High-strength flat spiral spring

Abstract

The utility model provides a high-strength flat spiral spring, belongs to the technical field of spiral springs, and aims to solve the problem that the service life of the spiral spring is affected due to the fact that a fixed end is easily damaged when the spiral spring is stretched in the prior art. Comprising a volute spiral spring main body, a first connecting piece, a second connecting piece, a connecting assembly, a placement limiting piece, a limiting mounting mechanism and a mounting assembly mechanism, the first connecting piece is fixedly connected to the inner end of the volute spiral spring body. The second connecting piece is fixedly connected to the outer end of the volute spiral spring body. The connecting assembly is arranged on the outer side of the volute spiral spring body. Two groups of placing limiting pieces are arranged, and one group of placing limiting pieces is fixedly connected to the upper part of the first connecting piece; the limiting mounting mechanism is arranged on the outer side of the volute spiral spring main body; and the mounting combination mechanism is arranged on the inner side of the connecting combination piece, so that the connecting position of the volute spiral spring main body is prevented from being excessively pulled and damaged, and the service life of the volute spiral spring main body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of scroll springs, and more specifically, particularly relates to a high-strength flat scroll spring. Background Technique

[0002] A flat scroll spring, also known as a clockwork spring, is a special type of spring, characterized in that one end is fixed and the other end is acted upon by a torque. Under the action of the torque, the spring material will produce bending elastic deformation, causing the spring to twist in a plane, and the magnitude of its deformation angle is proportional to the applied torque. To improve the strength of the scroll spring, generally alloying elements such as silicon content are increased to improve the performance.

[0003] The existing application number is: CN202321017600.X. The utility model relates to the technical field of flat scroll springs, specifically to a high-strength flat scroll spring, including a scroll spring body, an inner chuck fixedly connected to one end of the inner side of the scroll spring body, and an outer chuck fixedly connected to the end of the scroll spring body away from the inner chuck; a positioning groove penetratingly opened in the middle of the scroll spring body, the spacing of the positioning groove increasing sequentially from the end of the inner chuck towards the end of the outer chuck, and a connecting piece being threadedly connected between several positioning grooves; a bolt head fixedly connected to one end of the connecting piece close to the outer chuck. By the cooperation of the scroll spring body, the positioning groove, the connecting piece, the bolt head and the nut, and then using the nut to fix the end of the connecting piece away from the bolt head, the number of turns of the coil can be fixed. After the number of turns is fixed, the deformation degree of the spring is synchronously fixed, and thus the torque of the spring can be limited, so as to achieve the purpose of easy adjustment.

[0004] Based on the above, when the existing scroll spring is in use, since one end of the scroll spring is in a fixed state, when the scroll spring is stretched to the limit, continuously stretching the scroll spring easily causes damage to the fixed end, affecting the service life of the scroll spring. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a high-strength flat scroll spring to solve the problem that when the existing scroll spring is in use, since one end of the scroll spring is in a fixed state, when the scroll spring is stretched to the limit, continuously stretching the scroll spring easily causes damage to the fixed end, affecting the service life of the scroll spring.

[0006] The purpose and effect of the high-strength flat scroll spring of the utility model are achieved by the following specific technical means:

[0007] A high-strength flat scroll spring includes a scroll spring main body, a first connecting piece, a second connecting piece, a connecting combination, a placement limiting piece, a limiting installation mechanism and an installation combination mechanism;

[0008] The first connecting piece is fixedly connected to the inner end of the scroll spring body;

[0009] The second connecting piece is fixedly connected to the outer end of the scroll spring body;

[0010] The connecting assembly is arranged on the outer side of the scroll spring body;

[0011] Two groups of placement limit pieces are provided. One group of placement limit pieces is fixedly connected above the first connecting piece, and the other group of placement limit pieces is fixedly connected above the second connecting piece;

[0012] The limit installation mechanism is arranged on the outer side of the scroll spring body;

[0013] The installation combination mechanism is arranged inside the connecting assembly.

[0014] Furthermore, the limit installation mechanism includes: a connecting rope, a friction piece, a position limiting groove and a position limiting block;

[0015] One end of the connecting rope is provided with a hook structure. One end of the connecting rope is fixedly connected to the placement limit piece, and the other end of the connecting rope is fixedly connected to the other group of placement limit pieces through the hook;

[0016] The friction piece is an arc-shaped long strip structure, and the friction piece is fixedly connected to the outer side of the scroll spring body;

[0017] The position limiting groove is opened at the inner end of the outer side of the scroll spring body;

[0018] The position limiting block is fixedly connected to the inner side of the scroll spring body.

[0019] Furthermore, the limit installation mechanism also includes: an installation connecting bolt;

[0020] The installation connecting bolt is threadedly connected to the outer side of the second connecting piece.

[0021] Furthermore, the limit installation mechanism also includes: a first protection link and a second protection link;

[0022] Two groups of the first protection links are provided. The two groups of the first protection links are respectively hinged to the upper and lower ends of the second connecting piece;

[0023] Two groups of the second protection links are provided. The two groups of the second protection links are respectively hinged to the upper and lower ends of the second connecting piece, and the two groups of the second protection links are respectively hinged to the first protection links.

[0024] Furthermore, the installation combination mechanism includes: a combination connecting chute and a combination slot;

[0025] The combined connecting slide grooves are provided with two groups in total, and the two groups of combined connecting slide grooves are respectively opened at the upper and lower ends of the inner side of the scroll spring body;

[0026] There are two groups of combined slots, which are respectively opened on the inner side of the connecting assembly.

[0027] Furthermore, the installation assembly mechanism also includes: a combined plug block and a combined support spring;

[0028] The combination plug blocks are provided in two groups, and the two groups of combination plug blocks are respectively slidably connected inside the combination connection slide groove;

[0029] The combination support springs are arranged in four groups in total. The four groups of combination support springs are respectively fixedly connected to the inside of the combination connection slide grooves, and the outer sides of the four groups of combination support springs are all fixedly connected to the combination plug-in blocks.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model provides a limit installation mechanism, and when the spiral spring body is placed, the first connecting member and the second connecting member are fixed under the action of the connecting rope, thereby preventing the spiral spring body from loosening during transportation. At the same time, when in use, the second connecting member is fixed by installing the connecting bolt, which facilitates the connection between the spiral spring body and the driving member and prevents the driving member from slipping out from the inside of the second connecting member.

[0032] The utility model provides a limit installation mechanism, so that the hinge position of the first connecting rod and the second connecting rod is squeezed and moved outward. At this time, the inner sides of the first connecting rod and the second connecting rod pull the second connecting piece inward, so that the end of the second connecting piece is retracted inward, thereby avoiding bending of the second connecting piece and improving the strength of the entire volute spring body. When the volute spring body is in use, the volute spring body is stretched. When the volute spring body is about to be stretched to the limit, the position limiting block is inserted into the position limiting groove, thereby limiting the volute spring body and avoiding the connection position of the volute spring body from being damaged by excessive pulling, thereby extending the service life of the volute spring body. The friction member reduces the contact area between the volute spring bodies, reduces the friction force of the volute spring body when in use, and improves the use effect of the volute spring body.

[0033] The utility model inserts a connecting assembly of one group of spiral spring bodies into the outside of another group of spiral spring bodies through the setting of the limiting installation mechanism. At this time, the combined insert block is inserted into the interior of the combined slot under the action of the combined support spring. At this time, the combination of the two groups of spiral spring bodies is realized, the spiral spring bodies are extended, and the application range of the spiral spring bodies is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0035] Figure 2 It is a schematic diagram of the friction member structure of the present utility model.

[0036] Figure 3 It is a schematic diagram of the limit installation mechanism structure of the present utility model.

[0037] Figure 4 It is a schematic diagram of the first protection link structure of the present utility model.

[0038] Figure 5 It is a schematic diagram of the installation combination mechanism structure of the present utility model.

[0039] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0040] 1. Volute spring body; 101. Connecting rope; 102. Friction member; 103. Position limiting groove; 104. Position limiting block; 105. Installation connection bolt; 106. First protection link; 107. Second protection link; 2. First connecting member; 3. Second connecting member; 4. Connecting combination member; 401. Combination connecting chute; 402. Combination slot; 403. Combination plug; 404. Combination support spring; 5. Placing limit member. Specific embodiments

[0041] The following further describes the embodiments of the present utility model in detail with reference to the drawings and embodiments.

[0042] Embodiment 1:

[0043] As shown in Figure 1 to Figure 4 shown:

[0044] The present utility model provides a high-strength planar volute spring, including a volute spring body 1, a first connecting member 2, a second connecting member 3, a connecting combination member 4, a placing limit member 5 and a limit installation mechanism;

[0045] The first connecting member 2 is fixedly connected to the inner end of the volute spring body 1;

[0046] The second connecting member 3 is fixedly connected to the outer end of the volute spring body 1;

[0047] The connecting combination member 4 is arranged on the outer side of the volute spring body 1;

[0048] Two groups of placing limit members 5 are provided, one group of placing limit members 5 is fixedly connected above the first connecting member 2, and the other group of placing limit members 5 is fixedly connected above the second connecting member 3;

[0049] The limit installation mechanism is arranged outside the main body 1 of the scroll spring.

[0050] Among them, the limit installation mechanism includes: a connecting rope 101, a friction member 102, a position limiting groove 103, a position limiting block 104, a mounting connecting bolt 105, a first protection link 106 and a second protection link 107;

[0051] One end of the connecting rope 101 is provided with a hook structure. One end of the connecting rope 101 is fixedly connected to the placement limiting member 5, and the other end of the connecting rope 101 is fixedly connected to another group of placement limiting members 5 through the hook;

[0052] The friction member 102 is an arc-shaped long strip structure, and the friction member 102 is fixedly connected to the outside of the main body 1 of the scroll spring;

[0053] The position limiting groove 103 is opened at the inner end of the outside of the main body 1 of the scroll spring;

[0054] The position limiting block 104 is fixedly connected to the inside of the main body 1 of the scroll spring;

[0055] The mounting connecting bolt 105 is threadedly connected to the outside of the second connecting member 3;

[0056] Two groups of the first protection links 106 are provided, and the two groups of the first protection links 106 are respectively hinged to the upper and lower ends of the second connecting member 3;

[0057] Two groups of the second protection links 107 are provided, and the two groups of the second protection links 107 are respectively hinged to the upper and lower ends of the second connecting member 3. The two groups of the second protection links 107 are respectively hinged to the first protection links 106.

[0058] In use, when placing the scroll spring body 1, the first connecting member 2 and the second connecting member 3 are fixed under the action of the connecting rope 101, preventing the scroll spring body 1 from becoming loose during transportation. At the same time, during use, the second connecting member 3 is fixed by installing the connecting bolt 105, facilitating the connection between the scroll spring body 1 and the driving member and preventing the driving member from slipping out inside the second connecting member 3. When the force exerted by the driving member on the second connecting member 3 is too large, the hinge positions of the first protective link 106 and the second protective link 107 are squeezed and move outward. At this time, the inner sides of the first protective link 106 and the second protective link 107 pull the second connecting member 3 inward, causing the end of the second connecting member 3 to converge inward, preventing the second connecting member 3 from bending and improving the strength of the entire scroll spring body 1. When using the scroll spring body 1, stretch the scroll spring body 1. When it is about to be stretched to the limit, the position limiting block 104 is inserted into the position limiting groove 103, achieving the limit of the scroll spring body 1 and preventing the connection position of the scroll spring body 1 from being overly pulled and damaged, thus extending the service life of the scroll spring body 1. The friction member 102 reduces the contact area between the scroll spring bodies 1, reduces the friction force during the use of the scroll spring bodies 1, and improves the use effect of the scroll spring bodies 1.

[0059] Embodiment Two:

[0060] The present utility model provides a high-strength planar scroll spring. On the basis of Embodiment One, as Figures 1 to 5 shown, it further includes an installation combination mechanism, and the installation combination mechanism is arranged inside the connection combination member 4.

[0061] Among them, the installation combination mechanism includes: a combined connection sliding groove 401, a combined slot 402, a combined insert block 403, and a combined support spring 404;

[0062] Two groups of combined connection sliding grooves 401 are provided, and the two groups of combined connection sliding grooves 401 are respectively opened at the upper and lower ends inside the scroll spring body 1;

[0063] Two groups of combined slots 402 are provided, and the two groups of combined slots 402 are respectively opened inside the connection combination member 4;

[0064] Two groups of combined insert blocks 403 are provided, and the two groups of combined insert blocks 403 are respectively slidably connected inside the combined connection sliding groove 401;

[0065] Four groups of combined support springs 404 are provided, and the four groups of combined support springs 404 are respectively fixedly connected inside the combined connection sliding groove 401, and the outer sides of the four groups of combined support springs 404 are fixedly connected to the combined insert block 403.

[0066] In use, when it is necessary to extend the scroll spring body 1, a connecting assembly 4 of a group of scroll spring bodies 1 is inserted outside another group of scroll spring bodies 1. At this time, the combined insert block 403 is inserted into the inside of the combined slot 402 under the action of the combined support spring 404. At this time, the combination of the two groups of scroll spring bodies 1 is realized, the extension of the scroll spring body 1 is realized, and the applicable range of the scroll spring body 1 is increased.

[0067] In this article, the following points need to be noted:

[0068] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0069] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0070] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A high-strength planar spiral spring, comprising a spiral spring body (1), a first connecting member (2), a second connecting member (3), a connecting assembly (4), a placement limiter (5), a limit installation mechanism and an installation assembly mechanism; characterized in that: The first connecting member (2) is fixedly connected to the inner end of the scroll spring body (1); the second connecting member (3) is fixedly connected to the outer end of the scroll spring body (1); the connecting assembly (4) is arranged on the outer side of the scroll spring body (1); two groups of the placement limiting members (5) are arranged, one group of the placement limiting members (5) is fixedly connected above the first connecting member (2), and the other group of the placement limiting members (5) is fixedly connected above the second connecting member (3); the limiting installation mechanism is arranged on the outer side of the scroll spring body (1); and the installation assembly mechanism is arranged on the inner side of the connecting assembly (4).

2. A high-strength planar spiral spring according to claim 1, characterized in that: The position limiting installation mechanism comprises: a connecting rope (101), a friction piece (102), a position limiting groove (103) and a position limiting block (104); one end of the connecting rope (101) is provided with an iron hook structure, one end of the connecting rope (101) is fixedly connected to a placement limiting piece (5), and the other end of the connecting rope (101) is fixedly connected to another group of placement limiting pieces (5) via the iron hook; the friction piece (102) is an arc-shaped long strip structure, and the friction piece (102) is fixedly connected to the outside of the scroll spring body (1); the position limiting groove (103) is provided at the inner end of the outer side of the scroll spring body (1); and the position limiting block (104) is fixedly connected to the inner side of the scroll spring body (1).

3. A high-strength planar spiral spring according to claim 1, characterized in that: The position limiting installation mechanism further comprises: an installation connection bolt (105); the installation connection bolt (105) is threadedly connected to the outside of the second connection member (3).

4. A high-strength planar spiral spring according to claim 1, characterized in that: The position-limiting installation mechanism further comprises: a protective first connecting rod (106) and a protective second connecting rod (107); two groups of the protective first connecting rod (106) are provided, and the two groups of the protective first connecting rod (106) are respectively hinged at the upper and lower ends of the second connecting member (3); two groups of the protective second connecting rod (107) are provided, and the two groups of the protective second connecting rod (107) are respectively hinged at the upper and lower ends of the second connecting member (3), and the two groups of the protective second connecting rod (107) are respectively hinged to the protective first connecting rod (106).

5. A high-strength planar spiral spring according to claim 1, characterized in that: The mounting assembly mechanism comprises: a combined connecting slide groove (401) and a combined slot (402); two groups of the combined connecting slide groove (401) are provided, and the two groups of combined connecting slide grooves (401) are respectively opened at the upper and lower ends of the inner side of the scroll spring body (1); and two groups of the combined slot (402) are provided, and the two groups of combined slots (402) are respectively opened at the inner side of the connecting assembly (4).

6. A high-strength planar spiral spring as claimed in claim 5, characterized in that: The mounting assembly mechanism further comprises: a combination plug block (403) and a combination support spring (404); two groups of the combination plug blocks (403) are provided, and the two groups of combination plug blocks (403) are respectively slidably connected inside the combination connection slide groove (401); four groups of combination support springs (404) are provided, and the four groups of combination support springs (404) are respectively fixedly connected inside the combination connection slide groove (401), and the outer sides of the four groups of combination support springs (404) are all fixedly connected to the combination plug blocks (403).

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