CN113335398A - Adjustable saddle type traction connector and trailer thereof - Google Patents
Adjustable saddle type traction connector and trailer thereof Download PDFInfo
- Publication number
- CN113335398A CN113335398A CN202110902360.0A CN202110902360A CN113335398A CN 113335398 A CN113335398 A CN 113335398A CN 202110902360 A CN202110902360 A CN 202110902360A CN 113335398 A CN113335398 A CN 113335398A
- Authority
- CN
- China
- Prior art keywords
- connecting block
- pressing
- traction
- air
- locking device
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/08—Fifth wheel traction couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/08—Fifth wheel traction couplings
- B62D53/0807—Fifth wheel traction couplings adjustable coupling saddles mounted on sub-frames; Mounting plates therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses an adjustable saddle type traction connector and a trailer thereof, belonging to the technical field of trailers and comprising: the traction seat is arranged at the head of the semitrailer and is a support used for connecting a vehicle body, one side of the traction seat is an opening used for clamping and mounting a traction pin, the traction seat is rotatably arranged on the surface of the connecting block, when the pressing device is inflated, the locking device is in a state of not pressing the connecting block, and the locking device is in a state of not locking the connecting block; when the locking device is inflated, the pressing device is cut off, the locking device is in a state of locking the connecting block, and the pressing device is in a state of pressing the connecting block. When the device is used for connecting the vehicle body and the vehicle head, errors are allowed to be generated, and after the errors are generated, the position of the traction seat is only required to be adjusted, so that the connection time of the vehicle body and the vehicle head is greatly reduced, and the installation efficiency is remarkably improved; the device can change the traction support position, enhance the support strength and prolong the service life.
Description
Technical Field
The invention relates to an adjustable saddle type traction connector and a trailer thereof, belonging to the technical field of trailers.
Background
The semitrailer is connected with the traction seat through the traction pin, the traction seat is installed in semitrailer locomotive department, the traction pin is installed in automobile body department, when the automobile body is connected with the locomotive, combine figure 1, the automobile body is fixed, the locomotive backs a car backward, the traction pin card is gone into and is realized the installation in the traction seat, the in-process of backing a car, the driver field of vision is poor, hardly aim at, need extravagant many times, and pull the in-process, bear the power of pulling through the round pin axle of traction seat inside, the round pin axle is easily buckled, warp, influence life.
Disclosure of Invention
In view of the problems of the prior art, the invention provides an adjustable saddle type traction connector and a trailer thereof, which save installation time and enhance tensile strength.
In order to achieve the purpose, the invention adopts the following technical scheme that: the traction seat is arranged at the head of the semitrailer, an opening for clamping and mounting a traction pin is formed in one side of the traction seat, and the traction seat is rotatably arranged on the surface of the connecting block; the adjusting part comprises a support, a pressing device and a locking device, the pressing device and the locking device are driven by air, the connecting block is slidably arranged in the support, the pressing device is of a structure for pressing the connecting block to the middle of the vehicle head and can generate a force for resisting the left-right sliding to the connecting block, and the locking device can lock the connecting block in the middle of the support; and the control valve is arranged on the gas conveying pipe connected with the pressing device and the locking device and the gas tank, and controls the gas tank to be communicated with the pressing device or the locking device for inflation.
When the pressing device is inflated, the locking device is in a non-pressing connection block state, and the locking device is in a non-locking connection block state; when the locking device is inflated, the pressing device is cut off, the locking device is in a state of locking the connecting block, and the pressing device is in a state of pressing the connecting block.
Preferably, the disc is installed in the rotation of the middle part of connecting block, and the traction seat is installed on the disc, the gear is installed in the inside rotation of connecting block, gear and disc fixed connection, one side meshing of gear is connected with the axle sleeve that can the horizontal slip, be equipped with on the lateral wall of axle sleeve with gear engagement's tooth, one end open-ended hole has been seted up to the inside of axle sleeve, the inside fixed mounting of connecting block has interior axle, the one end of interior axle is inserted in the hole, be equipped with the through-hole with three intercommunications of gas-supply pipe in the interior axle, three gas-supply pipe are connected with the gas pitcher, the other end of axle sleeve is connected with elastomer one, and the one end that the axle sleeve was kept away from to elastomer one is connected on the inner wall of connecting block.
Preferably, the pressing device comprises a pressing plate arranged inside the support in a sliding mode, one end of the pressing plate is connected to the support through a third elastic body, an air rod is installed in the support, an inner cavity is formed in the air rod, an air bag is arranged in the inner cavity, a pulling plate is arranged on one side of the air bag in a pressing mode, the pulling plate can slide left and right in the inner cavity, and one end of the pulling plate extends out of the air rod and is connected to the pressing plate.
Preferably, locking device includes the eccentric wheel and is used for driving the drive arrangement of eccentric wheel, the eccentric wheel can support tightly on the lateral wall of connecting block, drive arrangement is including pressing the jar, press the jar to install on the inner wall of support, the internally mounted who presses the jar has telescopic output rod, the one end of output rod articulates there is the connecting rod, the one end that the output rod was kept away from to the connecting rod articulates on the eccentric wheel.
Preferably, the inside of pressing the jar is equipped with the cavity, be equipped with the inner membrance in the cavity, the other end of output rod is connected on the inner membrance, the last elastomer two that has cup jointed of output rod, the one end of elastomer two is connected on the inner membrance, and the other end is connected on the inner wall of pressing the jar.
Preferably, the inner cavity of the pressure tank and the air bag are respectively connected with the control valve through a first air conveying pipe and a second air conveying pipe.
Preferably, the control valve includes the casing, is equipped with into the trachea on the casing, the inside of casing is equipped with rotatable rotor, be equipped with connecting pipe one and connecting pipe two in the rotor, when the rotor rotates to the primary importance, connecting pipe one will go into trachea and first intercommunication of gas-supply pipe, when the rotor rotates to the second place, connecting pipe two will go into trachea and two intercommunications of gas-supply pipe.
A trailer comprising the above-described towing connector.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the traction seat is movably arranged at the vehicle body, so that an error is allowed to be generated when the vehicle body and the vehicle head are connected, and only the position of the traction seat is required to be adjusted after the error is generated, so that the connection time of the vehicle body and the vehicle head is greatly reduced, and the installation efficiency is remarkably improved.
According to the invention, the traction seat is arranged on the disc, the disc is rotatably arranged in the middle of the connecting block, and the angle of the traction seat is pneumatically controlled, so that the traction support position can be changed, the support strength is enhanced, and the service life is prolonged by adopting the device.
Drawings
Fig. 1 is a connection diagram of a conventional trailer head and a trailer body.
Fig. 2 is a drawing of the kingpin and fifth wheel assembly of the present invention.
Fig. 3 is a structural view of the stent of the present invention.
Fig. 4 is an internal sectional view of the connector block of the present invention.
Fig. 5 is an internal structural view of the stent of the present invention.
FIG. 6 is an enlarged view of the invention at A in FIG. 5.
Fig. 7 is a connection state diagram of the connecting block and two eccentric wheels.
Fig. 8 is an internal view of the control valve of the present invention.
In the figure: 1. the device comprises a support, 2, a disc, 3, a dust guard, 4, a connecting block, 5, a gear, 6, an inner shaft, 7, a shaft sleeve, 8, a first air cavity, 9, a first elastic body, 10, a first connecting pipe, 11, a second connecting pipe, 12, an eccentric wheel, 13, a connecting rod, 14, a second elastic body, 15, an output rod, 16, a pressing tank, 17, an inner film, 18, an air rod, 19, an air bag, 20, a third elastic body, 21, a first air pipe, 22, a second air pipe, 23, a abutting plate, 24, a third air pipe, 25, a shell, 26, a rotating body, 27, a pulling plate, 28, a traction seat, 29 and a traction pin.
Detailed Description
The invention is illustrated by the following specific examples, which are not intended to be limiting.
Referring to fig. 1-4, an adjustable fifth wheel hitch and trailer thereof, the trailer including an adjustable fifth wheel hitch, wherein the adjustable fifth wheel hitch comprises: the traction seat 28 is arranged at the vehicle head, the traction seat 28 is rotatably arranged on the surface of the connecting block 4, the disc 2 is rotatably arranged in the middle of the connecting block 4, the traction seat 28 is arranged on the disc 2, the traction seat 28 is an opening at one side, the opening can be used for clamping and installing the traction pin 29, the traction seat 28 can change the traction support position, when the pneumatic valve is opened, the opening faces the direction of the vehicle body of the trailer, the pin shaft in the traction seat 28 can limit the position of the traction pin 29, in the process that the vehicle body is dragged by the vehicle head to move forwards, the support position of the traction seat 28 is a pin shaft, and the common connection mode of the common trailer is pin shaft traction support, so that the support effect of the support mode is poor, and the pin shaft is easy to bend; when the pneumatic valve is closed, the traction seat 28 rotates, the opening faces the direction far away from the trailer body, in the process that the trailer body of the locomotive tractor advances, the supporting position of the traction seat 28 is the side wall far away from the opening, the side wall of the traction seat 28 is thick and is not easy to bend, the gear 5 is rotatably installed inside the connecting block 4, the gear 5 is connected with the disc 2, one side of the gear 5 is in meshing connection with the shaft sleeve 7 capable of sliding left and right, the side wall of the shaft sleeve 7 is provided with teeth meshed with the gear 5, the shaft sleeve 7 slides left and right to drive the gear 5 to rotate, the gear 5 rotates to drive the traction seat 28 to rotate through the disc 2, the disc 2 rotates 180 degrees just by the moving distance of the shaft sleeve 7, the inside of the shaft sleeve 7 is provided with an inner hole with an opening at one end, the inside of the connecting block 4 is fixedly provided with the inner shaft 6, one end of the inner shaft 6 is inserted into the inner hole, the inner shaft 6 is internally provided with a through hole communicated with a third gas conveying pipe 24, the third gas conveying pipe 24 is connected with a gas tank, the other end of the shaft sleeve 7 is connected with a first elastic body 9, one end, far away from the shaft sleeve 7, of the first elastic body 9 is connected to the inner wall of the connecting block 4, the first elastic body 9 can push the shaft sleeve 7 to move, and the driving gear 5 is driven to rotate in the moving process.
With reference to fig. 3 to 7, the adjusting portion includes a support 1, and a pressing device and a locking device that are driven by air, the pressing device is provided with two pressing devices, the two pressing devices are symmetrically provided on two sides of the connecting block 4, each pressing device includes a tightening plate 23 slidably disposed inside the support 1, one end of the tightening plate 23 is connected to the support 1 through a third elastic body 20, an air rod 18 is installed inside the support 1, an inner cavity is provided inside the air rod 18, an air bag 19 is provided in the inner cavity, a pulling plate 27 is provided on one side of the air bag 19 in a tightening manner, the pulling plate 27 can slide left and right in the inner cavity, one end of the pulling plate 27 extends out of the outside of the air rod 18 and is connected to the tightening plate 23, after air is injected into the air bag 19, the volume of the air bag 19 is increased, and the tightening plate 23 can be driven by the pulling plate 27 to move toward a direction away from the connecting block 4.
The locking device is two, and the symmetry sets up in the both sides of connecting block 4, and every locking device includes eccentric wheel 12 and the drive arrangement who is used for driving eccentric wheel 12, eccentric wheel 12 can support tightly on the lateral wall of connecting block 4, drive arrangement is including pressing jar 16, press jar 16 to install on the inner wall of support 1, the internally mounted of pressing jar 16 has output lever 15 that has the function of stretching out, output lever 15's one end articulates there is connecting rod 13, connecting rod 13 keeps away from output lever 15's one end and articulates on eccentric wheel 12, and output lever 15 can be flexible in the inside business turn over of pressing jar 16, and accessible connecting rod 13 drives eccentric wheel 12 and rotates, and when eccentric wheel 12 is non-locking state, combines figure 7, and the distance between eccentric wheel 12 and the connecting block 4 is a, and two eccentric wheels 12 arrange respectively in the both sides of connecting block 4, promptly: the space of the connecting block 4 moving left and right is 2a, a cavity is arranged in the pressure tank 16, an inner membrane 17 is arranged in the cavity, the other end of the output rod 15 is connected to the inner membrane 17, the second elastic body 14 is sleeved outside the output rod 15, the first elastic body 9, the second elastic body 14 and the third elastic body 20 are all high-strength springs, one end of the second elastic body 14 is connected with the inner membrane 17, the other end is connected with the inner wall of the pressure tank 16, the inner cavity of the pressure tank 16 and the air bag 19 are respectively connected with the control valve through a first air delivery pipe 21 and a second air delivery pipe 22, connecting block 4 slidable installs inside support 1, closing device is for compressing tightly connecting block 4 to the structure in the middle part of locomotive, can produce the power of resisting horizontal slip to connecting block 4, and locking device can lock connecting block 4 in support 1 middle part, makes connecting block 4 arrange the deviation can not appear in support 1's middle part.
When the pressing device is in an air-out state, the pressing device is in a pressing state, and when the pressing device is in an air-in state, the pressing device is in a contraction state; when the locking device is in an unlocked state, the locking device is in a locked state when the locking device is inflated.
Combine figure 8, the control valve is the media that closing device, locking device and gas pitcher are connected, and the control valve control gas pitcher only rather than arbitrary being connected, the control valve includes casing 25, is equipped with into the trachea on the casing 25, the inside of casing 25 is equipped with rotor 26, rotor 26 accessible electric machine control, be equipped with connecting pipe 10 and connecting pipe two 11 in the rotor 26, connecting pipe 10 is used for connecting into trachea and gas-supply pipe 21, connecting pipe two 11 are used for connecting into trachea and gas-supply pipe two 22, and after rotor 26 rotated certain angle, can realize into the trachea only can communicate with gas-supply pipe 21 or gas-supply pipe two 22.
During the use, install support 1 in the intermediate position of locomotive, when hanging the carriage, the valve of three 24 of control gas-supply pipe is opened, the inside atmospheric pressure of air cavity 8 increases, axle sleeve 7 is exerted pressure and is compressed elastomer 9, axle sleeve 7 drives gear 5 and rotates, gear 5 drives the traction seat 28 through disc 2 and rotates, rotate to the position that the opening aimed at the place ahead automobile body, the locomotive backs a car afterwards, traction pin 29 card is gone into the inside of traction seat 28 and can be accomplished the trailer and hang, hang the completion back, the valve of three 24 of control gas-supply pipe is closed, under the thrust of elastomer 9, disc 2 drives traction seat 28 and rotates 180 degrees, the support position of traction seat 28 is for keeping away from opening part one end lateral wall, be difficult for buckling.
Before the locomotive backs a car, the control valve controls the first air pipe 21 to cut off air, the second air pipe 22 is inflated, the second air pipe 22 injects air into the air bag 19, the air bag 19 is enlarged, the third elastic body 20 is compressed, the abutting plates 23 on the two sides are outwards opened to leave a space, the first air pipe 21 cuts off air, the second elastic body 14 drives the output rod 15 to pull the connecting rod 13, the connecting rod 13 drives the eccentric wheel 12 to rotate, and the space is reserved between the eccentric wheel 12 and the connecting block 4, so that the connecting block 4 can be freely moved between the two eccentric wheels 12, in combination with the drawing 2, a user moves the connecting block 4 to enable the opening of the traction seat 28 to be aligned with the traction pin 29, the traction seat 28 is installed on the connecting block 4, namely the connecting block 4 is moved to be equal to the traction seat 28, and the vehicle body can be moved to finish suspension.
After the suspension is completed, the control valve controls the first air pipe 21 to inflate again, the second air pipe 22 is cut off, the third elastic body 20 compresses the abutting plate 23 again to push the connecting block 4 to the middle part of the support 1, the output rod 15 moves towards the connecting block 4 through the connecting rod 13 to drive the eccentric wheel 12 to rotate and compress the connecting block 4, and therefore the centering and locking work of the connecting block 4 is completed.
In conclusion, the device can realize the adjustment of the installation position by moving the connecting block 4, saves the tedious procedure of readjusting the vehicle head, and saves the operation time by automatically centering after the installation is finished.
Finally, it should be noted that the above embodiments are only used for illustrating and not limiting the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the present invention without departing from the spirit and scope of the present invention, and all modifications or partial substitutions should be covered by the scope of the claims of the present invention.
Claims (8)
1. An adjustable saddle traction coupling comprising:
traction seat (28), traction seat (28) are installed in the locomotive department of semitrailer, the opening that can be used to joint installation towing pin (29), its characterized in that are used to one side of traction seat (28): the traction seat (28) is rotatably arranged on the surface of the connecting block (4);
the adjusting part comprises a support (1), a pressing device and a locking device, wherein the pressing device and the locking device are driven by air, the connecting block (4) is slidably arranged in the support (1), the pressing device is of a structure for pressing the connecting block (4) to the middle of a vehicle head, the pressing device can generate a force for resisting left and right sliding on the connecting block (4), and the locking device can lock the connecting block (4) in the middle of the support (1);
the control valve is arranged on a gas pipe connected with the gas tank by the pressing device and the locking device, and controls the gas tank to be communicated with the pressing device or the locking device for inflation;
when the pressing device is inflated, the locking device is in a non-pressing connection block (4) state, and the locking device is in a non-locking connection block (4) state; when the locking device is inflated, the pressing device is in an air-off state, the locking device is in a state of locking the connecting block (4), and the pressing device is in a state of pressing the connecting block (4).
2. The adjustable saddle type traction connector according to claim 1, wherein a disc (2) is rotatably mounted in the middle of the connecting block (4), the traction seat (28) is mounted on the disc (2), a gear (5) is rotatably mounted in the connecting block (4), the gear (5) is fixedly connected with the disc (2), one side of the gear (5) is connected with a shaft sleeve (7) capable of sliding left and right in a meshed manner, teeth meshed with the gear (5) are arranged on the side wall of the shaft sleeve (7), an inner hole with one open end is formed in the shaft sleeve (7), an inner shaft (6) is fixedly mounted in the connecting block (4), one end of the inner shaft (6) is inserted into the inner hole, a through hole communicated with a third gas conveying pipe (24) is formed in the inner shaft (6), and the third gas conveying pipe (24) is connected with a gas tank, the other end of the shaft sleeve (7) is connected with a first elastic body (9), and one end, far away from the shaft sleeve (7), of the first elastic body (9) is connected to the inner wall of the connecting block (4).
3. The adjustable saddle type traction connector according to claim 1, wherein the pressing device comprises a pressing plate (23) which is slidably arranged inside the bracket (1), one end of the pressing plate (23) is connected to the bracket (1) through an elastic body III (20), an air rod (18) is installed inside the bracket (1), an inner cavity is formed inside the air rod (18), an air bag (19) is arranged in the inner cavity, a pulling plate (27) is arranged on one side of the air bag (19) in a pressing mode, the pulling plate (27) can slide left and right in the inner cavity, and one end of the pulling plate (27) extends out of the air rod (18) and is connected to the pressing plate (23).
4. An adjustable saddle traction coupling according to claim 1, wherein the locking means comprises an eccentric (12) and a driving means for driving the eccentric (12), the eccentric (12) being adapted to abut against a side wall of the connecting block (4), the driving means comprising a pressure tank (16), the pressure tank (16) being mounted on an inner wall of the frame (1), a telescopic output rod (15) being mounted inside the pressure tank (16), one end of the output rod (15) being hinged to a connecting rod (13), and one end of the connecting rod (13) remote from the output rod (15) being hinged to the eccentric (12).
5. An adjustable saddle traction coupling according to claim 4, wherein the interior of the compression pot (16) is provided with a cavity, an inner membrane (17) is arranged in the cavity, the other end of the output rod (15) is connected to the inner membrane (17), the output rod (15) is sleeved with the second elastic body (14), one end of the second elastic body (14) is connected to the inner membrane (17), and the other end of the second elastic body is connected to the inner wall of the compression pot (16).
6. An adjustable saddle traction coupling according to claim 5, wherein the inner chamber of the pressure tank (16) and the air bag (19) are connected to the control valve via a first air inlet conduit (21) and a second air inlet conduit (22), respectively.
7. An adjustable saddle traction coupling according to claim 6, wherein the control valve comprises a housing (25), an air inlet pipe is provided on the housing (25), a rotatable rotor (26) is provided inside the housing (25), a first connection pipe (10) and a second connection pipe (11) are provided inside the rotor (26), the first connection pipe (10) connects the air inlet pipe with the first air delivery pipe (21) when the rotor (26) rotates to a first position, and the second connection pipe (11) connects the air inlet pipe with the second air delivery pipe (22) when the rotor (26) rotates to a second position.
8. Trailer, characterized in comprising a towing connector according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110902360.0A CN113335398B (en) | 2021-08-06 | 2021-08-06 | Adjustable saddle type traction connector and trailer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110902360.0A CN113335398B (en) | 2021-08-06 | 2021-08-06 | Adjustable saddle type traction connector and trailer thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113335398A true CN113335398A (en) | 2021-09-03 |
| CN113335398B CN113335398B (en) | 2021-10-26 |
Family
ID=77480913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110902360.0A Active CN113335398B (en) | 2021-08-06 | 2021-08-06 | Adjustable saddle type traction connector and trailer thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113335398B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020185838A1 (en) * | 2000-12-05 | 2002-12-12 | David Shilitz | Remote control laterally adjustable towing-hitch assembly |
| CN101722805A (en) * | 2008-10-20 | 2010-06-09 | 尹贻广 | Rotation-swing type two-freedom traction seat |
| CN202130271U (en) * | 2011-07-12 | 2012-02-01 | 江苏海鹏特种车辆有限公司 | Angle and distance adjustable dragging clamp seat |
| CN206764231U (en) * | 2017-03-28 | 2017-12-19 | 唐山龙泉机械有限公司 | Traction seat main body welds rollover stand |
| EP3733432A1 (en) * | 2019-05-02 | 2020-11-04 | Sandvik Mining and Construction Oy | Towing arrangement and mine machine |
-
2021
- 2021-08-06 CN CN202110902360.0A patent/CN113335398B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020185838A1 (en) * | 2000-12-05 | 2002-12-12 | David Shilitz | Remote control laterally adjustable towing-hitch assembly |
| CN101722805A (en) * | 2008-10-20 | 2010-06-09 | 尹贻广 | Rotation-swing type two-freedom traction seat |
| CN202130271U (en) * | 2011-07-12 | 2012-02-01 | 江苏海鹏特种车辆有限公司 | Angle and distance adjustable dragging clamp seat |
| CN206764231U (en) * | 2017-03-28 | 2017-12-19 | 唐山龙泉机械有限公司 | Traction seat main body welds rollover stand |
| EP3733432A1 (en) * | 2019-05-02 | 2020-11-04 | Sandvik Mining and Construction Oy | Towing arrangement and mine machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113335398B (en) | 2021-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3623181B1 (en) | Automated trailer coupling arrangement | |
| CN113335398B (en) | Adjustable saddle type traction connector and trailer thereof | |
| CN115055874A (en) | Welding machining device for automobile part welding sleeve | |
| CN108189827B (en) | Combined parking valve and vehicle with same | |
| US6286565B1 (en) | Central tire inflation system and method | |
| CN211234872U (en) | Damper air tightness detection device for electric vehicle front fork production | |
| CN101837749A (en) | The automotive seat that have the areal of support of variable contour | |
| US2559962A (en) | Vehicular coupler | |
| CN209239538U (en) | A kind of tapping fixture of automobile abnormity draw nut | |
| GB2182635A (en) | Combined jack and air pump for vehicles | |
| CN212250377U (en) | Core structure of inflator pump | |
| CN102190004B (en) | Coupling head of an automatic middle buffer coupling | |
| CN210363477U (en) | Automobile chair back rotating mechanism | |
| CN211145006U (en) | Safety locking device of explosive mixed loading truck | |
| CN211262594U (en) | Rubber tube joint sealing mechanism and rubber tube air tightness testing device | |
| CN219769858U (en) | Trailer type synchronous braking control device for caravan | |
| EP0227256A2 (en) | Jack combined with an air pump and using a common drive motor | |
| CN212890271U (en) | Control box for automobile tire inflation and deflation controller | |
| CN213383961U (en) | Height control valve for automobile seat | |
| CN113635156B (en) | Opening metal drum shaping device | |
| CN111845658A (en) | Anti-overshoot automatic inflating device for bicycle tire | |
| CN213629880U (en) | Gas spring aerating device and production line | |
| CN114162167B (en) | Connecting device | |
| CN214790477U (en) | Tool convenient for inflating vehicle by external air source | |
| CN201427504Y (en) | Multi-purpose fast inflation device for tires |
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 |