CN117569678A - Lock structure - Google Patents

Abstract

The invention discloses a lockset structure; the lock structure comprises a handle, a transmission shaft and a lock body; the handle comprises a handle component and a sliding block, wherein the lock body is provided with an anti-locking piece, the handle component is provided with a containing hole and a penetrating hole, the containing hole is used for containing a transmission shaft, the sliding block is connected with the handle component in a sliding manner and is used for being connected with the anti-locking piece through the penetrating hole so as to drive the anti-locking piece to reciprocate to unlock or lock the lock body. The invention solves the problems of high product cost, troublesome installation and long assembly time caused by relatively complex existing general back locking scheme.

Description

Lock structure

Technical Field

The invention relates to the technical field of locks, in particular to a lock structure.

Background

In the technical field of door and window hardware fittings, the scheme adopted for back locking the whole door and window generally has two forms: 1. the control handle is reversely locked, and the rotation of the handle is directly limited, so that the door and the window are reversely locked; 2. the transmission lock box is reversely locked, and the rotation of the handle is indirectly limited, so that the door and the window are reversely locked;

the handle in the 1 st form needs to comprise a fixed base, a handle and a reset spring, a locking structure, a back locking knob, a fixing screw, a clamp spring and other accessories, and the back locking knob is rotated to enable the locking structure to clamp the base and limit the handle to rotate. The structure is complex, the assembly process is complex, but the lock box matched with the structure for transmission is relatively simple. The handle of the 2 nd type needs to comprise a base, a handle, a back locking knob (or a lock cylinder), a fixing screw and a clamp spring, the handle of the 2 nd type is relatively simple compared with the handle of the 1 st type in structure, but the base of the handle of the 2 nd type is often larger than that of the 1 st type, and a lock box matched with the handle of the 1 st type is more complex than that of the lock box matched with the handle of the 1 st type. The anti-lock knob of the rotary handle drives the locking structure matched with the anti-lock knob to lock the rotating wheel of the lock box, so that the rotary handle is indirectly rotated.

In terms of the overall scheme, the two schemes have the problems of complex structure, troublesome installation, long assembly time and high product cost.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a lockset structure.

In order to solve the technical problems, the invention adopts the following technical scheme:

in a first aspect, an embodiment of the present invention provides a lock structure, including a handle, a transmission shaft, and a lock body; the handle comprises a handle assembly and a sliding block, an anti-locking piece is arranged on the lock body, a containing hole and a penetrating hole are formed in the handle assembly, the containing hole is used for containing the transmission shaft, the sliding block is slidably connected with the handle assembly, and the sliding block is used for being connected with the anti-locking piece through the penetrating hole so as to drive the anti-locking piece to reciprocate to unlock or lock the lock body.

In one embodiment, the lock body comprises a first shell, a second shell and a rotating wheel; the first shell is provided with a first through hole, the edge of the first through hole is provided with a first notch, the second shell is provided with a second through hole, the edge of the second through hole is provided with a second notch, the rotating wheel is rotationally connected between the first through hole and the second through hole, and the edge of the rotating wheel is provided with a notch groove; when the sliding block drives the counter locking piece to simultaneously clamp the first notch, the notch groove and the second notch, counter locking is realized.

In a specific embodiment, the counter-locking member is movably disposed, and a bump is disposed on the counter-locking member, where the bump is used to block the first notch, the notch groove, and the second notch.

In a specific embodiment, the handle assembly comprises a handle, a guide chute is arranged on the same side of the through hole of the handle, and the sliding block is connected with the guide chute in a sliding manner.

In a specific embodiment, a stop block is further disposed at one end of the guiding chute, which is far away from the through hole, and the stop block is fixed on the handle.

In a specific embodiment, a poking protrusion is further arranged on the outer side of the sliding block.

In a specific embodiment, the handle assembly comprises a handle and a knob part, the handle is positioned on the same side of the penetrating hole and is provided with a guide chute, the sliding block is slidably connected with the guide chute, and the sliding block is also in transmission connection with the knob part.

In a specific embodiment, the handle is located at one side of the guiding chute and is further provided with a containing cavity for containing the knob part, the knob part is provided with a spiral groove, the sliding block is provided with a convex column corresponding to the spiral groove, and the convex column is in transmission connection with the spiral groove.

In a specific embodiment, the handle assembly comprises a handle, a sleeve and a knob part, the handle is provided with a through cavity for placing the sleeve and the knob part, the accommodating hole and the penetrating hole are formed in the sleeve, the sleeve is positioned on the same side of the penetrating hole and is provided with a guide chute, the sliding block is in sliding connection with the guide chute, and the sliding block is in transmission connection with the knob part.

In a specific embodiment, the knob portion is provided with a spiral groove, the sliding block is provided with a convex column corresponding to the spiral groove, and the convex column is in transmission connection with the spiral groove.

Compared with the prior art, the lockset structure has the beneficial effects that: the problems of high product cost, troublesome installation and long assembly time caused by relatively complex existing overall counter-locking scheme are solved through the cooperation of the handle, the lock body and the counter-locking piece.

The invention is further described below with reference to the drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a handle according to a first embodiment of the present invention;

FIG. 2 is an exploded view of a first embodiment of a handle provided by the present invention;

FIG. 3 is a schematic cross-sectional view of a first embodiment of a handle provided by the present invention;

FIG. 4 is an exploded view of a second embodiment of the handle of the present invention;

FIG. 5 is a schematic cross-sectional view of a second embodiment of a handle provided by the present invention;

FIG. 6 is a schematic view of a slider and knob portion connection provided by the present invention;

FIG. 7 is an exploded view of a third embodiment of the handle provided by the present invention;

FIG. 8 is a schematic cross-sectional view of a third embodiment of a handle provided by the present invention;

FIG. 9 is a schematic view of a sleeve according to the present invention;

FIG. 10 is a schematic cross-sectional view of a handle provided by the present invention;

FIG. 11 is a schematic diagram of a lock according to the present invention;

FIG. 12 is a second schematic structural diagram of the lock according to the present invention;

fig. 13 is a schematic structural diagram III of the lock according to the present invention;

fig. 14 is a schematic structural diagram of a lock according to the present invention;

FIG. 15 is a schematic view of a lock body according to the present invention;

FIG. 16 is an exploded view of the lock body of the present invention;

FIG. 17 is a schematic view of a second housing according to the present invention;

FIG. 18 is a schematic view of a latch bolt assembly according to the present invention;

fig. 19 is a schematic structural view of a rotor according to the present invention.

In the figure: 10. a handle assembly; 11. a handle; 111. a guide chute; 112. a receiving hole; 113. penetrating through the hole; 114. a limiting block; 115. a cavity is communicated; 116. positioning holes; 117. a positioning spring; 118. positioning beads; 119. a fixed screw hole; 12. a knob portion; 121. a spiral groove; 13. a sleeve; 131. a clamping groove; 20. a sliding block; 21. penetrating the blind hole; 22. the protrusion is stirred; 23. a convex column; 24. a positioning groove; 25. screw holes; 26. a sliding screw; 30. a transmission shaft; 40. a lock body; 41. a first housing; 411. a first through hole; 412. a first notch; 42. a second housing; 421. a second through hole; 422. a second notch; 423. a passage hole; 424. a support block; 425. a connecting column; 43. a rotating wheel; 431. a notch groove; 432. polygonal through holes; 433. a first side wing; 434. a second side wing; 4341. a limit protrusion; 44. a counter lock; 441. a bump; 45. a latch bolt assembly; 451. a bolt; 4511. a limiting plate; 452. a tongue main body; 4521. a driving arm; 46. a spring; 50. a handle screw; 60. a decorative cover; 61. an opening; 70. a cover plate; 80. and (5) clamping springs.

Detailed Description

The present invention will be described in further detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

Referring to fig. 1 to 10, the present invention discloses a specific structure of a handle, which comprises a handle assembly 10 and a sliding block 20; the handle assembly 10 is provided with a receiving hole 112 and a penetrating hole 113, the sliding block 20 is slidably connected to the handle assembly 10, and the sliding block 20 is provided with a penetrating blind hole 21 corresponding to the penetrating hole 113.

First, referring to fig. 1 to 3, there is shown:

in one embodiment, the handle assembly 10 includes a handle 11, the handle 11 is provided with a guide chute 111 on the same side as the through hole 113, and the slider 20 is slidably connected to the guide chute 111.

Specifically, the end of the counter lock is connected to the through hole 113 and the through blind hole 21, and the sliding block 20 slides in the guiding chute 111 to drive the counter lock to move in the axial direction.

In an embodiment, a stopper 114 is further disposed at an end of the guiding chute 111 far from the through hole 113, and the stopper 114 is fixed to the handle 11.

Specifically, the stopper 114 is fixed to the handle 11 by a screw for restricting the sliding distance of the slider 20.

In one embodiment, the outside of the slider 20 is also provided with a toggle protrusion 22.

Specifically, the toggle protrusion 22 is used to toggle the sliding block 20, so as to enable the sliding block 20 to slide up and down in the guide chute 111.

In an embodiment, a positioning hole 116 is further formed in the inner wall of the guide chute 111, a positioning spring 117 is embedded in the positioning hole 116, a positioning bead 118 is connected to the outer end of the positioning spring 117, a plurality of positioning grooves 24 are formed in positions, corresponding to the positioning bead 118, of the sliding block 20, and the positioning grooves 24 are matched with the positioning bead 118 to perform a positioning function.

In one embodiment, the sliding block 20 is further provided with a screw hole 25, and a sliding screw 26 is disposed in the screw hole 25, where the sliding screw 26 is used for fastening the counter lock.

In one embodiment, a fixing screw hole 119 is provided on a side of the handle 11 away from the guide chute 111, and a handle screw 50 is provided in the fixing screw hole 119, and the handle screw 50 is used for fastening the transmission shaft.

In an embodiment, the outer side of the handle 11 is also clamped with a decorative cover 60, and the decorative cover 60 is provided with an opening 61 corresponding to the poking protrusion 22, so that the poking protrusion 22 can be conveniently operated, and the decorative cover 60 plays a role in sealing and attractive appearance.

In a second embodiment, see fig. 4 to 6:

in one embodiment, the handle assembly 10 includes a handle 11 and a knob portion 12, the handle 11 is provided with a guide chute 111 on the same side as the through hole 113, the sliding block 20 is slidably connected to the guide chute 111, and the sliding block 20 is further in driving connection with the knob portion 12.

Specifically, the end of the counter-locking member is connected to the through hole 113 and the through blind hole 21, and the turning knob 12 drives the sliding block 20 to slide in the guiding chute 111, so as to drive the counter-locking member to move in the axial direction.

In an embodiment, the handle 11 is further provided with a receiving cavity for placing the knob portion 12 on one side of the guiding chute 111, the knob portion 12 is provided with a spiral groove 121, the sliding block 20 is provided with a protruding column 23 corresponding to the spiral groove 121, and the protruding column 23 is in transmission connection with the spiral groove 121.

Specifically, turning the knob portion 12 can drive the slider 20 to slide up and down in the guide chute 111.

In one embodiment, the knob portion 12 may be formed from two separate pieces to facilitate molding.

In an embodiment, the knob portion 12 is further provided with a positioning hole 116, a positioning spring 117 is embedded in the positioning hole 116, a positioning bead 118 is connected to the outer end of the positioning spring 117, a plurality of notches are formed in the accommodating cavity corresponding to the positioning bead 118, and the notches are matched with the positioning bead 118 to perform a positioning function, so that a positioning feel, such as an obvious positioning at 0 degree or 90 degrees, can be achieved when the knob portion 12 is rotated.

In one embodiment, the sliding block 20 is further provided with a screw hole 25, and a sliding screw 26 is disposed in the screw hole 25, where the sliding screw 26 is used for fastening the counter lock. A fixing screw hole 119 is formed in one side of the handle 11 far from the guide chute 111, a handle screw 50 is arranged in the fixing screw hole 119, and the handle screw 50 is used for fastening a transmission shaft.

In one embodiment, the handle 11 is further provided with a spanner via corresponding to the screw hole 25, through which the sliding screw 26 is conveniently adjusted.

In an embodiment, the upper end of the handle 11 is further clamped with a cover plate 70, and the cover plate 70 is provided with a round hole corresponding to the knob portion 12, so that the knob portion 12 can be conveniently rotated, and the cover plate 70 plays a role in sealing and attractive appearance.

Embodiment three, see fig. 7 to 10 for:

in one embodiment, the handle assembly 10 includes a handle 11, a sleeve 13 and a knob portion 12, the handle 11 is provided with a through cavity 115 for placing the sleeve 13 and the knob portion 12, the accommodating hole 112 and the penetrating hole 113 are provided in the sleeve 13, the sleeve 13 is provided with a guiding chute 111 on the same side of the penetrating hole 113, the sliding block 20 is slidably connected to the guiding chute 111, and the sliding block 20 is further in transmission connection with the knob portion 12.

Specifically, the end of the counter-locking member is connected to the through hole 113 and the through blind hole 21, and the turning knob 12 drives the sliding block 20 to slide in the guiding chute 111, so as to drive the counter-locking member to move in the axial direction.

In one embodiment, the knob portion 12 is provided with a spiral groove 121, the sliding block 20 is provided with a convex column 23 corresponding to the spiral groove 121, and the convex column 23 is in transmission connection with the spiral groove 121.

Specifically, turning the knob portion 12 can drive the slider 20 to slide up and down in the guide chute 111.

In one embodiment, the cavity wall of the through cavity 115 is provided with a clamping post, the sleeve 13 is provided with a clamping groove 131 corresponding to the clamping post, and the clamping post is embedded in the clamping groove 131.

In one embodiment, the open end of the through cavity 115 further has an annular groove in which the sleeve 13 is mounted by a snap spring 80 for limiting movement of the sleeve 13 within the through cavity 115 such that the sleeve 13 is stationary relative to the handle 11.

In one embodiment, the sliding block 20 is further provided with a screw hole 25, and a sliding screw 26 is disposed in the screw hole 25, where the sliding screw 26 is used for fastening the counter lock. A fixing screw hole 119 is formed in one side of the handle 11 far from the guide chute 111, a handle screw 50 is arranged in the fixing screw hole 119, and the handle screw 50 is used for penetrating the sleeve 13 and fastening the transmission shaft again.

In one embodiment, the handle 11 is further provided with a spanner via corresponding to the screw hole 25, through which the sliding screw 26 is conveniently adjusted.

In an embodiment, the knob portion 12 is further provided with a positioning hole 116, a positioning spring 117 is embedded in the positioning hole 116, a positioning bead 118 is connected to an outer end of the positioning spring 117, a plurality of notches are formed in the through cavity 115 corresponding to the positioning bead 118, and the notches are matched with the positioning bead 118 to perform a positioning function, so that a positioning feel, such as an obvious positioning at 0 degree or 90 degrees, can be achieved when the knob portion 12 is rotated.

Referring to fig. 1 to 19, the present invention discloses a lock embodiment, which includes a handle, a transmission shaft 30 and a lock body 40; the handle comprises a handle assembly 10 and a sliding block 20, a counter lock 44 is arranged on the lock body 40, a containing hole 112 and a penetrating hole 113 are arranged on the handle assembly 10, the containing hole 112 is used for containing a transmission shaft 30, the sliding block 20 is connected to the handle assembly 10 in a sliding mode, and the sliding block 20 is connected with the counter lock 44 through the penetrating hole 113 so as to drive the counter lock 44 to reciprocate to unlock or counter lock the lock body 40.

Specifically, through the cooperation of the handle, the lock body 40 and the counter-locking piece 44, the lockset solves the problems of high product cost, troublesome installation and long assembly time caused by relatively complex existing general counter-locking schemes.

Referring to fig. 11 to 12, in use, the transmission shaft 30 and the counter-locking member 44 pass through the rotating wheel of the lock body 40, the two ends of the transmission shaft 30 penetrate into the accommodating holes 112, the handle screw 50 is screwed to fix the handle 11 on the transmission shaft 30, the two ends of the counter-locking member 44 respectively penetrate through the penetrating holes 113 beside the accommodating holes 112 and penetrate into the penetrating blind holes 21, then the sliding screw 26 is screwed to fixedly connect the counter-locking member 44 and the sliding block 20 relatively, the decorative cover 60 and the handle 11 cooperate to shield the sliding block 20, so that the whole is more attractive, and the poking protrusion 22 is operated to enable the counter-locking member 44 to move to be clamped or separated from the notch of the lock body 40, so as to achieve the counter-locking or unlocking function.

Referring to fig. 13, in use, the transmission shaft 30 and the counter-locking member 44 pass through the rotating wheel of the lock body 40, two ends of the transmission shaft 30 penetrate into the accommodating holes 112, and the handle screw 50 is screwed to fix the handle 11 on the transmission shaft 30, and two ends of the counter-locking member 44 respectively pass through the penetrating holes 113 beside the accommodating holes 112 and penetrate into the penetrating blind holes 21, and then the sliding screw 26 is screwed to fixedly connect the counter-locking member 44 and the sliding block 20, and the knob 12 is rotated to drive the sliding block 20 to move, so that the counter-locking member 44 moves to be blocked or separated from the notch of the lock body 40, thereby achieving the counter-locking or unlocking function.

Referring to fig. 14, in the use process, the transmission shaft 30 and the counter lock 44 pass through the rotating wheel of the lock body 40, two ends of the transmission shaft 30 penetrate into the accommodating hole 112, the handle screw 50 is screwed into the sleeve 13 to fix the handle 11 and the sleeve 13 on the transmission shaft 30, two ends of the counter lock 44 respectively pass through the penetrating hole 113 beside the accommodating hole 112 and penetrate into the penetrating blind hole 21, then the sliding screw 26 is screwed to fixedly connect the counter lock 44 and the sliding block 20 relatively, and the knob 12 is rotated to drive the sliding block 20 to move, so that the counter lock 44 moves to be clamped or separated from the notch of the lock body 40, thereby achieving the counter lock or unlocking function.

In one embodiment, referring to fig. 15 to 19, the lock body 40 includes a first housing 41, a second housing 42, and a rotating wheel 43; the first shell 41 is provided with a first through hole 411, the edge of the first through hole 411 is provided with a first notch 412, the second shell 42 is provided with a second through hole 421, the edge of the second through hole 421 is provided with a second notch 422, the rotating wheel 43 is rotationally connected between the first through hole 411 and the second through hole 421, and the edge of the rotating wheel 43 is provided with a notch groove 431; the end of the locking piece 44 is connected to the through hole 113 and the through blind hole 21, and when the sliding block 20 drives the locking piece 44 to simultaneously clamp the first notch 412, the notch groove 431 and the second notch 422, the locking is realized.

In one embodiment, the wheel 43 is further provided with polygonal through holes 432.

Specifically, the polygonal through hole 432 is used for connecting with the transmission shaft 30, and when the handle 11 is turned, the turning wheel 43 is turned.

In one embodiment, the counter-locking element 44 is provided with a protrusion 441, and the protrusion 441 is used for locking the first notch 412, the notch 431 and the second notch 422.

Specifically, in use, the counter-locking member 44 passes through the notch 431 and penetrates the first through hole 411 and the second through hole 421, and in the non-locked state, the protruding block 441 is located between the first housing 41 and the second housing 42 or outside the first housing 41 and the second housing 42, at this time, the rotation diameter of the counter-locking member 44 at the thickness plane position of the first housing 41 and the second housing 42 is smaller than the diameter of the first through hole 411 and the second through hole 421, at this time, the rotating wheel 43 can drive the counter-locking member 44 to rotate together, the first side wing 433 of the rotating wheel 43 is in driving connection with the driving arm 4521 of the latch assembly 45, so as to drive the latch 451 to retract into the second housing 42 along the channel hole 423, and after the force of the rotating wheel 43 is removed, the rotating wheel 43 is reset to the initial position under the action of the spring 46.

In one embodiment, lock body 40 further includes a latch bolt assembly 45 and a spring 46; the latch bolt assembly 45 is movably connected with the second housing 42, one end of the rotating wheel 43 is in transmission connection with the latch bolt assembly 45, and the other end is abutted with the spring 46.

Specifically, when the rotating wheel 43 is rotated, the rotating wheel 43 drives the latch bolt assembly 45 to move, and at this time, the spring 46 is compressed; when the force of the rotating wheel 43 is released, the wheel 43 is returned to the original position by the elastic force of the spring 46.

In an embodiment, the latch bolt assembly 45 includes a latch bolt 451 and a latch bolt main body 452, the second housing 42 is provided with a channel hole 423 corresponding to the latch bolt 451, the latch bolt main body 452 is provided with a driving arm 4521, one end of the rotating wheel 43 is provided with a first side wing 433, the other end is provided with a second side wing 434, the first side wing 433 is in transmission connection with the driving arm 4521, and the second side wing 434 is abutted with the spring 46.

Specifically, when the rotating wheel 43 is rotated, the first side wing 433 drives the driving arm 4521 to move, so that the lock tongue 451 is retracted into the second housing 42 along the channel hole 423, and at this time, the spring 46 is compressed; when the force of the rotating wheel 43 is removed, the second side wing 434 moves under the elastic force of the spring 46, and drives the rotating wheel 43 to return to the initial position.

In an embodiment, the second side wing 434 is provided with a limiting protrusion 4341, and one end of the spring 46 is sleeved on the limiting protrusion 4341, so that when the spring 46 is compressed or extended, the movement direction of the spring 46 is always in a straight line, so that the elastic force of the spring 46 is kept stable, and the movement stroke of the second side wing 434 is consistent.

In one embodiment, the second housing 42 is further provided with a supporting block 424, and one end of the spring 46 abuts against the supporting block 424, and the other end abuts against the second side wing 434.

Specifically, a cavity for placing the spring 46 is formed between the support block 424 and the second casing 42, and one end of the spring 46 abuts against the support block 424, and the other end abuts against the second side wing 434, so that when the spring 46 is compressed or extended, the movement direction of the spring 46 is always on a straight line, and the elastic force of the spring 46 is ensured to be stable.

In an embodiment, the supporting block 424 is also provided with a protrusion for limiting the spring 46, so that the occurrence of displacement of the spring 46 can be effectively avoided.

In an embodiment, a limiting plate 4511 is further disposed on a side of the lock tongue 451 near the supporting block 424, and when the lock tongue 451 retracts into the second housing 42, the limiting plate 4511 is in abutting connection with the supporting block 424, so as to perform a limiting function.

In an embodiment, the second housing 42 is further provided with a connecting post 425, wherein one connecting post 425 is located on one side of the second side wing 434 away from the spring 46, and when the rotating wheel 43 is located at the initial position, the second side wing 434 is in abutting connection with the connecting post 425, so as to play a role in limiting, and the second side wing 434 cannot be separated from the spring 46. One of the connecting posts 425 is located at one side of the driving arm 4521 away from the lock tongue 451, and when the lock tongue 451 is retracted into the second housing 42, the driving arm 4521 is in interference connection with the connecting post 425, so as to play a limiting role. The first housing 41 is connected with the connection post 425 by a screw to achieve connection between the first housing 41 and the second housing 42.

In an embodiment, the lock tongue 451 and the lock tongue main body 452 are integrally formed, so that the strength is high, only one set of die is needed during production, and the production cost is reduced.

In an embodiment, the rotating wheel 43, the first side wing 433 and the second side wing 434 are integrally formed, so that the strength is high, and only one set of mold is needed during production, thereby reducing the production cost.

In an embodiment, the outer sides of the first through hole 411 and the second through hole 421 are respectively provided with a convex groove, and the rotating wheel 43 is rotationally connected with the convex grooves, so that the structure is compact and the sealing performance is strong.

Specifically, the counter lock 44 is flat, and the projection 441 is located at the middle of the counter lock 44.

In one embodiment, the longitudinal section of the projection 441 is M-shaped.

Specifically, the M-shaped projection 441 has high strength and good locking effect.

In one embodiment, the first notch 412 and the second notch 422 have the same structure, and the first notch 412 has a U shape.

Specifically, the U-shaped notch is convenient for the bump 441 to move up and down, and when the bump 441 clamps the notch, the U-shaped notch is uniformly stressed, and the locking effect is more stable.

Preferably, the notch 431 is also U-shaped to correspond to the shape of the counter lock 44.

The foregoing embodiments are preferred embodiments of the present invention, and in addition, the present invention may be implemented in other ways, and any obvious substitution is within the scope of the present invention without departing from the concept of the present invention.

Claims (10)

1. The lock structure is characterized by comprising a handle, a transmission shaft and a lock body; the handle comprises a handle assembly and a sliding block, an anti-locking piece is arranged on the lock body, a containing hole and a penetrating hole are formed in the handle assembly, the containing hole is used for containing the transmission shaft, the sliding block is slidably connected with the handle assembly, and the sliding block is used for being connected with the anti-locking piece through the penetrating hole so as to drive the anti-locking piece to reciprocate to unlock or lock the lock body.

2. The lock structure of claim 1, wherein the lock body comprises a first housing, a second housing, and a runner; the first shell is provided with a first through hole, the edge of the first through hole is provided with a first notch, the second shell is provided with a second through hole, the edge of the second through hole is provided with a second notch, the rotating wheel is rotationally connected between the first through hole and the second through hole, and the edge of the rotating wheel is provided with a notch groove; when the sliding block drives the counter locking piece to simultaneously clamp the first notch, the notch groove and the second notch, counter locking is realized.

3. The lock structure according to claim 2, wherein the counter lock is movably disposed, and the counter lock is provided with a protrusion, and the protrusion is configured to lock the first notch, the notch groove, and the second notch.

4. The lock structure according to claim 1, wherein the handle assembly includes a handle having a guide chute on the same side as the through hole, and the slider is slidably connected to the guide chute.

5. The lock structure according to claim 4, wherein a stopper is further provided at an end of the guide chute remote from the through hole, the stopper being fixed to the handle.

6. The lock structure according to claim 4, wherein the outside of the sliding block is further provided with a toggle protrusion.

7. The lock structure according to claim 1, wherein the handle assembly includes a handle and a knob portion, the handle being provided with a guide chute on the same side as the through hole, the slider being slidably connected to the guide chute, the slider being further in driving connection with the knob portion.

8. The lock structure according to claim 7, wherein the handle is further provided with a receiving cavity for receiving the knob portion on one side of the guide chute, the knob portion is provided with a spiral groove, the slider is provided with a protrusion corresponding to the spiral groove, and the protrusion is in driving connection with the spiral groove.

9. The lock structure according to claim 1, wherein the handle assembly comprises a handle, a sleeve and a knob portion, the handle is provided with a through cavity for placing the sleeve and the knob portion, the accommodating hole and the penetrating hole are formed in the sleeve, the sleeve is located on the same side of the penetrating hole and is provided with a guiding chute, the sliding block is slidably connected to the guiding chute, and the sliding block is further in transmission connection with the knob portion.

10. The lock structure according to claim 9, wherein the knob portion is provided with a spiral groove, the slider is provided with a boss corresponding to the spiral groove, and the boss is in driving connection with the spiral groove.