Push button door lock switch

Abstract

The application provides a press door lock switch, which comprises a base body, a shell, a lock hook provided with a reset torsion spring, a switch driving rod, a limiting block switch, a lock hook limiting block and a switch fixing support; the limiting block switch is linked with the switch driving rod through a positioning needle; one side of the limiting block switch is connected with the switch fixing support through a second spring; the lock hook is linked with the limiting block switch through the switch driving rod; when the lock hook rotates under the action of a door hook, the switch driving rod is linked and drives the limiting block switch to rotate through the positioning needle; the limiting block switch is matched with the lock hook limiting block through a lap joint structure; when the two are lapped, an action force preventing the reset of the lock hook is applied; when the two are separated, the action force preventing the reset of the lock hook is removed. The press door lock switch can realize door opening by pressing and can reduce the impact force and collision sound during unlocking, thereby improving the user experience.

Description

[Technical Field]

[0001] This invention relates to the technical field of door locks, and in particular to a push-button door lock switch. [Background Technology]

[0002] Many household appliances (such as washing machines, dryers, and washer-dryer combos) require door locks. When the appliance is running, the lock secures the door, preventing the user from manually opening it. When the appliance finishes running, the lock unlocks, allowing the user to open the door manually. For some handleless door designs, users cannot manually pull the handle to open the door and retrieve clothes.

[0003] To address the aforementioned issues, the invention patent with application number CN202221986608.2 discloses an electromagnetic door lock that uses a press detection signal switch and an electric opening module to enable electric opening after pressing. However, since it uses electrical operation instead of mechanical pressing, it cannot operate in the event of a power outage. [Summary of the Invention]

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a push-to-open door lock switch that can open the door by pressing, and can reduce the impact force and collision noise during unlocking, thereby improving the user experience.

[0005] To achieve the above objectives, this invention proposes a push-button door lock switch, comprising a base, a housing disposed on the base, and a lock hook mounted in the base and equipped with a return torsion spring. The top of the housing has a lock hole into which the lock hook can be inserted, and the lock hook is located below the lock hole. A movable switcher drive rod is installed inside the housing. When the lock hook rotates against the resistance of the return torsion spring under the action of the lock hook, the switcher drive rod moves under the rotation of the lock hook. The base also includes a limit block switcher, a lock hook limit block, and a switcher fixing bracket. The lock hook is linked to the limit block switcher via the switcher drive rod. The fixed bracket is movably mounted in the base body via a fourth spring. One side of the limit block switcher is connected to the switcher fixed bracket via a second spring. The locking hook limit block is installed between the limit block switcher and the switcher fixed bracket via a fifth spring. The limit block switcher cooperates with the locking hook limit block via an overlapping structure. The switcher drive rod is linked with the limit block switcher via a positioning pin, causing the limit block switcher to overlap or disengage from the locking hook limit block. When the two overlap, the locking hook limit block applies a force to the locking hook to prevent it from resetting. When the two disengage, the force preventing the locking hook from resetting is released.

[0006] Preferably, one end of the switcher drive rod is provided with a drive groove, and the other end is provided with a first spring. The switcher drive rod is movably installed in the housing through the first spring. The first spring applies a force to the switcher drive rod to move it away from the lock hook. The lock hook is provided with a drive protrusion that can cooperate with the drive groove. The lock hook is linked with the switcher drive rod through the drive protrusion.

[0007] Preferably, the positioning pin is telescopically mounted on the limit block switch via a third spring, and the switch drive rod is provided with a heart-shaped groove on the side facing the limit block switch that can cooperate with the positioning pin.

[0008] Preferably, the locking hook limiting block has a locking ramp and a driving ramp at one end facing the locking hook, and the locking hook is provided with a locking protrusion. When the locking hook rotates against the resistance of the reset torsion spring under the action of the door hook, the locking protrusion abuts against the driving ramp and applies a force to the locking hook limiting block to move towards the end away from the locking hook. When the locking ramp abuts against the locking protrusion, a force is applied to the locking hook to overcome the reset torsion spring and prevent it from resetting.

[0009] Preferably, the overlapping structure is a step provided on the limit block switcher. The step is used to prevent the locking hook limit block from resetting. The locking hook limit block is provided with a stepped groove that cooperates with the step. When the step of the limit block switcher overlaps with the stepped groove of the locking hook limit block, a force is applied to prevent the locking hook from resetting. When the locking hook limit block disengages from the overlap of the step, the force preventing the locking hook from resetting is released.

[0010] Preferably, the fourth spring is installed on one end of the switch fixing bracket facing away from the locking hook and is equipped with a positioning button.

[0011] The beneficial effects of this invention are as follows: Through the cooperation of the lock hook, switcher drive rod, limit block switcher, lock hook limit block, and switcher fixing bracket, this invention allows users to open the door by pressing the door cover when the door is closed, provided they need to retrieve or place clothing. The first step of the opening operation is triggered by pressing the door cover; during this process, the internal parts of the lock do not collide with each other, resulting in no collision noise. The second step involves the lock hook resetting under the action of the return torsion spring. Since the lock hook limit block provides only minimal resistance to the lock hook at this time, this process produces very little noise. Therefore, the impact force and collision noise during unlocking of this door lock switch are minimal, improving the user experience.

[0012] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0013] Figure 1This is a top view of a push-button door lock switch of the present invention in its initial state;

[0014] Figure 2 yes Figure 1 Schematic diagram of the BB-BB cross section;

[0015] Figure 3 This is a bottom view of the internal structure of the housing of a push-button door lock switch according to the present invention;

[0016] Figure 4 This is a schematic diagram of the internal structure of the base of a push-button door lock switch according to the present invention;

[0017] Figure 5 This is a top view of the internal structure of the base when the door is closed.

[0018] Figure 6 yes Figure 5 Schematic diagram of the BD-BD cross section;

[0019] Figure 7 This is a top view of a push-to-open door lock switch according to the present invention when the door is in the push-to-open state;

[0020] Figure 8 yes Figure 7 Schematic diagram of the BC-BC cross section;

[0021] Figure 9 This is a schematic diagram of the internal structure of the base when the door is in the push-open state;

[0022] Figure 10 This is a top view of the internal structure of the base when the door is in the push-open state;

[0023] Figure 11 This is an exploded view of a push-button door lock switch according to the present invention;

[0024] Figure 12 This is a schematic diagram of the structure of a lock hook for a push-button door lock switch according to the present invention;

[0025] Figure 13 This is a schematic diagram of the structure of a limit block switch for a push-button door lock switch according to the present invention;

[0026] Figure 14 This is a schematic diagram of the structure of a switcher drive rod for a push-to-open door lock switch according to the present invention;

[0027] Figure 15 This is a schematic diagram of the heart-shaped groove of a push-button door lock switch according to the present invention;

[0028] Figure 16 This is a schematic diagram of the structure of a lock hook limiting block for a push-button door lock switch according to the present invention.

Detailed Implementation Methods

[0029] See Figures 1 to 16 A push-button door lock switch of the present invention includes a base 1, a housing 10 disposed on the base 1, and a lock hook 2 installed in the base 1 and equipped with a return torsion spring 20. The top of the housing 10 has a lock hole 101 into which the door hook can be inserted. The lock hook 2 is located below the lock hole 101. A movable switcher drive rod 3 is installed in the housing 10. When the lock hook 2 rotates against the resistance of the return torsion spring 20 under the action of the door hook, the switcher drive rod 3 moves under the rotation of the lock hook 2. The base 1 also provides a limit block switcher 4, a lock hook limit block 6, and a switcher fixing bracket 7. The lock hook 2 is linked to the limit block switcher 4 through the switcher drive rod 3. The switcher fixing bracket 7 is movably installed in the base 1 by a fourth spring 70. One side of the limit block switcher 4 is connected by a... The second spring 40 is connected to the switcher fixing bracket 7. The locking hook limiting block 6 is installed between the limiting block switcher 4 and the switcher fixing bracket 7 via the fifth spring 60, and the spring force of the fifth spring 60 is less than the reset force of the reset torsion spring 20. The limiting block switcher 4 cooperates with the locking hook limiting block 6 through an overlapping structure. The switcher drive rod 3 is linked with the limiting block switcher 4 through the positioning pin 5. When the switcher drive rod 3 drives the limiting block switcher 4 to rotate against the resistance of the second spring 40 through the positioning pin 5, the limiting block switcher 4 and the locking hook limiting block 6 are overlapped or disengaged. When the two overlap, the locking hook limiting block 6 applies a force to the locking hook 2 to prevent it from resetting. When the two disengage, the locking hook limiting block 6 releases the force preventing the locking hook 2 from resetting.

[0030] Further, see Figure 8 , Figure 14 and Figure 15 One end of the switcher drive rod 3 is provided with a drive groove 31, and the other end is provided with a first spring 30. The switcher drive rod 3 is movably installed in the housing 10 through the first spring 30. The first spring 30 applies a force to the switcher drive rod 3 to move it away from the lock hook 2. The lock hook 2 is provided with a drive protrusion 21 that can cooperate with the drive groove 31. The lock hook 2 is linked with the switcher drive rod 3 through the drive protrusion 21.

[0031] Further, see Figure 8 , Figure 14 and Figure 15 The positioning pin 5 is retractably mounted on the limit block switcher 4 via a third spring 50. The switcher drive rod 3 has a heart-shaped groove 32 on its side facing the limit block switcher 4, which mates with the positioning pin 5. The heart-shaped groove 32 has a locking position and an unlocking position. (See reference...) Figure 15When the positioning pin 5 moves from position a of the heart-shaped groove 32 to position b, and then to position c (locked position), the locking hook 2 rotates clockwise under the action of the return torsion spring 20 until it is stopped by the locking inclined surface 61 of the locking hook limiting block 6, and the door closing action is completed. Figure 6 As shown. See also Figure 15 When the positioning pin 5 moves from c (locked position) to d (unlocked position), the positioning pin 5 drives the limit block switch 4 to continue rotating at a certain angle. At this time, the step 41 of the limit block switch 4 disengages from the stepped groove 62 of the locking hook limit block 6. Figure 10 As shown, the locking ramp 61 removes the obstruction to the reset of the locking hook 2.

[0032] Further, see Figure 2 , Figure 4 , Figure 6 and Figure 16 The locking hook limiting block 6 is mounted on the switch fixing bracket 7. The locking hook limiting block 6 has a locking inclined surface 61 and a driving inclined surface 63 at the end facing the locking hook 2. The locking hook 2 is provided with a locking protrusion 22. When the locking hook 2 rotates against the resistance of the return torsion spring 20 under the action of the door hook, the locking protrusion 22 abuts against the driving inclined surface 63, applying a force to the locking hook limiting block 6 to move it away from the end of the locking hook 2. When the locking inclined surface 61 abuts against the locking protrusion 22, it applies a force to the locking hook 2 to overcome the return torsion spring 20 and prevent it from resetting. In this embodiment, there are two locking protrusions 22.

[0033] Further, see Figure 5 , Figure 10 , Figure 13 and Figure 16 The overlapping structure is a step 41 provided on the limit block switch 4. The step 41 is used to prevent the locking hook limit block 6 from resetting. The locking hook limit block 6 is provided with a stepped groove 62 that cooperates with the step 41. When the step 41 of the limit block switch 4 overlaps with the stepped groove 62 of the locking hook limit block 6, a force is applied to prevent the locking hook 2 from resetting. Figure 6 As shown. When the locking hook limiting block 6 disengages from the step 41, it releases the force preventing the locking hook 2 from resetting, as... Figure 10 As shown.

[0034] Further, see Figure 8 and Figure 10 The fourth spring 70 is installed on one end of the switch fixing bracket 7 facing away from the locking hook 2, and is equipped with a positioning button 8. The positioning button 8 is installed in the groove between the base 1 and the housing 10, and the positioning button 8 also has a protruding edge to prevent it from coming out of the groove.

[0035] The working process of this invention:

[0036] Initial state:

[0037] See Figures 1 to 4 When the door hook is inserted and causes the lock hook 2 to flip, the force of the fourth spring 70 needs to be overcome to push the lock hook limiting block 6 to the right. The fourth spring 70 applies force to the switcher fixing bracket 7, which transmits the force to the limiting block switcher 4, then to the lock hook limiting block 6, and finally to the lock hook 2. The step 41 of the limiting block switcher 4 engages with the stepped groove 62 of the lock hook limiting block 6. The tail of the switcher drive rod 3 is equipped with a first spring 30, which allows the switcher drive rod 3 to move to the right, thus resetting the switcher drive rod 3.

[0038] Door closed:

[0039] See Figure 6 When the door hook is inserted at the position indicated by the arrow, it causes the lock hook 2 to rotate counterclockwise, which in turn causes the switch drive rod 3 to move to the left. The positioning pin 5 on the limit block switch 4 moves from position a to position b. Figure 15 As shown. After the door hook stops inserting, the lock hook 2 rotates clockwise under the action of the return torsion spring 20 until it stops rotating after being blocked by the locking inclined surface 61 of the lock hook limiting block 6. At this time, the driving protrusion 21 of the lock hook 2 separates from the driving groove 31 of the switcher driving rod 3, and the switcher driving rod 3 moves to the right under the action of the first spring 30. The positioning pin 5 moves from b to c, and the door closing action is completed. During the process from a to b, the positioning pin 5 drives the limiting block switcher 4 to rotate a certain angle. However, at this time, the limiting block switcher 4 and the lock hook limiting block 6 still remain in an overlapping state. The force of the fourth spring 70 still acts on the lock hook, preventing the lock hook 2 from continuing to rotate.

[0040] Push-open door status:

[0041] With the door closed, closing it again causes the door hook to continue inserting inward, causing the lock hook 2 to rotate counterclockwise. The lock hook 2 then drives the switcher drive rod 3 to continue moving to the left. The positioning pin 5 moves from c to d. During this process, the positioning pin 5 drives the limit block switcher 4 to continue rotating at a certain angle. At this time, the step 41 of the limit block switcher 4 disengages from the stepped groove 62 of the lock hook limit block 6, and the overlapping part of the two separates. The locking slope 61 of the lock hook limit block 6 no longer applies resistance to the lock hook 2, and the fourth spring 70 no longer acts on the lock hook limit block 6 (this process is as follows: the force of the fourth spring 70 directly acts on the switcher fixing bracket 7, and is transmitted to the limit block switcher 4 through the switcher fixing bracket 7. When the limit block switcher 4 and the lock hook limit block 6 are overlapping, the force is transmitted to the lock hook limit block 6 through the limit block switcher 4). After the closing action disappears, the lock hook 2 completes its reset under the action of the reset torsion spring 20, and the door opening is completed.

[0042] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A push-button door lock switch, comprising a base (1), a housing (10) disposed on the base (1), and a lock hook (2) installed in the base (1) and provided with a return torsion spring (20), wherein the top of the housing (10) has a lock hole (101) into which the lock hook can be inserted, and the lock hook (2) is located below the lock hole (101), characterized in that: A movable switcher drive rod (3) is installed inside the housing (10). When the lock hook (2) rotates against the resistance of the reset torsion spring (20) under the action of the door hook, the switcher drive rod (3) moves under the rotation of the lock hook (2). The base (1) is also provided with a limit block switcher (4), a lock hook limit block (6), and a switcher fixing bracket (7). The lock hook (2) is linked with the limit block switcher (4) through the switcher drive rod (3). The switcher fixing bracket (7) is movably installed in the base (1) through a fourth spring (70). One side of the limit block switcher (4) is connected to the switcher through a second spring (40). The device is connected to the fixing bracket (7). The locking hook limiting block (6) is installed between the limiting block switcher (4) and the switcher fixing bracket (7) through the fifth spring (60). The limiting block switcher (4) cooperates with the locking hook limiting block (6) through the overlapping structure. The switcher drive rod (3) is linked with the limiting block switcher (4) through the positioning pin (5) so that the limiting block switcher (4) and the locking hook limiting block (6) overlap or disengage. When the two overlap, the locking hook limiting block (6) applies a force to the locking hook (2) to prevent it from resetting. When the two disengage, the force preventing the locking hook (2) from resetting is released.

2. A push-button door lock switch as described in claim 1, characterized in that: One end of the switcher drive rod (3) is provided with a drive groove (31), and the other end is provided with a first spring (30). The switcher drive rod (3) is movably installed in the housing (10) through the first spring (30). The first spring (30) applies a force to the switcher drive rod (3) to move it away from the lock hook (2). The lock hook (2) is provided with a drive protrusion (21) that can cooperate with the drive groove (31). The lock hook (2) is linked with the switcher drive rod (3) through the drive protrusion (21).

3. A push-button door lock switch as described in claim 1, characterized in that: The positioning pin (5) is telescopically mounted on the limit block switcher (4) by a third spring (50), and the switcher drive rod (3) is provided with a heart-shaped groove (32) on the side facing the limit block switcher (4) that can cooperate with the positioning pin (5).

4. A push-button door lock switch as described in claim 1, characterized in that: The locking hook limiting block (6) has a locking inclined surface (61) and a driving inclined surface (63) at one end facing the locking hook (2). The locking hook (2) is provided with a locking protrusion (22). When the locking hook (2) rotates against the resistance of the reset torsion spring (20) under the action of the door hook, the locking protrusion (22) abuts against the driving inclined surface (63) and applies a force to the locking hook limiting block (6) to move it toward the end away from the locking hook (2). When the locking inclined surface (61) abuts against the locking protrusion (22), it applies a force to the locking hook (2) to overcome the reset torsion spring (20) to prevent it from resetting.

5. A push-button door lock switch as described in claim 1, characterized in that: The overlapping structure is a step (41) set on the limit block switch (4). The step (41) is used to prevent the locking hook limit block (6) from resetting. The locking hook limit block (6) is provided with a stepped groove (62) that cooperates with the step (41). When the step (41) of the limit block switch (4) overlaps with the stepped groove (62) of the locking hook limit block (6), a force is applied to prevent the locking hook (2) from resetting. When the locking hook limit block (6) disengages from the overlap of the step (41), the force preventing the locking hook (2) from resetting is released.

6. A push-button door lock switch as described in claim 1, characterized in that: The fourth spring (70) is installed on one end of the switch fixing bracket (7) facing away from the locking hook (2) and is equipped with a positioning button (8).

Images