CN103273813A - Vehicle traction rod - Google Patents
Vehicle traction rod Download PDFInfo
- Publication number
- CN103273813A CN103273813A CN2013102146802A CN201310214680A CN103273813A CN 103273813 A CN103273813 A CN 103273813A CN 2013102146802 A CN2013102146802 A CN 2013102146802A CN 201310214680 A CN201310214680 A CN 201310214680A CN 103273813 A CN103273813 A CN 103273813A
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- expansion link
- cavity volume
- pin
- fixed link
- spring cavity
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Abstract
The invention relates to a vehicle traction rod which comprises a fixing rod, a first extensible rod and a second extensible rod. One end of the first extensible rod and one end of the fixing rod are in sleeved connection in an axially extensible manner, one end of the second extensible rod and the other end of the fixing rod are in sleeved connection in an axially extensible manner, an axial tension damping device is arranged between the first extensible rod and the fixing rod, an axial compression damping device is arranged between the second extensible rod and the fixing rod, and a hanging hook is arranged at the other end of each of the first extensible rod and the second extensible rod. In the process of traction, when slamming on the brake or abrupt acceleration occurs, due to the buffering effect of the axial tension damping device or the axial compression damping device, influences on a vehicle ahead can be greatly reduced, so that the advantage that conventional rigid traction rods can avoid tailgating is maintained, mental tension of a driver is relieved, the defect that inertia of a vehicle behind can cause great influences on the vehicle ahead when the conventional traction rods are used is overcome, and safety is improved.
Description
Technical field
The present invention relates to a kind of vehicle towed device, specifically is a kind of vehicle towed bar.
Background technology
When vehicle needs to move apart the scene after certain reason runs out of steam (as breaking down), under the trailer situation that is not having specialty, generally all be adopt a normal car in tow fault garage advance, therefore need to connect the draw gear of usefulness between two cars.Existing draw gear comprises two classes, one class is flexible trailing cable or traction belt, adopt flexible trailing cable or traction belt to draw, the control of chaufeur travel direction still need be arranged in the fault car, also need to note excessively closely to avoid with front truck constantly knocking into the back chaufeur spiritual need high-pressure, mental fatigue easily simultaneously, potential safety hazard is bigger, and is more convenient but trailing cable or traction belt carry; Another kind of is the draw bar that adopts rigidity, the draw bar two ends are provided with hook, when using draw bar to draw, the spacing of two cars can remain unchanged, the situation that need not worry can occur knocking into the back, but when sudden stop occurs or accelerate suddenly, owing to draw bar does not have pooling feature, the inertia of back car will cause bigger influence to front truck, has certain potential safety hazard equally.
Summary of the invention
The objective of the invention is to provides a kind of vehicle towed bar for overcoming the deficiencies in the prior art, uses this vehicle towed bar can reduce nervous psychology, the raising safety of chaufeur.
For achieving the above object, the invention discloses a kind of vehicle towed bar, it is characterized in that: described vehicle towed bar comprises fixed link, first expansion link and second expansion link, one end of described first expansion link and fixed link one end be telescopic connecting together axially, one end of described second expansion link and the other end of fixed link be telescopic connecting together axially, be provided with the axial tension damping arrangement between described first expansion link and the fixed link, be provided with the axial compression damping arrangement between described second expansion link and the fixed link, the other end of described first expansion link and described second expansion link is provided with hook.
Compared with prior art, the invention has the beneficial effects as follows: because described vehicle towed bar comprises fixed link, first expansion link and second expansion link, one end of described first expansion link and fixed link one end be telescopic connecting together axially, one end of described second expansion link and the other end of fixed link be telescopic connecting together axially, be provided with the axial tension damping arrangement between described first expansion link and the fixed link, be provided with the axial compression damping arrangement between described second expansion link and the fixed link, in distraction procedure, if sudden stop or unexpected situation about accelerating, because the buffer action of axial tension damping arrangement or axial compression damping arrangement, with the influence that greatly reduces front truck, the advantage that had both kept the conventional rigid draw bar can not occur knocking into the back, reduce the nervous psychology of chaufeur, overcome the defective that the inertia of car behind the conventional rigid draw bar will affect greatly front truck again, improved safety.
As the further setting of the present invention, the coupling end of described first expansion link is provided with the first spring cavity volume, be provided with the first compression spring in the described first spring cavity volume, the both sides of the described first spring cavity volume symmetry are provided with axial first long slot bore, the coupling end of described first expansion link is inserted in the end of fixed link, the end of described fixed link is provided with a pair of first pin-and-hole, be equipped with first bearing pin in the described pin-and-hole, described first bearing pin passes first long slot bore simultaneously and is in first end that compresses the close pull-out direction of spring and constitutes described axial tension damping arrangement; The coupling end of described second expansion link is provided with the second spring cavity volume, be provided with the second compression spring in the described second spring cavity volume, the both sides of the described second spring cavity volume symmetry are provided with axial second long slot bore, the coupling end of described second expansion link is inserted in the other end of fixed link, the end of described fixed link is provided with a pair of second pin-and-hole, be equipped with second bearing pin in described second pin-and-hole, the end that described bearing pin passes second long slot bore simultaneously and is in the second compression springs urges direction constitutes described axial compression damping arrangement.The axial tension damping arrangement of aforesaid way is compared other modes (as the hydraulic damping device) structure with the axial compression damping arrangement simpler, with low cost, is easy to promote.
As another further setting of the present invention, described fixed link two ends are respectively equipped with the first spring cavity volume and the second spring cavity volume, be provided with the first compression spring in the described first spring cavity volume, the both sides of the described first spring cavity volume symmetry are provided with axial first long slot bore, the End play cooperation that described fixed link is provided with the first spring cavity volume is inserted in the end of described first expansion link, the end of described first expansion link is provided with a pair of first pin-and-hole, be equipped with first bearing pin in the described pin-and-hole, described first bearing pin passes first long slot bore simultaneously and is in the first compression spring and constitutes described axial tension damping arrangement near the opposite end of pull-out direction; Be provided with the second compression spring in the described second spring cavity volume, the both sides of the described second spring cavity volume symmetry are provided with axial second long slot bore, the End play cooperation that described fixed link is provided with the second spring cavity volume is inserted in the end of described second expansion link, the end of described second expansion link is provided with a pair of second pin-and-hole, be equipped with second bearing pin in the described pin-and-hole, described second bearing pin passes second long slot bore simultaneously and is in the second compression spring and constitutes described axial compression damping arrangement near the opposite end of press direction.It is simpler, with low cost that the axial tension damping arrangement of aforesaid way and axial compression damping arrangement can reach structure equally, the purpose that is easy to promote.
Further arrange as of the present invention, described fixed link is formed by two sections, removably connects between the two ends again.Fixed link adopts by two sections forms of forming, between used life, can not be divided into two parts, is convenient for carrying and deposits.
Further arrange as of the present invention, described hook is the C font for lateral opening, opening part is provided with snap close, described snap close comprises a column lateral pin, one end of described C shape hook is provided with the guide pipe of one section endoporus and described lateral pin cross section free-running fit, described lateral pin one end is provided with the pit that matches with C shape hook the other end, being arranged with behind the locking spring that the compression spring constitutes the other end on the described lateral pin passes guide pipe and is arranged in the guide pipe, the described end of pit that is provided with is towards the other end of C shape hook, and the other end of described lateral pin is provided with drag hook.
By above-mentioned setting, draw bar can hang on the car of front and back in use easily, and simple in structure, and hook is reliable.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing 1 is the specific embodiment of the invention 1 schematic appearance;
Accompanying drawing 2 is the specific embodiment of the invention 1 structure cutaway view;
Accompanying drawing 3 is the specific embodiment of the invention 1 decomposition texture scheme drawing;
Accompanying drawing 4 is the specific embodiment of the invention 2 schematic appearance;
Accompanying drawing 5 is the specific embodiment of the invention 2 structure cutaway views;
Accompanying drawing 6 is linked up with the specific embodiment structural representation for the present invention.
The specific embodiment
Vehicle towed bar comprises fixed link 1, first expansion link 2 and second expansion link 3, and fixed link 1, first expansion link 2 and second expansion link 3 are made by rigid material.One end of described first expansion link 2 and fixed link 1 one ends are telescopic connecting together axially, one end of described second expansion link 3 and the other end of fixed link 1 be telescopic connecting together axially, be provided with the axial tension damping arrangement between described first expansion link 2 and the fixed link 1, be provided with the axial compression damping arrangement between described second expansion link 3 and the fixed link 1, the other end of described first expansion link 2 and described second expansion link 3 is equipped with hook.
Specific embodiment 1: as Fig. 1, shown in 2, in this specific embodiment, the coupling end of described first expansion link 2 is provided with the first spring cavity volume, be provided with the first compression spring 4 in the described first spring cavity volume, the both sides of the described first spring cavity volume symmetry are provided with axial first long slot bore 201, the drift of the length of the first spring cavity volume and the first compression spring 4 is basic identical or summary is long a bit gets final product, more same or slightly shorter the getting final product of compression stroke of first long slot bore 201 and the first compression spring 4, prevent that the first compression spring 4 from damaging in compression process, the coupling end of described first expansion link 2 is inserted in the end of fixed link 1, the end of described fixed link 1 is provided with a pair of first pin-and-hole 101, be equipped with first bearing pin 5 in described first pin-and-hole 101, first bearing pin, 5 diameters and axial first long slot bore, 201 free-running fits, described first bearing pin 5 are passed first long slot bore 201 simultaneously and are in first end that compresses spring 4 close pull-out directions and constitute described axial tension damping arrangement; The coupling end of described second expansion link 3 is provided with the second spring cavity volume, be provided with the second compression spring 6 in the described second spring cavity volume, the both sides of the described second spring cavity volume symmetry are provided with axial second long slot bore 301, same, the drift of the length of the second spring cavity volume and the second compression spring 6 is basic identical or summary is long a bit gets final product, more same or slightly shorter the getting final product of compression stroke of second long slot bore 301 and the second compression spring 6, the coupling end of described second expansion link 3 is inserted in the other end of fixed link 1, the end of described fixed link 1 is provided with a pair of second pin-and-hole 102, be equipped with second bearing pin 7 in described second pin-and-hole 102, described second bearing pin 7 passes second long slot bore 301 simultaneously and is in second end that compresses spring 6 press direction and constitutes described axial compression damping arrangement.As shown in Figure 6, the hook 8 at two ends is the C font for lateral opening, opening part is provided with snap close, described snap close comprises a column lateral pin 9, one end of described C shape hook 8 is provided with the guide pipe 801 of one section endoporus and described lateral pin 9 cross section free-running fits, described lateral pin 9 one ends are provided with C shape and link up with the pit 902 that 8 the other end match, the locking spring 10 back other ends that are arranged with compression spring formation on the described lateral pin 9 pass guide pipe 801 and are arranged in the guide pipe 801, the described end of pit 802 that is provided with is towards the other end of C shape hook 8, and the other end of described lateral pin 9 is provided with drag hook 901 and is easy to open hook 8.In order to make this vehicle towed bar not more convenient to carry and deposit between used life, described fixed link 1 can be taked the mode formed by two sections, removably connects between the two ends, such as being threaded, can being divided into two-section so at ordinary times and depositing.
Specific embodiment 2: as Fig. 3, shown in 4, described fixed link 1, connection structure between first expansion link 2 and second expansion link 3 also has other modes, in this specific embodiment, described fixed link 1 two ends are respectively equipped with the first spring cavity volume and the second spring cavity volume, be provided with the first compression spring 4 in the described first spring cavity volume, the both sides of the described first spring cavity volume symmetry are provided with axial first long slot bore 201, the End play cooperation that described fixed link 1 is provided with the first spring cavity volume is inserted in the end of described first expansion link 2, the end of described first expansion link 2 is provided with a pair of first pin-and-hole 101, be equipped with first bearing pin 5 in the described pin-and-hole, described first bearing pin 5 passes first long slot bore 201 simultaneously and is in the first compression spring 4 and constitutes described axial tension damping arrangement near the opposite end of pull-out direction; Be provided with the second compression spring 6 in the described second spring cavity volume, the both sides of the described second spring cavity volume symmetry are provided with axial second long slot bore 301, the End play cooperation that described fixed link 1 is provided with the second spring cavity volume is inserted in the end of described second expansion link 3, the end of described second expansion link 3 is provided with a pair of second pin-and-hole 102, be equipped with second bearing pin 7 in described second pin-and-hole 102, described second bearing pin 7 passes second long slot bore 301 simultaneously and is in the second compression spring 6 and constitutes described axial compression damping arrangement near the opposite end of press direction.
Claims (5)
1. vehicle towed bar, it is characterized in that: described vehicle towed bar comprises fixed link, first expansion link and second expansion link, one end of described first expansion link and fixed link one end be telescopic connecting together axially, one end of described second expansion link and the other end of fixed link be telescopic connecting together axially, be provided with the axial tension damping arrangement between described first expansion link and the fixed link, be provided with the axial compression damping arrangement between described second expansion link and the fixed link, the other end of described first expansion link and described second expansion link is equipped with hook.
2. vehicle towed bar according to claim 1, it is characterized in that: the coupling end of described first expansion link is provided with the first spring cavity volume, be provided with the first compression spring in the described first spring cavity volume, the both sides of the described first spring cavity volume symmetry are provided with axial first long slot bore, the coupling end of described first expansion link is inserted in the end of fixed link, the end of described fixed link is provided with a pair of first pin-and-hole, be equipped with first bearing pin in the described pin-and-hole, described first bearing pin passes first long slot bore simultaneously and is in first end that compresses the close pull-out direction of spring and constitutes described axial tension damping arrangement; The coupling end of described second expansion link is provided with the second spring cavity volume, be provided with the second compression spring in the described second spring cavity volume, the both sides of the described second spring cavity volume symmetry are provided with axial second long slot bore, the coupling end of described second expansion link is inserted in the other end of fixed link, the end of described fixed link is provided with a pair of second pin-and-hole, be equipped with second bearing pin in described second pin-and-hole, the end that described bearing pin passes second long slot bore simultaneously and is in the second compression springs urges direction constitutes described axial compression damping arrangement.
3. vehicle towed bar according to claim 1, it is characterized in that: described fixed link two ends are respectively equipped with the first spring cavity volume and the second spring cavity volume, be provided with the first compression spring in the described first spring cavity volume, the both sides of the described first spring cavity volume symmetry are provided with axial first long slot bore, the End play cooperation that described fixed link is provided with the first spring cavity volume is inserted in the end of described first expansion link, the end of described first expansion link is provided with a pair of first pin-and-hole, be equipped with first bearing pin in the described pin-and-hole, described first bearing pin passes first long slot bore simultaneously and is in the first compression spring and constitutes described axial tension damping arrangement near the opposite end of pull-out direction; Be provided with the second compression spring in the described second spring cavity volume, the both sides of the described second spring cavity volume symmetry are provided with axial second long slot bore, the End play cooperation that described fixed link is provided with the second spring cavity volume is inserted in the end of described second expansion link, the end of described second expansion link is provided with a pair of second pin-and-hole, be equipped with second bearing pin in the described pin-and-hole, described second bearing pin passes second long slot bore simultaneously and is in the second compression spring and constitutes described axial compression damping arrangement near the opposite end of press direction.
4. vehicle towed bar according to claim 1 and 2, it is characterized in that: described fixed link is formed by two sections, removably connects between the two ends.
5. vehicle towed bar according to claim 1, it is characterized in that: described hook is the C font for lateral opening, opening part is provided with snap close, described snap close comprises a column lateral pin, one end of described C shape hook is provided with the guide pipe of one section endoporus and described lateral pin cross section free-running fit, described lateral pin one end is provided with the pit that matches with C shape hook the other end, being arranged with behind the locking spring that the compression spring constitutes the other end on the described lateral pin passes guide pipe and is arranged in the guide pipe, the described end of pit that is provided with is towards the other end of C shape hook, and the other end of described lateral pin is provided with drag hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102146802A CN103273813A (en) | 2013-05-31 | 2013-05-31 | Vehicle traction rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102146802A CN103273813A (en) | 2013-05-31 | 2013-05-31 | Vehicle traction rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103273813A true CN103273813A (en) | 2013-09-04 |
Family
ID=49056478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102146802A Pending CN103273813A (en) | 2013-05-31 | 2013-05-31 | Vehicle traction rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103273813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909950A (en) * | 2014-04-02 | 2014-07-09 | 淮南矿业(集团)有限责任公司 | Telescopic connecting bar for trailers |
| CN114248816A (en) * | 2020-09-22 | 2022-03-29 | 湖南中车智行科技有限公司 | Rescue car traction lever device with adjustable buffer strength |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8325582D0 (en) * | 1983-09-23 | 1983-10-26 | Lai Ching Haw | Towing bar |
| US4593925A (en) * | 1984-09-27 | 1986-06-10 | Laie Ching H | Safety hauling coupler |
| US4729576A (en) * | 1986-03-20 | 1988-03-08 | Roach Keyton W | Device for tandem movement of IV-pole and gurney |
| CN2274584Y (en) * | 1996-08-08 | 1998-02-18 | 何玉敏 | Buffered vehicle tractor |
| DE202004020548U1 (en) * | 2004-03-30 | 2005-08-04 | Herrmann, Hans | Towing unit to be inserted between two vehicles, comprising quick joining hook |
| CN2923395Y (en) * | 2006-06-26 | 2007-07-18 | 上海齐迈五金有限公司 | Folding automotive traction device |
| CN202038128U (en) * | 2011-04-12 | 2011-11-16 | 中国人民解放军总装备部军械技术研究所 | Two-way buffering traction device |
-
2013
- 2013-05-31 CN CN2013102146802A patent/CN103273813A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8325582D0 (en) * | 1983-09-23 | 1983-10-26 | Lai Ching Haw | Towing bar |
| US4593925A (en) * | 1984-09-27 | 1986-06-10 | Laie Ching H | Safety hauling coupler |
| US4729576A (en) * | 1986-03-20 | 1988-03-08 | Roach Keyton W | Device for tandem movement of IV-pole and gurney |
| CN2274584Y (en) * | 1996-08-08 | 1998-02-18 | 何玉敏 | Buffered vehicle tractor |
| DE202004020548U1 (en) * | 2004-03-30 | 2005-08-04 | Herrmann, Hans | Towing unit to be inserted between two vehicles, comprising quick joining hook |
| CN2923395Y (en) * | 2006-06-26 | 2007-07-18 | 上海齐迈五金有限公司 | Folding automotive traction device |
| CN202038128U (en) * | 2011-04-12 | 2011-11-16 | 中国人民解放军总装备部军械技术研究所 | Two-way buffering traction device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909950A (en) * | 2014-04-02 | 2014-07-09 | 淮南矿业(集团)有限责任公司 | Telescopic connecting bar for trailers |
| CN114248816A (en) * | 2020-09-22 | 2022-03-29 | 湖南中车智行科技有限公司 | Rescue car traction lever device with adjustable buffer strength |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |