CN217898385U - Torsional spring and buckle using same - Google Patents

Abstract

The utility model provides a torsion spring and a buckle using the torsion spring, the torsion spring comprises a first force arm, a second force arm and a ring body, the first force arm is connected with one end of the ring body, the second force arm is connected with the other end of the ring body, the first force arm comprises a butt joint part and an avoiding part; one end of the avoiding part is connected with one end of the ring body, and the other end of the avoiding part is connected with the abutting part; the avoidance part is obliquely arranged towards the other end of the ring body, and one end of the avoidance part close to the abutting part is close to the ring body; the avoiding part is arranged, so that the abutting part is connected with one end of the ring body in a staggered manner; one end of the ring body and the abutting part form an avoidance area along the extending length direction of one end of the ring body close to the first force arm; the avoidance area is used for avoiding the limiting part of the buckle; when the torsion spring is arranged in the buckle for use, the first force arm can be contacted with the second limiting piece without deforming along the axial direction of the torsion spring; when the buckle is opened and closed, the first force arm cannot be dislocated with the second limiting piece of the buckle.

Description

Torsional spring and buckle using same

Technical Field

The utility model relates to a torsional spring technical field, concretely relates to torsional spring and use buckle of torsional spring.

Background

The torsion spring is arranged in the buckle for use; the locking of the buckle is realized by the elasticity of the torsion spring; overcoming the elasticity of the torsion spring to realize the opening of the buckle; the existing buckle cannot limit the torsion spring; therefore, the torsion spring is easy to fall off from the buckle. Meanwhile, the output end of the existing torsion spring coil body is linearly connected with the torsion arm; when the existing torsion spring is installed in a buckle with a limiting structure for use, the torsion spring is easy to dislocate from the limiting structure, and further the limiting failure of the torsion spring is caused.

As shown with reference to FIGS. 1-4; the outer leading-out end of the existing torsion spring is linearly connected with the spring coil part, and the arm of force of the torsion spring is axially limited by a second limiting part 1-115 on the buckle 1-1. The torsion arm of the torsion spring installed in the buckle will incline towards the direction far away from the ring body along the length direction, as shown in fig. 3, and when the second limiting members 1-115 axially limit the moment arm of the torsion spring; the acting force of the second limiting parts 1-115 on the force arm of the torsion spring can cause the force arm of the torsion spring to deform along the axial direction of the torsion spring and drive the torsion spring to compress along the axial direction; as shown in fig. 4, when the force arm of the torsion spring moves along the circumferential direction of the torsion spring coil body to open the buckle, the force arm of the torsion spring separated from the second limiting member will be reset along the axial direction under the elastic restoring force of the torsion spring due to the excessive pressure between the second limiting member 1-115 and the force arm of the torsion spring, so that the force arm of the torsion spring is dislocated from the second limiting member; meanwhile, when the torsion spring is compressed along the axial direction, adjacent spring coils of the torsion spring coil body are mutually pressed, so that the force arm of the torsion spring is prevented from moving along the circumferential direction of the spring coil body; thus, the opening and closing of the buckle can be blocked.

Disclosure of Invention

The utility model provides a torsion spring and a buckle using the same, wherein the torsion spring can not deform along the axial direction; the force arm and the limiting piece are matched well and cannot be dislocated.

In order to achieve the above purpose, the technical scheme of the utility model is that: a torsion spring comprises a first force arm, a second force arm and a ring body, wherein the first force arm is connected with one end of the ring body, the second force arm is connected with the other end of the ring body, and the first force arm comprises a butting part and an avoiding part; one end of the avoiding part is connected with one end of the ring body, and the other end of the avoiding part is connected with the abutting part; the abutting part extends outwards along the radial direction of the ring body, and the abutting part, the avoiding part and one end of the ring body form an avoiding space extending towards the other end of the ring body.

In the arrangement, the avoidance part is connected with the ring body and the abutting part, so that the abutting part is connected with one end of the ring body in a staggered manner; so that one end of the ring body and the abutting part form an avoiding area; avoiding the second limiting part on the fastener through the avoiding region; when the torsion spring is arranged in the buckle for use, the first force arm can be contacted with the second limiting piece without deforming along the axial direction of the torsion spring; the second limiting piece can limit the axial direction of the torsion spring, simultaneously prevent the first force arm from deforming along the axial direction of the torsion spring and drive the torsion spring to compress along the axial direction; when the buckle is opened and closed, the first force arm cannot be dislocated with the second limiting piece of the buckle. Meanwhile, the second limiting part on the buckle is used for axially limiting the torsion spring; the torsion spring can not be compressed along the axial direction, so that adjacent spring coils of the torsion spring coil body can not interfere with each other, and the buckle can be conveniently opened and closed.

Furthermore, one end of the avoiding part is arranged along one end of the ring body in an outward and upward inclined mode, and the other end of the avoiding part is arranged in an inclined mode with the abutting part.

Above setting, dodge the portion and all incline to set up with the one end of circle body and butt portion, dodge the portion and produce parallel component force and perpendicular component force to butt portion to make butt portion can act on with the second locating part more reliably.

Further, the abutting part is arranged perpendicular to the axial direction of the ring body; one end of the abutting part close to the avoiding part is provided with an inclined plane matched with the avoiding part.

The arrangement is that the inclined plane is matched with the avoiding part; the length extending direction of the contact part is changed to ensure that the contact part is perpendicular to the axial direction of the ring body

Further, the method comprises the following steps of; the coil body comprises more than two coils.

Further, the method comprises the following steps of; the length of the first force arm is greater than the length of the second force arm.

The utility model also provides a buckle using the torsion spring; the torsion spring fixing device comprises a main body, wherein a first side wall, a first limiting piece and a bottom plate are arranged at a first end of the main body, one side of the first side wall is connected with the bottom plate and is arranged at the top end of the bottom plate, one side of the first limiting piece is connected with the bottom plate and is arranged at the bottom end of the bottom plate, a mounting groove is formed among the first side wall, the first limiting piece and the bottom plate, and the mounting groove is used for accommodating a torsion spring and radially limiting the torsion spring; one side, far away from the bottom plate, of the first side wall extends to the first limiting part to form a limiting part, the limiting part is used for limiting the axial direction of a torsion spring, the torsion spring comprises a first force arm, a second force arm and a ring body, the first force arm is connected with one end of the ring body, the second force arm is connected with the other end of the ring body, and the first force arm comprises a butting part and an avoiding part; one end of the avoiding part is connected with one end of the ring body, and the other end of the avoiding part is connected with the abutting part; the abutting part extends outwards along the radial direction of the ring body, and the abutting part, the avoiding part and one end of the ring body form an avoiding space extending towards the other end of the ring body.

Above setting, through torsional spring and first lateral wall and the contact of first locating part, it is radial spacing to the torsional spring to realize the mounting groove, avoids the torsional spring to take place radial movement, makes the torsional spring installation stable. When the torsion spring is abutted to the first side wall and the first limiting piece, the torsion spring is in a stressed and compressed state, the elasticity of the torsion spring can be converted into power for driving the torsion spring to move, the torsion spring is easy to pop out of the mounting groove, the limitation piece is arranged for axially limiting the torsion spring, the torsion spring is prevented from axially moving, and the stability of the torsion spring during mounting is further improved; therefore, the assembly on the buckle is more stable and efficient, the generation of defective products is reduced, and the cost is saved; meanwhile, the torsion spring arranged in the mounting groove is axially limited and radially limited, and when the buckle is used, the position of the torsion spring is not easy to change, so that the torsion spring can be stabilized in the buckle.

Further, the method comprises the following steps of; the main body further comprises a second end, and the buckle further comprises a buckling piece and a bolt; one end of the buckling piece is rotatably connected with the first end; the torsion spring is arranged in the mounting groove, a second force arm of the torsion spring is abutted with the first limiting piece, the first force arm is abutted with the first side wall, extends out of the mounting groove and is connected with the buckling piece, and the other end of the buckling piece is abutted with the second end under the elastic action of the torsion spring; the bolt passes through the through hole and the ring body of the torsion spring to be connected with the buckling piece.

Above setting, through setting up torsional spring connection buckling piece and main part, buckling piece and second end butt under the elasticity effect of torsional spring realize the locking of fastener like this, overcome the elasticity of torsional spring when holding the buckling piece and make buckling piece and second end separation, realize opening of fastener like this.

Further, the method comprises the following steps of; the first limiting piece is a second side wall, and the first limiting piece and the first side wall are arranged oppositely.

Further, the method comprises the following steps of; the bottom plate is provided with a through hole, one side of the bottom plate is provided with a top block, and the top block is used for limiting the torsion spring along the vertical direction of the limiting direction of the mounting groove when the ring body of the torsion spring is aligned with the through hole.

Above setting, during the equipment fastener, the circle body of torsional spring aligns with the through-hole when the kicking block is touched to the torsional spring, is convenient for assemble like this, restricts the removal of torsional spring through the kicking block, simple structure, and the kicking block further promotes the stability of torsional spring installation to the torsional spring contact simultaneously.

Drawings

Fig. 1 is a schematic view of a buckle using a conventional torsion spring.

Fig. 2 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is an enlarged view of a in fig. 2.

Fig. 4 is a schematic diagram illustrating the dislocation of the arm of the torsion spring and the position-limiting member.

Fig. 5 is a schematic perspective view of the middle torsion spring of the present invention.

Fig. 6 is a front view of the torsion spring of the present invention.

Fig. 7 is a cross-sectional view of B-B in fig. 6.

Fig. 8 is a sectional view of the present invention.

Fig. 9 is an enlarged view of b in fig. 8.

Fig. 10 is a schematic view of the present invention.

Fig. 11 is an exploded view of the buckle according to the present invention.

Fig. 12 is an enlarged view of c in fig. 11.

Fig. 13 is a sectional view of the buckle according to another direction of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 5-13; a buckle using a torsion spring; comprises a main body 1, a buckling piece 2, a torsion spring 3 and a bolt 4; the main body 1 includes a first end 11 and a second end 12, one end of the fastener 2 is rotatably connected to the first end 11, the first end 11 of the main body 1 is provided with a first sidewall 111, a first limiting member 112 and a bottom plate 113, in this embodiment, the first limiting member 112 is a second sidewall. The second side wall is disposed opposite to the first side edge 111. One side of the first sidewall 111 is connected with the bottom plate 113 and is disposed at the top end of the bottom plate 113, one side of the first limiting member 112 is connected with the bottom plate 113 and is disposed at the bottom end of the bottom plate 113, an installation groove 114 is formed among the first sidewall 111, the first limiting member 112 and the bottom plate 113, the torsion spring 3 is disposed in the installation groove 114, and the installation groove 114 radially limits the torsion spring 3; referring to fig. 12, the installation groove 114 limits the torsion spring 3 in the K direction. A second limiting member 115 extends from a side of the first sidewall 111 away from the bottom plate 113 to the first limiting member 112, and the second limiting member 115 axially limits the torsion spring 3.

The bottom plate 113 is provided with a through hole 1131, one side of the bottom plate 113 is provided with a top block 116, and the top block 116 is used for limiting the torsion spring 3 along the vertical direction of the limiting direction of the installation groove 114 when the coil body 31 of the torsion spring 3 is aligned with the through hole 1131. Referring to fig. 11, the top block 116 limits the torsion spring 3 in the L direction. In the present embodiment, the top block 116 is connected to the first sidewall 111 and the first limiting member 112. The strength of the first end 11 of the main body 1 is enhanced by the top block 116 connecting the first sidewall 111 and the first stopper 112.

As shown in fig. 5-8; the torsion spring comprises a coil body 31, a first force arm 32 and a second force arm 33, in this embodiment the coil body 31 comprises more than two coils. The first force arm 32 is connected with one end of the ring body 31, the second force arm 33 is connected with the other end of the ring body 31, and the first force arm 32 comprises a contact part 321 and a avoiding part 322; one end of the escape portion 322 is connected to one end of the ring body 31, and the other end of the escape portion 322 is connected to the contact portion 321; the contact portion 321 is extended outward along the radial direction of the ring body 31, and the contact portion 321, the relief portion 322 and one end of the ring body 31 form a relief space extending toward the other end of the ring body 31; one end of the escape portion 322 is inclined outward and upward along one end of the ring body 31, and the other end of the escape portion 322 is inclined with respect to the contact portion 321.

The second arm 33 of the torsion spring abuts against the first limiting member 112, the first arm 32 abuts against the first sidewall 11, extends out of the mounting groove 114 and is connected to the fastener 2, and the other end of the fastener 2 abuts against the second end 12 under the elastic force of the torsion spring 3; the bolt 4 passes through the through hole 1131 and the coil body 31 of the torsion spring to be connected with the fastener 2. The locking of the buckle is realized under the elastic force of the torsion spring 3, and when the buckling piece 2 is pressed, the buckling piece 2 is separated from the second end 12 by overcoming the elastic force of the torsion spring 3, so that the opening of the buckle is realized.

Through the contact of the torsion spring 3 with the first side wall 111 and the first limiting member 112, the installation groove 114 is used for radially limiting the torsion spring 3, so that the torsion spring 3 is prevented from radially moving, and the torsion spring 3 is stably installed. When the torsion spring 3 abuts against the first side wall 111 and the first limiting part 112, the torsion spring 3 is in a stressed and compressed state, the elasticity of the torsion spring 3 is converted into power for driving the torsion spring 3 to move, the torsion spring 3 is easy to pop out of the mounting groove 114, the torsion spring 3 is axially limited by arranging the second limiting part 115, the torsion spring 3 is prevented from axially moving, and the stability of the torsion spring 3 during mounting is further improved; therefore, the buckle is more stable and stable to assemble and has higher efficiency, the generation of defective products is reduced, and the cost is saved; meanwhile, the torsion spring 3 arranged in the mounting groove 114 is axially limited and radially limited, so that the position of the torsion spring 3 is not easy to change when the buckle is used, and the torsion spring can be further stabilized in the buckle. In this embodiment, referring also to FIG. 11, a recess 22 is provided in the fastener 2, and the first force arm 32 extends out of the mounting slot 114 and is received in the recess 22. By providing the recess 22, the first force arm 32 will not disengage from the fastener 2, and the torsion spring 3 is stably coupled to the fastener 2.

When assembling the buckle, torsion spring 3 touches top piece 116 and the circle body 31 of torsion spring 3 aligns with through-hole 1131, is convenient for assemble like this, restricts torsion spring 3's removal through top piece 116, simple structure, and top piece 116 further promotes torsion spring 3's stability of installing to the contact of torsion spring 3 simultaneously.

As shown in fig. 5, 7 and 9; the contact portion 321 is connected to the ring body 31 and the contact portion 321 by providing the relief portion 322, so that the contact portion 321 is connected to one end of the ring body 31 in a staggered manner; so that one end of the ring body 31 and the abutting portion 321 form an escape region 323; the second limiting member 112 on the fastener is avoided through the avoiding region 323; when the torsion spring 3 is installed in the buckle for use, the first force arm 32 can contact with the second limiting member 112 without being deformed along the axial direction of the torsion spring 3; thus, the second position-limiting member 112 can axially limit the torsion spring 3 while preventing the first force arm 32 from deforming along the axial direction of the torsion spring 3 and driving the torsion spring 3 to axially compress. When the buckle is opened and closed, the first force arm 32 will not be dislocated from the second limiting part of the buckle. Meanwhile, when the second limiting part 112 on the buckle axially limits the torsion spring 3; the torsion spring 3 can not be compressed along the axial direction, so that adjacent coils of the torsion spring coil body can not interfere with each other, and the buckle can be conveniently opened and closed.

In this embodiment, the length of the first force arm 32 is greater than the length of the second force arm 33; the engagement with the fastener element 2 is facilitated by providing the first force arm 32 with a greater length.

In the present embodiment, an inclined surface 324 that engages with the relief portion 322 is provided at one end of the contact portion 321 near the relief portion 322. The abutting portion 321 is provided perpendicular to the axial direction of the ring body 31. By the inclined surface 324 engaging with the escape portion 322; changing the length extension direction of the contact part 321 to make the contact part 321 perpendicular to the axial direction of the ring body 31; and the abutting portion 321 and the stopper have a good fitting effect.

Claims (9)

1. The utility model provides a torsional spring, includes the first arm of force, the second arm of force and circle body, and the first arm of force is connected with the one end of circle body, and the second arm of force is connected its characterized in that with the other end of circle body: the first force arm comprises an abutting part and an avoiding part; one end of the avoiding part is connected with one end of the ring body, and the other end of the avoiding part is connected with the abutting part; the abutting part extends outwards along the radial direction of the ring body, and the abutting part, the avoiding part and one end of the ring body form an avoiding space extending towards the other end of the ring body.

2. A torsion spring according to claim 1, wherein: one end of the avoiding part is arranged along one end of the ring body in an outward and upward inclined mode, and the other end of the avoiding part is arranged in an inclined mode with the abutting part.

3. A torsion spring according to claim 1, wherein: the abutting part is arranged perpendicular to the axial direction of the ring body; one end of the abutting part close to the avoiding part is provided with an inclined plane matched with the avoiding part.

4. A torsion spring according to claim 1, wherein: the coil body comprises more than two coils.

5. A torsion spring according to claim 1, wherein: the length of the first force arm is greater than the length of the second force arm.

6. The utility model provides an use buckle of torsional spring, includes the main part, and the main part includes first end, its characterized in that: a first side wall, a first limiting piece and a bottom plate are arranged at the first end of the main body, one side of the first side wall is connected with the bottom plate and is arranged at the top end of the bottom plate, one side of the first limiting piece is connected with the bottom plate and is arranged at the bottom end of the bottom plate, and a mounting groove is formed among the first side wall, the first limiting piece and the bottom plate and is used for accommodating a torsion spring and radially limiting the torsion spring; one side of the first side wall, which is far away from the bottom plate, extends to the first limiting piece to form a limiting piece, and the limiting piece is used for axially limiting the torsion spring;

the torsion spring comprises a first force arm, a second force arm and a ring body, the first force arm is connected with one end of the ring body, the second force arm is connected with the other end of the ring body, and the first force arm comprises an abutting part and an avoiding part; one end of the avoiding part is connected with the ring body, and the other end of the avoiding part is connected with the abutting part; the abutting part extends outwards along the radial direction of the ring body, and the abutting part, the avoiding part and one end of the ring body form an avoiding space extending towards the other end of the ring body.

7. The buckle of claim 6, wherein: the main body further comprises a second end, and the buckle further comprises a buckling piece and a bolt; one end of the buckling piece is rotatably connected with the first end; the torsion spring is arranged in the mounting groove, a second force arm of the torsion spring is abutted with the first limiting piece, the first force arm is abutted with the first side wall and extends out of the mounting groove and is connected with the buckling piece, and the other end of the buckling piece is abutted with the second end under the elastic action of the torsion spring; the bolt passes through the through hole and the ring body of the torsion spring to be connected with the buckling piece.

8. A buckle using torsion spring according to claim 6, wherein: the first limiting piece is a second side wall, and the first limiting piece and the first side wall are arranged oppositely.

9. A buckle using torsion spring according to claim 6, wherein: the bottom plate is provided with a through hole, one side of the bottom plate is provided with a top block, and the top block is used for limiting the torsion spring along the vertical direction of the limiting direction of the mounting groove when the ring body of the torsion spring is aligned with the through hole.

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