CN217743347U - Lock catch structure - Google Patents

Abstract

The embodiment of the application discloses a lock catch structure, which is fixedly arranged in a mounting hole formed in a carrying component, and is provided with a first end face and a second end face which are axially arranged and mutually deviate; the middle part of the lock catch structure is provided with a clamping space for the binding band to pass through, and the clamping space axially penetrates through the first end face and the second end face; the locking structure is provided with a cantilever structure arranged close to the clamping space, the fixed end of the cantilever structure is arranged close to the second end face, and the free end of the cantilever structure is arranged far away from the second end face; the clamping space comprises two oppositely arranged clamping surfaces, and at least one of the clamping surfaces is formed on the cantilever structure; a clamping groove is formed in one side, away from the clamping space, of the cantilever structure, and comprises a first groove wall surface and a second groove wall surface which are opposite; the first groove wall surface is adjacent to the first end surface, the second groove wall surface is adjacent to the second end surface, and the first groove wall surface is arranged in an inward inclined mode in a direction close to the second end surface in the axial direction. The application's hasp structure can loosen fast and can firmly lock the bandage again.

Description

Lock catch structure

Technical Field

The application relates to the technical field of wearable equipment, especially, relate to a hasp structure.

Background

The thermal moxibustion instrument is a device for carrying out thermal moxibustion physical therapy on acupuncture points of a human body by utilizing a heating mode. In the using process, a heating part of the thermal moxibustion instrument, namely a moxibustion head, needs to be tightly attached to the acupuncture points of the human body.

In the prior art, chinese patent (CN 105853203B) discloses a thermal moxibustion instrument; chinese patent (CN 211461213U) discloses an electronic thermal moxibustion apparatus; chinese patent (CN 213431653U) discloses a multifunctional knee joint rheumatism and thermal moxibustion instrument; chinese patent (CN 214388205U) discloses a graphene moxibustion head and a graphene thermal moxibustion instrument. However, in the use process of the thermal moxibustion instrument disclosed by the prior patent structure, because the structure is designed into an integrated structure, each part of the thermal moxibustion instrument cannot be easily disassembled, and the thermal moxibustion instrument has the defects of inconvenient use and inconvenience for respectively cleaning and maintaining each part. In order to solve the defects in the prior art, the applicant designs an electronic thermal moxibustion instrument, and in the application structure, the heating film part structure and the host machine part structure of the thermal moxibustion instrument can be well disassembled and assembled, so that the electronic thermal moxibustion instrument is more convenient to use. However, in the use, electron hot moxibustion appearance is usually binded the constraint on the human body through connecting the bandage that holds in the palm and carry the component both ends, and bandage and hold in the palm and carry and to set up the hasp structure usually between the component, and what kind of design of hasp structure should be just can be more stable bind the hot moxibustion appearance and bind the constraint on the health and can be better avoid not hard up to can also pull down hot moxibustion appearance from the health after more convenient to use, become further problem that remains to solve.

SUMMERY OF THE UTILITY MODEL

The main objective of this application is to provide a hasp structure, aims at solving current hasp structure and is conveniently adjusting the length of bandage and in order to make things convenient for under the prerequisite of pulling down the hot moxibustion instrument from the health, be difficult to have the technical problem of firm closure bandage concurrently.

In order to achieve the purpose, the lock catch structure is fixedly arranged in a mounting hole arranged on the carrying component,

the lock catch structure is provided with a first end face and a second end face which are positioned in the axial direction and mutually deviate; a clamping space for the binding band to pass through is arranged in the middle of the lock catch structure, and the clamping space axially penetrates through the first end face and the second end face;

the locking structure is provided with a cantilever structure which is arranged adjacent to the clamping space, the fixed end of the cantilever structure is arranged adjacent to the second end face, and the free end of the cantilever structure is arranged far away from the second end face;

the clamping space comprises two oppositely arranged clamping surfaces, and at least one of the clamping surfaces is formed on the cantilever structure;

a clamping groove is formed in one side, away from the clamping space, of the cantilever structure, and comprises a first groove wall surface and a second groove wall surface which are opposite; the first groove wall surface is adjacent to the first end surface, the second groove wall surface is adjacent to the second end surface, and the first groove wall surface is arranged in an inward inclined manner in a direction axially close to the second end surface.

Preferably, the clamping surface on the cantilever structure is arranged in a tooth-shaped structure, and a chamfer structure is arranged at the joint of the clamping surface and the second end surface.

Preferably, the locking structure comprises an abutting sleeve and a locking body, wherein,

the butting sleeve is fixedly arranged in a mounting hole formed in the carrying component, and a butting hole is formed in an inner cavity of the butting sleeve;

the lock catch body is arranged in the abutting hole; the lock catch body comprises a support ring and two cantilever structures, each cantilever structure comprises a connecting block and a clamping block, wherein,

the supporting ring is arranged on the outer side of one end of the abutting hole, an inner hole of the supporting ring is in butt joint with the abutting hole, and the second end face and the second groove wall face are formed on the supporting ring;

the two connecting blocks are respectively connected to two opposite inner edges of the support ring and extend towards the center of the support ring;

the two clamping blocks are respectively connected to the inner ends of the two connecting blocks, extend along the direction departing from the corresponding connecting block and protrude to the outer side of the other end of the abutting hole; the two clamping surfaces are respectively formed on the opposite inner side surfaces of the two clamping blocks; each clamping block is of a semi-cylindrical structure, a limiting structure is convexly arranged on an outer arc surface of one end, far away from the connecting block, of each clamping block, and the first groove wall surface is formed on the limiting structure;

when the binding band penetrates through the clamping space, the binding band transversely stretches the two clamping blocks to limit one ends of the two clamping blocks, which are far away from the connecting block, from falling out of the abutting holes;

when the binding band slides from the exposed side of the clamping block to the side of the supporting ring in the clamping space, the clamping block has a tendency of sliding towards the side of the supporting ring, under the constraint of the abutting holes, the two clamping blocks swing towards each other, and two opposite clamping surfaces at one ends of the two clamping blocks, which are far away from the connecting block, have a tendency of folding so as to clamp at two sides of the binding band and limit the sliding of the binding band.

Preferably, limit structure includes spacing protruding edge, spacing protruding edge is located the grip block is kept away from the outside arc surface of the one end of connecting block and extends along the circumferential direction.

Preferably, two the opposite medial surface of grip block is equipped with the groove of stepping down, the groove of stepping down is followed the diametric (al) extension of grip block just runs through the grip block outer peripheral face.

Preferably, the side wall surface of the abdicating groove far away from the support ring is provided with a rounding structure at the opening close to the clamping space.

Preferably, the grip block is kept away from the whole conical surface that is of the lateral surface of the one end of connecting block, it has the taper hole section to support the hole, the taper hole section with the grip block is kept away from the lateral surface of the one end of connecting block is the cooperation setting.

Preferably, the inner side surfaces of the two clamping blocks, which are opposite to one end far away from the connecting block, are designed in a tooth-shaped structure.

Preferably, the side wall surface of the abdicating groove close to the support ring is provided with a rounding structure at the opening close to the clamping space.

Preferably, the strap is a hollow cord.

The utility model discloses a hasp structure is when cooperating with the bandage, when the orientation pulling bandage in order to lock that the space was dressed to the expansion (increase the length that is used for enclosing and forms annular space of bandage), frictional force and first groove wall department between bandage and the clamping face can all make the clamping face that is located cantilever structure draw close to another clamping face towards the separation in clamping space to become to draw tight locking location to the bandage. During the unblock, enlarge the distance between two clamping faces, can enlarge the wearing space along hasp structure's axis direction pulling bandage again, break away from bandage and hasp structure completely even.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of an explosion structure of the latch structure of the present invention applied to an electronic thermal moxibustion instrument;

fig. 2 is a schematic view of another explosion structure of the locking structure of the present invention applied to an electronic thermal moxibustion instrument;

fig. 3 is an explosion structure diagram of the latch structure of the present invention;

FIG. 4 is a schematic cross-sectional structure of the structure of FIG. 3;

FIG. 5 is a schematic view of an exploded view of another angle of the structure of FIG. 3;

fig. 6 is a schematic top view of the latch structure of the present invention;

FIG. 7 is a schematic cross-sectional view taken along line VII-VII of FIG. 6;

FIG. 8 is an enlarged cross-sectional view of the latch body of FIG. 7;

fig. 9 is a schematic view of the matching structure of the buckle body and the binding band in fig. 7.

The reference numbers indicate:

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, in an embodiment, the locking structure 100 provided in the present application is fixedly installed in a placement hole 201 formed in a supporting member 200.

With further reference to fig. 2 to 7, the locking structure 100 has a first end surface 13 and a second end surface 14 located in the axial direction and facing away from each other; the middle part of the locking structure 100 is provided with a clamping space 15 for the binding band 300 to pass through, and the clamping space 15 axially penetrates through the first end surface 13 and the second end surface 14;

the latch structure 100 has a cantilever structure 17 disposed adjacent to the clamping space 15, a fixed end of the cantilever structure 17 is disposed adjacent to the second end surface 14, and a free end is disposed away from the second end surface 14;

the clamping space 15 comprises two oppositely arranged clamping surfaces 18, at least one of which 18 is formed on the cantilever structure 17;

a clamping groove 19 is formed in one side of the cantilever structure 17, which is away from the clamping space 15, and the clamping groove 19 includes a first groove wall surface 191 and a second groove wall surface 192 which are opposite to each other; the first slot wall surface 191 is adjacent to the first end surface 13, the second slot wall surface 192 is adjacent to the second end surface 14, and the first slot wall surface 191 is inclined inwardly in a direction axially close to the second end surface 14.

In this embodiment, it can be understood that the cradle member 200 is a structure that is easily engaged with the strap 300 to enclose a wearing space. Referring to fig. 1 and 2, as an example, a thermal moxibustion instrument may be mounted on the carrying member 200, and the thermal moxibustion instrument includes a main unit 400 and a heating film 500, wherein a power supply connector is disposed on the main unit 400, and an electrical connector is disposed on the heating film 500; in a wearing state, the main body 400 and the heating film 500 are respectively attached to both side surfaces in the thickness direction of the carrying member 200, and the power supply connector and the power receiving connector are detachably and electrically connected through the carrying body. It is understood that other wearable devices may be mounted on the cradle member 200. The free end of the cantilever structure 17 can swing when subjected to a lateral compressive force, thereby changing the size of the clamping space 15. For convenience of installation, the locking structure 100 is fixed in the installation hole 201 formed in the supporting member 200, and it should be understood that the fixation should be broadly understood, that is, the locking structure 100 does not fall off from the installation hole 201 when the binding band 300 is pulled out.

The utility model discloses a hasp structure 100 is when cooperating with bandage 300, when the orientation pulling bandage 300 that increases bandage 300 and wear the space (increase bandage 300 be used for enclosing the length that forms annular space) with locking, frictional force between bandage 300 and the clamping face 18 and first groove wall surface 191 department all can make the clamping face 18 that is located cantilever structure 17 draw close to another clamping face 18 towards the separation of clamping space 15 to form about the tight locking location of drawing to bandage 300. When the lock is unlocked, the distance between the two clamping surfaces 18 is increased, and then the strap 300 is pulled along the axial direction of the lock structure 100, so that the wearing space can be increased, and even the strap 300 is completely separated from the lock structure 100.

Furthermore, the clamping surface 18 of the cantilever structure 17 is arranged in a tooth-shaped structure, and a chamfer structure is arranged at the joint of the clamping surface 18 and the second end surface 14.

In this embodiment, the tooth structure is provided to facilitate the friction between the clamping surface 18 and the strap 300, so as to make the locking more firm.

Further, the locking structure 100 includes an abutting sleeve 10 and a locking body 12, wherein,

the abutting sleeve 10 is fixedly arranged in a placing hole 201 formed in the carrying member 200, and an abutting hole 11 is formed in an inner cavity of the abutting sleeve 10;

the lock catch body 12 is arranged in the abutting hole 11; the latch body 12 comprises a support ring 16 and two cantilever structures 17, each cantilever structure 17 comprising a connecting block 20 and a clamping block 21, wherein,

the support ring 16 is arranged outside one end of the abutting hole 11, an inner hole of the support ring 16 is abutted with the abutting hole 11, and the second end face 14 and the second groove wall face 192 are formed on the support ring 16;

two connecting blocks 20 are respectively connected to two opposite inner edges of the support ring 16 and extend toward the center of the support ring 16;

the two clamping blocks 21 are respectively connected to the inner ends of the two connecting blocks 20, and the two clamping blocks 21 extend along the direction departing from the corresponding connecting block 20 and protrude out of the other end of the abutting hole 11; the two clamping surfaces 18 are respectively formed on the opposite inner side surfaces of the two clamping blocks 21; each clamping block 21 is of a semi-cylindrical structure, a limiting structure 22 is convexly arranged on the outer circular arc surface of one end, far away from the connecting block 20, of each clamping block 21, and a first groove wall surface 191 is formed on the limiting structure 22;

when the binding band 300 is arranged in the clamping space 15, the binding band 300 transversely expands the two clamping blocks 21 to limit one ends of the two clamping blocks 21 far away from the connecting block 20 to be separated from the abutting holes 11;

when the strap 300 slides from the side of the clamping space 15 exposed from the clamping block 21 to the side of the supporting ring 16, so that the clamping block 21 has a tendency to slide towards the side of the supporting ring 16, the two clamping blocks 21 swing towards each other under the constraint of the abutting hole 11, and the two opposite clamping surfaces 18 at the ends of the two clamping blocks 21 far away from the connecting block 20 have a tendency to close up to clamp on the two sides of the strap 300 and limit the sliding thereof.

In this embodiment, the locking structure 100 is a split structure, so as to facilitate assembly in the installation hole 201. As an example, the abutment sleeve 10 is a metal member and is mounted in advance in the mounting hole 201, and specifically, the abutment sleeve 10 is a vented buckle with a claw, that is, the inner cavity of the abutment sleeve 10 has a through shape with two ends, and two ends of the abutment sleeve 10 are formed with claw nails which are folded outwards and are fitted into the edge of the mounting hole 201. Since the structure of the lock body 12 is relatively complicated, the lock body 12 is preferably made of plastic for cost reduction. During locking, in order to increase friction force, during locking, an included angle is formed between the movement direction of the binding band 300 and the axial direction of the clamping space 15, the friction force is large, the binding band 300 is pulled to slide in the clamping space 15 towards the support ring 16, the friction force is also large, the two clamping blocks 21 are driven to move towards the support ring 16, under the constraint of the abutting holes 11, the far ends of the two clamping blocks 21 have a closing trend, the friction force is large, and the locking positioning is formed on the binding band 300 and is tightened more. During unlocking, the pulling force direction of the binding band 300 is approximately consistent with the axial direction of the clamping space 15 by finger operation, the friction force is reduced, meanwhile, the fingers tightly support the support ring 16 and the connecting block 20, so that the clamping block 21 has a movement trend deviating from the direction of the support ring 16 in the abutting hole 11, the restraint of the abutting hole 11 on the clamping block 21 is released, the two clamping blocks 21 have an opening trend, the friction force between the clamping block 21 and the binding band 300 is further reduced, and the binding band 300 can slide more smoothly in the clamping space 15.

Further, in order to facilitate the processing and manufacturing, the limiting structure 22 includes a limiting convex edge, and the limiting convex edge is disposed on an outer arc surface of one end of the clamping block 21, which is far away from the connecting block 20, and extends along the circumferential direction.

Further, in order to increase the friction between the holding surface 18 and the band 300, the inner surfaces of the two holding blocks 21 facing each other are provided with a relief groove 181, and the relief groove 181 extends in the diameter direction of the holding block 21 and penetrates the outer peripheral surface of the holding block 21.

In this embodiment, referring to fig. 9, when locking, the movement direction of the binding band 300 forms an angle with the axial direction of the holding space 15, so that the binding band 300 is deformed, and a part of the binding band 300, such as a dotted line indicated by L1, is pushed into the receding groove 181 on one side thereof, thereby forming a relatively engaged structure; another portion of the strap 300 is recessed such that an imaginary line indicated by L2 contacts the clamping surface 18 on the opposite side below the side relief groove 181. In this manner, the engagement of strap 300 with clamping surface 18 may provide greater resistance to loosening, thereby providing a more secure engagement of snap features 100 with strap 300. Preferably, in order to generate a large radial deformation of the band 300, the band 300 is a hollow string. By utilizing the structural elasticity of the hollow rope, on one hand, the hollow rope can easily pass through the clamping space 15, on the other hand, enough elasticity generates an expansion force on the clamping block 21, and further generates a friction force, and the rope and the lock catch keep friction in a larger distance space.

Further, the side wall face of the relief groove 181 remote from the support ring 16 has a rounded structure at the opening near the clamping space 15. Thus, when the strap 300 is pulled in the positive direction, the clamping force applied to the strap 300 is smaller, and the use is more convenient.

Furtherly, the lateral surface that connecting block 20's one end was kept away from to grip block 21 wholly is the conical surface, and butt hole 11 has the taper hole section, and the taper hole section is the cooperation setting with the lateral surface that connecting block 20's one end was kept away from to grip block 21. In this way, the clamping space 15 formed by the two clamping blocks 21 has better clamping effect.

Further, in order to increase the friction force and to better clamp the binding band 300, the inner side surfaces of the two clamping blocks 21 facing each other at the end far away from the connecting block 20 are designed to have a toothed structure.

Further, the side wall surface of the relief groove 181 adjacent to the support ring 16 has a rounded structure at the opening adjacent to the clamping space 15.

In this embodiment, when the fastening device is used, an included angle between the movement direction of the binding band 300 and the axial direction of the clamping space 15 can be increased, so that more parts of the binding band 300 are squeezed into the receding groove 181 on one side of the binding band, and a firmer engagement structure, that is, a firmer locking structure, is formed. Further, the strap 300 is subjected to less clamping force when the strap 300 is pulled in the positive direction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. A lock catch structure is fixedly arranged in a mounting hole arranged on a carrying component and is characterized in that,

the lock catch structure is provided with a first end face and a second end face which are positioned in the axial direction and mutually deviate; a clamping space for the binding band to pass through is formed in the middle of the lock catch structure, and the clamping space axially penetrates through the first end face and the second end face;

the locking structure is provided with a cantilever structure arranged close to the clamping space, the fixed end of the cantilever structure is arranged close to the second end face, and the free end of the cantilever structure is arranged far away from the second end face;

the clamping space comprises two oppositely arranged clamping surfaces, and at least one of the clamping surfaces is formed on the cantilever structure;

a clamping groove is formed in one side, away from the clamping space, of the cantilever structure, and comprises a first groove wall surface and a second groove wall surface which are opposite; the first groove wall surface is adjacent to the first end surface, the second groove wall surface is adjacent to the second end surface, and the first groove wall surface is arranged in an inward inclined manner in a direction axially close to the second end surface.

2. A latch construction according to claim 1, wherein the clamping surface of the cantilever structure is provided with a tooth-shaped structure, and a chamfer structure is provided at the junction of the clamping surface and the second end surface.

3. A latch construction according to claim 1, wherein the latch construction comprises an abutment sleeve and a latch body, wherein,

the butting sleeve is fixedly arranged in a mounting hole formed in the supporting member, and a butting hole is formed in an inner cavity of the butting sleeve;

the lock catch body is arranged in the abutting hole; the lock catch body comprises a support ring and two cantilever structures, each cantilever structure comprises a connecting block and a clamping block, wherein,

the supporting ring is arranged on the outer side of one end of the abutting hole, an inner hole of the supporting ring is in butt joint with the abutting hole, and the second end face and the second groove wall face are formed on the supporting ring;

the two connecting blocks are respectively connected to two opposite inner edges of the support ring and extend towards the center of the support ring;

the two clamping blocks are respectively connected to the inner ends of the two connecting blocks, extend along the direction departing from the corresponding connecting block and protrude to the outer side of the other end of the abutting hole; the two clamping surfaces are respectively formed on the opposite inner side surfaces of the two clamping blocks; each clamping block is of a semi-cylindrical structure, a limiting structure is convexly arranged on an outer arc surface of one end, far away from the connecting block, of each clamping block, and the first groove wall surface is formed on the limiting structure;

when the binding band is arranged in the clamping space in a penetrating mode, the binding band transversely stretches the two clamping blocks to limit one ends, far away from the connecting block, of the two clamping blocks to be separated from the abutting holes;

when the binding band slides from the exposed side of the clamping block to the side of the supporting ring in the clamping space, the clamping block has a tendency of sliding towards the side of the supporting ring, under the constraint of the abutting holes, the two clamping blocks swing towards each other, and two opposite clamping surfaces at one ends of the two clamping blocks, which are far away from the connecting block, have a tendency of folding so as to clamp at two sides of the binding band and limit the sliding of the binding band.

4. A latch arrangement according to claim 3, wherein the retaining formation comprises a retaining lip which extends circumferentially around an outer arcuate surface of the end of the holding block remote from the connecting block.

5. The latch structure according to claim 4, wherein the two opposite inner sides of the clamping blocks are provided with an abdicating groove extending along the diameter direction of the clamping blocks and penetrating through the outer peripheral surfaces of the clamping blocks.

6. A catch construction according to claim 5, wherein the side wall face of the relief groove remote from the support ring has a rounded configuration at the opening adjacent the clamping space.

7. The latch structure according to claim 4, wherein the outer surface of the end of the clamping block away from the connecting block is a conical surface, the abutting hole has a conical hole section, and the conical hole section is matched with the outer surface of the end of the clamping block away from the connecting block.

8. A latch construction according to claim 3, wherein the inner surfaces of the two clamping blocks facing each other at the end remote from the connecting block are of a toothed design.

9. A catch construction according to claim 3, wherein the side wall face of the relief groove adjacent the support ring has a rounded configuration at the opening adjacent the clamping space.

10. A hasp structure as claimed in any one of claims 1 to 9 wherein said tie is a hollow cord.

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