CN211617521U - Composite locking device for rear door of dump truck - Google Patents
Composite locking device for rear door of dump truck Download PDFInfo
- Publication number
- CN211617521U CN211617521U CN202020056303.6U CN202020056303U CN211617521U CN 211617521 U CN211617521 U CN 211617521U CN 202020056303 U CN202020056303 U CN 202020056303U CN 211617521 U CN211617521 U CN 211617521U
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- rear door
- fixed
- carriage
- locking device
- dump truck
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Abstract
The utility model discloses a compound locking device of tipper back door, including adjustable the hinge mechanism and hydraulic locking mechanism, upper portion behind the railway carriage is fixed to the hinge mechanism with adjustable, and the back door passes through adjustable the hinge mechanism with the railway carriage and is connected, hydraulic locking mechanism sets up lower part behind the railway carriage, the back door bottom is provided with foraminiferous locking piece, hydraulic locking mechanism can insert or break away from foraminiferous locking piece. The device can improve the reliability of locking of back door, ensures the reliability and the security of vehicle in the transportation, makes the goods not spill hourglass in the transportation.
Description
Technical Field
The utility model relates to a transportation vehicle technical field, concretely relates to compound locking device of tipper back door.
Background
At present, most of dumper backdoor locks adopt a chain type locking form, the position of a pin shaft of the backdoor hinge cannot be adjusted, after a vehicle is used for a period of time, the chain can deform, a sealing rubber strip at the tail of a carriage can age or deform, so that the gap between the backdoor and the carriage is enlarged, the backdoor is not tightly sealed, the phenomenon of cargo leakage can occur in the transportation process of the vehicle, secondary pollution is caused to the environment, particularly, the backdoor needs to be tightly sealed to transport cargos with large moisture such as silt and swill, and the environment pollution is prevented from being leaked.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned technical problem that prior art field exists, the utility model aims to provide a compound locking device of tipper back door can improve the reliability that the back door is locked, ensures reliability and security of vehicle in the transportation, makes the goods do not have in the transportation and spills the hourglass.
The utility model provides a pair of compound locking device of tipper back door, including adjustable the hinge mechanism and hydraulic locking mechanism, upper portion behind the railway carriage is fixed to the hinge mechanism with adjustable, and the back door passes through adjustable the hinge mechanism with the railway carriage and is connected, hydraulic locking mechanism sets up lower part behind the railway carriage, the back door bottom is provided with foraminiferous locking piece, hydraulic locking mechanism can insert or break away from foraminiferous locking piece.
Further, the adjustable hinge mechanism comprises a hinge seat, a front baffle, a rear baffle, an adjusting block and a screw rod, wherein the hinge seat is fixed on the rear upper portion of the carriage, the hinge seat is provided with a long hole, the front baffle and the rear baffle are fixed on the same side of the hinge seat, the adjusting block is positioned between the front baffle and the rear baffle, two ends of the screw rod are respectively connected with the front baffle and the rear baffle, the screw rod penetrates through the lower end of the adjusting block, the upper end of the adjusting block is connected with the hinge seat and the rear door through a pin shaft, and the pin shaft penetrates through the long hole of the hinge seat.
Furthermore, the hinge seats are 2, a rear door connecting plate is fixed at the end part of the rear door, and the rear door connecting plate is arranged between the 2 hinge seats.
Furthermore, the hydraulic locking mechanism comprises a fixed seat, a hydraulic cylinder, a locking bolt and a guide sleeve, the fixed seat and the guide sleeve are fixed on the rear lower portion of the carriage, one end of the hydraulic cylinder is connected with the fixed seat, one end of a piston rod of the hydraulic cylinder is fixedly connected with the locking bolt, and the locking bolt can move along the guide sleeve.
Furthermore, the end part of the locking bolt close to one end of the guide sleeve is wedge-shaped.
Furthermore, the hydraulic locking mechanism sets 2 groups, and is arranged symmetrically along the central axis of the carriage in the width direction.
Furthermore, a limiting device is fixed at the rear lower part of the carriage and is positioned at the outer side of the guide sleeve.
Furthermore, the limiting device comprises two limiting blocks arranged in parallel, square holes are formed in the limiting blocks, and the centers of the square holes and the centers of the guide sleeves are located on the same horizontal line.
Furthermore, a sealing rubber strip is fixed at the rear part of the compartment.
The utility model provides a pair of compound locking device of tipper back door, its beneficial effect is: (1) the hydraulic locking mechanism is adopted to lock the rear door, so that the operation is simple, the locking force is large, the reliability is high, and the rear door can be prevented from jumping upwards in the driving process; (2) the hinge position of the back door and the carriage adopts an adjustable hinge mechanism, the position of the back door can be adjusted according to the condition of the sealing rubber strip, the proper compression degree of the sealing rubber strip is obtained, the sealing rubber strip does not need to be frequently replaced, and the service cycle is long.
Drawings
Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;
fig. 2 is a rear view of an embodiment of the present invention;
FIG. 3 is a schematic view of an adjustable hinge mechanism;
FIG. 4 is a top view of the hydraulic locking mechanism when locked;
fig. 5 is a top view of the hydraulic latch mechanism when released.
The figure is marked with: 1. a carriage; 2. a rear door; 3. an adjustable hinge mechanism; 31. a hinge mount; 32. a front baffle; 33. a tailgate; 34. an adjusting block; 35. a screw; 36. a pin shaft; 4. a hydraulic locking mechanism; 41. a fixed seat; 42. a hydraulic cylinder; 43. locking the bolt; 44. a guide sleeve; 45. a limiting block; 5. a lock block with a hole; 6. a rear door connecting plate; 7. and sealing rubber strips.
Detailed Description
The following describes a composite locking device for a rear door of a dump truck in detail according to an embodiment with reference to the accompanying drawings.
Examples
Referring to fig. 1-5, the composite locking device for the rear door of the dump truck of the embodiment comprises an adjustable hinge mechanism 3 and a hydraulic locking mechanism 4, wherein the adjustable hinge mechanism 3 is fixed at the rear upper part of a truck bed 1 and is provided with 2 groups, the top of a rear door 2 is connected with the truck bed 1 through the adjustable hinge mechanism 3, the hydraulic locking mechanism 4 is arranged at the rear lower part of the truck bed 1, a lock block 5 with holes is arranged at the bottom of the rear door 2, the hydraulic locking mechanism 4 can be inserted into or separated from the lock block 5 with holes to lock or unlock the rear door 2, a sealing rubber strip 7 is fixed at the rear part of the truck bed 1, and the sealing rubber strip 7 is pressed with the rear door 2.
Referring to fig. 3, the adjustable hinge mechanism 3 includes a hinge seat 31, a front baffle 32, a rear baffle 33, an adjusting block 34, and a screw rod 35, the hinge seat 31 is fixed on the rear upper portion of the compartment 1, the hinge seat 31 is provided with a long hole, the front baffle 32 and the rear baffle 33 are fixed on the same side of the hinge seat 31, the adjusting block 34 is located between the front baffle 32 and the rear baffle 33, two ends of the screw rod 35 are respectively connected with the front baffle 32 and the rear baffle 33, the screw rod 35 penetrates through the lower end of the adjusting block 34, the screw rod 35 is in threaded connection with the lower end of the adjusting block 34, the upper end of the adjusting block 34 is connected with the hinge seat 31 and the rear door 2 through a pin shaft 36, the hinge seat 31 is provided with 2 pieces, the rear door connecting plate 6 is fixed on the end of the rear door 2, the rear door connecting plate 6 is arranged between the 2 hinge seats 31, the pin shaft 36 sequentially penetrates through the long, the rear door 2 is connected with the carriage 1. In the vehicle use, joint strip 7 can wear and tear the deformation gradually, leads to the clearance grow between back door 2 and the railway carriage 1, and the accessible is rotatory screw rod 35, drives adjusting block 34 along the motion of screw rod 35 to drive round pin axle 36 seesaw, adjust the relative position of back door 2 and railway carriage 1, obtain suitable joint strip 7 and compress tightly the degree, need not often to change joint strip 7.
Referring to fig. 2, 4, 5, hydraulic locking mechanism 4 sets up 2 groups, and set up along the central axis symmetry of railway carriage 1 width direction, hydraulic locking mechanism 4 includes fixing base 41, pneumatic cylinder 42, locking bolt 43, uide bushing 44, fixing base 41 and uide bushing 44 are fixed in railway carriage 1 back lower part, pneumatic cylinder 42 one end is connected with fixing base 41, pneumatic cylinder 42 piston rod one end and locking bolt 43 fixed connection, drive locking bolt 43 and move along uide bushing 44 when pneumatic cylinder 42 piston rod is flexible, and insert foraminiferous locking piece 5 for locking bolt 43 is convenient, set up the tip that locking bolt 43 is close to uide bushing 44 one end into the wedge.
In addition, when the hydraulic locking mechanism 4 is used for a long time, the gap between the locking bolt 43 and the guide sleeve 44 is increased due to abrasion, the locking bolt 43 can be deflected to cause the locking bolt to be inserted into the perforated lock block 5 smoothly, therefore, the lower part of the rear of the carriage 1 is fixedly provided with the limiting device, the limiting device is positioned on the outer side of the guide sleeve 44, namely, one side away from the hydraulic cylinder 42, the limiting device comprises two limiting blocks 45 which are arranged in parallel, the limiting blocks 45 are provided with square holes, the centers of the square holes and the centers of the guide sleeve 44 are positioned on the same horizontal line, and the perforated lock block 5 is just positioned between the two limiting blocks 45 when the rear door 2 is buckled.
The rear door locking process of the embodiment is as follows: the rear door 2 is closed, the piston rod of the hydraulic cylinder 42 is controlled to extend out to drive the locking bolt 43 to move outwards along the guide sleeve 44, after the locking bolt 43 moves to a certain distance, one end of the wedge-shaped surface of the locking bolt 43 contacts with the perforated lock block 5 at the bottom of the rear door 2, the perforated lock block 5 is pushed towards the direction of the compartment 1, the rear door 2 is locked at the rear part of the compartment 1, and the locking bolt 43 continuously slides outwards to the outermost side limiting block 45.
The back door opening process of this embodiment is: the piston rod of the hydraulic cylinder 42 is controlled to retract to drive the locking bolt 43 to move inwards along the guide sleeve 44, after the locking bolt 43 moves to a certain distance, one end of the wedge-shaped surface of the locking bolt 43 is separated from the lock block 5 with the hole at the bottom of the rear door 2, the piston rod of the hydraulic cylinder 42 continues to retract, the locking bolt 43 is completely retracted into the guide sleeve 44, and the rear door 2 can be opened in a rotating mode through the adjustable hinge mechanism 3.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. The utility model provides a compound locking device of tipper back door which characterized in that: the adjustable articulated mechanism is fixed on the rear upper part of a carriage, the rear door is connected with the carriage through the adjustable articulated mechanism, the hydraulic locking mechanism is arranged on the rear lower part of the carriage, a lock block with holes is arranged at the bottom of the rear door, and the hydraulic locking mechanism can be inserted into or separated from the lock block with holes.
2. The composite locking device for the rear door of the dump truck as claimed in claim 1, wherein: the adjustable hinge mechanism comprises a hinge seat, a front baffle, a rear baffle, an adjusting block and a screw rod, wherein the hinge seat is fixed on the rear upper part of the carriage, the hinge seat is provided with a long hole, the front baffle and the rear baffle are fixed on the same side of the hinge seat, the adjusting block is positioned between the front baffle and the rear baffle, two ends of the screw rod are respectively connected with the front baffle and the rear baffle, the screw rod penetrates through the lower end of the adjusting block, the upper end of the adjusting block is connected with the hinge seat and the rear door through a pin shaft, and the pin shaft penetrates through the long hole of the hinge seat.
3. The composite locking device for the rear door of the dump truck as claimed in claim 2, wherein: the hinge seat sets up 2, back door tip is fixed with the back door connecting plate, the back door connecting plate sets up between 2 hinge seats.
4. The composite locking device for the rear door of the dump truck as claimed in claim 1, wherein: the hydraulic locking mechanism comprises a fixed seat, a hydraulic cylinder, a locking bolt and a guide sleeve, wherein the fixed seat and the guide sleeve are fixed on the rear lower part of the carriage, one end of the hydraulic cylinder is connected with the fixed seat, one end of a piston rod of the hydraulic cylinder is fixedly connected with the locking bolt, and the locking bolt can move along the guide sleeve.
5. The composite locking device for the rear door of the dump truck as claimed in claim 4, wherein: the end part of the locking bolt close to one end of the guide sleeve is wedge-shaped.
6. The composite locking device for the rear door of the dump truck as claimed in claim 4, wherein: the hydraulic locking mechanism is provided with 2 groups and is symmetrically arranged along the central axis of the carriage in the width direction.
7. The composite locking device for the rear door of the dump truck as claimed in claim 4, wherein: and a limiting device is fixed at the rear lower part of the carriage and is positioned at the outer side of the guide sleeve.
8. The composite locking device for the rear door of the dump truck as claimed in claim 7, wherein: the limiting device comprises two limiting blocks which are arranged in parallel, square holes are formed in the limiting blocks, and the centers of the square holes and the centers of the guide sleeves are located on the same horizontal line.
9. The composite locking device for the rear door of the dump truck as claimed in claim 1, wherein: and a sealing rubber strip is fixed at the rear part of the carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020056303.6U CN211617521U (en) | 2020-01-13 | 2020-01-13 | Composite locking device for rear door of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020056303.6U CN211617521U (en) | 2020-01-13 | 2020-01-13 | Composite locking device for rear door of dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211617521U true CN211617521U (en) | 2020-10-02 |
Family
ID=72637136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020056303.6U Active CN211617521U (en) | 2020-01-13 | 2020-01-13 | Composite locking device for rear door of dump truck |
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| Country | Link |
|---|---|
| CN (1) | CN211617521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212015A (en) * | 2022-01-04 | 2022-03-22 | 桂林航天工业学院 | Locking and opening mechanism for rear baffle of dump truck carriage body and using method thereof |
-
2020
- 2020-01-13 CN CN202020056303.6U patent/CN211617521U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212015A (en) * | 2022-01-04 | 2022-03-22 | 桂林航天工业学院 | Locking and opening mechanism for rear baffle of dump truck carriage body and using method thereof |
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