CN210178851U - Anti-disengagement structure for tail gate push rod and lead screw nut - Google Patents
Anti-disengagement structure for tail gate push rod and lead screw nut Download PDFInfo
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- CN210178851U CN210178851U CN201920620173.1U CN201920620173U CN210178851U CN 210178851 U CN210178851 U CN 210178851U CN 201920620173 U CN201920620173 U CN 201920620173U CN 210178851 U CN210178851 U CN 210178851U
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Abstract
The utility model aims at providing a can avoid screw-nut to break away from tail-gate push rod screw-nut anti-disengaging structure of lead screw. In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a tail-gate push rod screw-nut anti-disengaging structure, includes lead screw and screw-nut, the screw-nut cooperation is on the lead screw, the lead screw includes external screw thread section and restriction section at least along the axial, the restriction section is located the lead screw tip, form and have the annular groove on the restriction section, it is fixed with two plain washer and a damping piece to compress tightly to rivet soon in the annular groove, the damping piece is located between two plain washers, and the axial plane of a plain washer contacts with the axial plane of external screw thread section, and the axial plane of another plain washer contacts with the bulge loop axial plane on the external screw thread section is kept away from to the restriction section.
Description
Technical Field
The utility model relates to a tail-gate push rod, concretely relates to tail-gate push rod screw-nut anti-disengagement structure.
Background
The screw rod nut is matched on the screw rod, the screw rod rotates to enable the screw rod nut to move axially along the screw rod, under the condition that parts such as a position sensor of the tail gate push rod and the like fail, the situation that the screw rod nut is separated from the screw rod can occur, and the situation that the screw rod nut is pushed against the top also occurs when the tail gate push rod is normally used.
Disclosure of Invention
The utility model aims at providing a can avoid screw-nut to break away from tail-gate push rod screw-nut anti-disengaging structure of lead screw.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a tail-gate push rod screw-nut anti-disengaging structure, includes lead screw and screw-nut, the screw-nut cooperation is on the lead screw, the lead screw includes external screw thread section and restriction section at least along the axial, the restriction section is located the lead screw tip, form and have the annular groove on the restriction section, it is fixed with two plain washer and a damping piece to compress tightly to rivet soon in the annular groove, the damping piece is located between two plain washers, and the axial plane of a plain washer contacts with the axial plane of external screw thread section, and the axial plane of another plain washer contacts with the bulge loop axial plane on the external screw thread section is kept away from to the restriction section.
The utility model discloses a rivet fixed plain washer and damping piece soon at the lead screw tip, rivet soon and pull off the power and can reach 4500N to make screw-nut be difficult to break away from the bulge loop on the lead screw. The screw rod can be processed and cut off a part to form the annular groove and the convex ring, the end part of the screw rod can be welded with an annular piece to enable the end part of the screw rod to be provided with the convex ring, and the axial surface of the end part of the screw rod can be provided with a threaded hole and matched with a bolt with the outer diameter of the bolt head being larger than that of the end part of the screw rod, so that the convex ring is formed by the bolt head.
Preferably, a top pipe is fixed on the feed screw nut, the damping block is of a structure that the outer diameter of the circumferential outer edge is gradually increased from the middle to two axial sides, the circumferential outer edge of the damping block is in contact with the inner wall of the top pipe, and the outer diameter of the damping block is larger than that of the flat washer. The top pipe is supported by the damping block at the end part of the screw rod, so that the top pipe is prevented from shaking relative to the screw rod.
Preferably, the circumferential sides of the damping blocks are recessed to form a plurality of air discharge grooves. The exhaust groove is used for enabling air in the jacking pipe to be communicated relative to spaces on two sides of the damping block in the axial direction so as to reduce resistance when the jacking pipe moves in the axial direction.
Preferably, the feed screw nut comprises a first section and a second section, the first section of the circumferential outer edge is located on the outer side of the second section of the circumferential outer edge, the inner wall of the jacking pipe and the second section of the circumferential outer wall form a thread structure which is matched with each other, a plurality of riveting grooves are formed in the second section of the circumferential outer wall in an inward concave mode, the riveting grooves are arranged along the second section of the circumferential outer wall, the jacking pipe is in thread fit with the feed screw nut, and after the axial surface of the jacking pipe is contacted with the first section of the axial surface, the jacking pipe is riveted relative to the part of the riveting grooves, so that the part structure of the. The arrangement prevents the lead screw nut from being separated from the top pipe due to the relative rotation of the top pipe and the lead screw nut.
The utility model has the advantages of can avoid screw-nut and lead screw and push pipe to break away from mutually.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a schematic structural diagram of the damping block of the present invention;
fig. 3 is a schematic structural diagram of the screw nut of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
By figure 1, figure 2 shows, the utility model discloses a tail-gate push rod screw-nut anti-disengagement structure, including lead screw 1 and screw-nut 2, the cooperation of screw-nut 2 is on lead screw 1, lead screw 1 includes external screw thread section 11 and restriction section 12 along the axial at least, restriction section 12 is located the lead screw 1 tip, form and have the annular groove on the restriction section 12, it is fixed with two plain washer 3 and a damping piece 4 to compress tightly the spin riveting in the annular groove, damping piece 4 is located between two plain washer 3, the axial plane of a plain washer 3 contacts with the axial plane of external screw thread section 11, the axial plane of another plain washer 3 contacts with restriction section 12 keeps away from the 13 axial planes of bulge loop on the external screw thread section 11.
The feed screw nut 2 is fixed with a top pipe 5, the damping block 4 is of a structure that the outer diameter of the circumferential outer edge is gradually increased from the middle to two axial sides, the circumferential outer edge of the damping block 4 is in contact with the inner wall of the top pipe 5, and the outer diameter of the damping block 4 is larger than that of the flat washer 3. Wherein, the circumferential side of the damping block 4 is concaved inward to form a plurality of air discharge grooves 41.
As shown in fig. 1 and 3, the feed screw nut 2 includes a first section 21 and a second section 22, the first section 21 is located outside the second section 22, the inner wall of the jacking pipe 5 and the outer wall of the second section 22 are formed with screw structures which are matched with each other, the outer wall of the second section 22 is concave inwards to form a plurality of riveting grooves 23, the riveting grooves 23 are axially arranged along the second section 22, the jacking pipe 5 is in screw fit with the feed screw nut 2, and after the axial surface of the jacking pipe 5 is contacted with the first section 21, the jacking pipe 5 is riveted relative to the part of the riveting groove 23, so that the part structure of the jacking pipe extends into the riveting grooves 23.
The utility model has the advantages of can avoid screw-nut and lead screw and push pipe to break away from mutually.
Claims (4)
1. The utility model provides a tail-gate push rod screw-nut anti-disengaging structure, its characterized in that includes lead screw and screw-nut, the screw-nut cooperation is on the lead screw, the lead screw includes external screw thread section and restriction section at least along the axial, the restriction section is located the lead screw tip, be formed with the annular groove on the restriction section, it is fixed with two plain washers and a damping piece to compress tightly to rivet soon in the annular groove, the damping piece is located between two plain washers, and the axial plane of a plain washer contacts with the axial plane of external screw thread section, and the axial plane of another plain washer contacts with the protruding ring axial plane on the external screw thread section is kept away from to the restriction section.
2. The anti-disengagement structure of the tail gate push rod and the screw nut of claim 1 is characterized in that a top pipe is fixed on the screw nut, the damping block is of a structure in which the outer diameter of the circumferential outer edge is gradually increased from the middle to two axial sides, the circumferential outer edge of the damping block is in contact with the inner wall of the top pipe, and the outer diameter of the damping block is larger than that of the flat washer.
3. The tailgate push-rod feed screw nut anti-disengagement structure according to claim 2, wherein circumferential sides of the damping block are recessed to form a plurality of air-vent grooves.
4. The tail gate push rod screw nut anti-disengagement structure according to claim 2, wherein the screw nut comprises a first section and a second section, a circumferential outer edge of the first section is located outside a circumferential outer edge of the second section, a thread structure matched with each other is formed on an inner wall of the top pipe and a circumferential outer wall of the second section, a plurality of riveting grooves are formed in the circumferential outer wall of the second section, the riveting grooves are axially arranged along the second section, the top pipe is in thread fit with the screw nut and enables an axial surface of the top pipe to be in contact with the axial surface of the first section, and then the top pipe is riveted relative to a part of the riveting grooves so that a part structure of the top pipe extends into the riveting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920620173.1U CN210178851U (en) | 2019-05-01 | 2019-05-01 | Anti-disengagement structure for tail gate push rod and lead screw nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920620173.1U CN210178851U (en) | 2019-05-01 | 2019-05-01 | Anti-disengagement structure for tail gate push rod and lead screw nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210178851U true CN210178851U (en) | 2020-03-24 |
Family
ID=69832820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920620173.1U Active CN210178851U (en) | 2019-05-01 | 2019-05-01 | Anti-disengagement structure for tail gate push rod and lead screw nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210178851U (en) |
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2019
- 2019-05-01 CN CN201920620173.1U patent/CN210178851U/en active Active
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