A door handle capable of automatic locking and unlocking

Abstract

The application discloses a door lock handle capable of being automatically locked and unlocked, and relates to the technical field of door lock handles.The door lock handle comprises a handle base and an end stop, a lock catch, a lock hook and a handle are sequentially and rotatably installed on the handle base, a first elastic mechanism for driving the lock catch to reset and a second elastic mechanism for driving the lock hook to reset are further installed on the handle base, a clamping groove is formed in the lock catch, the inner side of the end stop is provided with a clamping block capable of being clamped into the clamping groove, the front end of the lock hook can hook the rear end of the lock catch when the clamping block is clamped into the lock catch, and the front end of the handle is overlapped with the rear end of the lock hook.The door lock handle can realize the unlocking of the lock while the door is opened, and the locking of the door while the door is closed, and thus the independent unlocking and locking actions are not needed, and the operation is simple.

Description

Technical Field

[0001] This invention relates to the field of door lock handle technology, and in particular to a door lock handle that can automatically lock and unlock. Background Technology

[0002] Many scenarios and products have doors. When closing the door, it is required that the door can be locked tightly and not loosened. When opening the door, the locking device needs to be released so that the door can be opened smoothly. Therefore, door lock handle devices are usually installed on the door.

[0003] Currently, door lock handle devices on the market can be divided into two categories: 1. The locking device and handle are separate devices. The handle can be embedded, external, or even handle-less. A separate action is required to unlock or lock the door when opening or closing. 2. The locking device and handle are integrated, but it does not support automatic unlocking when opening or automatic locking when closing. Again, a separate action is required to unlock or lock the door when opening or closing. Neither of these two types of door lock handle devices can achieve the function of automatically unlocking when opening and automatically locking when closing, making operation cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide a door lock handle that can automatically lock and release, aiming to solve the technical problem that existing door lock handles cannot automatically release when opening the door and automatically lock when closing the door, and the operation is cumbersome.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] An automatically locking and unlocking door handle includes a handle base and an end stop. A latch, a hook, and a handle are sequentially mounted on the handle base. The handle base also includes a first elastic mechanism for resetting the latch and a second elastic mechanism for resetting the hook. The latch has a slot, and the inner side of the end stop has a locking block that can engage with the slot. The front end of the hook can hook the rear end of the latch when the locking block engages with the latch, and the front end of the handle overlaps the rear end of the hook. This invention achieves simultaneous unlocking and locking of the door upon opening, eliminating the need for a separate unlocking action, and simultaneous locking and locking of the door upon closing, eliminating the need for a separate locking action, making it easy to operate.

[0007] Preferably, the lock hook includes a mounting part, a hook-shaped part disposed at the front end of the mounting part, and a pressure-receiving part disposed at the rear end of the mounting part. The lock buckle is provided with a limiting protrusion adapted to the hook-shaped part. The limiting protrusion is provided to ensure that when the door is closed, when the lock buckle is pushed to the inside of the hook-shaped part by the end stop, the limiting protrusion is hooked by the hook-shaped part, locking the end stop onto the handle seat.

[0008] Preferably, the handle includes a connecting part, a pressure head disposed at the front end of the connecting part, and a handle disposed at the rear end of the connecting part, with the pressure head overlapping the pressure receiving part. When the door is opened, the pressure head and the pressure receiving part cooperate to cause the hook-shaped part to release the latch, and the latch is reset under the action of the first elastic mechanism, thus completing the unlocking.

[0009] Preferably, the front end of the handle base has a first groove for inserting a locking block, the end stop includes a padlock part and a fixing part, the locking block is disposed on the fixing part, and the back of the handle base has a second groove for inserting the fixing part. The first groove allows the locking block to pass through the first groove and enter the locking slot. The second groove allows the fixing part to enter the second groove when the door is closed, preventing the fixing part from interfering with closing and opening the door.

[0010] Preferably, the padlock part has a first padlock hole, and the handle base has a second padlock hole that matches the first padlock hole. When locking the door, the padlock can be passed through the first padlock hole and the second padlock hole to complete the locking operation.

[0011] Preferably, the pressure head is provided with a limiting protrusion, and a baffle is slidably mounted on the handle seat. The baffle has a limiting part that matches the limiting protrusion, and a third elastic mechanism is provided inside the handle seat to drive the baffle away from the limiting protrusion. A handle cover is fastened to the handle seat, and a lock cylinder is rotatably mounted on the handle cover. A limiting plate is coaxially mounted on the lock cylinder, and a protrusion abutting against the baffle is provided on one side of the limiting plate. When locking the door, rotating the lock cylinder drives the limiting plate to rotate, and the protrusion rotates to abut against the baffle, restricting the movement of the baffle. The baffle moves forward to abut against the limiting protrusion, restricting the swing of the handle. When unlocking, rotating the lock cylinder drives the limiting plate to rotate, and the protrusion rotates to move away from the baffle. The baffle moves backward under the drive of the third elastic mechanism, and the baffle moves backward to offset the limiting protrusion, no longer restricting the swing of the handle. This invention supports two locking methods: lock cylinder locking and padlock locking.

[0012] Preferably, the rear end of the handle base is an arc-shaped portion, and the swing center of the arc-shaped portion coincides with the swing center of the handle. The front end of the handle has an arc-shaped groove that matches the arc-shaped portion. The arc-shaped groove prevents the handle base from interfering with the rotation of the handle. Furthermore, the cooperation between the arc-shaped groove and the arc-shaped portion guides the rotation of the handle.

[0013] Preferably, a first pin and a second pin are fixedly connected to the handle base. The latch is rotatably mounted on the first pin, and the lock hook is rotatably mounted on the second pin. The first elastic mechanism is a first torsion spring mounted on the first pin and the latch, and the second elastic mechanism is a second torsion spring mounted on the second pin and the lock hook. The first torsion spring is used to drive the latch to reset so that it is not hooked by the lock hook when the door is opened, and the second torsion spring is used to drive the lock hook to hook the latch when the door is closed.

[0014] Preferably, the third elastic mechanism is a compression spring. Two spaced-apart mounting protrusions are fixed to the baffle. One end of the compression spring is mounted on the handle cover, and the other end is fitted onto the two mounting protrusions. The compression spring drives the baffle to move backward to the offset limit protrusions when unlocking, without restricting the rotation of the handle.

[0015] Preferably, the pressure head is provided with an arc-shaped protrusion that presses against the pressure-receiving part. The arc-shaped protrusion can prevent damage to the pressure-receiving part.

[0016] In summary, the beneficial effects of this invention are:

[0017] The door lock handle of this invention automatically releases when the door is opened and automatically locks when the door is closed, making it easy to operate. Furthermore, this invention supports both lock cylinder locking and padlock locking. The limiting protrusion ensures that when the door is closed, the latch is pushed to the inside of the hook-shaped part by the end stop, and the limiting protrusion is hooked by the hook-shaped part, locking the end stop onto the handle seat. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a door lock handle that can automatically lock and unlock according to the present invention;

[0019] Figure 2 This is a schematic diagram of the back of a door lock handle that can automatically lock and unlock according to the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a door lock handle that can automatically lock and unlock (door locked state) according to the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of a door lock handle that can automatically lock and unlock (when the door is not fully open) according to the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a door lock handle that can automatically lock and unlock (with the door fully open) according to the present invention;

[0023] Figure 6 This is a structural diagram of the handle and handle cover;

[0024] Figure 7 This is a cross-sectional structural diagram of the lock cylinder.

[0025] In the diagram, the components are: handle base 1, first groove 10, second groove 11, second padlock hole 12, baffle 13, limiting part 130, compression spring 131, mounting protrusion 132, arc-shaped part 14, end stop 2, locking block 20, padlock part 21, first padlock hole 210, fixing part 22, door body 3, cabinet body 4, latch 5, slot 50, limiting protrusion 51, first pin 52, first torsion spring 520, and first mounting groove. 53, Lock hook 6, Mounting part 60, Hook-shaped part 61, Pressure-bearing part 62, Second pin 63, Second torsion spring 630, Second mounting groove 64, Handle 7, Connecting part 70, Pressing head 71, Limiting stop protrusion 710, Arc-shaped protrusion 711, Handle 72, Arc-shaped groove 720, Handle cover 8, Lock cylinder 80, Limiting plate 81, Protrusion 810, Limiting surface 811, Locking bolt 82, Mounting plate 83, Door lock 9. Detailed Implementation

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] The orientations mentioned in this specification refer to the orientation of the door lock handle of the present invention when it is working normally, and do not limit its orientation during storage and transportation. They only represent relative positional relationships and do not represent absolute positional relationships.

[0028] like Figures 1 to 7 As shown, a door lock handle that can automatically lock and unlock includes a handle base 1 and an end stop 2. The handle base 1 is installed on the door body 3, and the end stop 2 is installed on the cabinet body 4. A latch 5, a hook 6, and a handle 7 are rotatably installed on the handle base 1 in sequence. The handle base 1 is also equipped with a first elastic mechanism for resetting the latch 5 and a second elastic mechanism for resetting the hook 6. The latch 5 has a slot 50. The inner side of the end stop 2 is provided with a block 20 that can be inserted into the slot 50. When the front end of the hook 6 is engaged with the latch 5 by the block 20, it can hook the rear end of the latch 5. The front end of the handle 7 overlaps the rear end of the hook 6.

[0029] When opening the door: Pull handle 7 to rotate it counterclockwise by a certain angle. The front end of handle 7 presses against the rear end of lock hook 6, causing lock hook 6 to rotate clockwise, thereby releasing lock 5. Lock 5, under the action of the first elastic mechanism and the overall opening trend of door 3, releases end stop 2. In this way, the lock is released at the same time as the door is opened, without the need for additional independent unlocking actions.

[0030] When closing the door: the locking block 20 of the end stop 2 enters the locking groove 50 of the latch 5 and pushes the latch 5 to rotate. When the door is closed, the latch 5 is pushed by the end stop 2 to a position where it can be hooked by the locking hook 6. At this time, under the action of the second elastic mechanism, the locking hook 6 remains hooked to the latch 5, and the latch 5 remains hooked to the end stop 2. This achieves locking the door while closing, without the need for an additional independent locking action. The door lock handle of the present invention realizes the function of automatically releasing when opening the door and automatically locking when closing the door, which is simple to operate.

[0031] The handle base 1 is fixedly connected to a first pin 52 and a second pin 63. A latch 5 is rotatably mounted on the first pin 52, and a hook 6 is rotatably mounted on the second pin 63. The first elastic mechanism is a first torsion spring 520 mounted on the first pin 52 and the latch 5, and the second elastic mechanism is a second torsion spring 630 mounted on the second pin 63 and the hook 6. The first torsion spring 520 is fitted onto the first pin 52. The latch 5 has a first mounting groove 53, and one torsion bar of the first torsion spring 520 is installed in the first mounting groove 53. The first torsion spring 520 is used to drive the latch 5 to reset so that it is not hooked by the hook 6 when the door is opened. The second torsion spring 630 is fitted onto the second pin 63. The hook 6 has a second mounting groove 64, and one torsion bar of the second torsion spring 630 is installed in the second mounting groove 64. The second torsion spring 630 is used to drive the hook 6 to hook the latch 5 when the door is closed.

[0032] The locking hook 6 includes a mounting part 60, a hook-shaped part 61 located at the front end of the mounting part 60, and a pressure-receiving part 62 located at the rear end of the mounting part 60. The mounting part 60, the hook-shaped part 61, and the pressure-receiving part 62 are integrally formed. The mounting part 60 is rotatably mounted on the second pin 63. The latch 5 is provided with a limiting protrusion 51 that matches the hook-shaped part 61. The limiting protrusion 51 ensures that when the door is closed, when the latch 5 is pushed to the inside of the hook-shaped part 61 by the end stop 2, the limiting protrusion 51 is hooked by the hook-shaped part 61, locking the end stop 2 onto the handle seat 1.

[0033] The handle 7 includes a connecting part 70, a pressing head 71 located at the front end of the connecting part 70, and a handle 72 located at the rear end of the connecting part 70. The connecting part 70 is rotatably mounted on the handle base 1. There are various rotatable connection installation methods, which will not be described in detail here. The pressing head 71 is stacked on the pressure receiving part 62. When the door is opened, the pressing head 71 presses down on the pressure receiving part 62, and the hook-shaped part 61 swings to release the latch 5. The latch 5 is reset under the drive of the first elastic mechanism and the door opening, thus completing the unlocking.

[0034] As a preferred embodiment, the pressure head 71 is provided with an arc-shaped protrusion 711 that presses against the pressure-receiving part 62. The arc-shaped protrusion 711 can prevent damage to the pressure-receiving part 62.

[0035] In a preferred embodiment, the front end of the handle base 1 has a first groove 10 for inserting the locking block 20. The end stop 2 includes a padlock part 21 and a fixing part 22. The locking block 20 is disposed on the fixing part 22. The back of the handle base 1 has a second groove 11 for inserting the fixing part 22. When closing the door, the locking block 20 passes through the first groove 10 and pushes the latch 5. The locking block 20 enters the slot 50, and the latch 5 enters the area where the latch hook 6 can hook. The first groove 10 allows the locking block 20 to pass through and enter the slot 50. The second groove 11 allows the fixing part 22 to enter the second groove 11 when closing the door, preventing the fixing part 22 from interfering with closing and opening the door.

[0036] In a preferred embodiment, the padlock part 21 has a first padlock hole 210, and the handle base 1 has a second padlock hole 12 that matches the first padlock hole 210. When locking the door, the padlock can be passed through the first padlock hole 210 and the second padlock hole 12 to complete the locking operation.

[0037] As a further improvement of the present invention, the pressure head 71 is provided with a limiting stop protrusion 710, and a baffle 13 is slidably installed on the handle seat 1. The two inner sides of the handle seat 1 are fixedly connected with slide rails, and the two sides of the baffle 13 slide on the slide rails. The handle cover 8 is fastened to the handle seat 1, and the inner side of the handle cover 8 abuts against the side of the baffle 13 away from the handle seat 1, so that the baffle 13 can slide along the slide rail in the handle seat 1. There are many ways of sliding installation, which will not be described in detail here. The baffle 13 is provided with a limiting part 130 that matches the limiting protrusion 710. The handle seat 1 is provided with a third elastic mechanism that drives the baffle 13 away from the limiting protrusion 710. A handle cover 8 is fastened to the handle seat 1 and is bolted to the handle seat 1. A lock cylinder 80 is rotatably mounted on the handle cover 8. A limiting plate 81 is coaxially mounted on the lock cylinder 80 and is fastened to the lock cylinder 80 by screws and bolts 82. One side of the limiting plate 81 is provided with a protrusion 810 that abuts against the baffle 13. When locking the door, the locking cylinder 80 can be rotated to drive the limiting plate 81 to rotate. The protrusion 810 then rotates to abut against the baffle 13, restricting the movement of the baffle 13. The baffle 13 moves forward to abut against the limiting protrusion 710, restricting the swing of the handle 7. When unlocking, rotating the lock cylinder 80 causes the limiting plate 81 to rotate, and the protrusion 810 rotates accordingly to move away from the baffle 13. The baffle 13 moves backward under the drive of the third elastic mechanism, and the baffle 13 moves backward to offset the limiting protrusion 710, no longer restricting the swing of the handle 7. This invention supports two locking methods: locking the door with the lock cylinder 80 and locking the door with a padlock.

[0038] The third elastic mechanism is a compression spring 131. Two spaced-apart mounting protrusions 132 are fixedly attached to the baffle 13. One end of the compression spring 131 is mounted on the handle cover 8, and the other end of the compression spring 131 is fitted onto the two mounting protrusions 132. In this embodiment, a mounting plate 83 is fixedly attached to the handle cover 8, and one end of the compression spring 131 is bonded to the mounting plate 83. In other embodiments, two spaced-apart mounting blocks are fixedly attached to the mounting plate 83. The mounting blocks are offset from the mounting protrusions 132, and one end of the compression spring 131 is fitted onto the two mounting blocks. Limiting surfaces 811 are provided on both sides of the limiting plate 81. The distance between the limiting surface 811 and the center of the limiting plate 81 is less than the diameter of the limiting plate 81. The distance between the protrusion 810 and the center of the limiting plate 81 is greater than the diameter of the limiting plate 81. The two limiting surfaces 811 are parallel to each other and perpendicular to the protrusion 810. When the lock cylinder 80 is not needed to lock the door, the protrusion 810 of the limiting plate 81 is located at the rear end face of the vertical baffle 13, and the rearward movement of the baffle 13 is not restricted. The baffle 13 moves backward under the drive of the compression spring 131 until it abuts against one of the limiting surfaces 811. The compression spring 131 is used to drive the baffle 13 to move backward to offset the limiting protrusion 710 when unlocking, without restricting the rotation of the handle 7.

[0039] In a preferred embodiment, the rear end of the handle base 1 is an arc-shaped portion 14, the swing center of which coincides with the swing center of the handle 7. The front end of the handle 72 has an arc-shaped groove 720 that matches the arc-shaped portion 14. Preferably, the handle 72 extends away from the outer side of the handle base 1 to the outer side of the handle cover 8, and the rear end of the handle cover 8 is an arc-shaped portion corresponding to the arc-shaped groove 720. The arc-shaped groove 720 prevents the handle base 1 from interfering with the rotation of the handle 7. Furthermore, the arc-shaped groove 720 and the arc-shaped portion 14 work together to guide the rotation of the handle 7.

[0040] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A door lock handle capable of automatic locking and unlocking, comprising a handle base and an end stop, characterized in that, The handle base is rotatably mounted with a buckle, a hook and a handle in sequence. The handle base is also equipped with a first elastic mechanism for driving the buckle to reset and a second elastic mechanism for driving the hook to reset. The buckle has a slot, and the inner side of the end block has a block that can be inserted into the slot. When the hook is inserted into the buckle, the front end of the hook can hook the rear end of the buckle. The front end of the handle overlaps the rear end of the hook. The locking hook includes a mounting part, a hook-shaped part disposed at the front end of the mounting part, and a pressure-receiving part disposed at the rear end of the mounting part. The locking buckle is provided with a limiting protrusion adapted to the hook-shaped part. The handle includes a connecting part, a pressure head disposed at the front end of the connecting part, and a handle disposed at the rear end of the connecting part, wherein the pressure head is stacked on the pressure-receiving part; The pressure head is provided with a limiting protrusion, and a baffle is slidably installed on the handle seat. The baffle is provided with a limiting part that matches the limiting protrusion. The handle seat is provided with a third elastic mechanism that drives the baffle away from the limiting protrusion. A handle cover is fastened to the handle seat, and a lock cylinder is rotatably installed on the handle cover. A limiting plate is coaxially installed on the lock cylinder, and a protrusion that abuts against the baffle is provided on one side of the limiting plate. The rear end of the handle base is an arc-shaped part, and the swing center of the arc-shaped part is consistent with the swing center of the handle. The front end of the handle is provided with an arc-shaped groove that matches the arc-shaped part.

2. A door lock handle capable of automatic locking and unlocking as described in claim 1, characterized in that, The front end of the handle base has a first groove for inserting the locking block. The end stop includes a padlock part and a fixing part. The locking block is set on the fixing part. The back of the handle base has a second groove for inserting the fixing part.

3. A door lock handle capable of automatic locking and unlocking as described in claim 2, characterized in that, The padlock part has a first padlock hole, and the handle base has a second padlock hole that matches the first padlock hole.

4. A door lock handle capable of automatic locking and unlocking as described in claim 1, characterized in that, The handle seat is fixedly connected to a first pin and a second pin. The latch is rotatably mounted on the first pin, and the hook is rotatably mounted on the second pin. The first elastic mechanism is a first torsion spring mounted on the first pin and the latch, and the second elastic mechanism is a second torsion spring mounted on the second pin and the hook.

5. A door lock handle capable of automatic locking and unlocking as described in claim 1, characterized in that, The third elastic mechanism is a compression spring. Two spaced mounting protrusions are fixedly attached to the baffle. One end of the compression spring is mounted on the handle cover, and the other end of the compression spring is fitted onto the two mounting protrusions.

6. A door lock handle capable of automatic locking and unlocking as described in claim 1, characterized in that, The pressure head is provided with an arc-shaped protrusion that presses against the pressure-receiving part.

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