CN218347117U - Clamping structure and electronic lock - Google Patents

Abstract

The application provides a press from both sides tight structure and electronic lock. The clamping structure comprises a shell, a first clamping block, a second clamping block and a limiting piece. The first clamping block, the second clamping block and the limiting piece are arranged on the shell. One of the shell or the first clamping block is provided with a first sliding block, and the other one is provided with a first sliding groove. The first clamping block slides relative to the shell through the matching of the first sliding block and the first sliding groove. A clamping space is formed between the first clamping block and the second clamping block. When the first clamping block slides to a first position relative to the shell, the first clamping block is close to the second clamping block, and the clamping space is reduced. When the first clamping block slides to the second position relative to the shell, the first clamping block is far away from the second clamping block, and the clamping space is increased. The limiting piece is used for limiting the first clamping block when the first clamping block slides to the first position or the second position. The utility model provides a press from both sides tight structure can adapt to not key or the knob of unidimensional size, and adaptability is better, and easily operation.

Description

Clamping structure and electronic lock

Technical Field

The utility model relates to the field of mechanical equipment, concretely relates to press from both sides tight structure and electronic lock.

Background

Along with the development of society, the demand of people's daily life can not be satisfied to pure mechanical lock, except directly changing the mechanical lock into the electronic lock, can also realize the function of electronic lock automatic switch door through installing the lock subsides on the mechanical lock, through drive key or knob in the door. However, because the keys and the knobs on the market are various in types, and different keys and knobs have different shapes and thicknesses, the same lock sticker cannot be simultaneously adapted to most keys or knobs, the adaptability is poor, meanwhile, a user needs to select lock stickers with different widths according to the needs of the user, the fault tolerance rate is low, and the operation of the user is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a press from both sides tight structure and reach electronic lock including this tight structure of clamp can press from both sides the size in the centre gripping space of tight structure according to the size adjustment of different keys or knob, and is better to the adaptability of mechanical lock.

In a first aspect, embodiments of the present application provide a clamping structure. The clamping structure comprises a shell, a first clamping block, a second clamping block and a limiting piece. The first clamping block, the second clamping block and the limiting piece are arranged on the shell. One of the shell or the first clamping block is provided with a first sliding block, and the other one is provided with a first sliding groove. The first clamping block slides relative to the shell through the matching of the first sliding block and the first sliding groove. A clamping space is formed between the first clamping block and the second clamping block. When the first clamping block slides to a first position relative to the shell, the first clamping block is close to the second clamping block, and the clamping space is reduced. When the first clamping block slides to the second position relative to the shell, the first clamping block is far away from the second clamping block, and the clamping space is increased. The limiting piece is used for limiting the first clamping block when the first clamping block slides to the first position or the second position.

In one embodiment, one of the housing or the second clamping block is provided with a second sliding block, and the other one of the housing or the second clamping block is provided with a second sliding groove. The second clamping block slides relative to the shell through the matching of the second sliding block and the second sliding groove. When the second clamping block slides to a third position relative to the shell, the second clamping block is close to the first clamping block, and the clamping space is reduced. When the second clamping block slides to a fourth position relative to the shell, the second clamping block is far away from the first clamping block, and the clamping space is increased. The limiting piece is used for limiting the second clamping block when the second clamping block slides to the third position or the fourth position.

In one embodiment, the first sliding groove and the second sliding groove are arranged in the shell, the first sliding block is arranged in the first clamping block, and the second sliding block is arranged in the second clamping block.

In one embodiment, the first clamping block includes a first clamping portion and a first engaging portion, the first engaging portion is disposed on a surface of the first clamping portion facing the first sliding groove, and the first engaging portion constitutes the first slider. The second clamping block comprises a second clamping portion and a second meshing portion, the second meshing portion is arranged on the surface, facing the second sliding groove, of the second clamping portion, and the second meshing portion forms a second sliding block.

In one embodiment, the clamping structure further includes a transmission member disposed between the first engaging portion and the second engaging portion. The transmission member includes a first gear. The first gear is engaged with the first engaging portion, and the first gear is also engaged with the second engaging portion. The shell is provided with a first protruding block and a second protruding block which are arranged at intervals, the first gear and the first protruding block form a first sliding groove, and the first gear and the second protruding block form a first sliding groove.

In one embodiment, the transmission member further comprises a rotating shaft. The limiting piece comprises a second gear and a stopping part. The first gear is connected with the second gear through a rotating shaft, and the first gear and the second gear rotate coaxially. The stopping part is fixed on the shell and matched with the second gear, and the stopping part is used for limiting the first clamping block when the first clamping block slides to the first position or the second position.

In one embodiment, the clamping structure further includes a first elastic member sandwiched between the first clamping block and the second clamping block. The stopping part also comprises a pawl and a second elastic piece, the second gear is a ratchet wheel, and the second gear is matched with the pawl. The second elastic piece is arranged on the surface of one side of the pawl, which is back to the second gear. When the pawl is matched with the second gear, the second elastic piece is in an initial state. When the pawl releases the second gear, the second elastic element is in a compressed state.

In one embodiment, the stopping portion further includes a holding portion connected to an end of the pawl away from a position where the pawl is engaged with the second gear. The shell is also provided with a through hole which is arranged on the surface of the butting part opposite to the shell. When the external force acts on the abutting part through the through hole, the pawl releases the second gear, and the second elastic piece is in a compressed state.

In one embodiment, the first clamping block further comprises a first clamping block support and the second clamping block further comprises a second clamping block support. The first clamping block bracket is connected to the surface, away from the second gear, of the first clamping part. The second clamping block bracket is connected to the surface, away from the second gear, of the second clamping part. The first clamping portion drives the first clamping block support to move, and the second clamping portion drives the second clamping block support to move. A clamping space is formed between the first clamping block bracket and the second clamping block bracket.

In one embodiment, the housing includes a frame, an upper cover connected to the frame, and a lower cover sandwiched between the upper cover and the frame. A first space is formed between the upper clamping cover and the lower clamping cover, and the first clamping portion, the second clamping portion, the first meshing portion, the second meshing portion, the first gear and the first elastic piece are arranged in the first space. A second space is formed between the lower clamping cover and the end face, far away from the upper clamping cover, of the frame body, and the limiting piece is arranged in the second space. The upper clamping cover is provided with a first avoidance hole and a second avoidance hole, the first clamping block further comprises a first extending portion, and the second clamping block further comprises a second extending portion. One end of the first extending portion is connected with the first clamping portion, and the other end of the first extending portion penetrates through the first avoiding hole to be connected to the first clamping block support. One end of the second extending part is connected with the second clamping part, and the other end of the second extending part penetrates through the second avoiding hole to be connected to the second clamping block support.

In one embodiment, the upper clamping cover is further provided with a first limiting column, the first limiting column is arranged on the outer surface of the upper clamping cover facing the first clamping block support, and the first clamping block support is provided with a third sliding groove. The first limiting column is arranged on the third sliding groove and limits the first clamping block to move in the directions except the axial direction of the first elastic piece. The axial direction of the first elastic member is a first direction.

In one embodiment, the upper clamping cover is further provided with a second limiting column, the second limiting column is arranged on the outer surface, facing the second clamping block support, of the upper clamping cover, and the second clamping block support is provided with a fourth sliding groove. The second limiting column is arranged on the fourth sliding groove and limits the second clamping block to move in the outward direction except the first direction.

In a second aspect, an embodiment of the present application provides an electronic lock. The electronic lock comprises a shell and the clamping structure. The clamping structure is accommodated in the shell.

The clamping structure of this application is with first clamp splice and second clamp splice difference sliding connection in casing, and through the relative casing slip of first clamp splice of control for first clamp splice can be close to or keep away from the second clamp splice, in order to reach the purpose that reduces or increase centre gripping space. Meanwhile, the position of the first clamping block after movement is limited through the limiting part so as to fix the size of the clamping space at the moment, and therefore the clamping space can be matched with keys or knobs of different sizes. In other words, the clamping structure can adjust the size of the clamping space by controlling the first clamping block to slide relative to the shell, so that the clamping structure can be adapted to keys or knobs with different sizes, the adaptability is better, and the operation is easy.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

Fig. 1 is a schematic structural diagram of a clamping structure provided in an embodiment of the present application;

FIG. 2 is an exploded schematic view of the clamping arrangement shown in FIG. 1;

FIG. 3 is an exploded view of the clamping arrangement shown in FIG. 1 in another orientation;

FIG. 4 is an exploded view of a first clamp block of the clamping arrangement shown in FIG. 1;

FIG. 5 isbase:Sub>A schematic cross-sectional view of the clamping structure shown in FIG. 1 taken along the line A-A;

FIG. 6 is a schematic view of a portion of the clamping structure shown in FIG. 1;

FIG. 7a is a schematic cross-sectional view of the clamping structure shown in FIG. 1 taken along the line B-B;

FIG. 7b is a schematic diagram of the structure shown in FIG. 7a in another embodiment;

FIG. 8 is a schematic view of the combination of the limiting member and the first gear and the frame shown in FIG. 1;

FIG. 9 is a schematic cross-sectional view of the combination of the structure shown in FIG. 8 and a lower clip cover;

fig. 10 is a schematic cross-sectional view of the clamping structure shown in fig. 1 in the direction C-C.

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

In the description of the embodiments of the present application, it should be noted that the terms "mounted" and "connected" are to be interpreted broadly, unless explicitly stated or limited otherwise, and for example, "connected" may or may not be detachably connected; may be directly connected or indirectly connected through an intermediate. In the embodiments of the present application, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in some embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "include" and its derivatives mean "including, but not limited to," unless otherwise specifically noted.

It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should also be noted that for ease of description, only the parts relevant to the application are shown in the drawings.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict.

The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, fig. 2 and fig. 3 together, fig. 1 is a schematic structural diagram of a clamping structure 100 according to an embodiment of the present disclosure. Fig. 2 is an exploded view of the clamping structure 100 shown in fig. 1. Fig. 3 is a partially exploded view of the clamping structure 100 shown in fig. 1 in another direction.

The present embodiment provides a clamping structure 100. The clamping structure 100 includes a housing 10, a first clamping block 20, a second clamping block 30, and a limiting member 40, wherein the first clamping block 20, the second clamping block 30, and the limiting member 40 are all disposed on the housing 10. A clamping space 50 is formed between the first clamping block 20 and the second clamping block 30, and the clamping space 50 is used for accommodating a key or a knob.

The housing 10 includes a frame 11, an upper clip cover 12, and a lower clip cover 13. The frame body 11 is a cylinder with an opening at only one end, and the upper clamping cover 12 covers the opening of the frame body 11. The lower clip cover 13 is interposed between the upper clip cover 12 and the frame 11. A portion of the first block 20 and a portion of the second block 30 are provided in a space between the upper and lower covers 12 and 13. The stopper 40 is provided in a space between the lower clip cover 13 and an end surface of the frame 11 remote from the upper clip cover 12.

In this embodiment, the upper and lower covers 12 and 13 are connected to the frame 11 by bolts. Of course, in other embodiments, the upper cover 12 and the lower cover 13 can be connected to the frame 11 by other connecting methods such as clamping, gluing, and the like. The present application does not limit the manner of attachment of the housing 10.

The upper clip cover 12 is provided with a first escape hole 121 and a second escape hole 122. A portion of the first clamping block 20 located in the space between the upper and lower clamping covers 12 and 13 is connected to another portion of the first clamping block 20 through the first escape hole 121. A portion of the second clamping block 30 located in the space between the upper and lower clamping covers 12 and 13 is connected to another portion of the second clamping block 30 through the second avoiding hole 122.

Referring to fig. 4 and 5, fig. 4 is an exploded view of the first clamping block 20 of the clamping structure 100 shown in fig. 1. Fig. 5 isbase:Sub>A schematic sectional view of the clamping structure shown in fig. 1 inbase:Sub>A directionbase:Sub>A-base:Sub>A.

In this embodiment, the first block 20 may include a first clamping portion 22, a first engaging portion 23, a first extending portion 24, and a first block bracket 25. The first engaging portion 23 is provided on a surface of the first clamping portion 22 facing the lower clip cover 13. The first block holder 25 is located on the surface of the first clamping portion 22 remote from the lower clip cover 13. One end of the first extending portion 24 is connected to the first clamping portion 22, and the other end passes through the first avoiding hole 121 and is connected to the first clamping block bracket 25, so as to connect the first clamping block bracket 25 and the first clamping portion 22. Wherein the first engagement portion 23 constitutes a first slider.

The second block 30 may include a second clamping portion 32, a second engaging portion 33, a second extending portion 34, and a second block bracket 35. Wherein the second engagement portion 33 constitutes a second slider. It is understood that the structure of the second clamping block 30 is the same as that of the first clamping block 20, and thus, the description thereof is omitted. A clamping space 50 is formed between the first clamping block holder 25 and the second clamping block holder 35.

Of course, in other embodiments, the first block holder 25 and the first clamping portion 22 may also be an integrally formed structure, and the second block holder 35 and the second clamping portion 32 may also be an integrally formed structure, which is not limited in this application.

Referring to fig. 3, fig. 6 and fig. 7a together, fig. 6 is a partial structural schematic diagram of the clamping structure 100 shown in fig. 1. Fig. 7a is a schematic cross-sectional view of the clamping structure 100 shown in fig. 1 in the direction B-B.

In this embodiment, the clamping structure 100 may further include a transmission member 60, and the transmission member 60 is disposed between the first engagement portion 23 (i.e., the first slider) and the second engagement portion 33 (i.e., the second slider). In some embodiments, the transmission member 60 may include a first gear 61, and the lower clip cover 13 may be provided with a first protrusion 14 and a second protrusion 15 which are spaced apart. One side of the first engaging portion 23 engages with the first gear 61, and the other opposite side thereof abuts against the first protrusion 14. One side of the second engaging portion 33 engages with the first gear 61, and the other opposite side thereof abuts against the second protrusion 15. That is, the first gear 61 and the first protrusion 14 form a first sliding slot, and also form a second sliding slot with the second protrusion 15. The first engaging portion 23 cooperates with the first sliding groove to realize the sliding of the first clamping block 20 relative to the housing 10. The second engaging portion 33 cooperates with the second sliding groove to realize the sliding of the second clamping block 30 relative to the housing 10.

It is understood that the clamping structure 100 in the present embodiment enables the distance by which the first block 20 and the second block 30 slide relative to the lower clip cover 13 to be synchronized by providing the first gear 61 between the first engaging portion 23 and the second engaging portion 33. In other words, when the first clamping block 20 slides a certain distance relative to the lower clamping cover 13, the second clamping block 30 also slides a corresponding same distance relative to the lower clamping cover 13, thereby effectively improving the motion synchronism between the first clamping block 20 and the second clamping block 30. When the user controls one of the first clamping block 20 and the second clamping block 30 to slide relative to the lower clamping cover 13, the other one can correspondingly move without the control of the user, so that the operation efficiency and the user experience are effectively improved.

In this embodiment, when the first clamping block 20 slides to the first position relative to the housing 10 and the second clamping block 30 slides to the third position relative to the housing 10, the first clamping block 20 and the second clamping block 30 approach each other and the clamping space 50 is reduced. At this time, the position-limiting members 40 respectively limit the first clamping blocks 20 and the second clamping blocks 30 to fix the size of the clamping space 50 at this time. When the first clamping block 20 slides to the second position relative to the housing 10 and the second clamping block 30 slides to the fourth position relative to the housing 10, the first clamping block 20 and the second clamping block 30 are away from each other, and the clamping space 50 is increased. At this time, the limiting members 40 respectively limit the first clamping block 20 and the second clamping block 30 to fix the size of the clamping space 50 at this time.

It can be understood that the clamping structure 100 of the present application enables the first clamping block 20 and the second clamping block 30 to be slidably connected to the housing 10 through the cooperation of the first sliding block (i.e., the first engaging portion 23) and the first sliding slot (i.e., the first gear 61 and the first protrusion 14), and the cooperation of the second sliding block (i.e., the second engaging portion 33) and the second sliding slot (i.e., the first gear 61 and the second protrusion 15). The clamping structure 100 of the present application controls the sliding of the first clamping block 20 and the second clamping block 30 relative to the housing 10, so that the first clamping block 20 and the second clamping block 30 can move toward or away from each other, thereby reducing or increasing the clamping space 50. Meanwhile, the positions of the first clamping block 20 and the second clamping block 30 after movement are limited by the limiting member 40, so as to fix the size of the clamping space 50 at the moment, and therefore, the clamping space 50 can be adapted to keys or knobs with different sizes.

Of course, in an embodiment of other embodiments, the clamping structure 100 may also have only the first clamping block 20 slidably connected with the housing 10, and the second clamping block 30 may also be fixedly connected with the housing 10. The clamping structure 100 is controlled to slide relative to the housing 10, and move closer to or away from the second clamping block 30, so as to reduce or increase the size of the clamping space 50. At this time, the limiting member 40 only limits the first clamping block 20 to fix the size of the clamping space 50. In another embodiment of other embodiments, the second clamping block 30 may also be integrally formed with the housing 10, and the application does not limit the connection manner of the second clamping block 30 and the housing 10.

Referring to fig. 7b, fig. 7b is a schematic structural diagram of the structure shown in fig. 7a according to another embodiment.

In some embodiments, the clamping structure 100 may also not include a first gear, and the lower clamp cover 13 may be provided with two first protrusions 14 and two second protrusions 15. The two first protrusions 14 are spaced to form a first sliding slot. Two second protrusions 15 are spaced apart to form a second sliding groove. The first engaging portion 23 cooperates with the first sliding slot to realize sliding of the first clamping block 20 relative to the housing 10. The second engaging portion 33 cooperates with the second sliding groove to realize the sliding of the second clamping block 30 relative to the housing 10. The application does not limit the specific form and structure of the first chute and the second chute.

Referring to fig. 6, 8 and 9, fig. 8 is a schematic structural view of the combination of the limiting member 40 and the first gear 61 shown in fig. 1 and the frame 11. Fig. 9 is a schematic sectional view of the structure shown in fig. 8 combined with the lower clip cover 13.

In this embodiment, the transmission member 60 may further include a rotating shaft 62, and the limiting member 40 may include a second gear 41 and a stopping portion 42. One end of the rotation shaft 62 passes through the centers of the first gear 61 and the second gear 41, respectively, and the other end is attached to the bottom of the frame 11. The first gear 61 is connected to the second gear 41 through a rotating shaft 62 to realize coaxial rotation of the first gear 61 and the second gear 41. The stopper 42 is fixed to the frame 11 and engages with the second gear 41. The stopper 42 is used for limiting the first clamping block 20 when the first clamping block 20 slides to the first position or the second position.

In some embodiments, the clamping structure 100 may further include a first resilient member 70. The first elastic member 70 is interposed between the first clamping portion 22 and the second clamping portion 32. One end of the first elastic element 70 abuts against the first clamping portion 22, and the other end abuts against the second clamping portion 32. When the first clamping block 20 slides to the first position toward the second clamping block 30, the first elastic element 70 is in a compressed state. When the first clamping block 20 slides to the second position in the opposite direction of the second clamping block 30, the first elastic member 70 is restored to the original state.

The stopper 42 may include a pawl 421 and a fixing pin 422, and the pawl 421 is mounted to the frame 11 by the fixing pin 422. The second gear 41 is a ratchet gear, and the second gear 41 is engaged with the pawl 421 to realize the engagement of the stopper portion 42 with the second gear 41.

The stopper 42 may further include a second elastic member 423 and an abutting portion 424. The holding portion 424 is connected to an end of the pawl 421 away from where the pawl 421 engages with the second gear 41. The second elastic member 423 is provided on a surface of the pawl 421 on a side facing away from the second gear 41. When the pawl 421 engages with the second gear 41, the second elastic member 423 is in an initial state. When the pawl 421 releases the second gear 41, the second elastic member 423 is in a compressed state.

The frame 11 may also be provided with through holes 16. The through hole 16 is formed on the surface of the abutting portion 424 facing the frame 11. When an external force acts on the abutting portion 424 through the through hole 16, the pawl 421 releases the second gear 41, and the second elastic member 423 is in a compressed state.

It can be understood that, in the clamping structure 100 of the present embodiment, when the first clamping block 20 slides to the first position relative to the housing 10, the first elastic member 70 is gradually compressed, and at this time, the second gear 41 is engaged with the pawl 421, so that the first clamping block 20 can only move towards the first position, and cannot move reversely due to the first elastic member 70. When the first clamping block 20 moves to the first position, the second gear 41 is engaged with the pawl 421 to limit the first clamping block 20, and the size of the clamping space 50 is fixed. When an external force acts on the abutting portion 424 through the through hole 16, the pawl 421 releases the second gear 41, and at this time, the first elastic element 70 gradually returns to the initial state, so that the first clamping block 20 can move in the direction opposite to the first position relative to the housing 10. When the first clamping block 20 moves to the second position, no external force is applied to the abutting portion 424, and at this time, the second elastic member 423 is restored to the initial state from the compressed state, and the pawl 421 is abutted to the second gear 41 again, so that the pawl 421 and the second gear 41 are re-engaged to limit the first clamping block 20, and the size of the clamping space 50 at this time is fixed. In other words, the clamping structure 100 of the present application controls the matching state of the pawl 421 and the second gear 41 through the state changes of the abutting portion 424 and the second elastic member 423 to limit the first clamping block 20 in different moving processes, and controls the movement of the first clamping block 20 in different directions through the state change of the first elastic member 70, and the two are combined to fix the clamping space 50 after reducing or increasing the size thereof, and adjust the size of the clamping space 50, so that the clamping structure 100 can be adapted to keys or knobs with different sizes, and is better in adaptability and easy to operate.

Referring to fig. 2 and 10 together, fig. 10 is a schematic cross-sectional view of the clamping structure 100 shown in fig. 1 along a direction C-C.

In this embodiment, the upper clamping cover 12 further has a first position-limiting pillar 123 and a second position-limiting pillar 124. The first position-limiting post 123 is disposed on the outer surface of the upper clamping cover 12 facing the first clamping block bracket 25. The first clamping block bracket 25 is further provided with a third sliding groove 251, and the first limiting column 123 is mounted on the third sliding groove 251 to limit the movement of the first clamping block 20 in a direction other than the axial direction (the first direction) of the first elastic member 70. The second position-limiting column 124 is disposed on the outer surface of the upper clamping cover 12 facing the second clamping block bracket 35. The second clamping block holder 35 is further provided with a fourth sliding groove 351, and the second stopper post 124 is mounted on the fourth sliding groove 351 to restrict the second clamping block 30 from moving in the direction other than the first direction.

It can be understood that, the clamping structure 100 of the present application cooperates with the third sliding groove 251 through the arrangement of the first limiting column 123, and the second limiting column 124 cooperates with the fourth sliding groove 351, so that the first clamping block bracket 25 and the second clamping block bracket 35 can only move along the first direction, the first clamping block bracket 25 and/or the second clamping block bracket 35 are effectively prevented from moving along the direction except the first direction, and the first clamping block bracket 25 and/or the second clamping block bracket 35 can be more attached to a key or a knob, thereby enhancing the clamping effect.

The embodiment of the present application further provides an electronic lock, which includes a housing and the clamping structure 100 described in any of the above embodiments. The clamping structure 100 is housed inside the housing. The application discloses electronic lock can adapt key or knob on the not unidimensional mechanical lock to reform transform the mechanical lock into the electronic lock, make the switch electronic lock that the user can be more convenient, improved user's use and experienced.

In some embodiments, the lower cover 13 may further have a third protrusion and a fourth protrusion, the first block 20 has a first slide rail, and the second block 30 has a second slide rail. The first clamping block 20 slides relative to the housing 10 through the cooperation of the first slide rail and the third projection. The second clamping block 30 slides relative to the housing 10 through the cooperation of the second slide rail and the fourth protrusion. The present application does not limit the manner in which the first and second clamping blocks 20 and 30 are slidably connected to the housing 10.

It should be noted that, in the present application, features in the embodiments and the examples may be combined with each other without conflict, and any combination of features in different embodiments is also within the scope of the present application, that is, any combination of the above-described embodiments may be also be included according to actual needs.

The above embodiments and embodiments of the present application are only examples and embodiments, and the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (13)

1. A clamping structure is characterized by comprising a shell, a first clamping block, a second clamping block and a limiting piece, wherein the first clamping block, the second clamping block and the limiting piece are arranged on the shell;

when the first clamping block slides to a first position relative to the shell, the first clamping block is close to the second clamping block, and the clamping space is reduced;

when the first clamping block slides to a second position relative to the shell, the first clamping block is far away from the second clamping block, and the clamping space is increased;

the limiting piece is used for limiting the first clamping block when the first clamping block slides to the first position or the second position.

2. The clamping structure according to claim 1, wherein one of the housing or the second clamping block is provided with a second slider and the other is provided with a second runner, and the second clamping block slides relative to the housing by cooperation of the second slider and the second runner;

when the second clamping block slides to a third position relative to the shell, the second clamping block is close to the first clamping block, and the clamping space is reduced;

when the second clamping block slides to a fourth position relative to the shell, the second clamping block is far away from the first clamping block, and the clamping space is increased;

the limiting piece is used for limiting the second clamping block when the second clamping block slides to a third position or a fourth position.

3. The clamping structure of claim 2, wherein the first sliding slot and the second sliding slot are disposed in the housing, the first sliding block is disposed in the first clamping block, and the second sliding block is disposed in the second clamping block.

4. The clamping structure according to claim 3, wherein the first clamping block includes a first clamping portion and a first engaging portion provided on a surface of the first clamping portion facing the first runner, the first engaging portion constituting the first slider;

the second clamping block comprises a second clamping portion and a second engaging portion, the second engaging portion is arranged on the surface, facing the second sliding groove, of the second clamping portion, and the second engaging portion forms the second sliding block.

5. The clamping structure according to claim 4, further comprising a transmission member located between the first engaging portion and the second engaging portion;

the transmission part comprises a first gear, the first gear is meshed with the first meshing part, and the first gear is also meshed with the second meshing part;

the shell is provided with a first lug and a second lug which are arranged at intervals, the first gear and the first lug form the first sliding groove, and the first gear and the second lug form the second sliding groove.

6. The clamping structure according to claim 5, wherein the transmission member further comprises a rotating shaft, the limiting member comprises a second gear and a stopping portion, the first gear is connected with the second gear through the rotating shaft, and the first gear and the second gear rotate coaxially;

the stopping part is fixed on the shell and matched with the second gear, and the stopping part is used for limiting the first clamping block when the first clamping block slides to the first position or the second position.

7. The clamping structure according to claim 6, further comprising a first elastic member sandwiched between the first clamping block and the second clamping block;

the stopping part further comprises a pawl and a second elastic piece, the second gear is a ratchet wheel, the second gear is matched with the pawl, and the second elastic piece is arranged on the surface of one side, back to the second gear, of the pawl;

when the pawl is matched with the second gear, the second elastic piece is in an initial state;

when the pawl releases the second gear, the second elastic piece is in a compressed state.

8. The clamping structure of claim 7, wherein the stop portion further comprises an abutting portion connected to an end of the pawl remote from where the pawl engages the second gear;

the shell is also provided with a through hole, and the through hole is formed in the surface of the abutting part, which is opposite to the shell;

when external force acts on the abutting part through the through hole, the pawl releases the second gear, and the second elastic piece is in a compressed state.

9. The clamping structure of any one of claims 7 to 8, wherein the first clamping block further comprises a first clamping block bracket, the second clamping block further comprises a second clamping block bracket, the first clamping block bracket is connected to a surface of the first clamping portion away from the second gear, and the second clamping block bracket is connected to a surface of the second clamping portion away from the second gear;

the first clamping part drives the first clamping block bracket to move, and the second clamping part drives the second clamping block bracket to move;

a clamping space is formed between the first clamping block bracket and the second clamping block bracket.

10. The clamping structure of claim 9, wherein the housing comprises a frame, an upper clamping cover and a lower clamping cover, the upper clamping cover is connected to the frame, and the lower clamping cover is clamped between the upper clamping cover and the frame;

the first clamping part, the second clamping part, the first meshing part, the second meshing part, the first gear and the first elastic piece are arranged between the upper clamping cover and the lower clamping cover;

the limiting piece is arranged between the lower clamping cover and the end face, far away from the upper clamping cover, of the frame body;

the upper clamping cover is provided with a first avoidance hole and a second avoidance hole, the first clamping block further comprises a first extending part, and the second clamping block further comprises a second extending part;

one end of the first extending part is connected with the first clamping part, and the other end of the first extending part penetrates through the first avoidance hole to be connected with the first clamping block bracket;

one end of the second extending portion is connected with the second clamping portion, and the other end of the second extending portion penetrates through the second avoiding hole to be connected with the second clamping block support.

11. The clamping structure according to claim 10, wherein the upper clamping cover is further provided with a first limiting post, the first limiting post is arranged on the outer surface of the upper clamping cover facing the first clamping block bracket, and the first clamping block bracket is provided with a third sliding groove;

the first limiting column is arranged on the third sliding groove and limits the first clamping block to move in the direction except the axial direction of the first elastic piece;

the axial direction of the first elastic piece is a first direction.

12. The clamping structure according to claim 11, wherein the upper clamping cover is further provided with a second limiting column, the second limiting column is arranged on the outer surface of the upper clamping cover facing the second clamping block bracket, and the second clamping block bracket is provided with a fourth sliding groove;

the second limiting column is mounted on the fourth sliding groove and limits the second clamping block to move in the direction except the first direction.

13. An electronic lock comprising a housing and a clamping structure as claimed in any one of claims 1 to 12, said clamping structure being housed within said housing.

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