Door lock self-locking structure and working method thereof

Abstract

The application 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 guide piece and a locking piece. The door handle is provided with a sliding groove, the sliding button is slidably matched with the sliding groove, and the sliding button is provided with a rotating driving piece. The rotating piece is rotatably arranged in the door handle, a rotating shaft is connected with the rotating piece, the sliding button is slid, and the rotating driving piece drives the rotating piece to rotate. The guide piece is arranged in the door handle. A 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 end of the rotating shaft. The linear moving piece is insertedly matched with the slot. The linear moving piece is rotatably connected with the directional piece. The directional piece is abutted with the guide surface of the guide piece. The connecting shell is provided with a limiting groove. The limiting groove is opposite to the linear moving piece. The rotating shaft is rotated and drives the directional piece to rotate. Under the guidance of the guide piece, the linear moving piece moves towards the limiting groove and is insertedly matched with the limiting groove. Through the above arrangement, when the user closes the door lock, the door lock can be conveniently relocked through the door handle.

Description

Technical Field

[0001] This invention belongs to the technical field of door lock structures, specifically relating to a door lock self-locking structure and its working method. Background Technology

[0002] Door lock security has always been a major concern in home safety. To prevent unauthorized entry, self-locking locks are commonly used. Existing self-locking locks typically come in two types: internal locking and push-button locking. Internal locking requires locking the door from the inside with a key after it has been locked; push-button locking involves pressing a button on the inside handle after locking the door to prevent the handle from turning. However, from a user experience perspective, locking the door by pulling the handle and then locking it with the key or pressing the button on the inside handle is often forgotten and cumbersome. Therefore, there is room for improvement. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a door lock self-locking structure and its working method, which allows the user to lock the door lock by means of the door handle when closing the door lock, and has the advantage of simple operation.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A push-button door lock self-locking structure includes:

[0006] A handle assembly includes an inner door handle, an outer door handle, a connecting housing, and a pivot. The inner door handle and the outer door handle are respectively disposed on both sides of the connecting housing, which is embedded in the door. The middle part of the pivot is rotatably connected to the connecting housing, and the two ends of the pivot are respectively connected to the inner door handle and the outer door handle. The outer door handle has a slot that extends toward the connecting housing.

[0007] A latch control component includes a U-shaped block and a sector gear. The connecting housing has a slide rail that extends along the door frame. The U-shaped block slides into the slide rail. Both inner walls of the U-shaped block are provided with teeth. The sector gear is connected to the rotating shaft and is located inside the U-shaped block. The sector gear meshes with the teeth of the U-shaped block.

[0008] The sliding button is provided with a sliding groove in the door handle and is slidably adapted to the sliding groove. The sliding button is provided with a rotation drive component.

[0009] The rotating member is arranged in the door handle, the rotating shaft is connected with the rotating member, the sliding button is slid, the rotating driving member moves towards the rotating member, and the rotating member is driven to rotate;

[0010] The guide member is arranged in the door handle and opposite to the rotating shaft;

[0011] The connecting shell is provided with a limiting slot, the locking member comprises a directional member and a linear moving member, the directional member is arranged at the end of the rotating shaft, the linear moving member is inserted into the slot to slide along the extension direction of the slot, the linear moving member is rotationally connected with the directional member, and the directional member abuts against the guide surface of the guide member;

[0012] The connecting shell is provided with a limiting slot, the limiting slot is opposite to the linear moving member, the rotating shaft rotates and drives the directional member to rotate, under the guidance of the guide member, the linear moving member moves towards the limiting slot and is inserted into the limiting slot.

[0013] Further, the rotating member comprises a gear, the gear is connected with the end of the rotating shaft, the gear is rotationally connected with the door handle, the rotating driving member comprises 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 with the sliding button, and the engaging member is engaged with the gear.

[0014] Further, the engaging member comprises an open slot, the open slot extends along the length direction of the slot, one inner wall of the open slot is provided with an engaging tooth, and the engaging tooth of the open slot is engaged with the gear.

[0015] Further, the guide member comprises a circular base, the circular base is coaxial with the rotating shaft, and a convex portion is protruded from the edge of the end surface of the circular base; the end of the rotating shaft is provided with a flat shaft, the directional member comprises a connecting base, the connecting base is provided with a boosting member, an annular slot is formed between the connecting base and the boosting member, the linear moving member is rotationally connected with the annular slot, the connecting base and the boosting member are both provided with an insertion hole which is inserted into the flat shaft, an arc-shaped protruding block is arranged on the end surface of the connecting base and faces the guide member, and the arc-shaped protruding block abuts against the edge of the circular base through the boosting action of the boosting member.

[0016] Further, the boost piece comprises a symmetrical guide and a symmetrical orientation, the symmetrical guide is arranged on the inner wall of the door handle near the connecting shell, the symmetrical guide comprises a circular ring, the circular ring is provided with a recess, the recess corresponds to the convex part, and the shape and size of the recess are the same as those of the convex part, the symmetrical orientation comprises a fixed seat, the end face of the symmetrical guide is provided with an arc-shaped convex, the arc-shaped convex is arranged symmetrically with the arc-shaped convex about the annular groove, and the arc-shaped convex is in abutment with the annular end face of the circular ring.

[0017] Further, the straight line moving piece comprises a rotating ring, a hanging ear and a limiting rod, the rotating ring is rotationally connected with the annular groove, the hanging ear is fixedly connected with the outer circumferential surface of the rotating ring, and the limiting rod is fixedly connected with the hanging ear.

[0018] Further, the convex part of the circular base is two opposite convex parts, the arc-shaped convex of the connecting seat is two opposite arc-shaped convexes, the recess of the circular ring is two opposite recesses, and the arc-shaped convex of the fixed seat is two opposite arc-shaped convexes.

[0019] Further, the circular base is provided with a circular hole, the part of the circular hole near the connecting shell is in plug-in connection with the flat shaft, and the end part of the circular hole away from the connecting shell is arranged to be empty, and the door handle is provided with a face cover covering the flat hole.

[0020] Further, the lock tongue control piece further comprises a large gear and a small gear, the sector gear is rotationally connected with the inner bottom surface of the slide, the wheel surface of the sector gear is provided with a tooth-shaped groove, the small gear is in plug-in connection with the tooth-shaped groove, the large gear is coaxially rotatable with the rotating shaft, and the small gear is in engagement with the large gear.

[0021] Further, the lock tongue control piece further comprises two springs, the two ends of the U-shaped block are respectively provided with receiving grooves, the receiving grooves extend away from the door frame, the inner bottom surface of the slide is provided with two connecting blocks, the two connecting blocks are respectively opposite to the slot openings of the two receiving grooves, the two springs are respectively corresponding to the two receiving grooves, the springs are arranged in the receiving grooves, one end of the spring is connected with the connecting block, and the other end of the spring is connected with the inner bottom surface of the receiving groove.

[0022] A working method of a door lock self-locking structure, comprising the following steps:

[0023] S10: pulling the door handle to close the door, using the finger to push the sliding button to drive the rotating drive member to slide synchronously, using the meshing member of the rotating drive member to mesh with the gear of the rotating member to drive the rotating shaft to rotate synchronously;

[0024] S20: under the guiding action of the guide member and the symmetrical guide member, when the arc-shaped protrusion passes through the protruding part of the guide member, the locking member as a whole moves towards the connecting shell, and under the limiting action of the limiting rod and the positioning hole when being inserted, the straight-line moving member does not rotate with the rotating shaft, and in the moving process, the straight-line moving member is inserted and matched with the limiting groove, thereby realizing the function of self-locking the rotation of the door handle or the door handle.

[0025] The present application has the following advantages:

[0026] 1. The door lock self-locking structure of the present application, by setting the sliding button, the rotating drive member and the rotating member on the door lock, when the sliding button is pushed, the rotating drive member is driven to slide and drive the rotating member to rotate, the rotating shaft is rotated synchronously, in the process of rotating the rotating shaft, the positioning member of the locking member is guided by the guide surface of the guide member, the locking member as a whole is moved up and down, at the same time, the straight-line moving member is moved towards the limiting groove, the straight-line moving member is inserted and matched with the limiting groove, thereby realizing the function of self-locking the door lock. At the same time, since the sliding button is located on the door handle, when the door is closed, the door lock can be conveniently relocked, compared with the existing technology of using a relocking key and a button type relocking method, the present application can realize self-locking by the sliding button, therefore, it has the advantages of simple and efficient operation and not easy to forget.

[0027] 2. The working method of the present application is mainly based on the structure of the door lock self-locking structure, when the door is closed, the user can conveniently slide the sliding button of the door handle, under the slight rotation of the rotating shaft, the guide member and the symmetrical guide member are guided, the locking member is moved up and down, at the same time, the straight-line moving member is moved towards the limiting groove and is inserted and matched, thereby realizing the function of self-locking the door lock, therefore, it has the advantages of simple operation and not easy to forget. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0029] Figure 2 It is a disassembled state diagram of the door handle of the present application.

[0030] Figure 3 It is one of the exploded views of the present application.

[0031] Figure 4For Figure 2 The middle partial structure schematic view.

[0032] Figure 5 For the second explosion view of the application.

[0033] Figure 6 For Figure 4 The middle partial structure schematic view.

[0034] Figure 7 For the third explosion view of the application.

[0035] In the figure: 1, the door handle inside; 11, the sliding groove; 12, the sliding button; 13, the rotating drive piece; 131, the connecting plate; 132, the open slot; 14, the rotating piece; 15, the rotating shaft; 151, the flat shaft; 2, the connecting shell; 21, the limiting slot; 22, the sliding way; 3, the door handle outside; 30, the door cover; 31, the guide piece; 311, the circular base; 312, the convex part; 313, the circular hole; 314, the rotating column; 315, the flat hole; 32, the symmetrical guide piece; 321, the circular ring; 322, the concave part; 33, the annular wave groove; 34, the orientation piece; 341, the connecting seat; 342, the arc-shaped protrusion; 35, the symmetrical orientation piece; 351, the fixed seat; 352, the arc-shaped protrusion; 36, the annular groove; 37, the straight-line moving piece; 371, the rotating ring; 372, the hanging ear; 373, the limiting rod; 38, the positioning hole; 39, the insertion slot; 4, the bolt control piece; 41, the U-shaped block; 411, the storage slot; 42, the sector gear; 421, the tooth-shaped slot; 43, the large gear; 44, the small gear; 45, the spring; 46, the connecting block. DETAILED DESCRIPTION

[0036] The application will be further described below in conjunction with the drawings and specific embodiments. The terms such as "upper", "inner", "middle", "left", "right" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the application. Changes or adjustments of the relative relationship without substantial changes in technical content are also considered as the scope of the application.

[0037] In order to improve the user experience, the door can be self-locked / relocked by the handle when the door is closed, which can improve the convenience and reduce the situation of forgetting to relock after closing the door. Therefore, a door lock self-locking structure is designed, and the door lock self-locking structure of the application will be described in detail as follows:

[0038] A door lock self-locking structure, as shown in Figures 1 to 7 , includes a handle assembly, a bolt control piece 4, a sliding button 12, a rotating piece 14, a guide piece 31, and a locking piece.

[0039] The handle assembly comprises a door inner handle 1, a door outer handle 3, a connecting housing 2 and a rotating shaft 15, the door inner handle 1 and the door outer handle 3 are both in a housing structure and have inner cavities, the door inner handle 1 and the door outer handle 3 are arranged on two sides of the connecting housing 2, the connecting housing 2 is embedded on a door panel, the middle part of the rotating shaft 15 is rotationally connected with the connecting housing 2, and the two ends of the rotating shaft 15 are connected with the door inner handle 1 and the door outer handle 3 respectively, so that when the door inner handle 1 or the door outer handle 3 is rotated, the other handle can also be rotated synchronously with the rotating shaft 15.

[0040] The lock bolt control member 4 comprises a U-shaped block 41 and a sector gear 42, the connecting housing 2 is provided with a sliding channel 22 extending along the door frame direction, the U-shaped block 41 is in sliding fit with the sliding channel 22, both inner walls of the U-shaped block 41 are provided with teeth, the sector gear 42 is connected with the rotating shaft 15, the sector gear 42 is located in the U-shaped block 41, and the sector gear 42 is in mesh with the teeth of the U-shaped block 41. Therefore, when the door inner handle 1 or the door outer handle 3 is rotated in a forward direction or a reverse direction, the rotating shaft 15 and the sector gear 42 can be rotated, and then the U-shaped block 41 can be extended towards the door frame position or reset by meshing with the teeth of one of the inner side walls of the U-shaped block 41; wherein the U-shaped block 41 extending towards the door frame direction can realize the locking or unlocking function of the door lock bolt to the door.

[0041] In the embodiment, the lock bolt control member 4 further comprises a large gear 43 and a small gear 44, the sector gear 42 is rotationally connected with the inner bottom surface of the sliding channel 22, the wheel surface of the sector gear 42 is provided with a toothed groove 421, the small gear 44 is in plug-in fit with the toothed groove 421, the large gear 43 is coaxially rotated with the rotating shaft 15, and the small gear 44 is in mesh with the large gear 43. Therefore, when the small gear 44 is rotated by the large gear 43 during the rotation of the rotating shaft 15, the rotation speed of the small gear 44 can be improved, and the efficiency of the U-shaped block 41 extending or resetting can be improved. The shape of the large gear 43 is also in a sector shape, so that the U-shaped block 41 can not be excessively extended or retracted, the door lock can be prevented from being damaged, and the service life can be improved.

[0042] In the embodiment, the lock bolt control member 4 further comprises two springs 45, both ends of the U-shaped block 41 are provided with receiving grooves 411 extending away from the door frame, the inner bottom surface of the sliding channel 22 is provided with two connecting blocks 46, the two connecting blocks 46 are respectively opposite to the two receiving grooves 411, the two springs 45 are respectively corresponding to the two receiving grooves 411, the springs 45 are arranged in the receiving grooves 411, one end of the spring 45 is connected with the connecting block 46, and the other end of the spring 45 is connected with the inner bottom surface of the receiving groove 411. Thus, by arranging the springs 45, the U-shaped block 41 can be automatically reset by the resetting action of the springs 45 after the door inner handle 1 or the door outer handle 3 is rotated.

[0043] The door inner handle 1 is provided with a sliding groove 11 on the side close to the door panel, a sliding button 12 is slidingly matched with the sliding groove 11, and the sliding button 12 is provided with a rotating driving part 13; a rotating part 14 is rotatably arranged in the door inner handle 1, and the end of a rotating shaft 15 is connected with the rotating part 14; when the sliding button 12 is slid, the rotating driving part 13 moves along the sliding groove 11 towards the rotating part 14 and drives the rotating part 14 to rotate.

[0044] The rotating part 14 comprises a gear, the gear is connected with the end of the rotating shaft 15 through a screw or a pin, and the gear is also rotatably connected with the door inner handle 1; the rotating driving part 13 comprises a connecting plate 131 and an engaging part arranged at the end of the connecting plate 131; the end of the connecting plate 131 away from the engaging part is integrally connected with the sliding button 12; the engaging part is engaged with the gear; thus, when the sliding button 12 is pushed, the connecting plate 131 can be driven to move transversely synchronously, and the gear and the rotating shaft 15 are driven to rotate by the engaging of the engaging part and the gear.

[0045] The engaging part comprises an open groove 132 integrally connected with the connecting plate 131, the open groove 132 extends along the length direction of the sliding groove 11, and one of the inner walls of the open groove 132 is provided with engaging teeth; the engaging teeth of the open groove 132 are engaged with the gear, so as to realize the function of driving the gear and the rotating shaft 15 to rotate by the sliding of the connecting plate 131 and the open groove.

[0046] The door outer handle 3 is provided with a slot 39 extending towards the connecting shell 2, the guide part 31 is arranged in the slot 39 of the door outer handle 3 and faces the rotating shaft 15; the guide part 31 comprises a circular base 311 coaxial with the rotating shaft 15, and the end face of the circular base 311 facing the rotating shaft 15 is provided with a convex part 312 protruding from the edge; the number of the convex parts 312 is two, so as to form corresponding guide surfaces on the running edge of the circular base 311; the connecting shell 2 is provided with a limiting groove 21, the locking part comprises a directional part 34 and a linear moving part 37, the directional part 34 is arranged at the other end of the rotating shaft 15, the linear moving part 37 is rotatably connected with the directional part 34 and is insertedly matched with the slot 39, and the directional part 34 abuts against the guide surface of the guide part 31; the connecting shell 2 is provided with the limiting groove 21 facing the linear moving part 37; the rotating shaft 15 rotates and drives the directional part 34 to rotate; under the guidance of the guide part 31, the linear moving part 37 moves forward and backward towards the limiting groove 21; when the linear moving part 37 is insertedly matched with the limiting groove 21, the linear moving part 39 is kept relatively fixed with the connecting shell 2, and the linear moving part 37 and the slot 39 are consistent, so as to limit the free rotation of the door outer handle 3 and realize the function of self-locking of the door lock.

[0047] In the embodiment, the end of the rotating shaft 15 is provided with a flat shaft 151, the directional piece 34 comprises a connecting seat 341, the connecting seat 341 is connected with a boosting piece by screw locking, an annular groove 36 is formed between the connecting seat 341 and the boosting piece, the linear moving piece 37 is rotationally matched with the annular groove 36, so as to realize the relative movement between the linear moving piece 37 and the connecting seat 341 and the circular base 311; at the same time, the connecting seat 341 and the boosting piece are both provided with a plug hole matched with the flat shaft 151, the end face of the connecting seat 341 towards the guide piece 31 is provided with arc-shaped protrusions 342, the arc-shaped protrusions 342 are opposite to each other, the top end of the arc-shaped protrusions 342 corresponds to the bottom end of the guide surface of the guide piece 31, and the arc-shaped protrusions 342 abut against the edge of the circular base 311 by the boosting effect of the boosting piece. Therefore, in the process that the rotating shaft 15 drives the flat shaft 151 to rotate synchronously, under the guiding effect of the guide surface of the guide piece 31, the directional piece 34 performs up-and-down movement, when the directional piece 34 moves towards the connecting housing 2, the linear moving piece 37 is simultaneously driven to move towards the limiting groove 21 and is matched with the limiting groove 21, so as to realize the free rotation of the outer door handle 3, and further achieve the function of the self-locking of the door lock.

[0048] In the embodiment, the boosting piece is in a relative symmetrical structure with the positioning piece and the guide piece 31, so as to realize the function of stable guiding. The boosting piece comprises symmetrical guide pieces 32 and symmetrical directional pieces 35, the symmetrical guide pieces 32 are arranged on the inner wall of the outer door handle 3 close to the connecting housing 2, the symmetrical guide pieces 32 comprise annular rings 321, the annular rings 321 are provided with recessed parts 322, the recessed parts 322 are opposite to each other, the two recessed parts 322 correspond to the two protruding parts 312 respectively, and the shape and size of the recessed parts 322 are the same as those of the protruding parts 312, so that the annular wave groove 33 is formed between the guide piece 31 and the symmetrical guide pieces 32, so as to realize the stable and reciprocating up-and-down movement of the directional piece 34 and the symmetrical directional pieces 35 as a whole in the wave groove, and the linear moving piece 37 is simultaneously realized to move towards or away from the limiting groove 21, so as to realize the self-locking or unlocking of the door lock.

[0049] Wherein, the symmetric orientation piece 35 comprises a fixed seat 351, the fixed seat 351 is provided with arc-shaped protrusions 352 towards the end face of the symmetric guide piece 32, the arc-shaped protrusions 352 are two opposite ones, and the arc-shaped protrusions 352 are symmetrically arranged with the arc-shaped protrusions 342 about the annular groove 36, the interval between the vertex of the arc-shaped protrusions 352 and the vertex of the arc-shaped protrusions 342 is equal to the interval between the guide surface of the guide piece 31 and the guide surface of the symmetric guide piece 32, so as to realize the function of the positioning piece and the symmetric positioning piece slidingly fitting in the annular wave groove 33. Therefore, in the process of the rotation of the rotating shaft 15, under the combined guidance of the guide surface of the guide piece 31 and the guide surface of the symmetric guide piece 32, the function of the positioning piece, the linear moving piece 37 and the symmetric positioning piece as a whole can be realized to make fluctuation motion, and at the same time, the linear moving piece 37 can be driven to move towards the limiting groove 21, thereby realizing the function of the self-locking of the door lock.

[0050] In the embodiment, in order to realize the function of the linear moving piece 37 overcoming the rotating motion of the rotating shaft 15 and moving towards the limiting groove 21. The linear moving piece 37 comprises a rotating ring 371, two hanging ears 372 and two limiting rods 373, the rotating ring 371 is rotationally fitted with the annular groove 36, the two hanging ears 372 are respectively arranged on the outer circumferential surfaces of the opposite sides of the rotating ring 371, the two limiting rods 373 are respectively corresponding to the two hanging ears 372, and one end of the limiting rod 373 is fixedly connected with the hanging ear 372; the insertion slot 39 of the door handle 3 is in a cylindrical shape, the door handle 3 is provided with two positioning holes 38 corresponding to the two hanging ears 372, the positioning hole 38 is in communication with the insertion slot 39, and the positioning hole 38 is opposite to the limiting groove 21, the rotating ring 371 is slidingly fitted with the insertion slot 39, the two hanging ears of the linear moving piece 37 are slidingly fitted with the two positioning holes 372, and the limiting rod 373 is arranged in the positioning hole. Therefore, under the limiting effect of the positioning hole 38 and the hanging ear 372, in the process of the rotation of the rotating shaft 15 and the flat shaft 151, the linear moving piece 37 can be limited from rotating together, and when the arc-shaped protrusions 342 abut against the protruding part 312 of the guide piece 31, the linear moving piece 37 will be moved towards the limiting groove 21, and the limiting rod 373 of the linear moving piece 37 will be inserted and fitted with the limiting groove 21, thereby realizing the function of the self-locking of the door lock.

[0051] It should be noted that the protruding part 312, the arc-shaped protrusions 342, the recessed part 322 and the arc-shaped protrusions 352 are all provided in two, which is mainly to facilitate the application to the forward and reverse rotation of the rotating shaft 15, that is, when the rotating shaft 15 is rotated forward or reversely, the limiting rod 373 can be quickly inserted and fitted with the limiting groove 21, thereby realizing the self-locking of the door lock. At the same time, the number of the limiting rods 373 of the linear moving piece 37 is two, which can make the overall structure of the linear moving piece 37 symmetrical and stable, so as to improve the stability of the limiting rod 373 in realizing the self-locking of the door lock.

[0052] In addition, since the sliding button 12 is located in the door handle 1, in some special cases, there may be a situation of mistakenly locking the door, for example, when children are playing indoors or adults make a mistake, the sliding button 12 is mistakenly operated to cause the door to be self-locked, in order for the outdoor personnel to timely release the self-locked state of the door, the door lock is also upgraded: the circular base 311 is provided with a circular hole 313, the circular hole 313 is rotationally matched with a rotating column 314, the rotating column 314 is provided with a through-shaped hole 315 corresponding to the flat shaft 151, the part of the through-shaped hole 315 close to the connecting shell 2 is inserted and matched with the flat shaft 151, and the part of the through-shaped hole 315 away from the connecting shell 2 is provided to be empty; At the same time, the handle part of the door handle 3 is provided with a face cover 30 covering the through-shaped hole 315, the setting mode of the face cover 30 can be fixed by glue or integrally formed and set as a thin surface at the edge connection, so that when the face cover 30 is removed, it can be removed by forcible removal, and safety can be improved. After the face cover 30 is removed, the outdoor personnel can insert a wrench or the like into the through-shaped hole 315 to rotate, so as to drive the rotating column 314, the flat shaft 151 and the rotating shaft 15 to rotate together, and under the guidance of the guide surface of the guide 31, the front and back movement of the linear moving part 37 is realized, so that the limiting rod 373 moves out of the limiting groove 21, and the function of releasing the self-locking of the door lock is realized.

[0053] In summary, the sliding button 12, the rotating driving part 13 and the rotating part 14 are arranged on the door lock, when the sliding button 12 is pushed, the rotating driving part 13 is driven to slide and drive the rotating part 14 to rotate, the rotating shaft 15 is rotated synchronously, in the process of rotating the rotating shaft 15, the positioning part of the locking part is guided by the guide surface of the guide 31, the locking part is moved up and down as a whole, and the linear moving part 37 is moved towards the limiting groove 21, the linear moving part 37 is inserted and matched with the limiting groove 21, so that the function of self-locking of the door lock is realized. Since the sliding button 12 is located on the door handle 1, when the door is closed indoors, the door lock can be conveniently locked, compared with the reverse key and button type reverse locking mode of the prior art, the self-locking of the door lock can be realized by the sliding button 12, so that the operation is simple, efficient and not easy to forget. Embodiment

[0054] A working method of a door lock self-locking structure, using the door lock self-locking structure of embodiment 1, comprising the following steps:

[0055] S10: pulling the door handle 1 to close the door, using the finger to push the sliding button 12 to drive the rotating driving part 13 to slide synchronously, using the meshing part of the rotating driving part 13 to mesh with the gear of the rotating part 14, so as to drive the rotating shaft 15 to rotate synchronously;

[0056] S20: under the guidance of the guide 31 and the symmetric guide 32, when the arc-shaped protrusion 342 passes the protruding part 312 of the guide 31, the locking piece moves as a whole to the direction close to the connecting shell 2, meanwhile, under the limiting effect when the limiting rod 373 and the positioning hole 38 are inserted, the straight moving piece 37 will not rotate with the rotating shaft 15, and in the moving process, the straight moving piece 37 is inserted and matched with the limiting slot 21, so as to realize the function of limiting the rotating self-locking of the door outer handle 3.

[0057] In conclusion, the working method of the present application is mainly based on the structure of the door lock self-locking structure, when the user closes the door, the sliding button 12 of the door inner handle 1 can be slid by hand, under the micro rotation of the rotating shaft 15, the guiding effect of the guide 31 and the symmetric guide 32 is utilized, so that the locking piece performs specific fluctuation movement, meanwhile, under the limiting effect, the straight moving piece 37 moves to the limiting slot 21 and is inserted and matched, so as to realize the function of the door lock self-locking, therefore, the present application has the advantages of simple operation and not easy to forget.

[0058] The embodiments of the present application are not limited to this, according to the above content of the present application, using the ordinary technical knowledge and conventional means in the field, under the premise of not departing from the above basic technical idea of the present application, the present application can also be modified, replaced or combined in other forms, all of which fall within the protection scope of the present application.

Claims

1. A door lock self-locking structure, characterized in that, include: A handle assembly includes an inner door handle, an outer door handle, a connecting housing, and a pivot. The inner door handle and the outer door handle are respectively disposed on both sides of the connecting housing, which is embedded in the door. The middle part of the pivot is rotatably connected to the connecting housing, and the two ends of the pivot are respectively connected to the inner door handle and the outer door handle. The outer door handle has a slot that extends toward the connecting housing. A latch control component includes a U-shaped block and a sector gear. The connecting housing has a slide rail that extends along the door frame. The U-shaped block slides into the slide rail. Both inner walls of the U-shaped block are provided with teeth. The sector gear is connected to the rotating shaft and is located inside the U-shaped block. The sector gear meshes with the teeth of the U-shaped block. The sliding button is provided with a sliding groove in the door handle and is slidably adapted to the sliding groove. The sliding button is provided with a rotation drive component. A rotating component is rotatably disposed inside the door handle. The rotating shaft is connected to the rotating component. By sliding the sliding button, the rotating drive component moves toward the rotating component and drives the rotating component to rotate. A guide component, wherein the guide component is disposed inside the door handle and is directly opposite the pivot; The locking component includes a limiting groove in the connecting housing, and includes an directional component and a linear moving component. The directional component is disposed at the end of the rotating shaft, and the linear moving component is inserted into the slot to allow the linear moving component to slide along the extension direction of the straight groove. The linear moving component is rotatably connected to the directional component, and the directional component abuts against the guide surface of the guide component. The connecting housing has a limiting groove, which is directly opposite the linear moving member. The rotating shaft rotates and drives the directional member to rotate. Under the guidance of the guide member, the linear moving member moves toward the limiting groove and is inserted into and adapted to the limiting groove.

2. The door lock self-locking structure as described in claim 1, characterized in that, The rotating component includes a gear connected to the end of the rotating shaft and rotatably connected to the door handle. The rotating drive component includes a connecting plate and a meshing member disposed at the end of the connecting plate. The end of the connecting plate away from the meshing member is connected to the sliding button, and the meshing member meshes with the gear.

3. The door lock self-locking structure as described in claim 2, characterized in that, The meshing element includes an open groove that extends along the length of the slide groove. One inner wall of the open groove is provided with meshing teeth that mesh with the gear.

4. The door lock self-locking structure as described in claim 2, characterized in that, The guide includes a circular base, which is coaxial with the rotating shaft. The circular base has a protrusion on the edge of its end face facing the rotating shaft. A flat shaft is provided at the end of the rotating shaft. The directional component includes a connecting seat, which has a pusher. An annular groove is formed between the connecting seat and the pusher. The linear moving component rotates with the annular groove. Both the connecting seat and the pusher have insertion holes that are adapted to the flat shaft. An arc-shaped protrusion is provided on the end face of the connecting seat facing the guide. The arc-shaped protrusion abuts against the edge of the circular base through the pushing action of the pusher.

5. The door lock self-locking structure as described in claim 4, characterized in that, The booster includes a symmetrical guide and a symmetrical orientation. The symmetrical guide is disposed inside the door handle near the inner wall of the connecting housing. The symmetrical guide includes a ring with a recessed portion corresponding to the protrusion. The shape and size of the recessed portion are the same as those of the protrusion. The symmetrical orientation includes a fixing seat with an arc-shaped protrusion on its end face facing the symmetrical guide. The arc-shaped protrusion and the arc-shaped bump are symmetrically arranged about the annular groove, and the arc-shaped protrusion abuts against the annular end face of the ring.

6. The door lock self-locking structure as described in claim 5, characterized in that, The linear moving component includes a rotating ring, a hanging lug, and a limiting rod. The rotating ring rotatably engages with the annular groove. The hanging lug is fixedly connected to the outer circumferential surface of the rotating ring. The limiting rod is fixedly connected to the hanging lug. The door handle has a positioning hole corresponding to the limiting groove. The positioning hole communicates with the slot. The rotating ring is inserted into the slot. The hanging lug is inserted into the positioning hole. When the rotating shaft rotates, the limiting rod, guided by the guide component, engages with the limiting groove when the linear moving component moves toward the limiting groove, thereby restricting the rotation of the door handle.

7. The door lock self-locking structure according to any one of claims 4 to 6, characterized in that, The circular base has a through circular hole. The portion of the circular hole near the connecting housing is inserted into the flat shaft. The end portion of the circular hole away from the connecting housing is left empty. The door handle is provided with a cover that covers the flat hole.

8. The door lock self-locking structure as described in claim 1, characterized in that, The locking tongue control also includes a large gear and a small gear. The sector gear is rotatably connected to the inner bottom surface of the slide. The surface of the sector gear is provided with a toothed groove. The small gear is inserted into and adapted to the toothed groove. The large gear rotates coaxially with the rotating shaft. The small gear meshes with the large gear.

9. The door lock self-locking structure as described in claim 8, characterized in that, The latch control also includes two springs. Both ends of the U-shaped block have opening and closing storage slots. The storage slots extend along the side away from the door frame. The inner bottom surface of the slide is provided with two connecting blocks. The two connecting blocks are respectively aligned with the openings of the two storage slots. The two springs are respectively aligned with the two storage slots. The springs are set in the storage slots. 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 slot.

10. A method for operating a door lock self-locking structure as described in any one of claims 6 to 8, characterized in that, Includes the following steps: S10: Pull the inside handle to close the door, use your finger to move the sliding button to drive the rotating drive component to slide synchronously, and use the meshing part of the rotating drive component to mesh with the gear of the rotating component, thereby driving the rotating shaft to rotate synchronously; S20: Under the guidance of the guide and symmetrical guide, when the arc-shaped protrusion passes the protrusion of the guide, the locking part will move towards the connecting housing. At the same time, under the limiting action of the limit rod and the positioning hole, the linear moving part will not rotate with the shaft. During the movement, it will engage with the limit groove to achieve the function of limiting the rotation of the inner or outer door handle and locking itself.

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