CN212837298U - Electric stay bar and car - Google Patents

Abstract

The utility model relates to an electronic vaulting pole and car, this electronic vaulting pole includes: an outer sleeve; a drive assembly mounted within the outer sleeve, the drive assembly including a power source; the first fixing head is connected to one end of the outer sleeve and provided with a crimping surface opposite to the end surface of the power source, a mounting hole is formed in the first fixing head, one end of the mounting hole penetrates through the crimping surface, and the other end of the mounting hole penetrates through the outer surface of the first fixing head; waterproof gum cover, including the cover spool and locate the waterproof flange of cover spool one end periphery, waterproof flange press from both sides tightly in the crimping face with between the terminal surface of power supply, the cover spool via the mounting hole is worn out outside the first fixed head, the pencil of power supply is worn to be arranged in the cover spool. The waterproof gum cover of this scheme electronic vaulting pole is simple with the mounting means of fixed head, and assembly stability is high, can effectively promote waterproof grade, and effectively reduce cost, improves the commonality.

Description

Electric stay bar and car

Technical Field

The utility model relates to an auto-parts technical field especially relates to an electronic vaulting pole and car.

Background

Electric stay bar has been widely used in the automobile field, through electric stay bar drive car tail-gate, and can realize the automatic of car tail-gate and open and shut, has greatly promoted the convenience in use of car. The waterproof performance of the electric stay bar is also one of the key indexes for determining the performance of the product.

At present, an electric stay bar is generally connected with a waterproof rubber sleeve on a fixed head of an outer sleeve, a wire harness of a power source (such as a motor) in the outer sleeve enters the waterproof rubber sleeve after passing through the fixed head, and the waterproof rubber sleeve plays a waterproof protection role. The assembly mode between the waterproof gum cover of traditional electronic vaulting pole and the fixed head has following three kinds: the first type is that the waterproof rubber sleeve and the fixing head are assembled in a clamping manner, the installation is difficult in the manner, if the waterproof rubber sleeve and the fixing head are not installed in place, the risk of failure is caused, and a convex hull capable of being clamped into the waterproof rubber sleeve is required to be formed on the fixing head, so that the installation space is limited to a certain extent, the universality is poor, the mold is complex, and the cost is high; the second is to adopt waterproof glue to bond, the installation of this kind of mode is troublesome, the requirement to the consumption and daubing homogeneity of waterproof glue is higher, the cost is higher too; the third is to wrap the waterproof rubber sleeve directly outside the fixed head, which increases the outer diameter of the product and also needs waterproof rubber to match with waterproof.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an electric stay bar and an automobile, in order to solve the above problems, the waterproof rubber sleeve of the electric stay bar is simply assembled with the fixing head, the assembling stability is high, the waterproof grade can be effectively improved, the cost of the electric stay bar can be effectively reduced, and the universality is improved.

An electrically powered brace comprising:

an outer sleeve;

a drive assembly mounted within the outer sleeve, the drive assembly including a power source;

the first fixing head is connected to one end of the outer sleeve and provided with a crimping surface opposite to the end surface of the power source, a mounting hole is formed in the first fixing head, one end of the mounting hole penetrates through the crimping surface, and the other end of the mounting hole penetrates through the outer surface of the first fixing head; and

the waterproof gum cover, the waterproof gum cover includes the cover spool and locates the waterproof flange of cover spool one end periphery, waterproof flange press from both sides tightly in the crimping face with between the terminal surface of power supply, the cover spool via the mounting hole is worn out outside the first fixed head, the pencil of power supply is worn to arrange in the cover spool.

When above-mentioned electronic vaulting pole is carrying out the assembly of waterproof gum cover and first fixed head, the mounting hole of first fixed head is passed with the mantle line pipe of waterproof gum cover to the accessible installation pincers, the waterproof flange of waterproof gum cover and the crimping face looks butt of first fixed head, the one end of power supply is installed to the outer tube with first fixed head connection again, the crimping face of first fixed head can press from both sides waterproof flange tight fixedly with the terminal surface of power supply, the pencil of power supply is worn to arrange in the mantle line intraductally, thereby realize the assembly between waterproof gum cover and the first fixed head. The assembling mode is simple, the assembling efficiency can be effectively improved, the problems of in-place installation and waterproof glue control amount do not need to be considered in the assembling process, and the assembling stability is higher; simultaneously, make through waterproof flange and realize reliable sealing connection between first fixed head and the power supply, can play fine waterproof effect to the power supply pencil through the cover spool to can effectively promote waterproof grade. In addition, compare in the assembly scheme of the first card income formula of mentioning in the background art, the structure of the first fixed head of the electronic vaulting pole of this scheme is simpler, can effectively reduce mould cost, and then makes the cost reduction of electronic vaulting pole, and need not to set up the convex closure on the first fixed head, does not have the restriction to installation space, and the commonality is higher.

In one embodiment, the crimping surface is provided with a groove corresponding to the outer periphery of the mounting hole, and a waterproof boss is arranged on the surface of the waterproof flange, which is matched with the crimping surface, and is accommodated in the groove.

In one embodiment, a waterproof convex rib is arranged on one surface of the waterproof boss matched with the bottom wall of the groove.

In one embodiment, the waterproof rib surrounds the outer periphery of the sleeve pipe.

In one embodiment, the number of the waterproof ribs is at least two, and each waterproof rib radially surrounds the outer periphery of the conduit.

In one embodiment, the first fixing head comprises a fixing part and an insertion part connected with the fixing part, the insertion part is inserted into the outer sleeve, a containing cavity is formed in one surface, far away from the fixing part, of the insertion part, an end cover of the power source is contained in the containing cavity, and the inner bottom surface of the containing cavity forms the crimping surface.

In one embodiment, the insertion part is in interference fit with the outer sleeve and is fixed by welding.

In one embodiment, the driving assembly further comprises a reduction gearbox, a screw rod, an inner guide pipe and an outer guide pipe, the reduction gearbox is connected with the driving end of the power source, the screw rod is in transmission connection with the reduction gearbox, one end of the inner guide pipe is in threaded transmission connection with the screw rod, the other end of the inner guide pipe is connected with a second fixing head, the outer guide pipe is sleeved on the periphery of the inner guide pipe, a guide sleeve in sliding fit with the inner guide pipe is arranged at one end, close to the second fixing head, of the outer guide pipe, and the other end of the outer guide pipe is connected and fixed with the outer guide pipe.

In one embodiment, the guide sleeve is a soft guide sleeve made of a soft material.

An automobile comprises the electric stay bar.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

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

Fig. 1 is a schematic structural view of an electric stay according to an embodiment of the present invention;

FIG. 2 is an exploded view of the electric stay of FIG. 1;

FIG. 3 is a schematic view of a partial cross-sectional structure of the electric stay of FIG. 1;

FIG. 4 is a cross-sectional view of a first retaining head according to an embodiment;

fig. 5 is a partial structural schematic view of a waterproof rubber sleeve according to an embodiment.

10. An outer sleeve; 20. a drive assembly; 21. a power source; 211. an end cap; 22. a reduction gearbox; 23. a screw; 24. an inner conduit; 241. a nut seat; 25. an outer catheter; 251. a guide sleeve; 252. a connecting seat; 26. a bearing; 27. a waterproof rubber mat; 28. a damper; 29. a transfer seat; 30. a first fixed head; 31. a crimping surface; 32. mounting holes; 33. a groove; 34. a fixed part; 35. a plug-in part; 351. an accommodating cavity; 36. a positioning flange; 40. a waterproof rubber sleeve; 41. sleeving a wire pipe; 42. a waterproof flange; 43. a waterproof boss; 44. waterproof convex ribs; 50. an inner sleeve; 60. a second fixed head; 70. and (5) pressing a spring.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides an electric brace including an outer sleeve 10, a driving assembly 20, a first fixing head 30, and a waterproof rubber sleeve 40. A drive assembly 20 is mounted within the outer sleeve 10, the drive assembly 20 including a power source 21. The first fixing head 30 is connected to one end of the outer tube 10. Referring to fig. 3 and 4, the first fixing head 30 has a pressing surface 31 opposite to the end surface of the power source 21, a mounting hole 32 is formed in the first fixing head 30, one end of the mounting hole 32 penetrates through the pressing surface 31, and the other end penetrates through the outer surface of the first fixing head 30. Referring to fig. 3 and 5, the waterproof rubber sleeve 40 includes a sleeve 41 and a waterproof flange 42 disposed on the outer periphery of one end of the sleeve 41, the waterproof flange 42 is clamped between the crimping surface 31 and the end surface of the power source 21, the sleeve 41 penetrates the first fixing head 30 through the mounting hole 32, and the wiring harness of the power source 21 penetrates the sleeve 41. The power source 21 may be embodied as a motor.

It can be understood that the waterproof rubber sleeve 40 is generally made of a flexible material, and accordingly, the sleeve pipe 41 and the waterproof flange 42 are also made of a flexible material and have certain elasticity, so that when the first fixing head 30 is matched with the power source 21 to press the waterproof flange 42 tightly, the waterproof flange 42 can deform to a certain extent, thereby achieving a reliable sealing connection effect. After the bushing 41 is passed out of the mounting hole 32, the outer peripheral surface of the bushing 41 can seal the outer peripheral edge of the mounting hole 32.

When the waterproof rubber sleeve 40 and the first fixing head 30 are assembled, the sleeving pipe 41 of the waterproof rubber sleeve 40 can penetrate through the mounting hole 32 of the first fixing head 30 through the mounting pliers, the waterproof flange 42 of the waterproof rubber sleeve 40 is abutted to the pressing surface 31 of the first fixing head 30, the first fixing head 30 is connected to one end, provided with the power source 21, of the outer sleeve 10, the pressing surface 31 of the first fixing head 30 and the end surface of the power source 21 can clamp and fix the waterproof flange 42, the wiring harness of the power source 21 penetrates through the sleeving pipe 41, and therefore assembly between the waterproof rubber sleeve 40 and the first fixing head 30 is achieved. The assembling mode is simple, the assembling efficiency can be effectively improved, the problems of in-place installation and waterproof glue control amount do not need to be considered in the assembling process, and the assembling stability is higher; meanwhile, the waterproof flange 42 enables reliable sealing connection between the first fixing head 30 and the power source 21, and the wiring harness of the power source 21 can be well waterproofed through the bushing pipe 41, so that the waterproof grade can be effectively improved. In addition, compare in the card income formula assembly scheme that mentions in the background art, the first fixed head 30 of the electronic vaulting pole of this scheme's structure is simpler, can effectively reduce the mould cost, and then makes the cost reduction of electronic vaulting pole, and need not to set up the convex closure on the first fixed head 30, does not have the restriction to installation space, and the commonality is higher.

Further, referring to fig. 4 and 5, the pressing surface 31 is provided with a groove 33 corresponding to the outer circumference of the mounting hole 32, a waterproof boss 43 is provided on a surface of the waterproof flange 42 matching with the pressing surface 31, and the waterproof boss 43 is accommodated in the groove 33. During assembly, the waterproof boss 43 is pressed into the groove 33, so that rapid positioning and assembly between the waterproof flange 42 and the pressing surface 31 can be realized, and the assembly efficiency and the assembly stability can be further improved.

Further, as shown in fig. 5, a waterproof rib 44 is provided on a surface of the waterproof boss 43 that is matched with the bottom wall of the groove 33. After the first fixing head 30 is assembled, the pressing surface 31 extrudes the waterproof convex rib 44, the waterproof convex rib 44 generates certain deformation, and the sealing reliability between the pressing surface 31 and the waterproof boss 43 can be further ensured, so that the waterproof performance can be further improved.

Optionally, waterproof rib 44 is provided in a ring shape, and surrounds the periphery of bushing pipe 41, so that each position of waterproof boss 43 around bushing pipe 41 circumference can be reliably sealed with crimping surface 31 through waterproof rib 44, and waterproof performance is further improved. Preferably, the number of the waterproof ribs 44 is at least two, and each waterproof rib 44 radially surrounds the outer periphery of the conduit 41, so that a multi-stage waterproof effect can be achieved.

Further, in the present embodiment, the wire casing 41 has a bellows-like structure. The sleeve pipe 41 is a corrugated pipe, and the length of the sleeve pipe is telescopic, so that the length of the wire harness of the power source 21 can be adjusted, and the waterproof rubber sleeve 40 has good applicability.

Further, referring to fig. 3 and 4, in the present embodiment, the first fixing head 30 includes a fixing portion 34 and an inserting portion 35 connected to the fixing portion 34, the inserting portion 35 is inserted into the outer sleeve 10, a receiving cavity 351 is disposed on a surface of the inserting portion 35 away from the fixing portion 34, the end cap 211 of the power source 21 is received in the receiving cavity 351, and a pressure contact surface 31 is formed on an inner bottom surface of the receiving cavity 351. In particular, the fixing portion 34 is a ball head structure for connecting with other external components, for example, the first fixing head 30 can be connected with the tail gate of the automobile through the fixing portion 34. The inserting part 35 is inserted into the outer sleeve 10, the inserting part 35 and the outer sleeve 10 can be connected together through processes such as riveting and welding, the end cover 211 can be at least partially accommodated in the accommodating cavity 351, the inner bottom surface (namely, the crimping surface 31) of the accommodating cavity 351 is matched with the end cover 211 of the power source 21 to fix the waterproof flange 42 in a crimping manner, and the accommodating cavity 351 can also play a good limiting role in the power source 21, so that the power source 21 is assembled more stably.

Further, in the present embodiment, the insertion portion 35 is in interference fit with the outer sleeve 10 and is fixed by welding, so that the assembly process can be simplified, and the assembly between the first fixing head 30 and the outer sleeve 10 is more reliable.

Alternatively, as shown in fig. 4, a positioning flange 36 is provided on the outer periphery of the position where the fixing portion 34 and the insertion portion 35 are connected, and the end surface of the outer tube 10 is in abutting engagement with the positioning flange 36. After the inserting portion 35 is completely inserted into the outer sleeve 10, the end surface of the outer sleeve 10 abuts against the positioning flange 36, so that the first fixing head 30 can be positioned well.

Referring to fig. 1 and 2, in the above embodiment, the electric stay includes an outer sleeve 10, an inner sleeve 50, a driving assembly 20, a first fixing head 30 and a second fixing head 60. The first fixing head 30 is connected to one end of the outer sleeve 10, the second fixing head 60 is connected to one end of the inner sleeve 50, the other end of the inner sleeve 50 is telescopically inserted into the outer sleeve 10, the driving assembly 20 is installed in the outer sleeve 10 and is in driving connection with the inner sleeve 50, and the inner sleeve 50 can be driven by the driving assembly 20 to linearly extend and retract relative to the outer sleeve 10. Wherein, the power supply 21 of drive assembly 20 is installed in the outer tube 10 and is close to the one end of first fixed head 30, and waterproof gum cover 40 presss from both sides with power supply 21 through first fixed head 30 and fixes, and the pencil of power supply 21 can be drawn forth via waterproof gum cover 40 to realize better water-proof effects.

Further, on the basis of the above embodiment, the power source 21 is a motor, the driving assembly 20 further includes a reduction box 22, a screw 23, an inner conduit 24 and an outer conduit 25, the reduction box 22 is in transmission connection with an output shaft of the power source 21, the screw 23 is in transmission connection with the reduction box 22, one end of the inner conduit 24 is in threaded transmission connection with the screw 23, the other end of the inner conduit 24 is connected with the second fixing head 60, the outer conduit 25 is sleeved on the periphery of the inner conduit 24, one end of the outer conduit 25 close to the second fixing head 60 is provided with a guide sleeve 251 in sliding fit with the inner conduit 24, and the other end of the outer conduit 25 is connected and fixed with the outer sleeve 10.

When the electric support rod works, the screw 23 is driven to rotate by the power source 21 and the reduction gearbox 22, and then the inner conduit 24 can be driven to do linear telescopic motion relative to the screw 23, and the inner conduit 24 and the inner sleeve 50 are connected through the second fixing head 60, so that the inner sleeve 50 can be driven to do linear telescopic motion relative to the outer sleeve 10. The inner conduit 24 and the second fixing head 60 can be connected together by riveting, welding or screwing. For example, in the present embodiment, the inner conduit 24 is press-fit connected to the second fixing head 60. Moreover, the outer guide tube 25 can guide the linear motion of the inner guide tube 24 well, and the guide sleeve 251 is arranged at one end of the outer guide tube 25 to further improve the guide effect. Optionally, the guide sleeve 251 is a soft guide sleeve made of a soft material, and can play a good role in guiding and preventing water. Optionally, the guide sleeve 251 is integrally formed at the end of the outer catheter 25 by adopting a secondary encapsulation process, so that the structure is more stable.

Further, as shown in fig. 2, in the present embodiment, a nut seat 241 is provided at an end of the inner conduit 24 away from the second fixing head 60, and the screw 23 is screwed with an inner circumferential surface of the nut seat 241. Wherein, the nut seat 241 can be integrally formed at the end of the inner conduit 24 by a secondary encapsulation process, thereby ensuring the assembling reliability between the nut seat 241 and the inner conduit 24. Of course, in other embodiments, the nut holder 241 and the inner conduit 24 may be connected by bonding or clipping. Optionally, the outer circumferential surface of the nut seat 241 is provided with a plurality of guide ribs extending along the axial direction of the inner conduit 24, the inner circumferential surface of the outer conduit 25 is provided with guide grooves extending along the axial direction, and the guide ribs are in sliding fit with the guide grooves, so that the stability of the linear motion of the inner conduit 24 can be further ensured.

Further, in the present embodiment, an end of the outer catheter 25 away from the second fixing head 60 is provided with a connecting seat 252, and the connecting seat 252 is connected and fixed with the outer sleeve 10, for example, the connecting seat 252 and the outer sleeve 10 may be in an interference fit and fixed by welding, so as to ensure that the outer catheter 25 can be stably fixed in the outer sleeve 10. One end of the screw 23 passes through the connecting seat 252 to be connected with the reduction box 22, and the screw 23 and the reduction box 22 can be in transmission connection through a spline, so that the transmission reliability is ensured. In addition, a bearing chamber is arranged on one side of the connecting seat 252 close to the first fixing head 30, a bearing 26 is arranged in the bearing chamber, the screw 23 can be fixed to an inner ring of the bearing 26 through clamping ring press riveting, and a gasket and a waterproof rubber pad 27 can be arranged between the bearing 26 and the end part of the outer guide pipe 25, so that a waterproof effect is achieved.

Optionally, in this embodiment, the driving assembly 20 further includes a damper 28, the damper 28 is located between the reduction gearbox 22 and the connecting seat 252, the screw 23 passes through the damper 28, and the screw 23 is in transmission connection with the damper 28. Wherein, the damper 28 can be in interference fit with the outer sleeve 10 and fixed by welding to ensure the installation stability. The electric stay bar can have a better damping effect by arranging the damper 28 so as to further ensure the telescopic stability of the electric stay bar. In addition, a compression spring 70 is further sleeved on the periphery of the outer conduit 25, one end of the compression spring 70 is elastically abutted to the inner end face of the inner sleeve 50, and the other end is elastically abutted to the partition portion on the inner circumferential surface of the outer sleeve 10. Through the cooperation of the power source 21, the reduction gearbox 22, the damper 28 and the pressure spring 70, the electric support rod can hover at any position.

Further, in the present embodiment, an adapter 29 is further disposed between the damper 28 and the reduction box 22, and the adapter 29 is connected and fixed with the outer sleeve 10, for example, the adapter 29 may be in interference fit with the outer sleeve 10 and fixed by welding. The power source 21 and the reduction gearbox 22 can be clamped and fixed through the matching of the adapter 29 and the first fixing head 30, so that the axial movement of the power source 21 and the reduction gearbox 22 during working can be prevented. Optionally, the adapter 29 is snap-fit to the reduction gearbox 22 to prevent the reduction gearbox 22 from spinning during operation. For example, in this embodiment, the end face of the reduction gearbox 22 is provided with a clamping groove, the end face of the adapter 29 is provided with a clamping column clamped with the clamping groove, and through the matching of the clamping groove and the clamping column, the reduction gearbox 22 and the adapter 29 can be quickly positioned and assembled conveniently, and meanwhile, the reduction gearbox 22 can be well prevented from rotating.

The utility model discloses still provide an automobile, this automobile include automobile body, rear of a vehicle door and as above arbitrary embodiment electronic vaulting pole. Wherein, the one end of electronic vaulting pole is installed to the fixing base of car tail-gate through first fixed head 30 on, and the other end of electronic vaulting pole is installed on the fixing base of automobile body through second fixed head 60, drives electronic vaulting pole through drive assembly 20 and carries out sharp concertina movement, and then can realize the automation of car tail-gate and open and close. The specific structure of the electric stay bar refers to the above embodiments, and since the automobile adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. An electric stay, comprising:

an outer sleeve;

a drive assembly mounted within the outer sleeve, the drive assembly including a power source;

the first fixing head is connected to one end of the outer sleeve and provided with a crimping surface opposite to the end surface of the power source, a mounting hole is formed in the first fixing head, one end of the mounting hole penetrates through the crimping surface, and the other end of the mounting hole penetrates through the outer surface of the first fixing head; and

the waterproof gum cover, the waterproof gum cover includes the cover spool and locates the waterproof flange of cover spool one end periphery, waterproof flange press from both sides tightly in the crimping face with between the terminal surface of power supply, the cover spool via the mounting hole is worn out outside the first fixed head, the pencil of power supply is worn to arrange in the cover spool.

2. The electric stay bar according to claim 1, wherein the crimping surface has a groove corresponding to the outer circumference of the mounting hole, and a waterproof boss is provided on the surface of the waterproof flange that is engaged with the crimping surface, and the waterproof boss is received in the groove.

3. The electric stay bar of claim 2, wherein a waterproof rib is provided on the surface of the waterproof boss which is matched with the bottom wall of the groove.

4. The electric stay of claim 3, wherein the waterproof bead surrounds the outer periphery of the bushing.

5. The electric stay according to claim 4, wherein the waterproof ribs are provided in at least two numbers, and each of the waterproof ribs radially surrounds the outer periphery of the conduit.

6. The electric stay bar of claim 1, wherein the first fixing head comprises a fixing portion and an insertion portion connected to the fixing portion, the insertion portion is inserted into the outer sleeve, a receiving cavity is formed on a surface of the insertion portion away from the fixing portion, an end cap of the power source is received in the receiving cavity, and the inner bottom surface of the receiving cavity forms the pressing surface.

7. The electric stay of claim 6 wherein the insertion part is in interference fit with the outer sleeve and is fixed by welding.

8. The electric support rod of any one of claims 1 to 7, wherein the drive assembly further comprises a reduction gearbox, a screw, an inner conduit and an outer conduit, the reduction gearbox is connected with the drive end of the power source, the screw is in transmission connection with the reduction gearbox, one end of the inner conduit is in threaded transmission connection with the screw, the other end of the inner conduit is connected with a second fixing head, the outer conduit is sleeved on the periphery of the inner conduit, a guide sleeve in sliding fit with the inner conduit is arranged at one end of the outer conduit close to the second fixing head, and the other end of the outer conduit is connected and fixed with the outer conduit.

9. The electric stay of claim 8 wherein the guide sleeve is a soft guide sleeve made of a soft material.

10. An automobile, characterized by comprising an electric stay according to any one of claims 1 to 9.

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