CN215859558U - Torsional spring prestressing force structure and door lock - Google Patents
Torsional spring prestressing force structure and door lock Download PDFInfo
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- CN215859558U CN215859558U CN202121189739.3U CN202121189739U CN215859558U CN 215859558 U CN215859558 U CN 215859558U CN 202121189739 U CN202121189739 U CN 202121189739U CN 215859558 U CN215859558 U CN 215859558U
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Abstract
The utility model discloses a torsion spring prestress structure, which comprises: the transmission part is provided with a stroke groove which is arranged along the transverse direction and is provided with two convex parts; the side wall of the lock tongue is provided with an installation pin, the installation pin penetrates through the stroke groove, and the installation pin can slide along the stroke groove; the spring, one of them the spring bolt cover is equipped with the torsional spring, two terminal extension bars of torsional spring support respectively and lean on in two the convex part makes the spring bolt has relatively the driving medium moves towards the motion trend of adduction direction removal. In the process of closing the door, the bolt makes circular motion around the door shaft, so the bolt has a motion trend of moving towards the extending direction of the bolt under the action of centrifugal force, and because the transmission piece applies a pre-force towards the retracting direction of the bolt to the bolt through the torsion spring, the centrifugal force is counteracted, so that the bolt is not thrown outwards due to the centrifugal force. The utility model discloses a door lock which comprises the torsion spring prestress structure.
Description
Technical Field
The utility model relates to a torsion spring pre-stressing structure and a door lock.
Background
The door lock is provided with a lock tongue, the lock tongue is slidably arranged in the door lock, and the door can be opened after the lock tongue is retracted. In the process of closing the door, the lock tongue rotates around the door shaft along with the door plate, so the lock tongue can be subjected to centrifugal force and tends to be thrown outwards. Therefore, in the prior art, the first magnet needs to be arranged on the lock tongue, the second magnet is arranged on the shell, and the centrifugal force applied to the lock tongue is offset by the attraction force generated by the second magnet to the first magnet, so that the lock tongue is prevented from being thrown out. However, the first magnet and the second magnet are expensive and inconvenient to install, and the industry is in urgent need to solve the above problems.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a pre-stressing structure of a torsion spring, which can prevent a bolt from being thrown out during the door closing process, and has a simple structure and low cost. The second objective of the present invention is to provide a door lock, which includes the above-mentioned torsion spring biasing structure.
The purpose of the utility model is realized by adopting the following technical scheme:
torsional spring pretension structure includes:
the transmission part is provided with a stroke groove which is arranged along the transverse direction and is provided with two convex parts;
the side wall of the lock tongue is provided with an installation pin, the installation pin penetrates through the stroke groove, and the installation pin can slide along the stroke groove;
the spring, one of them the spring bolt cover is equipped with the torsional spring, two terminal extension bars of torsional spring support respectively and lean on in two the convex part makes the spring bolt has relatively the driving medium moves towards the motion trend of adduction direction removal.
Specifically, the edge of the transmission member is provided with a transmission notch.
Specifically, two sides of the opening of the transmission notch are respectively provided with a pole chamfer.
Specifically, the driving medium is equipped with two the stroke groove, the lateral wall of spring bolt is equipped with two the installing pin, every the installing pin match in one the stroke groove.
Specifically, the transmission part is provided with a pole triggering part.
Specifically, the upper and lower side edges of the transmission member are provided with one convex part, the two convex parts are vertically arranged, and the center line of the stroke groove is located between the two convex parts.
The door lock comprises a torsion spring pre-stressing structure, a shifting peach, a driving mechanism and a shell, wherein the shifting peach is rotatably arranged on the inner wall of the shell, the lock bolt is connected with the shell in a sliding manner, and the shifting peach is abutted against the inner wall of the transmission notch so as to limit the transmission part to slide towards the extending direction of the lock bolt.
Specifically, shells inner wall is equipped with utmost point position switch, the opening part both sides of transmission breach are equipped with utmost point position chamfer respectively, the driving medium is equipped with utmost point position trigger part, works as the end of thumb wheel leans on in one of them utmost point position chamfer, utmost point position trigger part triggers utmost point position switch.
Compared with the prior art, the utility model has the beneficial effects that:
after the door lock finishes the action of opening the door, the driving mechanism drives the shifting peach to swing, so that the shifting peach leaves a pole chamfer close to the inside closing direction of the lock tongue, swings to abut against the inner wall close to one side of the inside closing direction of the lock tongue on the transmission notch, and keeps in the angle position, thereby limiting the transmission part to slide towards the extending direction of the lock tongue. Under this state, because two terminal extension bars of torsional spring support respectively and lean on in two convex parts (the torsional spring has and produces elastic deformation), the driving medium exerts a prestressing force towards the inside of the spring bolt direction through the torsional spring to the spring bolt promptly, makes the spring bolt have the motion trend that relative driving medium removed towards the inside of the spring bolt direction.
In the process of closing the door, the bolt makes circular motion around the door shaft, so the bolt has a motion trend of moving towards the extending direction of the bolt under the action of centrifugal force, and because the transmission piece applies a pre-force towards the retracting direction of the bolt to the bolt through the torsion spring, the centrifugal force is counteracted, so that the bolt is not thrown outwards due to the centrifugal force.
Drawings
FIG. 1 is a partial view of the internal structure of the door lock;
FIG. 2 is a partial view of FIG. 1 with the torsion spring only shown schematically;
FIG. 3 is a view of the combination of the bolt and the driving member, wherein the torsion spring is only schematically shown;
fig. 4 is a perspective view of the torsion spring.
In the figure: 1. a transmission member; 11. a stroke slot; 12. a convex portion; 13. a transmission notch; 131. chamfering the pole position; 14. a pole position trigger part; 2. a latch bolt; 21. mounting a pin; 3. a torsion spring; 31. a tail end extension strip; 4. shifting peaches; 5. a drive mechanism; 6. and a pole position switch.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Torsional spring pretension structure includes: driving medium 1, spring bolt 2, torsional spring 3.
The transmission piece 1 is provided with a stroke groove 11, the stroke groove 11 is arranged along the transverse direction, and the transmission piece 1 is provided with two convex parts 12. The side wall of bolt 2 is equipped with mounting pin 21, and mounting pin 21 passes through to be located stroke groove 11, and mounting pin 21 can slide along stroke groove 11. One of them spring bolt 2 cover is equipped with torsional spring 3, and two ends of torsional spring 3 stretch out strip 31 and lean on respectively in two convex parts 12, make spring bolt 2 have the motion trend of relative driving medium 1 to receiving the direction removal inwards.
In particular, the edge of the transmission piece 1 is provided with a transmission notch 13.
Specifically, two sides of the opening of the transmission notch 13 are respectively provided with a pole chamfer 131.
Specifically, the transmission member 1 is provided with two stroke grooves 11, the side wall of the lock tongue 2 is provided with two mounting pins 21, and each mounting pin 21 is matched with one stroke groove 11.
In particular, the transmission 1 is provided with a pole triggering portion 14.
Specifically, the upper and lower side edges of the transmission member 1 are each provided with one convex portion 12, the two convex portions 12 are arranged vertically, and the center line of the stroke groove 11 is located between the two convex portions 12.
The door lock comprises a torsion spring pre-stressing structure, a shifting peach 4, a driving mechanism 5 and a shell, wherein the shifting peach 4 is rotatably arranged on the inner wall of the shell. The bolt 2 is slidably connected with the housing. The thumb wheel 4 abuts against the inner wall of the transmission notch 13 to limit the transmission member 1 from sliding towards the extending direction of the bolt 2.
Specifically, the inner wall of the housing is provided with a pole position switch 6, and when the tail end of the peach 4 abuts against one of the pole position chamfers 131, the pole position trigger part 14 triggers the pole position switch 6.
The working process of the torsion spring prestress structure is as follows:
with reference to fig. 2 and 3, the driving mechanism 5 is used for driving the shifting block 4 to swing, and the shifting block 4 drives the driving member 1 to move back and forth by abutting against two inner walls of the transmission notch 13, so as to drive the bolt 2 to move in the outward extending direction or the inward retracting direction. When the thumb wheel 4 drives the transmission member 1 to move to the extreme position in the extending direction of the bolt 2 or the retracting direction of the bolt 2, the end of the thumb wheel 4 abuts against the extreme position chamfer 131 on the side, so that the bolt 2 is kept at the extreme position. When the bolt 2 is in the extreme position in the retracted direction, the door can be opened.
After the door lock finishes the door opening action, the driving mechanism 5 drives the thumb wheel 4 to swing, so that the thumb wheel 4 leaves the pole chamfer 131 close to the retraction direction of the bolt 2, swings to abut against the inner wall (shown in fig. 2) of the transmission notch 13 close to one side of the retraction direction of the bolt 2, and is kept at the angle position, thereby limiting the transmission piece 1 from sliding towards the extending direction of the bolt 2. Under this state, because two terminal extension bars 31 of torsional spring 3 support respectively and lean on in two convex parts 12 (torsional spring 3 has and produces elastic deformation), driving medium 1 exerts the prestressing force of a direction of adduction towards spring bolt 2 through torsional spring 3 to spring bolt 2 promptly, makes spring bolt 2 have relative driving medium 1 towards the motion trend of the adduction direction removal of spring bolt 2.
In the process of closing the door, the bolt 2 makes a circular motion around the door shaft, so the bolt 2 has a moving trend of moving towards the extending direction of the bolt 2 under the action of centrifugal force, and because the transmission piece 1 applies a pre-force towards the retracting direction of the bolt 2 to the bolt 2 through the torsion spring 3 to offset the centrifugal force, the bolt 2 is not thrown outwards due to the centrifugal force.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. Torsional spring pretension structure, its characterized in that includes:
the transmission part is provided with a stroke groove which is arranged along the transverse direction and is provided with two convex parts;
the side wall of the lock tongue is provided with an installation pin, the installation pin penetrates through the stroke groove, and the installation pin can slide along the stroke groove;
the spring, one of them the spring bolt cover is equipped with the torsional spring, two terminal extension bars of torsional spring support respectively and lean on in two the convex part makes the spring bolt has relatively the driving medium moves towards the motion trend of adduction direction removal.
2. The torsion spring preload structure according to claim 1, wherein the transmission member has a transmission notch at an edge thereof.
3. The torsion spring preload structure according to claim 2, wherein two sides of the opening of the transmission notch are respectively provided with a pole chamfer.
4. The torsion spring preload structure according to claim 1, wherein the transmission member is provided with two of the stroke grooves, the side wall of the lock tongue is provided with two of the mounting pins, and each of the mounting pins is matched with one of the stroke grooves.
5. The torsion spring preload structure according to claim 1, wherein the transmission member is provided with a pole triggering portion.
6. The torsion spring preload structure according to claim 1, wherein the upper and lower side edges of the transmission member are each provided with one of the protrusions, the two protrusions are vertically arranged, and the center line of the stroke groove is located between the two protrusions.
7. The door lock is characterized by comprising the torsion spring prestress structure, the thumb wheel, the driving mechanism and the shell as claimed in claim 2, wherein the thumb wheel is rotatably arranged on the inner wall of the shell, the lock tongue is slidably connected with the shell, and the thumb wheel abuts against the inner wall of the transmission notch so as to limit the transmission piece to slide towards the extending direction of the lock tongue.
8. The door lock according to claim 7, wherein the inner wall of the housing is provided with a pole switch, two sides of the opening of the transmission notch are respectively provided with a pole chamfer, the transmission member is provided with a pole trigger part, and when the tail end of the thumb wheel abuts against one of the pole chamfers, the pole trigger part triggers the pole switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121189739.3U CN215859558U (en) | 2021-05-28 | 2021-05-28 | Torsional spring prestressing force structure and door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121189739.3U CN215859558U (en) | 2021-05-28 | 2021-05-28 | Torsional spring prestressing force structure and door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215859558U true CN215859558U (en) | 2022-02-18 |
Family
ID=80313441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121189739.3U Active CN215859558U (en) | 2021-05-28 | 2021-05-28 | Torsional spring prestressing force structure and door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215859558U (en) |
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2021
- 2021-05-28 CN CN202121189739.3U patent/CN215859558U/en active Active
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