CN210734119U

CN210734119U - Lightweight thrust push rod assembly convenient to installation

Info

Publication number: CN210734119U
Application number: CN201920908421.2U
Authority: CN
Inventors: 徐彬
Original assignee: Glvck Machinery Manufacture Co ltd
Current assignee: Glvck Machinery Manufacture Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-06-12
Anticipated expiration: 2029-06-17

Abstract

The utility model relates to an automobile manufacturing technical field especially relates to a thrust push rod assembly. The light thrust push rod assembly convenient to install comprises a push rod, an elastic mechanism and a movable key, wherein the middle part of the movable key is provided with a connecting hole penetrating through the upper end and the lower end, and the lower end of the push rod penetrates through the connecting hole of the movable key and is movably riveted with the movable key, so that the movable key is sleeved outside the push rod and reciprocates up and down along the push rod; the upper end of push rod is L type structure, and the department of just buckling is the fillet, is equipped with two at least connection archs around the push rod circumference on the horizontal segment of L type structure, is equipped with two at least spacing archs around the push rod circumference on the vertical segment of L type structure, and elastic mechanism is located the feather key and between the spacing arch. Due to the adoption of the technical scheme, the utility model discloses a push rod tip L type structure for among the car P shelves locking mechanism, with other device installation simple and convenient and reliable.

Description

Lightweight thrust push rod assembly convenient to installation

Technical Field

The utility model relates to an automobile parts technical field especially relates to a thrust push rod assembly.

Background

The parking control is required for both the traditional fuel oil automobile and the pure electric automobile. When going up and down a slope, the p gear is the guarantee that the vehicle stops, and the p gear of the electric automobile and the p gear of the traditional automobile guarantee the reliability of the vehicle stopping through mechanical locking.

In order to reduce the damage of the gearbox, prevent accidents and influence the safety of a new automobile, a locking mechanism is arranged on the automobile to realize parking control. The locking mechanism working principle is as follows: the control rod is in a relaxed state, and the thrust push rod assembly is in a bounce state, so that the rotation of the gear shaft cannot be influenced. The control rod exerts force on the thrust push rod assembly, the thrust push rod assembly is in a pressing state, the associated elements act towards the gear shaft direction under the action of force to clamp the gear shaft, the gearbox is locked, and the automobile cannot run.

However, when the existing thrust push rod assembly is rotatably connected with the locking plate, the existing thrust push rod assembly is usually connected through a connecting piece, so that the machining cost is increased, and the installation is also complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lightweight thrust push rod assembly convenient to installation to solve above-mentioned technical problem.

The utility model provides a technical problem can adopt following technical scheme to realize:

the light thrust push rod assembly convenient to install comprises a push rod, an elastic mechanism sleeved outside the push rod and a movable key, wherein the middle part of the movable key is provided with a connecting hole penetrating through the upper end and the lower end, and the lower end of the push rod penetrates through the connecting hole of the movable key and is movably riveted with the movable key, so that the movable key is sleeved outside the push rod and reciprocates up and down along the push rod;

the upper end of the push rod is of an L-shaped structure, the bending part is a round angle, the transverse section of the L-shaped structure is provided with at least two connecting bulges around the circumference of the push rod, the vertical section of the L-shaped structure is provided with at least two limiting bulges around the circumference of the push rod, and the elastic mechanism is positioned between the movable key and the limiting bulges.

The utility model discloses a push rod needs to be fixed with the connecting hole of lock plate, and the push rod needs to rotate at certain angle on the lock plate. The utility model discloses a tip is the push rod of L type structure when fixed with the lock plate, only needs to go into the lock plate connecting hole with the push rod card, and the connection arch of push rod withstands the lock plate and realizes fixing. Because the push rod is the L type structure, therefore the horizontal segment of push rod and lock plate are rotatable, and the vertical section of push rod restricts the push rod again and falls out the lock plate, has realized that push rod and lock plate installation are extremely convenient, need not connecting piece and other cold processing.

The push rod adopts the round bar, connecting protrusion and spacing arch on the push rod are the follow the arch of extruding on the push rod, and preferred along the push rod circumference be equipped with four extrude connecting protrusion and four extrude spacing arch. The round rod is extruded to be convex, other devices do not need to be added through processes such as welding or riveting, and the like, and the light weight of the push rod is achieved.

The push rod is also sleeved with a gasket, and the gasket is arranged between the elastic mechanism and the limiting bulge;

the inner diameter of the gasket is larger than the outer diameter of the push rod and smaller than the maximum outer diameter of the limiting protrusion, and the outer diameter of the gasket is larger than the outer diameter of the elastic mechanism. The gasket ensures that the elastic mechanism cannot fall out of the limiting bulge.

The movable key comprises a lower hollow cylindrical structure and an upper hollow cylindrical structure, the outer diameter of the lower hollow cylindrical structure is smaller than that of the upper hollow cylindrical structure, and the lower hollow cylindrical structure and the upper hollow cylindrical structure are in transition through a hollow circular truncated cone;

the inner wall of the hollow cylinder structure on the upper portion is dug to form a circle of containing cavity for containing the elastic mechanism, and the lower portion of the elastic mechanism is arranged in the containing cavity. Above-mentioned structure the utility model discloses the up-and-down motion that the activity key can be fine can be under elastic mechanism's restriction again to inject the distance motion, and realize resetting under elastic mechanism's effect.

The hollow cylindrical structure and the hollow round table on the upper part of the movable key and the hollow cylindrical structure on the lower part of the movable key are integrally manufactured. The movable key is preferably made of 20CR alloy steel.

The outer surfaces of the push rod and the movable key are both provided with carburization layers, and the thickness of each carburization layer is 0.25mm-0.35 mm.

The distance between the movable riveting end of the push rod and the central line of the transverse section of the push rod is 64.5mm +/-0.5 mm.

Has the advantages that: due to the adoption of the technical scheme, the utility model discloses a following advantage:

1. the L-shaped structure at the end part of the push rod is used in the P gear locking mechanism of the automobile, and is simple, convenient and reliable to install with other devices;

2. the connecting bulge and the limiting bulge are integrally manufactured with the push rod, and other external devices are not needed, so that the light weight is realized;

3. the push rod made integrally has longer service life.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is an internal cross-sectional view of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings.

Referring to fig. 1, 2 and 3, the light thrust push rod assembly convenient to mount comprises a push rod 1, an elastic mechanism 2 sleeved outside the push rod 1, and a movable key 3, wherein a connecting hole penetrating through the upper end and the lower end is formed in the middle of the movable key 3, and the lower end of the push rod 1 is movably riveted with the movable key 3 after penetrating through the connecting hole of the movable key 3, so that the movable key 3 is sleeved outside the push rod 1 and reciprocates up and down along the push rod 1.

The upper end of the push rod 1 is of an L-shaped structure, the bending part is a round angle, and the distance from the movable riveting end part of the push rod 1 to the central line of the transverse section of the push rod 1 is 64.5mm +/-0.5 mm. At least two connecting bulges 11 are arranged on the horizontal section of the L-shaped structure around the circumference of the push rod 1, at least two limiting bulges 12 are arranged on the vertical section of the L-shaped structure around the circumference of the push rod 1, and the elastic mechanism 2 is positioned between the movable key 3 and the limiting bulges 12. The elastic mechanism 2 preferably adopts a return spring, one end of the return spring is spirally arranged around the push rod 1, is screwed into the connecting hole of the movable key 3 and is limited on the inner wall of the movable key 3. Form a kink 5 around behind spacing arch 12 below at reset spring's the other end, this kink 5 is used for the card on the lock board, makes the utility model discloses a rotation angle is restricted in certain extent.

The push rod 1 is a round rod, the connecting protrusions 11 and the limiting protrusions 12 on the push rod 1 are protrusions extruded from the push rod 1, and preferably, four extruded connecting protrusions 11 and four extruded limiting protrusions 12 are uniformly arranged along the circumference of the push rod 1. The round rod is extruded out of the bulge through the feeding and stamping device, other devices do not need to be added through processes such as welding or riveting, and the light weight of the push rod 1 is achieved.

The push rod 1 is further sleeved with a gasket 4, and the gasket 4 is arranged between the elastic mechanism 2 and the limiting protrusion 12. The inner diameter of the gasket 4 is larger than the outer diameter of the push rod 1 and smaller than the maximum outer diameter of the limiting protrusion 12, and the outer diameter of the gasket 4 is larger than the outer diameter of the elastic mechanism. The spacer 4 ensures that the resilient means does not fall out of the stop lug 12.

The movable key 3 comprises a hollow cylindrical structure of a lower part 31 and a hollow cylindrical structure of an upper part 32, the outer diameter of the hollow cylindrical structure of the lower part 31 is smaller than that of the hollow cylindrical structure of the upper part 32, and the hollow cylindrical structure of the lower part 31 and the hollow cylindrical structure of the upper part 32 are transited through a hollow circular truncated cone 33. The inner wall of the hollow cylinder structure of the upper part 32 is dug with a circle of accommodating cavity for accommodating the elastic mechanism 2, and the lower part of the elastic mechanism 2 is arranged in the accommodating cavity. Above-mentioned structure the utility model discloses the up-and-down motion that the activity key 3 can be fine can be under elastic mechanism's restriction again to inject the distance motion, and realize resetting under elastic mechanism's effect. The hollow cylindrical structure of the upper part 32, the hollow circular truncated cone 33 and the hollow cylindrical structure of the lower part 31 of the movable key 3 adopt the movable key 3 which is integrally manufactured. During manufacturing, the material with the cylindrical structure is punched into the connecting hole through machining, the hollow cylindrical structure of the lower portion 31, the hollow circular truncated cone 33 and the hollow cylindrical structure of the upper portion 32 are punched out, and a circle of accommodating cavity is punched out from the inner wall of the upper end face of the hollow cylindrical structure of the upper portion 32 downwards along the circumference of the inner wall. The push rod 1 and the movable key 3 are both preferably made of 20CR alloy steel. The outer surfaces of the push rod 1 and the movable key 3 are respectively provided with a carburization layer, and the thickness of the carburization layer is 0.25mm-0.35 mm. In order to increase the service life.

The utility model discloses a push rod 1 needs to be fixed with the connecting hole of lock plate, and push rod 1 needs to rotate at certain angle on the lock plate. The utility model discloses a tip is push rod 1 of L type structure when fixed with the lock plate, only needs to go into lock plate connecting hole with 1 card of push rod, and the lock plate is buckled to the protruding 11 of connection of push rod 1 and is realized fixing. Because the push rod 1 is the L type structure, therefore the horizontal segment of push rod 1 and lock plate are rotatable, and the vertical segment of push rod 1 restricts push rod 1 again and falls out the lock plate, has realized that push rod 1 and lock plate installation are extremely convenient, need not connecting piece and other cold processes.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The light thrust push rod assembly convenient to install comprises a push rod, an elastic mechanism sleeved outside the push rod and a movable key, and is characterized in that a connecting hole penetrating through the upper end and the lower end is formed in the middle of the movable key, and the lower end of the push rod penetrates through the connecting hole of the movable key and is movably riveted with the movable key, so that the movable key is sleeved outside the push rod and reciprocates up and down along the push rod;

2. The easy-to-install lightweight thrust pushrod assembly of claim 1 wherein the pushrod comprises a round bar, and the connecting protrusion and the limiting protrusion are protrusions extruded from the pushrod.

3. The easy-to-install, lightweight thrust tappet assembly of claim 2, wherein four extruded connecting protrusions and four extruded limiting protrusions are provided along the tappet circumference.

4. The easy-to-install lightweight thrust pushrod assembly of claim 1 wherein a gasket is further sleeved on the pushrod, the gasket being disposed between the resilient mechanism and the limiting protrusion;

the inner diameter of the gasket is larger than the outer diameter of the push rod and smaller than the maximum outer diameter of the limiting protrusion, and the outer diameter of the gasket is larger than the outer diameter of the elastic mechanism.

5. The easy-to-install, lightweight thrust tappet assembly of claim 1, wherein said feather key comprises a lower hollow cylindrical structure and an upper hollow cylindrical structure, said lower hollow cylindrical structure having an outer diameter smaller than said upper hollow cylindrical structure, said lower hollow cylindrical structure and said upper hollow cylindrical structure being in transition by a hollow frustum.

6. The easy-to-install lightweight thrust pushrod assembly according to claim 5 wherein the hollow cylindrical structure of the upper portion of the active key is hollowed with a circle of receiving cavity for receiving the elastic mechanism, and the lower portion of the elastic mechanism is disposed in the receiving cavity.

7. The easy-to-install, lightweight thrust pushrod assembly of claim 5 wherein the hollow cylindrical structure of the upper portion, the hollow truncated cone, and the hollow cylindrical structure of the lower portion of the active key are integrally formed with the active key.

8. The easy-to-install lightweight thrust tappet assembly of claim 1, 5 or 6, wherein the movable key is made of 20CR alloy steel.

9. The easy-to-install lightweight thrust pushrod assembly of claim 1 wherein the pushrod and the outside surface of the active key are each provided with a carburized layer, the carburized layer having a thickness of 0.25mm to 0.35 mm.

10. The easy-to-install, lightweight thrust pushrod assembly of claim 1 wherein the distance between the riveted end of the pushrod to the centerline of the transverse section of the pushrod is 64.5mm ± 0.5 mm.