CN201784508U - Door sheet locking mechanism utilizing self-weight of lock hook for opening door sheet automatically - Google Patents
Door sheet locking mechanism utilizing self-weight of lock hook for opening door sheet automatically Download PDFInfo
- Publication number
- CN201784508U CN201784508U CN2010205215793U CN201020521579U CN201784508U CN 201784508 U CN201784508 U CN 201784508U CN 2010205215793 U CN2010205215793 U CN 2010205215793U CN 201020521579 U CN201020521579 U CN 201020521579U CN 201784508 U CN201784508 U CN 201784508U
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- China
- Prior art keywords
- door
- plate
- latch hook
- chain
- door sheet
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- Expired - Lifetime
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Abstract
The utility model discloses a door sheet locking mechanism utilizing self-weight of a lock hook for opening a door sheet automatically, which comprises the lock hook, a fixed support, a curb chain and a fixed fastener, wherein the center of gravity of the lock hook is connected with one end of the curb chain, the other end of the curb chain is connected with the fixed fastener fixed on a vehicle frame, and the tail end of the lock hook is rotatably connected with the fixed support fixed at the rear end of a carriage floor by using a hinge pin as a pivot. The door sheet locking mechanism is designed reasonably, has simple structure, utilizes self-weight of the lock hook for opening the door sheet automatically when tilting goods and the tensile force of the curb chain for locking the door sheet safely after dumping, thus dispensing with a reset spring, eliminating the defects of the traditional lock hook caused by ineffectiveness of the reset spring, and enabling the safe reliability to be higher.
Description
Technical field
The utility model relates to automobile manufacturing field, realizes the door-plate lockable mechanism that door-plate is opened automatically especially for a kind of latch hook dead weight that relies on the dumping car.
Background technology
Dumping truck when dumping material, need a cover door-plate can open automatically and finish dump in door-plate can self-return lockable mechanism.Traditional door-plate automatic lock locking mechanism as depicted in figs. 1 and 2, comprise door-plate locking seat, latch hook, fixed bearing, pull back spring, chain and fixation fastener, door-plate locking seat is fixed in the door-plate bottom surface, fixed bearing is fixed in the bottom surface, compartment near the Rear Door place, latch hook is connected by bearing pin is rotating with fixed bearing, and chain one end is connected with fixation fastener on being fixed on the car chassis vehicle frame, and the other end is connected with latch hook, one end of pull back spring is connected and fixed bearing, and the other end connects latch hook.When lockable mechanism was in closure state, latch hook relied on the chain pulling force to overcome the elastic force of pull back spring, tightly fastens door-plate locking seat.When dumping goods: the compartment tilts, and the distance between door-plate locking seat and the fixation fastener shortens, and chain unclamps, and latch hook breaks away from door-plate locking seat around the fixed bearing clickwise under the effect of pull back spring, and door-plate is opened automatically; Finish when dumping, the compartment homing, distance becomes big between door-plate locking seat and the fixation fastener, and latch hook overcomes the pull back spring pulling force under the pulling force of chain, around the fixed bearing left-hand revolution, and firm be pressed on the door-plate locking seat door-plate auto-closing.As seen this cover lockable mechanism mainly relies on stretching of pull back spring to realize that Rear Door is opened or closure.In real work because spring aging, the material when perhaps dumping or under steam the dirt that throws away of trailing wheel etc. stick on the pull back spring or the like reason, pull back spring was lost efficacy, cause when automobile dumps goods door-plate not opened and cause door-plate to damage.
The utility model content
The utility model is at the deficiency of existing product, a kind of lockable mechanism that is used on the dumping car is provided, when dumping material, relies on the deadweight of latch hook itself that door-plate is opened automatically, finish the locking door-plate that the pulling force that dumps back dependence chain gets final product safety, simple in structure, safe reliability is higher.
Technical scheme of the present invention is:
A kind of latch hook dead weight that relies on realizes the door-plate lockable mechanism that door-plate is opened automatically, comprise latch hook, fixed bearing, chain and fixation fastener, it is characterized in that, the center of gravity position of described latch hook connects an end of chain, the other end of chain is connected with fixation fastener on being fixed on vehicle frame, and the tail end of latch hook is that fulcrum is connected with the fixed bearing that is fixed on the cabin floor rear end is rotating with the bearing pin.
The gib head of described latch hook chain by tension when door-plate is closed overcomes the lateral surface that the latch hook deadweight fastens door-plate, relies on the deadweight of latch hook and break away from the lateral surface of door-plate when door-plate is opened.
Described latch hook own wt is 8～12kg.
The contact surface of the gib head of described latch hook and door-plate lateral surface is the plane.
Described fixation fastener is installed in the anti-of chassis frame weld together and turns on the carriage.
Technique effect of the present utility model:
The utility model is reasonable in design, simple in structure, by changing the stressed position and the pivot point of latch hook, reached dump material the time rely on that the latch hook deadweight can realize door-plate open, finish the purpose that the pulling force that can rely on chain after dumping can be realized safe locking door-plate automatically, banned pull back spring, eliminated traditional latch hook because the drawback that the inefficacy of pull back spring causes, safe reliability is higher.Concrete, an end of chain is connected with the center of gravity position of latch hook, the other end of chain is connected with fixation fastener on being fixed on vehicle frame, and the tail end with latch hook is connected with the fixed bearing that is fixed on the cabin floor rear end is rotating by bearing pin simultaneously; When lock position, the pulling force of chain directly acts on the center of gravity of latch hook, the tension latch hook, the gib head that makes latch hook withholding on the lateral surface of door-plate tightly, application of force direction was vertical when the contact surface of latch hook and door-plate was opened with door-plate at this moment, improved the traditional locks hook lock and ended direction and the angled design of door-plate application of force direction, made locking more reliable.When automobile dumps material, the compartment clickwise, the distance between the chain two ends shortens, latch hook loses the pulling force of chain, and rotating torque and door-plate thrust that latch hook relies on the latch hook deadweight to provide make latch hook around the fixed bearing clickwise, break away from door-plate, realize opening automatically of door-plate.After automobile is finished unloading, the compartment left-hand revolution, the distance between the chain two ends is elongated, and chain begins pulling force to be provided and to become big gradually to latch hook, and the gravity conter clockwise that makes latch hook overcome self rotates up, and makes on the gib head lateral surface that is pressed in door-plate tightly of latch hook.
Description of drawings
Fig. 1 is the scheme drawing of traditional door-plate lockable mechanism when opening.
Fig. 2 is the traditional door-plate lockable mechanism scheme drawing when closed.
Fig. 3 is the scheme drawing of lockable mechanism of the present utility model when opening.
Fig. 4 is a lockable mechanism of the present utility model scheme drawing when closed.
Reference numeral lists as follows:
1-door-plate locking seat, 2-latch hook, 3-fixed bearing, 4-pull back spring, 5-chain, 6-fixation fastener, 11-latch hook, 12-fixed bearing, 13-chain, 14-fixation fastener, the anti-carriage that turns over of 15-.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Referring to Fig. 3 and Fig. 4, a kind of latch hook dead weight that relies on realizes the door-plate lockable mechanism that door-plate is opened automatically, comprise latch hook 11, fixed bearing 12, chain 13 and fixation fastener 14, the center of gravity position of latch hook 11 connects an end of chain 13, the other end of chain 13 is connected with fixation fastener 14 on being fixed on vehicle frame, and the tail end of latch hook 11 is fulcrum and 12 rotating connections of fixed bearing that are fixed on the cabin floor rear end with the bearing pin.Fixation fastener 14 of the present utility model is installed in the anti-of chassis frame weld together and turns on the carriage 15.When door-plate is closed, the gib head of latch hook overcomes the lateral surface that the latch hook deadweight fastens door-plate by the chain of tension, the contact surface of the gib head of latch hook and door-plate lateral surface is the plane, application of force direction was vertical when the contact surface of latch hook and door-plate was opened with door-plate at this moment, improved the traditional locks hook lock and ended direction and the angled design of door-plate application of force direction, made locking more reliable.When door-plate was opened the inclination goods, chain was lax, and the gib head of latch hook relies on the deadweight of latch hook and breaks away from the lateral surface of door-plate.Latch hook own wt of the present utility model is 8～12kg.
Principle of work of the present utility model: when automobile inclination material, the rear portion, compartment is rotated down around the back hinge in compartment, distance between fixed bearing and the fixation fastener shortens gradually, the pulling force that chain offers latch hook diminishes gradually, no longer provide pulling force to latch hook up to chain, latch hook is under the effect of self gravitation and under the thrust of door-plate, around the fixed bearing clickwise, the gib head of latch hook breaks away from door-plate, and the compartment door-plate is opened; After the automobile unloading is finished, the rear portion, compartment rotates up around the back hinge in compartment, distance between fixed bearing and the fixation fastener is elongated gradually, chain begins pulling force to be provided and to become big gradually to latch hook, make latch hook overcome self gravity left-hand revolution, under the pulling force of chain, on the gib head of the latch hook lateral surface that is pressed in door-plate tightly, application of force direction was vertical when the contact surface of latch hook and door-plate was opened with door-plate at this moment, and locking is more firm.
Should be pointed out that the above specific embodiment can make those skilled in the art more fully understand the invention, but do not limit the present invention in any way creation.Therefore, although this specification sheets and embodiment have been described in detail to the invention,, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the invention, and it all is encompassed in the middle of the protection domain of the invention patent.
Claims (5)
1. one kind relies on the latch hook dead weight to realize the door-plate lockable mechanism that door-plate is opened automatically, comprise latch hook, fixed bearing, chain and fixation fastener, it is characterized in that, the center of gravity position of described latch hook connects an end of chain, the other end of chain is connected with fixation fastener on being fixed on vehicle frame, and the tail end of latch hook is that fulcrum is connected with the fixed bearing that is fixed on the cabin floor rear end is rotating with the bearing pin.
2. dependence latch hook dead weight according to claim 1 realizes the door-plate lockable mechanism that door-plate is opened automatically, it is characterized in that, the gib head of described latch hook chain by tension when door-plate is closed overcomes the lateral surface that the latch hook deadweight fastens door-plate, relies on the deadweight of latch hook and break away from the lateral surface of door-plate when door-plate is opened.
3. dependence latch hook dead weight according to claim 2 realizes the door-plate lockable mechanism that door-plate is opened automatically, it is characterized in that described latch hook own wt is 8～12kg.
4. dependence latch hook dead weight according to claim 2 realizes the door-plate lockable mechanism that door-plate is opened automatically, it is characterized in that the contact surface of the gib head of described latch hook and door-plate lateral surface is the plane.
5. realize the door-plate lockable mechanism that door-plate is opened automatically according to claim 3 or 4 described dependence latch hook dead weights, it is characterized in that described fixation fastener is installed in the anti-of chassis frame weld together and turns on the carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205215793U CN201784508U (en) | 2010-09-07 | 2010-09-07 | Door sheet locking mechanism utilizing self-weight of lock hook for opening door sheet automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205215793U CN201784508U (en) | 2010-09-07 | 2010-09-07 | Door sheet locking mechanism utilizing self-weight of lock hook for opening door sheet automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201784508U true CN201784508U (en) | 2011-04-06 |
Family
ID=43816487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205215793U Expired - Lifetime CN201784508U (en) | 2010-09-07 | 2010-09-07 | Door sheet locking mechanism utilizing self-weight of lock hook for opening door sheet automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201784508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437362A (en) * | 2015-08-12 | 2017-02-22 | 谢亚群 | Windproof hook for rear doors of refrigerator car |
-
2010
- 2010-09-07 CN CN2010205215793U patent/CN201784508U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437362A (en) * | 2015-08-12 | 2017-02-22 | 谢亚群 | Windproof hook for rear doors of refrigerator car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |
|
| CX01 | Expiry of patent term |