Buckle

Abstract

A buckle comprises a male buckle body and a female buckle body, a locking mechanism is arranged on the female buckle body, the male buckle body comprises a first male buckle body, a second male buckle body and a clamping column, the locking mechanism comprises a screw cap and a spring bolt, a rotating column penetrating through the spring bolt extends from the center of the screw cap, an end cover used for being connected with the rotating column in a clamped mode is arranged on the female buckle body, and the rotating column extends in the radial direction to form a connecting table; the spring bolt comprises a connecting ring and an elastic abutting part which are arranged on the rotating column in a sleeving mode, and a bayonet is formed in the radial direction of the connecting ring; a clamping groove is formed in the clamping column and corresponds to the elastic abutting part, the elastic abutting part shrinks in the radial direction of the connecting ring after the spring bolt rotates, and the elastic abutting part is disengaged from the clamping groove after shrinking; the screw cap arranged on the female buckle can drive the spring bolt to rotate through rotation, the elastic abutting portion contracts in the radial direction to enable the spring bolt to be separated from the clamping column, when the screw cap rotates on the female buckle, rotation of the magnetic buckle is limited due to the safety belt, it is guaranteed that the screw cap can independently rotate relative to the female buckle, and a user can conveniently unlock the magnetic buckle.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic buckles, and particularly relates to a buckle. Background Art

[0002] In the connection of safety belts, magnetic buckles are often used. For example, in baby strollers or child safety seats, magnetic buckles are usually required to connect safety belts in 3 directions or 5 directions. For a magnetic buckle connecting in 3 directions, it usually includes a female buckle and two male buckles. The female buckle is connected to the crotch belt, and the male buckles are respectively connected to the waist belts on both sides of the seat. For a magnetic buckle connecting in 5 directions, it usually includes a female buckle and four male buckles. The female buckle is connected to the crotch belt, and the male buckles are respectively connected to the waist belt and shoulder belt of the seat.

[0003] For such a magnetic buckle, a lock hole is usually provided on the female buckle, a lock tongue is usually provided on the male buckle, and a magnet is provided at the position corresponding to the lock tongue and the lock hole. When the female buckle and the male buckle approach each other, the magnet in the lock hole and the lock tongue will guide the lock tongue to quickly squeeze into the lock hole, so that the male buckle and the female buckle are locked and connected together. For such a magnetic buckle, although its magnet has a guiding effect and can guide the lock tongue to quickly enter the lock hole, the magnet is only distributed at the positions of the lock hole and the lock tongue, and it can only ensure that the lock tongue and the lock hole are quickly aligned, but cannot ensure that all parts of the male buckle and the female buckle are aligned.

[0004] Chinese Patent No. 201911381990.7 discloses a magnetic buckle, which includes a male buckle and a female buckle. The male buckle includes a separable first male buckle and a second male buckle. First magnets and second magnets are arranged at the lock tongues of the first male buckle and the second male buckle, and third magnets and fifth magnets are arranged at the edges of the first male buckle and the second male buckle. The first male buckle and the second male buckle can be quickly aligned and adsorbed together by the adsorption between the first magnets and the second magnets and the adsorption between the third magnets and the fifth magnets.

[0005] For the above magnetic buckle, when unlocking the magnetic buckle, the unlocking component needs to be pressed. In the locked state, the circular magnetic buckle will rotate due to the tangential component force, resulting in the need for both hands to operate when unlocking the magnetic buckle, which is not conducive to the daily operation of users. Therefore, the existing magnetic buckles still need to be further improved. Summary of the Utility Model

[0006] To solve the above technical problems, the utility model provides a buckle, which is convenient for users to unlock the magnetic buckle by arranging a rotary locking mechanism on the female buckle.

[0007] To achieve the above object, the technical solution of the present utility model is as follows: A buckle, including a male buckle and a female buckle. A locking mechanism is provided on the female buckle. The male buckle includes a first male buckle, a second male buckle, and a latch post that are separately arranged. A first latch post is provided on the first male buckle, and a second latch post is provided on the second male buckle. The locking mechanism includes a rotary cover and a locking tongue. A rotating post that penetrates the locking tongue extends from the center of the rotary cover. An end cover for clamping the rotating post is provided on the female buckle. A connecting platform for rotating the locking tongue extends radially from the rotating post. The locking tongue includes a connecting ring sleeved on the rotating post and an elastic abutting portion. A bayonet for clamping with the connecting platform is provided radially on the connecting ring. The latch post includes a first latch post provided on the first male buckle and a second latch post provided on the second male buckle. The first latch post and the second latch post are butted to form an integral body. A card slot is provided on the latch post, and the card slot is correspondingly arranged with the elastic abutting portion. After the locking tongue rotates, the elastic abutting portion contracts along the radial direction of the connecting ring, and the elastic abutting portion disengages from the card slot after contraction.

[0008] By adopting the above technical solution, the rotary cover provided on the female buckle can drive the locking tongue to rotate through rotation. The contraction of the elastic abutting portion in its radial direction disengages the locking tongue from the latch post, thereby realizing the unlocking between the female buckle and the male buckle. When the rotary cover rotates on the female buckle, the rotation of the magnetic buckle is restricted due to the seat belt, ensuring that the rotary cover can rotate independently relative to the female buckle, which is convenient for the user to unlock the magnetic buckle.

[0009] The present utility model is further configured as: The male buckle further includes a third male buckle and a fourth male buckle. The third male buckle is located between the first male buckle and the female buckle, and the fourth male buckle is located between the second male buckle and the female buckle. A first magnet is provided on the first male buckle, and a second magnet is provided on the second male buckle. A third magnet is provided on the third male buckle, and a fourth magnet is provided on the fourth male buckle. The first magnet and the third magnet are adsorbed and arranged, and the second magnet and the fourth magnet are adsorbed and arranged.

[0010] By adopting the above technical solution, it can adapt to the application of a five-point seat belt. The first magnet, the second magnet, the third magnet, and the fourth magnet provided on the male buckle can guide the split male buckles to adsorb together.

[0011] The present utility model is further configured as follows: On the first male buckle, there are also provided a pair of fifth magnets located at the edge position. On the second male buckle, there are provided a pair of sixth magnets located at the edge position. On the rotary cover, there are provided a seventh magnet and an eighth magnet. The fifth magnet and the seventh magnet attract each other. The sixth magnet and the eighth magnet attract each other. On the rotary cover, there are also provided a ninth magnet and a tenth magnet. After the ninth magnet rotates, it corresponds to the fifth magnet and the ninth magnet has the same magnetic property as the fifth magnet. After the tenth magnet rotates, it corresponds to the sixth magnet and the tenth magnet has the same magnetic property as the sixth magnet.

[0012] By adopting the above technical solution, the fifth magnet and the sixth magnet can attract the seventh magnet and the eighth magnet, realizing the direct attraction between the male buckle and the female buckle, facilitating the combination and fixation of the male buckle and the female buckle. Combining the ninth magnet and the tenth magnet provided on the rotary cover, the split male buckle can achieve the function of popping out after rotation, facilitating one-handed operation and popping out.

[0013] The present utility model is further configured as follows: On the female buckle, there are provided an eleventh magnet and a twelfth magnet for positioning the rotary cover. The eleventh magnet has the opposite magnetic property to the ninth magnet. The twelfth magnet has the opposite magnetic property to the tenth magnet. On the female buckle, there is also provided a thirteenth magnet having the same magnetic property as the sixth magnet. After the rotary cover rotates, the thirteenth magnet is opposite to the sixth magnet.

[0014] By adopting the above technical solution, the eleventh magnet and the twelfth magnet provided on the female buckle attract the ninth magnet and the tenth magnet, ensuring that the initial position and the position during fastening of the rotary cover do not change. After rotation, the eleventh magnet, the twelfth magnet, and the thirteenth magnet generate a repulsive force with the corresponding male buckle, causing the male buckle to pop out on the female buckle.

[0015] The present utility model is further configured as follows: The male buckle is provided with a central channel for the rotary column to penetrate. The central channel is concentrically arranged with the rotary column. The central channel extends a limiting ring toward the side facing the female buckle. The third male buckle and the fourth male buckle are provided with a first limiting edge corresponding to the limiting ring. The limiting ring fits with the first limiting edge.

[0016] By adopting the above technical solution, the limiting ring extending from the central channel toward the side of the female buckle forms a space for accommodating the third male buckle and the fourth male buckle between the first male buckle, the second male buckle and the female buckle. The first limiting edge fits with the limiting ring to form a limit, ensuring the integrity of the magnetic buckle.

[0017] The present utility model is further configured such that: there are two clamping posts, located at the splicing position of the first male buckle and the second male buckle, and oppositely arranged on both sides of the central channel, and the third male buckle and the fourth male buckle are provided with second limiting edges corresponding to the clamping posts.

[0018] By adopting the above technical solution, the paired clamping posts can limit the rotation between the male buckle and the female buckle, ensuring the reliability of the magnetic buckle. The first limiting edge and the limiting ring, and the second limiting edge and the clamping posts ensure the rotation of the third male buckle and the fourth male buckle, further improving its reliability.

[0019] The present utility model is further configured such that: the female buckle includes a first belt-passing portion, the male buckle is provided with a second belt-passing portion, the first belt-passing portion and the second belt-passing portion are spliced to form a circular structure, and the locking mechanism is located at the center of the first belt-passing portion and the second belt-passing portion.

[0020] By adopting the above technical solution, the first belt-passing portion and the second belt-passing portion are spliced to form an annular structure, which can reduce the probability of the locking mechanism being collided and extend its service life.

[0021] The present utility model is further configured such that: a guiding groove is provided on the female buckle, the guiding groove is arranged in an annular structure, and a guiding block inserted into the guiding groove is provided on the rotary cover.

[0022] By adopting the above technical solution, the guiding groove arranged in an annular structure can limit the rotation track of the rotary cover and limit the rotation formation during use.

[0023] The present utility model is further configured such that: an abutting block is provided on the female buckle, the elastic abutting portion is provided with a first inclined surface in contact with the abutting block, and after the first inclined surface contacts the abutting block, the elastic abutting portion contracts towards the central channel side.

[0024] By adopting the above technical solution, the arrangement of the abutting block and the inclined surface causes the elastic abutting portion to contract when the rotary cover rotates and the abutting block contacts the inclined surface, thereby realizing unlocking. After releasing the rotary cover, due to the elasticity between the inclined surface and the abutting block, the locking tongue resets.

[0025] The present utility model is further configured such that: the elastic abutting portion is provided with a second inclined surface, the second inclined surface is arranged towards the clamping post side, and a chamfer corresponding to the second inclined surface is provided on the clamping post.

[0026] By adopting the above technical solution, the arrangement of the second inclined surface and the chamfer can directly snap the elastic abutting portion into the card slot, which is convenient for use.

[0027] The present utility model is further configured as follows: A limiting step coaxial with the rotating column extends from the female buckle, the limiting step abuts against the connecting ring, a limiting boss also extends radially along the rotating column at the limiting step, the limiting boss is correspondingly arranged with the elastic abutting part, and when the locking tongue is in an uncompressed state, the limiting boss abuts against the elastic abutting part.

[0028] By adopting the above technical solution, the limiting step can ensure the position of the whole locking tongue on the rotating column, especially to prevent the locking tongue from sliding on the rotating column when pressing the female buckle for clamping. The limiting boss can limit the axial movement of the elastic abutting part along the rotating column, so that the elastic abutting part contracts inward when being squeezed by the clamping post, ensuring its normal use.

[0029] The present utility model is further configured as follows: The rotating column is hollow, the end cover includes an elastic buckle, and an opening for the elastic buckle to be embedded is formed on the rotating column.

[0030] By adopting the above technical solution, the elastic buckle makes the locking mechanism and the female buckle form a detachable whole. The hollow-structured rotating column simplifies the connection structure between the female buckle and the locking mechanism, reducing the thickness of the magnetic buckle.

[0031] In summary, the present utility model has the following effects:

[0032] 1. The unlocking of the buckle is realized by rotation, which is more convenient in actual use;

[0033] 2. During locking, the operator only needs to press the female buckle and the male buckle to achieve automatic locking, which is convenient to use;

[0034] 3. The male buckle is guided to be spliced on the female buckle by the way of magnet guidance. The magnet groups on the rotary cover and the female buckle can eject the male buckle when the rotary cover rotates, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art.

[0036] Figure 1 It is a schematic diagram of the overall structure of the buckle;

[0037] Figure 2 It is a schematic diagram of the overall structure of the male buckle;

[0038] Figure 3 It is a schematic diagram of the internal structure of the female buckle and the rotary cover;

[0039] Figure 4 It is a schematic diagram of the structure of the female buckle and the locking tongue;

[0040] Figure 5 Schematic diagram of the overall structure of the screw cap

[0041] Figure 6 Schematic diagram of the screw cap and the locking mechanism

[0042] Figure 7 Schematic diagram of the splicing state of the male buckle and the female buckle

[0043] Figure 8 Schematic diagram of the structure of the locking mechanism

[0044] In the figure: 1. Female buckle; 2. Male buckle; 21. First male buckle; 22. Second male buckle; 23. Third male buckle; 24. Fourth male buckle; 25. Card column; 251. First card column; 252. Second card column; 253. Card slot; 254. Chamfer; 26. Central channel; 261. Limit ring; 262. First limit edge; 263. Second limit edge; 3. Locking mechanism; 31. Screw cap; 311. Rotating column; 312. End cap; 313. Connecting platform; 314. Bayonet; 32. Lock tongue; 321. Connecting ring; 322. Elastic abutting part; 323. Bayonet; 4. Magnet assembly; 41. First magnet; 42. Second magnet; 43. Third magnet; 44. Fourth magnet; 45. Fifth magnet; 46. Sixth magnet; 47. Seventh magnet; 48. Eighth magnet; 49. Ninth magnet; 410. Tenth magnet; 411. Eleventh magnet; 412. Twelfth magnet; 413. Thirteenth magnet; 5. Belt-passing part; 51. First belt-passing part; 52. Second belt-passing part; 6. Guide groove; 7. Guide block; 8. Abutting block; 9. First inclined surface; 10. Second inclined surface; 11. Limit step; 12. Limit boss; 13. Elastic buckle; 14. Opening Specific embodiments

[0045] The following further describes the present utility model in detail with reference to the accompanying drawings

[0046] As shown in the figure, a snap fastener includes a male snap and a female snap. A locking mechanism is provided on the female snap. The male snap includes a first male snap, a second male snap, and a clamping post that are separately arranged. A first clamping post is provided on the first male snap, and a second clamping post is provided on the second male snap. The locking mechanism includes a rotary cover and a locking tongue. A rotating post that penetrates the locking tongue extends from the center of the rotary cover. An end cover for clamping the rotating post is provided on the female snap. A connecting platform for rotating the locking tongue extends radially from the rotating post. The locking tongue includes a connecting ring sleeved on the rotating post and an elastic abutting portion. A bayonet for clamping with the connecting platform is radially provided on the connecting ring. The clamping post includes a first clamping post provided on the first male snap and a second clamping post provided on the second male snap. The first clamping post and the second clamping post are butted to form an integral body. A clamping groove is provided on the clamping post. The clamping groove is correspondingly arranged with the elastic abutting portion. After the locking tongue rotates, the elastic abutting portion contracts along the radial direction of the connecting ring, and the elastic abutting portion disengages from the clamping groove after contraction.

[0047] To facilitate the user to use the male snap with a five-point setting, the male snap further includes a third male snap and a fourth male snap. The third male snap is located between the first male snap and the female snap, and the fourth male snap is located between the second male snap and the female snap. A first magnet is provided on the first male snap, and a second magnet is provided on the second male snap. A third magnet is provided on the third male snap, and a fourth magnet is provided on the fourth male snap. The first magnet and the third magnet are adsorbed and arranged, and the second magnet and the fourth magnet are adsorbed and arranged.

[0048] To enable the male snap to be ejected when the rotary cover rotates, a pair of fifth magnets are further provided on the first male snap at the edge position, and a pair of sixth magnets are provided on the second male snap at the edge position. A seventh magnet and an eighth magnet are provided on the rotary cover. The fifth magnet and the seventh magnet are adsorbed to each other, and the sixth magnet and the eighth magnet are adsorbed to each other. A ninth magnet and a tenth magnet are further provided on the rotary cover. After the ninth magnet rotates, it corresponds to the fifth magnet and has the same magnetic property as the fifth magnet. After the tenth magnet rotates, it corresponds to the sixth magnet and has the same magnetic property as the sixth magnet. An eleventh magnet and a twelfth magnet for positioning the rotary cover are provided on the female snap. The eleventh magnet has the opposite magnetic property to the ninth magnet, and the twelfth magnet has the opposite magnetic property to the tenth magnet.

[0049] The male snap is provided with a central channel for the rotating post to penetrate. The central channel is concentric with the rotating post. A limiting ring extends from one side of the central channel facing the female snap. The third male snap and the fourth male snap are provided with a first limiting edge corresponding to the limiting ring. The limiting ring fits with the first limiting edge.

[0050] To further improve the stability and reliability during locking, two clamping posts are provided. They are located at the splicing position of the first male buckle and the second male buckle, and are oppositely arranged on both sides of the central channel. The third male buckle and the fourth male buckle are provided with second limiting edges corresponding to the clamping posts.

[0051] To ensure the stability of the locking mechanism during use, the female buckle includes a first belt-passing part, and the male buckle is provided with a second belt-passing part. The first belt-passing part and the second belt-passing part are spliced to form a circular structure, and the locking mechanism is located at the center of the first belt-passing part and the second belt-passing part.

[0052] To limit the rotation stroke of the rotary cap on the female buckle and prevent the locking tongue from exceeding its elastic deformation range, a guiding groove is provided on the female buckle. The guiding groove is arranged in an annular structure, and a guiding block inserted into the guiding groove is provided on the rotary cap.

[0053] To facilitate the locking between the male buckle and the female buckle, a butting block is provided on the female buckle. The elastic butting part is provided with a first inclined surface in contact with the butting block. After the first inclined surface contacts the butting block, the elastic butting part contracts towards the central channel side. The elastic butting part is provided with a second inclined surface arranged towards the clamping post side, and a chamfer corresponding to the second inclined surface is provided on the clamping post. A limiting step coaxial with the rotating column extends from the female buckle, and the limiting step abuts against the connecting ring. A limiting boss also extends radially along the rotating column at the limiting step, and the limiting boss is correspondingly arranged with the elastic butting part. When the locking tongue is in an uncompressed state, the limiting boss abuts against the elastic butting part.

[0054] To further streamline its structure, the rotating column is hollow, and the end cover includes an elastic buckle, and an opening for the elastic buckle to be clamped into is formed on the rotating column.

[0055] It should be noted that for those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A buckle, comprising a male buckle and a female buckle, characterized in that, The female buckle is provided with a locking mechanism. The male buckle includes a first male buckle, a second male buckle, and a clamping post that are separately arranged. The locking mechanism includes a rotating cover and a locking tongue. A rotating post that penetrates the locking tongue extends from the center of the rotating cover. An end cover for clamping the rotating post is arranged on the female buckle. A connecting platform for rotating the locking tongue extends radially from the rotating post. The locking tongue includes a connecting ring sleeved on the rotating post and an elastic abutting portion. A bayonet for clamping with the connecting platform is arranged radially on the connecting ring. The clamping post includes a first clamping post arranged on the first male buckle and a second clamping post arranged on the second male buckle. The first clamping post and the second clamping post are butted to form an integral body. A clamping groove is arranged on the clamping post, and the clamping groove is correspondingly arranged with the elastic abutting portion. After the locking tongue rotates, the elastic abutting portion contracts along the radial direction of the connecting ring, and the elastic abutting portion disengages from the clamping groove after contraction.

2. The buckle according to claim 1, characterized in that, The male buckle further includes a third male buckle and a fourth male buckle. The third male buckle is located between the first male buckle and the female buckle, and the fourth male buckle is located between the second male buckle and the female buckle. A first magnet is arranged on the first male buckle, and a second magnet is arranged on the second male buckle. A third magnet is arranged on the third male buckle, and a fourth magnet is arranged on the fourth male buckle. The first magnet and the third magnet are adsorbed and arranged, and the second magnet and the fourth magnet are adsorbed and arranged.

3. A buckle according to claim 2, characterized in that, Two pairs of fifth magnets are further arranged on the first male buckle at the edge position, and two pairs of sixth magnets are arranged on the second male buckle at the edge position. A seventh magnet and an eighth magnet are arranged on the rotating cover. The fifth magnet and the seventh magnet are mutually adsorbed, and the sixth magnet and the eighth magnet are mutually adsorbed. A ninth magnet and a tenth magnet are further arranged on the rotating cover. After the ninth magnet rotates, it corresponds to the fifth magnet and has the same magnetic property as the fifth magnet. After the tenth magnet rotates, it corresponds to the sixth magnet and has the same magnetic property as the sixth magnet.

4. A buckle according to claim 3, characterized in that, An eleventh magnet and a twelfth magnet for positioning the rotating cover are arranged on the female buckle. The eleventh magnet has the opposite magnetic property to the ninth magnet, and the twelfth magnet has the opposite magnetic property to the tenth magnet. A thirteenth magnet with the same magnetic property as the sixth magnet is further arranged on the female buckle. After the rotating cover rotates, the thirteenth magnet is opposite to the sixth magnet.

5. A buckle according to any one of claims 2 to 4, characterized in that, The male buckle is provided with a central channel for the rotating post to penetrate. The central channel is concentric with the rotating post. A limiting ring extends from the side of the central channel facing the female buckle. The third male buckle and the fourth male buckle are provided with first limiting edges corresponding to the limiting ring, and the limiting ring is attached to the first limiting edges.

6. The buckle according to claim 5, characterized in that, There are two clamping posts, which are located at the splicing position of the first male buckle and the second male buckle and are relatively arranged on both sides of the central channel. The third male buckle and the fourth male buckle are provided with second limiting edges corresponding to the clamping posts.

7. A buckle according to claim 1, characterized in that The female buckle includes a first belt-passing part, the male buckle is provided with a second belt-passing part, the first belt-passing part and the second belt-passing part are spliced to form a circular structure, and the locking mechanism is located at the centers of the first belt-passing part and the second belt-passing part.

8. A buckle according to claim 5, characterized in that, A guiding groove is arranged on the female buckle, the guiding groove is arranged in an annular structure, and a guiding block inserted into the guiding groove is arranged on the rotary cover.

9. A buckle according to claim 8, wherein, An abutting block is arranged on the female buckle, the elastic abutting part is provided with a first inclined surface in contact with the abutting block, and after the first inclined surface contacts the abutting block, the elastic abutting part contracts towards the central channel side.

10. A buckle according to claim 9, characterized in that, The elastic abutting part is provided with a second inclined surface arranged towards the clamping column side, and a chamfer corresponding to the second inclined surface is arranged on the clamping column.

11. A snap fastener according to claim 10, characterized in that, A limiting step coaxial with the rotating column extends from the female buckle, the limiting step abuts against the connecting ring, a limiting boss also extends radially along the rotating column at the limiting step, the limiting boss is arranged corresponding to the elastic abutting part, and the limiting boss abuts against the elastic abutting part when the locking tongue is in an uncompressed state.

12. A snap fastener according to claim 1, characterized in that, The rotating column is hollow, the end cover includes an elastic buckle, and an opening for the elastic buckle to be clamped into is formed on the rotating column.

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