CN111114220A - Trailer traction device - Google Patents
Trailer traction device Download PDFInfo
- Publication number
- CN111114220A CN111114220A CN202010100019.9A CN202010100019A CN111114220A CN 111114220 A CN111114220 A CN 111114220A CN 202010100019 A CN202010100019 A CN 202010100019A CN 111114220 A CN111114220 A CN 111114220A
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- resistor
- diode
- towing
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- capacitor
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- 239000003990 capacitor Substances 0.000 claims description 38
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
-
- 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 provides a trailer traction device, which comprises a traction piece arranged at the tail part of a tractor, wherein the traction piece comprises: lifter plate, pull even board, locking device and base, during the use, the tail at the tractor is fixed to the base, the lifter plate be used for right pull even board and carry out the oscilaltion, will when the height through by traction vehicle the lifter plate with pull even after the altitude mixture control of board is good, utilize locking device will pull even board and lifter plate and connect for both can be fixed as an organic whole, just so can realize just so that highly adjusting at any time according to by traction vehicle the height of traction member has improved greatly the rate of utilization of traction member has greatly made things convenient for can be according to by trailer height adjustment at any time when the open-air trailer the height of traction member.
Description
Technical Field
The invention relates to the technical field of vehicle traction, in particular to a trailer traction device.
Background
With the rapid development of economy in China and the great investment of China in highway construction, highway transportation has become a main transportation mode in China. The semi-trailer tractor serves as main equipment for road transportation, and is widely applied due to the advantages of strong specialization, large loading capacity and quick transportation. When the tractor is used, due to the fact that the height of a vehicle to be dragged is different, when different tractors are dragged, the traction pieces with different heights need to be replaced, and the tractor is very inconvenient.
Disclosure of Invention
The invention provides a trailer traction device which is used for adjusting vehicles with different heights to be towed, thereby achieving the purpose of reducing the configuration of various traction pieces for vehicles with multiple heights.
The invention provides a trailer traction device, which comprises a traction piece arranged at the tail part of a tractor, wherein the traction piece comprises: the tractor comprises a lifting plate, a traction connecting plate, a locking device and a base, wherein the base is arranged at the bottom of the lifting plate and used for being fixed at the tail of a tractor; and one end of the traction connecting plate, which is far away from the lifting plate, is used for drawing the vehicle.
Preferably, one side of the lifting plate connected with the traction connecting plate is provided with a slide way, one side of the connecting plate close to the lifting plate is provided with a sliding plate, and the sliding plate reciprocates in the slide way.
Preferably, the locking device includes: the clamp comprises a vertical plate, a plurality of limiting columns and a clamping rod, wherein one side of the vertical plate is provided with the plurality of limiting columns at intervals, one end, far away from the vertical plate, of each limiting column is circumferentially provided with a first limiting hole in a penetrating mode on the outer wall, the first limiting holes of the limiting columns are coaxially arranged, and the first limiting holes are used for being inserted into the clamping rod in a penetrating mode; a limiting table is arranged at the top end of the clamping rod, and a first handle is arranged at one end, far away from the clamping rod, of the limiting table; a plurality of second limiting holes are formed in the lifting plate at intervals, and the limiting columns penetrate through the sliding plate from one side of the sliding plate to the second limiting holes.
Preferably, one side of the vertical plate, which is far away from the limiting column, is provided with a second handle.
Preferably, a traction rod for connecting a vehicle to be towed is arranged on one side of the traction connecting plate, which is far away from the locking device, and a plurality of third limiting holes for fixing on a tractor are arranged on the base at intervals.
Preferably, the traction connecting plates are of a U-shaped structure, the traction connecting plates are symmetrically arranged on two sides of the sliding plate, one ends, far away from the sliding plate, of the traction connecting plates are detachably connected with the traction rods through bolts, through holes are formed in the traction connecting plates, the traction rods penetrate through the through holes of the two traction connecting plates, and the traction rods are fixed on the traction connecting plates through bolts.
Preferably, one side of the base, which is close to the pulled vehicle, is also connected with an extension plate, an extension rod is fixed on the upper surface of the extension plate, a spring is sleeved on the circumferential outer wall of the extension rod, and the top of the extension rod is connected with a top plate; the roof panel is used for abutting against the lower portion of a traction rod of a pulled vehicle.
Preferably, be provided with the control panel in the extension board, the control panel is connected with the electro-magnet, the roof is established to the magnetic affinity material, the control panel includes control circuit, control circuit includes: the LED lamp comprises resistors R, capacitor C, diode D, D and triodes V, V and V, wherein one end of the resistor R is an input end, the other end of the resistor R is respectively connected with the resistor R and the anode of the diode D, the cathode of the diode D is connected with the capacitor C, the other end of the capacitor C is connected with the resistor R, the other end of the resistor R is connected with the anode of the diode D, the cathode of the diode D7 is connected with the resistor R, the other end of the resistor R is connected with the capacitor C, the other end of the capacitor C is connected with the capacitor C, and the other end of the capacitor C is connected with the anode of the diode D, the cathode of the diode D6 is connected with one end of the resistor R2 far away from the resistor R1; an output end is connected between the resistor R8 and the resistor R10 in parallel, the output end comprises a diode D5 and a resistor R11, the anode of the diode D5 is connected between the resistor R8 and the resistor R10, the other end of the diode D5 is connected with the resistor R11, and the other end of the resistor R11 is an output end; a resistor R is connected in parallel between the resistor R and the resistor R, the other end of the resistor R is connected with the cathode of a diode D, the anode of the diode D is connected with a capacitor C, the other end of the capacitor C is connected with the base electrode of a triode V, the emitting electrode of the triode V is connected between the capacitor C and the resistor R, the collector electrode of the triode V is connected with the anode of the diode D, the cathode of the diode D is connected between the anode of the diode D and the capacitor C, the resistor R is connected in parallel between the cathode of the diode D and the resistor R, the other end of the resistor R is connected with the base electrode of the triode V, the emitting electrode of the triode V is connected with the resistor R, the other end of the resistor R is connected between the resistor R and the collector electrode of the triode V, the collector electrode of the, the other end of the resistor R12 is connected with a resistor R7, the other end of the resistor R7 is connected between the resistor R5 and the anode of the diode D7, the resistor R7 is further connected with the base of a triode V1, the collector of the triode V1 is connected between the cathode of the diode D7 and the resistor R8, the emitter of the triode V1 is connected with the resistor R13, the other end of the resistor R13 is connected between a capacitor C5 and the resistor R17, the resistor R14 is connected between the resistor R13 and the emitter of the triode V1, and the other end of the resistor R14 is connected between the resistor R8 and the resistor R10.
The invention has the beneficial effects that:
during the use, the base is fixed at the afterbody of tractor, the lifter plate is used for right it carries out the oscilaltion to pull even board, will when through the height by haulage vehicle the lifter plate with after the altitude mixture control of pulling even board is good, utilize locking device will pull even board and lifter plate and connect for both can be fixed as an organic whole, just so can realize just from this adjusting at any time according to the height by haulage vehicle the height of pulling the piece, improved greatly the rate of utilization of pulling the piece, very big having made things convenient for can be according to by the trailer height adjust at any time when the field trailer the height of pulling the piece.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the traction link plate and the slide plate of the present invention;
FIG. 3 is a schematic diagram of an extended plate structure according to the present invention;
FIG. 4 is a control circuit diagram of the present invention;
the device comprises a lifting plate 1, a locking device 2, a traction connecting plate 3, a slideway 4, a sliding plate 5, a first handle 6, a vertical plate 7, a limiting column 8, a clamping rod 9, a first limiting hole 10, a second handle 11, a third limiting hole 12, a second limiting hole 13, a traction rod 14, a base 15, a traction rod 16, a bolt 17, an extension plate 18, a telescopic rod 19, a spring 20 and a top plate 21.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
According to fig. 1, an embodiment of the present invention provides a trailer towing apparatus, which is characterized by comprising a towing member provided at a tail portion of a towing vehicle, the towing member including: the tractor comprises a lifting plate 1, a traction connecting plate 3, a locking device 2 and a base 15, wherein the base 15 is arranged at the bottom of the lifting plate 1, the base 15 is used for being fixed at the tail part of a tractor, the lifting plate 1 is vertically fixed on the upper surface of the base 15, the traction connecting plate 3 is arranged on the right side of the lifting plate 1 in a sliding manner, and the traction connecting plate 3 is fixed on the lifting plate 1 through the locking device 2; the end of the traction link plate 3 remote from the lifting plate 1 is used for pulling the vehicle.
During the use, the base is fixed at the afterbody of tractor, the lifter plate is used for right it carries out the oscilaltion to pull even board, will when through the height by haulage vehicle the lifter plate with after the altitude mixture control of pulling even board is good, utilize locking device will pull even board and lifter plate and connect for both can be fixed as an organic whole, just so can realize just from this adjusting at any time according to the height by haulage vehicle the height of pulling the piece, improved greatly the rate of utilization of pulling the piece, very big having made things convenient for can be according to by the trailer height adjust at any time when the field trailer the height of pulling the piece.
According to the figure 1, one side of the lifting plate 1, which is connected with the traction connecting plate 3, is provided with a slide way 4, one side of the connecting plate, which is close to the lifting plate 1, is provided with a sliding plate 5, and the sliding plate 5 reciprocates in the slide way 4.
When the traction connecting plate is used, the traction connecting plate moves back and forth on the slide way through the slide plate, so that the purpose of adjusting the height of the traction connecting plate is achieved; and the slide ways can clamp two sides of the traction connecting plate, so that the condition that the pulled vehicle overturns due to the fact that the amplitude of swing of the traction connecting plate is large in the turning process of the tractor is limited is avoided.
According to fig. 1, the locking device 2 comprises: the fixing device comprises a vertical plate 7, a plurality of limiting columns 8 and a clamping rod 9, wherein a plurality of limiting columns 8 are arranged on one side of the vertical plate 7 at intervals, a first limiting hole 10 which penetrates through the limiting columns is formed in the circumferential outer wall of one end, far away from the vertical plate 7, of each limiting column 8, the first limiting holes 10 of the limiting columns 8 are coaxially arranged, and the first limiting holes 10 are used for being inserted into the clamping rod 9 in a penetrating mode; a limiting table is arranged at the top end of the clamping rod 9, and a first handle 6 is arranged at one end, far away from the clamping rod 9, of the limiting table; a plurality of second limiting holes 13 are formed in the lifting plate 1 at intervals, and the limiting columns 8 penetrate through the sliding plate 5 from one side of the sliding plate 5 to the second limiting holes 13.
When the height of the traction piece is determined, the second handle is held by a hand, and one end of the clamping rod is inserted into the through hole of the sliding plate and the second limiting hole arranged on the lifting plate; at this time, the height of the traction member is fixed; then, the clamping rod is held by hand, the first handle of the clamping rod is positioned above the clamping rod, and the lower portion of the clamping rod is inserted into the first limiting hole of the limiting column, so that the lifting plate and the sliding plate are fixed by the tightening device, and the purpose that the connecting plate is fixed on the lifting plate after height adjustment is achieved.
According to the illustration in fig. 1, a second handle 11 is arranged on one side of the vertical plate 7 away from the limiting column 8. When the traction piece and the lifting plate are fixed, the locking device is inserted into the sliding plate 5 by pulling or holding the second handle, and further penetrates through the second limiting hole of the lifting plate. Or when the traction piece and the lifting plate are disassembled, the purpose of the tightening device can be conveniently held.
According to the figure 1, a draw bar 14 for connecting a vehicle to be drawn is arranged on one side of the drawing connecting plate 3 away from the locking device 2, and a plurality of third limiting holes 12 for fixing on a tractor are arranged on the base 15 at intervals. The base can be conveniently fixed at the tail part of the tractor through the third limiting hole 12, so that one end of the traction piece can be connected with the tractor, and the other end of the traction piece can be connected with a pulled vehicle.
According to the figure 2, the traction connecting plate 3 is of a U-shaped structure, the traction connecting plate 3 is symmetrically arranged on two sides of the sliding plate 5, one end, far away from the sliding plate 5, of the traction connecting plate 3 is detachably connected with a traction rod 16 through a bolt 17, a through hole is formed in the traction connecting plate 3, the traction rod 16 penetrates through the through holes of the two traction connecting plates 3, and the traction rod 16 is fixed on the traction connecting plate 3 through the bolt 17. The traction rod is used for hanging or fixing a vehicle to be towed at the end part of the traction connecting rod, and therefore the purpose of quick installation is achieved. The construction efficiency in the drawing process is greatly improved.
According to the figure 3, an extension plate 18 is further connected to one side, close to the pulled vehicle, of the base 15, a telescopic rod 19 is fixed to the upper surface of the extension plate 18, a spring 20 is sleeved on the circumferential outer wall of the telescopic rod 19, and a top plate 21 is connected to the top of the telescopic rod 19; the roof panel 21 is intended to rest under the tow bar 16 of the vehicle being towed.
The telescopic rod and the spring are used for damping the traction end of the pulled vehicle, the situation that hard collision occurs between the pulled vehicle and the traction rod due to the fact that the road surface of the pulled vehicle is uneven in the transportation process is reduced, and the service life of the traction piece is greatly prolonged.
As shown in fig. 3 and 4, a control plate is disposed in the extension plate 18, the control plate is connected to an electromagnet, the top plate 21 is made of a magnetic material, the control plate includes a control circuit, and the control circuit includes: the LED lamp comprises resistors R, capacitor C, diode D, D and triodes V, V and V, wherein one end of the resistor R is an input end, the other end of the resistor R is respectively connected with the resistor R and the anode of the diode D, the cathode of the diode D is connected with the capacitor C, the other end of the capacitor C is connected with the resistor R, the other end of the resistor R is connected with the anode of the diode D, the cathode of the diode D7 is connected with the resistor R, the other end of the resistor R is connected with the capacitor C, the other end of the capacitor C is connected with the capacitor C, and the other end of the capacitor C is connected with the anode of the diode D, the cathode of the diode D6 is connected with one end of the resistor R2 far away from the resistor R1; an output end is connected between the resistor R8 and the resistor R10 in parallel, the output end comprises a diode D5 and a resistor R11, the anode of the diode D5 is connected between the resistor R8 and the resistor R10, the other end of the diode D5 is connected with the resistor R11, and the other end of the resistor R11 is an output end; a resistor R is connected in parallel between the resistor R and the resistor R, the other end of the resistor R is connected with the cathode of a diode D, the anode of the diode D is connected with a capacitor C, the other end of the capacitor C is connected with the base electrode of a triode V, the emitting electrode of the triode V is connected between the capacitor C and the resistor R, the collector electrode of the triode V is connected with the anode of the diode D, the cathode of the diode D is connected between the anode of the diode D and the capacitor C, the resistor R is connected in parallel between the cathode of the diode D and the resistor R, the other end of the resistor R is connected with the base electrode of the triode V, the emitting electrode of the triode V is connected with the resistor R, the other end of the resistor R is connected between the resistor R and the collector electrode of the triode V, the collector electrode of the, the other end of the resistor R12 is connected with a resistor R7, the other end of the resistor R7 is connected between the resistor R5 and the anode of the diode D7, the resistor R7 is further connected with the base of a triode V1, the collector of the triode V1 is connected between the cathode of the diode D7 and the resistor R8, the emitter of the triode V1 is connected with the resistor R13, the other end of the resistor R13 is connected between a capacitor C5 and the resistor R17, the resistor R14 is connected between the resistor R13 and the emitter of the triode V1, and the other end of the resistor R14 is connected between the resistor R8 and the resistor R10.
When the traction connecting plate is not needed, the spring and the telescopic rod can shake up and down along with the running of the tractor, so that the telescopic rod can wear due to long-time back and forth movement, the electromagnet is arranged on the extension plate, when a vehicle is not needed to be pulled, the electromagnet is electrified, the top plate which is made into a magnetic material can be adsorbed by the electromagnet, the back and forth shaking of the spring and the telescopic rod is reduced, and the service lives of the spring and the telescopic rod are prolonged;
the control circuit can enable the electromagnet to work more stably, and reduce the phenomenon that the electromagnet mistakenly adsorbs the top plate in the process of towing a vehicle when the electromagnet is in poor contact in the use process.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A trailer towing apparatus comprising a towing member provided at a rear portion of a towing vehicle, the towing member comprising: a lifting plate (1), a traction connecting plate (3), a locking device (2) and a base (15),
the bottom of the lifting plate (1) is provided with a base (15), the base (15) is used for being fixed at the tail part of the tractor,
the lifting plate (1) is vertically fixed on the upper surface of the base (15), the traction connecting plate (3) is arranged on the right side of the lifting plate (1) in a sliding mode, and the traction connecting plate (3) is fixed on the lifting plate (1) through a locking device (2);
and one end of the traction connecting plate (3) far away from the lifting plate (1) is used for drawing the vehicle.
2. A trailer towing apparatus according to claim 1, wherein a slideway (4) is provided on the side of the lifting plate (1) connected to the towing connecting plate (3), and a sliding plate (5) is provided on the side of the connecting plate close to the lifting plate (1), the sliding plate (5) reciprocating in the slideway (4).
3. A trailer towing arrangement as claimed in claim 1, wherein said locking means (2) comprises: a vertical plate (7), a plurality of limiting columns (8) and a clamping rod (9), wherein one side of the vertical plate (7) is provided with a plurality of limiting columns (8) at intervals,
a first limiting hole (10) which penetrates through the limiting column (8) is arranged on the circumferential outer wall of one end of the limiting column far away from the vertical plate (7),
the first limiting holes (10) of the limiting columns (8) are coaxially arranged, and the first limiting holes (10) are used for being inserted into the clamping rods (9) in a penetrating mode;
a limiting table is arranged at the top end of the clamping rod (9), and a first handle (6) is arranged at one end, far away from the clamping rod (9), of the limiting table;
a plurality of second limiting holes (13) are formed in the lifting plate (1) at intervals, and the limiting columns (8) penetrate through the sliding plate (5) from one side of the sliding plate (5) to the second limiting holes (13).
4. A trailer towing attachment in accordance with claim 3, characterised in that a second handle (11) is provided on the side of the riser (7) remote from the restraining post (8).
5. A trailer towing attachment in accordance with claim 1, wherein a towing bar (14) for connecting to a towed vehicle is provided on the side of the towing attachment (3) remote from the locking means (2), and a plurality of third limiting holes (12) for fixing to a towing vehicle are provided at intervals on the base (15).
6. A trailer towing mechanism as claimed in claim 1, wherein said towing connecting plates (3) are configured as a U-shaped structure, said towing connecting plates (3) are symmetrically disposed on both sides of said sliding plate (5), one end of said towing connecting plates (3) far from said sliding plate (5) is detachably connected with a towing rod (16) by a bolt (17), said towing connecting plates (3) are provided with through holes, said towing rod (16) penetrates through the through holes of two towing connecting plates (3), and said towing rod (16) is fixed on said towing connecting plates (3) by a bolt (17).
7. A trailer traction apparatus as claimed in claim 1, wherein an extension plate (18) is further connected to a side of the base (15) close to the pulled vehicle, a telescopic rod (19) is fixed on the upper surface of the extension plate (18), a spring (20) is sleeved on the circumferential outer wall of the telescopic rod (19), and a top plate (21) is connected to the top of the telescopic rod (19); the roof panel (21) is used for abutting against the lower part of a traction rod (16) of the pulled vehicle.
8. A trailer towing attachment in accordance with claim 7, wherein a control panel is provided in the extension panel (18), the control panel having an electromagnet attached thereto, the top panel (21) being provided with a magnetically attractive material, the control panel including a control circuit comprising: resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R12, R13, R14, R17, capacitors C1, C2, C3, C4, C5, diodes D1, D2, D4, D5, D6, D7 and triodes V1, V2 and V3,
one end of the resistor R1 is an input end, the other end of the resistor R1 is connected to anodes of a resistor R2 and a diode D1, a cathode of the diode D1 is connected to the capacitor C1, the other end of the capacitor C1 is connected to the resistor R3, the other end of the resistor R3 is connected to the resistor R5, the other end of the resistor R5 is connected to an anode of the diode D7, a cathode of the diode D7D is connected to the resistor R8, the other end of the resistor R8 is connected to the resistor R10, the other end of the resistor R10 is connected to the resistor R10, the other end of the resistor R10 is connected to the capacitor C10, the other end of the capacitor C10 is connected to an anode of the diode D10, and a cathode of the diode D10 is connected to one end of the resistor R36;
an output end is connected between the resistor R8 and the resistor R10 in parallel, the output end comprises a diode D5 and a resistor R11, the anode of the diode D5 is connected between the resistor R8 and the resistor R10, the other end of the diode D5 is connected with the resistor R11, and the other end of the resistor R11 is an output end;
a resistor R4 is connected in parallel between the resistor R2 and the resistor R6, the other end of the resistor R4 is connected with the cathode of a diode D4, the anode of the diode D4 is connected with a capacitor C2, the other end of the capacitor C2 is connected with the base of a triode V2, the emitter of the triode V2 is connected between the capacitor C1 and a resistor R3, the collector of the triode V2 is connected with the anode of a diode D2, and the cathode of the diode D2 is connected between the anode of a diode D6 and a capacitor C3;
a resistor R6 is connected in parallel between the cathode of the diode D4 and the resistor R4, the other end of the resistor R6 is connected with a resistor R9, the other end of the resistor R9 is connected with the base electrode of a triode V3, the emitter electrode of the triode V3 is connected with the resistor R11, the other end of the resistor R11 is connected between the resistor R3 and the resistor R5, the collector electrode of the triode V3 is connected between a capacitor C3 and a capacitor C4,
a resistor R12 is connected between the capacitor C4 and the capacitor C5, the other end of the resistor R12 is connected with a resistor R7, the other end of the resistor R7 is connected between a resistor R5 and the anode of the diode D7, the resistor R7 is also connected with the base of a triode V1, the collector of the triode V1 is connected between the cathode of the diode D7 and the resistor R8, the emitter of the triode V1 is connected with the resistor R13, the other end of the resistor R13 is connected between the capacitor C5 and the resistor R17,
a resistor R14 is connected between the resistor R13 and the emitter of the triode V1, and the other end of the resistor R14 is connected between the resistor R8 and the resistor R10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100019.9A CN111114220A (en) | 2020-02-18 | 2020-02-18 | Trailer traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100019.9A CN111114220A (en) | 2020-02-18 | 2020-02-18 | Trailer traction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111114220A true CN111114220A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010100019.9A Pending CN111114220A (en) | 2020-02-18 | 2020-02-18 | Trailer traction device |
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| CN (1) | CN111114220A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605374A (en) * | 2020-06-02 | 2020-09-01 | 开化柚夏汽车配件有限公司 | Trailer connector |
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| CN111605374B (en) * | 2020-06-02 | 2021-09-10 | 叶程军 | Trailer connector |
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