Reed structure of timer

Abstract

The utility model relates to the technical field of timer reeds, and discloses a timer reed structure, which comprises a reed body, a vertical part and a horizontal part, wherein the vertical part and the horizontal part are integrally formed with the reed body in a cold punching manner; wherein a deformation part which is formed by cold stamping is arranged between the connecting sections of the horizontal part and the vertical part and is used for dispersing deformation after the end part of the horizontal part is pressed downwards, so that deformation force is prevented from being concentrated at the root parts of the horizontal part and the vertical part. According to the utility model, more middle deformation is generated through the structure of the curve deformation part, the deformation force is dispersed while the elasticity of the reed is met, the cracking phenomenon caused by concentrated stress at the root part is effectively reduced, and in addition, the force can be dispersed more at the component force arc opening.

Description

Technical Field

[0001] The utility model relates to the technical field of timer reeds, in particular to a timer reed structure. Background Art

[0002] CN205004260U discloses a timer reed structure, comprising a reed body with a horizontal portion and a vertical portion. The intersection of the horizontal and vertical portions of the reed body is provided with a diagonal edge and a horizontal edge. This reed structure modifies the reed's stress points, replacing the 0.75×45° chamfered connection at the reed's base with a 0.75×18mm diagonal edge connection. This disperses the reed's bending stress, but the distribution is not uniform enough, and the nearly 90-degree angle at the base intersection can easily lead to stress concentration. Utility Model Content

[0003] The technical problem to be solved by the present invention is: in order to overcome the above problems, a timer reed structure is provided, which solves the above problems.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A timer reed structure includes a reed body and a vertical portion and a horizontal portion that are cold-stamped integrally with the reed body, wherein a cold-stamped deformation portion is provided between the connecting section of the horizontal portion and the vertical portion for dispersing the deformation of the end portion of the horizontal portion after being pressed downward, thereby avoiding the deformation force being concentrated at the roots of the horizontal portion and the vertical portion.

[0006] Preferably, a curved deformation portion is provided between the horizontal portion and the vertical portion, and the bending deformation of the curved deformation portion increases the deformation force of the connecting section at that location, thereby reducing the stress on the root position.

[0007] Preferably, the curved deformation portion has at least two rotating elbows, which is conducive to bilateral symmetry during deformation and avoids excessive oblique bending.

[0008] Preferably, a stamped connection portion is stamped at the root of the curved deformation portion, a necking section is provided at the root of the stamped connection portion, and force distribution arc openings are provided on both sides of the necking section, which can effectively avoid the root of the curved deformation portion from breaking.

[0009] Preferably, two bilaterally symmetrical thin-plate cutting edges are formed in the middle section of the horizontal portion by stamping, and the hyperbolic deformation strip in the middle of the thin-plate cutting edges is consistent with the thickness of the spring body.

[0010] Preferably, the thickness of the front and rear ends of the thin slice cutting edge is greater than the thickness in the middle, and the thickness of the thin slice cutting edge near the hyperbolic deformation strip is greater than the thickness at its edge.

[0011] The advantages and positive effects of the present invention are: more deformation of the middle part is generated by the structure of the curved deformation part, which disperses the deformation force while satisfying the elasticity of the spring, effectively reducing the cracking phenomenon caused by the concentrated force at the root position, and the force distribution arc can also further disperse the force;

[0012] In another embodiment, the elastic deformation section is waisted on both sides and then thinned on both sides. In this way, during elastic deformation, due to the lower cross-sectional thickness in the middle, the deformation force will be dispersed from the middle point of the hyperbolic deformation strip to both ends. Moreover, due to the thinning of the side edges, greater deformation can be achieved without breaking, thereby effectively improving the fatigue resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of another embodiment of the present utility model. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0017] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings:

[0018] like Figure 1-2 As shown, the timer reed structure described in the utility model includes a reed body 10 and a vertical portion 11 and a horizontal portion 12 that are cold-stamped integrally with the reed body 10, wherein a cold-stamped deformation portion is provided between the connecting section of the horizontal portion 12 and the vertical portion 11 to disperse the deformation of the end of the horizontal portion 12 after being pressed downward, thereby avoiding the deformation force being concentrated at the roots of the horizontal portion 12 and the vertical portion 11.

[0019] Preferably, a curved deformation portion 13 is provided between the horizontal portion 12 and the vertical portion 11 , and the bending deformation of the curved deformation portion 13 increases the deformation force of the connecting section at that location, thereby reducing the stress on the root position.

[0020] Preferably, the curved deformation portion 13 has at least two rotating elbows, which is beneficial for bilateral symmetry during deformation and avoids excessive oblique bending.

[0021] Preferably, a stamped connection portion 14 is stamped at the root of the curved deformation portion 13, a necking section is provided at the root of the stamped connection portion 14, and force-dividing arc openings 15 are provided on both sides of the necking section, which can effectively prevent the root of the curved deformation portion 13 from breaking.

[0022] Preferably, two bilaterally symmetrical thin-blade cutting edges 16 are formed in the middle section of the horizontal portion 12 by stamping, and the hyperbolic deformation strip 17 in the middle of the thin-blade cutting edge 16 is consistent with the thickness of the spring body 10 .

[0023] Preferably, the thickness of the front and rear ends of the thin blade edge portion 16 is greater than the thickness in the middle, and the thickness of the thin blade edge portion 16 near the hyperbolic deformation strip 17 is greater than the thickness at its edge.

[0024] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A timer reed structure, comprising a reed body (10) and a vertical portion (11) and a horizontal portion (12) integrally formed by cold stamping with the reed body (10), characterized in that: A cold-stamped deformation portion is provided between the connecting section of the horizontal portion (12) and the vertical portion (11) for dispersing the deformation of the end of the horizontal portion (12) after being pressed downward, thereby preventing the deformation force from being concentrated at the root of the horizontal portion (12) and the vertical portion (11).

2. A timer reed structure according to claim 1, characterized in that: A curved deformation portion (13) is provided between the horizontal portion (12) and the vertical portion (11). The bending deformation of the curved deformation portion (13) increases the deformation force of the connecting section at that location, thereby reducing the stress on the root position.

3. A timer reed structure according to claim 2, characterized in that: The curved deformation portion (13) has at least two rotating elbows, which is beneficial for bilateral symmetry during deformation and avoids excessive oblique bending.

4. A timer reed structure according to claim 3, characterized in that: A punched connection portion (14) is formed by punching at the root of the curved deformation portion (13), a necking section is provided at the root of the punched connection portion (14), and force-dividing arc openings (15) are provided on both sides of the necking section, thereby effectively preventing the root of the curved deformation portion (13) from breaking.

5. The timer reed structure according to claim 1, characterized in that: Two left-right symmetrical thin-plate cutting edges (16) are formed in the middle section of the horizontal portion (12) by stamping, and the thickness of the hyperbolic deformation strip (17) in the middle of the thin-plate cutting edge (16) is consistent with that of the spring body (10).

6. A timer reed structure according to claim 5, characterized in that: The thickness of the front and rear ends of the thin slice cutting edge (16) is greater than the thickness in the middle, and the thickness of the thin slice cutting edge (16) near the hyperbolic deformation strip (17) is greater than the thickness at its edge.

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