CN209509759U - A kind of door latch structure - Google Patents
A kind of door latch structure Download PDFInfo
- Publication number
- CN209509759U CN209509759U CN201822060326.XU CN201822060326U CN209509759U CN 209509759 U CN209509759 U CN 209509759U CN 201822060326 U CN201822060326 U CN 201822060326U CN 209509759 U CN209509759 U CN 209509759U
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- pin
- microswitch
- fixed bracket
- eccentric wheel
- hole
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Abstract
The utility model discloses a kind of door latch structure, including fixed bracket, is equipped with motor, microswitch, pin-type knocker and eccentric wheel on fixed bracket；Motor, eccentric wheel are separately mounted to support bracket fastened two sides, motor is equipped with rotary shaft, rotary shaft cooperates after passing through fixed bracket with the mounting hole on eccentric wheel, and the deflection wheel on eccentric wheel is mounted on pin-type door and buckles, and fixation hole of the bottom of pin-type knocker on fixed bracket slides up and down；Microswitch is mounted on fixed bracket and is located at the ipsilateral of eccentric wheel installation, the bottom of microswitch is equipped with feeler point, when pin-type knocker is moved to the top, feeler point is touched at the top of pin-type knocker, it is recessed feeler point inside microswitch, the two connecting terminals generation for controlling microswitch is logical or disconnected.The door latch structure of the utility model is simple, and low processing cost, mechanism is reliable, and failure rate is low, suitable for the doors and windows in each field.
Description
Technical field
The utility model relates to a kind of door latch structures, belong to field of switch equipment.
Background technique
Currently, oven progresses into huge numbers of families, especially automatically cleaning oven as common electric equipment products, can roast
While, also subsidiary high-temperature self-cleaning function.Peace because self-cleaning oven cavity temperature is very high, when to guarantee using self-cleaning function
Entirely, user need to be scalded to avoid door is opened by mistake by lock for oven door.The door lock of present automatically cleaning oven is five method eight, knot
Structure is sufficiently complex, and part is also more, and high failure rate, the service life is short, and cost occupies height.In addition, part door lock can be located in off-position
In opening state, cause high temperature roaster door that can open, causes security risk to user.
Summary of the invention
In view of the above-mentioned problems of the prior art, the utility model provides a kind of door latch structure, structure is simple, at low cost
Honest and clean, mechanism is reliable, and failure rate is low.
To achieve the goals above, a kind of door latch structure that the utility model uses, which is characterized in that including fixed branch
Frame is equipped with motor, microswitch, pin-type knocker and eccentric wheel on the fixed bracket；
The motor, eccentric wheel are separately mounted to support bracket fastened two sides, and motor is equipped with rotary shaft, and the rotary shaft is worn
It being interference fitted after crossing fixed bracket with the mounting hole on eccentric wheel, the deflection wheel on the eccentric wheel is mounted on pin-type door and buckles,
Fixation hole of the bottom of pin-type knocker on fixed bracket slides up and down；
The microswitch is mounted on fixed bracket and is located at the ipsilateral of eccentric wheel installation, and the bottom of microswitch is equipped with
Feeler point when the pin-type knocker is moved to the top, touches feeler point at the top of pin-type knocker, keep feeler point recessed
Inside microswitch, the two connecting terminals generation for controlling microswitch is logical or disconnected.
As an improvement, the synchronous decelerating motor of the model of the motor, orientation can be with model TY- with non-directional
50AF；The microswitch is common push type microswitch, model THW-16.
As an improvement, the upper end of the pin-type knocker is equipped with long slot hole, the deflection wheel on the eccentric wheel is mounted on elongated slot
In hole.
As an improvement, the inner wall of the long slot hole and the outer wall of deflection wheel are tangent.
As an improvement, the fixed bracket is equipped with coaxially arranged fixation hole one and fixation hole two.
As an improvement, circular hole or irregularly-shaped hole is respectively adopted in the fixation hole one, fixation hole two.
As an improvement, the bottom of the pin-type knocker uses the circular shaft or special-shaped axis cooperated with circular hole or irregularly-shaped hole.
Compared with prior art, the utility model has the beneficial effects that
1) door latch structure of the utility model is simple, and low processing cost, mechanism is reliable, and failure rate is low, is suitable for each neck
In the doors and windows in domain.Especially it has when the power-off of shutdown state, and door is in the function of closed state, is used for high temperature
Automatically cleaning oven, it can be ensured that user will not be scalded because of maloperation.
2) this practical door lock is still remained off in off-position, it is necessary to which power supply is just capable of resetting opening.
3) microswitch of this practical door lock is push type, meets the handling characteristics of microswitch, guarantees switch
The stable and service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the explosive view of the utility model；
Fig. 3 is that the door lock of the utility model is in unlocking condition schematic diagram；
Fig. 4 is in for the door lock of the utility model and shuts status diagram；
In figure: 1, fixed bracket, 11, fixation hole one, 12, fixation hole two, 2, motor, 21, rotary shaft, 3, microswitch,
31, feeler point, 4, pin-type knocker, 41, long slot hole, 5, eccentric wheel, 51, mounting hole, 52, deflection wheel.
Specific embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, the utility model is carried out below
It is further described.However, it should be understood that specific embodiment described herein is only used to explain the utility model, not
For limiting the scope of the utility model.
Unless otherwise defined, all technical terms and scientific terms used herein and the skill for belonging to the utility model
The normally understood meaning of the technical staff in art field is identical, and terminology used in the description of the utility model herein is only
It is the purpose in order to describe specific embodiment, it is not intended that in limitation the utility model.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of door latch structure, including bracket 1 is fixed, it is installed on the fixed bracket 1
There are motor 2, microswitch 3, pin-type knocker 4 and eccentric wheel 5；
The motor 2, eccentric wheel 5 are separately mounted to the two sides of fixed bracket 1, and motor 2 is equipped with rotary shaft 21, the rotation
Shaft 21 cooperates after passing through fixed bracket 1 with the mounting hole 51 on eccentric wheel 5, and the deflection wheel 52 on the eccentric wheel 5 is mounted on slotting
On pin-type knocker 4, fixation hole of the bottom of pin-type knocker 4 on fixed bracket 1 is slided up and down；
The microswitch 3 is mounted on fixed bracket 1 and is located at ipsilateral, the bottom of microswitch 3 that eccentric wheel 5 is installed
Equipped with feeler point 31, when the pin-type knocker 4 is moved to the top, the top of pin-type knocker 4 touches feeler point 31, makes
Feeler point 31 is recessed inside microswitch, and two connecting terminals of control microswitch 3 generate logical or disconnected.Pass through microswitch
3 action signal judges door lock by control IC or other control system to fully open situation.When door lock is full open position
When, according to the rotary speed parameter of motor 2, by matched IC or other control system, when can turn the power supply of half-turn to 2 one, motor
Between.To realize that door lock is closed.
As the improvement of embodiment, the motor 2 is synchronous decelerating motor, and orientation can be with preferred type with non-directional
Number be TY-50AF；The microswitch is common push type microswitch, model THW-16.
Additionally, it is preferred that rotary shaft 21 be flat axis, corresponding mounting hole 51 also use flat hole, driven partially by rotary shaft 21
The rotation of heart wheel 5 is more convenient.
As the improvement of embodiment, the upper end of the pin-type knocker 4 is equipped with long slot hole 41, inclined on the eccentric wheel 5
Wheel 52 is mounted in long slot hole 41.As the improvement of embodiment, the inner wall of the long slot hole 41 and the outer wall of deflection wheel 52 are tangent, have
Effect ensures when motor 2 rotates, and pin-type knocker 4 can be driven to move up and down by deflection wheel 52.
As the improvement of embodiment, the fixed bracket 1 is equipped with coaxially arranged fixation hole 1 and fixation hole 2 12.
It is more convenient to slide in fixation hole convenient for pin-type knocker 4.
As the improvement of embodiment, circular hole or irregularly-shaped hole is respectively adopted in the fixation hole 1, fixation hole 2 12.It is described to insert
The bottom of pin-type knocker 4 uses the circular shaft special-shaped axis cooperated with circular hole or irregularly-shaped hole.
In use, motor 2 works, eccentric wheel 5 is driven to rotate by rotary shaft 21, deflection wheel 52 drives pin-type knocker at this time
4 fixation hole 1, the fixation hole 2 12 on fixed bracket 1 slides up and down, when pin-type knocker 4 is located at most significant end, bolt
The top of type knocker 4 is contacted with the feeler point 31 in microswitch 3, and feeler point 31 is recessed inside microswitch at this time, is controlled micro-
Two connecting terminals of dynamic switch 3, which generate, to be led to or disconnected, by IC or other control system, judges that door lock is door opening state at this time
(such as Fig. 3).At this time to close the door, further according to the rotary speed parameter of motor, supplied by matched IC or other control system to motor 2
Electricity makes the rotary shaft 21 of motor 2 rotate half-turn, the deflection wheel 52 of eccentric wheel 5 is made to be moved to bottom, 52 band of deflection wheel of eccentric wheel 5
The long slot hole 41 of dynamic pin-type knocker 4 makes pin-type knocker 4 in the bottom of fixed bracket 1, reaches shutdown state at this time (such as
Fig. 4).
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement or improvement etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. a kind of door latch structure, which is characterized in that including fixed bracket (1), be equipped on the fixed bracket (1) motor (2),
Microswitch (3), pin-type knocker (4) and eccentric wheel (5)；
The motor (2), eccentric wheel (5) are separately mounted to the two sides of fixed bracket (1), and motor (2) is equipped with rotary shaft (21),
The rotary shaft (21) passes through fixed bracket (1) and cooperates afterwards with the mounting hole (51) on eccentric wheel (5), on the eccentric wheel (5)
Deflection wheel (52) be mounted on pin-type knocker (4), the bottom of pin-type knocker (4) is along the fixation hole on fixed bracket (1)
Lower slider；
The microswitch (3) is mounted on fixed bracket (1) and is located at the ipsilateral of eccentric wheel (5) installation, microswitch (3)
Bottom is equipped with feeler point (31), and when the pin-type knocker (4) is moved to the top, pin-type knocker touches at the top of (4)
Feeler point (31) is recessed feeler point (31) inside microswitch, two connecting terminals of control microswitch (3) generate it is logical or
Person is disconnected.
2. a kind of door latch structure according to claim 1, which is characterized in that the steering of the motor (2) regardless of up time with
Inverse time, model TY-50AF；The microswitch (3) is common push type microswitch, model THW-16.
3. a kind of door latch structure according to claim 1, which is characterized in that the upper end of the pin-type knocker (4) is equipped with
Long slot hole (41), the deflection wheel (52) on the eccentric wheel (5) are mounted in long slot hole (41).
4. a kind of door latch structure according to claim 3, which is characterized in that the inner wall and deflection wheel of the long slot hole (41)
(52) outer wall is tangent.
5. a kind of door latch structure according to claim 1 or 2, which is characterized in that the fixed bracket (1) is equipped with coaxial
The fixation hole one (11) and fixation hole two (12) of arrangement.
6. a kind of door latch structure according to claim 5, which is characterized in that the fixation hole one (11), fixation hole two
(12) circular hole or irregularly-shaped hole is respectively adopted.
7. a kind of door latch structure according to claim 6, which is characterized in that the bottom of the pin-type knocker (4) uses
The circular shaft or special-shaped axis cooperated with circular hole or irregularly-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060326.XU CN209509759U (en) | 2018-12-07 | 2018-12-07 | A kind of door latch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060326.XU CN209509759U (en) | 2018-12-07 | 2018-12-07 | A kind of door latch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209509759U true CN209509759U (en) | 2019-10-18 |
Family
ID=68193438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822060326.XU Active CN209509759U (en) | 2018-12-07 | 2018-12-07 | A kind of door latch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209509759U (en) |
-
2018
- 2018-12-07 CN CN201822060326.XU patent/CN209509759U/en active Active
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