CN203460750U - Rear door locking device of dump truck - Google Patents
Rear door locking device of dump truck Download PDFInfo
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- CN203460750U CN203460750U CN201320527732.7U CN201320527732U CN203460750U CN 203460750 U CN203460750 U CN 203460750U CN 201320527732 U CN201320527732 U CN 201320527732U CN 203460750 U CN203460750 U CN 203460750U
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- valve
- locking
- oil
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- container
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Abstract
The utility model relates to a rear door locking device of a dump truck. The rear door locking device comprises two groups of limiting blocks, two locking oil cylinders, an air-controlled three-position six-way valve, a shunting and gathering valve, a locking operation handle and two limiting valves, wherein the two groups of limiting blocks are respectively arranged on two sides of a truck container rear door; the two locking oil cylinders are respectively arranged on two sides of a truck container, and the end part of a piston rod is provided with hoops corresponding to the two limiting blocks; an oil outlet B and an oil return port T2 of the air-controlled three-position six-way valve are respectively converged to a first throttling valve through a hydraulic pipeline and then connected to a rod cavity of the locking oil cylinder through an interlocking valve; a rodless cavity of each of the two locking oil cylinders is connected to two oil outlets of the shunting and gathering valve through a hydraulic pipeline, an oil inlet of the shunting and gathering valve is connected to an oil outlet A and an oil return port T2 of the three-position six-way valve through the interlocking valve and a second throttling valve; the locking operation handle is the hand-operated three-position six-way pneumatic valve, and an air circuit of the locking operation handle is connected to an air circuit of a jacking control system of the dump truck container; the two limiting valves are respectively a pneumatic valve and respectively arranged on two sides of the truck container rear door, and a valve rod of each limiting valve is correspondently arranged on the piston rod of the locking oil cylinder; and an air circuit of each limiting valve is respectively connected to a jacking operation valve, i.e. an air-controlled three-position five-way valve, of a jacking system of the truck container.
Description
Technology basin
The utility model relates to automobile technical field, particularly a kind of discharging vehicle rear door locking device.
Background technology
The wet type goods such as the dry type goods such as most of Large Dump Truck main transportation at present,, coal, the earthwork, stone and grain slag, mud.Vehicle is before lade, and the back door of container is in closed condition, and as shown in Figure 1,10 is that container, 20 is that back door closing organ, 30 is that back door sealing strip, 40 is back door.Back door is fastened it by back door hook, guarantees that container is in a relatively airtight space, and during vehicle unloading, back door hook is opened automatically, completes the unloading of vehicle.
As shown in Figure 2,50 is that plunger pump, 60 is that container jacking operating handle (three six-way valves), 70 is that limit valve, 80 is jacking cylinder to its container jacking hydraulic system.Container jacking operating handle is when hoisting position, and gas circuit promotes three position five-way valve 90 in container hoisting position, and hydraulic efficiency pressure system high pressure liquid force feed is released jacking cylinder, and container rises.By limit valve, guarantee the height that oil cylinder rises.Container operating handle is when lowering position, and oil cylinder relies on the deadweight of container to shrink, and hydraulic oil is got back to fuel tank.
From the traffic condition of current dumping car, it is unrestrained that the goods of transportation dry type can guarantee that goods has or not in transportation substantially.But when the goods of transportation wet type, because the aqueous ingredients of goods is higher, the situation of having leaked while having caused transportation wet type goods, serious water and the wet feed unrestrained situation simultaneously that more can occur.
The harm that unrestrained goods causes:
1. unrestrained goods is deposited on road, pollutes the environment of road periphery, if run into strong wind, the goods blowing afloat affects the healthy of pedestrian;
2. after unrestrained wet type goods spills and falls earthward, easily freeze winter, and the safety traffic of vehicle is existed to hidden danger, also easily causes the pedestrian at passing this place to skid and fall;
3. vehicle blanking in transportation, has affected the operating efficiency of vehicle.
Summary of the invention
The purpose of this utility model is to design a kind of discharging vehicle rear door locking device, in the situation that the former tensioner mechanism that has a back door connection is constant, position, back door is installed additional to a set of hydraulic locking apparatus, this device can be tightly fixed together container, rubber weather strip, this three of back door, guaranteed the sealing property of back door of vehicle, guarantee vehicle when transporting cargo without the unrestrained situation of goods.
For achieving the above object, the technical solution of the utility model is:
A discharging vehicle rear door locking device, it comprises, and two groups of limiting stoppers are arranged at respectively both sides, vehicular container back door, and two limiting stoppers in every group of limiting stopper are relatively arranged on vehicular container and back door; Two locking cylinders, are arranged at respectively both sides on vehicular container, are positioned at two groups of limiting stoppers top, and the piston rod free end of locking cylinder is established clip, are relatively arranged on two limiting stoppers on vehicular container and back door described in correspondence; Three six-way valves of gas control, 2 mouthfuls of the oil outlet B mouth on it and oil return inlet T are crossed respectively to the first flow-limiting valve by hydraulic tubing respectively, then through interlock valve, are connected to respectively the rod chamber of described two locking cylinders by hydraulic tubing; Wherein, be connected on the hydraulic tubing of 2 mouthfuls of three six-way valve oil return inlet T of gas control and establish safety valve; Flow divider-combiner, the rodless cavity of described two locking cylinders is connected to respectively two oil outlets of flow divider-combiner by hydraulic tubing, flow divider-combiner oil inlet is connected to 2 mouthfuls of the oil outlet A mouth of three six-way valves and oil return inlet T by hydraulic tubing respectively by hydraulic tubing again through described interlock valve and the second flow-limiting valve; Wherein, be connected on the hydraulic tubing of 2 mouthfuls of three six-way valve oil return inlet T and establish safety valve; Locking operation handle, manual three six lead to pneumatic valves (three six logical hand change over valves), and its gas circuit connects the gas circuit of discharging vehicle container jacking control system; Two limit valves, it is pneumatic valve, is arranged at respectively both sides, vehicular container back door, its valve rod correspondence is arranged at the piston rod of two locking cylinders; The jacking operating valve that its gas circuit is connected to respectively vehicular container jacking control system is gas control three position five-way valve.
Further, described limiting stopper is wedge shape, and accordingly, described clip is wedge shape.
The utility model, according to the feature of vehicle itself, installs latching device additional at vehicular container and position, back door, at container, position, back door, installs spacing iron block additional, during locking cylinder work, container, sealing band, back door is tightly fixed together.Because self-locking device limits hydraulic oil automatic back flow by interlock valve, therefore, guaranteed the locking property of self-locking device.
Latching device is a set of pneumatic, work system that hydraulic pressure combines, by gas circuit, hydraulic efficiency pressure system is controlled, is completed stretching out, shrinking of oil cylinder, conscientiously accomplished vehicle when transportation wet type material without unrestrained situation, reach the requirement of the clean transportation of country, improve the operating rate of vehicle.
The beneficial effects of the utility model:
After the utility model is installed by self-locking device, guaranteed that container, sealing band, back door can tightly link together, and guaranteed that by interlock valve hydraulic oil cannot reflux, therefore, the power after locking is guaranteed, and has improved the sealing property at back door.Stopped the loose situation that vehicle exists when transportation wet type goods.
The utility model self-locking device is by two limit valves are set, and after locking cylinder stretches out, limit valve cuts off the gas circuit of container, so container cannot jack-up, guaranteed the safety of container jack-up operation.Two limit valves are installed in system by the mode of series connection, if a limit valve damages, container becomes cannot jack-up, and the safety factor of vehicle operation is guaranteed.
The beneficial effects of the utility model are:
1. simple and reasonable, this device only need add relevant valve, oil cylinder, tracheae on the basis of original hydraulic efficiency pressure system, just can complete the installation of catch gear.
2. clean transportation, vehicle can not produce the unrestrained situation of goods in transportation, guarantees the clean transportation of vehicle.
3. easy to operate, operating personal only need operate the button of latching device, just can complete the work of latching device.
4. commonality, generalization are strong, at the discharging vehicle of use, all this latching device can be installed.
5. stable work in work, the number of stoppages is lower, and therefore, the maintenance of service personnel load declines.The utilization of this device, effectively reduces the supplies consumption of vehicle in maintenance.By statistics, save every year supplies expenses 150,000 yuan of left and right.
Accompanying drawing explanation
Fig. 1 is the structural representation at existing discharging vehicle back door.
Fig. 2 is the schematic diagram of existing discharging vehicle hydraulic jacking system.
Fig. 3 is the structural representation of the utility model embodiment.
Fig. 4 is the hydraulic schematic diagram of the utility model embodiment.
Fig. 5 is the hydraulic principle enlarged diagram of the utility model embodiment.
The specific embodiment
Referring to Fig. 3～Fig. 5, a kind of discharging vehicle rear door locking device of the present utility model, it comprises, two groups of limiting stopper 1(be take limiting stopper 1 as example, lower same), be arranged at respectively 40 both sides, vehicular container 10 back door, two limiting stoppers 101,102 in every group of limiting stopper 1 are relatively arranged on vehicular container 10 and back door 40; Two locking cylinders 2,2 ', be arranged at respectively both sides on vehicular container 10, be positioned at two groups of limiting stoppers top 1, locking cylinder 2,2 ' piston rod free end are established clip 201, are relatively arranged on two limiting stoppers 101,102 on vehicular container 10 and back door 40 described in correspondence; Three six-way valves 3 of gas control, are pneumatic valve, and 2 mouthfuls of the oil outlet B mouth on it and oil return inlet T are crossed respectively to the first flow-limiting valve 4 by hydraulic tubing respectively, then through interlock valve, are connected to respectively described two locking cylinders 2,2 ' rod chamber by hydraulic tubing; Wherein, be connected on the hydraulic tubing of 2 mouthfuls of three six-way valves of gas control, 3 oil return inlet T and establish safety valve 5; Flow divider-combiner 6, described two locking cylinders 2,2 ' rodless cavity are connected to respectively two oil outlets of flow divider-combiner 6 by hydraulic tubing, flow divider-combiner 6 oil inlets are connected to 2 mouthfuls of the oil outlet A mouth of three six-way valves 3 of gas control and oil return inlet T by hydraulic tubing respectively by hydraulic tubing again through described interlock valve 7 and the second flow-limiting valve 8; Wherein, be connected on the hydraulic tubing of 2 mouthfuls of three six-way valves of gas control, 3 oil return inlet T and establish safety valve 9; Locking operation handle 11, manual three six lead to pneumatic valves, and it is pneumatic valve, and gas circuit connects the gas circuit of discharging vehicle container jacking control system; Two limit valves 12,12 ', it is pneumatic valve, is arranged at respectively 40 both sides, vehicular container 10 back door, its valve rod correspondence is arranged at two locking cylinders 2,2 ' piston rod; The jacking operating valve 60 that its gas circuit is connected to respectively vehicular container jack-up system is gas control three position five-way valve.
Further, described limiting stopper is wedge shape, and accordingly, described clip is wedge shape.
Locking cylinder 2,2 ' rodless cavity position (back door locking):
The working process of interlock valve 7:
Hydraulic oil, through interlock valve B1 mouth, is first opened P2 mouth, and hydraulic oil reaches locking cylinder 2,2 ' rodless cavity through the P mouth of flow divider-combiner 6; Again, interlock valve B1 mouth is opened A2 mouth, and A2 mouth is opened P1 mouth, makes thus locking cylinder 2,2 ' rod chamber hydraulic oil complete oil return.
Locking cylinder 2,2 ' rod chamber position (open at back door):
The working process of interlock valve 7:
Hydraulic oil, through the A1 mouth of interlock valve 7, is first opened P1 mouth, A1 mouth and the intercommunication of A2 mouth, and the P mouth that hydraulic oil passes through flow divider-combiner 6 reaches locking cylinder 2,2 ' rod chamber; Meanwhile, the A1 mouth of interlock valve 7 is opened P2 mouth, and A2 mouth and the intercommunication of B2 mouth make locking cylinder 2,2 ' rodless cavity hydraulic oil complete oil return thus.
The utilization of the utility model latching device, efficiently solves the unrestrained situation that vehicle exists at the larger wet type goods of transport moisture content, greatly reduces the number of stoppages at container back door, has reduced the working strength of service personnel, has improved the degree of utilization of vehicle.Therefore, discharging vehicle all can be installed container jacking self-locking device.This device is installed simple, stable performance, and easily operation only need be correlated with after training to chaufeur, just can have single operation, has good promotion prospect.
Claims (2)
1. a discharging vehicle rear door locking device, is characterized in that, comprise,
Two groups of limiting stoppers, are arranged at respectively both sides, vehicular container back door, and two limiting stoppers in every group of limiting stopper are relatively arranged on vehicular container and back door;
Two locking cylinders, are arranged at respectively both sides on vehicular container, are positioned at two groups of limiting stoppers top, and the piston rod free end of locking cylinder is established clip, are relatively arranged on two limiting stoppers on vehicular container and back door described in correspondence;
Three six-way valves of gas control, 2 mouthfuls of the oil outlet B mouth on it and oil return inlet T are crossed respectively to the first flow-limiting valve by hydraulic tubing respectively, then through interlock valve, are connected to respectively the rod chamber of described two locking cylinders by hydraulic tubing; Wherein, be connected on the hydraulic tubing of 2 mouthfuls of three six-way valve oil return inlet T and establish safety valve;
Flow divider-combiner, the rodless cavity of described two locking cylinders is connected to respectively two oil outlets of flow divider-combiner by hydraulic tubing, flow divider-combiner oil inlet is connected to 2 mouthfuls of the oil outlet A mouth of three six-way valves and oil return inlet T by hydraulic tubing respectively by hydraulic tubing again through described interlock valve and the second flow-limiting valve; Wherein, be connected on the hydraulic tubing of 2 mouthfuls of three six-way valve oil return inlet T and establish safety valve;
Locking operation handle, manual three six lead to pneumatic valves, and its gas circuit connects the gas circuit of discharging vehicle container jacking control system;
Two limit valves, it is pneumatic valve, is arranged at respectively both sides, vehicular container back door, its valve rod correspondence is arranged at the piston rod of two locking cylinders; The jacking operating valve handle that its gas circuit is connected to respectively vehicular container jacking control system is gas control three position five-way valve.
2. discharging vehicle rear door locking device as claimed in claim 1, is characterized in that, described limiting stopper is wedge shape, and accordingly, described clip is wedge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320527732.7U CN203460750U (en) | 2013-08-27 | 2013-08-27 | Rear door locking device of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320527732.7U CN203460750U (en) | 2013-08-27 | 2013-08-27 | Rear door locking device of dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203460750U true CN203460750U (en) | 2014-03-05 |
Family
ID=50173132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320527732.7U Expired - Lifetime CN203460750U (en) | 2013-08-27 | 2013-08-27 | Rear door locking device of dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203460750U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527491A (en) * | 2014-12-30 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Lifting oil cylinder fixing device and dumper |
| CN108437731A (en) * | 2018-04-13 | 2018-08-24 | 无锡市东鹏金属制品有限公司 | Automobile shock-avoiding suspension device clip casting |
| RU212787U1 (en) * | 2022-05-19 | 2022-08-08 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный аграрный университет" (ФГБОУ ВО Казанский ГАУ) | DEVICE FOR AUTOMATIC UNLOCKING AND LOCKING OF BOARD OF DUMP BODY |
-
2013
- 2013-08-27 CN CN201320527732.7U patent/CN203460750U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527491A (en) * | 2014-12-30 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Lifting oil cylinder fixing device and dumper |
| CN108437731A (en) * | 2018-04-13 | 2018-08-24 | 无锡市东鹏金属制品有限公司 | Automobile shock-avoiding suspension device clip casting |
| CN108437731B (en) * | 2018-04-13 | 2023-07-04 | 无锡市东鹏金属制品有限公司 | Clamp casting of shock-absorbing suspension device for automobile |
| RU212787U1 (en) * | 2022-05-19 | 2022-08-08 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный аграрный университет" (ФГБОУ ВО Казанский ГАУ) | DEVICE FOR AUTOMATIC UNLOCKING AND LOCKING OF BOARD OF DUMP BODY |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |
|
| CX01 | Expiry of patent term |