CN105599661A - Automatic locking mechanism for dumper carriage rear door - Google Patents
Automatic locking mechanism for dumper carriage rear door Download PDFInfo
- Publication number
- CN105599661A CN105599661A CN201410590038.9A CN201410590038A CN105599661A CN 105599661 A CN105599661 A CN 105599661A CN 201410590038 A CN201410590038 A CN 201410590038A CN 105599661 A CN105599661 A CN 105599661A
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- CN
- China
- Prior art keywords
- lock hook
- connector
- latch hook
- chain
- automatic locking
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention provides an automatic locking mechanism for a dumper carriage rear door. The mechanism comprises a lock hook and a chain, wherein one end of the chain is connected to the lock hook; the other end is connected to a horizontal beam at the tail part of a sub-frame; the mechanism also comprises a connector and springs; axle holes are formed in both sides of the connector; the springs are disposed on both sides of the lock hook; one segment of each spring stretches out and the segments are clamped at the neck part and the leg part of the lock hook respectively; the lock hook is fixed with the springs via a pin shaft and the connector; a lock hook plate is disposed on the head part of the lock hook; and the connector is fixed on the lower end of a carriage baseplate. The automatic locking mechanism for the dumper carriage rear door provided by the invention is characterized in that the single lock hook is applied; none-synchronous locking does not take place; by automatic retraction of the springs, the dumper carriage rear door can be locked reliably after being closed; requirements for sealing of carriage body loading can be satisfied; the structure is simple; performance is stable; repair is convenient; and a service life is greatly increased.
Description
Technical field
The present invention relates to a kind of automobile bodies, the tight mechanism of especially a kind of self-discharging carriage rear-door automatic locking.
Background technology
Tradition locking device of rear door of dumper is all to adopt double-lock hook structure, two latch hooks are contained in respectively the both sides at back door, this retaining mechanism is after vehicle has been grown service time, there will be the situation of two latch hook distortion, will cause like this two latch hooks to open and lock asynchronous, the tight opposite side of one side chain is not locked, and vehicle can, half of carriage back door plate crimp, cause a hidden trouble to the transportation safety of dumper in the time of fully loaded material.
The retaining mechanism of existing self-discharging vehicle backdoor is the just simple effect that relies on Action of Gravity Field to reach opening and closing conventionally, and reaction is slow, and coupling mechanism force is inadequate, and the time has been grown easy inefficacy.
Summary of the invention
The object of this invention is to provide the tight mechanism of a kind of self-discharging carriage rear-door automatic locking, can solve double-lock hook and easily produce and open closed nonsynchronous problem, and be swift in response, coupling mechanism force is large, long service life and installing easily.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: the tight mechanism of self-discharging carriage rear-door automatic locking, comprise latch hook, chain, one end of chain is connected with latch hook, other one section is connected on subframe afterbody crossbeam, it is characterized in that: also include connector, spring, the both sides of connector are provided with axis hole, spring is arranged on the both sides of latch hook, two springs respectively stretch out one section of neck and shank that is stuck in latch hook, latch hook and spring are fixed together by bearing pin and connector, and the head of latch hook is provided with lock crook plate, and connector is fixed on platform floor lower end.
Improvement to technique scheme: the level height of described subframe afterbody crossbeam is higher than the lower end of the latch hook being connected with chain.
Beneficial effect:
Use the tight mechanism of self-discharging carriage rear-door automatic locking of the present invention, adopt single latch hook, there will not be locking asynchrony phenomenon, the effect that adopts spring to automatically reply can reliably be locked it after dump truck cabin rear door is closed, and ensures the airtight requirement of compartment envelope loading, have simple in structure, stable performance, feature easy to maintenance, be greatly improved service life.
Brief description of the drawings
Fig. 1 is front view of the present invention.
Fig. 2 is upward view of the present invention.
Fig. 3 is structural representation of the present invention.
In figure: lock crook plate 1, latch hook 2, connector 3, spring 4, bearing pin 5, chain 6.
Detailed description of the invention
The tight mechanism of self-discharging carriage rear-door automatic locking of the present invention as shown in Figure 1, Figure 2, Figure 3 shows, comprises lock crook plate 1, latch hook 2, connector 3, spring 4, bearing pin 5, chain 6. Connector 3 is fixed together two springs, latch hook 2 by bearing pin 4, and lock crook plate 1 is welded on latch hook 2 heads, and connector 3 upper ends are welded on base plate lower end. Two springs respectively stretch out one section of neck and shank that is stuck in latch hook 2, and one end of chain 6 is connected with latch hook 2, and other one section is connected on subframe afterbody crossbeam. The level height of subframe afterbody crossbeam is higher than the lower end of the latch hook 2 being connected with chain 6.
Compartment when lifting, by the locking effect of spring 3, is not pressed on lock crook plate on Rear Door, realizes locking, and now chain is in relaxed state. When carriage lifting, base plate rear end moves down, and chain is strained gradually, until latch hook is opened, open at back door. When compartment declines, base plate rear end rises, and chain is lax gradually, and spring automatically replies, and again realizes locking effect, makes back door closure.
Claims (2)
1. the tight mechanism of self-discharging carriage rear-door automatic locking, comprise latch hook, chain, one end of chain is connected with latch hook, and other one section is connected on subframe afterbody crossbeam, it is characterized in that: also include connector, spring, the both sides of connector are provided with axis hole, spring is arranged on the both sides of latch hook, and two springs respectively stretch out one section of neck and shank that is stuck in latch hook, and latch hook and spring are fixed together by bearing pin and connector, the head of latch hook is provided with lock crook plate, and connector is fixed on platform floor lower end.
2. the tight mechanism of self-discharging carriage rear-door automatic locking according to claim 1, is characterized in that: the level height of described subframe afterbody crossbeam is higher than the lower end of the latch hook being connected with chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590038.9A CN105599661A (en) | 2014-10-29 | 2014-10-29 | Automatic locking mechanism for dumper carriage rear door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590038.9A CN105599661A (en) | 2014-10-29 | 2014-10-29 | Automatic locking mechanism for dumper carriage rear door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105599661A true CN105599661A (en) | 2016-05-25 |
Family
ID=55980177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410590038.9A Pending CN105599661A (en) | 2014-10-29 | 2014-10-29 | Automatic locking mechanism for dumper carriage rear door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105599661A (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 |
-
2014
- 2014-10-29 CN CN201410590038.9A patent/CN105599661A/en active Pending
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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160525 |