阅读说明：本技术 一种高强度低重量汽车用拖车钩 (High-strength low-weight trailer hook for automobile ) 是由 董智勇 洪超 方青春 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种高强度低重量汽车用拖车钩,包括第一钩组、与第一钩组转动连接且对称设置的第二钩组、用于第一钩组和第二钩组减震的连接装置；所述第一钩组上设有左右转动的转盘,用于拖钩整体前后减震的减震组件,用于转盘和减震装置上下转动的转动组件。本发明为一种强度及刚度较大的拖车钩,提高拖车钩的使用寿命。(The invention discloses a high-strength low-weight automobile trailer hook, which comprises a first hook group, a second hook group and a connecting device, wherein the second hook group is rotationally connected with the first hook group and symmetrically arranged, and the connecting device is used for damping the first hook group and the second hook group; the first hook group is provided with a rotary disc which rotates left and right, a shock absorption assembly for damping the front and the back of the whole towing hook, and a rotating assembly for rotating the rotary disc and the shock absorption device up and down. The trailer hook has higher strength and rigidity, and the service life of the trailer hook is prolonged.)

1. The utility model provides a high strength low weight is car with towing hook which characterized in that: including first hook group (1), with first hook group rotate be connected and the second hook group (2) that the symmetry set up, be used for first hook group and second hook group absorbing connecting device (3), first hook group (1) including control pivoted carousel (11), be used for the holistic front and back absorbing damping component (12) of towing pintle, be used for carousel and damping device tilting's runner assembly (13).

2. The tow hook for the high-strength low-weight automobile according to claim 1, characterized in that: the shock absorption component (12) comprises a hook body (121), a first rotating rod (122) rotatably arranged on the hook body, a second rotating rod (123) symmetrically arranged with the first rotating rod and rotatably arranged on the hook body, a sliding rail (124) fixedly arranged on the hook body between the first rotating rod and the second rotating rod, a first elastic rod (125) with one end rotatably arranged on the first rotating rod and the other end rotatably arranged on the second rotating rod, and a guide rod (126) arranged in the sliding rail, the sliding seat (127) sleeved on the guide rod and arranged on the sliding rail, the screw (128) arranged on the sliding seat in a penetrating manner and rotating manner by half of the positive thread and half of the negative thread, the first lantern ring (129) sleeved on the positive thread of the screw and arranged on the first rotating rod in a rotating manner, the second lantern ring (1210) sleeved on the negative thread of the screw and arranged on the second rotating rod in a rotating manner, and the spring (1220) sleeved on the outer side of the guide rod, wherein one end of the spring is fixedly arranged on the sliding seat, and the other end of the spring.

3. The tow hook for the high-strength low-weight automobile according to claim 2, characterized in that: the slide rail (124) is provided with two first inclined slide grooves (1241) which are symmetrically arranged and two second inclined slide grooves (1242) which are symmetrically arranged and have opposite inclination with the first inclined slide grooves; two first convex blocks (1271) and two second convex blocks (1272) matched with the first inclined sliding grooves and the second inclined sliding grooves are arranged on the sliding seat (127).

4. The tow hook for the high-strength low-weight automobile according to claim 1, characterized in that: the rotary table (11) comprises a table body (111), arc-shaped grooves (112) which are symmetrically arranged on the table body, two first arc-shaped sliding blocks (113) which are positioned in the two arc-shaped grooves, second elastic rods (114) which are positioned at two ends of the first arc-shaped sliding blocks and are arranged on the rotary table, a rotary shaft (115) which is arranged in the middle of the rotary table in a rotating mode, arc-shaped sliding rails (116) which are arranged on the side wall of the rotary table, second arc-shaped sliding blocks (117) which are arranged on the arc-shaped sliding rails, and connecting rods (118) which penetrate through the second arc-shaped.

5. The tow hook for the high-strength low-weight automobile according to claim 1, characterized in that: the rotating assembly (13) comprises a third rotating rod (131) and a fourth rotating rod (132), wherein one end of the third rotating rod (133) is rotatably arranged on the rotating disc, the other end of the third rotating rod (131) and the fourth rotating rod (132) are rotatably arranged on the hook body, the third elastic rod (133) is arranged on the third rotating rod, the fourth elastic rod (134) is arranged on the fourth rotating rod, a first sliding block (135) for fixing one end of the third elastic rod, a second sliding block (136) for fixing one end of the fourth elastic rod, one end of the fifth rotating rod (137) is rotatably arranged on the first sliding block, the other end of the fifth rotating rod is rotatably arranged on the second sliding block, and the third sliding block (138) is.

6. The tow hook for the high-strength low-weight automobile according to claim 1, characterized in that: the first hook group is identical to the second hook group in structure, the connecting device (3) comprises a first shaft (31) which is used for a first rotating rod on the first hook group to be rotationally connected with a first rotating rod on the second hook group, a second shaft (32) which is used for a second rotating rod on the first hook group to be rotationally connected with a second rotating rod on the second hook group, a first large gear (33) which is fixedly arranged at one end of the first shaft, a second large gear (34) which is fixedly arranged at one end of the second shaft, a first small gear (35) which is rotatably arranged on the first rotating rod on the first hook group and is meshed with the first large gear, a second small gear (36) which is rotatably arranged on the first rotating rod on the second hook group and is meshed with the first large gear, a fifth elastic rod (37) which is fixedly arranged at one end of the first small gear and is fixedly arranged at the other end of the second small gear, a third rotating rod (38) which is rotatably arranged on the second rotating rod on the first hook group and is meshed with the second small, A fourth pinion (39) which is rotatably arranged on the second rotating rod of the second hook group and is engaged with the second gearwheel, and a sixth elastic rod (310) of which one end is fixed on the third pinion and the other end is fixed on the fourth pinion.

Technical Field

The invention relates to the field of automobiles, in particular to a high-strength low-weight automobile trailer hook.

Background

With the rapid development of the automobile industry, the automobile manufacturing and research and development capabilities of the whole automobile manufacturers in China are greatly improved. However, in the case where the vehicle fails and the vehicle cannot normally run, the vehicle is frequently towed from the failed ground to a safe place only by using another vehicle as a towing function, and the towing vehicle and the failed vehicle are connected to each other mainly by a towing hook. In the running process of the traction fault vehicle, the front vehicle can turn left and right, start, stop and bumpy road surface, the trailer structure generally has the problem of small strength and rigidity, and the trailer hook is easy to break, so that the service life of the trailer hook can be limited.

Disclosure of Invention

The invention provides a high-strength low-weight trailer hook for an automobile, aiming at overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a high strength low weight is car with towing hook, includes first hook group, rotates the second hook group that is connected and the symmetry sets up with first hook group, is used for first hook group and the absorbing connecting device of second hook group, first hook group including control pivoted carousel, be used for the holistic front and back absorbing damper of towing hook, be used for carousel and damping device tilting's runner assembly.

Damping component includes the coupler body, rotate and locate the first bull stick on the coupler body, set up and rotate the second bull stick of locating on the coupler body with first bull stick symmetry, be located between first bull stick and the second bull stick and fix the slide rail of locating on the coupler body, one end is rotated and is located on the first bull stick other end and rotate the first elastic force pole of locating on the second bull stick, be located the guide bar of slide rail, overlap on the guide bar and locate the slide on the slide rail, half positive thread half reverse thread runs through and rotates the screw rod of locating on the slide, overlap on screw rod positive thread and rotate the first lantern ring of locating on the first bull stick, overlap on screw rod reverse thread and rotate the second lantern ring of locating on the second bull stick, overlap on the fixed spring of locating on the coupler body of the other end of locating on the slide of guide bar outside one end.

The sliding rail is provided with two first inclined sliding chutes which are symmetrically arranged and two second inclined sliding chutes which are symmetrically arranged and have opposite inclination with the first inclined sliding chutes; and the sliding seat is provided with two first convex blocks and two second convex blocks which are matched with the first inclined sliding groove and the second inclined sliding groove.

The carousel includes the disk body, locate the arc wall that two symmetries set up on the disk body, be located two first arc sliders of two arc walls, be located second elastic rod on first arc slider both ends locate the carousel, rotate the pivot of locating in the middle of the carousel, locate the arc slide rail on the carousel lateral wall, locate the second arc slider on the arc slide rail, run through second arc slider and fix the connecting rod on pivot and second arc slider simultaneously.

The rotating assembly comprises a third rotating rod and a fourth rotating rod, wherein one end of the third rotating rod and the fourth rotating rod are rotatably arranged on the turntable, the other end of the third rotating rod and the fourth rotating rod are rotatably arranged on the hook body, a third elastic rod is arranged on the third rotating rod, a fourth elastic rod is arranged on the fourth rotating rod, a first sliding block is used for fixing one end of the third elastic rod, a second sliding block is used for fixing one end of the fourth elastic rod, one end of the fifth rotating rod is rotatably arranged on the first sliding block, the other end of the fifth rotating rod is rotatably arranged on the second sliding block, and a third sliding block is slidably arranged on the hook body and.

The first hook group and the second hook group have the same structure, the connecting device comprises a first shaft, a second shaft, a first big gear, a second big gear, a first small gear, a second small gear, a third small gear, a fourth small gear, a first rotating rod, a second big gear, a second small gear, a first big gear, a second elastic rod, a third small gear, a fourth small gear, a third small gear, a connecting device and a connecting device, wherein the first rotating rod is arranged on the first hook group, the first rotating rod is rotatably connected with the first rotating rod on the second hook group, the second rotating rod is rotatably connected with the second rotating rod on the second hook group, the second rotating rod on the second hook group is rotatably connected with the first rotating rod on the second hook group, the second rotating rod on the second hook group is rotatably connected with the second rotating rod on the second hook group, the second rotating rod on the second hook group, And a sixth elastic rod with one end fixed to the third pinion and the other end fixed to the fourth pinion.

The invention has the following advantages: in the process of towing, the towing hook can integrally rotate left and right through the arrangement of the rotary disc in the turning process of the towing vehicle, so that the towing hook can be prevented from being broken; the shock absorption assembly is arranged to buffer the tractor and the fault car in the process of starting or stopping the car, namely in the process of mutually approaching or separating the tractor and the fault car, so that the service life reduction caused by hard-pulling or hard-squeezing of the tractor hook is avoided; when encountering bumpy road surface in the trailer process, the tractor and the fault car move up and down, and the whole trailer hook can rotate up and down through the rotating assembly, so that the trailer hook can be prevented from being broken; the strength of the trailer hook is greatly enhanced through the integral design, and the service life of the trailer hook is prolonged.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a first structural diagram of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of fig. 2 at B.

Fig. 5 is a second structural schematic diagram of the present invention.

Fig. 6 is an enlarged view of fig. 5 at C.

Fig. 7 is a schematic cross-sectional view of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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.

As shown in fig. 1-7, a high-strength low-weight automobile tow hook comprises a first hook group 1, a second hook group 2 which is rotationally connected with the first hook group and symmetrically arranged, and a connecting device 3 for damping the first hook group and the second hook group, wherein the first hook group 1 comprises a rotating disc 11 which rotates left and right, a damping component 12 for damping the front and back of the whole tow hook, and a rotating component 13 for rotating the rotating disc and the damping device up and down; the first hook group and the second hook group have the same structure; in the process of towing, the towing hook can integrally rotate left and right through the arrangement of the rotary disc in the turning process of the towing vehicle, so that the towing hook can be prevented from being broken; the shock absorption assembly is arranged to buffer the tractor and the fault car in the process of starting or stopping the car, namely in the process of mutually approaching or separating the tractor and the fault car, so that the service life reduction caused by hard-pulling or hard-squeezing of the tractor hook is avoided; when encountering bumpy road surface in the trailer process, the tractor and the fault car move up and down, and the whole trailer hook can rotate up and down through the rotating assembly, so that the trailer hook can be prevented from being broken; the strength of the trailer hook is greatly enhanced through the integral design, and the service life of the trailer hook is prolonged.

The damping component 12 comprises a hook body 121, a first rotating rod 122 rotatably arranged on the hook body, a second rotating rod 123 symmetrically arranged with the first rotating rod and rotatably arranged on the hook body, a slide rail 124 positioned between the first rotating rod and the second rotating rod and fixedly arranged on the hook body, a first elastic rod 125 with one end rotatably arranged on the first rotating rod and the other end rotatably arranged on the second rotating rod, a guide rod 126 positioned in the slide rail, a slide carriage 127 sleeved on the guide rod and arranged on the slide rail, a screw 128 with a half of positive threads and a half of reverse threads penetrating and rotatably arranged on the slide carriage, a first collar 129 sleeved on the positive threads of the screw and rotatably arranged on the first rotating rod, a second collar 1210 sleeved on the reverse threads of the screw and rotatably arranged on the second rotating rod, and a spring 1220 sleeved on the outer side of the guide rod and fixedly arranged on the hook body at one end and fixedly arranged on the hook body at the other end; the tractor and the fault car are close to or far away from each other, so that the first rotating rod and the second rotating rod rotate relatively at the same time, and the first elastic rods which are respectively arranged on the first rotating rod and the second rotating rod in a rotating mode reversely push or pull the first rotating rod and the second rotating rod which rotate relatively, so that the mutual close or far away of the tractor and the fault car is relieved; first bull stick of relative pivoted and second bull stick make first lantern ring and second lantern ring be close to each other or keep away from, half the reverse thread of half positive screw thread of screw rod, first lantern ring cover just rotates on the positive screw thread of screw rod and locates first bull stick, the second lantern ring cover just rotates on the reverse thread of screw rod and locates on the second bull stick to make the screw rod rotate, convert power into torsion, thereby play better buffering, make the slide carry out reciprocating motion along the guide bar direction simultaneously, rethread spring makes the slide buffering that removes, slows down the front impact force and the pulling force that drag the coupling and receive promptly.

Two first inclined chutes 1241 which are symmetrically arranged and two second inclined chutes 1242 which are symmetrically arranged and have opposite inclination with the first inclined chutes are arranged on the slide rail 124; two first bumps 1271 and two second bumps 1272 matched with the first inclined sliding grooves and the second inclined sliding grooves are arranged on the sliding seat 127; through the first oblique spout and the oblique spout setting of second on the slide rail, can avoid the slide to rock, make the cooperation between slide and the slide rail more inseparable simultaneously, reduce the wearing and tearing that the slide removed the in-process and lead to on the slide rail.

The rotary table 11 comprises a table body 111, two arc-shaped grooves 112 symmetrically arranged on the table body, two first arc-shaped sliders 113 positioned in the two arc-shaped grooves, second elastic rods 114 positioned at two ends of the first arc-shaped sliders and arranged on the rotary table, a rotary shaft 115 rotatably arranged in the middle of the rotary table, arc-shaped slide rails 116 arranged on the side walls of the rotary table, second arc-shaped sliders 117 arranged on the arc-shaped slide rails, and connecting rods 118 penetrating through the second arc-shaped sliders and fixed on the rotary shaft and the second arc-shaped sliders; the connecting rod is fixed on tractor or trouble car, the vehicle turn in-process, the connecting rod then rotates, make second arc slider remove on the arc slide rail, can reduce pivot wearing and tearing through the aforesaid setting, it is more steady to make the connecting rod rotate on the disk body simultaneously, the pivoted connecting rod drives two first arc sliders and removes, the second elastic rod that makes and locate two first arc slider both ends is elongated or is compressed, slow down the power that the connecting rod rotation received, two first arc sliders and second elastic rod that set up through the symmetry, make the connecting rod rotate the reaction force that receives many places in-process, and the reaction force atress is even, thereby play better buffering effect that turns to.

The rotating assembly 13 comprises a third rotating rod 131 and a fourth rotating rod 132, one end of the third rotating rod is rotatably arranged on the rotating disc, the other end of the third rotating rod is rotatably arranged on the hook body, a third elastic rod 133 is arranged on the third rotating rod, a fourth elastic rod 134 is arranged on the fourth rotating rod, a first sliding block 135 for fixing one end of the third elastic rod, a second sliding block 136 for fixing one end of the fourth elastic rod, a fifth rotating rod 137, one end of the fifth rotating rod is rotatably arranged on the first sliding block, the other end of the fifth rotating rod is rotatably arranged on the second sliding block, and a third sliding block 138 which is slidably arranged on the hook body and is fixed on the fifth rotating rod; the tractor reciprocates with the trouble car, makes third bull stick and fourth bull stick tilting, makes first slider and second slider remove, and rethread third elastic rod and fourth elastic rod produce the cushion force to the first slider and the second slider that move to slow down third bull stick and fourth bull stick steering force, fifth bull stick one end is rotated and is located on the first slider other end and rotate and locate on the second slider and the third slider slides and locate on the coupler body and fix on the fifth bull stick, thereby makes the third slider reciprocate on the coupler body, makes pivoted power conversion for upper and lower power, thereby improves the rotation effect and reduces the wearing and tearing problem in the rotation process, improves the holistic life of trailer hook.

The first hook group and the second hook group have the same structure, the connecting device 3 comprises a first shaft 31 for rotatably connecting a first rotating rod on the first hook group with a first rotating rod on the second hook group, a second shaft 32 for rotatably connecting a second rotating rod on the first hook group with a second rotating rod on the second hook group, a first gearwheel 33 fixedly arranged at one end of the first shaft, a second gearwheel 34 fixedly arranged at one end of the second shaft, a first pinion 35 rotatably arranged on the first rotating rod on the first hook group and meshed with the first gearwheel, a second pinion 36 rotatably arranged on the first rotating rod on the second hook group and meshed with the first gearwheel, a fifth elastic rod 37 with one end fixed on the first pinion and the other end fixed on the second pinion, a third pinion 38 rotatably arranged on the second rotating rod on the first hook group and meshed with the second gearwheel, a fourth pinion 39 rotatably arranged on the second rotating rod on the second hook group and meshed with the second gearwheel, And a sixth elastic rod 310 having one end fixed to the third pinion gear and the other end fixed to the fourth pinion gear. Through first gear wheel and second gear wheel and first pinion, second pinion, third pinion, fourth pinion and meshing rotation, reduce the wearing and tearing that first axle and second axle received, rethread fifth elastic rod is to first pinion and second pinion thrust or pulling force, and sixth elastic rod is to third pinion and fourth pinion thrust or pulling force, slows down the power that the rotation junction received to improve the holistic life of trailer hook greatly.