optionally, lower case 111 is equipped with connecting pin, the open end phase of connecting pin and lower case 111
Interval is arranged, connecting pin is equipped with the first connecting portion 1115 for connecting with reduction gearbox 300.The connecting pin of lower case 111
Upper setting first connecting portion 1115 realizes that the connection of damper 100 and reduction gearbox 300 cooperates using first connecting portion 1115, together
When, first connecting portion 1115 can also be cooperated with shockproof glue, crash roll or other shockproof parts, and damper not only can be absorbed
100 with reduction gearbox 300 install when dimensional tolerance, moreover it is possible to play the role of damping.First connection of the utility model embodiment
Portion 1115 can be limit rib, limiting slot or other structures that can be attached damper 100 and reduction gearbox 300.
As shown in Figures 4 and 5, optionally, it is additionally provided on the lateral wall of lower case 111 for the inner wall with outer tube 400
The first flange 1116 matched.First flange 1116 is set on the lateral wall of lower case 111, damper 100 is packed into and is supportted
When in the outer tube 400 of bar 10, so that the first flange 1116 is matched with the inner wall of outer tube 400, preferably it is interference fitted
The outer wall of damper 100 and the inner wall of outer tube 400 are welded as a whole by mode after the assembly is completed, so that damper 100
Assembly is more firm, improves the stability of damper 100, guarantees the normal work of strut 10.In the utility model embodiment,
Welding manner is laser welding, the position that can be welded energy transmitting to needs through outer tube 400, and weld strength is high.
Optionally, the inner wall of installation cavity 140 is equipped with the second flange 1124, the second flange along the length direction of screw rod 200
1124 cooperatively form mounting groove 1125 with the inner wall of installation cavity 140, and waveform elastic part 130 is set in mounting groove 1125.Second
Flange 1124 separates waveform elastic part 130 with 200 phase of screw rod, prevents from moving between waveform elastic part 130 and screw rod 200
Interference, meanwhile, mounting groove 1125 can also be oriented to the movement of waveform elastic part 130, guarantee that damper 100 works reliable
Property and stability.As shown in fig. 7, in one embodiment, the second flange 1124 is set on the bottom wall of the second cavity 1121, the
The mounting groove to be formed and be installed for waveform elastic part 130 is arranged in the side wall relative spacing of two flanges 1124 and the second cavity 1121
1125。
As shown in Fig. 1, Fig. 9 and Figure 10, based on any of the above embodiments, damper assembly 120 includes at least a piece of
Friction plate 121 and at least two panels are fixedly arranged on the locating plate 122 on the inner wall of installation cavity 140, and friction plate 121 is equipped with for for screw rod
200 third through-holes 1211 passed through, the inner wall of third through-hole 1211 are equipped with the second connecting portion being sequentially connected with screw rod 200
1212, locating plate 122 is equipped with the fourth hole 1221 for passing through for screw rod 200, and sets between two adjacent locating plates 122
There is friction plate 121.Friction plate 121 is sequentially connected by second connecting portion 1212 and screw rod 200, is driven when screw rod 200 rotates
Friction plate 121 rotates, and is set between two adjacent locating plates 122 due to friction plate 121, and the two sides of rubbing surface can be with
Rubbing action occurs for locating plate 122, improves the service efficiency of friction plate 121, to reduce costs, while can increase and rub
Pad 121 is applied to the damping torque of screw rod 200.It is copper-based that the friction plate 121 of the utility model embodiment, which can select material,
The friction plate 121 of wearing composite material, for coefficient of friction up to 0.35 or more, it is carbon fiber friction material that material, which also can be selected,
Friction plate 121 need to only meet and be capable of providing enough frictional force；The second connecting portion 1212 of the utility model embodiment with
The transmission connection of screw rod 200 can be and realize by way of gear engages, and be also possible to real by way of key and slot cooperation
It is existing.
In one embodiment, friction plate 121 is set as two panels, i.e. the first friction plate 121 and the second friction plate 121, fixed
Bit slice 122 is set as three pieces, i.e. the first locating plate 122, the second locating plate 122 and third locating plate 122, by the first friction plate
121 are set between the first locating plate 122 and the second locating plate 122, make two rubbing surfaces of the first friction plate 121 respectively with first
Locating plate 122 and the second locating plate 122 abut, and the second friction plate 121 is set to the second locating plate 122 and third locating plate
It between 122, abuts two rubbing surfaces of the second friction plate 121 with the second locating plate 122 and third locating plate 122 respectively, utilizes
Friction between two friction plates 121 and locating plate 122 enables tail-gate smoothly to run.
In another embodiment, friction plate 121 is set as a piece of, i.e. third friction plate 121, and locating plate 122 is set as
Third friction plate 121 is set to the 4th locating plate 122 and the 5th by two panels, i.e. the 4th locating plate 122 and the 5th locating plate 122
Between locating plate 122, support two rubbing surfaces of third friction plate 121 with the 4th locating plate 122 and the 5th locating plate 122 respectively
It connects, alleviates the weight of damper 100, save production cost.
As shown in Fig. 6 and Figure 10, optionally, the periphery of locating plate 122 is equipped with locating slot 1222, the inner wall of installation cavity 140
Equipped with the locating piece 1117 matched with locating slot 1222.It is fixed to be realized using the clamping engagement of locating slot 1222 and locating piece 1117
The fixation of bit slice 122, so that locating plate 122 will not be rotated with the rotation of friction plate 121, meanwhile, locating slot 1222 and positioning
The cooperation of block 1117 is also convenient for dismounting locating plate 122 and friction plate 121, facilitates and subsequent replaced or repaired.At it
In his embodiment, locating plate 122 can also be in such a way that pin hole cooperates or the mode of welding is fixedly arranged in installation cavity 140
Wall, only need to meet locating plate 122 will not rotate with the rotation of friction plate 121.
As shown in Figure 12 to Figure 14, one embodiment of the utility model also discloses a kind of automobile power back door strut
10, comprising: outer tube 400, the interior damper 100 for being equipped with any of the above-described embodiment of outer tube 400.
When the automobile power back door strut 10 of above-described embodiment is installed, one of motor and reduction gearbox 300 in outer tube 400
End transmission connection, the other end and screw rod 200 of reduction gearbox 300 are sequentially connected, and screw rod 200 sequentially passes through first through hole 1112, peace
It behave affectedly 140 and second through-hole 1122, so that shell 110 is sheathed on screw rod 200, damper assembly 120 is set in installation cavity 140
Interior, damper assembly 120 can be rotated relative to shell 110, and damper assembly 120 and screw rod 200 are sequentially connected, waveform elastic part 130
First end be connected on damper assembly 120, the second end of waveform elastic part 130 is connected on the inner wall of installation cavity 140, works as spiral shell
When bar 200 rotates, damper assembly 120 applies in damping torque to screw rod 200, increases the frictional force that screw rod 200 is subject to, in turn
The problem of increasing effective internal resistance of strut, falling under capable of preventing tail-gate from occurring, so that tail-gate has good hovering effect, together
When, waveform elastic part 130 it is compact-sized, compared with traditional cylindrical screw pressure spring, in the identical situation of stress, waveform bullet
Property part 130 only accounts for cylindrical screw pressure spring one third or smaller space, can greatly shorten the length of damper 100, thus
The manufacturing cost for reducing damper 100 thereby reduces the cost of automobile power back door strut, improves the market competitiveness.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the constraints to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of damper characterized by comprising
Shell, the shell are equipped with installation cavity, the opposed inner walls of the installation cavity be equipped with the first through hole passed through for screw rod and
Second through-hole；
Damper assembly, the damper assembly are rotatably set in the installation cavity, the damper assembly and the screw drive
Connection；And
Waveform elastic part, the waveform elastic part are set in the installation cavity, and the waveform elastic part is sheathed on the screw rod
On, the waveform elastic part is equipped with opposite first end and second end, and the first end abuts with the damper assembly, and described the
Two ends are abutted with the inner wall of the installation cavity.
2. damper according to claim 1, which is characterized in that the shell includes lower case and upper housing, under described
Shell is equipped with the first cavity, and the bottom wall of first cavity is equipped with the first through hole, and the upper housing is equipped with the second cavity,
The bottom wall of second cavity is equipped with second through-hole, and second cavity is connected and cooperates with first cavity
Form the installation cavity.
3. damper according to claim 2, which is characterized in that the open end of the lower case is equipped with the first internal screw thread,
The open end of the upper housing is equipped with the first external screw thread matched with first internal screw thread, when first external screw thread and institute
When stating the threaded connection of the first internal screw thread, the first end is abutted against with the damper assembly, the second end and second sky
The bottom wall of chamber abuts against.
4. damper according to claim 3, which is characterized in that the open end of the lower case is additionally provided with guide part.
5. damper according to claim 2, which is characterized in that the lower case be equipped with connecting pin, the connecting pin with
The open end relative spacing of the lower case is arranged, and the connecting pin is equipped with the first connecting portion for connecting with reduction gearbox.
6. damper according to claim 2, which is characterized in that be additionally provided on the lateral wall of the lower case for it is outer
The first flange that the inner wall of casing matches.
7. damper according to claim 1, which is characterized in that the inner wall of the installation cavity is along the length side of the screw rod
To the second flange is equipped with, the inner wall of second flange and the installation cavity cooperatively forms mounting groove, and the waveform elastic part is set
It is placed in the mounting groove.
8. damper according to any one of claims 1 to 7, which is characterized in that the damper assembly includes at least a piece of
Friction plate and at least two panels are fixedly arranged on the locating plate on the inner wall of the installation cavity, and the friction plate is equipped with for supplying the screw rod
The third through-hole passed through, the inner wall of the third through-hole are equipped with the second connecting portion connecting with the screw drive, the positioning
Piece is equipped with the fourth hole for passing through for the screw rod, and the friction plate is equipped between two adjacent locating plates.
9. damper according to claim 8, which is characterized in that the periphery of the locating plate is equipped with locating slot, the peace
The inner wall behaveing affectedly is equipped with the locating piece matched with the locating slot.
10. a kind of automobile power back door strut characterized by comprising outer tube, the outer tube is interior to be equipped with such as claim
1 to 9 described in any item dampers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958933.5U CN208502525U (en) | 2018-06-20 | 2018-06-20 | Automobile power back door strut and damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958933.5U CN208502525U (en) | 2018-06-20 | 2018-06-20 | Automobile power back door strut and damper |
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| CN208502525U true CN208502525U (en) | 2019-02-15 |
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| CN201820958933.5U Active CN208502525U (en) | 2018-06-20 | 2018-06-20 | Automobile power back door strut and damper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110130774A (en) * | 2019-05-01 | 2019-08-16 | 东阳市甘特电气有限公司 | A kind of tail-gate push rod |
| CN110173185A (en) * | 2019-06-21 | 2019-08-27 | 芜湖玮博泰克汽车技术有限公司 | A kind of automobile power back door balancing pole and its assembly method |
| CN110630134A (en) * | 2019-10-28 | 2019-12-31 | 瑞昂汽车部件(苏州)有限公司 | Damping structure of electric tail gate stay bar |
| CN111043204A (en) * | 2019-12-27 | 2020-04-21 | 太仓卡兰平汽车零部件有限公司 | Stainless steel wave spring for electric stay bar damper |
| CN112922486A (en) * | 2019-12-06 | 2021-06-08 | 爱信精机株式会社 | Vehicle door stop device |
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- 2018-06-20 CN CN201820958933.5U patent/CN208502525U/en active Active
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| CN110173185B (en) * | 2019-06-21 | 2023-10-31 | 芜湖玮博泰克汽车技术有限公司 | Balance rod for automobile electric tail door and assembly method thereof |
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