阅读说明：本技术 一种汽车牵引用拖车机构 (Trailer mechanism for automobile traction ) 是由 吴丰平 于 2019-10-14 设计创作，主要内容包括：本发明涉及汽车零件技术领域,且公开了一种汽车牵引用拖车机构,包括固定筒,固定筒内腔的中部固定安装有限位塞,固定筒的内部活动套接有柱杆,柱杆与限位塞活动套接,柱杆位于限位塞的一侧的端部固定连接有缓冲活塞,柱杆位于限位塞的另一侧的外部固定套接有密封活塞,缓冲活塞和密封活塞均与固定筒滑动连接。本发明通过将柱杆与套接于固定筒内且可带动缓冲活塞一起滑动,缓冲活塞的左右侧均设置液压油,通过阻尼孔,可实现汽车牵引过程中追尾时的缓冲性能,且可伸缩移动的柱杆,不仅具备较长的缓冲行程,还可在其端部设触头,并在实施牵引时将触头拉出车辆保险杠内,以便于两个车牵引时由触头保障追尾造成的车漆安全问题。(The invention relates to the technical field of automobile parts and discloses a trailer mechanism for automobile traction, which comprises a fixed cylinder, wherein a limiting plug is fixedly arranged in the middle of an inner cavity of the fixed cylinder, a post rod is movably sleeved in the fixed cylinder and movably sleeved with the limiting plug, a buffer piston is fixedly connected to the end part of the post rod, which is positioned on one side of the limiting plug, a sealing piston is fixedly sleeved outside the post rod, which is positioned on the other side of the limiting plug, and the buffer piston and the sealing piston are both in sliding connection with the fixed cylinder. According to the telescopic movable post rod, the post rod and the buffer piston are sleeved in the fixed cylinder and can be driven to slide together, hydraulic oil is arranged on the left side and the right side of the buffer piston, the buffer performance during rear-end collision in the automobile traction process can be realized through the damping holes, the telescopic movable post rod not only has a long buffer stroke, but also can be provided with the contact at the end part, and the contact is pulled out of the automobile bumper when traction is implemented, so that the problem of automobile paint safety caused by rear-end collision can be conveniently guaranteed by the contact when two automobiles are pulled.)

1. The utility model provides a trailer mechanism for car is pull, includes a fixed section of thick bamboo (1), its characterized in that: the middle part of the inner cavity of the fixed cylinder (1) is fixedly provided with a limiting plug (2), the inner part of the fixed cylinder (1) is movably sleeved with a post rod (3), the post rod (3) is movably sleeved with the limiting plug (2), the end part of the post rod (3) positioned at one side of the limiting plug (2) is fixedly connected with a buffer piston (4), the outer part of the post rod (3) positioned at the other side of the limiting plug (2) is fixedly sleeved with a sealing piston (5), the buffer piston (4) and the sealing piston (5) are both in sliding connection with the fixed cylinder (1), the inner part of the buffer piston (4) is provided with a damping hole (6), the damping hole (6) is used for communicating chambers at the left side and the right side of the buffer piston (4), the inner cavity of the fixed cylinder (1) and one side positioned at the limiting plug (2) are filled with hydraulic oil, the buffer piston (4) is positioned in, one end of the pole (3) extending out of the fixed cylinder (1) is fixedly connected with a contact (7), one side of the contact (7) is provided with a towing hook (8), and the towing hook (8) penetrates through the contact (7) and is connected with the internal thread of the pole (3).

2. The trailer mechanism for automobile towing according to claim 1, wherein: one side of contact (7) is equipped with draw-in groove (71) and card strip (72), and draw-in groove (71) and card strip (72) interval arrangement, draw-in groove (71) and the width of card strip (72) can the looks adaptation joint.

3. The trailer mechanism for automobile towing according to claim 2, wherein: the clamping grooves (71) and the clamping strips (72) are vertically arranged.

4. The trailer mechanism for automobile towing according to claim 3, wherein: the side surface of the clamping strip (72) is provided with an arc surface.

Technical Field

The invention relates to the technical field of automobile parts, in particular to a trailer mechanism for automobile traction.

Background

The front and the back of the car of the common car are provided with trailer hooks for fixing a trailer rope during the emergency rescue of the car. At present, the trailer hook of an automobile is screwed at a corresponding position in front of or behind the automobile body by threads, and only a circular ring of the trailer hook is exposed after being screwed.

Disclosure of Invention

Aiming at the defects of the existing automobile traction installation mechanism in the background technology in the using process, the invention provides the trailer mechanism for automobile traction, which has the advantages of high safety protection and good buffering performance, and solves the problems in the background technology.

The invention provides the following technical scheme: a trailer mechanism for automobile traction comprises a fixed cylinder, a limit plug is fixedly arranged in the middle of the inner cavity of the fixed cylinder, a post rod is movably sleeved in the fixed cylinder, the post rod is movably sleeved with the limit plug, the end part of the post rod, which is positioned at one side of the limit plug, is fixedly connected with a buffer piston, the outside of the pole at the other side of the limit plug is fixedly sleeved with a sealing piston, the buffer piston and the sealing piston are both connected with the fixed cylinder in a sliding way, the interior of the buffer piston is provided with a damping hole which is used for communicating the left and right side chambers of the buffer piston, the inner cavity of the fixed cylinder and one side of the limiting plug are filled with hydraulic oil, the buffer piston is positioned in the hydraulic oil, one end of the pole, which extends out of the fixed cylinder, is fixedly connected with a contact, one side of the contact is provided with a towing hook, and the towing hook penetrates through the contact and is connected with the internal thread of the pole.

Preferably, one side of the contact is provided with a clamping groove and a clamping strip which are arranged at intervals, and the clamping groove and the clamping strip can be clamped in a matched manner.

Preferably, the clamping grooves and the clamping strips are vertically arranged

Preferably, the side surface of the clamping strip is provided with an arc surface.

The invention has the following beneficial effects:

1. according to the telescopic movable post rod, the post rod and the buffer piston are sleeved in the fixed cylinder and can be driven to slide together, hydraulic oil is arranged on the left side and the right side of the buffer piston, the buffer performance during rear-end collision in the automobile traction process can be realized through the damping holes, the telescopic movable post rod not only has a long buffer stroke, but also can be provided with the contact at the end part, and the contact is pulled out of the automobile bumper when traction is implemented, so that the problem of automobile paint safety caused by rear-end collision can be conveniently guaranteed by the contact when two automobiles are pulled.

2. According to the invention, the clamping grooves and the clamping strips are arranged on the side surfaces of the contact, and the widths of the clamping grooves and the clamping strips can realize adaptive clamping, when two vehicles are about to collide with the rear in traction, the clamping grooves and the clamping strips of the front and rear vehicles are clamped, so that the vehicle head can be prevented from yawing, larger-area vehicle paint damage can be prevented, and meanwhile, the clamping grooves can facilitate the installation of the towing hook, so that the performance of the contact is not influenced after the towing hook is installed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the clamping state of the contact of the invention.

In the figure: 1. a fixed cylinder; 2. a limiting plug; 3. a post rod; 4. a cushion piston; 5. a sealing piston; 6. a damping hole; 7. a contact; 71. a card slot; 72. clamping the strip; 8. and (6) towing a hook.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a trailer mechanism for automobile traction comprises a fixed cylinder 1, a limit plug 2 is fixedly installed in the middle of an inner cavity of the fixed cylinder 1, a post 3 is movably sleeved inside the fixed cylinder 1, the post 3 is movably sleeved and sealed with the limit plug 2, a buffer piston 4 is fixedly connected to an end portion of the post 3 located on one side of the limit plug 2, a seal piston 5 is fixedly sleeved outside the post 3 located on the other side of the limit plug 2, the buffer piston 4 and the seal piston 5 are both slidably connected with the fixed cylinder 1, a damping hole 6 is formed inside the buffer piston 4, the damping hole 6 is used for communicating chambers on the left side and the right side of the buffer piston 4, hydraulic oil is filled in the inner cavity of the fixed cylinder 1 and located on one side of the limit plug 2, the buffer piston 4 is located in the hydraulic oil, the diameter of the damping hole 6 is millimeter-sized, the seal piston 5 is used for performing secondary sealing on the inner cavity of, and the sealing piston 5 provides the axial positioning of the pole 3 and bears, because, the car is in the course of drawing, may produce great moment of flexure to the pole 3, therefore, the setting of sealing piston 5, can improve the bending resistance bearing capacity of pole 3, the one end fixedly connected with contact 7 that the pole 3 stretches out the fixed cylinder 1, contact 7 is used for accepting the direct contact component under the tractor condition of knocking into the back, is equipped with towing pintle 8 in one side of contact 7, towing pintle 8 runs through contact 7 and with the internal thread connection of pole 3.

Utilize the damping effect of orifice 6, when the car traction rear-end collision appears, the hydraulic oil of buffer piston 4 one side gets into buffer piston 4's opposite side through orifice 6 because of the damping action is slow to prevent buffer piston 4's quick slip, be about to turn into the hydraulic oil internal energy with kinetic energy, provide the shock-absorbing capacity, simultaneously, the contact 7 that stretches out can be prior to the automobile body contact, under the cooperation buffering effect, protection vehicle paint safety that can be fine.

Wherein, one side of contact 7 is equipped with draw-in groove 71 and card strip 72, and draw-in groove 71 and card strip 72 interval and vertical arrangement, draw-in groove 71 can the looks adaptation joint with the width of card strip 72, tow hook 8 is located the card strip 72 at middle part, because of the flexible characteristics of car haulage rope, the car is at the traction in-process, the contact 7 of front and back car always can be near a straight line, when appearing pulling when knocking into the back, the draw-in groove 71 and the card strip 72 of front and back car can the joint, can effectively prevent that the locomotive from driftage, cause the damage to the car lacquer in non-protection zone.

The side surfaces of the clamping strips 72 are provided with arc surfaces, so that the clamping strips 72 of the front and rear vehicles can be timely dislocated under impact pressure when being butted, and a clamping state of the clamping groove 71 and the clamping strips 72 is formed, as shown in fig. 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.