CN218021882U - Manual locking and auxiliary opening device for rear door of dump truck - Google Patents
Manual locking and auxiliary opening device for rear door of dump truck Download PDFInfo
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- CN218021882U CN218021882U CN202222602797.5U CN202222602797U CN218021882U CN 218021882 U CN218021882 U CN 218021882U CN 202222602797 U CN202222602797 U CN 202222602797U CN 218021882 U CN218021882 U CN 218021882U
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- wire rope
- pulley
- locking
- steel wire
- manual locking
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Abstract
The utility model provides a manual locking of tipper back door assists opening device, relates to tipper technical field, and technical scheme is: including curb plate, sub vehicle frame and railway carriage back door, the afterbody below of curb plate is provided with the locking mechanism who carries out locking to the railway carriage back door, be connected with wire rope through the fixed beam on the sub vehicle frame, install the pulley on the curb plate, the pulley is located locking mechanism and is close to the oblique top of fixed beam direction, wire rope's one end is through the pulley and fix on locking mechanism. The beneficial effects of this technical scheme are: when the carriage is lifted, the manual lock hook is automatically opened, the purpose of unloading is realized, the problem that a driver gets off to manually operate is solved, manpower is saved, the operation efficiency is improved, and the automatic lifting device has the advantages of being simple in structure, safe, reliable and the like.
Description
Technical Field
The utility model relates to a tipper technical field especially relates to a supplementary opening device of manual locking of tipper back door.
Background
At present, most rear doors of the dump trucks are locked by adopting chain structures, and are mostly matched with manual locking devices for increasing the reliability of locking the rear doors. The chain structure locking can automatically complete the opening and closing actions along with the lifting and falling of the carriage, and the manual locking needs manual operation to open and close the carriage.
Especially, under the condition that the carriage is fully loaded, the opening of the manual locking mechanism becomes more difficult under the extrusion effect of the gravity of goods on the rear door of the carriage, and after the vehicle runs to a destination, a driver needs to get off the vehicle to the side face of the rear part of the vehicle to manually open, so that time and labor are wasted, and the safety is poor.
Disclosure of Invention
The utility model aims at overcoming present railway carriage back door under the squeezing action of goods gravity, opening of manual locking mechanism becomes more difficult, and is more troublesome when opening, produces the not enough of threat to staff's safety, and the supplementary opening device of the manual locking of a tipper back door that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a manual locking auxiliary opening device for a rear door of a dump truck comprises a side plate, an auxiliary frame and a rear door of a truck box, wherein a locking mechanism for locking the rear door of the truck box is arranged below the tail part of the side plate, the auxiliary frame is connected with a steel wire rope through a fixed beam, a pulley is arranged on the side plate, the pulley is positioned obliquely above the locking mechanism in the direction close to the fixed beam, and one end of the steel wire rope passes through the pulley and is fixed on the locking mechanism.
When the carriage is lifted, the pulley moves along the rotating shaft of the bottom plate along with the side plates of the carriage in an arc manner, so that the steel wire rope is pulled, the steel wire rope pulls the locking mechanism, the locking mechanism is separated from the rear door of the carriage, and the rear door of the carriage is automatically opened.
Preferably, the locking mechanism comprises a fixing plate fixed on the side plate, the fixing plate is connected with a manual locking hook through a pin shaft, a clamping groove is formed in the manual locking hook, a clamping shaft is fixed on the side face of the rear door of the carriage, the clamping shaft is located in the clamping groove, a flat hook is fixed on the upper surface of the manual locking hook, and one end of the steel wire rope is connected to the flat hook through a locking ring.
The steel wire rope controls the rotation of the manual locking hook through the locking ring and the flat hook, so that the manual locking hook is separated from the clamping shaft.
Preferably, a return spring is fixed on the side plate, one end of the return spring is connected to the steel wire rope, and the connection position of the return spring on the steel wire rope is located between the pulley and the locking mechanism.
The return spring pulls the steel wire rope to return, so that the manual locking hook can be conveniently locked by an operator again.
Preferably, the distance between the connecting position of the return spring on the steel wire rope and the pin shaft is greater than the turning radius of the manual locking hook.
When the manual latch hook rotates, the manual latch hook is prevented from being abutted to the return spring, and the manual latch hook is prevented from rotating.
Preferably, the distance between the connecting position of the return spring on the steel wire rope and the pulley is larger than the shortening amount of the section of the steel wire rope relative to the initial state after the carriage is lifted to the maximum angle.
To prevent the return spring from interfering with the movement of the wire rope along the pulley.
Preferably, two limiting pressing sheets are fixed on the surface of the pulley, which is far away from the side plate.
The limiting pressing sheet limits the steel wire rope arranged on the pulley, and ensures that the steel wire rope and the locking mechanism move along the pulley track after being separated.
Compared with the prior art, the beneficial effects of the utility model are that: when the carriage is lifted, the manual lock hook is automatically opened, the purpose of unloading is realized, the problem that a driver gets off to manually operate is solved, manpower is saved, the operation efficiency is improved, and the automatic lifting device has the advantages of being simple in structure, safe, reliable and the like.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a manual latch hook according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a pulley according to an embodiment of the present invention;
fig. 4 is a diagram of the movement track of the pulley in the embodiment of the present invention.
In the figure: the device comprises a locking mechanism 1, a side plate 2, an auxiliary frame 3, a rear door of a compartment 4, a pin shaft 101, a fixing plate 102, a manual locking hook 103, a clamping shaft 104, a flat hook 1031, a fixing beam 201, a steel wire rope 202, a pulley 203, a return spring 204 and a spacing pressing sheet 2031.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
Referring to fig. 1-4, a manual locking auxiliary opening device for a rear door of a dump truck comprises a side plate 2, an auxiliary frame 3 and a rear door 4 of a truck box, wherein a locking mechanism 1 for locking the rear door 4 of the truck box is arranged below the tail part of the side plate 2, a pulley 203 is arranged on the side plate 2, the pulley 203 is positioned obliquely above the locking mechanism 1 in the direction close to a fixed beam 201, when the truck box is lifted, the pulley 203 moves in an arc along a rotating shaft of a bottom plate along with the side plate 2 of the truck box, as a semi-arc line in fig. 4, two limiting pressing sheets 2031 are fixed on the surface of the pulley 203 far away from the side plate 2, the limiting pressing sheets 2031 limit a steel wire rope 202 arranged on the pulley 203, the steel wire rope 202 is ensured to move along the pulley 203 after being separated from the locking mechanism 1, the auxiliary frame 3 is connected with the steel wire rope 202 through the fixed beam 201, the auxiliary frame 3 fixes one end of the steel wire rope 202, one end of the steel wire rope 202 passes through the pulley 203 and is fixed on the locking mechanism 1, the steel wire rope 202 can slide on the pulley 203, when the truck box is lifted, the truck box, the pulley 203 moves in an arc along the rotating shaft, the pulley 203, the steel wire rope 202 pulls the locking mechanism 1, so that the rear door is separated from the rear door 4, and the rear door is automatically.
Referring to fig. 1-3, the locking mechanism 1 includes a fixing plate 102 fixed on a side plate, the fixing plate 102 can protect the painted surface on the vehicle body, the fixing plate 102 is connected with a manual latch hook 103 through a pin 101, the manual latch hook 103 rotates through the pin 101, a latch slot is arranged on the manual latch hook 103, a latch shaft 104 is fixed on the side surface of the rear door 4 of the vehicle body, the latch shaft 104 is located in the latch slot, the latch slot and the latch shaft 104 are firmly fixed on the rear door 4 of the vehicle body, a flat hook 1031 is fixed on the upper surface of the manual latch hook 103, one end of a steel wire rope 202 is connected to the flat hook 1031 through a lock ring, the tail portion of the flat hook 1031 is convenient to release the lock ring at the tail portion of the steel wire rope, a return spring 204 is fixed on the side plate, one end of the return spring 204 is connected to the steel wire rope 202, the vehicle body is pulled to return when falling back, the connecting position of the return spring 204 on the steel wire rope 202 is located between the pulley 203 and the locking mechanism, the length between the steel wire rope 202 and the fixed pulley 203 is greater than the length between the fixed pulley 203 and the manual locking hook 103 to ensure that the manual locking hook can be opened at the initial lifting, the distance between the connecting position of the return spring 204 on the steel wire rope 202 and the pin shaft 101 is greater than the turning radius of the manual locking hook 103, the distance between the connecting position of the return spring 204 on the steel wire rope 202 and the pulley 203 is greater than the shortening amount of the steel wire rope 202 relative to the initial state after the carriage is lifted to the maximum angle, so as to prevent the return spring 204 from interfering the movement of the steel wire rope 202 along the pulley 203, and as shown in fig. 4, the dashed line connecting the steel wire rope 202 with the pulley 201 and the steel wire rope 203 is triangular.
When the carriage is lifted, the pulley 203 moves in an arc along the rotating shaft of the bottom plate along with the side plates 2 of the carriage, so that the steel wire rope 202 is pulled, the section of the steel wire rope 202 from the pulley 203 to the fixed beam 201 is extended, and the section of the steel wire rope 202 from the pulley 203 to the manual latch hook 103 is shortened. The lock ring on the wire rope 202 moves the flat hook 1031 on the manual lock hook 103 to realize the automatic opening of the manual lock hook 103. From the cosine theorem we can obtain: the motion speed of the extension section of the steel wire rope 202 is greater than that of the shortening section, and the steel wire rope 202 is a whole, so that the manual locking hook 103 is opened by acceleration when being stressed, rather than being opened at a constant speed. After the manual locking hook 103 is opened, the manual locking hook is separated from a locking ring on the steel wire rope 202, and the locking ring end of the steel wire rope 202 moves upwards along the pulley 203 until the compartment is lifted to the maximum angle. When the carriage falls back, under the action of the return spring 204, the steel wire rope 202 descends gradually along the track of the pulley 203, so that an operator can conveniently lock the rear door of the carriage again in an empty state and hang the locking ring of the steel wire rope 202.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a manual locking of tipper back door assists opening device which characterized in that: including curb plate (2), sub vehicle frame (3) and railway carriage back door (4), the afterbody below of curb plate (2) is provided with locking mechanism (1) of locking railway carriage back door (4), be connected with wire rope (202) through fixed beam (201) on sub vehicle frame (3), install pulley (203) on curb plate (2), pulley (203) are located locking mechanism (1) and are close to the oblique top of fixed beam (201) direction, the one end of wire rope (202) is through pulley (203) and fix on locking mechanism (1).
2. The manual locking auxiliary opening device for the rear door of the dump truck as claimed in claim 1, wherein: the locking mechanism (1) comprises a fixing plate (102) fixed on a side plate, the fixing plate (102) is connected with a manual locking hook (103) through a pin shaft (101), a clamping groove is formed in the manual locking hook (103), a clamping shaft (104) is fixed on the side face of the trunk back door (4), the clamping shaft (104) is located in the clamping groove, a flat hook (1031) is fixed on the upper surface of the manual locking hook (103), and the steel wire rope (202) is connected to the flat hook (1031) through the locking ring.
3. The manual locking and auxiliary opening device for the rear door of the dump truck as claimed in claim 1, characterized in that: a return spring (204) is fixed on the side plate (2), one end of the return spring (204) is connected to the steel wire rope (202), and the connection position of the return spring (204) on the steel wire rope (202) is located between the pulley (203) and the locking mechanism.
4. The manual locking auxiliary opening device for the rear door of the dump truck as claimed in claim 3, wherein: the distance between the connecting position of the return spring (204) on the steel wire rope (202) and the pin shaft (101) is larger than the turning radius of the manual locking hook (103).
5. The manual locking auxiliary opening device for the rear door of the dump truck as claimed in claim 3, wherein: the distance between the connecting position of the return spring (204) on the steel wire rope (202) and the pulley (203) is larger than the shortening of the steel wire rope (202) relative to the initial state after the carriage is lifted to the maximum angle.
6. The manual locking auxiliary opening device for the rear door of the dump truck as claimed in claim 1, wherein: two limiting pressing sheets (2031) are fixed on the surface of the pulley (203) far away from the side plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222602797.5U CN218021882U (en) | 2022-09-30 | 2022-09-30 | Manual locking and auxiliary opening device for rear door of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222602797.5U CN218021882U (en) | 2022-09-30 | 2022-09-30 | Manual locking and auxiliary opening device for rear door of dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218021882U true CN218021882U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222602797.5U Active CN218021882U (en) | 2022-09-30 | 2022-09-30 | Manual locking and auxiliary opening device for rear door of dump truck |
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| CN (1) | CN218021882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116853300A (en) * | 2023-06-12 | 2023-10-10 | 山东黄金归来庄矿业有限公司 | A waste conveying device for mine mining |
-
2022
- 2022-09-30 CN CN202222602797.5U patent/CN218021882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116853300A (en) * | 2023-06-12 | 2023-10-10 | 山东黄金归来庄矿业有限公司 | A waste conveying device for mine mining |
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