CN211115370U - Novel automobile electric tail door supporting rod - Google Patents

Abstract

The utility model provides an auto electric tail-gate bracing piece, it relates to auto-parts technical field. It includes: outer tube, interior sleeve pipe, motor gear box, lead screw, bearing riveting piece, motor end bulb, spring end bulb, silk sleeve subassembly, spring end riveting ring and spring assembly, in addition, still include: the waterproof mechanisms are arranged in the outer sleeve and the inner sleeve and are used for sealing and waterproofing between the inner sleeve and the outer sleeve, between the outer sleeve and the spring end ball head, between the inner sleeve and the motor end ball head and between the bearing riveting piece and the screw rod; and the riveting mechanism is arranged on the supporting rod and used for performing riveting assembly between a motor end ball head and an inner sleeve, between a bearing riveting piece and the inner sleeve, between a screw rod and a wire sleeve assembly, between a spring end riveting ring and an outer sleeve and between a spring end ball head and the wire sleeve assembly. The support rod has the advantages of good anti-pulling-off effect, high tensile strength, long service life, good waterproof effect and stable waterproof performance.

Description

Novel automobile electric tail door supporting rod

Technical Field

The utility model relates to the technical field of auto-parts, concretely relates to novel electronic tail-gate bracing piece of car.

Background

The electric tail gate supporting rod generally comprises an outer sleeve and an inner sleeve which are assembled with each other and a motor driving device which converts the rotary motion of a motor into the linear reciprocating motion of the supporting rod, optimal design of the electric supporting rod is realized through motion mechanics calculation, the optimal solution is realized through the torque of an adjustable motor, the gear box speed ratio, the lead screw lead, the spring force value and other variables, and then the smooth motion and the synchronization of two rods are realized through the control of the ECU controller by the double electric supporting rods.

When the trunk tail door of the automobile is opened, the trunk tail door needs a support rod to fixedly support the trunk tail door. And current bracing piece is because frequency of use is high, and the live time is long, very easily causes the inside part of bracing piece not hard up to appear, and then makes the support noise and potential safety hazard appear when using, and influences the holistic life of bracing piece. Therefore, in order to ensure that the components inside the supporting rod are good and the use process is safe, a novel automobile electric tail gate supporting rod is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide an electronic tail-gate bracing piece of car, have support stable, prevent drawing to take off effectual, tensile strength is high, long service life, water-proof effects are good, waterproof performance is stable advantage.

In order to achieve the above object, the utility model adopts the following technical scheme: an automotive power tailgate support bar comprising: outer tube, interior sleeve pipe, motor gear box, lead screw, bearing riveting piece, motor end bulb, spring end bulb, silk sleeve subassembly, spring end riveting ring and spring assembly, the bracing piece still includes: the waterproof mechanisms are arranged in the outer sleeve and the inner sleeve and are used for sealing and waterproofing between the inner sleeve and the outer sleeve, between the outer sleeve and the spring end ball head, between the inner sleeve and the motor end ball head and between the bearing riveting piece and the screw rod; and the riveting mechanism is arranged on the supporting rod and used for performing riveting assembly on the motor end ball head and the inner sleeve, the bearing riveting piece and the inner sleeve, the screw rod and the wire sleeve component, the spring end riveting ring and the outer sleeve and the spring end ball head and the wire sleeve component.

The waterproofing mechanism includes: the first waterproof structure is arranged at the joint of the outer sleeve and the inner sleeve; the second waterproof structure is arranged at the joint of the spring end ball head and the outer sleeve; the third waterproof structure is arranged between the bearing riveting piece and the inner sleeve; and the fourth waterproof structure is arranged between the motor end ball head and the motor gear box.

The first waterproof structure includes: the annular waterproof part is arranged on the outer sleeve and close to one end of the inner sleeve, and the connecting part is arranged on one side, far away from the outer sleeve, of the annular waterproof part and is attached to the outer side wall of the inner sleeve; the annular waterproof piece is provided with a plurality of bulges, and the outer sleeve is provided with clamping holes for clamping the bulges.

The second waterproof structure is a spring end decorative sleeve which is sleeved on the outer sleeve, is far away from one side of the inner sleeve and is in interference fit with the ball head of the spring end.

Be provided with draw-in groove and holding tank on the bearing riveting spare, third water proofing structure includes: the first sealing ring is arranged on one side, close to the motor gear box, of the screw rod; the waterproof bearing is assembled on the first sealing ring and accommodated in the accommodating groove; the bearing sealing ring is sleeved on the screw rod and positioned between the waterproof bearing and the groove bottom of the accommodating groove; the second sealing ring is arranged on the outer side of the bearing riveting piece and is attached to the inner wall of the inner sleeve; and the third sealing ring is arranged on the inner side of the bearing riveting piece, is positioned between the waterproof bearing and the side wall of the accommodating groove and is attached to the waterproof bearing.

Be provided with the power pencil on the motor gear box, be provided with the confession on the motor end bulb the U type groove of power pencil holding, the fourth waterproof construction includes: the damping washer is arranged at one end of the motor gear box; the sealing element is arranged between the damping washer and the motor end ball head, and when the motor end ball head is riveted to the inner sleeve, the sealing element is extruded and deformed to seal and waterproof one end of the inner sleeve; the waterproof boss is arranged on one side, close to the power wire harness, of the sealing element, is in interference fit with the power wire harness, and is used for the power wire harness to penetrate through; and the motor end decorative sleeve is sleeved on the inner sleeve pipe, is far away from one end of the outer sleeve pipe, is in interference fit with the motor end ball head and is in interference fit with the power supply wiring harness.

The riveting mechanism includes: the first riveting structure is arranged between the spring end riveting ring and the outer sleeve and used for preventing the spring end riveting ring and the outer sleeve from rotating or slipping; the second riveting structure is arranged between the spring end ball head and the screw sleeve component and is used for preventing the relative rotation or slippage phenomenon between the spring end ball head and the screw sleeve component; the third riveting structure is arranged between the screw rod and the screw sleeve assembly, is used for preventing the slippage phenomenon between the screw rod and the screw sleeve assembly and improves the tensile strength between the screw rod and the screw sleeve assembly; the fourth riveting structure is arranged between the inner sleeve and the bearing riveting piece and is used for preventing the bearing riveting piece and the inner sleeve from rotating or slipping relatively; and the fifth riveting structure is arranged between the motor end ball head and the inner sleeve and used for preventing the relative movement or slipping phenomenon between the motor end ball head and the inner sleeve.

The wire sleeve assembly comprises: the screw sleeve lengthening pipe is fixedly arranged on one side, close to the screw rod, of the screw sleeve lengthening pipe and is used for being assembled with the screw rod so as to drive the screw sleeve lengthening pipe to slide along the axial direction of the screw rod when the screw rod rotates; the first riveted structure includes: the first riveting part is arranged on the outer sleeve and is attached to the inner wall of the first riveting groove after the first riveting structure is riveted; the second riveted structure set up in the wire sleeve extension tube with between the spring end bulb, the second riveted structure includes: the spring end riveting head is arranged on one side, close to the wire sleeve lengthened pipe, of the spring end ball head and is used for riveting with the wire sleeve lengthened pipe, a second riveting groove is formed in the riveting head, and a second riveting part is arranged on the wire sleeve lengthened pipe and is attached to the inner wall of the second riveting groove after the second riveting structure is riveted; be provided with the anticreep bulge loop on the inner wall of wire sleeve extension pipe, third riveted structure includes: set up in keep away from on the lead screw the third riveting groove of motor gear box one side, and, the cover is located on the lead screw and after the riveting with lead screw riveting piece 172 of the inner wall laminating in third riveting groove, lead screw riveting piece 172 after the riveting with the cooperation of anticreep bulge loop is in order to prevent that the wire sleeve extension pipe breaks away from the lead screw.

The fourth riveted structure includes: the riveting device comprises a fourth riveting groove arranged on the bearing riveting piece, and a third riveting part arranged on the inner sleeve and attached to the inner wall of the fourth riveting groove after the inner sleeve is riveted with the bearing riveting piece; the fifth riveted structure includes: the motor end riveting head is arranged on the motor end ball head, is close to one side of the motor gear and is used for being riveted with the inner sleeve, a fifth riveting groove is formed in the motor end riveting head, and a fourth riveting portion is arranged on the inner sleeve and is attached to the inner wall of the fifth riveting groove after the inner sleeve is riveted with the motor end riveting head.

The spring assembly includes: the spring is sleeved on the wire sleeve lengthening pipe and the screw rod, one end of the spring is abutted with the bearing riveting piece, and the other end of the spring is abutted with the spring end riveting ring; the spring sleeve is sleeved on the wire sleeve lengthening pipe, assembled with the spring end riveting ring and used for dispersing the stress of the spring in use to protect the spring, and has the functions of wear resistance and self lubrication; and the spring end flat washer is arranged between the spring end riveting ring and the spring and fixedly assembles the spring sleeve and the spring end riveting ring under the elastic action of the spring.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

1. interior sleeve pipe, outer tube do not be provided with the anti-rotation groove on outer tube and interior sleeve pipe for the sleeve pipe among the prior art to can save outer tube and interior sheathed tube cost of manufacture, can promote outer tube and interior sheathed tube preparation precision simultaneously.

2. The first waterproof construction that sets up increases the waterproof performance between interior sleeve pipe and the outer tube through annular waterproof, and annular waterproof can also increase the wear resistance between outer tube and the interior sleeve pipe simultaneously, is favorable to protecting interior sleeve pipe and outer tube to promote the life of interior sleeve pipe and outer tube.

3. The second waterproof construction that sets up through the interference fit of spring end decorative cover and spring end bulb, can effectively avoid liquid to get into inside the outer tube from the outer tube near spring end bulb one end to play the guard action to inside spring unit.

4. The third waterproof structure is arranged, and firstly, the bearing riveting piece and the inner wall of the inner sleeve are assembled in a sealing manner through the second sealing ring; then, promote the waterproof performance between waterproof bearing and the lead screw through the bearing seal circle that sets up in the holding tank of bearing riveting spare, and simultaneously, through the third sealing washer that sets up, make waterproof bearing and bearing rivet the sealing assembly between the piece, further promote waterproof performance, and finally, through the first sealing washer that sets up, make the bearing rivet the sealing assembly between piece and the lead screw, make third waterproof structure play multiple waterproof effect, and then make third waterproof structure can effectively keep away liquid and rivet the piece through the bearing and enter into the motor gear box, be favorable to the normal work of motor gear box.

5. The fourth waterproof construction that sets up, through setting up the cooperation at sealing member and shock washer, extrude when motor end bulb rivets with interior sleeve pipe the sealing member for the sealing member takes place to deform, thereby the arch supports interior sheathed tube inner wall, and then reaches sealed effect, and simultaneously, the power pencil that sets up waterproof boss and motor gear box on the sealing member seals up the assembly, thereby effectively prevent that liquid from entering into the motor gear box in the power pencil holding hole, the waterproof performance of this bracing piece has effectively been guaranteed, be favorable to prolonging the life of bracing piece, promote the waterproof performance of bracing piece.

6. The phenomenon of relative rotation or slippage between the spring end riveting ring and the outer sleeve can be effectively avoided through the arranged first riveting structure; the relative rotation or slippage phenomenon between the spring end ball head and the thread sleeve assembly can be avoided through the arranged second riveting structure; the third riveting structure can effectively avoid the slippage phenomenon between the screw sleeve component and the screw rod, and can effectively improve the anti-pull-off performance and the tensile strength between the screw rod and the screw sleeve component; the relative rotation or slippage phenomenon between the bearing riveting piece and the inner sleeve can be effectively avoided through the arranged fourth riveting structure; the fifth riveting structure can effectively prevent the relative movement or slipping phenomenon between the motor end ball head and the inner sleeve; adopt above-mentioned riveted structure, five places are riveted the bracing piece from the bracing piece, not only can avoid the bracing piece to appear not hard up or the slippage phenomenon in the bracing piece inside that causes when long-time use or frequent use, can effectively promote preventing of bracing piece moreover and draw off performance and tensile strength, and then guarantee the life of bracing piece for this bracing piece has the support stable, prevents drawing off effectual, tensile strength is high, long service life's advantage.

7. Through the spring sleeve who sets up, the spring housing is established on the spring sleeve and is flexible along the spring sleeve during use, rubs with the spring, and the spring sleeve has wear-resisting and self-lubricating effect, not only can play certain supporting role, and the atress is too big and the spring that causes is too big and the condition that leads to the spring to damage when can avoiding appearing spring compression moreover protects the spring.

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 these drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of a support rod before riveting;

FIG. 2 is a cross-sectional view of the support rod with outer sleeve, inner sleeve, spring end decorative sleeve and motor end decorative sleeve cut;

FIG. 3 is an exploded view of the support pole before riveting;

FIG. 4 is a schematic structural view of the wire-sleeve lengthening tube, the screw riveting member, the wire sleeve and the screw rod before the support rod is riveted;

FIG. 5 is a schematic structural view of a dual bearing supporting a rod;

FIG. 6 is a schematic view of a first waterproof construction of the support pole;

FIG. 7 is a schematic view of a second waterproof construction of the support pole;

FIG. 8 is a schematic structural view of a third water-proofing structure of the support bar;

FIG. 9 is a schematic view of the construction of the bearing rivet for the support rod;

FIG. 10 is a schematic view of a fourth waterproof construction of the support pole;

FIG. 11 is a schematic view of the overall structure of the support rod after riveting;

FIG. 12 is a schematic view of the first riveted structure and the second riveted structure of the support rod after riveting;

FIG. 13 is a cross-sectional view of the support rod after riveting in a third riveted construction;

FIG. 14 is a schematic view of the support rod after riveting in a fourth riveted construction;

fig. 15 is a schematic view of the fifth riveted structure of the support rod after riveting.

Description of reference numerals: 1. an outer sleeve; 2. an inner sleeve; 3. a motor gear box; 31. a power supply harness; 4. A screw rod; 5. riveting and pressing a bearing; 51. a card slot; 52. accommodating grooves; 6. a motor terminal ball head; 7. a spring end ball head; 8. a wire sleeve assembly; 81. sleeving a lengthened pipe with a wire; 811. an anti-drop convex ring; 812. an annular groove; 813. an assembling portion; 82. sleeving the silk; 9. riveting a pressing ring at the spring end; 10. a spring assembly; 101. a spring; 102. a spring sleeve; 103. a spring flat washer; 11. a first waterproof structure; 111. an annular waterproof member; 112. A connecting member; 113. a limiting groove; 114. a protrusion; 115. a clamping hole; 12. a second waterproof structure; 121. A spring end decorative sleeve; 13. a third waterproof structure; 131. a first seal ring; 132. a waterproof bearing; 133. A bearing seal ring; 134. a second seal ring; 135. a third seal ring; 136. a gearbox damping pad; 137. fixing the bearing; 138. a screw rod retaining ring; 14. a fourth waterproof structure; 141. a cushion ring; 142. a seal member; 143. a waterproof boss; 144. a motor end decorative sleeve; 15. a first riveted structure; 151. a first riveting groove; 152. a first rivet joint; 16. a second riveted structure; 161. riveting the spring end; 1611. Riveting ends; 1612. a riveting part; 162. a second riveting groove; 163. a second riveted part; 17. a third riveted structure; 171. a third riveting groove; 172. a screw riveting piece; 18. a fourth riveted structure; 181. A fourth riveting groove; 182. a third riveting part; 183. a bone ring; 19. a fifth riveted joint structure; 191. riveting the end of the motor; 1911. a rivet head body; 1912. the anti-rotation wall; 1913. a bone ring plate; 192. a fourth riveted part; 193. and a fifth riveting groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.

The embodiment relates to an electric tail gate bracing piece of car, as shown in fig. 1-15, includes: the riveting device comprises an outer sleeve 1, an inner sleeve 2, a motor gear box 3, a lead screw 4, a bearing riveting piece 5, a motor end ball head 6, a spring end ball head 7, a wire sleeve component 8, a spring end riveting ring 9, a spring component 10, a waterproof structure and a riveting structure.

As shown in fig. 1 to 5, the inner sleeve 2 is sleeved in the outer sleeve 1 and can slide along the axial direction of the outer sleeve 1. The motor gear box 3 is arranged in the inner sleeve 2 and far away from one side of the outer sleeve 1. The screw rod 4 is arranged in the outer sleeve 1 and the inner sleeve 2, and the screw rod 4 is used for being assembled with the motor gear and conducting the motion of the motor gear box 3. The bearing riveting piece 5 is arranged in the outer sleeve 1 and assembled with one side, close to the outer sleeve 1, of the motor gear box 3, and the bearing riveting piece 5 is used for fixing the screw rod 4; the motor end ball head 6 is arranged on one side, far away from the outer sleeve 1, of the inner sleeve 2, and the motor end ball head 6 is detachably assembled with a corresponding position on an automobile. The spring end ball 7 is arranged on one side, far away from the inner sleeve 2, of the outer sleeve 1, and the spring end ball 7 is used for being assembled with another corresponding position on the automobile to achieve the basic function of the supporting rod. The wire sleeve assembly 8 is disposed within the outer sleeve 1. One end of the screw sleeve component 8 is assembled with the screw rod 4 and slides along the axis direction of the screw rod 4 when the screw rod 4 rotates, and the other end of the screw sleeve component 8 is assembled with the spring end ball 7. The spring assembly 10 is arranged in the outer sleeve 1 and the inner sleeve 2 and sleeved on the screw rod 4 and the screw sleeve 82 pipe group. The spring end riveting ring 9 is arranged on one side, close to the spring end ball head 7, of the outer sleeve 1.

Wherein, as shown in fig. 1-5, the waterproof mechanism is arranged in the outer sleeve 1 and the inner sleeve 2. The waterproof mechanism is used for sealing and waterproofing between the inner sleeve 2 and the outer sleeve 1, between the outer sleeve 1 and the spring end ball head 7, between the inner sleeve 2 and the motor end ball head 6 and between the bearing riveting piece 5 and the screw rod 4. The riveting mechanism is arranged on the support rod. The riveting mechanism is used for riveting and assembling between a motor end ball head 6 and an inner sleeve 2, between a bearing riveting piece 5 and the inner sleeve 2, between a screw rod 4 and a screw sleeve component 8, between a spring end riveting ring 9 and an outer sleeve 1 and between a spring end ball head 7 and the screw sleeve component 8.

Further, as shown in fig. 1-5, the wire sleeve assembly 8 includes: a wire-sheath extension tube 81 and a wire sheath 82. The screw-sheath extension pipe 81 is sleeved on the screw rod 4, and the screw-sheath extension pipe 81 is provided with an assembling portion 813 for installing the screw sheath 82. The fitting portion 813 is provided on the side of the wire-cover extension pipe 81 close to the screw 4. The screw sleeve 82 is fixedly arranged on the assembling part 813, and the screw sleeve 82 is used for being assembled with the screw rod 4 to drive the screw sleeve extension pipe 81 to slide along the axial direction of the screw rod 4 when the screw rod 4 rotates.

Preferably, a plurality of circular through holes are formed in the mounting portion 813, and the circular through holes are annularly and equally spaced on the mounting portion 813. The thread sleeve 82 is provided with a circular convex column assembled with the circular through hole. The screw sleeve 82 and the assembling portion 813 are molded by casting, the screw sleeve 82 is made of hard plastic, and the inner wall of the screw sleeve 82 is provided with screw threads assembled with the screw rod 4. The wire-sheathed tube 81 is a metal tube.

Further, as shown in fig. 1-5, the spring assembly 10 includes: a spring 101, a spring sleeve 102 and a spring flat washer 103. The spring 101 is sleeved on the wire-sleeve extension pipe 81 and the screw rod 4. One end of the spring 101 is abutted with the bearing riveting piece 5, and the other end is abutted with the spring end riveting ring 9. The setting of spring 101 not only can effectively slow down the vibrations between outer tube 1 and the interior sleeve pipe 2, can show the noise that reduces the bracing piece moreover, guarantees the life of bracing piece. The spring sleeve 102 is sleeved on the wire sleeve extension pipe 81 and assembled with the spring end riveting ring 9, and the spring sleeve 102 is used for dispersing the stress of the spring 101 in use so as to protect the spring 101. In addition, the spring sleeve 102 has wear-resistant and self-lubricating properties. The spring end flat washer is arranged between the spring end riveting ring 9 and the spring 101, and the spring end flat washer is used for fixedly assembling the spring sleeve 102 and the spring end riveting ring 9 under the elastic force action of the spring 101.

As shown in fig. 6 to 10, the waterproof mechanism includes: a first waterproof structure 11, a second waterproof structure 12, a third waterproof structure 13, and a fourth waterproof structure 14. The first waterproof structure 11 is arranged at the joint of the outer sleeve 1 and the inner sleeve 2. The second waterproof structure 12 is disposed at a joint of the spring end ball 7 and the outer sleeve 1. The third water prevention structure 13 is arranged between the motor end ball head 6 and the motor gear box 3. The fourth waterproof structure 14 is arranged between the bearing rivet 5 and the inner sleeve 2.

Specifically, as shown in fig. 6, the first waterproof structure 11 includes: annular flashing 111 and connecting member 112. The annular waterproof piece 111 is arranged on the outer sleeve 1 and close to one end of the inner sleeve 2. The connecting piece 112 is disposed on the annular waterproof piece 111, away from the outer sleeve 1, and attached to the outer sidewall of the inner sleeve 2.

Preferably, the annular waterproof member 111 is provided with a plurality of protrusions 114, and the outer sleeve 1 is provided with a clamping hole 115 for clamping the protrusions 114. The spacing groove 113 that supplies annular waterproof piece 111 holding is seted up to outer tube 1 one end, spacing groove 113 plays limiting displacement to annular waterproof piece 111, thereby prevent that annular waterproof piece 111 from moving towards outer tube 1 one side along with interior sleeve pipe 2 when the bracing piece is flexible, and because annular waterproof piece 111 holding is in spacing groove 113, when guaranteeing sealed waterproof between outer tube 1 and interior sleeve pipe 2, can also reduce the frictional force between annular waterproof piece 111 and the interior sleeve pipe 2, ensure that this bracing piece can be smooth stretch out and draw back.

In this embodiment, the annular waterproof member 111 is provided with four protrusions 114, and the outer sleeve 1 is correspondingly provided with four fastening holes 115, so that the annular waterproof member 111 can be stably and firmly installed in the limiting groove 113, thereby preventing the outer sleeve 1 from being displaced in the process of extending and retracting the support rod. Annular waterproof part 111 is made by the PUR material, and PUR material waterproof performance is good, also has good deformability, consequently not only can increase the waterproof performance between interior sleeve pipe 2 and the outer tube 1, avoids outside rainwater to get into inside the bracing piece, can also increase the wearability between interior sleeve pipe 2 and the outer tube 1, reduces wearing and tearing between the two.

Preferably, as shown in fig. 7, the second waterproof structure 12 is a spring end decorative sleeve 121 sleeved on the outer sleeve 1 and away from one side of the inner sleeve 2, and the spring end decorative sleeve 121 is in interference fit with the spring end ball 7, so as to effectively improve the waterproof performance of the spring end of the support rod.

Further, as shown in fig. 8 and 9, the bearing riveting member 5 is provided with a clamping groove 51 and a receiving groove 52, and the third waterproof structure 13 includes: a first seal 131, a waterproof bearing 132, a bearing seal 133, a second seal 134, and a third seal 135.

The locking groove 51 is used for installing the second sealing ring 134. The first sealing ring 131 is disposed on the lead screw 4 near the motor gear box 3. The waterproof bearing 132 is fitted on the first packing 131 and received in the receiving groove 52. The bearing sealing ring 133 is sleeved on the screw rod 4 and located between the waterproof bearing 132 and the groove bottom of the accommodating groove 52, and the bearing sealing ring 133 is used for improving the waterproof performance between the screw rod 4 and the bearing riveting piece 5. The second seal ring 134 is disposed outside the bearing rivet 5 and attached to the inner wall of the inner sleeve 2. The third sealing ring 135 is disposed inside the bearing rivet 5, and the third sealing ring 135 is located between the waterproof bearing 132 and the sidewall of the accommodating groove 52 and is attached to the waterproof bearing 132.

It should be noted that a gearbox damping washer 136 is provided between the bearing rivet 5 and the motor gearbox 3. And be provided with fixing bearing 137 between gear box shock pad 136 and waterproof bearing 132, this fixing bearing 137 passes through two lead screw 4 retaining rings to be fixed on lead screw 4, through the duplex bearing structure of fixing bearing 137 and waterproof bearing 132 combination, not only can effectively promote the axiality between lead screw 4, bearing riveting piece 5 and the motor gear box 3 to guarantee the smooth and easy nature of lead screw 4 operation, can promote the pull-off resistance performance of bracing piece moreover, promote the life of bracing piece.

Further, as shown in fig. 10, a power supply harness 31 is provided on the motor gear box 3, and a U-shaped groove for accommodating the power supply harness 31 is provided on the motor end ball head 6. The fourth waterproof structure 14 includes: a shock-absorbing washer 141, a sealing member 142, a waterproof boss 143, and a motor-end decorative cover 144.

The damping washer 141 is disposed on the motor gear box 3 near one end of the motor end ball 6. The sealing member 142 is provided between the cushion washer 141 and the motor end ball 6. When the motor end ball head 6 is riveted on the inner sleeve 2, the sealing element 142 tightly abuts against the inner wall of the inner sleeve 2 due to extrusion deformation, so that one end of the inner sleeve 2 is sealed and waterproof. The waterproof boss 143 is disposed on the sealing member 142 near the power harness 31, and the waterproof boss 143 is in interference fit with the power harness 31 and is used for the power harness 31 to penetrate through. The motor end decorative sleeve 144 is sleeved on one end of the inner sleeve 2 far away from the outer sleeve 1, and the motor end decorative sleeve 144 is in interference fit with the motor end ball head 6 and is in interference fit with the power wire harness 31.

As shown in fig. 10, it should be noted that, the fourth waterproof structure 14 is disposed on the sealing element 142 and the damping washer 141, and the sealing element 142 is pressed when the ball head 6 of the motor end is riveted with the inner sleeve 2, so that the sealing element 142 deforms, and the protrusion 114 abuts against the inner wall of the inner sleeve 2, thereby achieving the sealing effect, and meanwhile, the waterproof boss 143 is disposed on the sealing element 142 to be hermetically assembled with the power harness 31 of the motor gear box 3, thereby effectively preventing liquid from entering the motor gear box 3 from the accommodating hole of the power harness 31, effectively ensuring the waterproof performance of the supporting rod, being beneficial to prolonging the service life of the supporting rod, and improving the waterproof performance of the supporting rod.

As shown in fig. 11-15, the riveting mechanism includes: a first rivet structure 15, a second rivet structure 16, a third rivet structure 17, a fourth rivet structure 18, and a fifth rivet structure 19.

The first riveting structure 15 is arranged between the spring end riveting ring 9 and the outer sleeve 1, and the first riveting structure 15 is used for preventing the spring end riveting ring 9 and the outer sleeve 1 from rotating or slipping. The second riveting structure 16 is arranged between the spring end ball 7 and the screw sleeve component 8, and the second riveting structure 16 is used for preventing relative rotation or slippage between the spring end ball 7 and the screw sleeve component 8. The third riveting structure 17 is arranged between the screw rod 4 and the screw sleeve component 8, and the third riveting structure 17 is used for preventing the screw rod 4 and the screw sleeve component 8 from slipping and improving the tensile strength between the screw rod 4 and the screw sleeve component 8. The fourth riveting structure 18 is arranged between the inner sleeve 2 and the bearing riveting piece 5, and the fourth riveting structure 18 is used for preventing the relative rotation or slippage phenomenon between the bearing riveting piece 5 and the inner sleeve 2. The fifth riveting structure 19 is arranged between the motor end ball head 6 and the inner sleeve 2, and the fifth riveting structure 19 is used for preventing the relative movement or slipping phenomenon between the motor end ball head 6 and the inner sleeve 2.

As shown in fig. 12, the first caulking structure 15 includes: a first riveting groove 151 and a first riveting portion 152. The first riveting groove 151 is provided on the spring end riveting ring 9. The first riveting portion 152 is disposed on the outer sleeve 1, and after the first riveting structure 15 is riveted, the first riveting portion 152 is attached to the inner wall of the first riveting groove 151.

The second riveting structure 16 is arranged between the wire-sleeve lengthened pipe 81 and the spring end ball head 7, and the second riveting structure 16 comprises: a spring end rivet 161 and a second rivet 163.

As shown in fig. 10, the spring end rivet 161 is disposed on the spring end ball 7 near the nipple extension pipe 81, the spring end rivet 161 is used for riveting with the nipple extension pipe 81, and the spring end rivet 161 is provided with a second riveting groove 162. The second caulking portion 163 is provided on the pipe mantle 81, and after the second caulking structure 16 is caulked, the second caulking portion 163 is attached to the inner wall of the second caulking groove 162.

Specifically, as shown in fig. 12, the spring end rivet head 161 includes: a caulking head 1611 and a caulking portion 1612. When the rivet head is assembled with the wire-grommet extension pipe 81, the rivet head 1611 is inserted into the wire-grommet extension pipe 81. The riveting portion 1612 is used for connecting the riveting end 1611 and the ball end, and in order to effectively ensure the rotation-proof effect of the riveting portion 1612, the cross section of the riveting portion 1612 is designed to be a polygon.

After the elongated tube 81 is riveted to the spring end rivet 161, the riveted portion 1612 is attached to the inner wall of the elongated tube 81, and the elongated tube 81 is prevented from rotating relative to the riveted portion 1612. Meanwhile, the riveting tip 1611 is used to prevent the riveted pipe 81 from coming off the riveted portion.

Preferably, the cross section of the riveting portion 1612 is a rectangle with four corners provided with round corners. The caulking head 1611 has a disk-like structure, and the caulking portion 1612 is integrally formed with the caulking head 1611. In other embodiments, the cross-section of the rivet 1612 may also be triangular, pentagonal, etc.

As shown in fig. 13, an anti-slip convex ring 811 is provided on the inner wall of the wire-cover extension pipe 81, and an annular groove 812 is provided on the outer wall of the wire-cover extension pipe 81 at a position corresponding to the anti-slip convex ring 811. The third rivet structure 17 includes: a third riveting groove 171, and a screw riveting member 172.

The third riveting groove 171 is disposed on the screw rod 4 on a side away from the motor gear box 3. The screw rod 4 is sleeved with the riveting piece, and after the screw rod 4 is riveted with the screw rod 4, the inner side of the screw rod 4 is attached to the inner wall of the third riveting groove 171. Specifically, after the screw rod 4 is riveted, the outside of the screw rod riveting member 172 is matched with the anti-falling convex ring 811, so that the wire sleeve lengthening pipe 81 is prevented from being separated from the screw rod 4.

As shown in fig. 14, the fourth rivet structure 18 includes: a fourth caulking groove 181 and a third caulking portion 182. The fourth riveting groove 181 is provided on the bearing riveting member 5. The third riveting portion 182 is disposed on the inner sleeve 2, and after the inner sleeve 2 is riveted to the bearing riveting member 5, the third riveting portion 182 is attached to the inner wall of the fourth riveting groove 181.

Specifically, a bone ring 183 is disposed on the bearing rivet member 5, and the bone ring 183 is disposed in the fourth rivet groove 181. The bone ring 183 is provided with a gap with the inner wall of the riveting groove, so that the bone ring 183 can be conveniently accommodated in the riveting groove when being sunken. The bone ring 183 is integrally formed with the bearing rivet 5. The two side walls of the riveting groove are obliquely arranged, and the size of the notch of the riveting groove is larger than that of the bottom of the groove, so that the riveting is convenient.

When the inner sleeve 2 is riveted to the bearing riveting member 5, the outer wall of the inner sleeve 2 has a plurality of first recesses which are circumferentially and uniformly spaced. While the first recess is recessed, a second recess is recessed at a position on the bone ring 183 corresponding to the first recess. Thereby mutually support through first depressed part and second depressed part, prevent that bearing riveting spare 5 and interior sleeve pipe 2 from taking place relative rotation to through the cooperation of first depressed part with riveting inslot wall, prevent that bearing riveting spare 5 and interior sleeve pipe 2 from taking place the slippage phenomenon.

As shown in fig. 10 and 15, the fifth caulking structure 19 includes: a motor end rivet 191 and a fourth rivet 192. The motor end riveting head 191 is arranged on one side, close to the motor gear, of the motor end ball head 6, the motor end riveting head 191 is used for riveting with the inner sleeve 2, and a fifth riveting groove 193 is formed in the motor end riveting head 191. The fourth rivet 192 is provided on the inner tube 2, and after the inner tube 2 is riveted to the motor end rivet 191, the fourth rivet 192 is attached to the inner wall of the fifth rivet groove 193.

Motor end rivet 191 includes: rivet head body 1911, anti-rotation wall 1912 and bone ring plate 1913. The rivet head body 1911 is clearance-fitted to the inner sleeve 2, and the fifth rivet groove 193 is provided on the rivet head body 1911. The rotation preventing wall 1912 is disposed in the fifth rivet groove 193. After the inner sleeve 2 is riveted with the rivet head body 1911, the rotation preventing wall 1912 is used to prevent the relative rotation of the inner sleeve 2 riveted with the rivet head body 1911. The bone ring plate 1913 is disposed in the fifth rivet groove 193, and the bone ring plate 1913 is located between the adjacent anti-rotation walls 1912.

Preferably, the rotation-preventing walls 1912 are provided in plurality, and the fifth riveting grooves 193 are equally spaced from the plurality of rotation-preventing walls 1912.

When the inner sleeve 2 is swaged to the swage head body 1911, the bone ring plate 1913 is recessed toward the bottom side of the fifth swaging groove 193, thereby preventing the fifth swaging groove 193 from being damaged during swaging. The bone ring plate 1913 serves to prevent large particle objects from falling into the fifth rivet groove 193 to facilitate use of the rivet body 1911 when the rivet body 1911 is stored.

Specifically, a gap is provided between the bone ring plate 1913 and the inner wall of the fifth riveting groove 193, and when the bone ring plate 1913 is recessed, the gap is used for accommodating recessed materials of the bone ring plate 1913. Three anti-rotation walls 1912 are provided, and four bone ring pieces 1913 are provided. The rivet head body 1911 is integrally formed with the ball end.

The design principle of the present embodiment is roughly as follows: through the arrangement of the first waterproof structure 11, the second waterproof structure 12 and the fourth waterproof structure 14, the end part of the outer sleeve 1, the end part of the inner sleeve 2 and the joint of the outer sleeve 1 and the inner sleeve 2 are hermetically assembled, so that the external waterproof effect of the supporting rod is improved, and meanwhile, through the arrangement of the third waterproof structure 13, liquid is effectively prevented from entering the motor gear box 3 in the supporting rod, so that the normal operation of the supporting rod is ensured; in addition, the phenomenon of relative rotation or slippage between the spring end riveting ring 9 and the outer sleeve 1 can be effectively avoided through the arranged first riveting structure 15; the relative rotation or slippage between the spring end ball 7 and the thread sleeve component 8 can be avoided through the arranged second riveting structure 16; the third riveting structure 17 can not only effectively avoid the slippage phenomenon between the screw sleeve component 8 and the screw rod 4, but also effectively improve the anti-pull-off performance and the tensile strength between the screw rod 4 and the screw sleeve component 8; the relative rotation or slippage phenomenon between the bearing riveting piece 5 and the inner sleeve 2 can be effectively avoided through the arranged fourth riveting structure 18; the fifth riveting structure 19 can effectively prevent the relative movement or slipping between the motor end ball 6 and the inner sleeve 2.

Adopt above-mentioned riveted structure, five places are riveted the bracing piece from the bracing piece, it is waterproof from four places simultaneously, not only can avoid the bracing piece to appear not hard up or the slippage phenomenon in the bracing piece inside that causes when long-time use or frequent use, and can effectively promote the bracing piece prevent drawing off performance and tensile strength, and then guarantee the life of bracing piece, can promote the waterproof performance of bracing piece simultaneously by a wide margin, make this bracing piece have support stable, prevent drawing off effectually, tensile strength is high, long service life, water-proof effects is good, the advantage that waterproof performance is stable.

The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention should be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims (10)

1. An automotive power tailgate support bar comprising: outer tube (1), interior sleeve pipe (2), motor gear box (3), lead screw (4), bearing riveting piece (5), motor end bulb (6), spring end bulb (7), silk sleeve subassembly (8), spring end riveting clamping ring (9) and spring unit (10), its characterized in that still includes:

the waterproof mechanisms are arranged in the outer sleeve (1) and the inner sleeve (2) and are used for sealing and waterproofing between the inner sleeve (2) and the outer sleeve (1), between the outer sleeve (1) and the spring end ball head (7), between the inner sleeve (2) and the motor end ball head (6) and between the bearing riveting piece (5) and the screw rod (4); and the number of the first and second groups,

the riveting mechanism is arranged on the supporting rod and used for riveting and assembling the motor end ball head (6) and the inner sleeve (2), the bearing riveting piece (5) and the inner sleeve (2), the screw rod (4) and the screw sleeve component (8), the spring end riveting pressing ring (9) and the outer sleeve (1) and the spring end ball head (7) and the screw sleeve component (8).

2. The automotive power tailgate support bar according to claim 1, wherein the waterproofing mechanism comprises: the first waterproof structure (11) is arranged at the joint of the outer sleeve (1) and the inner sleeve (2); the second waterproof structure (12) is arranged at the joint of the spring end ball head (7) and the outer sleeve (1);

a third water-proofing structure (13) arranged between the bearing riveting piece (5) and the inner sleeve (2); and a fourth waterproof structure (14) arranged between the motor end ball head (6) and the motor gear box (3).

3. The automotive electric tailgate support bar according to claim 2, characterized in that the first waterproof structure (11) comprises: an annular waterproof piece (111) arranged on the outer sleeve (1) and close to one end of the inner sleeve (2),

the connecting piece (112) is arranged on one side, far away from the outer sleeve (1), of the annular waterproof piece (111) and is attached to the outer side wall of the inner sleeve (2);

a plurality of protrusions (114) are arranged on the annular waterproof piece (111), and clamping holes (115) for clamping the protrusions (114) are formed in the outer sleeve (1).

4. The automotive electric tailgate support rod according to claim 3, wherein the second waterproof structure (12) is a spring end decorative sleeve (121) which is sleeved on one side of the outer sleeve (1) far away from the inner sleeve (2) and is in interference fit with the spring end ball head (7).

5. The automotive electric tailgate support rod according to claim 4, wherein the bearing riveting piece (5) is provided with a clamping groove (51) and a receiving groove (52), and the third water-proofing structure (13) comprises:

the first sealing ring (131) is arranged on one side, close to the motor gear box (3), of the screw rod (4);

a waterproof bearing (132) assembled on the first sealing ring (131) and accommodated in the accommodating groove (52);

the bearing sealing ring (133) is sleeved on the screw rod (4) and is positioned between the waterproof bearing (132) and the groove bottom of the accommodating groove (52);

the second sealing ring (134) is arranged on the outer side of the bearing riveting piece (5) and is attached to the inner wall of the inner sleeve (2);

and the third sealing ring (135) is arranged on the inner side of the bearing riveting piece (5), is positioned between the waterproof bearing (132) and the side wall of the accommodating groove (52), and is attached to the waterproof bearing (132).

6. The automotive electric tailgate support bar according to claim 5, wherein a power supply harness (31) is arranged on the motor gear box (3), a U-shaped groove for accommodating the power supply harness (31) is arranged on the motor end ball head (6), and the fourth waterproof structure (14) comprises:

a damping washer (141) arranged at one end of the motor gear box (3);

the sealing element (142) is arranged between the shock absorption gasket (141) and the motor end ball head (6), and is extruded and deformed when the motor end ball head (6) is riveted on the inner sleeve (2) to play a role in sealing and waterproofing one end of the inner sleeve (2);

the waterproof boss (143) is arranged on one side, close to the power wiring harness (31), of the sealing piece (142), is in interference fit with the power wiring harness (31), and is used for the power wiring harness (31) to penetrate through; and the motor end decorative sleeve (144) is sleeved on one end of the inner sleeve (2) far away from the outer sleeve (1), is in interference fit with the motor end ball head (6) and is in interference fit with the power wire harness (31).

7. The automotive power tailgate support bar according to claim 6, wherein the riveting mechanism comprises: the first riveting structure (15) is arranged between the spring end riveting ring (9) and the outer sleeve (1) and is used for preventing the spring end riveting ring (9) and the outer sleeve (1) from rotating or slipping;

the second riveting structure (16) is arranged between the spring end ball head (7) and the thread sleeve component (8) and is used for preventing the relative rotation or slippage phenomenon between the spring end ball head (7) and the thread sleeve component (8);

the third riveting structure (17) is arranged between the screw rod (4) and the screw sleeve component (8) and is used for preventing the slippage phenomenon between the screw rod (4) and the screw sleeve component (8) and improving the tensile strength between the screw rod (4) and the screw sleeve component (8);

the fourth riveting structure (18) is arranged between the inner sleeve (2) and the bearing riveting piece (5) and is used for preventing the bearing riveting piece (5) and the inner sleeve (2) from rotating relatively or slipping; and the number of the first and second groups,

and the fifth riveting structure (19) is arranged between the motor end ball head (6) and the inner sleeve (2) and is used for preventing the relative movement or slipping phenomenon between the motor end ball head (6) and the inner sleeve (2).

8. The automotive power tailgate support bar according to claim 7, characterized in that the wire sleeve assembly (8) comprises: the screw sleeve lengthening pipe (81) and a screw sleeve (82) are fixedly arranged on one side, close to the screw rod (4), of the screw sleeve lengthening pipe (81), and are used for being assembled with the screw rod (4) to drive the screw sleeve lengthening pipe (81) to slide along the axial direction of the screw rod (4) when the screw rod (4) rotates;

the first riveted structure (15) includes:

a first riveting groove (151) provided on the spring end riveting ring (9), and,

a first riveting portion (152) which is provided on the outer sleeve (1) and is attached to the inner wall of the first riveting groove (151) after the first riveting structure (15) is riveted;

the second riveting structure (16) is arranged between the wire sleeve lengthening pipe (81) and the spring end ball head (7), and the second riveting structure (16) comprises:

a spring end riveting head (161) which is arranged on one side of the spring end ball head (7) close to the wire sleeve extension pipe (81) and is used for riveting with the wire sleeve extension pipe (81), a second riveting groove (162) is arranged on the riveting head,

a second riveting portion (163) which is provided on the wire-covering elongated tube (81) and is attached to the inner wall of the second riveting groove (162) after the second riveting structure (16) is riveted;

be provided with anticreep bulge loop (811) on the inner wall of silk cover extension tube (81), third riveted structure (17) include:

a third riveting groove (171) arranged on one side of the screw rod (4) far away from the motor gear box (3),

and the screw rod (4) riveting piece is sleeved on the screw rod (4) and is attached to the inner wall of the third riveting groove (171) after riveting, and the screw rod (4) riveting piece is matched with the anti-falling convex ring (811) after riveting to prevent the screw sleeve lengthening pipe (81) from being separated from the screw rod (4).

9. The automotive power tailgate support bar according to claim 8, characterized in that the fourth riveted structure (18) comprises:

a fourth riveting groove (181) provided on the bearing riveting member (5), and,

a third riveting part (182) which is arranged on the inner sleeve (2) and is attached to the inner wall of the fourth riveting groove (181) after the inner sleeve (2) is riveted with the bearing riveting part (5);

the fifth rivet structure (19) includes:

a motor end riveting head (191) which is arranged on the motor end ball head (6) and is close to one side of the motor gear and is used for riveting with the inner sleeve (2), a fifth riveting groove (193) is arranged on the motor end riveting head (191), and,

and a fourth riveting part (192) which is arranged on the inner sleeve (2) and is jointed with the inner wall of the fifth riveting groove (193) after the inner sleeve (2) is riveted with the motor end riveting head (191).

10. The automotive power tailgate support bar, according to claim 9, characterized in that the spring assembly (10) comprises: the spring (101) is sleeved on the wire sleeve lengthening pipe (81) and the screw rod (4), one end of the spring is abutted with the bearing riveting piece (5), and the other end of the spring is abutted with the spring end riveting ring (9);

the spring sleeve (102) is sleeved on the wire sleeve lengthening pipe (81), assembled with the spring end riveting ring (9) and used for dispersing the stress of the spring (101) in use to protect the spring, and the spring sleeve (102) has the functions of wear resistance and self lubrication; and the number of the first and second groups,

the spring end flat washer is arranged between the spring end riveting ring (9) and the spring (101) and is used for fixedly assembling the spring sleeve (102) and the spring end riveting ring (9) under the action of the elastic force of the spring (101).

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