CN210034250U - Torsional spring and mounting structure thereof - Google Patents

Abstract

The application discloses torsional spring and mounting structure thereof, the torsional spring includes the spring body and follows first arm and second arm that the spring body extends, the first end of first arm is provided with and is used for the structure is snatched by the torsional spring, snatch the structure and be cyclic annular or the form of buckling. The mounting structure comprises a first mounting part, a second mounting part and the torsion spring mounted on the first mounting part and the second mounting part. According to the technical scheme of this application, can make things convenient for the loading and unloading of torsional spring and improve the reliability of torsional spring installation.

Description

Torsional spring and mounting structure thereof

Technical Field

The application belongs to the technical field of elastic elements, and particularly relates to a torsion spring and a mounting structure thereof.

Background

Torsion springs are widely used mechanical parts, typically for storing potential energy under the action of torque or converting the stored potential energy into rotational mechanical energy. Under the general condition, at least one end of the torsion spring is fixedly installed through a fastener and the like during installation, and the installation and the disassembly are difficult. In some cases, if the two ends of the torsion spring are not fixedly installed through the fasteners but installed through the clamping grooves, the problem of disengagement is easily caused.

Therefore, how to realize the convenience of disassembly and assembly and improve the reliability of the installation of the torsion spring becomes a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a solution for a torsion spring and a mounting structure thereof, so as to enable the torsion spring to be conveniently mounted and dismounted, and the torsion spring is not easy to fall off after the mounting is completed, thereby being reliably mounted.

According to the application, a torsional spring is proposed, the torsional spring includes the spring body and follows first arm and second arm that the spring body extends, the first end of first arm is provided with and is used for the structure is snatched by the torsional spring, snatch the structure for cyclic annular or structure of buckling.

Preferably, the grasped structure is hook-shaped.

Preferably, the first arm includes a first extension portion connecting the first end portion and the spring body, the first extension portion extending outward in a tangential direction of the spring body, the first end portion extending in an axial direction of the spring body, and the grasped structure is provided at a tip of the first end portion.

Preferably, the second arm includes a second extending portion connected to the spring body and a second end portion connected to the second extending portion, the second extending portion extending outward in a tangential direction of the spring body, the second end portion extending in an axial direction of the spring body and a tip of the second end portion being formed as a bent portion.

Preferably, the first end portion and the second end portion extend toward the same side of the spring body in the axial direction.

The application still provides a mounting structure of torsional spring, mounting structure include first installation department, second installation department and install in the torsional spring of first installation department and second installation department, the torsional spring is above-mentioned torsional spring, first arm and second arm install respectively in first installation department and second installation department, be provided with on first installation department and the second installation department respectively with first arm and second arm complex anti-disengaging structure, the quilt of first arm snatch the structure outstanding in first installation department.

Preferably, the second mounting portion includes: the rotatable axis of rotation of installing in the frame, fixedly connected with mounting flange in the axis of rotation, mounting flange be provided with for axis of rotation axial extension just is regarded as the anti-disengaging structure's of second installation department installation through-hole, the second arm passes the installation through-hole just the end of second arm stretch out in mounting flange.

Preferably, the first mounting portion includes: be fixed in the mounting panel of frame, be provided with on the mounting panel as the anti-disengaging structure's of first installation department joint groove, the joint groove runs through along thickness direction the mounting panel just has the orientation the opening of torsional spring, the joint groove has the extension line type of buckling, first arm passes the mounting panel and falls into in the joint groove, the extension line type in joint groove is preferred to be formed into L shape.

Preferably, first installation department is still including being fixed in the guide board of frame, the guide board with the mounting panel adjacent and set up with the interval and with form between the mounting panel with the communicating guiding groove of opening in joint groove, first arm passes the guiding groove and falls into in the joint groove.

Preferably, the rotary shaft and the mounting plate are mounted to a common frame, which is formed as a base plate.

According to the torsional spring technical scheme of this application, be provided with at the first end of the first arm of torsional spring and be used for the structure is snatched by the torsional spring, promptly snatch the structure as snatching the direct position of gripping during the torsional spring, consequently can control the torsional spring more reliably when loading and unloading to realize the purpose of convenient loading and unloading. According to the technical scheme of the torsion spring mounting structure, the installation reliability of the torsion spring can be improved by arranging the anti-disengaging structure.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:

fig. 1 is a perspective view of a torsion spring according to a preferred embodiment of the present application.

Fig. 2 is a partial schematic view of a mounting structure of a torsion spring according to a preferred embodiment of the present application.

Fig. 3 is a plan view of the first mounting part in the mounting structure of the torsion spring shown in fig. 2.

Fig. 4 is a perspective view of a rotation shaft of the second mounting part in the mounting structure of the torsion spring according to the present application.

Fig. 5 and 6 are schematic views of a torsion spring and a mounting structure thereof according to a preferred embodiment of the present application.

Detailed Description

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

As shown in fig. 1, the torsion spring according to the present application includes a spring body 10 and first and second arms 11 and 12 extending from the spring body 10, a first end 111 of the first arm 11 being provided with a caught structure for the torsion spring.

The spring body 10 is a main body portion of a conventional torsion spring, and is generally formed by twisting and bending a metal wire. The first arm 11 and the second arm 12 extend from the spring body 10 and are typically formed by extending wires of the spring body 10. The first arm 11 and the second arm 12 may be integrally formed with the spring body 10 or may be separately formed to be fixedly coupled to each other. The first arm 11 and the second arm 12 are usually provided as mounting sites for torsion springs, one of which is used for fixed mounting and the other of which is connectable to the movable part to utilize torque to effect conversion between potential energy and mechanical energy when the movable part is moved.

In the conventional torsion spring, since the first arm and the second arm are generally used for the functions of mounting and connecting completely, the torsion spring cannot be held or clamped effectively and reliably when the torsion spring is attached or detached, resulting in a great difficulty.

In the solution of the present application, a grabbed structure for the torsion spring is inventively provided at the first end 111 of the first arm 11. The grasped structure is used for grasping, clamping or controlling the direct holding part of the torsion spring, and is not used for a mounting part or a fixing part for direct fixing, so that the torsion spring can be more reliably controlled during assembling and disassembling, and convenient assembling and disassembling are realized. Although described in the present application as providing the said grasped structure on the first end 111 of the first arm 11, it should be understood by those skilled in the art that the so-called "first" arm and "second" arm are a plurality of arms used to differentiate torsion springs, and are not intended to limit the claimed technical solution.

The grasped structure may be in the form of a variety of structures suitable for gripping, preferably as shown in fig. 1, the grasped structure being a loop structure or a bent structure, more preferably a hook shape.

The first arm 11 may have a variety of extended orientations relative to the spring body 10, such as radially inward, radially outward, axially upward or downward (up and down in the orientation depicted in fig. 1), to accommodate different mounting applications. Preferably, as shown in fig. 1, the first arm 11 includes a first extension 112 connecting the first end 111 and the spring body 10, and the first extension 112 extends outward in a tangential direction of the spring body 10.

The first end portion 111 of the first arm 11 may be coaxially disposed with the first extending portion 112, and in a preferred case of the present application, as shown in fig. 1, 5 and 6, the first end portion 111 extends along the axial direction of the spring body 10, and the grasped structure is disposed at a tip end of the first end portion 111. By providing the first end portion 111 to extend along the axial direction of the spring body 10, the torsion spring can be mounted or connected at an extended position in the axial direction.

As shown in fig. 1, the second arm 12 preferably includes a second extending portion 122 connected to the spring body 10, and a second end portion 121 connected to the second extending portion 122, the second extending portion 122 extending outward in a tangential direction of the spring body 10, the second end portion 121 extending in an axial direction of the spring body 10, and a tip end of the second end portion 121 being formed as a bent portion 123. In said preferred case, the second arm is structurally designed similarly to the first arm, with the main difference being that the second extension and the first extension have a different tangential direction. In addition, the grabbed structure is arranged at the tail end of the first end part 111 and is used for clamping or controlling the torsion spring; and a bent portion 123 is formed at the end of the second end portion 121, and the bent portion 123 mainly serves as a stop and a limit, as shown in fig. 5.

The above-described embodiments of the first arm also apply to the second arm. For example, the second arm may also have an orientation relative to the spring body 10, such as radially inward or outward, axially upward or downward, to accommodate different mounting applications.

The first end portion 111 and the second end portion 121 both extend along the axial direction of the spring body 10, and the orientations of the two portions may be the same or opposite to each other, so as to adapt to different installation occasions. Preferably, the first end portion 111 and the second end portion 121 extend toward the same side of the spring body 10 in the axial direction. For example, as shown in fig. 1, in the structural orientation shown in fig. 1, the spring body 10 has two sides in the axial direction: i.e. an upper side and a lower side. The first end portion 111 and the second end portion 121 each extend toward the upper side of the spring body 10 in the axial direction.

The structural features of the torsion spring itself are described in detail above. Because the end of the first arm of the torsion spring is provided with the structure that is used for being grabbed of the torsion spring, the torsion spring can be conveniently assembled and disassembled.

The mounting structure of the torsion spring of the present application is described in detail below with reference to fig. 2 to 6.

As shown in fig. 5 and 6, the installation structure of the torsion spring according to the present application includes a first installation part 100, a second installation part 200 and a torsion spring installed in the first installation part 100 and the second installation part 200, the torsion spring is preferably the torsion spring mentioned above, the first arm 11 and the second arm 12 are respectively installed in the first installation part 100 and the second installation part 200, the first installation part 100 and the second installation part 200 are provided with an anti-falling structure matched with the first arm 11 and the second arm 12, and the grabbed structure of the first arm 11 protrudes from the first installation part 100.

In the illustrated embodiment, the engagement of the first mounting portion 100 with the first arm 11 causes the first arm 11 to remain stationary. The second mounting portion 200 is designed with a movable member that cooperates with the second arm 12 to act as a torsion spring when moving. In other embodiments, the movable member may be designed in the first mounting portion 100, or in both mounting portions. Because be provided with in first installation department and second installation department with first arm and second arm complex anti-disengaging structure, consequently after the installation of completion torsional spring, can obtain good anti-disengaging effect, ensure the reliable installation of torsional spring.

The first and second mounting portions may have various structural forms, and are not limited to the structural forms shown in the drawings of the present specification. The anti-dropping structure can also have various structural forms, such as a limiting hole, a limiting groove, a locking ring and the like.

According to a preferred embodiment of the present application, as shown in fig. 2, 3 and 5, the second mounting part 200 includes: the mounting structure comprises a rotating shaft 201 rotatably mounted on the frame 300, a mounting flange 202 is fixedly connected to the rotating shaft 201, the mounting flange 202 is provided with a mounting through hole 203 which extends axially relative to the rotating shaft 201 and serves as an anti-falling structure of the second mounting portion 200, and the second arm 12 passes through the mounting through hole 203 and the tail end of the second arm 12 extends out of the mounting flange 202.

As shown in fig. 2, a through hole (not shown) is provided in the housing 300, and a peripheral wall 204 is preferably provided around the through hole to play a role of positioning and protection when the rotation shaft 201 is inserted into the through hole. In the embodiment, the rotating shaft 201 as a movable member is rotatable with respect to the chassis 300. As shown in fig. 4, a mounting flange 202 (protruding in the radial direction) is provided at the upper end (shown in the orientation in the drawing) of the rotating shaft 201. The mounting flange 202 is provided with a mounting through hole 203 for allowing the second arm 12 to pass through, so that the bent portion of the second end of the second arm 12 protrudes out of the mounting flange 202 to perform a stopping and limiting function. Therefore, the anti-slip function can be performed by the fitting of the fitting through-hole 203 and the bent portion.

As shown in fig. 2, 3, 5 and 6, the first mounting portion 100 preferably includes: be fixed in mounting panel 101 of frame 300, be provided with on the mounting panel 101 as the anti-disengaging structure's of first installation department joint groove 102, joint groove 102 runs through along the thickness direction mounting panel 101 and have the orientation the opening 1021 of torsional spring, joint groove 102 has the extension line type of buckling, first arm 11 passes mounting panel 101 and falls into in the joint groove 102, the extension line type of joint groove 102 is preferred to be formed into L shape.

The plane on which the mounting plate 101 is located is preferably arranged perpendicular to the circumferential direction of the spring body 10, but may be designed to have a predetermined angle. The mounting plate 101 is provided with a locking groove 102, and the locking groove 102 extends inward from an edge of the mounting plate 102, and preferably penetrates the mounting plate 102 in the thickness direction. As shown in fig. 3 in particular, the catching groove 102 has a bent extension line type. After the first arm 11 passes through the mounting plate 10 and is clamped into the clamping groove 102, the first arm can automatically fall into the deepest part of the clamping groove 102 under the action of elastic force, as shown in fig. 5. Because of the bent extension line of the snap-in groove 102, once the first arm falls into the deepest part of the snap-in groove 102, it is difficult to separate from the snap-in groove 102 through the bent part, thereby realizing the function of preventing separation. The bent extension line of the catching groove 102 may have various linear shapes such as a W shape, but is preferably an L shape as shown in fig. 3. The line pattern here is not limited to the view from which it is viewed, and for example, the line pattern of the catching groove 102 in fig. 3 is a reverse L shape (viewed from the outside inward perpendicular to the paper surface), but is an L shape viewed from the inside outward perpendicular to the paper surface.

Further preferably, in order to further guide the first arm 11, as shown in fig. 2, 5 and 6, the first mounting portion 100 further includes a guide plate 103 fixed to the frame 300, the guide plate 103 is disposed adjacent to and spaced apart from the mounting plate 101 and forms a guide groove 104 communicating with the opening 1021 of the engaging groove 102 with the mounting plate 101, and the first arm 11 passes through the guide groove 104 and falls into the engaging groove 102.

By the design of the guide plate 103, a guide groove 104 is defined between it and the mounting plate 101. Therefore, in the process of clamping the first arm 11 to the clamping groove 102, the first extending part 112 can be guided and limited by the guide groove 104. Thus, as shown in fig. 5, a secure mounting can be formed in which the first end portion is retained by the snap groove 102, while the first extension portion is retained by the guide groove 104. On the basis of the bent line type of the snap groove 102, the reliability of installation is enhanced.

As shown in fig. 5, the guide plate 103 and the mounting plate 101 may be fixedly connected together by a vertical wall (not shown) in a preferable case, thereby obtaining a better structural strength.

Preferably, as shown in fig. 2 and 5, the rotating shaft 201 and the mounting plate 101 are mounted to a common frame 300, and the frame 300 is formed as a base plate.

The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.

In addition, any combination of the various embodiments of the present application can be made, and the same should be considered as the disclosure of the present invention as long as the combination does not depart from the spirit of the present application.

Claims (11)

1. The torsion spring is characterized by comprising a spring body (10), a first arm (11) and a second arm (12), wherein the first arm (11) and the second arm (12) extend out of the spring body (10), a grabbing structure for the torsion spring is arranged at a first end portion (111) of the first arm (11), and the grabbing structure is annular or bent.

2. The torsion spring according to claim 1, wherein said grabbed structure is hook-shaped.

3. The torsion spring according to claim 2, wherein the first arm (11) comprises a first extension (112) connecting the first end portion (111) and the spring body (10), the first extension (112) extending outward in a tangential direction of the spring body (10), the first end portion (111) extending in an axial direction of the spring body (10), the caught structure being provided at a tip of the first end portion (111).

4. The torsion spring according to claim 3, wherein the second arm (12) includes a second extension portion (122) connected to the spring body (10) and a second end portion (121) connected to the second extension portion (122), the second extension portion (122) extending outward in a tangential direction of the spring body (10), the second end portion (121) extending in an axial direction of the spring body (10) and a tip of the second end portion (121) being formed as a bent portion (123).

5. The torsion spring according to claim 4, wherein the first end portion (111) and the second end portion (121) extend toward the same side of the spring body (10) in the axial direction.

6. Mounting structure of torsional spring, mounting structure includes first installation department (100), second installation department (200) and install in the torsional spring of first installation department (100) and second installation department (200), its characterized in that, the torsional spring be any one of claims 1-5 the torsional spring, first arm (11) and second arm (12) install respectively in first installation department (100) and second installation department (200), be provided with respectively on first installation department (100) and second installation department (200) with first arm (11) and second arm (12) complex anti-disengaging structure, the structure of being snatched of first arm (11) salient in first installation department (100).

7. The mounting structure according to claim 6, wherein the second mounting portion (200) includes: rotatable axis of rotation (201) of installing in frame (300), fixedly connected with mounting flange (202) on axis of rotation (201), mounting flange (202) are provided with for axis of rotation (201) axial extension just is regarded as anti-disengaging structure's of second installation portion (200) installation through-hole (203), second arm (12) pass installation through-hole (203) just the end of second arm (12) stretch out in mounting flange (202).

8. The mounting structure according to claim 6 or 7, wherein the first mounting portion (100) includes: be fixed in mounting panel (101) of frame (300), be provided with on mounting panel (101) as anti-disengaging structure's of first installation department (100) joint groove (102), joint groove (102) run through along the thickness direction mounting panel (101) and have the orientation opening (1021) of torsional spring, joint groove (102) have the extension line type of buckling, first arm (11) pass mounting panel (101) and fall into in joint groove (102).

9. The mounting structure according to claim 8, wherein the extended line shape of the catching groove (102) is formed in an L-shape.

10. The mounting structure according to claim 8, wherein the first mounting portion (100) further comprises a guide plate (103) fixed to the frame (300), the guide plate (103) is disposed adjacent to and spaced apart from the mounting plate (101) and forms a guide groove (104) communicating with the opening (1021) of the catching groove (102) with the mounting plate (101), and the first arm (11) passes through the guide groove (104) and falls into the catching groove (102).

11. The mounting structure according to claim 7, characterized in that the turning axle (201) and the mounting plate (101) are mounted to a common frame (300), the frame (300) being formed as a base plate.

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