Push-pull type door lock structure

Abstract

The invention provides a push-pull type door lock structure which comprises a handle, a front seat, a rear seat and a lock body, the lock body comprises a latch bolt assembly, a push-pull assembly and a locking assembly, the latch bolt assembly comprises a latch bolt and a sliding rack, the front seat and the rear seat are each provided with a deflector rod in a penetrating mode, one end of each deflector rod is connected with the handle, and the other end of each deflector rod is movably connected with the push-pull assembly; the push-pull assembly comprises a pull sliding sleeve, a push sliding sleeve, a pull shifting block and a push shifting block; the locking assembly comprises a sliding lock rod, external force acts on a lever handle, the lever handle drives a shifting rod to shift a push sliding sleeve and a pull sliding sleeve, the push sliding sleeve drives a push-pull block to act, the pull sliding sleeve drives a pull block to act, and the push-pull block and the pull block interact to enable a latch bolt to rotate in a reversing mode to achieve door opening. After the door is closed, the latch bolt is locked by abutting the sliding lock rod against the sliding rack. By means of the door opening device, the problem that an existing rotary door opening mode is inconvenient can be solved.

Description

[0001] This invention is a divisional application of a Chinese patent application submitted to the China Patent Office on January 20, 2019, with application number 201910050793.0 and invention name “A Sliding Door Lock Structure”. Technical Field

[0002] The invention relates to the technical field of door lock structures, and in particular to a door lock structure for a push-pull type switch door. Background Art

[0003] At present, most common household indoor door locks in daily life use rotating handles to open the door. When the safety is not locked, the door handle needs to be rotated to open the door, whether indoors or outdoors. This way of opening the door does not conform to people's behavior habits. People are more accustomed to opening and closing the door by pushing and pulling the door handle; especially in some special circumstances, such as carrying heavy objects in both hands, it is very inconvenient to use the rotating door opening method. Summary of the invention

[0004] In view of the above problems, an object of the present invention is to provide a push-pull door lock structure to solve the inconvenience of the existing rotary door opening method.

[0005] The present invention provides a push-pull door lock structure, comprising: a handle and a front seat arranged on one side of a door leaf, another handle and a rear seat arranged on the other side of the door leaf, and a lock body arranged inside the door leaf, wherein the lock body comprises an inclined tongue assembly, a push-pull assembly and a locking assembly, wherein the inclined tongue assembly comprises an inclined tongue and a sliding rack, wherein:

[0006] The front seat and the rear seat are both provided with a lever, one end of the lever is connected to the handle, and the other end is movably connected to the push-pull assembly;

[0007] The push-pull assembly includes: a pull sleeve, a push sleeve embedded in the pull sleeve, a pull block in contact with the pull sleeve, and a push block in contact with the pull block; the locking assembly includes a sliding lock rod, wherein:

[0008] An external force acts on the handle, and the handle drives the lever to move the push sleeve and the pull sleeve, and the push sleeve drives the push block to move, and the pull sleeve drives the pull block to move, and the push block and the pull block interact with each other to make the inclined tongue rotate in the opposite direction to open the door;

[0009] After the door is closed, the sliding locking rod abuts against the sliding rack to achieve locking of the oblique tongue.

[0010] In addition, a preferred solution is that the lever comprises a front lever and a rear lever, wherein:

[0011] The front lever passes through the front seat, one end of the front lever is connected to a handle provided on one side of the door leaf, and the other end is movably connected to the push-pull assembly;

[0012] The rear lever passes through the rear seat, one end of the rear lever is connected to a handle arranged on the other side of the door leaf, and the other end is movably connected to the push-pull assembly.

[0013] In addition, a preferred solution is that an external force acts on the handle, the handle drives the front lever to move the push sleeve, the push sleeve drives the push block to move, and the handle drives the rear lever to move the pull sleeve, and the pull sleeve drives the pull block to move.

[0014] In addition, a preferred solution is that the lock body further comprises a box cover, and a card slot and a slide slot are arranged in the box cover; wherein,

[0015] The latch bolt assembly also includes a fixed seat arranged in the slot, a pinion gear meshing with the sliding rack, and a latch bolt return spring; wherein,

[0016] The sliding rack is limited to move in the sliding groove, a push rod is arranged at one end of the sliding rack, a locking protrusion is arranged in the middle of the sliding rack, and a rack is arranged at the other end of the sliding rack;

[0017] The inclined tongue reset spring is arranged between the fixing seat and the push rod to provide a reset force for the inclined tongue to be reset;

[0018] The push rod passes through the fixing seat and supports the inclined tongue, and the rack is meshed with the pinion.

[0019] In addition, a preferred solution is that the locking assembly includes: a shift peach that contacts the sliding lock rod, a lock rod return spring, and a shift peach return spring arranged on one side of the shift peach; wherein,

[0020] The sliding lock rod comprises a locking rod at the upper end and a locking rod shifting block at the lower end which abuts against the shifting nut, wherein;

[0021] The lock rod reset spring is sleeved on the locking rod, and the shifting disk reset spring provides a reset force for the shifting disk.

[0022] In addition, a preferred solution is that the locking rod rises or falls under the action of the locking rod shift block and the shifting peach, wherein when the locking rod rises, it contacts the locking protrusion to achieve locking of the oblique tongue.

[0023] In addition, a preferred solution is that the push-pull assembly further includes a sliding sleeve return spring and a shift block return spring, wherein:

[0024] The sliding sleeve return spring is arranged at the front end of the pulling sliding sleeve, and the pushing sliding sleeve and the pulling sliding sleeve are returned to their original positions by the sliding sleeve return spring.

[0025] In addition, a preferred solution is that a push slide is provided at the rear end of the push slide sleeve, and a pull slide is provided at the rear end of the pull slide sleeve;

[0026] A protruding push piece is arranged at the upper end of the push block, a first rotating shaft is arranged in the middle of the push block, and a first transmission surface is arranged on the side of the push block;

[0027] A protruding pull sheet is provided at the upper end of the pull block, a second rotating shaft is provided in the middle of the pull block, a second transmission surface is provided on one side of the second rotating shaft, and an inclined tongue block is provided on the other side of the second rotating shaft;

[0028] The upper end of the push-pick sheet contacts the push-slide sheet, and the upper end of the pull-pick sheet contacts the pull-slide sleeve;

[0029] The first transmission surface is in contact with the second transmission surface, and the oblique tongue clamping block is clamped on the protrusion at the rear of the oblique tongue.

[0030] In addition, a preferred solution is that the push-pull assembly further includes a shift block return spring, wherein:

[0031] The shift block reset spring is installed above the pull block, and the oblique tongue clamping block clamps the oblique tongue through the shift block reset spring.

[0032] In addition, a preferred solution is that the lock body further includes a lock body outer lining plate and a box bottom assembly, and the first rotating shaft and the second rotating shaft are fixed on the box bottom assembly.

[0033] It can be seen from the above technical scheme that the push-pull door lock structure provided by the present invention drives the lever to move the push sliding sleeve and the pull sliding sleeve through the handle, the push sliding sleeve drives the push-pull block to move, the pull sliding sleeve drives the pull-pull block to move, and the push-pull block and the pull-pull block interact with each other to make the inclined tongue reverse rotation to achieve door opening; the inclined tongue is locked by the contact between the sliding lock rod and the sliding rack; thereby solving the inconvenience problem of the existing rotary door opening method.

[0034] In order to achieve the above and related purposes, one or more aspects of the present invention include the features that will be described in detail later. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easy to understand. In the accompanying drawings:

[0036] Figure 1 It is a three-dimensional schematic diagram of a push-pull door lock structure according to the first embodiment of the present invention;

[0037] Figure 2 It is a partial exploded schematic diagram of a push-pull door lock structure according to the first embodiment of the present invention;

[0038] Figure 3 It is a structural schematic diagram of a lock body according to Embodiment 1 of the present invention;

[0039] Figure 4 A schematic diagram of the structure of an inclined tongue according to an embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the structure of a pull block according to an embodiment of the present invention;

[0041] Figure 6 Schematic diagram of the structure of the lock body according to the second embodiment of the present invention.

[0042] Reference numerals include:

[0043] 1.Hold hands;

[0044] 2. front seat, 21. front lever;

[0045] 3. Pillion seat, 31. Rear lever;

[0046] 4. lock body, 41. lock body outer lining, 411. oblique tongue hole, 412. square tongue hole, 42. box cover, 421. card slot, 422. slide slot;

[0047] 44, box bottom assembly, 441, box bottom, 442, lock body inner lining plate, 443, column nail;

[0048] 45. oblique tongue assembly, 451. oblique tongue, 452. sliding rack, 4521. push rod, 4522. locking protrusion, 453. pinion, 454. fixing seat, 455. oblique tongue return spring;

[0049] 46. ​​Push-pull assembly, 461. Push sleeve, 4611. Push slide, 462. Pull sleeve, 4621. Pull slide, 463. Push-pull block, 4631. Push-pull slide, 4632. First rotating shaft, 4633. First transmission surface, 464. Pull-pull block, 4641. Pull-pull slide, 4642. Second rotating shaft, 4643. Second transmission surface, 4644. Oblique tongue block, 465. Sleeve return spring, 466. Pull-pull block return spring;

[0050] 47. Locking assembly, 473. Pulley, 474. Sliding locking rod, 4741. Locking rod, 4742. Locking rod shift block, 475. Pulley return spring, 476. Locking rod return spring.

[0051] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0052] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0053] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] like Figures 1 to 3As shown, the push-pull door lock structure provided by the present invention includes a handle 1 and a front seat 2 arranged on one side of the door leaf, another handle 1 and a rear seat 3 arranged on the other side of the door leaf, and a lock body 4 arranged inside the door leaf, wherein the lock body 4 includes the inclined tongue assembly 45, a push-pull assembly 46 and a locking assembly 47, wherein the inclined tongue assembly includes an inclined tongue 451 and a sliding rack 452, wherein the front seat 2 and the rear seat 3 are both penetrated by a lever, one end of the lever is connected to the handle 1, and the other end is movably connected to the push-pull assembly 46; the push-pull assembly 46 includes: a pull sleeve 462, an insert in the The push sleeve 461 in the pull sleeve 462, the pull block 464 in contact with the pull sleeve 462, and the push block 463 in contact with the pull block 464; the locking assembly 47 includes a sliding lock rod 474, wherein an external force acts on the handle 1, and the handle 1 drives the lever to move the push sleeve 461 and the pull sleeve 462, the push sleeve 462 drives the push block 464 to move, the pull sleeve 462 drives the pull block 464 to move, and the push block 463 interacts with the pull block 464 to make the inclined tongue 451 reverse rotation to open the door.

[0056] Specifically, the push-pull door lock structure includes a handle 1, a front seat 2, a rear seat 3 and a lock body 4. The front seat 2 passes through the front lever 21, and the rear seat 3 passes through the rear lever 31. One end of the front lever 21 is connected to the handle 1 provided on one side of the door leaf, and the other end is movably connected to the push-pull assembly 46; the rear seat 3 passes through the rear lever 31, and one end of the rear lever 31 is connected to the handle 1 provided on the other side of the door leaf, and the other end is movably connected to the push-pull assembly 46; the lock body 4 includes a lock body outer lining plate 41, a box cover 42, a box bottom assembly 44, a latch assembly 45, a push-pull assembly 46 and a locking assembly 47. The box cover 42 is provided with a card slot 421 and a slide slot 422; the lock body box bottom assembly 44 is welded by the box bottom 441 and the lock body inner lining plate 442; the lock body outer lining plate 41 is provided with an oblique tongue hole 411 and a square tongue hole 412, and a plurality of studs 443 are fixed at the corresponding positions of the box bottom 441.

[0057] like Figures 3 to 6 As shown, the oblique tongue assembly 45 includes an oblique tongue 451, a sliding rack 452, a pinion 453, a fixing seat 454 and an oblique tongue reset spring 455. The oblique tongue 451 is provided with a protrusion 4511; the fixing seat 454 is placed in the box bottom 441 and is fixed with the slot 421 of the box cover 42; a push rod 4521 extends from one end of the sliding rack 452, and a locking protrusion 4522 is provided in the middle of the sliding rack 452; the push rod 4521 passes through the side wall of the fixing seat 454 and is pressed against the rear of the oblique tongue 451, the rack on the sliding rack 452 is meshed with the pinion 453, and the sliding rack 452 can slide along the slide slot 422; the oblique tongue reset spring 455 is clamped between the fixing seat 454 and the push rod 4521.

[0058] The push-pull assembly 46 includes a push sleeve 461, a pull sleeve 462, a push-pull block 463, a pull-pull block 464, a sleeve return spring 465 and a pull-pull block return spring 466; the push sleeve 461 is provided with a push slide 4611 at the rear end, and a pull slide 462 is provided with a pull slide 4621 at the rear end. The push sleeve 461 is embedded in the pull sleeve 462, and the sleeve return spring 465 is arranged at the front end of the push sleeve 461 and the pull sleeve 462, so that the push sleeve 461 and the pull sleeve 462 can be reset; the push-pull block 463 is provided with a push-pull piece 4631 at the upper end, a first rotating shaft 4632 in the middle, and a first transmission surface 4633 on the side, and a pull-pull piece 4631 is convex at the upper end of the pull-pull block 464, a first rotating shaft 4632 is provided in the middle, and a first transmission surface 4633 is provided on the side, and a pull-pull piece 4631 is convex at the upper end of the pull-pull block 464 641, a second rotating shaft 4642 is provided in the middle, a second transmission surface 4643 is provided on one side of the second rotating shaft 4642, and an inclined tongue block 4644 is provided on the other side; the upper end of the push-push plate 4631 contacts the push slide 461, and the upper end of the pull-push plate 4641 contacts the pull-slide sleeve 462; the first rotating shaft 4632 and the second rotating shaft 4642 are fixed on the column nail 443 of the box bottom 441, the first transmission surface 4633 contacts the second transmission surface 4643, the inclined tongue block 4644 is clamped on the protrusion 4511 at the rear of the inclined tongue 551, and the shift block reset spring 466 is installed above the pull-push block 464 to keep the inclined tongue block 4644 clamped on the inclined tongue 451.

[0059] The first embodiment of the present invention provides a technical solution in which the latch bolt assembly 45 is arranged in the middle of the lock body 4 and the push-pull assembly 46 is arranged in the upper part of the lock body 4 (eg Figure 3 In another embodiment, the inclined bolt assembly 45 is arranged at the upper part of the lock body 4, and the push-pull assembly 46 is arranged at the middle part of the lock body 4.

[0060] like Figure 6 As shown, the locking assembly 47 of the present invention includes a shift peach 473 that contacts the sliding locking rod, a sliding locking rod 474, a shift peach reset spring 475 and a locking rod reset spring 476 arranged on one side of the shift peach, the sliding locking rod 474 is provided with a locking rod 4741 on the upper part and a locking rod shift block 4742 on the lower part, the locking rod reset spring 476 is sleeved on the locking rod 4741, and the shift peach reset spring 476 provides a reset force for the shift peach 473; the locking rod shift block 4742 cooperates with the shift peach 473 to make the locking rod 4741 rise or fall, and when the locking rod 4741 rises, its upper end contacts the locking protrusion 4522 in the middle of the sliding rack 452 to lock the inclined tongue 551.

[0061] During the use of the present invention, when people open the door by pushing the handle 1, the lever 21 (or 31) on the handle 1 drives the push sliding sleeve 461 to slide to the left, and the push sliding piece 4611 drives the push sliding piece 4631 to push the push sliding block 463 to rotate counterclockwise around the first rotating shaft 4632, and the first transmission surface 4633 drives the second transmission surface 4643 to drive the pull sliding block 464 to rotate clockwise around the second rotating shaft 4642. At this time, the inclined tongue blocking block 4644 disengages from the protrusion 4511 on the inclined tongue 451 and no longer blocks the inclined tongue 451, and the inclined tongue 451 changes direction to realize the opening of the door.

[0062] When people open the door by pulling the handle 1, the lever 21 (or 31) on the handle 1 drives the pull slide 4621 to drive the pull slide sleeve 462 to move to the left, and the pull slide sleeve 462 drives the pull plate 4641 to drive the pull block 464 to rotate clockwise around the second rotating shaft 4642. At this time, the inclined tongue block 4644 disengages from the protrusion 4511 on the inclined tongue 451 and no longer blocks the inclined tongue 451. The inclined tongue 451 changes direction to open the door.

[0063] The present invention mainly pushes and pulls the handle 1, and the lever 21 (or 31) on the front seat 2 and the rear seat 3 to push the push sleeve 461 or the pull sleeve 462, that is, the external force acts on the handle 1, the handle 1 drives the front lever 21 to push the push sleeve 461, the push sleeve 461 drives the push block 463 to move, and the handle 1 drives the rear lever 31 to move the pull sleeve 462, the pull sleeve 462 drives the pull block 464 to move, thereby driving the push block 463 and the pull block 464 to move, so that the oblique tongue block 4644 at one end of the pull block 464 no longer blocks the protrusion 4511 of the oblique tongue 451, the oblique tongue 451 is reversed to realize the opening of the door, and the sliding lock rod 474 in the locking assembly 47 can realize the locking of the lock body 4. The oblique tongue assembly 45 of the present invention adopts a transmission mode in which the sliding rack 452 is meshed with the pinion 453, which can achieve an excellent mute effect and a stable transmission. The push-pull door opening process of the present invention is extremely convenient and quick, and is suitable for various occasions and a variety of people. The safety is extremely high, and no quality problems will occur after long-term use, and the invention has the advantage of stable performance.

[0064] The push-pull door lock structure proposed in accordance with the present invention is described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the push-pull door lock structure proposed in accordance with the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A push-pull door lock structure, comprising: A handle and a front seat are arranged on one side of the door leaf, another handle and a rear seat are arranged on the other side of the door leaf, and a lock body is arranged inside the door leaf, wherein the lock body includes an inclined tongue assembly, a push-pull assembly and a locking assembly, and the inclined tongue assembly includes an inclined tongue and a sliding rack, wherein: The front seat and the rear seat are both provided with a lever, one end of which is connected to the handle, and the other end of which is movably connected to the push-pull assembly; it is characterized in that: The push-pull assembly includes: a pull sleeve, a push sleeve embedded in the pull sleeve, a pull block in contact with the pull sleeve, and a push block in contact with the pull block; the locking assembly includes a sliding lock rod, wherein: An external force acts on the handle, and the handle drives the lever to move the push sleeve and the pull sleeve, and the push sleeve drives the push block to move, and the pull sleeve drives the pull block to move, and the push block and the pull block interact with each other to make the inclined tongue rotate in the opposite direction to open the door; After the door is closed, the sliding locking rod abuts against the sliding rack to achieve locking of the oblique tongue.

2. The push-pull door lock structure according to claim 1, characterized in that: The lever comprises a front lever and a rear lever, wherein: The front lever passes through the front seat, one end of the front lever is connected to a handle provided on one side of the door leaf, and the other end is movably connected to the push-pull assembly; The rear lever passes through the rear seat, one end of the rear lever is connected to a handle arranged on the other side of the door leaf, and the other end is movably connected to the push-pull assembly.

3. The push-pull door lock structure according to claim 2, characterized in that: External force acts on the handle, and the handle drives the front lever to move the push sleeve, and the push sleeve drives the push block to move, and the handle drives the rear lever to move the pull sleeve, and the pull sleeve drives the pull block to move.

4. The push-pull door lock structure according to claim 1, characterized in that: The lock body also includes a box cover, in which a card slot and a slide slot are arranged; wherein, The latch bolt assembly also includes a fixed seat arranged in the slot, a pinion gear meshing with the sliding rack, and a latch bolt return spring; wherein, The sliding rack is limited to move in the sliding groove, a push rod is arranged at one end of the sliding rack, a locking protrusion is arranged in the middle of the sliding rack, and a rack is arranged at the other end of the sliding rack; The inclined tongue reset spring is arranged between the fixing seat and the push rod to provide a reset force for the inclined tongue to be reset; The push rod passes through the fixing seat and supports the inclined tongue, and the rack is meshed with the pinion.

5. The push-pull door lock structure according to claim 4, characterized in that: The locking assembly includes: a shifting peach that contacts the sliding locking rod, a lock rod return spring, and a shifting peach return spring disposed on one side of the shifting peach; wherein, The sliding lock rod comprises a locking rod at the upper end and a locking rod shifting block at the lower end which abuts against the shifting nut, wherein; The lock rod reset spring is sleeved on the locking rod, and the shifting disk reset spring provides a reset force for the shifting disk.

6. The push-pull door lock structure according to claim 5, characterized in that: The locking rod rises or falls under the action of the locking rod shifting block and the shifting peach, wherein when the locking rod rises, it contacts with the locking protrusion to lock the oblique tongue.

7. The push-pull door lock structure according to claim 1, characterized in that: The push-pull assembly also includes a sliding sleeve return spring and a shift block return spring, wherein: The sliding sleeve return spring is arranged at the front end of the pulling sliding sleeve, and the pushing sliding sleeve and the pulling sliding sleeve are returned to their original positions by the sliding sleeve return spring.

8. The push-pull door lock structure according to claim 7, characterized in that: A push slide is provided at the rear end of the push slide sleeve, and a pull slide is provided at the rear end of the pull slide sleeve; A protruding push piece is arranged at the upper end of the push block, a first rotating shaft is arranged in the middle of the push block, and a first transmission surface is arranged on the side of the push block; A protruding pull sheet is provided at the upper end of the pull block, a second rotating shaft is provided in the middle of the pull block, a second transmission surface is provided on one side of the second rotating shaft, and an inclined tongue block is provided on the other side of the second rotating shaft; The upper end of the push-pick sheet contacts the push-slide sheet, and the upper end of the pull-pick sheet contacts the pull-slide sleeve; The first transmission surface is in contact with the second transmission surface, and the oblique tongue clamping block is clamped on the protrusion at the rear of the oblique tongue.

9. The push-pull door lock structure according to claim 8, characterized in that: The push-pull assembly also includes a shift block return spring, wherein: The shift block reset spring is installed above the pull block, and the oblique tongue clamping block clamps the oblique tongue through the shift block reset spring.

10. The push-pull door lock structure according to claim 8, characterized in that: The lock body also includes a lock body outer lining plate and a box bottom assembly, and the first rotating shaft and the second rotating shaft are fixed on the box bottom assembly.

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