CN109080389B - Transportation machinery traction equipment with adjusting function - Google Patents
Transportation machinery traction equipment with adjusting function Download PDFInfo
- Publication number
- CN109080389B CN109080389B CN201810998819.XA CN201810998819A CN109080389B CN 109080389 B CN109080389 B CN 109080389B CN 201810998819 A CN201810998819 A CN 201810998819A CN 109080389 B CN109080389 B CN 109080389B
- Authority
- CN
- China
- Prior art keywords
- shell
- sliding
- fixedly connected
- spring
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/07—Multi-hitch devices, i.e. comprising several hitches of the same or of a different type; Hitch-adaptors, i.e. for converting hitches from one type to another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/243—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for protection in case of crash, collision, impact, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/249—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for damping in the pulling direction and being integrated with the hitch, e.g. resilient dampers integrated with the hitch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/34—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
- B60D1/46—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable vertically
Abstract
The invention discloses a transportation machinery traction device with an adjusting function, which relates to the technical field of transportation machinery and comprises a first shell, wherein the upper surface and the lower surface of the inner wall of the first shell are respectively provided with a first sliding chute, first sliding blocks are respectively connected in the two first sliding chutes in a sliding manner, opposite surfaces of the two first sliding blocks are fixedly connected through a first connecting plate, and two first sliding sleeves are clamped on the side surface of the first connecting plate. The traction device with the automatic adjusting function for the transportation machinery can prevent a fault vehicle from rear-end collision with a delivery vehicle due to reasons such as inertia and the like through the matching of the first rotating shaft, the first spring, the steering mechanism, the third rotating shaft, the second spring and the second rotating shaft, and can also enable a certain buffer force to exist between the delivery vehicle and the fault vehicle, so that the impact force generated by the fault vehicle to the delivery vehicle due to inertia or untimely braking can be reduced, and the delivery vehicle and the fault vehicle can be well protected.
Description
Technical Field
The invention relates to the technical field of transportation machinery, in particular to transportation machinery traction equipment with an adjusting function.
Background
The automobile towing hook traction is one of automobile auxiliary driving tools and is used for connecting a front automobile with a rear automobile so that the front automobile can tow the rear automobile away through traction under the condition that the rear automobile is in a fault.
The automobile sometimes breaks down in the running process, the broken vehicle needs to be pulled away through the traction device at the moment, however, the existing traction device for the automobile is usually a steel wire rope with two traction hooks, and due to the fact that the steel wire rope is soft, the broken vehicle is prone to rear-end collision with a consignment vehicle due to inertia in the consignment process, and therefore a traffic machinery traction device with an adjusting function is urgently needed to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a traffic machinery traction device with an adjusting function, which solves the problem that the conventional traction device for an automobile is a steel wire rope with two traction hooks, and the problem that a fault car is easy to have rear-end collision with a consignment car due to inertia in the consignment process because the steel wire rope is softer.
(II) technical scheme
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a traffic machinery traction device with an adjusting function comprises a first shell, wherein the upper surface and the lower surface of the inner wall of the first shell are respectively provided with a first sliding chute, a first sliding block is connected in each first sliding chute in a sliding manner, opposite surfaces of the two first sliding blocks are fixedly connected through a first connecting plate, the side surface of the first connecting plate is clamped with two first sliding sleeves, the first sliding sleeves are sleeved in the two first sliding sleeves, two ends of each first sliding sleeve are respectively and fixedly connected to two side surfaces of the inner wall of the first shell, a first spring is sleeved outside each first sliding sleeve, two ends of each first spring are respectively and fixedly connected with the left side of each first sliding sleeve and the left side surface of the inner wall of the first shell, the left side surface of the first connecting plate is clamped with a first bearing, the first bearing is positioned between the two first sliding sleeves, a first rotating shaft is sleeved in the first bearing, the left end of the first rotating shaft penetrates through a first limiting hole formed in the left side face of the first shell and is fixedly connected to the right side face of the first connecting piece, and the left side face of the first connecting piece is fixedly connected with a first connecting device.
A steering mechanism is clamped on the right side of the upper surface of the first shell, a third rotating shaft is sleeved in the steering mechanism, two steel rings are sleeved on the outer surface of the third rotating shaft, and the two steel rings are respectively and fixedly connected in the fixing holes which are respectively arranged on the upper surface and the lower surface of the second shell, the lower surface of the second shell is respectively and fixedly connected with the upper surfaces of the two supporting seats through two elastic devices, and the two elastic devices are respectively positioned at the left side and the right side of the fixed hole, the opposite surfaces of the two supporting seats are respectively and fixedly connected with the two sides of a third rotating shaft, the side surface of the third rotating shaft is provided with a plurality of through holes, and one of the through holes is sleeved with a pin, the lower surface of the pin is respectively lapped with the upper surfaces of the two backing plates, and the lower surfaces of the two base plates are fixedly connected to the upper surface of the second shell, and the two base plates are respectively positioned at the left side and the right side of the fixing hole.
The upper surface and the lower surface of the inner wall of the second shell are respectively provided with a second sliding chute, a second sliding block is connected in each of the two second sliding chutes in a sliding manner, opposite surfaces of the two second sliding blocks are fixedly connected through a second connecting plate, the side surface of the second connecting plate is clamped with two second sliding sleeves, a second sliding rod is sleeved in each of the two second sliding sleeves, two ends of each of the two second sliding rods are respectively and fixedly connected to the right side surface of the inner wall of the second shell and the right side surface of the partition plate, a second spring is sleeved outside each of the two second sliding rods, two ends of each of the two second springs are respectively and fixedly connected to the right side surface of the second sliding sleeve and the right side surface of the inner wall of the second shell, the upper surface and the lower surface of the partition plate are respectively and fixedly connected to the upper surface and the lower surface of the inner wall of the second shell, the right side surface of the second connecting plate is clamped with a second bearing, and the second bearing is positioned between the two second sliding sleeves, and a second rotating shaft is sleeved in the second bearing, and the right end of the second rotating shaft penetrates through a second limiting hole formed in the right side surface of the second shell and is fixedly connected with the left side surface of the second connecting device through a second supporting seat.
The invention can also be a traction device for an automobile, preferably, the first connecting device comprises a first traction hook, the right end of the first traction hook is fixedly connected to the left side surface of the first connecting piece, and the upper surface of the first traction hook is provided with a first spring clamp.
The invention can also be a traffic machinery traction device with an adjusting function, and preferably, the second connecting device comprises a second traction hook, the left end of the second traction hook is fixedly connected to the right side surface of the second connecting piece, and the lower surface of the second traction hook is provided with a second spring clip.
The invention can also be a traction device for an automobile with an automatic adjusting function, preferably, the elastic device comprises a telescopic rod and a fourth spring sleeved on the outer surface of the telescopic rod, and two ends of the telescopic rod and the fourth spring are respectively and fixedly connected to the lower surface of the second shell and the upper surface of the supporting seat.
The invention can also be a novel traffic machinery traction device, preferably, the through hole and the pin are both rectangular, and the outer diameter of the pin is matched with the inner diameter of the through hole.
The invention can also be a vehicle traction device, preferably, the steering mechanism comprises an outer rack ring, a middle gear and an inner rack ring, the inner rack ring is clamped on the right side of the upper surface of the first shell, the outer rack ring is sleeved on the outer side of the third rotating shaft, the middle gear is positioned between the outer rack ring and the inner rack ring, the middle gear is meshed with the outer rack ring, and the middle gear is meshed with the inner rack ring.
The invention can also be a traffic machinery traction device for an accident vehicle, preferably, the outer side of the outer rack ring is provided with a blocking mechanism, the blocking mechanism comprises a third spring and a convex frame, the outer side of the outer rack ring is connected with the convex frame, the third spring is positioned in the convex frame, and two ends of the third spring are respectively connected with the outer side of the outer rack ring and the inner side of the convex frame.
Preferably, when the third spring is compressed to the limit, the distance from the outer side of the outer rack ring to the top surface of the convex frame is larger than the height of the teeth on the outer side of the outer rack ring.
Preferably, the distance from the outer side of the outer rack ring to the top surface of the boss frame when the third spring is compressed to the limit is 4/3-3/2 of the height of the teeth on the outer side of the outer rack ring.
Preferably, two ends of the third spring are respectively connected with the tooth crest at the outer side of the outer rack ring and the inner side of the convex frame.
Preferably, both ends of the third spring are respectively connected with the tooth concave surface on the outer side of the outer rack ring and the inner side of the convex frame.
Preferably, the inner rack ring inner side is equipped with separation mechanism, and separation mechanism includes third spring, protruding frame, and inner rack ring inner side is connected with protruding frame, and the third spring is located protruding frame, and inner rack ring inner side and protruding frame are inboard to be connected respectively at the both ends of third spring.
Preferably, when the third spring is compressed to the limit, the distance from the inner side of the inner rack ring to the top surface of the convex frame is larger than the height of the teeth on the inner side of the inner rack ring.
Preferably, the distance from the inner side of the inner rack ring to the top surface of the boss frame when the third spring is compressed to the limit is 4/3-3/2 of the height of the teeth on the inner side of the inner rack ring.
Preferably, both ends of the third spring are respectively connected with the tooth crest surface of the inner side of the inner rack ring and the inner side of the convex frame.
Preferably, both ends of the third spring are respectively connected with the concave tooth surface on the inner side of the inner rack ring and the inner side of the convex frame.
Preferably, the number of the blocking mechanisms is two, and the included angle between the two blocking mechanisms is 150 degrees and 180 degrees.
Preferably, the convex frame is made of flexible materials.
The invention can also be a traction device of the traffic machinery, preferably, the steering mechanism comprises a third bearing, a toothed ring and a gear, the third bearing is clamped on the right side of the upper surface of the first shell, the third bearing is sleeved outside the third rotating shaft, the toothed ring is sleeved outside the third rotating shaft, the top surface of the first shell is rotatably connected with a fourth rotating shaft, the fourth rotating shaft is fixedly connected with the gear, and the toothed ring is meshed with the gear.
Preferably, the gear outside is equipped with separation mechanism, and separation mechanism includes third spring, protruding frame, and the gear outside is connected with protruding frame, and the third spring is located protruding frame, and the gear outside and protruding frame inboard are connected respectively to the both ends of third spring.
Preferably, when the third spring is compressed to the limit, the distance from the outer side of the gear to the top surface of the convex frame is larger than the height of the teeth on the outer side of the gear.
Preferably, when the third spring is compressed to the limit, the distance from the outer side of the gear to the top surface of the convex frame is 4/3-3/2 of the height of the teeth on the outer side of the gear.
Preferably, two ends of the third spring are respectively connected with the tooth crest at the outer side of the gear and the inner side of the convex frame.
Preferably, both ends of the third spring are respectively connected with a tooth concave surface on the outer side of the gear and the inner side of the convex frame.
The invention can also be a traffic machinery traction device with high safety performance, preferably, the telescopic rod comprises an outer shell, the bottom end of the outer shell is fixedly connected to the upper surface of the supporting seat, a connecting hole is formed in the top end of the outer shell, an inner shell is sleeved in the connecting hole, the top end of the inner shell is fixedly connected to the lower surface of the second shell, a sliding plate is fixedly connected to the bottom end of the inner shell, and the left end and the right end of the sliding plate are respectively connected into third sliding grooves formed in the left side surface and the right side surface of the inner wall of the outer shell in a sliding mode.
Preferably, the first sliding groove is T-shaped, and the first sliding block is T-shaped.
Preferably, the second sliding groove is T-shaped, and the second sliding block is T-shaped.
(III) advantageous effects
The invention has the beneficial effects that:
1. the invention respectively fixes the first connecting device and the second connecting device on the carrying vehicle and the fault vehicle according to the vehicle type through the matching among the first rotating shaft, the first spring, the steering mechanism, the third rotating shaft, the second spring and the second rotating shaft, when the carrying vehicle is started, the fault vehicle causes the first spring and the second spring to be compressed in sequence due to inertia, the first spring and the second spring can respectively apply reverse elastic force to the first rotating shaft and the second rotating shaft by utilizing the elasticity of the first spring, when the carrying vehicle is braked, the fault vehicle causes the second spring and the first spring to be stretched in sequence due to inertia or untimely braking, the second spring and the first spring can respectively apply reverse elastic force to the second rotating shaft and the first rotating shaft by utilizing the elasticity of the first spring, so that the carrying vehicle is in rigid connection with the fault vehicle, the rear-end collision between the fault vehicle and the delivery vehicle due to reasons such as inertia and the like can be prevented, a certain buffer force is formed between the delivery vehicle and the fault vehicle, and further the impact force generated on the delivery vehicle due to inertia or untimely braking of the fault vehicle can be reduced, so that the delivery vehicle and the fault vehicle can be well protected.
2. According to the invention, through the arrangement of the through holes, the pins are inserted into different through holes, so that the height difference between the second shell and the first shell can be adjusted, and when people fix the first connecting device and the second connecting device on the trolley and the fault car, the first connecting device or the second connecting device can be positioned at the same height with the joint of the fault car, so that the installation work of people is more convenient.
3. According to the invention, the steel rings are arranged, the second shell is connected with the third rotating shaft through the two steel rings, so that the load resistance of the second shell can be improved, the first sliding block and the first sliding groove are arranged, the shapes of the first sliding groove and the first sliding block are both T-shaped, so that the first rotating shaft can drive the first connecting plate to move leftwards and rightwards in the first shell more flexibly in the process of moving leftwards and rightwards, the second sliding block and the second sliding groove are both T-shaped, so that the second rotating shaft can drive the second connecting plate to move leftwards and rightwards in the second shell more flexibly in the process of moving leftwards and rightwards, and the telescopic rod can reduce the deformation amount of the third spring which shakes leftwards and rightwards during telescopic motion through arrangement of the telescopic rod, so that the service life of the third spring can be ensured.
4. The steering mechanism replaces a bearing, and in the steering mechanism, the internal rack ring drives the middle gear to rotate, and the middle gear drives the external rack ring to rotate, so that the third rotating shaft is driven to rotate. The third rotating shaft is driven to rotate more slowly and stably through the bearing, so that the emergency vehicle can follow the stable lane change of the delivery vehicle when the delivery vehicle changes lanes, and cannot shake to cause the accident vehicle to turn on one side.
5. According to the invention, the blocking mechanism is arranged, the convex frame in the blocking mechanism is made of a flexible material, the convex frame is extruded by the teeth of the intermediate gear to deform, so that the third spring is pressed, the intermediate gear stops rotating due to the elasticity of the third spring, and when the third spring is compressed to the limit, the distance from the inner side of the internal rack ring to the top surface of the convex frame is greater than the height of the teeth on the inner side of the internal rack ring, so that the intermediate gear cannot pass through the convex frame. The two blocking mechanisms are arranged, and the included angle between the two blocking mechanisms is 150 degrees and 180 degrees. When the carrying vehicle is set to turn too much or the speed is too fast, the carrying vehicle is prevented from colliding with the side face of the accident vehicle, the included angle between the carrying vehicle and the accident vehicle is prevented from being too small, the accident vehicle is prevented from drifting away, the accident vehicle deviates and runs away from the original lane, and therefore the carrying vehicle is prevented from influencing the normal running of the vehicles on other lanes when carrying the accident vehicle, and the road traffic safety is guaranteed.
6. According to the steering mechanism, the third bearing drives the gear ring to rotate, and the gear ring drives the gear to rotate, so that the third rotating shaft is driven to rotate. The third rotating shaft is driven to rotate more slowly and stably through the bearing, so that the emergency vehicle can follow the stable lane change of the delivery vehicle when the delivery vehicle changes lanes, and cannot shake to cause the accident vehicle to turn on one side. Through set up separation mechanism on the gear, protruding frame among the separation mechanism is made by flexible material, extrudees protruding frame through the tooth of ring gear and makes protruding frame warp to oppress the third spring, the third spring lets the gear stall owing to self elasticity, because when the third spring compresses to the limit, the distance of the outside of gear to protruding frame top surface is greater than the height of the tooth in the outside of gear, so the ring gear is through protruding frame. When the carrying vehicle is set to turn too much or the speed is too fast, the carrying vehicle is prevented from colliding with the side face of the accident vehicle, the included angle between the carrying vehicle and the accident vehicle is prevented from being too small, the accident vehicle is prevented from drifting away, the accident vehicle deviates and runs away from the original lane, and therefore the carrying vehicle is prevented from influencing the normal running of the vehicles on other lanes when carrying the accident vehicle, and the road traffic safety is guaranteed.
Drawings
FIG. 1 is a schematic cross-sectional view illustrating a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram according to a first embodiment of the present invention;
fig. 3 is a schematic top view of a second housing according to a first embodiment of the invention;
FIG. 4 is a schematic top view of a steering mechanism according to a second embodiment of the present invention;
FIG. 5 is a schematic top view of a steering mechanism according to a third embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view illustrating a fourth embodiment of the present invention;
fig. 7 is a schematic top view of a steering mechanism according to a fourth embodiment of the present invention.
Fig. 8 is a schematic top view of a second, third, and fourth blocking mechanisms according to an embodiment of the present invention.
Fig. 9 is a schematic sectional view of a front view of the telescopic rod according to the fifth embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view of a first chute according to a sixth embodiment of the present invention;
FIG. 11 is a schematic sectional view of a second sliding chute according to a seventh embodiment of the present invention;
in the figure: 1 a first shell, 2 a first sliding chute, 3 a first sliding block, 4 a first connecting plate, 5 a first sliding sleeve, 6 a first sliding rod, 7 a first spring, 8 a first bearing, 9 a first rotating shaft, 10 a first limit hole, 11 a first connecting piece, 12 a first connecting device, 121 a first draw hook, 122 a first spring clip, 13 a steering mechanism, 14 a third rotating shaft, 15 steel rings, 16 a second shell, 17 an elastic device, 171 an expansion rod, 1711 an outer shell, 1712 a sliding plate, 1713 an inner shell, 1714 a third sliding chute, 1715 a connecting hole, 172 a fourth spring, 18 a supporting seat, 19 a through hole, 20 pins, 21 a backing plate, 22 a finger-pressing plate, 23 a second sliding chute, 24 a second sliding block, 25 a second connecting plate, 26 a second sliding sleeve, 27 a second sliding rod, 28 a clapboard, 29 a second spring, 30 a second bearing, 31 a second rotating shaft, 32 a second limit hole, 33 a second connecting piece, 34 a second connecting device, 341 a second spring clip, 342 second towing hook, 35 fixed hole, 36 external toothed bar ring, 37 intermediate gear, 38 internal toothed bar ring, 39 blocking mechanism, 40 third spring, 41 protruding frame, 42 third bearing, 43 toothed ring, 44 gear, 45 fourth rotating shaft.
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.
In the first embodiment, as shown in fig. 1 to 3, the present invention provides a technical solution: a transportation machinery traction device with an adjusting function comprises a first shell 1, wherein first sliding grooves 2 are formed in the upper surface and the lower surface of the inner wall of the first shell 1, first sliding blocks 3 are connected in the two first sliding grooves 2 in a sliding mode, the first sliding grooves 2 are T-shaped, the first sliding blocks 3 are arranged in the first sliding grooves 3 and the first sliding grooves 2, the first sliding grooves 2 and the first sliding blocks 3 are both T-shaped, so that a first rotating shaft 9 drives a first connecting plate 4 to move leftwards and rightwards in the first shell 1 more flexibly in the process of driving the first connecting plate 4 to move leftwards and rightwards, opposite surfaces of the two first sliding blocks 3 are fixedly connected through a first connecting plate 4, two first sliding sleeves 5 are clamped on the side surfaces of the first connecting plate 4, first sliding rods 6 are sleeved in the two first sliding sleeves 5, and by arranging the first sliding rods 6, the first sliding rods 6 can reduce the deformation of the first springs 7 which shake up and down in the telescopic motion, therefore, the service life of the first spring 7 can be ensured, two ends of the two first sliding rods 6 are respectively and fixedly connected with two side surfaces of the inner wall of the first shell 1, the first spring 7 is sleeved outside the two first sliding rods 6, two ends of the two first springs 7 are respectively and fixedly connected with the left side of the first sliding sleeve 5 and the left side surface of the inner wall of the first shell 1, the left side surface of the first connecting plate 4 is clamped with the first bearing 8, the first bearing 8 is positioned between the two first sliding sleeves 5, the first bearing 8 is sleeved with the first rotating shaft 9, through the arrangement of the first rotating shaft 9, the first connecting device 12 can rotate by taking the first bearing 8 as the center of a circle through the first rotating shaft 9, so that people can install the first connecting piece 11 more conveniently, the left end of the first rotating shaft 9 passes through the first limiting hole 10 formed in the left side surface of the first shell 1 and is fixedly connected with the right side surface of the first connecting piece 11, the left side surface of the first connecting piece 11 is fixedly connected with a first connecting device 12, the first connecting device 12 comprises a first traction hook 121, the right end of the first traction hook 121 is fixedly connected to the left side surface of the first connecting piece 11, a first spring clamp 122 is arranged on the upper surface of the first traction hook 121, and the first spring clamp 122 can reset through the arrangement of the first spring clamp 122, so that the first traction hook 121 is more stable when being connected with a trailer or a fault car.
A steering mechanism 13 is clamped on the right side of the upper surface of the first shell 1, a third rotating shaft 14 is sleeved in the steering mechanism 13, two steel rings 15 are sleeved on the outer surface of the third rotating shaft 14, the two steel rings 15 are respectively and fixedly connected in fixing holes 35 formed in the upper surface and the lower surface of the second shell 16, through the arrangement of the steel rings 15, the second shell 16 is connected with the third rotating shaft 14 through the two steel rings 15, so that the anti-load capacity of the second shell 16 can be improved, the lower surface of the second shell 16 is respectively and fixedly connected with the upper surfaces of the two supporting seats 18 through two elastic devices 17, each elastic device 17 comprises a telescopic rod 171 and a fourth spring 172 sleeved on the outer surface of the telescopic rod 171, two ends of the telescopic rod 171 and the fourth spring 172 are respectively and fixedly connected with the lower surface of the second shell 16 and the upper surface of the supporting seat 18, through the arrangement of the elastic devices 17, the pin 20 is inserted into one of the through holes 19, the elastic device 17 is always in a compressed state, the third spring 40 in the elastic device 17 can apply upward elastic force to the second housing 16 by utilizing the elasticity of the third spring, so that the connection between the pin 20 and the third rotating shaft 14 is tighter, the telescopic rod 171 comprises an outer housing 1711, the bottom end of the outer housing 1711 is fixedly connected to the upper surface of the supporting seat 18, the top end of the outer housing 1711 is provided with a connecting hole 1715, an inner housing 1713 is sleeved in the connecting hole 1715, the top end of the inner housing 1713 is fixedly connected to the lower surface of the second housing 16, the bottom end of the inner housing 1713 is fixedly connected with a sliding plate 1712, the left end and the right end of the sliding plate 1712 are respectively slidably connected to third sliding grooves 1714 formed in the left side and the right side surfaces of the inner wall of the outer housing 1711, by arranging the telescopic rod 171, the telescopic rod 171 can reduce the deformation amount of the left-right shaking of the third spring 40 during the telescopic movement, thereby ensuring the service life of the third spring 40, and the two elastic devices 17 are respectively located at the left side and the right side of the fixing hole 35, the opposite surfaces of the two supporting seats 18 are respectively fixedly connected to two sides of the third rotating shaft 14, the side surface of the third rotating shaft 14 is provided with a plurality of through holes 19, one of the through holes 19 is sleeved with a pin 20, the through holes 19 and the pin 20 are both rectangular, the outer diameter size of the pin 20 is matched with the inner diameter size of the through hole 19, the pin 20 is inserted into different through holes 19 by arranging the through hole 19, and further the height difference between the second shell 16 and the first shell 1 can be adjusted, so that when people fix the first connecting device 12 and the second connecting device 34 on a trolley and a fault car, the first connecting device 12 or the second connecting device 34 can be positioned at the same height with the joint of the fault car, therefore, the installation work of people is more convenient, the lower surfaces of the pin 20 are respectively overlapped with the upper surfaces of the two backing plates 21, and the lower surfaces of the two backing plates 21 are both fixedly connected to the upper surface of the second shell 16, and two backing plates 21 are respectively positioned at the left and right sides of the fixing hole 35.
The upper surface and the lower surface of the inner wall of the second shell 16 are both provided with second sliding grooves 23, and the two second sliding grooves 23 are both connected with second sliding blocks 24 in a sliding manner, the shape of the second sliding groove 23 is T-shaped, the shape of the second sliding block 24 is T-shaped, by arranging the second sliding blocks 24 and the second sliding grooves 23, the shapes of the second sliding grooves 23 and the second sliding blocks 24 are both T-shaped, so that the second rotating shaft 31 can drive the second connecting plate 25 to move more flexibly in the process of moving left and right in the second shell 16, the opposite surfaces of the two second sliding blocks 24 are fixedly connected through the second connecting plate 25, the side surface of the second connecting plate 25 is clamped with two second sliding sleeves 26, the two second sliding sleeves 26 are both sleeved with second sliding rods 27, and both ends of the two second sliding rods 27 are respectively fixedly connected to the right side surface of the inner wall of the second shell 16 and the right side surface of the partition plate 28, the two second sliding rods 27 are both sleeved with second springs 29, the two ends of the two second springs 29 are respectively and fixedly connected with the right side of the second sliding sleeve 26 and the right side of the inner wall of the second housing 16, by arranging the second sliding rod 27, the second sliding rod 27 can reduce the deformation amount of the second spring 29 which swings up and down when doing telescopic motion, thereby ensuring the service life of the second spring 29, the upper surface and the lower surface of the partition plate 28 are respectively and fixedly connected with the upper surface and the lower surface of the inner wall of the second housing 16, the right side of the second connecting plate 25 is connected with the second bearing 30 in a clamping manner, the second bearing 30 is positioned between the two second sliding sleeves 26, the second bearing 30 is connected with the second rotating shaft 31 in a sleeving manner, the right end of the second rotating shaft 31 passes through the second limiting hole 32 arranged on the right side of the second housing 16 and is fixedly connected with the left side of the second connecting device 34 through the second supporting seat 18, the second connecting device 34 comprises a second traction hook 342, the left end of the second traction hook 342 is fixedly connected with the right side of the second connecting piece 33, the lower surface of the second towing hook 342 is provided with a second spring catch 341, and the second spring catch 341 can perform reset movement by the arrangement of the second spring catch 341, so that the second towing hook 342 can be more stable when being connected with a tow truck or a breakdown truck.
Second embodiment as shown in fig. 4 and 8, the steering mechanism 13 includes an outer rack ring 36, an intermediate gear 37, and an inner rack ring 38, the inner rack ring 38 is snap-fitted to the right side of the upper surface of the first housing 1, the outer rack ring 36 is fitted to the outer side of the third rotating shaft 14, the intermediate gear 37 is located between the outer rack ring 36 and the inner rack ring 38, the intermediate gear 37 is engaged with the outer rack ring 36, and the intermediate gear 37 is engaged with the inner rack ring 38.
The outer side of the outer rack ring 36 is provided with a blocking mechanism 39, the blocking mechanism 39 comprises a third spring 40 and a protruding frame 41, the outer side of the outer rack ring 36 is connected with the protruding frame 41, the third spring 40 is located in the protruding frame 41, and two ends of the third spring 40 are respectively connected with the outer side of the outer rack ring 36 and the inner side of the protruding frame 41.
When the third spring 40 is compressed to the limit, the distance from the outer side of the outer rack ring 36 to the top surface of the convex frame 41 is larger than the height of the teeth on the outer side of the outer rack ring 36.
When the third spring 40 is compressed to the limit, the distance from the outer side of the outer rack ring 36 to the top surface of the raised frame 41 is 4/3-3/2 of the height of the teeth on the outer side of the outer rack ring 36.
Two ends of the third spring 40 are respectively connected with the tooth crest at the outer side of the outer rack ring 36 and the inner side of the convex frame 41.
Two ends of the third spring 40 are respectively connected with the concave tooth surface on the outer side of the outer rack ring 36 and the inner side of the convex frame 41.
In a third embodiment, as shown in fig. 5 and 8, a blocking mechanism 39 is disposed on the inner side of the inner rack ring 38, the blocking mechanism 39 includes a third spring 40 and a protruding frame 41, the protruding frame 41 is connected to the inner side of the inner rack ring 38, the third spring 40 is located in the protruding frame 41, and two ends of the third spring 40 are respectively connected to the inner side of the inner rack ring 38 and the inner side of the protruding frame 41.
The number of the blocking mechanisms 39 is two, and the included angle between the two blocking mechanisms 39 is 150 degrees and 180 degrees.
The protruding frame 41 is made of a flexible material.
When the third spring 40 is compressed to the limit, the distance from the inner side of the inner rack ring 38 to the top surface of the boss 41 is greater than the height of the teeth on the inner side of the inner rack ring 38.
The distance from the inside of the inner rack ring 38 to the top surface of the raised frame 41 when the third spring 40 is compressed to the limit is 4/3-3/2 of the height of the teeth inside the inner rack ring 38.
The two ends of the third spring 40 are respectively connected with the tooth crest surface of the inner side of the inner rack ring 38 and the inner side of the convex frame 41.
The two ends of the third spring 40 are respectively connected with the concave tooth surface on the inner side of the inner rack ring 38 and the inner side of the convex frame 41.
In the fourth embodiment, as shown in fig. 6 to 8, the steering mechanism 13 includes a third bearing 42, a toothed ring 43, and a gear 44, the third bearing 42 is engaged with the right side of the upper surface of the first housing 1, the third bearing 42 is sleeved outside the third rotating shaft 14, the toothed ring 43 is sleeved outside the third rotating shaft 14, the fourth rotating shaft 45 is rotatably connected to the top surface of the first housing 1, the fourth rotating shaft 45 is fixedly connected to the gear 44, and the toothed ring 43 is engaged with the gear 44.
The blocking mechanism 39 is arranged on the outer side of the gear 44, the blocking mechanism 39 comprises a third spring 40 and a convex frame 41, the convex frame 41 is connected to the outer side of the gear 44, the third spring 40 is located in the convex frame 41, and two ends of the third spring 40 are respectively connected with the outer side of the gear 44 and the inner side of the convex frame 41.
When the third spring 40 is compressed to the limit, the distance from the outer side of the gear 44 to the top surface of the boss frame 41 is greater than the height of the teeth on the outer side of the gear 44.
When the third spring 40 is compressed to the limit, the distance from the outer side of the gear 44 to the top surface of the boss 41 is 4/3-3/2 of the height of the teeth on the outer side of the gear 44.
The two ends of the third spring 40 are respectively connected with the tooth crest at the outer side of the gear 44 and the inner side of the convex frame 41.
The two ends of the third spring 40 are respectively connected with the concave tooth surface on the outer side of the gear 44 and the inner side of the convex frame 41.
In a fifth embodiment, as shown in fig. 9, the telescopic rod 171 includes an outer housing 1711, the bottom end of the outer housing 1711 is fixedly connected to the upper surface of the supporting seat 18, a connecting hole 1715 is formed in the top end of the outer housing 1711, an inner housing 1713 is sleeved in the connecting hole 1715, the top end of the inner housing 1713 is fixedly connected to the lower surface of the second housing 16, a sliding plate 1712 is fixedly connected to the bottom end of the inner housing 1713, and the left end and the right end of the sliding plate 1712 are respectively slidably connected to third sliding grooves 1714 formed in the left side surface and the right side surface of the inner wall of the outer housing 1711.
Sixth embodiment as shown in fig. 10, the first sliding groove 2 is T-shaped, and the first slider 3 is T-shaped.
Seventh embodiment as shown in fig. 11, the second sliding groove 23 is T-shaped, and the second slider 24 is T-shaped.
The method comprises the following operation steps:
s1, firstly, adjusting the height difference between the first connecting device 12 and the second connecting device 34 according to the models of the trolley and the fault car, simultaneously pressing the two finger-pressure plates 22 and taking the pins 20 out of the through holes 19, then pressing the two finger-pressure plates 22 again to make the second shell 16 move downwards, when the second shell 16 descends to a proper position, inserting the pins 20 into the corresponding through holes 19, then slowly removing the pressure acting on the two finger-pressure plates 22, and applying an upward elastic force to the second shell 16 by the third spring 40 in the elastic device 17 through the elasticity of the third spring 40, so that the connection between the pins 20 and the third rotating shaft 14 is tighter and the pins are tightly attached to the two backing plates 21;
s2, sequentially pressing the first spring clip 122 and the second spring clip 341 to respectively couple the first traction hook 121 and the second traction hook 342 to the trolley and the faulty vehicle, when the trolley starts, the faulty vehicle will sequentially compress the first spring 7 and the second spring 29 due to inertia, the first spring 7 and the second spring 29 can respectively apply reverse elasticity to the first rotating shaft 9 and the second rotating shaft 31 by using their own elasticity, when the trolley brakes, the faulty vehicle will sequentially stretch the second spring 29 and the first spring 7 due to inertia or untimely braking, the second spring 29 and the first spring 7 can respectively apply reverse elasticity to the second rotating shaft 31 and the first rotating shaft 9 by using their own elasticity, so that the faulty vehicle can be prevented from rear-end collision with the trolley due to inertia and the like under the condition that the trolley is rigidly connected with the faulty vehicle, certain buffer force is generated between the hauling vehicle and the fault vehicle, so that the impact force generated by the fault vehicle due to inertia or untimely braking on the hauling vehicle can be reduced;
and S3, when the consignment vehicle turns, the internal rack ring 38 drives the intermediate gear 37 to rotate, and the intermediate gear 37 drives the external rack ring 36 to rotate, so that the third rotating shaft 14 is driven to rotate. When the intermediate gear 37 rotates to the position of the convex frame 41 of the inner rack ring 38 or the outer rack ring 36, the teeth of the intermediate gear 37 crush the convex frame 41 to deform the convex frame 41, so that the third spring 40 in the convex frame 41 stops the rotation of the intermediate gear 37 due to the self elastic force, and the third rotating shaft 14 does not rotate any more, therefore, the steering mechanism 13 can slowly rotate the third rotating shaft 14, and the problem that a faulty vehicle is thrown out due to too fast speed or too large amplitude when the tow truck changes lanes or turns is prevented, thereby threatening the road traffic safety.
And S4, when the consignment vehicle turns, the third bearing 42 drives the gear ring 43 to rotate, and the gear ring 43 drives the gear 44 to rotate, so that the third rotating shaft 14 is driven to rotate. When the position of the convex frame 41 on the gear 44 rotates to the outer side of the gear ring 43, the convex frame 41 on the gear 44 is extruded by the gear ring 43 to be deformed, so that the third spring 40 in the convex frame 41 stops the rotation of the gear 44 due to the self elastic force, and the third rotating shaft 14 does not rotate any more, therefore, the steering mechanism 13 can slowly rotate the third rotating shaft 14, and the problem that the fault vehicle is thrown out when the trolley changes lanes or turns is prevented from too fast or too large in amplitude, and the road traffic safety is threatened.
The above embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A traction device for a vehicle with an adjustment function, comprising a first casing (1), characterized in that: the upper surface and the lower surface of the inner wall of the first shell (1) are respectively provided with a first sliding chute (2), the two first sliding chutes (2) are respectively connected with a first sliding block (3) in a sliding manner, opposite surfaces of the two first sliding blocks (3) are fixedly connected through a first connecting plate (4), the side surface of the first connecting plate (4) is clamped with two first sliding sleeves (5), the two first sliding sleeves (5) are respectively sleeved with a first sliding rod (6), two ends of the two first sliding rods (6) are respectively fixedly connected with two side surfaces of the inner wall of the first shell (1), the two first sliding rods (6) are respectively sleeved with a first spring (7), two ends of the two first springs (7) are respectively fixedly connected with the left side of the first sliding sleeves (5) and the left side surface of the inner wall of the first shell (1), the left side surface of the first connecting plate (4) is clamped with a first bearing (8), a first bearing (8) is positioned between the two first sliding sleeves (5), a first rotating shaft (9) is sleeved in the first bearing (8), the left end of the first rotating shaft (9) penetrates through a first limiting hole (10) formed in the left side surface of the first shell (1) and is fixedly connected to the right side surface of a first connecting piece (11), and a first connecting device (12) is fixedly connected to the left side surface of the first connecting piece (11);
the right side of the upper surface of the first shell (1) is clamped with a steering mechanism (13), a third rotating shaft (14) is sleeved in the steering mechanism (13), the outer surface of the third rotating shaft (14) is sleeved with two steel rings (15), the two steel rings (15) are respectively and fixedly connected in fixing holes (35) formed in the upper surface and the lower surface of the second shell (16), the lower surface of the second shell (16) is respectively and fixedly connected with the upper surfaces of the two supporting seats (18) through two elastic devices (17), the lower surface of the second shell (16) is respectively and fixedly connected with the upper surfaces of the two supporting seats (18) through the two elastic devices (17), the two elastic devices (17) are respectively positioned on the left side and the right side of the fixing holes (35), and the opposite surfaces of the two supporting seats (18) are respectively and fixedly connected with the two sides of the third rotating shaft (14), a plurality of through holes (19) are formed in the side face of the third rotating shaft (14), a pin (20) is sleeved in one through hole (19), the lower surface of the pin (20) is respectively overlapped with the upper surfaces of the two base plates (21), the lower surfaces of the two base plates (21) are fixedly connected to the upper surface of the second shell (16), and the two base plates (21) are respectively positioned on the left side and the right side of the fixing hole (35);
the upper surface and the lower surface of the inner wall of the second shell (16) are respectively provided with a second sliding chute (23), the two second sliding chutes (23) are respectively connected with a second sliding block (24) in a sliding manner, opposite surfaces of the two second sliding blocks (24) are fixedly connected through a second connecting plate (25), the side surface of the second connecting plate (25) is clamped with two second sliding sleeves (26), the two second sliding sleeves (26) are respectively sleeved with a second sliding rod (27), two ends of the two second sliding rods (27) are respectively fixedly connected with the right side surface of the inner wall of the second shell (16) and the right side surface of the partition plate (28), the two second sliding rods (27) are respectively sleeved with a second spring (29), and two ends of the two second springs (29) are respectively fixedly connected with the right side surface of the second sliding sleeve (26) and the right side surface of the inner wall of the second shell (16), the upper surface and the lower surface of the partition plate (28) are fixedly connected to the upper surface and the lower surface of the inner wall of the second shell (16) respectively, the right side surface of the second connecting plate (25) is connected with a second bearing (30) in a clamping mode, the second bearing (30) is located between the two second sliding sleeves (26), a second rotating shaft (31) is sleeved in the second bearing (30), and the right end of the second rotating shaft (31) penetrates through a second limiting hole (32) formed in the right side surface of the second shell (16) and is fixedly connected with the left side surface of the second connecting device (34) through a second supporting seat (18);
the steering mechanism (13) comprises an outer rack ring (36), a middle gear (37) and an inner rack ring (38), the inner rack ring (38) is clamped on the right side of the upper surface of the first shell (1), the outer rack ring (36) is sleeved on the outer side of the third rotating shaft (14), the middle gear (37) is located between the outer rack ring (36) and the inner rack ring (38), the middle gear (37) is meshed with the outer rack ring (36), and the middle gear (37) is meshed with the inner rack ring (38);
the inner side of the inner rack ring (38) is provided with two blocking mechanisms (39), each blocking mechanism (39) comprises a third spring (40) and a protruding frame (41), the protruding frame (41) is connected to the inner side of the inner rack ring (38), the third springs (40) are located in the protruding frames (41), two ends of each third spring (40) are respectively connected to the inner side of the inner rack ring (38) and the inner side of each protruding frame (41), and an included angle between the two blocking mechanisms (39) is 180 degrees;
the elastic device (17) comprises an expansion link (171) and a fourth spring (172) sleeved on the outer surface of the expansion link (171), and two ends of the expansion link (171) and the fourth spring (172) are respectively and fixedly connected to the lower surface of the second shell (16) and the upper surface of the supporting seat (18);
telescopic link (171) include shell (1711), the bottom fixed connection of shell (1711) is at the upper surface of supporting seat (18), connecting hole (1715) have been seted up on the top of shell (1711), inner shell (1713) are equipped with to connecting hole (1715) endotheca, the top fixed connection of inner shell (1713) is at the lower surface of second casing (16), the bottom fixed connection of inner shell (1713) has slide (1712), both ends difference sliding connection is in third spout (1714) that shell (1711) inner wall left and right sides face was all seted up about slide (1712).
2. A vehicular traction device with adjustment function according to claim 1, characterized in that: the first sliding groove (2) is T-shaped, and the first sliding block (3) is T-shaped.
3. A vehicular traction device with adjustment function according to claim 1, characterized in that: the through hole (19) and the pin (20) are both rectangular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998819.XA CN109080389B (en) | 2018-08-30 | 2018-08-30 | Transportation machinery traction equipment with adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998819.XA CN109080389B (en) | 2018-08-30 | 2018-08-30 | Transportation machinery traction equipment with adjusting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109080389A CN109080389A (en) | 2018-12-25 |
| CN109080389B true CN109080389B (en) | 2021-10-19 |
Family
ID=64795163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810998819.XA Active CN109080389B (en) | 2018-08-30 | 2018-08-30 | Transportation machinery traction equipment with adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109080389B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291109B (en) * | 2021-06-03 | 2022-11-08 | 湖南石牛汽车制造有限公司 | Trailer connecting device for cargo transportation semitrailer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203920299U (en) * | 2014-05-27 | 2014-11-05 | 宁波天益齿轴齿轮有限公司 | A kind of anti-oscillating tractor |
| CN104153638A (en) * | 2014-08-06 | 2014-11-19 | 胡建明 | Full-automatic automobile cover |
| CN205776008U (en) * | 2016-07-08 | 2016-12-07 | 深圳市双繁科技有限公司 | A kind of automatic lifting bumping post |
| CN107627798A (en) * | 2017-09-29 | 2018-01-26 | 江阴市永昌交通机械部件有限公司 | A kind of traffic machinery draw-gear |
| CN207374044U (en) * | 2017-10-23 | 2018-05-18 | 天津市飞马起重吊索具有限公司 | A kind of high-strength vehicle traction rope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10603967B2 (en) * | 2016-11-10 | 2020-03-31 | Ryan E. A. S. Shaffer | Pivoting trailer hitch |
-
2018
- 2018-08-30 CN CN201810998819.XA patent/CN109080389B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203920299U (en) * | 2014-05-27 | 2014-11-05 | 宁波天益齿轴齿轮有限公司 | A kind of anti-oscillating tractor |
| CN104153638A (en) * | 2014-08-06 | 2014-11-19 | 胡建明 | Full-automatic automobile cover |
| CN205776008U (en) * | 2016-07-08 | 2016-12-07 | 深圳市双繁科技有限公司 | A kind of automatic lifting bumping post |
| CN107627798A (en) * | 2017-09-29 | 2018-01-26 | 江阴市永昌交通机械部件有限公司 | A kind of traffic machinery draw-gear |
| CN207374044U (en) * | 2017-10-23 | 2018-05-18 | 天津市飞马起重吊索具有限公司 | A kind of high-strength vehicle traction rope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109080389A (en) | 2018-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109080389B (en) | Transportation machinery traction equipment with adjusting function | |
| CN109080390A (en) | A kind of traffic machinery traction device with automatic regulation function | |
| CN110834578A (en) | Trailer with inertia forward rush protection function | |
| CN201597554U (en) | Seat-belt pretensioner | |
| JPS58128955A (en) | Tunnel self-advancing car | |
| CN109131415A (en) | A kind of Automatic Link Establishment | |
| JPH03504525A (en) | vehicle restraint device | |
| CN208752692U (en) | A kind of automobile data recorder with shockproof function | |
| CN109080388A (en) | A kind of traffic machinery traction device | |
| CN109555032A (en) | A kind of deceleration strip | |
| CN212151238U (en) | Anti-falling mechanism and movement device with same | |
| CN211151391U (en) | Automobile wire harness corrugated pipe connection is with pricking knot | |
| CN214228333U (en) | Vehicle-mounted wide-angle camera | |
| CN209079869U (en) | A kind of automobile forced brake device and load-carrying motor vehicle | |
| CN106677220B (en) | A kind of manhole lid device with alarm function | |
| CN110194051B (en) | Vehicle cover installation device and method | |
| CN204368068U (en) | The bumper for car of automatic telescopic before and after energy | |
| CN208868169U (en) | A kind of rope-climbed robot structure | |
| CN108909380B (en) | Trailer device with buffer function | |
| CN113147823A (en) | Rail clamping device for discharging car, discharging car comprising rail clamping device and braking method | |
| CN110962098A (en) | Automobile overhaul service creeper | |
| CN112696463A (en) | Worm self-locking type unidirectional rotating mechanism | |
| CN109334636A (en) | A kind of automobile forced brake device and load-carrying motor vehicle | |
| CN220202516U (en) | Anti-collision access control barrier gate | |
| CN206217911U (en) | Unidirectional hook automatic brake formula mine car with flute profile braking rail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |