CN201841605U - Self-locking mechanism of discharge chute rotary limiting handle of transit mixing truck - Google Patents
Self-locking mechanism of discharge chute rotary limiting handle of transit mixing truck Download PDFInfo
- Publication number
- CN201841605U CN201841605U CN2010205969057U CN201020596905U CN201841605U CN 201841605 U CN201841605 U CN 201841605U CN 2010205969057 U CN2010205969057 U CN 2010205969057U CN 201020596905 U CN201020596905 U CN 201020596905U CN 201841605 U CN201841605 U CN 201841605U
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- China
- Prior art keywords
- helical spring
- blow tank
- handle
- self
- push rod
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a self-locking mechanism of a discharge chute rotary limiting handle of a transit mixing truck. A mounting hole matching with a helical spring is arranged on a discharge chute rotary support shaft. A mandril sleeve is welded on the discharge chute rotary support shaft, and the center line of the mandril sleeve is ensured to be aligned with the center line of the mounting hole. One end of a fixed plate is welded on the discharge chute rotary support shaft, and the other end is connected with the end part of a limiting handle. The helical spring is installed in the mounting hole of the discharge chute rotary support shaft, the pretightening force of the helical spring is adjusted by a set screw at one end of the helical spring, and the other end of the helical spring is contacted with a mandril. The mandril is installed in the mandril sleeve, one end of the mandril is contacted with the helical spring, and the other end of the mandril is contacted with one end of the limiting handle. The utility model enables the self-locking of the limiting handle to avoid the free falling-back of the limiting handle, and ensures that the limiting handle can be fixed at an altitude state after being lifted up.
Description
Technical field
The utility model uses the self-locking mechanism on concrete mixing and transporting car blow tank rotary stopper handle, and when spacing handle lifted, the self-locking mechanism effect made blow tank more convenient easy-to-use when doing spinning movement.
Background technology
General in the market blow tank rotary stopper handle does not have self-locking mechanism, when blow tank need be done spinning movement, need manually buttress spacing handle, drops in the stopper slot inconvenient operation to avoid blow tank spacing handle of when rotation.And damage the spacing handle of blow tank easily.
The utility model content
The purpose of this utility model is to provide a kind of self-locking mechanism of concrete mixing and transporting car blow tank rotary stopper handle, and after spacing handle lifted, self-locking mechanism can be fixed in a high position, falls automatically to avoid it.
The technical solution that realizes the utility model purpose is: a kind of self-locking mechanism that is used for concrete mixing and transporting car blow tank rotary stopper handle, comprise blow tank rotation back shaft, holding screw, helical spring, top stem casing, push rod, fixed head and spacing handle, on blow tank rotation back shaft, offer one with the supporting installing hole of helical spring, top stem casing is welded on the blow tank rotation back shaft, and the center line of top stem casing is alignd with the center line of installing hole, fixed head one end is welded on the blow tank rotation back shaft, and the other end is connected with spacing handle end; Described helical spring is installed in the installing hole of blow tank rotation back shaft, this helical spring end pretightning force of holding screw adjustable screw spring, this helical spring other end contacts with push rod, this push rod is installed in the top stem casing, one end of push rod contacts with helical spring, and the other end of push rod contacts with an end of spacing handle.
The utility model compared with prior art, its remarkable advantage: do when spacing handle and to lift when motion, the cup head of spacing handle and the cup head of push rod are in contact with one another, and make push rod produce displacement, at this moment the helical spring pressurized; When unclamping spacing handle, helical spring relies on the elastic force of self to withstand push rod, makes the cup head of push rod withstand the cup head of spacing handle, makes spacing handle produce self-locking, freely falls reduction operator's labour intensity after rise to avoid spacing handle.And the part that the utility model increases on the basis of original mechanism is few, and the difficulty of processing of part is low, good manufacturability and with low cost.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Accompanying drawing is the structural representation of the self-locking mechanism of the utility model concrete mixing and transporting car blow tank rotary stopper handle.
The specific embodiment
In conjunction with the accompanying drawings, the utility model is used for the self-locking mechanism of concrete mixing and transporting car blow tank rotary stopper handle, on blow tank rotation back shaft 1, bore one with the supporting installing hole of helical spring 3, top stem casing 4 is welded on the blow tank rotation back shaft 1, and the center line of top stem casing 4 is alignd with the center line of installing hole, helical spring 3 is installed in the installing hole of blow tank rotation back shaft 1, one end of helical spring 3 pretightning force of holding screw 2 adjustable screw springs 3, the other end of helical spring 3 has a push rod 5, push rod 5 ends are cup head, and push rod 5 is installed in the top stem casing 4.Fixed head 6 is two, and an end all is welded on the blow tank rotation back shaft 1, and handle 7 ends are movably connected between two fixed head 6 other ends, and spacing dimension is identical with spacing handle 7 end size.Spacing handle 7 usefulness bearing pins are installed in the installing hole on the fixed head 6, one end of spacing handle 7 is a cup head, do when spacing handle 7 and to lift when action, the first end of the semicircle of spacing handle 7 withstands the first end of semicircle of push rod 5, push rod 5 is moved in top stem casing 4, compression helical spring 3, after spacing handle 7 is raised to certain altitude, unclamp spacing handle 7, helical spring 3 relies on the elastic force of self to withstand push rod 5, the cup head of push rod 5 withstands the cup head of spacing handle 7, makes spacing handle 7 produce self-locking, makes spacing handle 7 can be fixed on high-end trim after lifting.
Claims (3)
1. self-locking mechanism that is used for concrete mixing and transporting car blow tank rotary stopper handle, it is characterized in that comprising blow tank rotation back shaft [1], holding screw [2], helical spring [3], top stem casing [4], push rod [5], fixed head [6] and spacing handle [7], on blow tank rotation back shaft [1], offer one with the supporting installing hole of helical spring [3], top stem casing [4] is welded on the blow tank rotation back shaft [1], and the center line of top stem casing [4] is alignd with the center line of installing hole, fixed head [6] one ends are welded on the blow tank rotation back shaft [1], and the other end is connected with spacing handle [7] end; Described helical spring [3] is installed in the installing hole of blow tank rotation back shaft [1], one end of this helical spring [3] pretightning force of holding screw [2] adjustable screw spring [3], the other end of this helical spring [3] contacts with push rod [5], this push rod [5] is installed in the top stem casing [4], one end of push rod [5] contacts with helical spring [3], and the other end of push rod [5] contacts with an end of spacing handle [7].
2. the self-locking mechanism of concrete mixing and transporting car blow tank rotary stopper handle according to claim 1, it is characterized in that fixed head [6] is two, one end all is welded on the blow tank rotation back shaft [1], handle [7] end is movably connected between two fixed heads [6] other end, and spacing dimension is identical with spacing handle [7] end size.
3. the self-locking mechanism of concrete mixing and transporting car blow tank rotary stopper handle according to claim 1 is characterized in that push rod [5] end and the contacted end of spacing handle [4] are cup head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205969057U CN201841605U (en) | 2010-11-09 | 2010-11-09 | Self-locking mechanism of discharge chute rotary limiting handle of transit mixing truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205969057U CN201841605U (en) | 2010-11-09 | 2010-11-09 | Self-locking mechanism of discharge chute rotary limiting handle of transit mixing truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201841605U true CN201841605U (en) | 2011-05-25 |
Family
ID=44036509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205969057U Expired - Fee Related CN201841605U (en) | 2010-11-09 | 2010-11-09 | Self-locking mechanism of discharge chute rotary limiting handle of transit mixing truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201841605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416427A (en) * | 2011-09-22 | 2012-04-18 | 宁波锦伟标准件有限公司 | Large-scale automatic nut tapping machine |
-
2010
- 2010-11-09 CN CN2010205969057U patent/CN201841605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416427A (en) * | 2011-09-22 | 2012-04-18 | 宁波锦伟标准件有限公司 | Large-scale automatic nut tapping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20181109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |