Torsion spring reset structure of balancing stand

Abstract

The utility model discloses a torsion spring reset structure of balancing stand, including torsion spring, fixed plate, balancing stand, torsion spring is provided between balancing stand and fixed plate, torsion spring includes first elastic rod, second elastic rod and torsion spring fixed part, first elastic rod abuts against the fixed plate, second elastic rod abuts against the fixed plate, and the torsion spring fixed part is fixed on the fixed plate. The second elastic rod abuts against the balance frame, and the torsion spring fixing part and the balance frame are hinged to each other and interfere with each other. According to the torsion spring reset structure of the balancing stand, stable pressing is achieved, meanwhile, the keyboard structure can be simplified, production efficiency is improved, cost is reduced, and large-scale production is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of keyboard key switches, in particular to a torsion spring reset structure of a balance bracket. Background Art

[0002] In the existing key switches, in order to achieve the function of smooth pressing, a balance bracket structure is often provided. At the same time, the existing balance bracket structure is often arranged inside the key switch, with a complex structure, complex production process, high cost and low production efficiency. Summary of the Utility Model

[0003] Aiming at the above deficiencies, the purpose of the utility model is to provide a torsion spring reset structure of a balance bracket, which can simplify the keyboard structure, improve the production efficiency, reduce the cost and facilitate large-scale production while achieving smooth pressing.

[0004] The technical solution adopted by the utility model to achieve the above purpose is:

[0005] A torsion spring reset structure of a balance bracket, comprising a torsion spring, a fixing plate and a balance bracket, characterized in that: the torsion spring is arranged between the balance bracket and the fixing plate, the torsion spring includes a first elastic rod, a second elastic rod and a torsion spring fixing part, the first elastic rod abuts against the fixing plate, the second elastic rod abuts against the balance bracket, and the torsion spring fixing part is hinged with the balance bracket and interferes with each other.

[0006] As a further improvement of the utility model, two first connection blocks and two second connection blocks are arranged on the upper surface of the fixing plate, a side rotation groove is formed on the side of each of the two first connection blocks, and a rotation hole is formed on each of the two second connection blocks.

[0007] As a further improvement of the utility model, the balance bracket includes a first balance rod and a second balance rod.

[0008] As a further improvement of the utility model, the first balance rod is integrally in a U-shaped structure, the first balance rod includes a first cross bar, a first vertical bar vertically connected to one end of the first cross bar, and a second vertical bar vertically connected to the other end of the first cross bar. A first rotation shaft facing outward is arranged at the end of each of the first vertical bar and the second vertical bar, and two second rotation shafts are formed on the first cross bar. The first rotation shaft is movably clamped into the side rotation groove of the fixing plate.

[0009] As a further improvement of the present invention, the second balance bar is an overall U-shaped structure, and the second balance bar includes a second cross bar, a third vertical bar vertically connected to one end of the second cross bar, a fourth vertical bar vertically connected to the other end of the second cross bar, and a third cross bar connected between the third vertical bar and the fourth vertical bar. A third rotating shaft is respectively arranged outward at both ends of the second cross bar, and a fourth rotating shaft is respectively arranged outward at both ends of the third cross bar, and the fourth rotating shaft is movably inserted into the rotating hole of the fixed plate.

[0010] As a further improvement of the present invention, a connecting rotation hole is respectively provided on the inner side of the first vertical rod and the second vertical rod; and a connecting shaft movably inserted into the connecting rotation hole is respectively provided on the outer side of the third vertical rod and the second vertical rod.

[0011] As a further improvement of the present invention, the torsion spring is in a V-shaped structure as a whole.

[0012] As a further improvement of the present invention, the first elastic rod includes a first lower elastic rod and a second lower elastic rod, the first lower elastic rod and the second lower elastic rod are respectively abutted against the fixed plate, the second elastic rod includes a first upper elastic rod, a second upper elastic rod and a third upper elastic rod, the first upper elastic rod is respectively perpendicular to the second upper elastic rod and the third upper elastic rod.

[0013] As a further improvement of the present invention, the first upper elastic rod abuts against the lower end of the second cross rod, the second upper elastic rod abuts against the lower end of the third vertical rod, and the third upper elastic rod abuts against the lower end of the fourth vertical rod.

[0014] As a further improvement of the present invention, the first upper elastic rod abuts against the lower end of the first horizontal rod, the second upper elastic rod abuts against the lower end of the first vertical rod, and the third upper elastic rod abuts against the lower end of the second vertical rod.

[0015] As a further improvement of the present invention, the first upper elastic rod is connected to the second upper elastic rod and the third upper elastic rod as a whole.

[0016] As a further improvement of the present invention, the torsion spring fixing portion is rotatably connected to the connecting shaft.

[0017] The beneficial effects of the utility model are:

[0018] (1) By setting a reset torsion spring between the balance bar and the fixed plate, the two balance bars of the balance frame are divided into a first balance bar and a second balance bar, which effectively reduces the jamming of the balance bar, reduces the failure rate, and increases the service life of the key switch.

[0019] (2) The balance frame no longer needs to be fixed on the base of the keyboard switch, but is fixed on the fixed plate, which can be easily matched with various types of keyboard switches. There is no need to set the balance frame inside the narrow switch, which reduces production costs and improves production efficiency.

[0020] The above is an overview of the technical solution of the utility model. The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the first embodiment;

[0022] Figure 2 is a structural schematic diagram of a fixed plate;

[0023] Figure 3 It is a structural schematic diagram of the balance frame;

[0024] Figure 4 It is the structural diagram of the torsion spring;

[0025] Figure 5 It is a back view of the torsion spring on the second balance bar in the first embodiment;

[0026] In the figure: 1, torsion spring; 11, first elastic rod; 111, first lower elastic rod; 112, second lower elastic rod; 12, second elastic rod; 121, first upper elastic rod; 122, second upper elastic rod; 123, third upper elastic rod; 13, torsion spring fixing part; 2, fixing plate; 21, first connecting block; 211, side rotation groove; 22, second connecting block; 221, rotation hole; 3, balancing frame; 31, first balancing rod; 311, first cross bar; 312, first vertical rod; 313, second vertical rod; 314, first rotation axis; 315, second rotation axis; 316, connecting rotation hole; 32, second balancing rod; 321, second cross bar; 322, third vertical rod; 323, fourth vertical rod; 324, third cross bar; 325, third rotation axis; 326, fourth rotation axis; 327, connecting rotation axis; DETAILED DESCRIPTION

[0027] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] Please refer to Figures 1 to 5The embodiment of the utility model provides a torsion spring 1 reset structure of a balance frame 3, comprising a torsion spring 1, a fixing plate 2, and a balance frame 3. The torsion spring 1 is arranged between the balance frame 3 and the fixing plate 2. The torsion spring 1 comprises a first elastic rod 11, a second elastic rod 12, and a fixing portion of the torsion spring 1. The first elastic rod 11 abuts against the fixing plate 2, the second elastic rod 12 abuts against the balance frame 3, and the fixing portion of the torsion spring 1 and the balance frame 3 are hinged to each other and interfere with each other. When the key switch is pressed downward, the balance frame 3 is pressed downward by the force to press the second elastic rod 12 of the torsion spring 1 downward, so that the torsion spring 1 is deformed. When the key switch is released, the torsion spring 1 abuts against the fixing plate 2 due to the first elastic rod 11, and the fixing portion of the torsion spring 1 is hinged on the balance frame 3, so that the balance frame 3 is lifted upward under its own elastic restoring force to achieve the purpose of reset. The torsion spring 1 has a sensitive reaction speed, a long service life, and a low price, which effectively reduces the manufacturing cost of the key switch and improves the practicality of the key switch. The balance frame 3 provides a balancing force for pressing, so that when the key switch is pressed, the entire decoupling portion can be pressed down steadily, realizing the function of balanced pressing. Moreover, the balance frame 3 no longer needs to be fixed on the base of the keyboard switch, but is fixed on the fixing plate 2, so that it can be easily matched with keyboard switches of various models, and there is no need to set the balance frame 3 inside the narrow switch, thereby reducing production costs and improving production efficiency. While achieving stable pressing, the keyboard structure can also be simplified, production efficiency can be improved, costs can be reduced, and large-scale production can be facilitated.

[0033] Regarding the specific structural setting of the fixing plate 2, as shown in FIG. Figure 2 As shown, two first connection blocks 21 and two second connection blocks 22 are disposed on the upper surface of the fixing plate 2 , a side rotation groove 211 is formed on the side of the two first connection blocks 21 , and a rotation hole 221 is formed on the two second connection blocks 22 .

[0034] Regarding the specific structural setting of the balance frame 3, as shown in FIG. Figure 3 As shown, the balance frame 3 includes a first balance pole 31 and a second balance pole 32 , and the first balance frame 31 and the second balance pole 32 are rotatably connected.

[0035] Regarding the specific structural setting of the first balance bar 31, Figure 3As shown, the first balance bar 31 is in a U-shaped structure as a whole, and the first balance bar 31 includes a first cross bar 311, a first vertical bar 312 vertically connected to one end of the first cross bar 311, and a second vertical bar 313 vertically connected to the other end of the first cross bar 311, and a first rotating shaft 314 facing outward is respectively provided at the end of the first vertical bar 312 and the second vertical bar 313, and two second rotating shafts 315 are formed on the first cross bar 311. The first rotating shaft 314 is movably inserted into the side rotating groove 211 of the fixing plate 2, and the movably inserted manner is that the first rotating shaft 314 can rotate in the lower side rotating groove 211, and can also escape from the lower side rotating groove 211 and move laterally.

[0036] Regarding the specific structural arrangement of the second balance bar 32, as shown in FIG. Figure 3 As shown, the second balance bar 32 is an overall U-shaped structure, and the second balance bar 32 includes a second cross bar 321, a third vertical bar 322 vertically connected to one end of the second cross bar 321, a fourth vertical bar 323 vertically connected to the other end of the second cross bar 321, and a third cross bar 324 connected between the third vertical bar 322 and the fourth vertical bar 323. A third rotation axis 325 is respectively arranged outwardly at both ends of the second cross bar 321, and a fourth rotation axis 326 is respectively arranged outwardly at both ends of the third cross bar 324. The fourth rotation axis 326 is movably inserted into the rotation hole 221 of the fixing plate 2. Due to the circular and closed structure of the rotation hole 221, the fourth rotation axis 326 can only rotate in the rotation hole 221, and will not escape from the rotation hole 221 to move laterally.

[0037] Regarding the specific connection method of the first balance bar 3 and the second balance bar 3, as shown in FIG. Figure 3 As shown, a connecting rotating hole 316 is respectively provided on the inner side of the first vertical rod 312 and the second vertical rod 313; and a connecting rotating shaft 327 movably inserted into the connecting rotating hole 316 is respectively provided on the outer side of the third vertical rod 322 and the second vertical rod 313. The connecting rotating shaft 327 is movably inserted into the connecting rotating hole 316, so that the first balancing rod 31 and the second balancing rod 32 are connected, providing a balancing force for pressing, so that the entire key switch can be pressed down steadily, and the function of balanced pressing is realized.

[0038] Regarding the specific structural setting of the torsion spring 1, as shown in FIG. Figure 4 As shown, the torsion spring 1 is in a V-shaped structure as a whole.

[0039] Regarding the specific structural setting of the first elastic rod 11, Figure 4As shown, the first elastic rod 11 includes a first lower elastic rod 111 and a second lower elastic rod 112. The first lower elastic rod 111 and the second lower elastic rod 112 are respectively abutted against the fixed plate 2, so that the torsion spring 1 is pressed against the fixed plate 2, giving the second elastic rod 12 sufficient supporting force, simplifying the keyboard structure, improving production efficiency, reducing costs, and facilitating large-scale production.

[0040] Regarding the specific structural setting of the second elastic rod 12, as shown in FIG. Figure 4 As shown, the second elastic rod 12 includes a first upper elastic rod 121, a second upper elastic rod 122 and a third upper elastic rod 123, and the first upper elastic rod 121 is perpendicular to the second upper elastic rod 122 and the third upper elastic rod 123, respectively, to achieve the function of balanced pressing, simplify the keyboard structure, improve production efficiency, reduce costs, and facilitate large-scale production. Preferably, the first upper elastic rod 121 is connected to the second upper elastic rod 122 and the third upper elastic rod 123 as a whole, thereby ensuring that the elastic restoring force of the second elastic rod 12 is consistent everywhere, so that the entire key switch can be pressed down smoothly.

[0041] The specific method of the torsion spring 1 acting on the balance frame 3 is as follows: Figure 5 As shown, the first upper elastic rod 121 is in contact with the lower end of the second cross bar 321, the second upper elastic rod 122 is in contact with the lower end of the third vertical rod 322, and the third upper elastic rod 123 is in contact with the lower end of the fourth vertical rod 323, so that when the key switch is pressed, the second balance rod 32 in the balance frame 3 is forced to drive the first balance rod 31 to press downward, the second cross bar 321 presses the first upper elastic rod 121 downward, the third vertical rod 322 presses the second upper elastic rod 122 downward, and the fourth vertical rod 323 presses the third upper elastic rod 123 downward, so that the second balance rod 3 presses the second elastic rod 3 The rod 12 is pressed downward to deform the torsion spring 1. When the key switch is released, the torsion spring 1, under its own elastic restoring force, causes the first upper elastic rod 121 to drive the second cross bar 321 to reset upward, the second upper elastic rod 122 drives the third vertical rod 322 to reset upward, and the third upper elastic rod 123 drives the fourth vertical rod 323 to reset, so that the second balance rod 3 drives the first balance rod 3 to reset, thereby achieving the purpose of reset. The whole process is smooth and responsive, with high stability, which is conducive to the coordination between the various accessories, realizes the function of balanced pressing, simplifies the keyboard structure, improves production efficiency, reduces costs, and facilitates large-scale production.

[0042] Preferably, for the hinged connection between the torsion spring 1 and the balancing frame 3 , the torsion spring fixing portion 13 is rotatably connected to the connecting shaft 327 , thereby realizing the hinged connection of the torsion spring 1 to the balancing frame 3 , thereby realizing the stable connection of the torsion spring 1 .

[0043] Embodiment 2

[0044] In the first embodiment, the structure of the torsion spring reset is described. In this embodiment, the differences from other embodiments are mainly described, and the same structure is not repeated in this embodiment.

[0045] The main difference between Example 2 and Example 1 is that the torsion spring 1 acts on the first balance rod 31, and the specific method is: the first upper elastic rod 121 abuts against the lower end of the first cross rod 311, the second upper elastic rod 122 abuts against the lower end of the first vertical rod 312, and the third upper elastic rod 123 abuts against the lower end of the second vertical rod 313. When the key switch is pressed, the first balance bar 31 in the balance frame 3 is forced to drive the second balance bar 32 to press downward, the first cross bar 311 presses the first upper elastic bar 121 downward, the first vertical bar 312 presses the second upper elastic bar 122 downward, and the second vertical bar 313 presses the third upper elastic bar 123 downward, so that the first balance bar 31 presses the second elastic bar 12 downward, causing the torsion spring 1 to deform. When the key switch is released, the torsion spring 1, under its own elastic restoring force, the first upper elastic bar 121 drives the first cross bar 311 to reset upward, the second upper elastic bar 122 drives the first vertical bar 312 to reset, and the third upper elastic bar 123 drives the second vertical bar 313 to reset, so that the first balance bar 31 drives the second balance bar 32 to reset, achieving the purpose of overall reset. The whole process is smooth and responsive, with high stability, which is conducive to the cooperation between the various accessories, realizes the function of balanced pressing, simplifies the keyboard structure, improves production efficiency, reduces costs, and facilitates large-scale production.

[0046] It should be noted that the torsion spring reset structure of the balance frame disclosed in the utility model is an improvement on the specific structure, and the specific control method is not the innovation point of the utility model. The key switches and other components involved in the utility model can be universal standard parts or components known to those skilled in the art, and their structures, principles and control methods are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are within the protection scope of the present invention.

Claims

1. A torsion spring reset structure of a balancing frame, comprising a torsion spring, a fixing plate, and a balancing frame, characterized in that: The torsion spring is arranged between the balance frame and the fixed plate. The torsion spring includes a first elastic rod, a second elastic rod, and a torsion spring fixing part. The first elastic rod abuts against the fixed plate, the second elastic rod abuts against the balance frame, and the torsion spring fixing part is hinged to the balance frame and interferes with each other.

2. The torsion spring reset structure of the balancing frame according to claim 1, characterized in that: On the upper surface of the fixed plate, two first connection blocks and two second connection blocks are provided. On the sides of the two first connection blocks, a side rotation groove is respectively formed, and on the two second connection blocks, a rotation hole is respectively formed.

3. The torsion spring reset structure of the balancing frame according to claim 2, characterized in that: The balance frame includes a first balance rod and a second balance rod.

4. The torsion spring reset structure of the balancing frame according to claim 3, characterized in that: The first balance rod has an overall U-shaped structure. The first balance rod includes a first cross bar, a first vertical bar perpendicularly connected to one end of the first cross bar, and a second vertical bar perpendicularly connected to the other end of the first cross bar. At the ends of the first vertical bar and the second vertical bar, a first rotation shaft facing outward is respectively provided. On the first cross bar, two second rotation shafts are formed, and the first rotation shaft is movably clamped into the side rotation groove of the fixed plate.

5. The torsion spring reset structure of the balancing frame according to claim 4, characterized in that: The second balance rod has an overall square structure. The second balance rod includes a second cross bar, a third vertical bar perpendicularly connected to one end of the second cross bar, a fourth vertical bar perpendicularly connected to the other end of the second cross bar, and a third cross bar connected between the third vertical bar and the fourth vertical bar. At both ends of the second cross bar, a third rotation shaft is respectively provided outward, and at both ends of the third cross bar, a fourth rotation shaft is respectively provided outward. The fourth rotation shaft is movably clamped into the rotation hole of the fixed plate.

6. The torsion spring reset structure of the balancing frame according to claim 5, characterized in that: On the inner sides of the first vertical bar and the second vertical bar, a connection rotation hole is respectively opened; on the outer sides of the third vertical bar and the second vertical bar, a connection rotation shaft movably clamped into the connection rotation hole is respectively provided.

7. The torsion spring reset structure of the balancing frame according to claim 1, characterized in that: The torsion spring has an overall V-shaped structure.

8. The torsion spring reset structure of the balancing frame according to claim 5, characterized in that: The first elastic rod includes a first lower elastic rod and a second lower elastic rod. The first lower elastic rod and the second lower elastic rod respectively abut against the fixed plate. The second elastic rod includes a first upper elastic rod, a second upper elastic rod, and a third upper elastic rod. The first upper elastic rod is perpendicular to the second upper elastic rod and the third upper elastic rod respectively.

9. The torsion spring reset structure of the balancing frame according to claim 8, characterized in that: The first upper elastic rod abuts against the lower end of the second cross bar, the second upper elastic rod abuts against the lower end of the third vertical bar, and the third upper elastic rod abuts against the lower end of the fourth vertical bar.

10. The torsion spring reset structure of the balancing frame according to claim 8, characterized in that: The first upper elastic rod abuts against the lower end of the first cross bar, the second upper elastic rod abuts against the lower end of the first vertical bar, and the third upper elastic rod abuts against the lower end of the second vertical bar.

11. The torsion spring reset structure of the balancing frame according to claim 8, characterized in that: The first upper elastic rod is connected to the second upper elastic rod and the third upper elastic rod as a whole.

12. The torsion spring reset structure of the balancing frame according to claim 6, characterized in that: The torsion spring fixing part is rotationally connected to the connection rotation shaft.

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