Door lock self-locking structure and working method thereof

Abstract

The invention discloses a door lock self-locking structure and a working method thereof.The door lock self-locking structure comprises a handle assembly, a sliding button, a rotating piece, a guiding piece and a locking piece, a sliding groove is formed in an inside-door handle, the sliding button is in sliding fit with the sliding groove, and the sliding button is provided with a rotating driving piece; the rotating piece is rotationally arranged in the inside-door handle, the rotating shaft is connected with the rotating piece, the sliding button slides, and the rotating driving piece drives the rotating piece to rotate; the guide piece is arranged in the outside door handle; the connecting shell is provided with a limiting groove, the locking piece comprises a directional piece and a linear moving piece, the directional piece is arranged at the tail end of the rotating shaft, the linear moving piece is in insertion fit with the insertion groove, the linear moving piece is rotationally connected with the directional piece, and the directional piece abuts against the guide face of the guide piece; the connecting shell is provided with a limiting groove, the limiting groove is right opposite to the linear moving part, the rotating shaft rotates and drives the orientation part to rotate, and under the guiding effect of the guiding part, the linear moving part moves towards the limiting groove and is matched with the limiting groove in an inserted mode. By the adoption of the arrangement, when a user closes the door lock, the door lock can be reversely locked through the door handle, and the door handle has the advantage of being easy and convenient to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of door lock structures, and in particular relates to a door lock self-locking structure and a working method thereof. Background Art

[0002] Door lock safety has always been a highly concerned issue in life safety. In order to prevent others from unlocking and entering the door through improper behavior outside the door, self-locking door locks are usually used. Existing self-locking door locks are usually of two types: internal locking type and push-type: the internal locking type is to use a key to lock the door from the inside after locking the door; and the push-type is to press the button on the door handle inside the door after locking the door to limit the rotation of the handle to lock the door. However, from the perspective of usage habits, people often forget to lock the door or press the button at the center of the door handle after pulling the handle to lock the door, and there is also the problem of cumbersome operation. Therefore, there is room for improvement. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a door lock self-locking structure and a working method thereof, so that when the user closes the door lock, the door lock can be locked by the door handle, which has the advantage of easy operation.

[0004] The purpose of the present invention is achieved through the following technical solutions: A button-type door lock self-locking structure, comprising: A handle assembly, the handle assembly comprising an inner door handle, an outer door handle, a connecting shell and a rotating shaft, the inner door handle and the outer door handle are respectively arranged on both sides of the connecting shell, the connecting shell is embedded in the door, the middle part of the rotating shaft is rotatably connected to the connecting shell, the two ends of the rotating shaft are respectively connected to the inner door handle and the outer door handle, the outer door handle is provided with a slot, and the slot extends toward the connecting shell; A lock tongue control member, the lock tongue control member includes a U-shaped block and a sector gear, the connecting shell is provided with a slideway, the slideway extends along the door frame direction, the U-shaped block is slidably matched with the slideway, both inner walls of the U-shaped block are provided with teeth, the sector gear is connected to the rotating shaft, the sector gear is located in the U-shaped block, and the sector gear is meshed with the teeth of the U-shaped block; A sliding button, wherein the inner door handle is provided with a sliding groove, the sliding button is slidably adapted to the sliding groove, and the sliding button is provided with a rotating driving member; A rotating member, the rotating member is rotatably disposed in the inner door handle, the rotating shaft is connected to the rotating member, and when the sliding button is slid, the rotating driving member moves toward the rotating member and drives the rotating member to rotate; A guide member, the guide member is arranged in the outer door handle and is directly opposite to the rotating shaft; A locking member, wherein the connection housing is provided with a limiting slot, and the locking member comprises a directional member and a linear moving member, wherein the directional member is arranged at the end of the rotating shaft, and the linear moving member is plugged and matched with the slot so that the linear movement slides along the extension direction of the straight slot, and the linear moving member is rotatably connected with the directional member, and the directional member abuts against the guide surface of the guide member; The connecting shell is provided with a limiting groove, and the limiting groove is directly opposite to the linear moving part. The rotating shaft rotates and drives the directional part to rotate. Under the guiding action of the guiding part, the linear moving part moves toward the limiting groove and is plugged and adapted with the limiting groove.

[0005] Furthermore, the rotating member includes a gear, which is connected to the end of the rotating shaft, and the gear is rotatably connected to the door handle. The rotating driving member includes a connecting plate and an engaging member arranged at the end of the connecting plate. The end of the connecting plate away from the engaging member is connected to the sliding button, and the engaging member is engaged with the gear.

[0006] Furthermore, the engaging member includes an open groove, which extends along the length direction of the slide groove, and one inner wall of the open groove is provided with engaging teeth, and the engaging teeth of the open groove are engaged with the gear.

[0007] Furthermore, the guide member includes a circular base, which is coaxial with the rotating shaft, and the circular base has a protrusion protruding from the end face edge of the rotating shaft; a flat shaft is provided at the end of the rotating shaft, and the directing member includes a connecting seat, and the connecting seat is provided with a booster, an annular groove is formed between the connecting seat and the booster, the linear moving member is rotatably matched with the annular groove, the connecting seat and the booster are both provided with a socket adapted to be plugged into the flat shaft, and the connecting seat is provided with an arc-shaped protrusion on the end face of the guide member, and the arc-shaped protrusion is abutted against the edge of the circular base through the boosting action of the booster.

[0008] Furthermore, the booster member includes a symmetrical guide member and a symmetrical directing member, the symmetrical guide member is arranged on the inner wall of the outer door handle close to the connecting shell, the symmetrical guide member includes a circular ring, the circular ring is provided with a recessed portion, the recessed portion corresponds to the raised portion, and the shape and size of the recessed portion are the same as the shape and size of the raised portion, the symmetrical directing member includes a fixed seat, the fixed seat is provided with an arc-shaped protrusion on the end face facing the symmetrical guide member, the arc-shaped protrusion and the arc-shaped protrusion are symmetrically arranged about the annular groove, and the arc-shaped protrusion is against the annular end face of the circular ring.

[0009] Furthermore, the linear moving part includes a swivel, a hanging ear and a limit rod. The swivel is rotatably matched with the annular groove, the hanging ear is fixedly connected to the outer peripheral surface of the swivel, the limit rod is fixedly connected to the hanging ear, the outside door handle is provided with a positioning hole corresponding to the limiting groove, the positioning hole is communicated with the slot, the swivel is plugged and fitted with the slot, the hanging ear is plugged and fitted with the positioning hole, and when the shaft rotates, the limit rod is guided by the guide member and when the linear moving part moves toward the limiting groove, the limit rod is plugged with the limiting groove, thereby limiting the rotation of the outside door handle.

[0010] Furthermore, the circular base has two opposite raised portions, the connecting seat has two opposite arc-shaped protrusions, the circular ring has two opposite recessed portions, the fixing seat has two opposite arc-shaped protrusions, and the number of the hanging ears and the limiting rods are both two opposite.

[0011] Furthermore, the circular base is provided with a circular hole, the portion of the circular hole close to the connecting shell is plugged into the flat shaft, the end portion of the circular hole away from the connecting shell is left empty, and the outer door handle is provided with a cover covering the flat hole.

[0012] Furthermore, the locking tongue control component also includes a large gear and a small gear, the sector gear is rotatably connected to the inner bottom surface of the slide, the wheel surface of the sector gear is provided with a toothed groove, the small gear is plugged and adapted to the toothed groove, the large gear rotates coaxially with the rotating shaft, and the small gear is meshed with the large gear.

[0013] Furthermore, the lock tongue control component also includes two springs, and both ends of the U-shaped block are opened and closed with storage grooves, and the storage groove extends along a side away from the door frame. Two connecting blocks are provided on the inner bottom surface of the slide, and the two connecting blocks are respectively opposite to the notches of the two storage grooves, and the two springs respectively correspond to the two storage grooves. The spring is arranged in the storage groove, one end of the spring is connected to the connecting block, and the other end of the spring is connected to the inner bottom surface of the storage groove.

[0014] A working method of a door lock self-locking structure comprises the following steps: S10: Pull the door handle to close the door, use the finger to push the sliding button to drive the rotating driving member to slide synchronously, and use the meshing member of the rotating driving member to mesh with the gear of the rotating member, thereby driving the rotating shaft to rotate synchronously; S20: Under the guiding action of the guide member and the symmetrical guide member, when the arc-shaped protrusion passes through the raised portion of the guide member, the locking member as a whole will move toward the direction close to the connecting shell. At the same time, under the limiting action of the limit rod and the positioning hole when they are plugged in, the linear moving member will not rotate with the rotating shaft, and will be plugged and cooperated with the limit groove during the movement, thereby realizing the function of limiting the rotation of the inner door handle or the outer door handle and self-locking.

[0015] The present invention has the following beneficial effects: 1. The self-locking structure of the door lock of the present invention is provided with a sliding button, a rotating driving member and a rotating member in the door lock. When the sliding button is pushed, the rotating driving member is driven to slide and drive the rotating member to rotate, and the rotation of the rotating shaft is realized synchronously. During the rotation of the rotating shaft, the positioning member of the locking member is guided by the guide surface of the guide member, so that the locking member as a whole performs an ups and downs motion, and at the same time drives the linear moving member to move toward the limiting groove, and the linear moving member is plugged and matched with the limiting groove, so as to realize the self-locking function of the door lock. At the same time, since the sliding button is located on the door handle, the door lock can be reversed when the door is closed. Compared with the prior art that uses reverse locking keys and button-type reverse locking, the present invention can realize self-locking by means of a sliding button, so it has the advantages of simple and efficient operation and not easy to forget.

[0016] 2. The working method of the present invention is mainly based on the structure of the self-locking structure of the door lock. When closing the door, the user can slide the sliding button of the door handle. Under the slight rotation of the rotating shaft, i.e. the transmission action, the guiding action of the guide member and the symmetrical guide member is utilized to make the locking member perform a specific ups and downs motion. At the same time, the linear moving member moves toward the limiting groove under the limiting action and is plugged and adapted, thereby realizing the self-locking function of the door lock. Therefore, it has the advantages of simple operation and not easy to forget. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a diagram showing the disassembly and assembly status of the outer door handle of the present invention.

[0019] Figure 3 It is one of the exploded views of the present invention.

[0020] Figure 4 for Figure 2 Schematic diagram of the local structure.

[0021] Figure 5 This is the second explosion diagram of the present invention.

[0022] Figure 6 for Figure 4 Schematic diagram of the local structure.

[0023] Figure 7 It is the third explosion diagram of the present invention.

[0024] In the figure: 1, door handle inside; 11, slide groove; 12, slide button; 13, rotating drive member; 131, connecting plate; 132, opening groove; 14, rotating member; 15, rotating shaft; 151, flat shaft; 2, connecting shell; 21, limiting groove; 22, slideway; 3, door handle outside; 30, door cover; 31, guide member; 311, circular base; 312, raised part; 313, circular hole; 314, rotating column; 315, flat hole; 32, symmetrical guide member; 321, circular ring; 322, recessed part; 33. Annular wave groove; 34. Orienting member; 341. Connecting seat; 342. Arc-shaped protrusion; 35. Symmetrical orienting member; 351. Fixed seat; 352. Arc-shaped protrusion; 36. Annular groove; 37. Linear moving member; 371. Swivel; 372. Hanging ear; 373. Limit rod; 38. Positioning hole; 39. Slot; 4. Lock tongue control member; 41. U-shaped block; 411. Storage groove; 42. Fan-shaped gear; 421. Toothed groove; 43. Large gear; 44. Small gear; 45. Spring; 46. Connecting block. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The terms such as "upper", "inner", "middle", "left", "right" and "one" cited in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. The change or adjustment of their relative relationship shall also be regarded as the scope of the present invention without substantially changing the technical content.

[0026] In order to improve the user experience, the present invention can lock the door by itself or by reverse locking by the handle when closing the door, which can better improve the convenience and reduce the situation that the user forgets to reverse lock the door after closing the door. Therefore, a door lock self-locking structure is designed. The following is a detailed introduction to the door lock self-locking structure of the present invention: A door lock self-locking structure, such as Figures 1 to 7 As shown, it includes a handle assembly, a bolt control member 4, a sliding button 12, a rotating member 14, a guide member 31 and a locking member.

[0027] The handle assembly includes an inner door handle 1, an outer door handle 3, a connecting shell 2 and a rotating shaft 15. The inner door handle 1 and the outer door handle 3 both adopt a shell-type structure and have an inner cavity. The inner door handle 1 and the outer door handle 3 are respectively arranged on both sides of the connecting shell 2, and the connecting shell 2 is embedded in the door panel. The middle part of the rotating shaft 15 is rotatably connected to the connecting shell 2, and the two ends of the rotating shaft 15 are respectively connected to the inner door handle 1 and the outer door handle 3, so that when the inner door handle 1 or the outer door handle 3 is rotated, the other handle can also rotate synchronously with the rotating shaft 15.

[0028] The bolt control member 4 includes a U-shaped block 41 and a sector gear 42. The connecting housing 2 is provided with a slideway 22, which extends in the direction of the door frame. The U-shaped block 41 and the slideway 22 are slidably matched. The two inner walls of the U-shaped block 41 are provided with teeth. The sector gear 42 is connected to the rotating shaft 15. The sector gear 42 is located in the U-shaped block 41, and the sector gear 42 is meshed with the teeth of the U-shaped block 41. Therefore, when the inner door handle 1 or the outer door handle 3 is rotated forward or reversed, the rotating shaft 15 and the sector gear 42 can be rotated, and then the U-shaped block 41 is driven to extend or reset toward the door frame position by engaging the teeth of one inner side wall of the U-shaped block 41; wherein, the locking or releasing function of the door bolt of the door lock can be realized by extending the U-shaped block 41 in the direction of the door frame.

[0029] In this embodiment, the bolt control member 4 further includes a large gear 43 and a small gear 44, the sector gear 42 is rotatably connected to the inner bottom surface of the slideway 22, the wheel surface of the sector gear 42 is provided with a toothed groove 421, the small gear 44 is plugged and adapted to the toothed groove 421, the large gear 43 rotates coaxially with the rotating shaft 15, and the small gear 44 meshes with the large gear 43. Therefore, during the rotation of the rotating shaft 15, when the large gear 43 drives the small gear 44 to rotate, the rotation speed of the small gear 44 can be increased, thereby improving the efficiency of the U-shaped block 41 extending or resetting. Among them, the shape of the large gear 43 is also sector-shaped, so that the U-shaped block 41 can be reduced from being excessively extended or extended, so as to prevent the door lock from being damaged, thereby achieving the advantage of increasing the service life.

[0030] In this embodiment, the bolt control member 4 further includes two springs 45, and both ends of the U-shaped block 41 are opened and closed with a receiving groove 411, and the receiving groove 411 extends along a side away from the door frame. The inner bottom surface of the slideway 22 is provided with two connecting blocks 46, and the two connecting blocks 46 are respectively opposite to the notches of the two receiving grooves 411, and the two springs 45 correspond to the two receiving grooves 411 respectively. The spring 45 is arranged in the receiving groove 411, and one end of the spring 45 is connected to the connecting block 46, and the other end of the spring 45 is connected to the inner bottom surface of the receiving groove 411. Therefore, by providing the spring 45, the U-shaped block 41 can be automatically reset by utilizing the reset function of the spring 45 after the inner door handle 1 or the outer door handle 3 is rotated.

[0031] A sliding groove 11 is provided on the side of the inner door handle 1 close to the door panel, and a sliding button 12 is slidably adapted to the sliding groove 11, and the sliding button 12 is provided with a rotating driving member 13; a rotating member 14 is rotatably arranged in the inner door handle 1, and the end of the rotating shaft 15 is connected to the rotating member 14. When the sliding button 12 is slid, the rotating driving member 13 moves toward the rotating member 14 along the direction of the sliding groove 11 and drives the rotating member 14 to rotate.

[0032] The rotating member 14 includes a gear, which is connected to the end of the rotating shaft 15 by a screw or a pin. The gear is also rotatably connected to the door handle 1. The rotating driving member 13 includes a connecting plate 131 and an engaging member arranged at the end of the connecting plate 131. The end of the connecting plate 131 away from the engaging member is integrally connected to the sliding button 12. The engaging member is engaged with the gear. Therefore, when the sliding button 12 is pushed, the connecting plate 131 can be synchronously driven to move horizontally, and the engaging member is used to drive the gear and the rotating shaft 15 to rotate due to the engagement of the gears.

[0033] The engaging member includes an open groove 132 integrally connected to the connecting plate 131, the open groove 132 extends along the length direction of the slide groove 11, one inner wall of the open groove 132 is provided with engaging teeth, and the engaging teeth of the open groove 132 are engaged with the gear, thereby realizing the function of utilizing the connecting plate 131 and the opening to slide and drive the gear and the rotating shaft 15 to rotate.

[0034] The outer door handle 3 is provided with a slot 39, which extends toward the connecting housing 2. The guide member 31 is arranged in the slot 39 of the outer door handle 3 and is directly opposite to the rotating shaft 15. The guide member 31 includes a circular base 311, which is coaxial with the rotating shaft 15. The circular base 311 has a protrusion 312 protruding from the end edge of the rotating shaft 15. The number of the protrusions 312 is two opposite, so that the running edge of the circular base 311 forms a corresponding guide surface. The connecting housing 2 is provided with a limiting groove 21. The locking member includes a directional member 34 and a linear moving member 37. The directional member 34 is arranged at the other end of the rotating shaft 15. The linear moving member 37 is rotatably connected to the directional member 34, and the linear moving member 37 is plugged into the slot 39. The directional member 34 and the guide surface of the guide member 31 are against each other. The connecting shell 2 is provided with a limiting groove 21, and the limiting groove 21 is directly opposite to the linear moving part 37. The rotating shaft 15 rotates and drives the directional part 34 to rotate. Under the guiding action of the guide part 31, the linear moving part 37 moves back and forth in the direction of the limiting groove 21. When the linear moving part 37 is plugged and adapted with the limiting groove 21, the linear moving part 39 and the connecting shell 2 remain relatively fixed. At the same time, due to the consistency between the linear moving part 37 and the slot 39, the free rotation of the door handle 3 is limited, thereby achieving the self-locking function of the door lock.

[0035] In this embodiment, a flat shaft 151 is provided at the end of the rotating shaft 15, and the orienting member 34 includes a connecting seat 341, and the connecting seat 341 is connected to a booster by screw locking, and an annular groove 36 is formed between the connecting seat 341 and the booster. The linear moving member 37 rotates with the annular groove 36 to realize the relative movement between the linear moving member 37 and the connecting seat 341 and the circular base 311; at the same time, the connecting seat 341 and the booster are both provided with a socket that is plugged in and adapted to the flat shaft 151, and the end face of the connecting seat 341 facing the guide member 31 is provided with an arc-shaped protrusion 342, and the arc-shaped protrusion 342 is two opposite ones, and the top end of the arc-shaped protrusion 342 corresponds to the bottom end of the guide surface of the guide member 31, and the arc-shaped protrusion 342 is abutted against the edge of the circular base 311 through the boosting action of the booster. Therefore, in the process of the rotating shaft 15 synchronously driving the flat shaft 151 to rotate, under the guiding action of the guiding surface of the guide member 31, the directional member 34 performs an ups and downs motion. When the directional member 34 moves toward the direction close to the connecting shell 2, it also drives the linear moving member 37 to move toward the limiting groove 21 and plugs and adapts with the limiting groove 21, thereby limiting the free rotation of the door handle 3 outside, and then achieving the self-locking function of the door lock.

[0036] In this embodiment, the booster is in a relatively symmetrical structure with the positioning member and the guide member 31 to achieve the function of stable guidance. The booster includes a symmetrical guide member 32 and a symmetrical orientation member 35. The symmetrical guide member 32 is arranged on the inner wall of the outer door handle 3 near the connection shell 2. The symmetrical guide member 32 includes a circular ring 321. The circular ring 321 is provided with a recessed portion 322. The recessed portions 322 are two opposite to each other. The two recessed portions 322 correspond to the two protruding portions 312 respectively, and the shape and size of the recessed portions 322 are the same as the shape and size of the protruding portions 312. Therefore, an annular wave groove 33 is formed between the guide member 31 and the symmetrical guide member 32, so that the orientation member 34 and the symmetrical orientation member 35 can perform a stable and reciprocating undulating motion in the wave groove as a whole, and at the same time, the linear moving member 37 can be moved closer to or away from the limiting groove 21, thereby realizing the self-locking or release of the door lock.

[0037] The symmetrical orientation member 35 includes a fixed seat 351, and the fixed seat 351 is provided with an arc-shaped protrusion 352 on the end surface facing the symmetrical guide member 32. The arc-shaped protrusions 352 are two opposite to each other, and the arc-shaped protrusions 352 and the arc-shaped protrusions 342 are symmetrically arranged about the annular groove 36. The distance between the vertex of the arc-shaped protrusion 352 and the vertex of the arc-shaped protrusion 342 is equal to the distance between the guide surface of the guide member 31 and the guide surface of the symmetrical guide member 32, so as to realize the function of the positioning member and the symmetrical positioning member as a whole to slide and cooperate in the annular wave groove 33. Therefore, during the rotation of the rotating shaft 15, under the joint guiding action of the guide surface of the guide member 31 and the guide surface of the symmetrical guide member 32, the positioning member, the linear moving member 37 and the symmetrical positioning member as a whole can realize the function of ups and downs motion, and at the same time, the linear moving member 37 can be driven to move toward the limit groove 21, thereby realizing the function of the door lock self-locking.

[0038] In this embodiment, in order to realize the function of the linear moving member 37 overcoming the rotational movement of the rotating shaft 15 and moving in a directional manner toward the limiting groove 21, the linear moving member 37 includes a swivel 371, a lug 372 and a limiting rod 373. The swivel 371 is rotatably matched with the annular groove 36. There are two lugs 372, which are respectively arranged on the outer circumference of the two opposite sides of the swivel 371. There are two limiting rods 373, which correspond to the two lugs 372 respectively, and one end of the limiting rod 373 is fixedly connected to the lug 372. The slot 39 of the outer door handle 3 is cylindrical, and the outer door handle 3 is provided with a positioning hole 38 corresponding to the two lugs 372. The positioning hole 38 is connected to the slot 39, and the positioning hole 38 is directly opposite to the limiting groove 21. The swivel 371 is slidably matched with the slot 39. The two lugs of the linear moving member 37 are slidably matched with the two positioning holes 372, and the limiting rod 373 is placed in the positioning hole. Therefore, under the limiting action of the positioning hole 38 and the ear 372, during the rotation of the rotating shaft 15 and the flat shaft 151, the linear moving member 37 can be limited to rotate together. At the same time, when the arc-shaped protrusion 342 abuts against the protrusion 312 of the guide member 31, it will move upward, thereby driving the limiting rod 373 of the linear moving member 37 to move toward the limiting groove 21 and be plugged and adapted with the limiting groove 21, thereby realizing the self-locking function of the door lock.

[0039] It should be noted that the convex portion 312, the arc-shaped protrusion 342, the concave portion 322, and the arc-shaped protrusion 352 of the present invention are all set to two, which is mainly for the convenience of being applicable to the situation where the rotating shaft 15 rotates forward or reversely, that is, when the rotating shaft 15 rotates forward or reversely, the limiting rod 373 can be quickly plugged and adapted with the limiting groove 21, so as to realize the self-locking of the door lock. At the same time, the number of limiting rods 373 set in the linear moving member 37 of the present invention is two, which can mainly make the overall structure of the linear moving member 37 symmetrical and stable, so as to improve the stability of the limiting rod 373 in realizing the self-locking function of the door lock.

[0040] In addition, since the sliding button 12 is located in the door handle 1, the door may be locked by mistake in some special circumstances. For example, when a child is playing indoors or an adult operates the door by mistake, the sliding button 12 may be operated by mistake, causing the door to lock by itself. In order to allow outdoor personnel to promptly release the door from self-locking, the present invention also upgrades and transforms the door lock: a circular base 311 is provided with a circular hole 313, and the circular hole 313 is rotatably matched with a rotating column 314. The rotating column 314 is provided with a flat hole 315 corresponding to the flat shaft 151. The part of the flat hole 315 close to the connection shell 2 is plugged with the flat shaft 151, and the part of the flat hole 315 far from the connection shell 2 is left empty. At the same time, the handle part of the door handle 3 is provided with a cover 30 covering the flat hole 315. The cover 30 can be fixed with glue or integrally formed and set as a weak thin surface at the edge connection. Therefore, when the cover 30 is removed, it can be removed by forced demolition, and safety can be improved at the same time. After removing the face cover 30, outdoor personnel can insert a tool such as a wrench into the flat hole 315 to rotate it, thereby driving the rotating column 314, the flat shaft 151, and the rotating shaft 15 to rotate together, and the guiding effect of the guide surface of the guide member 31 realizes the forward and backward movement of the linear moving member 37, so that the limit rod 373 moves out of the limit groove 21, thereby realizing the function of releasing the self-locking of the door lock.

[0041] In summary, the present invention sets a sliding button 12, a rotating driving member 13 and a rotating member 14 in the door lock. When the sliding button 12 is pushed, the rotating driving member 13 is driven to slide and the rotating member 14 is driven to rotate, and the rotating shaft 15 is synchronously rotated. During the rotation of the rotating shaft 15, the positioning member of the locking member is guided by the guide surface of the guide member 31, so that the locking member as a whole performs an ups and downs motion, and at the same time drives the linear moving member 37 to move toward the limiting groove 21, and the linear moving member 37 is plugged and matched with the limiting groove 21, so as to realize the self-locking function of the door lock. At the same time, since the sliding button 12 is located on the door handle 1, when the door is closed, the door lock can be locked. Compared with the prior art that uses a locking key and a button-type locking method, the present invention can achieve self-locking by means of the sliding button 12, so it has the advantages of simple and efficient operation and not easy to forget. Example

[0042] A working method of a door lock self-locking structure, using the door lock self-locking structure as in Example 1, comprises the following steps: S10: Pull the door handle 1 to close the door, and use the finger to push the sliding button 12 to drive the rotating driving member 13 to slide synchronously, and use the meshing member of the rotating driving member 13 to mesh with the gear of the rotating member 14, so as to drive the rotating shaft 15 to rotate synchronously; S20: Under the guiding action of the guide member 31 and the symmetrical guide member 32, when the arc-shaped protrusion 342 passes through the raised portion 312 of the guide member 31, the locking member as a whole will move toward the direction close to the connecting shell 2. At the same time, under the limiting action of the limiting rod 373 and the positioning hole 38 when plugged in, the linear moving member 37 will not rotate with the rotating shaft 15, and will be plugged and matched with the limiting groove 21 during the movement, thereby realizing the function of limiting the rotation of the outer door handle 3 and self-locking.

[0043] To sum up, the working method of the present invention is mainly based on the structure of the self-locking structure of the door lock. When closing the door, the user can slide the sliding button 12 of the door handle 1. Under the slight rotation of the rotating shaft 15, that is, the transmission action, the guiding action of the guide member 31 and the symmetrical guide member 32 is utilized to make the locking member perform a specific ups and downs motion. At the same time, the linear moving member 37 moves toward the limiting groove 21 under the limiting action and is plugged and adapted, thereby realizing the self-locking function of the door lock. Therefore, it has the advantages of simple operation and not easy to forget.

[0044] The implementation methods of the present invention are not limited to this. According to the above content of the present invention, using common technical knowledge and customary means in the field, without departing from the above basic technical ideas of the present invention, the present invention can also make other various forms of modification, replacement or combination, all of which fall within the scope of protection of the present invention.

Claims

1. A door lock self-locking structure, characterized in that: include: A handle assembly, the handle assembly comprising an inner door handle, an outer door handle, a connecting shell and a rotating shaft, the inner door handle and the outer door handle are respectively arranged on both sides of the connecting shell, the connecting shell is embedded in the door, the middle part of the rotating shaft is rotatably connected to the connecting shell, the two ends of the rotating shaft are respectively connected to the inner door handle and the outer door handle, the outer door handle is provided with a slot, and the slot extends toward the connecting shell; A lock tongue control member, the lock tongue control member includes a U-shaped block and a sector gear, the connecting shell is provided with a slideway, the slideway extends along the door frame direction, the U-shaped block is slidably matched with the slideway, both inner walls of the U-shaped block are provided with teeth, the sector gear is connected to the rotating shaft, the sector gear is located in the U-shaped block, and the sector gear is meshed with the teeth of the U-shaped block; A sliding button, wherein the inner door handle is provided with a sliding groove, the sliding button is slidably adapted to the sliding groove, and the sliding button is provided with a rotating driving member; A rotating member, the rotating member is rotatably disposed in the inner door handle, the rotating shaft is connected to the rotating member, and when the sliding button is slid, the rotating driving member moves toward the rotating member and drives the rotating member to rotate; A guide member, the guide member is arranged in the outer door handle and is directly opposite to the rotating shaft; A locking member, wherein the connection housing is provided with a limiting slot, and the locking member comprises a directional member and a linear moving member, wherein the directional member is arranged at the end of the rotating shaft, and the linear moving member is plugged and matched with the slot so that the linear movement slides along the extension direction of the straight slot, and the linear moving member is rotatably connected with the directional member, and the directional member abuts against the guide surface of the guide member; The connecting shell is provided with a limiting groove, and the limiting groove is directly opposite to the linear moving part. The rotating shaft rotates and drives the directional part to rotate. Under the guiding action of the guiding part, the linear moving part moves toward the limiting groove and is plugged and adapted with the limiting groove.

2. The door lock self-locking structure according to claim 1, characterized in that: The rotating member includes a gear, which is connected to the end of the rotating shaft, and the gear is rotatably connected to the door handle. The rotating driving member includes a connecting plate and an engaging member arranged at the end of the connecting plate. The end of the connecting plate away from the engaging member is connected to the sliding button, and the engaging member is engaged with the gear.

3. The door lock self-locking structure according to claim 2, characterized in that: The meshing member comprises an open groove extending along the length direction of the slide groove, and an inner wall of the open groove is provided with meshing teeth, and the meshing teeth of the open groove mesh with the gear.

4. The door lock self-locking structure according to claim 1, characterized in that: The guide member includes a circular base, which is coaxial with the rotating shaft and has a protruding portion protruding from the edge of the end face of the circular base facing the rotating shaft; a flat shaft is provided at the end of the rotating shaft, and the directional member includes a connecting seat, which is provided with a booster, an annular groove is formed between the connecting seat and the booster, the linear moving member is rotatably matched with the annular groove, the connecting seat and the booster are both provided with a socket that is plug-in compatible with the flat shaft, and the connecting seat is provided with an arc-shaped protrusion on the end face of the guide member, and the arc-shaped protrusion is abutted against the edge of the circular base through the boosting action of the booster.

5. The door lock self-locking structure as claimed in claim 4, characterized in that: The booster member includes a symmetrical guide member and a symmetrical directing member. The symmetrical guide member is arranged on the inner wall of the outer door handle close to the connecting shell. The symmetrical guide member includes a circular ring. The circular ring is provided with a recessed portion. The recessed portion corresponds to the raised portion, and the shape and size of the recessed portion are the same as the shape and size of the raised portion. The symmetrical directing member includes a fixed seat. The fixed seat is provided with an arc-shaped protrusion on the end face facing the symmetrical guide member. The arc-shaped protrusion and the arc-shaped protrusion are symmetrically arranged about the annular groove, and the arc-shaped protrusion is against the annular end face of the circular ring.

6. The door lock self-locking structure according to claim 5, characterized in that: The linear moving part includes a swivel, a hanging ear and a limit rod. The swivel is rotatably matched with the annular groove, the hanging ear is fixedly connected to the outer peripheral surface of the swivel, and the limit rod is fixedly connected to the hanging ear. The outside door handle is provided with a positioning hole corresponding to the limit groove, and the positioning hole is communicated with the slot. The swivel is plugged and fitted with the slot, and the hanging ear is plugged and fitted with the positioning hole. When the shaft rotates, the limit rod is guided by the guide member. When the linear moving part moves toward the limit groove, the limit rod is plugged with the limit groove, thereby limiting the rotation of the outside door handle.

7. The door lock self-locking structure according to any one of claims 4 to 6, characterized in that: The circular base is provided with a circular hole, the portion of the circular hole close to the connecting shell is plugged into the flat shaft, the end portion of the circular hole away from the connecting shell is left empty, and the outer door handle is provided with a cover covering the flat hole.

8. The door lock self-locking structure according to claim 1, characterized in that: The locking tongue control component also includes a large gear and a small gear. The sector gear is rotatably connected to the inner bottom surface of the slideway. The wheel surface of the sector gear is provided with a toothed groove. The small gear is plugged and adapted to the toothed groove. The large gear rotates coaxially with the rotating shaft, and the small gear is meshed with the large gear.

9. The door lock self-locking structure according to claim 8, characterized in that: The lock tongue control component also includes two springs, and both ends of the U-shaped block are opened and closed with storage grooves, and the storage groove extends along a side away from the door frame. Two connecting blocks are arranged on the inner bottom surface of the slide, and the two connecting blocks are respectively opposite to the notches of the two storage grooves. The two springs respectively correspond to the two storage grooves, and the spring is arranged in the storage groove, one end of the spring is connected to the connecting block, and the other end of the spring is connected to the inner bottom surface of the storage groove.

10. A method for operating the door lock self-locking structure according to claims 1 to 8, characterized in that: The following steps are involved: S10: Pull the door handle to close the door, use the finger to push the sliding button to drive the rotating driving member to slide synchronously, and use the meshing member of the rotating driving member to mesh with the gear of the rotating member, thereby driving the rotating shaft to rotate synchronously; S20: Under the guiding action of the guide member and the symmetrical guide member, when the arc-shaped protrusion passes through the raised portion of the guide member, the locking member as a whole will move toward the direction close to the connecting shell. At the same time, under the limiting action of the limit rod and the positioning hole when they are plugged in, the linear moving member will not rotate with the rotating shaft, and will be plugged and cooperated with the limit groove during the movement, thereby realizing the function of limiting the rotation of the inner door handle or the outer door handle and self-locking.

Images