CN216659702U - Rear door locking device of dumper - Google Patents
Rear door locking device of dumper Download PDFInfo
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- CN216659702U CN216659702U CN202122749852.9U CN202122749852U CN216659702U CN 216659702 U CN216659702 U CN 216659702U CN 202122749852 U CN202122749852 U CN 202122749852U CN 216659702 U CN216659702 U CN 216659702U
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- rear door
- electric push
- push rod
- locking device
- dump truck
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Abstract
The utility model discloses a rear door locking device of a dumper, and belongs to the technical field of dumpers. The utility model provides a tipper back door locking device, including travel switch, the back door colludes the subassembly, the baffle, proximity switch, electric putter, the electric putter support, a controller, the alarm, not only can solve between back door and the railway carriage because of the too big problem that leads to the material leakage in clearance, can also lift up the timely warning suggestion when the packing box is unloaded without opening the back door lock, have simple to operate concurrently, low cost, stability and high advantage of security.
Description
Technical Field
The utility model belongs to the technical field of dumper trucks, and particularly relates to a dumper rear door locking device.
Background
At present, the rear door of a container of the dump truck acts through a pull rod or a zipper without a power source, when the container is lifted to a certain angle, a door hook is opened for unloading, and the rear door of the container of the dump truck is opened under the action of the gravity of the rear door and is closed through mechanical locking or hydraulic locking. When the rear door is mechanically locked, the problem that the gap between the container and the rear door of the dump truck is difficult to control and the material is leaked often exists; although the hydraulic locking device solves the problem of material leakage caused by overlarge gap between the container and the rear door of the dump truck, the hydraulic locking device has the defects of high installation cost and high failure rate of a hydraulic system. In addition, when the container of the dump truck is lifted to unload materials, if the lock catch of the back door cannot be opened in time, the accidents of incapability of unloading materials and even overturning can be caused.
Therefore, how to design a tipper back door locking device with warning prompt facility, it not only can solve the clearance between back door and the railway carriage and be difficult to control, lead to the problem of leaking the material situation, can also in time indicate the warning when not opening the back door lock and lift up the packing box and unload, can have simple to operate, low cost concurrently, stability and security advantage such as high, is the real problem that the tipper technical field needs to solve urgently.
Through retrieving Chinese patent application, application number 201320100892.3, utility model discloses a tipper, its publication date is 2013 7 months, 31 days. The rear door locking device of the container of the dump truck comprises a fixed seat, a linkage rod, a transmission rod, a driving device, a push rod, a reset device and the like, saves manpower, improves unloading efficiency, avoids leakage of goods from the container of the dump truck, and cannot solve the problem that the dump truck cannot unload or even overturn due to failure of timely opening the rear door lock catch in the process of lifting and unloading the dump truck.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems of the rear door locking device of the existing dump truck, the utility model provides the rear door locking device of the dump truck, which can overcome the defects of material leakage, high failure rate of a hydraulic locking device and unstable performance caused by overlarge clearance between a container and a rear door when the rear door is mechanically locked in the prior art, and solve the problem that the dump truck cannot unload materials or even overturn due to failure in time to open the rear door lock catch in the process of lifting and unloading the dump truck.
2. Technical scheme
A rear door locking device of a dump truck comprises: the two electric push rod supports are arranged on two sides of the bottom of the large box bottom plate in an axisymmetric manner; the two electric push rod supports are respectively connected with an electric push rod, the end parts of the electric push rods are connected with a rear door hook assembly, the rear door hook assembly is pushed through the extension and retraction of the electric push rods, and the rear door of the large box is controlled to be locked or unlocked through the rear door hook assembly;
the vertical baffle that is provided with of back door hook subassembly and electric putter junction, the outside ladle body of electric putter is provided with the proximity switch who is in same horizontal plane with the baffle, big case bottom plate is close to back door one side, be provided with the travel switch who is in same horizontal plane with the baffle, electric putter contraction state, the baffle is close to proximity switch, proximity switch is in the normally closed, travel switch is kept away from to the baffle, travel switch keeps the normally closed, electric putter extends the state, proximity switch is kept away from to the baffle, proximity switch opens, baffle proximity travel switch, travel switch opens, the opening and closing of travel switch control big case lifting power takeoff gas circuit.
Furthermore, the alarm device is connected with the proximity switch, and the opening and the closing of the alarm device are controlled through the proximity switch. The alarm can be arranged in the cab or outside the cab, so long as the driver can hear the alarm.
Furthermore, the electric push rod is connected with a control switch, and the control switch controls the electric push rod to be turned on or off.
Furthermore, the control switch is arranged in the cab. The driver can remotely control the automobile through the cab.
Furthermore, the rear door hook component consists of a connecting rod, a rear door hook and a door hook shaft center, and the connecting rod is hinged with the rear door hook through the door hook shaft center.
Furthermore, the end part of the rear door hook is an inclined plane which is matched with the inclined plane at the bottom of the rear door of the large box. The big case back door can be guaranteed to be locked or opened stably through the back door hook.
Furthermore, the travel switch controls the opening and closing of the air passage of the large box lifting power takeoff, and the lifting power takeoff is controlled to control the lifting of the compartment.
Furthermore, the electric push rod support is welded at the bottom of the vehicle large box.
Furthermore, the electric push rod is connected with a power supply, and the power supply is controlled to be turned on or turned off through a control switch.
Furthermore, the power supply is an automobile battery. The automobile battery can be a 24V battery, and the automobile battery can be a battery which is arranged on the automobile and can be additionally and independently arranged.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that:
the device solves the problem of material leakage of the rear door of the conventional rear door locking device of the existing dumper, the rear door of the dumper is locked by the electric push rod, and the electric push rod locking device is safe in performance, convenient to install, low in failure rate, simple in structure and low in cost, so that the working efficiency of unloading of the dumper is greatly improved. The design has been close switch, travel switch, alarm, back door collude parts such as subassembly, through warning suggestion driver's tipper big case lifting the time must open the back door locking device earlier, avoided not opening the risk that directly lifts the railway carriage and lead to serious accident because of the back door, improved security and practicality.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
1-big box bottom plate; 2-big box back door; 3-rear door hook; 4, a travel switch; 5-door hook axis; 6, a baffle plate; 7-proximity switch; 8, an electric push rod; 9, an electric push rod support; 10-alarm; and 11, controlling a switch.
Detailed Description
The utility model is described in detail below with reference to the drawings and specific examples.
Example 1
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 1, a rear door locking device for a dump truck includes: two electric putter supports 9, electric putter support 9 welds in the big bottom of the case of vehicle. Two electric push rod supports 9 are axisymmetrically welded on two sides of the bottom of the big box bottom plate 1; the two electric push rod supports 9 are respectively connected with an electric push rod 8, the electric push rods 8 are connected through a control switch 11, and the electric push rods are opened and closed through the control switch 11. The control switch 11 is provided in the cab. The end part of the electric push rod 8 is connected with a rear door hook component, the rear door hook component consists of a connecting rod, a rear door hook 3 and a door hook axle center 5, and the connecting rod is hinged with the rear door hook 3 through the door hook axle center 5. The electric push rod 8 is connected with a power supply and controls the power supply to be turned on and off through the control switch 11. The power supply is an automobile battery. The automobile battery can be a 24V battery, and the automobile battery can be a battery which is arranged on the automobile and can be additionally and independently arranged. In the scheme, the left side and the right side of the tail part of the large box of the dump truck can be respectively provided with an electric push rod 8 which uses 24V power supply thrust to push 2000N and is used as power for opening and closing the rear door hook of the large box of the dump truck. The power supply is connected with a vehicle-mounted 24V storage battery.
The rear door hook component is pushed by the electric push rod 8 to stretch, and the rear door hook component controls the locking or the opening of the rear door 2 of the large box; the end part of the rear door hook 3 is an inclined plane which is matched with the inclined plane at the bottom of the large box rear door 2. The big case back door can be guaranteed to be locked or opened stably through the back door hook.
A baffle 6 is vertically arranged at the joint of the rear door hook assembly and the electric push rod 8, a proximity switch 7 which is positioned on the same horizontal plane with the baffle 6 is arranged on the barrel body outside the electric push rod 8, the bottom plate 1 of the large container is close to one side of the rear door, the baffle 6 is positioned on the same horizontal plane and is provided with a travel switch 4, the electric push rod 8 is in a contraction state, the baffle 6 is close to the proximity switch 7, the proximity switch 7 is normally closed, the electric push rod 8 is in an extension state, the baffle 6 is far away from the proximity switch 7, the proximity switch 7 is opened, the baffle 6 is close to the travel switch 4, the travel switch 4 is opened, and a lifting power takeoff is arranged at the bottom of the self-discharging container, is communicated with the travel switch 7 and is controlled by the travel switch 7; the travel switch 4 controls the opening and closing of the air passage of the large box lifting power takeoff.
Preferably, the scheme also comprises an alarm which is connected with the proximity switch 7 and is turned on and off through the proximity switch 7. The alarm is arranged in the cab and is communicated with the proximity switch, and the alarm is started when the baffle is far away from the proximity switch;
the travel switch 4 controls the opening and closing of the gas circuit of the large box lifting power takeoff, and controls the lifting power takeoff gas circuit to control the lifting and descending of the carriage.
When a large vehicle box needs to be lifted, the rear door lock hook is opened by pressing the control switch 11 in the cab, at the moment, the baffle 6 is pushed towards the rear door direction along with the electric push rod 8, the travel switch 4 is pushed to open the air passage, the air passage of the lifting power takeoff of the dump truck is connected, and the large box lifting operation is carried out. When the big box is lifted, the big box lifting air passage can be communicated only after the rear door hook 3 is opened, so that the serious safety accident caused by directly lifting the carriage without opening the rear door hook 3 is prevented.
When the baffle 6 is pushed towards the direction of the rear door along with the electric push rod 8, the baffle 8 leaves the proximity switch 7, the proximity switch 7 is connected with the alarm 10, and the alarm prompts a driver that the rear door lock hook is opened. The rear door hook is in an open state, and the alarm 10 always gives an alarm. The driver is prompted that the rear door hook 3 is not locked. When the carriage is reset, the electric push rod 8 pushes the rear door hook 3 to lock the rear door, the alarm is stopped at the moment, and the driver is informed of the fact that the rear door is locked. The rear door locking device is required to be opened firstly when the driver is prompted through alarming when the large box of the dumper is lifted, so that the risk of serious accidents caused by the fact that the carriage is directly lifted without opening the rear door is avoided, and the safety and the practicability are improved. And only the gas circuit and the back door are opened and linked with each other, so that the safety is effectively ensured, and the back door is prevented from being crushed due to misoperation. Effectively guaranteeing the service life of the carriage back door.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein should be covered within the scope of the present invention, and therefore the scope of the present invention should be subject to the protection scope of the appended claims.
Claims (10)
1. A rear door locking device of a dump truck is characterized by comprising: the two electric push rod supports (9), the two electric push rod supports (9) are axisymmetrically arranged on two sides of the bottom of the big box bottom plate (1); the two electric push rod supports (9) are respectively connected with an electric push rod (8), the end part of the electric push rod (8) is connected with a rear door hook component, the rear door hook component is pushed by the extension and contraction of the electric push rod (8), and the rear door hook component controls the locking or the opening of the large box rear door (2);
the rear door hook assembly is vertically provided with a baffle (6) at the joint of an electric push rod (8), an external barrel body of the electric push rod (8) is provided with a proximity switch (7) which is positioned on the same horizontal plane with the baffle (6), a large box bottom plate (1) is close to one side of a rear door, a travel switch (4) which is positioned on the same horizontal plane with the baffle (6) is arranged, the electric push rod (8) is in a contraction state, the baffle (6) is close to the proximity switch (7), the proximity switch (7) is in a normally closed state, the baffle (6) is far away from the travel switch (4), the travel switch (4) is kept in a normally closed state, the electric push rod (8) is in an extension state, the baffle (6) is far away from the proximity switch (7), the proximity switch (7) is opened, the baffle (6) is close to the travel switch (4), the travel switch (4) is opened, and the travel switch (4) controls the opening and closing of a large box lifting power takeoff gas circuit.
2. The rear door locking device of the dump truck according to claim 1, characterized by further comprising an alarm, wherein the alarm is connected with the proximity switch (7), and the opening and closing of the alarm are controlled through the proximity switch (7).
3. The rear door locking device of the dump truck as claimed in claim 1 or 2, wherein the electric push rod (8) is connected with a control switch (11), and the control switch (11) is used for controlling the opening and closing of the electric push rod (8).
4. The rear door locking device of the dump truck as claimed in claim 3, wherein the control switch (11) is arranged in a cab.
5. The rear door locking device of the dump truck according to claim 1, wherein the rear door hook assembly is composed of a connecting rod, a rear door hook (3) and a door hook shaft center (5), and the connecting rod is hinged with the rear door hook (3) through the door hook shaft center (5).
6. The locking device for the rear door of the dump truck as claimed in claim 5, wherein the end of the rear door hook (3) is an inclined surface, and is matched with the inclined surface at the bottom of the rear door (2) of the large box.
7. The rear door locking device of the dump truck as claimed in claim 1, wherein the travel switch (4) controls the opening and closing of a lifting power takeoff air passage of a large truck box, and the lifting power takeoff air passage is controlled to control the lifting and descending of a truck box.
8. The rear door locking device for the dump truck as claimed in claim 1, wherein the electric push rod support (9) is welded at the bottom of a large box of the vehicle.
9. The rear door locking device of the dump truck as claimed in claim 1 or 2, wherein the electric push rod (8) is connected with a power supply, and the power supply is controlled to be turned on or off by a control switch (11).
10. The locking device for the rear door of the dump truck as claimed in claim 9, wherein the power source is a battery of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122749852.9U CN216659702U (en) | 2021-11-10 | 2021-11-10 | Rear door locking device of dumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122749852.9U CN216659702U (en) | 2021-11-10 | 2021-11-10 | Rear door locking device of dumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216659702U true CN216659702U (en) | 2022-06-03 |
Family
ID=81790244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122749852.9U Active CN216659702U (en) | 2021-11-10 | 2021-11-10 | Rear door locking device of dumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216659702U (en) |
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2021
- 2021-11-10 CN CN202122749852.9U patent/CN216659702U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221117 Address after: 243000 Building 9, Incubation Park, 277 Zhongfei Avenue, zhengpugang New District, Maanshan City, Anhui Province Patentee after: MAGANG GROUP LOGISTICS Co.,Ltd. Address before: 243000 Flying Avenue 277, Zhengpugang New Area, Ma'anshan City, Anhui Province Patentee before: Anhui Masteel automobile transportation service Co.,Ltd. |
|
| TR01 | Transfer of patent right |