CN209725322U - Locking structure - Google Patents
Locking structure Download PDFInfo
- Publication number
- CN209725322U CN209725322U CN201920238560.9U CN201920238560U CN209725322U CN 209725322 U CN209725322 U CN 209725322U CN 201920238560 U CN201920238560 U CN 201920238560U CN 209725322 U CN209725322 U CN 209725322U
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- CN
- China
- Prior art keywords
- plectrum
- valve seat
- locking structure
- torsional spring
- standard shaft
- 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.)
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Abstract
The utility model relates to a kind of locking structure, solve the problems, such as that torsional spring installation is difficult, the plectrum service life is short.Locking structure includes valve seat and the plectrum that rotates for drive link relative to the valve seat, the valve seat includes bottom plate and two blocks of side plates being arranged on the bottom plate, every block of side plate is equipped with limit hole, shaft there are two being set on the plectrum, each shaft is inserted into corresponding limit hole, so that the plectrum and the valve seat are rotatablely connected, the locking structure further includes torsional spring, one of them of two shafts is standard shaft, the axial length of limit hole described in the axial length > of the standard shaft, the torsional spring is socketed on the part that the standard shaft is located on the outside of the valve seat, a wherein torque arm for the torsional spring is arranged on the valve seat, another torque arm of the torsional spring is arranged on the standard shaft and for driving the plectrum to rotate relative to the valve seat.
Description
Technical field
The utility model relates to a kind of locking structures.
Background technique
Locking structure (specific structure can refer to the utility model patent that notification number is CN206830892) includes valve seat, dials
Piece, temperature-sensing element and torsional spring, plectrum and valve seat are rotatablely connected, and one end of torsional spring is arranged on valve seat, the torsional spring other end with described group
Piece connects and plectrum is driven to offset with temperature-sensing element.
Existing plectrum is equipped with shaft, and valve seat is equipped with axis hole, and shaft is inserted into axis hole, to realize that plectrum turns around valve seat
It is dynamic.One of them of two shafts is standard shaft, and torsional spring is socketed in position of the pedestal between plectrum lateral wall and valve seat inner sidewall
It sets.
However, existing locking structure has the shortcomings that following two: 1, the standard shaft of plectrum is easily-deformable；Since standard shaft needs to pacify
Torsional spring is filled, therefore, side plate interior sides face and plectrum are located at the spacing distance > 7mm between the lateral surface of standard shaft side, when in side plate
When side and plectrum are located at the spacing distance > 7mm between the lateral surface of standard shaft side, the axial length needs of standard shaft are greater than
7mm, it means that the center of gravity of piece is partial to far from its side for being located at standard shaft, in the piece course of work, the standard shaft side of piece
Easy stress deformation.2, torsional spring needs can be just mounted on piece and seat by specific purpose tool；Due to side plate interior sides face and plectrum position
Spacing distance < 12mm between the lateral surface of standard shaft side, therefore, torsional spring piece torque arm installation it is present it is upper after, torsional spring it is another
A piece torque arm needs just be mounted on piece by specific purpose tool.
Utility model content
Problem to be solved in the utility model is just to provide a kind of locking structure, increases the service life of plectrum, reduces torsional spring
Installation difficulty.
To solve the above problems, the utility model provides the following technical solutions:
Locking structure includes valve seat and the plectrum that rotates for drive link relative to the valve seat, and the valve seat includes bottom plate
The side plate being arranged on the bottom plate with two pieces, every block of side plate are equipped with limit hole, set that there are two shafts on the plectrum, each
Shaft is inserted into corresponding limit hole, so that the plectrum and the valve seat are rotatablely connected, the locking structure further includes
Torsional spring, one of them of two shafts are standard shaft, the axial length of limit hole described in the axial length > of the standard shaft, the torsion
Spring is socketed on the part that the standard shaft is located on the outside of the valve seat, and a wherein torque arm for the torsional spring is arranged in the valve seat
On, another torque arm of the torsional spring is arranged on the standard shaft and for driving the plectrum to rotate relative to the valve seat.
In the utility model, the axial length of the axial length > limit hole of standard shaft, this structure makes at least partly standard shaft
It extends to outside valve seat, to realize that torsional spring is socketed on the part that standard shaft is located on the outside of valve seat.It is located at valve when torsional spring is socketed in standard shaft
When on the part in seat outside, the operating space of palm is big, to facilitate palm to come into full contact with torsional spring.It is designed in this way, the peace of torsional spring
Dress difficulty will be reduced, and be achieved in a manner of making to install torsional spring manually.
In addition, when torsional spring is socketed on the part that standard shaft is located on the outside of valve seat, on the outside of block inboard side and the plectrum
The gap without being preserved for installation torsional spring between face；It means that plectrum can be heavy to reduce its by changing structure
The heart with respect to central axis offset distance so that the driving force that two shafts of plectrum are subject to is substantially the same.It is designed in this way, standard shaft occurs
The probability of bending will be reduced, this can increase the service life of plectrum to a certain extent.
Further, the installation that the standard shaft is equipped with for limiting a torsional spring wherein torque arm installation site is logical
Road.Different standard shafts can be effectively ensured by the twisting resistance being substantially the same in the presence of installation passage.
Further, the installation passage is to be recessed inwardly to be formed by groove by the standard shaft lateral surface, the torsional spring
The clamping of wherein torque arm in the groove.This structure be convenient for for torsional spring being mounted on standard shaft and convenient for by torsional spring from base
It is removed on axis.
Further, the locking structure further includes two axle sleeves, and each axle sleeve is plugged in corresponding limit hole,
The axle sleeve is equipped with axis hole, and each shaft is inserted into corresponding axis hole.Axle sleeve can be ground to avoid due to limit hole
Plectrum installation site shifts caused by damage.
Further, the inside of axle sleeve block with outward extension, the block lateral surface and the side plate
Medial surface is corresponding, and the medial surface of the block is corresponding with the lateral surface of the plectrum.It is designed in this way, it is possible to reduce side plate interior sides face
Abrasion.
Further, the block is annular retaining ring, and the medial surface of the annular retaining ring and the medial surface of the axle sleeve are flat
Together.Annular retaining ring can prevent plectrum occur in opposite valve seat rotation process movement (" movement " refers to plectrum along base
The axial direction of axis moves).
Further, the gap L T.LT.LT 5mm between the block inboard side and the plectrum lateral surface；Or, in the block
Side is fitted on the plectrum lateral surface.It is designed in this way, increases the non-deformability of shaft.
Further, the axle sleeve and the limit hole are interference fitted.This structure increases axle sleeve and moves axially along limit hole
Difficulty.
Further, the side plate is equipped with the placed channel for limiting another torque arm of the torsional spring, in valve seat
In short transverse, the placed channel is located at below the installation passage, also, the direction that opens up of the placed channel is different from
The installation passage opens up direction；Or, the placed channel is located in the installation passage in the short transverse of valve seat
Side, also, the placed channel open up that direction is different from the installation passage open up direction；Or, in the height side of valve seat
Upwards, the placed channel and the installation passage are contour, also, the direction that opens up of the placed channel is different from the installation
Channel opens up direction.
Firstly, placed channel open up that direction is different from installation passage open up direction, this structure helps to increase torsional spring
With the bonding strength of plectrum and valve seat, avoiding plectrum, there is a phenomenon where torsional springs to fail during rotation.Secondly, in valve seat
In short transverse, placed channel position changes relative to the height and position of installation passage can make the same torsional spring be suitable for turning round
On the different a variety of plectrums of power demand.
Further, the plectrum is equipped with the escape groove for avoiding connecting rod, and the locking structure further includes fixed plate,
The fixed plate is arranged on the side plate, and the fixed plate includes the extended segment extended to outside the valve seat, the extended segment
It is equipped with clamping portion, in the plectrum working condition, the wedging position is below the plectrum, also, the clamping portion
Projection in the horizontal plane is located at the plectrum outside the projection of horizontal plane.The presence of extended segment, so that fire-preventing check valve is in room
Rapid operation in the case where interior kindling.The projection of clamping portion in the horizontal plane is located at plectrum outside the projection of horizontal plane, this structure
Facilitate check plate (check plate for connect plectrum and fixed plate) rotation, with reduce check plate and shackle portion from difficulty.
Detailed description of the invention
Fig. 1 is the perspective view of locking structure in the preferred embodiment in the utility model；
Fig. 2 is the perspective view of valve seat in the preferred embodiment in the utility model；
Fig. 3 is the side view of locking structure in the preferred embodiment in the utility model；
Fig. 4 is the cross-sectional view in Fig. 3 at A-A；
Fig. 5 is the top view of locking structure in the preferred embodiment in the utility model；
Fig. 6 is the cross-sectional view in Fig. 5 at B-B.
Specific embodiment
The technical solution of the utility model embodiment is explained below with reference to the attached drawing of the utility model embodiment and
Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's obtained other embodiments without making creative work, belong to the utility model
Protection scope.
Referring to fig. 2, Fig. 3 and Fig. 4, locking structure include valve seat 1 and for drive link opposite valve seat 1 rotate plectrum 2,
Valve seat 1 includes bottom plate 11 and two blocks of side plates 12 being arranged on bottom plate 11, and every block of side plate 12 is equipped with limit hole 121, on plectrum 2
If each shaft 20 is inserted into corresponding limit hole 121 there are two shaft 20, so that plectrum 2 and valve seat 1 are rotatablely connected.
Referring to Fig. 1 and Fig. 4, difference from prior art is: the locking structure of the present embodiment further includes torsional spring 3, and two
One of them of a shaft 20 is standard shaft 21, and the axial length of standard shaft 21 is D1, axial length D2, the D1 > D2 of limit hole 121；
Torsional spring 3 is socketed in standard shaft 21 and is located on the part in 1 outside of valve seat, and a wherein torque arm for torsional spring 3 is arranged on valve seat 1, torsional spring 3
Another torque arm is arranged on standard shaft 21 and for driving 2 opposite valve seat 1 of plectrum to rotate.
Referring to Fig. 1, standard shaft 21 is equipped with the installation passage for limiting the wherein torque arm installation site of torsional spring 3, specifically
: installation passage is to be recessed inwardly to be formed by groove 211 by 21 lateral surface of standard shaft, and a wherein torque arm for torsional spring 3 is connected to
In groove 211.It is designed in this way, groove 211 can be used to limit the installation site of a wherein torque arm for torsional spring 3, groove 211
It is again convenient that a wherein torque arm for torsional spring 3 is installed on plectrum 2 in a manual fashion.In the other embodiments of the utility model
In, installation passage can make the hole being provided on standard shaft, and installation passage is also possible to annular slot.
Referring to fig. 4, the locking structure of the present embodiment further includes two axle sleeves 4, and each axle sleeve 4 is plugged on corresponding limit
In the hole 121 of position, axle sleeve 4 is equipped with axis hole 41, and each shaft 20 is inserted into corresponding axis hole 41.
From fig. 4, it can be seen that the inside of axle sleeve 4 block 42 with outward extension, 42 lateral surface 422 of block and side plate 12
Medial surface 122 it is corresponding, the medial surface 421 of block 42 and the lateral surface 22 of plectrum 2 are corresponding.
In the present embodiment, the block 42 is annular retaining ring, and the medial surface 421 of annular retaining ring and the medial surface of axle sleeve 4 are flat
Together.It means that annular retaining ring can be formed by 4 outward flanging of axle sleeve, or, the inside of axle sleeve 4 is arranged in annular retaining ring.
Preferably, axle sleeve 4 and limit hole 121 are interference fitted.
Gap L T.LT.LT 5mm in the present embodiment, between 2 lateral surface 22 of 42 medial surface 421 of block and plectrum；Or, in block 42
Side 421 is fitted on 2 lateral surface 22 of plectrum.
The side plate 12 of the present embodiment is equipped with placed channel for limiting 3 another torque arm of torsional spring, and placed channel can be with
It is the slot being arranged on side plate 12, placed channel is also possible to the hole being arranged on side plate 12.In the short transverse of valve seat 1,
Placed channel is located at below installation passage, also, placed channel open up that direction is different from installation passage open up direction；Or,
In the short transverse of valve seat 1, placed channel is located above installation passage, also, the direction that opens up of placed channel is different from peace
Dress channel opens up direction；Or, placed channel is contour with installation passage in the short transverse of valve seat 1, also, placed channel
Open up that direction is different from installation passage open up direction.
Referring to Fig. 1, Fig. 5 and Fig. 6, the plectrum 2 of the present embodiment is equipped with the escape groove 23 for avoiding connecting rod, locking structure
It further include fixed plate 5, fixed plate 5 is arranged on side plate 12, and fixed plate 5 includes extending to the extended segment 51 outside valve seat 1, extended segment
51 are equipped with clamping portion 511, and in 2 working condition of plectrum, (state of the plectrum 2 in Fig. 1, Fig. 5 and Fig. 6 is the work of plectrum 2
State), clamping portion 511 is located at 2 lower section of plectrum, also, the projection of clamping portion 511 in the horizontal plane is located at plectrum 2 in horizontal plane
Projection outside.
Preferably, the clamping portion 511 is card slot.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, those skilled in the art should be understood that the utility model includes but is not limited to attached drawing and specific embodiment above
Described in content.The modification of any function and structure principle without departing from the utility model is intended to be included in claims
In range.
Claims (10)
1. locking structure, including valve seat and the plectrum rotated for drive link relative to the valve seat, the valve seat includes bottom plate
The side plate being arranged on the bottom plate with two pieces, every block of side plate are equipped with limit hole, set that there are two shafts on the plectrum, each
Shaft is inserted into corresponding limit hole, so that the plectrum and the valve seat are rotatablely connected, which is characterized in that the locking
Structure further includes torsional spring, and one of them of two shafts is standard shaft, the axial direction of limit hole described in the axial length > of the standard shaft
Length, the torsional spring are socketed on the part that the standard shaft is located on the outside of the valve seat, and a wherein torque arm for the torsional spring is set
It sets on the valve seat, another torque arm of the torsional spring is arranged on the standard shaft and for driving the relatively described valve of the plectrum
Seat rotation.
2. locking structure as described in claim 1, which is characterized in that the standard shaft is equipped with for limiting the torsional spring wherein
The installation passage of a piece torque arm installation site.
3. locking structure as claimed in claim 2, which is characterized in that the installation passage is by inward-facing on the outside of the standard shaft
Recess is formed by groove, and a wherein torque arm clamping for the torsional spring is in the groove.
4. locking structure as described in claim 1, which is characterized in that the locking structure further includes two axle sleeves, each axis
Set is plugged in corresponding limit hole, and the axle sleeve is equipped with axis hole, and each shaft is inserted into corresponding axis hole.
5. locking structure as claimed in claim 4, which is characterized in that the inside of axle sleeve block with outward extension,
The block lateral surface is corresponding with the medial surface of the side plate, and the medial surface of the block is corresponding with the lateral surface of the plectrum.
6. locking structure as claimed in claim 5, which is characterized in that the block is annular retaining ring, the annular retaining ring
Medial surface is concordant with the medial surface of the axle sleeve.
7. locking structure as claimed in claim 5, which is characterized in that between the block inboard side and the plectrum lateral surface
Gap L T.LT.LT 5mm；Or, the block inboard side is fitted on the plectrum lateral surface.
8. locking structure as claimed in claim 4, which is characterized in that the axle sleeve and the limit hole are interference fitted.
9. locking structure as claimed in claim 2, which is characterized in that the side plate is equipped with another for limiting the torsional spring
The placed channel of root torque arm, in the short transverse of valve seat, the placed channel is located at below the installation passage, also, institute
State placed channel open up that direction is different from the installation passage open up direction；Or, in the short transverse of valve seat, it is described fixed
Bit port is located above the installation passage, also, the direction that opens up of the placed channel is different from opening for the installation passage
Set direction；Or, the placed channel and the installation passage are contour, also, the placed channel in the short transverse of valve seat
Open up that direction is different from the installation passage open up direction.
10. locking structure as described in claim 1, which is characterized in that the plectrum is equipped with the evacuation for avoiding connecting rod
Slot, the locking structure further include fixed plate, and the fixed plate is arranged on the side plate, and the fixed plate includes extending to institute
The extended segment outside valve seat is stated, the extended segment is equipped with clamping portion, and in the plectrum working condition, the wedging position is in institute
It states below plectrum, also, the projection of the clamping portion in the horizontal plane is located at the plectrum outside the projection of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920238560.9U CN209725322U (en) | 2019-02-25 | 2019-02-25 | Locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920238560.9U CN209725322U (en) | 2019-02-25 | 2019-02-25 | Locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209725322U true CN209725322U (en) | 2019-12-03 |
Family
ID=68684016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920238560.9U Active CN209725322U (en) | 2019-02-25 | 2019-02-25 | Locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209725322U (en) |
-
2019
- 2019-02-25 CN CN201920238560.9U patent/CN209725322U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: Mei Hui Contract record no.: X2021990000191 Denomination of utility model: Locking structure Granted publication date: 20191203 License type: Exclusive License Record date: 20210331 |
|
| EE01 | Entry into force of recordation of patent licensing contract |