Spring structure applied to rotation of switch contact and switch

Abstract

The utility model provides a spring structure applied to rotation of a switch contact and a switch, and the spring structure comprises a first press-in end which is pressed into a first position of an internal space of a rotating shaft after being stressed; the first press-in guide part is connected with the first press-in end and plays a guiding role when the first press-in end is pressed into a first position of the inner space of the rotating shaft under stress; the second press-in end is pressed into a second position of the inner space of the rotating shaft after being stressed; the second press-in guide part is connected with the second press-in end and plays a guiding role when the second press-in end is pressed into a second position of the inner space of the rotating shaft under stress; two ends of the spring spiral coil are respectively connected with the first press-in end and the second press-in end; a clamping part is arranged at the joint of the spring spiral coil and the first press-in end, and the clamping part is clamped into the clamping part of the internal space of the switch contact. The spring structure provided by the utility model is simply clamped into the rotating shaft, and effective limiting between the moving contact and the rotating shaft is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of switch design and relates to a spring structure, and in particular to a spring structure and a switch used for rotating switch contacts. Background Art

[0002] At present, many main circuits are equipped with switches for on-off control. The switch contacts, such as the moving contacts, are arranged in the rotating shaft of the switch, and the moving contacts must be flexibly rotated in the switch. The existing switches usually use two or more parts to position and clamp the moving contacts, and the positioning and matching relationship is complicated.

[0003] Conventional moving contact clamping springs are generally set to a torsion type, which causes uneven force on the moving contact during rotation and makes it difficult to control the moving contact to maintain consistency during movement, resulting in unstable contact state at work, affecting the breaking characteristics and arc extinguishing effect of the moving contact, causing serious burning of the moving contact and reducing the life of the moving contact breaking operation; and the positioning and installation of the moving contact thrust spring are difficult and complicated, resulting in low production and assembly efficiency and high labor costs. Summary of the invention

[0004] The present application provides a spring structure and a switch for rotating switch contacts, which are used to solve the problem that the contact is subjected to uneven force during rotation and cannot maintain consistency during rotation.

[0005] In a first aspect, the present application provides a spring structure for rotating a switch contact, wherein the switch contact is a rotating contact and is arranged in a rotating shaft of the switch; the spring structure comprises: a first pressing end, which is pressed into a first position of an internal space of the rotating shaft after being subjected to a force; a first pressing guide portion, which is connected to the first pressing end and plays a guiding role when the first pressing end is pressed into the first position of the internal space of the rotating shaft under a force; a second pressing end, which is pressed into a second position of the internal space of the rotating shaft after being subjected to a force; a second pressing guide portion, which is connected to the second pressing end and plays a guiding role when the second pressing end is pressed into the second position of the internal space of the rotating shaft under a force; a spring spiral coil, whose two ends are respectively connected to the first pressing end and the second pressing end; a clamping portion is provided at the connection between the spring spiral coil and the first pressing end, and the clamping portion is clamped into the clamping portion of the internal space of the switch contact.

[0006] In an implementation of the first aspect, the force applied to the first pressing end and the second pressing end refers to a process in which the switch contact rotates into the inner space of the rotating shaft.

[0007] In an implementation of the first aspect, the internal space of the rotating shaft includes a slot; the switch contact is rotated into the slot of the rotating shaft from one side to the other side through a boss.

[0008] In an implementation of the first aspect, the internal space of the rotating shaft includes a square groove; the first pressing end is pressed into a first position of the rotating shaft square groove after being subjected to force, and the second pressing end is pressed into a second position of the rotating shaft square groove after being subjected to force.

[0009] In an implementation of the first aspect, after the first press-in end is subjected to force, the first press-in guide portion serves as a fixed guide and is pressed into a first position of the square groove of the rotating shaft until the spring spiral coil is pressed into the convex bump with an inverted buckle of the rotating shaft; after the second press-in end is subjected to force, the second press-in guide portion serves as a fixed guide and is pressed into a second position of the square groove of the rotating shaft; the engaging portion of the spring spiral coil is engaged with the engaging portion of the internal space of the switch contact, thereby tightening the switch contact.

[0010] In an implementation of the first aspect, both the first press-in end and the second press-in end include a right-angle structure for pressing in.

[0011] In an implementation of the first aspect, the first press-in guide portion and the second press-in guide portion both include a straight arm structure for guiding.

[0012] In a second aspect, the present application provides a switch, comprising: the spring structure described above.

[0013] In an implementation of the second aspect, the switch contact is a moving contact; the moving contact is arranged in a rotating shaft of the switch, and the spring structure is pressed into and clamped between the moving contact and the rotating shaft by force.

[0014] In an implementation of the second aspect, the switch is arranged in a two-pole circuit and a four-pole circuit, and the two moving contacts in the two-pole circuit and the four moving contacts in the four-pole circuit remain in the same position before and after rotation.

[0015] As described above, the spring structure and switch for rotating the switch contact described in the present application have the following beneficial effects:

[0016] The spring structure of the present application is simple in structure, more convenient to install, and the way of snapping into the rotating shaft is simple, which greatly improves the assembly efficiency. The limit constraint with the moving contact and the rotating shaft is more convenient and effective, which not only saves costs but also ensures the symmetry and tightening effect of the moving contact. The spring structure can simultaneously realize the positioning, limiting and matching of the moving contact. The moving contact rotates to compress the energy storage and provide thrust, which not only ensures that the moving contact can generate sufficient contact pressure, but also enhances the ability of the moving contact to cooperate with the short-circuit current of the circuit breaking through the spring spiral coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1Shown is a structural diagram of an application scenario of the spring structure described in an embodiment of the present application.

[0018] Figure 2 Shown is a schematic diagram of the structural connection of the spring structure described in an embodiment of the present application.

[0019] Figure 3 Shown is a structural diagram of the spring structure described in an embodiment of the present application.

[0020] Figure 4 A partial structural diagram of a switch showing a spring structure according to an embodiment of the present application.

[0021] Figure 5 Shown is a schematic diagram of the engagement structure of the spring structure described in an embodiment of the present application.

[0022] Figure 6 Shown is a schematic diagram of the structural connection of the switch described in an embodiment of the present application.

[0023] Figure 7 Shown is a bipolar circuit structure diagram of a switch described in an embodiment of the present application.

[0024] Component number description

[0025] 1 Switch contact

[0026] 101 Contact slot

[0027] 102 contact boss

[0028] 2 Spring structure

[0029] 201 Second press-in guide

[0030] 202 first press-in guide

[0031] 203 First press-in end

[0032] 204 Second press-in end

[0033] 205 Spring Helical Coil

[0034] 3 Axis

[0035] 301 shaft slot

[0036] 302 Shaft convex hull

[0037] 303 Shaft Square Slot DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0039] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present application in a schematic manner, and therefore the illustrations only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0040] The technical solutions in the embodiments of the present application will be described in detail below in conjunction with the drawings in the embodiments of the present application.

[0041] See also Figure 1 , which shows the application scenario structure diagram of the spring structure described in the embodiment of the present application. Figure 1 As shown, this embodiment provides a spring structure 2 used for rotating a switch contact 1. The switch contact 1 is a rotating contact and is arranged in a rotating shaft 3 of the switch.

[0042] The existing moving contact positioning structure uses a separate positioning piece to position the moving contact in the shaft groove and installs a spiral compression spring to realize the rotation of the moving contact. The present application adopts a new design, omitting the positioning piece, and improving the shortcomings of the traditional structure, such as unreliable positioning and insufficient space for the moving contact to rotate.

[0043] See also Figure 2 and Figure 3 , respectively showing a schematic diagram of the structural connection of the spring structure described in the embodiment of the present application and a structural diagram of the spring structure described in the embodiment of the present application. Figure 2 and Figure 3 As shown, the spring structure 2 includes: a first press-in end 203 , a first press-in guide 202 , a spring spiral coil 205 , a second press-in end 204 and a second press-in guide 201 .

[0044] The first pressing end 203 is pressed into a first position in the inner space of the rotating shaft after receiving force.

[0045] The first press-in guide portion 202 is connected to the first press-in end 203 and plays a guiding role when the first press-in end 203 is pressed into the first position of the internal space of the shaft.

[0046] The second pressing end 204 is pressed into the second position of the inner space of the rotating shaft after receiving force.

[0047] The second press-in guide portion 201 is connected to the second press-in end 204 and plays a guiding role when the second press-in end 204 is pressed into the second position of the internal space of the shaft.

[0048] Two ends of the spring spiral coil 205 are respectively connected to the first press-in end 203 and the second press-in end 204; a clamping portion is provided at the connection between the spring spiral coil 205 and the first press-in end 203, and the clamping portion is clamped into the clamping portion of the internal space of the switch contact.

[0049] Specifically, the second press-in guide portion 201, the first press-in guide portion 202, the first press-in end 203 and the second press-in end 204 of the spring structure are used for positioning the switch contact, the first press-in end 203, the second press-in end 204 and the spring spiral coil 205 are used for limiting the switch contact, and the spring spiral coil 205 is also used to cooperate with the switch contact to rotate, compress and store energy and provide thrust.

[0050] In one embodiment, the first press-in end and the second press-in end both include a right-angle structure for press-in.

[0051] In one embodiment, the first press-in guide portion and the second press-in guide portion both include a straight arm structure for guiding.

[0052] like Figure 3 As shown, the first press-in end 203 includes a right-angle structure for pressing in, and is pressed into the first position of the internal space of the shaft after being subjected to force. The first press-in guide portion 202 includes a straight arm structure for guiding, which is connected to the first press-in end 203 and plays a guiding role when the first press-in end 203 is pressed into the first position of the internal space of the shaft under force. The second press-in end 204 includes a right-angle structure for pressing in, and is pressed into the second position of the internal space of the shaft after being subjected to force. The second press-in guide portion 201 includes a straight arm structure for guiding, which is connected to the second press-in end 204 and plays a guiding role when the second press-in end 204 is pressed into the second position of the internal space of the shaft under force.

[0053] In one embodiment, the force applied to the first pressing end and the second pressing end refers to a process in which the switch contact rotates into the inner space of the rotating shaft.

[0054] In one embodiment, the internal space of the rotating shaft includes a slot; the switch contact is rotated into the slot of the rotating shaft from one side to the other side through a boss.

[0055] It should be noted that the boss structure of the present application is only used as an implementation method of rotation here. Other structures with step features that can rotate within a certain space and keep the spring structure principle unchanged are also within the scope of protection of the present application.

[0056] In one embodiment, the internal space of the rotating shaft includes a square groove; the first pressing end is pressed into a first position of the rotating shaft square groove after being subjected to force, and the second pressing end is pressed into a second position of the rotating shaft square groove after being subjected to force.

[0057] See also Figure 4 , which shows a partial structure diagram of a switch of a spring structure according to an embodiment of the present application. Figure 4 As shown, the first press-in end 203 and the second press-in end 204 are subjected to force, which refers to the process in which the switch contact 1 is rotated into the internal space of the rotating shaft 3. The internal space of the rotating shaft includes a rotating shaft slot 301; the switch contact 1 is rotated into the rotating shaft slot 301 from one side to the other side (for example, from bottom to top) through a contact boss 102. The internal space of the rotating shaft includes a rotating shaft square slot 303; the first press-in end 203 is pressed into the first position of the rotating shaft square slot 303 after being subjected to force, and the second press-in end 204 is pressed into the second position of the rotating shaft square slot 303 after being subjected to force. Among them, the first position refers to the side where the switch contact 1 contacts the rotating shaft 3, and the second position refers to the side where the rotating shaft convex bump 302 is located.

[0058] It should be noted that the convex hull structure of the present application is only one embodiment of the rotating shaft here. Other structures with a certain thickness, width and height, chamfered or rounded corners, and maintaining the spring structure principle unchanged are also within the scope of protection of the present application.

[0059] Specifically, the switch contact is a moving contact, and the moving contact 1 is rotated from bottom to top into the shaft slot 301 corresponding to the shaft 3 through the contact boss 102, and the moving contact spring structure 2 is pressed into the shaft square slot 303, and one end of the moving contact spring structure 2 is pressed into the shaft square slot 303 through the right angle 203, with the straight arm 202 serving as a fixed guide until the moving contact spring spiral coil 205 is pressed into the shaft with an inverted convex bump 302, and the pressed spring spiral coil 205 penetrates into the convex bump 302 after compression, and one end of the spring structure 2 is tightly fixed, and the other end of the moving contact spring structure 2 is pressed into the shaft square slot 303 through the right angle 204, with the straight arm 201 serving as a fixed guide.

[0060] In one embodiment, after the first pressing end is subjected to force, the first pressing guide portion serves as a fixed guide and is pressed into the first position of the square groove of the rotating shaft until the spring spiral coil is pressed into the convex bump with an undercut on the rotating shaft.

[0061] In one embodiment, after the second pressing end is subjected to force, the second pressing guide portion serves as a fixed guide and is pressed into the second position of the square groove of the rotating shaft.

[0062] In one embodiment, the engaging portion of the spring spiral coil is engaged with the engaging portion of the inner space of the switch contact, thereby tightening the switch contact.

[0063] See also Figure 5 , which is a schematic diagram of the engagement structure of the spring structure described in the embodiment of the present application. Figure 5 As shown, the engaging portion of the spring spiral coil (combined with Figure 3 The engaging portion is the end of the spring spiral coil 205, close to the first pressing end) is engaged with the engaging portion (contact engaging groove 101) of the inner space of the switch contact, thereby tightening the switch contact.

[0064] Specifically, the engaging portion has a straight arm feature, which is inserted into the contact slot 101 corresponding to the moving contact 1, pushing the moving contact upward to achieve the effect of tightening the moving contact, and the right-angle arms 203 and 204 at the pressing end of the spring structure are inserted into the square slot 303 of the rotating shaft, assisted by the diagonal straight arms 202 and 201. The two ends of the spring structure are firmly fixed between the moving contact and the rotating shaft, and the relative positions of the spring structure and the moving contact and the spring structure and the rotating shaft are fixed by the clamping structure at both ends, ensuring that the spiral coil part of the spring structure can only be compressed and released between the moving contact and the rotating shaft, giving the moving contact appropriate contact pressure.

[0065] Therefore, the installation of the improved spring structure of the present application only requires three steps: the first step is to insert the switch contact (moving contact), put in the spring structure, and twist the limiting part of the spring spiral coil clamping part 205 into the moving contact limiting groove 101; the cumbersome operations of arranging the moving contact positioning ear, snapping it into the positioning piece, inserting the contact spring, snapping the positioning assembly into the rotating shaft, and twisting the positioning piece fixing ear in the traditional installation method are omitted.

[0066] See also Figure 6 , which is a schematic diagram showing the structural connection of the switch described in the embodiment of the present application. Figure 6 As shown, this embodiment provides a switch, including: the above-mentioned spring structure 2, and also includes a switch contact 1 and a rotating shaft 3.

[0067] The switch contact 1 is a rotary contact, which is arranged in the rotating shaft 3 of the switch.

[0068] The existing moving contact positioning structure uses a separate positioning piece to position the moving contact in the shaft groove and installs a spiral compression spring to realize the rotation of the moving contact. The present application adopts a new design, omitting the positioning piece, and improving the shortcomings of the traditional structure, such as unreliable positioning and insufficient space for the moving contact to rotate.

[0069] like Figure 2 and Figure 3 As shown, the spring structure 2 includes: a first press-in end 203 , a first press-in guide portion 202 , a spring spiral coil 205 , a second press-in end 204 , and a second press-in guide portion 201 .

[0070] The first press-in end 203 is pressed into the first position of the internal space of the shaft after being subjected to force. The first press-in guide 202 is connected to the first press-in end 203, and plays a guiding role when the first press-in end 203 is pressed into the first position of the internal space of the shaft after being subjected to force. The second press-in end 204 is pressed into the second position of the internal space of the shaft after being subjected to force. The second press-in guide 201 is connected to the second press-in end 204, and plays a guiding role when the second press-in end 204 is pressed into the second position of the internal space of the shaft after being subjected to force. The two ends of the spring spiral coil 205 are respectively connected to the first press-in end 203 and the second press-in end 204; a clamping portion is provided at the connection between the spring spiral coil 205 and the first press-in end 203, and the clamping portion is clamped into the clamping portion of the internal space of the switch contact.

[0071] Specifically, the second press-in guide portion 201, the first press-in guide portion 202, the first press-in end 203 and the second press-in end 204 of the spring structure are used for positioning, the first press-in end 203, the second press-in end 204 and the spring spiral coil 205 are used for limiting, and the spring spiral coil 205 is also used for compressing energy storage to provide thrust.

[0072] like Figure 3 As shown, the first press-in end 203 includes a right-angle structure for pressing in, and is pressed into the first position of the internal space of the shaft after being subjected to force. The first press-in guide portion 202 includes a straight arm structure for guiding, which is connected to the first press-in end 203 and plays a guiding role when the first press-in end 203 is pressed into the first position of the internal space of the shaft under force. The second press-in end 204 includes a right-angle structure for pressing in, and is pressed into the second position of the internal space of the shaft after being subjected to force. The second press-in guide portion 201 includes a straight arm structure for guiding, which is connected to the second press-in end 204 and plays a guiding role when the second press-in end 204 is pressed into the second position of the internal space of the shaft under force.

[0073] like Figure 4As shown, the first press-in end 203 and the second press-in end 204 are subjected to force, which refers to the process in which the switch contact 1 is rotated into the internal space of the rotating shaft 3. The internal space of the rotating shaft includes a rotating shaft slot 301; the switch contact 1 is rotated into the rotating shaft slot 301 from one side to the other side through a contact boss 102. The internal space of the rotating shaft includes a rotating shaft square slot 303; the first press-in end 203 is pressed into the first position of the rotating shaft square slot 303 after being subjected to force, and the second press-in end 204 is pressed into the second position of the rotating shaft square slot 303 after being subjected to force. Among them, the first position refers to the side where the switch contact 1 contacts the rotating shaft 3, and the second position refers to the side where the rotating shaft convex bump 302 is located.

[0074] Specifically, the moving contact 1 is rotated from bottom to top into the slot feature 301 corresponding to the rotating shaft 3 through the feature 102 boss, and the moving contact spring 2 is pressed into the square slot of the rotating shaft 303. One end of the moving contact spring 2 is pressed into the square slot of the rotating shaft 303 through the right-angle feature 203, and the straight arm 202 is used as a fixed guide until the spiral coil 205 of the moving contact spring is pressed into the inverted convex bulge of the rotating shaft 302. The pressed spring spiral coil is inserted into the convex bulge 302 after compression, and one end of the spring is tightly fixed. The other end of the moving contact spring 2 is pressed into the square slot of the rotating shaft 303 through the right-angle feature 204, and the straight arm 201 is used as a fixed guide.

[0075] like Figure 5 As shown, the engaging portion of the spring spiral coil is engaged with the engaging portion of the inner space of the switch contact, thereby tightening the switch contact.

[0076] Specifically, another straight arm feature 205 is inserted into the slot feature 101 corresponding to the moving contact 1, pushing the moving contact upward to achieve the effect of tightening the moving contact, and the right-angle arms of the springs 203 and 204 are inserted into the square slots of the rotating shaft 303, assisted by the diagonal straight arms 202 and 201. The two ends of the spring are firmly fixed between the moving contact and the rotating shaft, and the relative positions of the spring and the moving contact and the spring and the rotating shaft are fixed by the clamping structure at both ends, ensuring that the spiral coil part of the spring can only be compressed and released between the moving contact and the rotating shaft, giving the moving contact appropriate contact pressure.

[0077] In one embodiment, the switch contact is a moving contact.

[0078] The moving contact is arranged in the rotating shaft of the switch, and the spring structure is pressed into and clamped between the moving contact and the rotating shaft by force.

[0079] In actual applications, the switch is a leakage switch. In addition, the spring structure of the present application is applicable to any switch in which a contact spring is embedded in a rotating shaft. The spring structure can be proportionally enlarged or reduced, and it is within the scope of protection of the present application as long as the structural principle remains unchanged.

[0080] At present, the moving contact is set in the rotating shaft of the leakage switch to realize the function of connecting and disconnecting the main circuit of the leakage switch. In order to realize functional protection, the leakage switch needs to be applicable to conventional two-pole and four-pole circuits, requiring the moving contact to rotate flexibly in the switch and to maintain consistency stably and reliably at the same time. Existing leakage switches usually use two or more parts to position and clamp the moving contact. The positioning and matching relationship is complicated. The conventional moving contact clamping spring is generally set to a torsion type, which causes uneven force on the moving contact during rotation and makes it difficult to control the moving contact to maintain consistency during movement, resulting in unstable contact state of the moving contact, affecting the breaking characteristics and arc extinguishing effect of the moving contact, causing serious burning of the moving contact and reducing the life of the breaking operation of the moving contact; and the positioning and installation of the moving contact thrust spring are difficult and complicated, resulting in low production and assembly efficiency and high labor costs.

[0081] In one embodiment, the switch is provided in a two-pole or four-pole circuit, and the two moving contacts in the two-pole circuit and the four moving contacts in the four-pole circuit remain in the same position before and after rotation. In addition, the switch can also be provided in any circuit with rotating contacts other than two-pole or four-pole circuits.

[0082] Specifically, if the two-pole or multi-pole moving contacts are not closed synchronously, the contact pressure is uneven, the contact resistance between the moving and static contacts is very different, and the arc temperature generated when large current is interrupted is also different. The same arc extinguishing structure will naturally have a poor arc extinguishing process and effect for abnormally high arc temperatures.

[0083] See also Figure 7 , which shows a bipolar circuit structure diagram of the switch described in the embodiment of the present application. Figure 7 As shown, in the two-pole circuit used in the switch, before the moving contact rotates, the moving and static contacts are separated, and the circuit is in an open state; after the moving contact rotates, the spring structure begins to play a role, and the moving and static contacts continuously exert contact pressure on the static contact from the beginning of contact to the moving contact, and the circuit is in a closed state. The same is true for the four-pole circuit.

[0084] Therefore, the present application improves and optimizes the spring structure of the moving contact in the leakage switch, and simultaneously realizes the positioning, limiting and coordination of the moving contact movement to compress energy storage and provide thrust through only one spring part, which not only ensures that the moving contact can generate sufficient contact pressure, but also enhances the ability of the moving contact to cooperate in breaking the short-circuit current of the circuit; the spring structure is simple and easier to install, which greatly improves the assembly efficiency.

[0085] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A spring structure used for the rotation of a switch contact, characterized in that: The switch contact is a rotating contact, which is arranged in the rotating shaft of the switch; the spring structure includes: a first pressing end, pressed into a first position in the internal space of the rotating shaft after receiving a force; A first pressing guide portion, connected to the first pressing end, plays a guiding role when the first pressing end is pressed into a first position in the internal space of the rotating shaft; A second pressing end, pressed into a second position in the internal space of the rotating shaft after receiving a force; A second pressing guide portion, connected to the second pressing end, plays a guiding role when the second pressing end is pressed into the second position of the internal space of the rotating shaft; The spring spiral coil has two ends connected to the first press-in end and the second press-in end respectively; a clamping part is provided at the connection between the spring spiral coil and the first press-in end, and the clamping part is clamped into the clamping part of the internal space of the switch contact.

2. The spring structure according to claim 1, characterized in that: The force applied to the first pressing end and the second pressing end refers to the process in which the switch contact rotates into the inner space of the rotating shaft.

3. The spring structure according to claim 2, characterized in that: The internal space of the rotating shaft includes a slot; The switch contact is rotated into the clamping groove of the rotating shaft from one side to the other side through a boss.

4. The spring structure according to claim 1, characterized in that: The internal space of the rotating shaft includes a square groove; The first pressing end is pressed into a first position of the square groove of the rotating shaft after being subjected to force, and the second pressing end is pressed into a second position of the square groove of the rotating shaft after being subjected to force.

5. The spring structure according to claim 4, characterized in that: After the first pressing end is subjected to force, the first pressing guide portion is used as a fixed guide to press into the first position of the square groove of the rotating shaft until the spring spiral coil is pressed into the convex bump with an undercut on the rotating shaft; After the second pressing end is subjected to force, the second pressing guide portion serves as a fixed guide and is pressed into the second position of the square groove of the rotating shaft; The engaging portion of the spring spiral coil is engaged with the engaging portion of the inner space of the switch contact, thereby tightening the switch contact.

6. The spring structure according to claim 1, characterized in that: The first press-in end and the second press-in end both include a right-angle structure for press-in.

7. The spring structure according to claim 1, characterized in that: The first press-in guide portion and the second press-in guide portion both include a straight arm structure for guiding.

8. A switch, characterized in that: The switch comprises: the spring structure according to any one of claims 1-7.

9. The switch according to claim 8, characterized in that The switch contact is a moving contact; The moving contact is arranged in the rotating shaft of the switch, and the spring structure is pressed into and clamped between the moving contact and the rotating shaft by being subjected to force.

10. The switch according to claim 9, characterized in that: The switch is arranged in a two-pole circuit and a four-pole circuit, and the two moving contacts in the two-pole circuit and the four moving contacts in the four-pole circuit are kept in the same position before and after rotation.

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