CN112031555B

CN112031555B - Push type door lock

Info

Publication number: CN112031555B
Application number: CN202010983564.7A
Authority: CN
Inventors: 王立孟
Original assignee: Wenzhou Tianjian Electric Co ltd
Current assignee: Wenzhou Tianjian Electric Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2022-02-11
Anticipated expiration: 2040-09-17
Also published as: CN112031555A

Abstract

The invention provides a push type door lock, which belongs to the technical field of door locks and comprises the following components: the limiting and pushing device comprises a cam, a limiting pushing piece, a clamping rod, a locking sliding block, a sliding pushing piece and a limiting block, wherein a peach-heart structure is arranged on the limiting pushing piece, a notch with an opening facing the outside of a door is formed in the peach-heart structure, a second bending end of the clamping rod is suitable for being clamped in the notch of the peach-heart structure, the locking sliding block is provided with a first position which is abutted to the horizontal plane of the cam through the sliding pushing piece, and the limiting block is provided with a blocking state which blocks the locking sliding block at the first position after extending out; the push type door lock can lock the cam at the locking position when the door panel is pushed for the first time, and unlock the cam when the door panel is pushed for the second time, so that the cam can be turned to the unlocking position; meanwhile, the cam can be forcibly locked, so that the cam can be forcibly kept at the locking position when the locking position is closed, and the problem that the door hook is separated in the working process is avoided.

Description

Push type door lock

Technical Field

The invention relates to the technical field of door locks, in particular to a push type door lock.

Background

The press type door lock has relatively wide application in a washing machine door, in use, a user can close the door plate by pressing the door plate for the first time, then open the door plate by pressing the door plate for the second time, when the door plate is locked by the door lock, a door hook is generally arranged on the door plate, after the door plate is pressed, the door hook is inserted into the door lock, and the door lock hooks the door hook by a cam; in addition, during the operation of the washing machine, the cam needs to be forcibly locked to prevent the door hook from being forced to be disengaged from the hook of the cam.

In the prior art, a cam of a door lock is generally provided with a corresponding structure to realize the function of a pressing type door lock, when a door panel is pressed, a door hook pushes the cam to rotate the cam, and the cam is matched with a lock catch in the rotating process, so that the door hook is locked or unlocked. When locking the cam by force, generally through set up the locking lever at the lower extreme of cam, after the cam carried out the hook to the couple, the locking lever can support the cam lower extreme, then through the locking to the locking lever, realized locking the cam by force to avoid the problem that the door hook that the cam downwardly turned and led to deviates from in the work.

Disclosure of Invention

Therefore, the present invention is to provide a novel push-type door lock with a forced locking structure, which can perform secondary push-type unlocking.

In order to solve the above technical problems, the present invention provides a push type door lock, including:

the cam is rotationally connected in the shell and provided with an opening matched with the door hook, and the cam is provided with an unlocking position after the opening rotates outwards and a locking position after the opening rotates inwards; one side of the opening of the cam is a hook structure suitable for being inserted into the door hook, and the other side of the opening is a horizontal plane;

the limiting pushing piece is movably connected in the shell, is provided with a locking position which moves inwards to enable the cam to be abutted against the locking position, and is also provided with an unlocking position which moves outwards to enable the cam to rotate and reset to the unlocking position; a sliding groove with one end facing the horizontal plane of the cam is formed in the limiting pushing block; the limiting pushing block is also provided with a peach heart structure, and the peach heart structure is provided with a notch with an opening facing the outside of the door;

the clamping rod is provided with bending structures at two ends, wherein a first bending end is rotatably connected in the shell, a second bending end extends into the peach-heart structure, and the second bending end is suitable for being clamped in a notch of the peach-heart structure;

a lock slider movably connected in the housing, having a first position for abutting the cam at the lock-off position, and having a second position for moving in a direction away from the cam to allow the cam to rotate to an unlock position; an abutment end on the locking slider facing the horizontal plane of the cam;

the sliding pushing-supporting piece is inserted in a sliding groove of the limiting pushing piece in a sliding mode and moves between the locking position and the unlocking position along with the limiting pushing piece, when the limiting pushing piece is located at the locking position, one end of the sliding pushing-supporting piece is abutted to the horizontal plane of the cam, and the other end of the sliding pushing-supporting piece is abutted to the abutting end of the locking sliding block;

and the limiting block is movably connected in the shell and has a blocking state which can block the locking slide block at the first position after extending out and a unblocking state which can move the locking slide block to the second position after retracting.

Optionally, the method further comprises:

the pushing and abutting rod is connected in the shell in a sliding mode perpendicular to the moving path of the locking sliding block, the front end of the pushing and abutting rod is suitable for abutting against the locking sliding block, and the rear end of the pushing and abutting rod is suitable for abutting against the limiting block; when the pushing and supporting rod moves towards the direction close to the locking sliding block, the limiting block is suitable for extending out and blocking the rear end of the pushing and supporting rod; when the limiting block retracts to the blocking-releasing state, the pushing and resisting rod is suitable for moving towards the direction far away from the locking slide block;

and the pushing and abutting rod spring is connected with the pushing and abutting rod and has biasing force for driving the pushing and abutting rod to move towards the direction close to the locking sliding block.

Optionally, the front end of the pushing and supporting rod is provided with a sliding groove matched with the locking sliding block, the sliding groove is provided with a bottom wall and a side wall, the bottom wall is an inclined surface, and the side wall is a vertical surface;

the locking slide block is provided with a protruding end which is suitable for extending into the sliding groove of the pushing and abutting rod, the bottom surface of the protruding end is in sliding fit with the bottom wall of the sliding groove, and the side surface of the protruding end is in sliding fit with the side wall of the sliding groove.

Optionally, the front end of the pushing and supporting rod is further provided with an extending end matched with the limiting pushing piece, and the extending end is provided with an extending surface;

the limiting pushing piece is provided with a blocking block matched with the extending end, and when the limiting pushing piece is positioned at an unlocking position, the blocking block is abutted against the extending surface of the extending end of the pushing and supporting rod, so that the pushing and supporting rod cannot move towards the direction close to the locking sliding block;

when the limiting pushing piece is in the locking position, the blocking piece leaves the moving path of the extending end, so that the pushing and supporting rod can move towards the direction close to the locking sliding block.

Optionally, the extension surface is an inclined surface.

Optionally, a peach-heart piece is rotatably connected to the limit pushing piece, and a peach-heart structure is arranged on the peach-heart piece;

further comprising: the ejecting block is movably connected in the shell, an elastic piece is connected to the ejecting block, and the ejecting block has a driving force for pushing the peach-heart piece towards one side under the action of the elastic piece;

the unlocking slide block is movably connected in the shell and suitable for blocking the other side, opposite to the top block, of the peach-heart piece, and the unlocking slide block is in an unlocking state of removing the blocking of the peach-heart piece after moving.

Optionally, the method further comprises: and one end of the unlocking pull rod is connected to the locking sliding block, the other end of the unlocking pull rod is an unlocking end, and the unlocking end is provided with an inclined surface suitable for being matched with the unlocking sliding block.

Optionally, the method further comprises: the pulling block is connected in the shell in a sliding mode perpendicular to the moving path of the unlocking sliding block, a button is arranged on the pulling block, and the button is provided with an arc-shaped outer wall matched with the unlocking sliding block;

the rear end of the unlocking slide block is provided with a hook groove matched with the arc-shaped outer wall of the button, and the inner side surface of the hook groove is provided with an inclined surface;

the pulling block is provided with a first state which drives the unlocking slide block to move towards the unlocking state after moving, and the pulling block is also provided with a second state which enables the unlocking slide block to continue to block towards the peach-heart piece after moving.

Optionally, the button can be elastically retracted into the pulling block, and a diagonal rib is further connected to the side wall of the button;

a vertical plate matched with the inclined rib is arranged in the shell;

when the pulling block moves towards the first state, the inclined rib of the button is in contact with the vertical plate, the button is gradually retracted into the pulling block under the action of the vertical plate, and finally the button is disengaged from the hook groove of the unlocking slide block, so that the unlocking slide block can reset towards the peach-heart piece;

when the pulling block moves towards the second state, the inclined rib of the button moves towards the direction far away from the vertical plate, and the button elastically extends out of the pulling block, so that the button can continue to be matched with the hook groove of the unlocking slide block.

Optionally, the method further comprises: the pulling block is driven by the electromagnetic mechanism, and the limiting block is driven by the electromagnetic mechanism;

when the electromagnetic mechanism drives the pulling block to move towards the first state, the limiting block moves to the unblocking state under the driving of the electromagnetic mechanism.

The technical scheme of the invention has the following advantages:

1. the press type door lock provided by the invention has the advantages that the door hook is clamped through the cam, the cam is provided with the hook structure and the horizontal plane positioned on one side of the hook structure, the limiting pushing piece is matched with the horizontal plane to drive and limit the cam, the limiting pushing piece is provided with the peach-heart structure, and the peach-heart structure is matched with the clamping rod to realize clamping of the limiting pushing piece, so that the cam is locked at a lock closing position when the door panel is pushed for the first time, and the cam is unlocked when the door panel is pushed for the second time, so that the cam can be turned to an unlocking position; meanwhile, the locking slide block is matched with a horizontal plane on the cam, so that the cam is forcibly locked, the cam can be forcibly kept at the position when the cam is at the locking position, and the problem that the door hook is separated during working is avoided.

2. According to the press type door lock provided by the invention, the limit pushing piece is provided with the blocking block for blocking the pushing and abutting rod, and when the limit pushing piece unlocks the cam, the pushing and abutting rod needs to be blocked so as to prevent the pushing and abutting rod from moving towards the direction close to the locking sliding block and further prevent the limit block from extending out; or the resistance when the limiting pushing piece is moved for locking is reduced, namely the resistance when the door panel is pushed is reduced.

3. According to the press type door lock provided by the invention, the peach-heart piece is rotatably connected to the limit pushing piece, and the lock on the limit pushing piece can be more conveniently released through the rotation of the peach-heart piece, so that the limit pushing piece can move towards the unlocking position in time.

4. According to the press type door lock provided by the invention, the button on the pull rod can be elastically retracted into the pull rod, and when the pull rod drives the unlocking slide block to move to the first state of the pull rod, the button is retracted into the pull rod due to the matching of the inclined rib on the button and the vertical plate on the shell, so that the driving of the unlocking slide block is released, the unlocking slide block can reset and move towards the peach-heart piece, and the unlocking slide block can block the peach-heart piece again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of one embodiment of a push type door lock.

Fig. 2 is another perspective view of the push-type door lock of fig. 1.

Fig. 3 is an exploded view of the locking slider, the sliding abutting member and the limiting pushing member in fig. 2.

Fig. 4 is a perspective view of the matching structure of the locking slider and the pushing rod.

Fig. 5 is a perspective view of a matching structure of the limiting pushing piece and the peach-heart piece and the pushing and supporting rod respectively.

Fig. 6 is a perspective view of the matching structure of the unlocking slide block with the peach-heart piece and the pulling block respectively.

Fig. 7 is a perspective view of the matching structure of the button and the unlocking slider and the vertical plate respectively.

Fig. 8 is an enlarged view of the area a in fig. 7.

Fig. 9 is a top view of the mating structure of the button with the unlocking slider and the riser, respectively.

Fig. 10 is an exploded view of the electromagnetic mechanism and the stopper.

Fig. 11 is a front view of the peach-heart piece.

Fig. 12 is a schematic view of the door hook when not inserted into the door lock.

Fig. 13 is a rear view angle diagram of fig. 12.

Fig. 14 is a schematic view of a door hook during insertion into a door lock.

Fig. 15 is a rear view angle diagram of fig. 14.

Fig. 16 is a schematic view of the door hook snapping into the cam.

Fig. 17 is a rear view angle diagram of fig. 16.

FIG. 18 is a schematic view of the engagement of the heart piece with the catch lever when the door hook is pushed a second time toward the inside of the door.

Fig. 19 is a perspective view of the door hook in a cam-engaged state.

Fig. 20 is a schematic view when the door hook is forcibly pushed out of the door.

Fig. 21 is a rear view angle diagram of fig. 20.

Description of reference numerals:

1. a cam; 2. a limiting pushing piece; 3. a clamping rod; 4. locking the slide block; 5. a peach heart piece; 6. unlocking the pull rod; 7. a push-against rod; 8. unlocking the slide block; 9. a button; 10. a limiting block; 11. a door hook; 12. a top block; 13. sliding the abutting piece; 14. pulling the block; 15. a vertical plate; 16. an electromagnetic mechanism; 17. a slot structure; 18. inserting a column; 101. a hook structure; 102. a horizontal plane; 201. a sliding groove; 202. a blocking block; 301. a first bent end; 302. a second bent end; 401. a butting end; 402. a protruding end; 501. a peach heart limiting groove; 502. a peach heart stopper; 503. a first accommodating groove; 504. a second temporary accommodation groove; 505. a third temporary accommodating groove; 506. a recess; 507. a first tip; 508. a second tip; 601. an unlocking end; 701. a bottom wall; 702. a side wall; 703. an extension end; 704. an extension plane; 801. hooking a groove; 901. an arcuate outer wall; 902. and (5) oblique ribs.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The present embodiment provides a specific implementation of a door lock, as shown in fig. 1 and fig. 2, including: the door lock comprises a cam 1, a limiting pushing piece 2 and a locking sliding block 4, wherein the cam 1 is rotatably connected in a shell, the cam 1 is provided with an opening used for being matched with a door hook 11, the cam 1 is provided with an unlocking position after the opening rotates outwards, and is also provided with a locking position after the opening rotates inwards; one side of the opening of the cam 1 is a hook structure 101 suitable for being inserted into the door hook 11, and the other side of the opening is a horizontal plane 102.

As shown in fig. 1 and 2, the limit push member 2 is movably connected to the housing, the limit push member 2 has a locked position where the cam 1 can be abutted at a lock-off position by moving inward, and the limit push member 2 further has an unlocked position where the cam 1 can be rotated and reset to an unlock position by moving outward. A peach-heart piece 5 is arranged on the limiting pushing piece 2, and a peach-heart structure is arranged on the peach-heart piece 5 and is a notch 506 with an opening facing the outside of the door; still be equipped with the kelly 3 in the casing, the both ends of kelly 3 have the structure of buckling, and wherein first end 301 of buckling is rotationally connected in the casing, and second end 302 of buckling extends to in the peach-heart structure, second end 302 of buckling is suitable for the joint in the notch 506 of peach-heart structure.

As shown in fig. 2, the core 5 is rotatably connected to the position-limiting pushing member 2, a top block 12 is movably connected in the housing, an elastic member is connected to the top block 12, and the top block 12 has a driving force pushing the core 5 toward one side under the action of the elastic member.

As shown in fig. 2, the lock slider 4 is movably connected in the housing, and the lock slider 4 has a first position where the cam 1 abuts against the lock-off position and a second position where the lock slider moves in a direction away from the cam 1 and the cam 1 can be rotated to an unlock position; on the locking slider 4 there is an abutment end 401 towards the horizontal surface 102 of the cam 1.

As shown in fig. 3, the position-limiting pushing member 2 is provided with a sliding groove 201 having one end facing the horizontal plane 102 of the cam 1, a sliding abutting member 13 is slidably inserted in the sliding groove 201, the sliding abutting member 13 moves between the locking position and the unlocking position along with the position-limiting pushing member 2, when the position-limiting pushing member 2 is located at the locking position, one end of the sliding abutting member 13 abuts against the horizontal plane 102 of the cam 1, and the other end of the sliding abutting member 13 abuts against an abutting end 401 of the locking slider 4.

As shown in fig. 4, a pushing and abutting rod 7 is movably arranged in the housing, the pushing and abutting rod 7 is slidably connected in the housing perpendicular to the moving path of the locking slider 4, the front end of the pushing and abutting rod 7 is suitable for abutting against the locking slider 4, and the rear end of the pushing and abutting rod 7 is suitable for abutting against a limiting block 10; and, a push-against rod spring is further connected to the push-against rod 7, and the push-against rod spring has a biasing force that drives the push-against rod 7 to move toward a direction close to the locking slider 4. When the push-and-hold lever 7 moves towards the direction close to the locking slider 4, the limiting block 10 is suitable for being extended out and then blocking the rear end of the push-and-hold lever 7; when the limiting block 10 is retracted to the unblocking state, the push-against rod 7 is adapted to move in a direction away from the locking slider 4.

As shown in fig. 4, a limit block 10 is movably disposed in the housing, the limit block 10 has a blocking state of blocking the rear end of the pushing and abutting rod 7 after extending out, and the limit block 10 also has a contact blocking state of releasing the blocking of the limit block 10 after retracting; when the limiting block 10 is in the blocking state, the locking slider 4 is blocked at the first position by being abutted by the pushing and abutting rod 7, and when the locking slider 4 abuts the cam 1 at the locking position at the first position; when the limiting block 10 is in the blocking release state, the locking slider 4 can push the pushing rod 7 to slide, so that the locking slider 4 can move to the second position, and when the locking slider 4 is in the second position, the cam 1 is released from being forcibly locked, so that the cam 1 can rotate to the unlocking position.

As shown in fig. 4, the front end of the pushing and supporting rod 7 has a sliding groove 201 matching with the locking slider 4, the sliding groove 201 has a bottom wall 701 and a side wall 702, the bottom wall 701 is an inclined surface, and the side wall 702 is a vertical surface; the locking slider 4 is provided with a protruding end 402 adapted to extend into the sliding groove 201 of the pushing and abutting rod 7, the bottom surface of the protruding end 402 is in sliding fit with the bottom wall 701 of the sliding groove 201, and the side surface of the protruding end 402 is in sliding fit with the side wall 702 of the sliding groove 201.

As shown in fig. 5, the front end of the pushing-against rod 7 further has an extending end 703 matched with the limit pushing element 2, the extending end 703 is provided with an extending surface 704, and the extending surface 704 is an inclined surface. The limit pushing element 2 is provided with a blocking block 202 matched with the extending end 703, when the limit pushing element 2 is in an unlocking position, the blocking block 202 abuts against an extending surface 704 of the extending end 703 of the pushing and supporting rod 7, so that the pushing and supporting rod 7 cannot move towards a direction close to the locking slide block 4; when the limiting pushing member 2 is in the locking position, the blocking block 202 leaves the moving path of the extending end 703, so that the pushing rod 7 can move toward the direction close to the locking slider 4.

As shown in fig. 6, an unlocking slider 8 is movably connected in the housing, the unlocking slider 8 is adapted to be blocked at the other side of the core 5 opposite to the top block 12, and the unlocking slider 8 has an unlocking state in which the blocking of the core 5 is released after moving.

As shown in fig. 6, an unlocking rod 6 is movably connected in the housing, one end of the unlocking rod 6 is connected to the locking slider 4, the other end of the unlocking rod 6 is an unlocking end 601, and the unlocking end 601 is provided with an inclined surface adapted to be matched with the unlocking slider 8. When the locking slide 4 is driven to move towards the second position (downward movement as shown in fig. 6), the unlocking pull rod 6 on the locking slide 4 moves together with the locking slide 4, and the unlocking end 601 of the unlocking pull rod 6 can drive the unlocking slide 8 to move towards the unlocking state, so that the unlocking slide 8 releases the blocking of the peach-heart piece 5, and the peach-heart piece 5 rotates under the action of the top block 12.

As shown in fig. 6, a pulling block 14 is movably connected in the housing, the pulling block 14 can slide perpendicular to the moving path of the unlocking slider 8, a button 9 is arranged on the pulling block 14, and the button 9 has an arc-shaped outer wall 901 matched with the unlocking slider 8; the rear end of the unlocking slide block 8 is provided with a hook groove 801 matched with the arc-shaped outer wall 901 of the button 9, and the inner side surface of the hook groove 801 is provided with an inclined surface; the pulling block 14 has a first state that drives the unlocking slider 8 to move towards the unlocking state after moving, and the pulling block 14 also has a second state that enables the unlocking slider 8 to continue to block towards the peach-heart piece 5 after moving.

As shown in fig. 7 and 8, the button 9 can be elastically retracted into the pull block 14, and a tilted rib 902 is further connected to the sidewall 702 of the button 9; the housing has a riser 15 that mates with the tilted rib 902. When the pull block 14 moves towards the first state, the unlocking slider 8 is pulled to move towards the direction away from the peach-heart 5, when the inclined rib 902 of the button 9 contacts with the vertical plate 15, the button 9 gradually retracts into the pull block 14 under the action of the vertical plate 15, and finally the button 9 is disengaged from the hook groove 801 of the unlocking slider 8, so that the unlocking slider 8 can move towards the peach-heart 5 in a resetting way.

As shown in fig. 9, when the pulling block 14 moves towards the second state, the inclined rib 902 of the button 9 moves towards a direction away from the riser 15, and the button 9 elastically extends out of the pulling block 14, so that the button 9 can continuously engage with the hook groove 801 of the unlocking slider 8.

As shown in fig. 10, the pulling block 14 and the stopper 10 are both driven by an electromagnetic mechanism 16, the electromagnetic mechanism 16 has a groove structure 17 matching with the stopper 10, the stopper 10 has an insertion column 18 inserted into the groove structure 17, and when the groove structure 17 moves, the insertion column 18 is driven by the groove structure 17 to move; when the electromagnetic mechanism 16 drives the pulling block 14 to move towards the first state, the limiting block 10 moves to the unblocking state under the driving of the electromagnetic mechanism 16.

As shown in fig. 11, the peach heart structure of the peach heart piece 5 includes: the peach-heart-shaped door comprises a peach-heart limiting groove 501 and a peach-heart limiting block 502, wherein the peach-heart limiting groove 501 is of a peach-heart-shaped structure, a first accommodating groove 503 is formed in one end, facing the door inner direction, of the peach-heart limiting groove 501, and a second temporary accommodating groove 504 and a third temporary accommodating groove 505 which are symmetrically arranged are formed in one end, facing the door outer direction, of the peach-heart limiting groove 501; the peach-heart limiting block 502 is located at the center of the peach-heart limiting groove 501, a notch 506 with an outward opening is formed in the peach-heart limiting block 502, and a moving channel of the clamping rod 3 is formed around the peach-heart limiting groove 501 on the peach-heart limiting block 502.

As shown in fig. 11, the peach-heart limiting block 502 has a first pointed end 507 facing the first receiving groove 503, the first pointed end 507 is offset from a center line of the first receiving groove 503, specifically, as shown in fig. 11, the first pointed end 507 is offset from the center line of the first receiving groove 503 towards the upper side, and thus when the clamping rod 3 moves out of the first receiving groove 503, the clamping rod can move in the peach-heart limiting groove 501 according to a clockwise track, thereby ensuring the locking and unlocking of the peach-heart piece 5.

As shown in fig. 11, one end of the peach-heart limiting groove 501 facing the door-outward direction is further provided with a second pointed end 508 facing the groove, the second pointed end 508 deviates from the center line of the groove of the peach-heart limiting block 502, specifically, as shown in fig. 11, the second pointed end 508 deviates from the center line of the groove downwards, so that when the clamping rod 3 moves out of the groove, the clamping rod can move in the peach-heart limiting groove 501 according to a clockwise track, thereby ensuring the locking and unlocking of the peach-heart 5.

As shown in fig. 11, one side of the second pointed end 508 close to the center line of the concave groove of the peach-heart stopper 502 is inclined, that is, as shown in fig. 11, the upper side of the second pointed end 508 is inclined, so that the clamping rod 3 moving out of the concave groove can smoothly enter the third temporary holding groove 505. The other side of the second tip 508 is a horizontal structure, so that the clamping rod 3 removed from the groove can be prevented from turning over into the second temporary holding groove 504.

As shown in fig. 11, the two sides of the groove on the heart stopper 502 have different heights, and specifically, the height of the groove facing to one side of the second temporary holding groove 504 is higher, so as to be convenient for receiving the hook removed from the second temporary holding groove 504; the height of the groove toward one side of the third temporary holding groove 505 is lower, which facilitates the hook to smoothly leave the groove and move toward the third temporary holding groove 505.

Principle of operation

As shown in fig. 12 and 13, before the door hook 11 is inserted into the door lock, the cam 1 is in the unlocking position under the action of the torsion spring, and the limit push member 2 is in the unlocking position under the action of the limit push member spring. At this time, the second bending end 302 of the fastening rod 3 extends into the first receiving groove 503 of the peach-heart structure.

As shown in fig. 14 and 15, when the door hook 11 is inserted into the door lock, the door hook 11 contacts with the bottom surface of the limit pushing part 2, so as to drive the limit pushing part 2 to move towards the inside of the door lock, and in the process that the sliding abutting part 13 moves along with the limit pushing part 2, one end of the sliding abutting part 13 contacts with the horizontal surface 102 of the cam 1, and the other end of the sliding abutting part 13 abuts against the abutting end 401 of the locking slider 4, so as to drive the cam 1 to rotate towards the inside of the door lock. At this time, the second bending end 302 of the fastening rod 3 moves along the peach-heart limiting groove 501 of the peach-heart structure toward the second temporary holding groove 504.

As shown in fig. 16 and 17, when the hook structure 101 of the cam 1 locks the door hook 11, the limit push part 2 is located at the locking position, and in this position, one end of the slide push part 13 contacts with the horizontal surface 102 of the cam 1, and the other end of the slide push part 13 contacts with the contact end 401 of the locking slider 4, so as to block the rotation of the cam 1 and lock the cam 1 at the locking position. At this time, the second bending end 302 of the blocking rod 3 is clamped into the notch 506 of the peach-heart structure by the peach-heart structure, and under the action of the blocking rod 3, the peach-heart structure cannot move towards the door outer direction, that is, the limit pushing member 2 cannot move towards the unlocking position, and the cam 1 is kept at the locking position.

As shown in fig. 18, when the door hook 11 is inserted into the door lock again, the door hook 11 pushes the stopper pusher 2 again in the door-inside direction, and the stopper pusher 2 moves in the door-inside direction along the horizontal surface 102 of the door hook 11. At this time, the heart structure moves, so that the second bending end 302 of the clamping rod 3 moves towards the third temporary accommodating groove 505 along the heart limiting groove 501 of the heart structure. When the door hook 11 is loosened, the limiting pushing piece 2 moves towards the outside of the door under the action of the limiting pushing piece spring, when the limiting pushing piece 2 moves to exceed the rotating shaft of the cam 1, the sliding pushing piece 13 gradually releases the butt on the cam 1, the cam 1 rotates towards the unlocking position under the action of the torsion spring, and therefore the door hook 11 can be separated from the door lock. At this time, the second bending end 302 of the latch lever 3 moves along the peach-heart limiting groove 501 of the peach-heart structure toward the first receiving groove 503, and finally returns to the state shown in fig. 13.

As shown in fig. 19, the cam 1 is in the locking position and the hook structure 101 of the cam 1 locks the door hook 11. The limit pushing piece 2 is located at the locking position, the second bending end 302 of the clamping rod 3 is clamped into the notch 506 of the peach-shaped piece 5, the limit pushing piece 2 cannot move towards the unlocking position under the action of the clamping rod 3, and the cam 1 is kept at the locking position. The locking slider 4 is located at the first position, and the locking slider 4 is in abutment with the cam 1 through the slide abutting piece 13. At this time, although the pushing rod 7 abuts on the locking slider 4, the stopper 10 is still in the retracted state at the rear end of the pushing rod 7, the stopper 10 does not lock the pushing rod 7, and the pushing rod 7 can be driven to move toward the rear end. At this time, forced unlocking may be performed, that is, as shown in fig. 20, when the door panel is pushed from the inside to the outside of the door, the door hook 11 is directly moved toward the outside of the door. At this time, the cam 1 is forced to rotate toward the outside of the door by the pulling force of the door hook 11, and the cam 1 drives the lock slider 4 to move toward the second position during the rotation. As shown in fig. 19, when the locking slide 4 is driven by the cam 1 to move towards the second position, the unlocking pull rod 6 on the locking slide 4 moves together with the locking slide 4, and the unlocking end 601 of the unlocking pull rod 6 can drive the unlocking slide 8 to move towards the unlocking state, so that the unlocking slide 8 releases the block on the peach-heart-shaped piece 5, and the peach-heart-shaped piece 5 rotates under the action of the top block 12. As shown in fig. 21, after the peach-shaped core 5 rotates under the action of the top block 12, the second bending end 302 of the clamping rod 3 located in the groove of the peach-shaped core 5 removes the groove, the clamping rod 3 no longer limits the limiting pushing member 2, and the limiting pushing member 2 moves towards the unlocking position under the action of the spring, so that the cam 1 is further unlocked, the cam 1 rotates to the unlocking position under the action of the torsion spring, and forced unlocking or internal unlocking is completed.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. A push-type door lock, comprising:

the cam (1) is rotatably connected in the shell and provided with an opening matched with the door hook (11), and the cam (1) is provided with an unlocking position after the opening rotates outwards and a locking position after the opening rotates inwards; one side of the opening of the cam (1) is a hook structure (101) suitable for being inserted into the door hook (11), and the other side of the opening is a horizontal plane (102);

the limiting pushing piece (2) is movably connected in the shell, has a locking position which moves inwards to enable the cam (1) to be abutted at a locking position, and also has an unlocking position which moves outwards to enable the cam (1) to be rotated and reset to an unlocking position; a sliding groove (201) with one end facing the horizontal plane (102) of the cam (1) is arranged on the limiting pushing piece (2); a peach-heart structure is further arranged on the limiting pushing piece (2), and a notch (506) with an opening facing the outside of the door is formed in the peach-heart structure;

the clamping rod (3) is provided with bending structures at two ends, wherein a first bending end (301) is rotatably connected in the shell, a second bending end (302) extends into the peach-heart structure, and the second bending end (302) is suitable for being clamped in a notch (506) of the peach-heart structure;

a locking slider (4) movably connected in the housing, having a first position for abutting the cam (1) at the locking position, and having a second position for moving in a direction away from the cam (1) to allow the cam (1) to rotate to the unlocking position; -an abutment end (401) on the locking slider (4) facing the horizontal plane (102) of the cam (1);

the sliding pushing and supporting piece (13) is inserted in a sliding groove (201) of the limiting pushing piece (2) in a sliding mode and moves between the locking position and the unlocking position along with the limiting pushing piece (2), when the limiting pushing piece (2) is located at the locking position, one end of the sliding pushing and supporting piece (13) is abutted to a horizontal plane (102) of the cam (1), and the other end of the sliding pushing and supporting piece (13) is abutted to an abutting end (401) of the locking sliding block (4);

the limiting block (10) is movably connected in the shell, has a blocking state for blocking the locking slide block (4) at the first position after extending out, and also has a blocking releasing state for enabling the locking slide block (4) to move to the second position after retracting;

the pushing and abutting rod (7) is connected in the shell in a sliding mode perpendicular to the moving path of the locking sliding block (4), the front end of the pushing and abutting rod (7) is suitable for abutting against the locking sliding block (4), and the rear end of the pushing and abutting rod is suitable for abutting against the limiting block (10); when the push-and-hold rod (7) moves towards the direction close to the locking slide block (4), the limiting block (10) is suitable for extending out and blocking the rear end of the push-and-hold rod (7); when the limiting block (10) retracts to the blocking-releasing state, the pushing and abutting rod (7) is suitable for moving towards the direction far away from the locking sliding block (4);

and the pushing and abutting rod spring is connected with the pushing and abutting rod (7) and has biasing force for driving the pushing and abutting rod (7) to move towards the direction close to the locking sliding block (4).

2. The pressing type door lock according to claim 1, wherein the front end of the pushing rod (7) is provided with a sliding groove (201) matched with the locking slider (4), the sliding groove (201) is provided with a bottom wall (701) and a side wall (702), the bottom wall (701) is an inclined surface, and the side wall (702) is a vertical surface;

the locking slider (4) is provided with a protruding end (402) which is suitable for extending into the sliding groove (201) of the pushing and abutting rod (7), the bottom surface of the protruding end (402) is in sliding fit with the bottom wall (701) of the sliding groove (201), and the side surface of the protruding end (402) is in sliding fit with the side wall (702) of the sliding groove (201).

3. The push type door lock according to claim 2, wherein the front end of the push-against rod (7) is further provided with an extending end (703) matched with the limit push piece (2), and the extending end (703) is provided with an extending surface (704);

the limiting pushing piece (2) is provided with a blocking block (202) matched with the extending end (703), and when the limiting pushing piece (2) is located at an unlocking position, the blocking block (202) is abutted against an extending surface (704) of the extending end (703) of the pushing and supporting rod (7), so that the pushing and supporting rod (7) cannot move towards a direction close to the locking sliding block (4);

when the limiting pushing piece (2) is in the locking position, the blocking piece (202) leaves the moving path of the extending end (703), so that the pushing and supporting rod (7) can move towards the direction close to the locking sliding block (4).

4. The touch-type door lock of claim 3, wherein the extended surface (704) is an inclined surface.

5. The push type door lock according to any one of claims 1 to 4, wherein a peach-heart piece (5) is rotatably connected to the position limiting push piece (2), and a peach-heart structure is arranged on the peach-heart piece (5);

further comprising: the ejecting block (12) is movably connected in the shell, an elastic piece is connected to the ejecting block (12), and the ejecting block (12) has a driving force which pushes the peach-heart piece (5) towards one side under the action of the elastic piece;

the unlocking slide block (8) is movably connected in the shell, the unlocking slide block (8) is suitable for blocking the other side, opposite to the top block (12), of the peach-heart piece (5), and the unlocking slide block (8) is in an unlocking state of removing the blocking of the peach-heart piece (5) after moving.

6. The touch-type door lock of claim 5, further comprising: and one end of the unlocking pull rod (6) is connected to the locking sliding block (4), the other end of the unlocking pull rod is an unlocking end (601), and the unlocking end (601) is provided with an inclined surface which is suitable for being matched with the unlocking sliding block (8).

7. The touch-type door lock of claim 5, further comprising: the pulling block (14) is connected in the shell in a sliding mode perpendicular to the moving path of the unlocking slide block (8), a button (9) is arranged on the pulling block (14), and the button (9) is provided with an arc-shaped outer wall (901) matched with the unlocking slide block (8);

the rear end of the unlocking slide block (8) is provided with a hook groove (801) matched with the arc-shaped outer wall (901) of the button (9), and the inner side surface of the hook groove (801) is provided with an inclined surface;

the pulling block (14) is provided with a first state which drives the unlocking slide block (8) to move towards the unlocking state after moving, and the pulling block (14) is also provided with a second state which enables the unlocking slide block (8) to continue to block towards the peach-heart piece (5) after moving.

8. The touch-type door lock of claim 7, wherein the button (9) is elastically retractable into the pull block (14), and a tilted rib (902) is further connected to a side wall (702) of the button (9);

a vertical plate (15) matched with the inclined rib (902) is arranged in the shell;

when the pulling block (14) moves towards the first state, the inclined rib (902) of the button (9) is in contact with the vertical plate (15), the button (9) is gradually retracted into the pulling block (14) under the action of the vertical plate (15), and finally the button is disengaged from the hook groove (801) of the unlocking slide block (8), so that the unlocking slide block (8) can reset towards the peach-heart piece (5);

when pulling piece (14) orientation when the second state moves, button (9) diagonal rib (902) orientation is kept away from the direction of riser (15) moves, button (9) elasticity stretches out pulling piece (14), makes button (9) can continue with collude groove (801) of unblock slider (8) cooperate.

9. The touch-type door lock of claim 8, further comprising: the pulling block (14) is driven by the electromagnetic mechanism (16), and the limiting block (10) is driven by the electromagnetic mechanism (16);

when the electromagnetic mechanism (16) drives the pulling block (14) to move towards the first state, the limiting block (10) moves to a blocking releasing state under the driving of the electromagnetic mechanism (16).