CN112208420A - Truck bottom opening and closing device and truck - Google Patents
Truck bottom opening and closing device and truck Download PDFInfo
- Publication number
- CN112208420A CN112208420A CN201910631474.9A CN201910631474A CN112208420A CN 112208420 A CN112208420 A CN 112208420A CN 201910631474 A CN201910631474 A CN 201910631474A CN 112208420 A CN112208420 A CN 112208420A
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- China
- Prior art keywords
- bottom plate
- truck
- frame structure
- opening
- plate frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/56—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load-transporting element having bottom discharging openings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D3/00—Wagons or vans
Abstract
The invention discloses a truck bottom opening and closing device and a truck. The truck bottom opening and closing device comprises a bottom plate frame structure and a bottom plate, wherein a front telescopic device and a rear telescopic device are arranged on one side of the bottom plate frame structure, and telescopic sections of the front telescopic device and the rear telescopic device are arranged to be capable of driving the bottom plate to move back and forth along the bottom plate frame structure; the bottom plate is provided with an automatic locking device, the automatic locking device comprises a lock cylinder fixed on one side of the bottom plate and a lock tongue matched with the lock cylinder, and the automatic locking device further comprises an elastic device for pressing the lock tongue into the lock cylinder. The wagon bottom opening and closing device can enable the wagon bottom to be automatically opened.
Description
Technical Field
The invention relates to a wagon bottom opening and closing device and a wagon.
Background
Railway transportation is always an important mode for transporting bulk goods, and the bulk goods mainly comprise coal, ore, grain crops and the like. At present, most of trucks, whether railway transportation or road transportation, do not have the capability of loading and unloading goods independently. With the proposal of the concepts of cost reduction, efficiency improvement and lean saving, the loading and unloading of the truck are gradually automated, and the automatic loading technology of the truck depends on the configuration of the truck.
The unloading of bulk cargo is usually accomplished by a bottom door at the bottom of the truck. At present, a bottom door of a truck usually directly welds a bottom door plate and other accessories to a reserved opening at the bottom of the truck through combination, and the bottom door can only be manually operated and does not have an automatic opening and closing function and a self-locking function.
Therefore, the truck bottom opening and closing device with high automation degree is developed, and the automation of propelling the bulk cargo truck is greatly facilitated.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a bottom opening and closing device for a truck, which can be automatically opened and closed and automatically locked, not only improving the degree of automation of loading and unloading goods by the truck, but also automatically locking and preventing theft.
Another object of the present invention is to provide a truck having the truck bottom opening and closing device.
The invention adopts the following technical scheme to achieve the purpose.
The invention provides a truck bottom opening and closing device which comprises a bottom plate frame structure and a bottom plate, wherein the bottom plate frame structure is arranged to be fixedly connected to a truck bottom opening;
a front and rear telescopic device is arranged on one side of the bottom plate frame structure, and a telescopic section of the front and rear telescopic device is arranged to be capable of driving the bottom plate to move back and forth along the bottom plate frame structure;
the bottom plate is provided with an automatic locking device, the automatic locking device comprises a lock cylinder fixed on one side of the bottom plate and a lock tongue matched with the lock cylinder, and the automatic locking device also comprises an elastic device for pressing the lock tongue into the lock cylinder;
one end of the lock tongue is hinged to one side of the bottom plate frame structure, and the other end of the lock tongue is connected with the elastic device; the elastic device is fixed on one side of the bottom plate frame structure; the middle part of spring bolt is equipped with downward arch, the middle part of the flexible section of front and back telescoping device is equipped with the arch that makes progress, downward arch with it is equipped with first gyro wheel to make progress between the arch.
When the spring device presses the lock tongue into the lock cylinder, the bottom plate covers the opening at the bottom of the truck, so that the opening is in a closed state; after the lock tongue is popped out from the lock cylinder, the bottom plate moves backwards under the action of the front and rear telescopic devices, and the bottom plate gradually moves away and opens the bottom opening of the truck.
In the present invention, the truck bottom opening is sealed by the floor frame structure and the floor. The bottom plate frame structure is fixed at the opening, and the bottom plate moves back and forth along the bottom plate frame structure under the driving of the front and rear telescopic devices, so that the automatic opening and closing of the wagon bottom opening and closing device are realized. When the telescopic section of the front and rear telescopic devices is telescopic, the upward protrusion is driven to move back and forth, but the downward protrusion arranged in the middle of the lock tongue cannot move back and forth and can only move up and down, so that the lock tongue moves up and down under the action of the upward protrusion and the first roller, and the lock tongue and the lock cylinder are opened or locked. When the opening and closing device at the bottom of the truck needs to be opened, the front and rear telescopic devices drive the telescopic section to move the lock tongue upwards, and the automatic locking device is started; when the opening and closing device at the bottom of the truck needs to be locked, the front and rear telescopic devices drive the telescopic sections to move the lock tongue downwards, the automatic locking device is locked, and the elastic device presses the lock tongue downwards to enter the lock core. According to an embodiment of the invention, the first roller is provided at a lower middle portion or a bottom portion of the downward protrusion.
According to the truck bottom opening and closing device of the present invention, preferably, the bottom plate frame structure is provided with a second roller, and the lower surface of the bottom plate is connected to the second roller in a rolling manner. Therefore, the damage caused by the rigid friction of the bottom plate on the bottom plate frame can be avoided, and the service life of the bottom opening and closing device is prolonged. In addition, the driving force during opening and closing can be reduced, and convenience is provided for manual operation.
According to the truck bottom opening and closing device, a rotating shaft is preferably arranged below the bottom plate, and the end part of the rotating shaft is fixed on the bottom plate frame structure through a bearing; the rotating shaft is provided with a gear, and a rack meshed with the gear is arranged below the bottom plate. When the driving device drives the bottom plate to move back and forth, the gear and the rack perform meshing motion, so that the back and forth motion of the bottom plate is more stable and easier. According to an embodiment of the present invention, the left and right sides of the bottom plate frame structure are provided with sliding grooves, and the left and right sides of the bottom plate are slidably connected in the sliding grooves of the bottom plate frame structure. The bottom plate can only move back and forth along the sliding groove due to the limitation of the sliding groove, the up-and-down movement and the left-and-right movement of the bottom plate are limited, and the sealing performance and the safety of the bottom opening and closing device are improved. Preferably, the gear is provided at an end of the rotating shaft. More preferably, the number of the gears is two, and the two gears are respectively arranged at two ends of the rotating shaft.
According to the truck bottom opening and closing device provided by the invention, preferably, the bottom plate frame structure is provided with a second roller, and the lower surface of the bottom plate is connected with the second roller in a rolling manner. The damage caused by rigid friction of the bottom plate on the bottom plate frame is avoided, the service life of the bottom opening and closing device is prolonged, the driving force during opening and closing is reduced, and convenience is provided for manual operation.
According to the truck bottom opening and closing device of the present invention, preferably, the automatic locking device further comprises a lock box fixed on the floor frame structure; the elastic device comprises a pull-up spring and a transmission rod; one end of the pull-up spring is connected to one side of the lock box, the other end of the pull-up spring is rotatably connected to one end of the transmission rod, the other end of the transmission rod is hinged to one end of the lock tongue, the middle of the transmission rod is rotatably connected to one side of the lock box through a pin shaft, and a first rotating wrench is arranged at the end of the pin shaft. One end of the transmission rod is pulled upwards by the pull-up spring, and the middle part of the transmission rod is rotationally connected to the lock box, so that the other end of the transmission rod can generate a pressing action force on the lock tongue, the lock tongue is pressed into the lock core, locking is realized, and the bottom plate frame structure do not move back and forth any more. The end of the pin shaft can be designed into a non-standard shape or a national standard shape according to requirements and then provided with a corresponding first rotating wrench. If the automatic locking device needs to be manually opened, the end part of the pin shaft only needs to be rotated through the first rotating wrench, so that the transmission rod is rotated, the end, hinged with the lock tongue, of the transmission rod is upwards lifted, and the locking state can be relieved. After the automatic locking device releases the locking device, the bottom opening and closing device of the truck can be opened by manually moving the bottom plate. Manual opening requires a special tool, and the anti-theft performance is improved.
According to the truck bottom opening and closing device, preferably, the end part of the telescopic section of the front and rear telescopic devices is provided with a strip-shaped hole; the strip-shaped holes are arranged along the telescopic direction of the telescopic device; one side of the bottom plate is provided with a fixing column which can penetrate through the strip-shaped hole. When flexible section promoted the bottom plate backward, lock core on the bottom plate also can follow the rearward movement, and in order to avoid lock core and spring bolt card to die, the bar hole can make the spring bolt upwards lift in advance, avoids the card to die. When the spring bolt lifts and breaks away from the lock core, the telescopic section continues to move the bottom plate by pushing the fixing column.
According to the truck bottom opening and closing device provided by the invention, preferably, one side of the lock box is provided with a limit stop capable of limiting the downward pressing limit of the lock bolt. This structure can restrict the limit that the spring bolt pushed down. In the present invention, preferably, the limiting stop is a cylindrical or bar-shaped protrusion.
The truck bottom opening and closing device according to the present invention preferably further comprises an auxiliary frame disposed at the opening of the truck bottom and corresponding to the floor frame structure; the edge of the bottom plate frame structure is of an L-shaped steel structure, and the L-shaped steel structure is provided with a horizontal edge and a vertical edge; a plurality of first threaded holes are formed in the horizontal edge, and a plurality of second threaded holes corresponding to the first threaded holes are formed in the auxiliary frame; the vertical edge is used for the rotating shaft to pass through; and a second rotary wrench is arranged at the end part of the rotating shaft. According to one embodiment of the invention, the four sides of the bottom plate frame structure and the auxiliary frame are both made of L-shaped steel structures, corresponding threaded holes are formed in the horizontal edges of the L-shaped steel structures of the bottom plate frame structure and the auxiliary frame, and the bottom plate frame structure is mounted on the auxiliary frame through bolts.
In the invention, the auxiliary frame is welded with the opening at the bottom of the truck through threads or fixed welding, and the bottom plate frame structure is connected with the auxiliary frame through threads. Compared with the traditional welding, the invention avoids the deformation caused by welding, thereby avoiding the clamping stagnation and leakage phenomena caused by the deformation. When the manual operation is carried out, the rotating shaft is rotated by using the second rotating wrench, so that the bottom plate can be pushed to move back and forth. The end of the rotating shaft can be set to be in a non-standard shape according to needs, the second wrench is provided with a corresponding shape, a special tool is needed by manual opening, and the anti-theft performance is improved.
The truck bottom opening and closing device according to the present invention preferably further comprises a fulcrum frame; the lock cylinder is fixed on one side of the bottom plate through the fulcrum frame; the lock cylinder is fixed at the top of the fulcrum frame; the fixed column is fixed on one side of the fulcrum frame. The arrangement of the fulcrum frame provides an operation space for the automatic locking device.
The truck bottom opening and closing device according to the present invention preferably further comprises a balance beam; the number of the bottom plates is two, the two bottom plates are horizontally arranged at intervals and are connected through the balance beam; the two ends of the balance beam are fixed on the left side and the right side of the bottom plate frame structure; the fulcrum frame is arranged at the position of the balance beam between the two bottom plates; the front and rear telescopic devices and the lock box are arranged at the position between the two bottom plates of the bottom plate frame structure.
The structure is mainly suitable for the design of two adjacent funnel-shaped bottom openings at the bottom of the conventional truck. The bottom plate frame structure is arranged at the bottom openings of the two funnels, one bottom plate seals one opening, and the space between the two openings is used for installing the telescopic device, the fulcrum frame and the lock box. The fulcrum frame is arranged on a balance beam which is connected with the two bottom plates, and the front and back telescopic devices and the lock box are arranged on a bottom plate frame structure or fixed external structures such as the bottom of the funnel.
The invention also provides a truck which is provided with the truck bottom opening and closing device. The bottom opening and closing device can realize automatic opening and closing, and improves the sealing performance and the safety performance.
The truck bottom opening and closing device can realize automatic opening and closing of the bottom door, greatly improves the sealing performance and the safety performance, and is suitable for automatic loading and unloading trucks with higher automation.
Drawings
Fig. 1 is a schematic structural diagram of a truck bottom opening and closing device, an auxiliary frame and a wear pad plate which are matched.
Fig. 2 is a schematic structural view of a truck bottom opening and closing device according to the present invention.
Fig. 3 is a schematic structural view of an automatic locking device and a front and rear telescopic device of the present invention.
Fig. 4 is a schematic view of a structure of a bottom plate frame structure and a bottom plate of the invention.
Fig. 5 is a schematic diagram of a disassembled structure of the truck bottom opening and closing device of the present invention.
Fig. 6 is a schematic structural diagram of an automatic locking device of the present invention.
The device comprises a base plate frame structure 1, a base plate 2, a rotating shaft 3, a lock box 4, a front and back telescopic device 7, an auxiliary frame 8, a fulcrum frame 9, a wearing backing plate 10, a bearing 11, an upward bulge 13, a first roller 14, a downward bulge 15, a lock cylinder 16, a balance beam 17, a rack 18, a gear 19, a rotating shaft support 20, a support 21, a support beam 22, a second roller 23, a bolt 24, a pull-up spring 25, a pin shaft 26, a limiting stop 27, a strip-shaped hole 28, a fixing column 29 and a transmission rod 30.
Detailed Description
The present invention will be described more specifically and further illustrated with reference to specific examples, which are by no means intended to limit the scope of the present invention.
Example 1
Fig. 1 is a schematic structural diagram of a truck bottom opening and closing device, an auxiliary frame and a wear pad plate which are matched. Fig. 2 is a schematic structural view of a truck bottom opening and closing device according to the present invention. The truck bottom opening and closing device of the present embodiment includes a rectangular floor frame structure 1, a rectangular floor 2, and an auxiliary frame 8. The floor frame structure 1 is fixedly connected to the bottom opening of the truck through an auxiliary frame 8. The left and right sides of the bottom plate frame structure 1 are provided with sliding grooves (not marked in the figure), and the left and right sides of the bottom plate 2 are arranged in the sliding grooves and are connected with the bottom plate frame structure 1 in a front-back sliding manner. Four sides of the bottom plate frame structure 1 and the auxiliary frame 8 are composed of L-shaped steel structures, corresponding threaded holes are formed in the horizontal edges of the L-shaped steel structures of the bottom plate frame structure 1 and the auxiliary frame 8, and the bottom plate frame structure 1 is installed on the auxiliary frame 8 through bolts.
Fig. 3 is a schematic structural view of an automatic locking device and a front and rear telescopic device of the present invention. A rotating shaft 3 is arranged below the bottom plate 2. Two ends of the rotating shaft 3 are fixed through bearings 11 and penetrate through the vertical edges of the L-shaped steel structure of the bottom plate frame structure 1. Fig. 5 is a schematic diagram of a disassembled structure of the truck bottom opening and closing device of the present invention. As shown in fig. 5, the shaft 3 is provided with a gear 19. A rack 18 engaged with the gear 19 is provided below the base plate 2. Fig. 4 is a schematic view of a structure of a bottom plate frame structure and a bottom plate of the invention. As shown in fig. 4, a fulcrum frame 9 is fixed on one side of the bottom plate 2, and a lock core 16 is arranged on the top of the fulcrum frame 9.
As shown in fig. 1, the floor frame structure 1 is provided with a front-rear expansion device 7 and a lock case 4. Fig. 6 is a schematic structural view of the automatic locking device of the present invention. As shown in fig. 6, the lock case 4 is provided with a pull-up spring 25, a transmission rod 30 and a bolt 24; one end of the pull-up spring 25 is connected to one side of the lock box 4, the other end of the pull-up spring 25 is rotatably connected to one end of the transmission rod 30, the other end of the transmission rod 30 is hinged to one end of the latch bolt 24, and the middle part of the transmission rod 30 is rotatably connected to one side of the lock box 4 through the pin shaft 26. The bolt 24 is arranged above the lock core 16, one end of the bolt 24 is hinged with the transmission rod 30, and the other end of the bolt 24 is hinged with one side of the lock box 4.
The middle part of the locking tongue 24 is provided with a downward projection 15. The middle part of the telescopic section of the front and rear telescopic devices 7 is provided with an upward bulge 13. A first roller 14 is provided between the downward projection 15 and the upward projection 13. The end of the telescopic section of the front and rear telescopic devices 7 is provided with a strip-shaped hole 28, and the strip-shaped hole 28 is arranged along the telescopic direction of the telescopic section of the front and rear telescopic devices 7. One side of the fulcrum frame 9 is provided with a fixing column 29, and the fixing column 29 penetrates through the strip-shaped hole 28.
Example 2
Fig. 1 is a schematic structural diagram of a truck bottom opening and closing device, an auxiliary frame and a wear pad plate which are matched. Fig. 2 is a schematic structural view of a truck bottom opening and closing device according to the present invention. The truck bottom opening and closing device of the embodiment comprises a bottom plate frame structure 1, a rectangular bottom plate 2 and an auxiliary frame 8. The bottom plate frame structure 1 is fixedly connected to the bottom opening of the rectangular wagon through the auxiliary frame 8, sliding grooves (not marked in the figure) are formed in the left side and the right side of the bottom plate frame structure 1, and the left side and the right side of the bottom plate 2 are installed in the sliding grooves and are connected with the bottom plate frame structure 1 in a front-back sliding mode. Wherein, four limits of bottom plate frame construction 1 and auxiliary frame 8 constitute by L shaped steel structure, are equipped with corresponding screw hole on the horizontal border of the L shaped steel structure of bottom plate frame construction 1 and auxiliary frame 8, install bottom plate frame construction 1 on auxiliary frame 8 through the bolt.
Fig. 3 is a schematic structural view of an automatic locking device and a front and rear telescopic device of the present invention. A rotating shaft 3 is arranged below the bottom plate 2. Two ends of the rotating shaft 3 are fixed through a bearing 11 and penetrate through the vertical edge of the L-shaped steel structure of the bottom plate frame structure 1. Fig. 5 is a schematic diagram of a disassembled structure of the truck bottom opening and closing device of the present invention. As shown in fig. 5, a gear 19 is provided on the shaft 3. A rack 18 meshed with a gear 19 is arranged below the bottom plate 2. Fig. 4 is a schematic view of a structure of a bottom plate frame structure and a bottom plate of the invention. As shown in fig. 4, a fulcrum frame 9 is fixed on one side of the bottom plate 2, and a lock core 16 is arranged on the top of the fulcrum frame 9.
As shown in fig. 1, a front-back expansion device 7 and a lock box 4 are fixedly installed on one side of the floor frame structure 1. Fig. 6 is a schematic structural view of the automatic locking device of the present invention. As shown in fig. 6, the lock case 4 is provided with a pull-up spring 25, a transmission rod 30 and a latch 24, one end of the pull-up spring 25 is connected to one side of the lock case 4, the other end of the pull-up spring 25 is rotatably connected to one end of the transmission rod 30, the other end of the transmission rod 30 is hinged to one end of the latch 24, and the middle part of the transmission rod 30 is rotatably connected to one side of the lock case 4 through a pin shaft 26. The bolt is arranged above the lock core 16, one end of the bolt 24 is hinged with the transmission rod 30, and the other end of the bolt 24 is hinged with one side of the lock box 4.
The middle of the latch tongue 24 is provided with a downward projection 15. An upward bulge 13 is arranged in the middle of the telescopic section of the front and rear telescopic devices 7, and a first roller 14 is arranged between the downward bulge 15 and the upward bulge 13. The end part of the telescopic section of the front and rear telescopic devices 7 is provided with a strip-shaped hole 28, the strip-shaped hole 28 is arranged along the telescopic direction of the telescopic section, one side of the fulcrum frame 9 is provided with a fixing column 29, and the fixing column 29 penetrates through the strip-shaped hole 28.
Wherein, a first rotating wrench (not shown) is provided at the end of the pin shaft 26, and a second rotating wrench (not shown) is provided at the end of the rotating shaft 3.
Example 3
As shown in fig. 5, the bottom plate frame structure 1 of the opening and closing device for the bottom of a truck of this embodiment is provided with support beams 22 disposed on the left and right sides, a support member 21 disposed on the front and rear sides of the support beam 22 is provided on the support member 21, the second roller 23 rotates in the front and rear direction, and the lower surface of the bottom plate 2 is connected to the second roller 23 in a rolling manner. The rest of the structure was the same as in example 2.
Example 4
In the opening and closing device for the bottom of the truck in the embodiment, a wear pad 10 is arranged between the bottom plate frame structure 1 and the auxiliary frame 8. The rest of the structure was the same as in example 3.
Example 5
This embodiment provides a freight train, and this freight train bottom has the hopper-shaped freight train bottom opening that leaks hopper-shaped that two intervals set up, and an auxiliary frame 8 is fixed to every freight train bottom opening, and threaded connection bottom plate frame structure 1 is gone up to two auxiliary frame 8, and every bottom opening still is furnished with a bottom plate 2, swing joint on bottom plate frame structure 1 around 2, and connect through weighing apparatus roof beam 17, weighing apparatus roof beam 17 both ends are fixed in the left and right sides of bottom plate frame structure 1, and fulcrum frame 9 sets up in the position of weighing apparatus roof beam 17 between two bottom plates 2, and front and back telescoping device 7 and lock box 4 all set up in the position of bottom plate frame structure 1 between two bottom plates 2. The two bottom plates 2 share one rotating shaft 3, and the rotating shaft 3 is provided with two gears 19. Through setting up like this, can realize that two openings of freight train are opened simultaneously and are closed, and around telescoping device 7 and lock box 4 all set up in the freight train outside be convenient for operate and overhaul. The rest of the structure was the same as in example 4.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the content of the present invention.
Claims (10)
1. The device for opening and closing the bottom of the truck is characterized by comprising a bottom plate frame structure and a bottom plate, wherein the bottom plate frame structure is arranged to be fixedly connected to an opening in the bottom of the truck;
a front and rear telescopic device is arranged on one side of the bottom plate frame structure, and a telescopic section of the front and rear telescopic device is arranged to be capable of driving the bottom plate to move back and forth along the bottom plate frame structure;
the bottom plate is provided with an automatic locking device, the automatic locking device comprises a lock cylinder fixed on one side of the bottom plate and a lock tongue matched with the lock cylinder, and the automatic locking device also comprises an elastic device for pressing the lock tongue into the lock cylinder;
one end of the lock tongue is hinged to one side of the bottom plate frame structure, and the other end of the lock tongue is connected with the elastic device; the elastic device is fixed on one side of the bottom plate frame structure; the middle part of spring bolt is equipped with downward arch, the middle part of the flexible section of front and back telescoping device is equipped with the arch that makes progress, downward arch with it is equipped with first gyro wheel to make progress between the arch.
2. The device as claimed in claim 1, wherein the bottom plate frame structure is provided with a second roller, and the bottom plate is connected to the second roller by rolling on the lower surface.
3. The opening and closing device for the bottom of a truck as claimed in claim 1, wherein a rotating shaft is provided below the bottom plate, and the end of the rotating shaft is fixed on the bottom plate frame structure through a bearing; the rotating shaft is provided with a gear, and a rack meshed with the gear is arranged below the bottom plate.
4. The truck bottom opening and closing device according to claim 3, wherein:
the automatic locking device also comprises a lock box which is fixed on the bottom plate frame structure;
the elastic device comprises a pull-up spring and a transmission rod; one end of the pull-up spring is connected to one side of the lock box, the other end of the pull-up spring is rotatably connected to one end of the transmission rod, the other end of the transmission rod is hinged to one end of the lock tongue, the middle of the transmission rod is rotatably connected to one side of the lock box through a pin shaft, and a first rotating wrench is arranged at the end of the pin shaft.
5. The opening and closing device for the bottom of the truck as claimed in claim 4, wherein the end of the telescopic section of the front and rear telescopic devices is provided with a strip-shaped hole; the strip-shaped holes are arranged along the telescopic direction of the telescopic device; one side of the bottom plate is provided with a fixing column which can penetrate through the strip-shaped hole.
6. The device as claimed in claim 5, wherein a limit stop is provided at one side of the lock case to limit the downward pressing limit of the latch.
7. The opening and closing device for the bottom of a truck as claimed in claim 5 or 6, further comprising an auxiliary frame provided at the opening of the bottom of the truck and corresponding to the floor frame structure;
the edge of the bottom plate frame structure is of an L-shaped steel structure, and the L-shaped steel structure is provided with a horizontal edge and a vertical edge; a plurality of first threaded holes are formed in the horizontal edge, and a plurality of second threaded holes corresponding to the first threaded holes are formed in the auxiliary frame; the vertical edge is used for the rotating shaft to pass through; and a second rotary wrench is arranged at the end part of the rotating shaft.
8. The truck bottom opening and closing device according to claim 5 or 6, further comprising a fulcrum frame; the lock cylinder is fixed on one side of the bottom plate through the fulcrum frame; the lock cylinder is fixed at the top of the fulcrum frame; the fixed column is fixed on one side of the fulcrum frame.
9. The truck bottom opening and closing device according to claim 8, further comprising a balance beam; the number of the bottom plates is two, the two bottom plates are horizontally arranged at intervals and are connected through the balance beam; the two ends of the balance beam are fixed on the left side and the right side of the bottom plate frame structure;
the fulcrum frame is arranged at the position of the balance beam between the two bottom plates; the front and rear telescopic devices and the lock box are arranged at the position between the two bottom plates of the bottom plate frame structure.
10. A wagon, wherein the wagon bottom opening and closing device as claimed in any one of claims 1 to 9 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631474.9A CN112208420A (en) | 2019-07-12 | 2019-07-12 | Truck bottom opening and closing device and truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631474.9A CN112208420A (en) | 2019-07-12 | 2019-07-12 | Truck bottom opening and closing device and truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112208420A true CN112208420A (en) | 2021-01-12 |
Family
ID=74048598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910631474.9A Pending CN112208420A (en) | 2019-07-12 | 2019-07-12 | Truck bottom opening and closing device and truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112208420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117068592A (en) * | 2023-10-12 | 2023-11-17 | 长治市潞安合力机械有限责任公司 | Bottom self-unloading structure of coal transporting container |
-
2019
- 2019-07-12 CN CN201910631474.9A patent/CN112208420A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117068592A (en) * | 2023-10-12 | 2023-11-17 | 长治市潞安合力机械有限责任公司 | Bottom self-unloading structure of coal transporting container |
| CN117068592B (en) * | 2023-10-12 | 2023-12-22 | 长治市潞安合力机械有限责任公司 | Bottom self-unloading structure of coal transporting container |
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