Double-gate thyristor clamping device
By designing a dual-gate thyristor clamping device, utilizing rack and pinion drive and elastic connection, the problem of unstable clamping during dual-gate thyristor testing was solved, achieving stable clamping and flipping, and improving the convenience and reliability of testing.
Patent Information
- Application Number
- CN202423270729.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the existing technology, the testing of dual-gate thyristors requires flipping, but there is a lack of effective clamping devices to stably clamp and flip the thyristors, which makes the testing inconvenient.
A dual-gate thyristor clamping device was designed, comprising a drive assembly and an auxiliary assembly. Through rack and pinion transmission and elastic connection, it achieves stable clamping and flipping of the thyristor, preventing it from loosening and falling off.
This technology enables stable clamping and flipping of thyristors, simplifies the testing process, avoids damage and loosening caused by excessive clamping force, and improves the stability and convenience of testing.
Smart Images
Figure CN223742541U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to thyristor detection technical field especially relates to a double gate thyristor clamping device. BACKGROUND
[0002] Thyristor is also called silicon controlled rectifier, and is a PNPN four-layer semiconductor structure, which has three poles: anode, cathode and gate; the working condition of the thyristor is that a forward voltage is added and the gate has a trigger current; the derived devices of the thyristor include fast thyristor, bidirectional thyristor, reverse-conducting thyristor, gate turn-off thyristor, BTG thyristor, temperature-controlled thyristor and light-controlled thyristor. At present, the thyristor may appear open circuit and breakdown failure during production and use, and usually needs to be detected for failure, and the common way is to use a multimeter to detect the positive and negative resistance values between the pins of the thyristor.
[0003] In view of the above technical problems, Chinese patent announcement number: CN218767218U, a detection device for thyristor production, including a multimeter, which has two table pens for detecting the thyristor; the base is provided with three clamping grooves matched with the table pen; the auxiliary supporting mechanism includes a support, a supporting plate and a clamping piece, the support is arranged on the base, the supporting plate is slidably arranged on the support, and the clamping piece is arranged on the supporting plate and used for clamping the thyristor; three pads, three pads are arranged at equal intervals on the base, and the pads are located at the bottom of the clamping piece, the application can avoid the sliding of the thyristor by using the multimeter, the base, the support, the supporting plate and the clamping piece, so that the contact between the multimeter pen and the thyristor pin is more stable, the detection effect is guaranteed, and the detection process is convenient, simple and convenient.
[0004] In the above scheme, the thyristor is only clamped by the simple clamping piece, but in the detection of the double gate thyristor, the two surfaces of the thyristor often need to be detected, so the thyristor needs to be turned over for further detection.
[0005] Therefore, a double gate thyristor clamping device is provided. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing a double gate thyristor clamping device to solve the problems in the background art.
[0007] To achieve the above object, the utility model provides the following technical scheme: a double gate thyristor clamping device, including the base, the base one side vertical fixed support, its characterized in be, the support one side rotationally arranged with the casing, the casing is away from the one end of support and is provided with clamping assembly, the casing middle part slidingly connected with the drive assembly for driving clamping assembly to the thyristor clamping,
[0008] The one end of drive assembly is away from casing and is slidingly connected with support, when drive assembly slides to the outside of casing, drive assembly drives clamping assembly to be close to each other, the drive assembly is provided with the auxiliary assembly for preventing loosening when rotating clamping assembly, one end of auxiliary assembly is fixedly connected with support, the one end of auxiliary assembly is away from support and is rotationally connected with the inner wall of casing, auxiliary assembly and drive assembly correspond to cooperate, when casing rotates, auxiliary assembly drives drive assembly to be away from casing, further drive clamping assembly to be close to each other.
[0009] Preferably, the clamping assembly is divided into upper clamping assembly and lower clamping assembly, the upper clamping assembly and lower clamping assembly are completely same, and are mutually symmetrical.
[0010] Preferably, the upper clamping assembly includes a second rack, the second rack is vertically slid through the upper end of the casing, the second rack is slidably provided with an adjusting assembly for adapting to different sizes of thyristors, the one end of the adjusting assembly is extended out of the casing, two groups of parallel clamping plates are slidably connected below the side of the adjusting assembly extended out of the casing, and the upper end of the clamping plate is elastically connected with the adjusting assembly.
[0011] Preferably, the adjusting assembly includes an adjusting plate, the adjusting plate is rotationally connected with the inner wall of the second rack, the lower side of the adjusting plate extended out of the casing is elastically slidably connected with the clamping plate, and one end of the adjusting plate located in the second rack is vertically screwedly connected with a threaded rod, and the threaded rod is vertically penetrated through the second rack upwards.
[0012] Preferably, the drive assembly includes a first rack, the first rack is horizontally slid in the middle part of the casing, the one end of the first rack close to the support is slid through the casing, the upper and lower ends of the one side of the first rack located in the casing are toothed, the connecting block is vertically fixed on the side of the first rack extended out of the casing, the sliding block is horizontally slid in the connecting block, the one end of the sliding block close to the casing is elastically connected with the inner wall of the connecting block, the one end of the sliding block close to the support is horizontally fixed with a telescopic rod, the one end of the telescopic rod located in the support is electrically connected with the motor, and the side of the support is fixed with the motor.
[0013] Preferably, the connecting block is slid through a limiting rod in the vertical direction, one end of the limiting rod is elastically connected with the outer side wall of the connecting block, and the other end of the limiting rod is in contact with the side of the sliding block close to the shell.
[0014] Preferably, the bracket is vertically rotatably connected with a disc close to the side wall of the shell, and the telescopic rod is horizontally slid through the disc.
[0015] Preferably, the shell is rotatably connected with two groups of symmetrical gears, the gears are located on the side of the second rack close to the bracket, the lower side of the second rack close to the bracket is in mesh with the gears, the middle of the gears is in mesh with the driving assembly, and the upper and lower ends of the first rack are in mesh with the gears.
[0016] Preferably, the auxiliary assembly comprises a fixing rod, the fixing rod is slidably connected with the first rack, one end of the fixing rod is rotatably connected with the inner wall of the shell, the other end of the fixing rod is sequentially connected with the connecting block, the sliding block, the disc and the inner wall of the bracket away from the shell, a spiral block is fixed on one side of the inner wall of the fixing rod, a circular rod is vertically fixed on the end of the inner wall of the first rack away from the sliding block, the circular rod and the spiral block are corresponding to each other, and the spiral block has a gap in the vertical direction, and the circular rod and the spiral block are away from each other when the clamping plate is in a relaxed state.
[0017] The utility model discloses a beneficial effect:
[0018] 1. The utility model discloses a fixing rod one end is fixedly connected with the bracket, and the other end is rotatably connected with the inner wall of the shell, so that the shell can be turned over in the detection process, and the operation is simple, simultaneously, setting the rack drive, when the first rack moves to the shell outward, the second rack drives the clamping plate to be close to each other.
[0019] 2. The utility model discloses a threaded rod and adjusting plate are matched with each other, so that the clamping plate can be suitable for different size thyristor, and the clamping plate and adjusting plate are elastically connected, avoid the clamping plate when the thyristor is clamped and the force is too big and damage the thyristor, simultaneously, through the limiting rod and limit the movement of the sliding block, avoid the overall overturning due to the weight of the thyristor itself, and maintain the stability of the clamping state.
[0020] 3. The utility model discloses a spiral block is set up on the fixed rod, and the circular rod in the first rack is matched with each other, when the shell is turned over, so that the circular rod is slid under the action of the spiral block to the direction of the bracket, drives two adjusting plates to be close to each other, under the elasticity, drive the clamping plate to further clamp the thyristor, prevent the clamping plate from loosening and the thyristor from falling when turning over. DRAWINGS
[0021] In order to make the technical scheme of the utility model or the prior art clearer, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only the utility model, and other drawings can be obtained according to these drawings without creative labor for the ordinary skilled in the art.
[0022] Figure 1 It is the overall three-dimensional schematic view of the double-gate thyristor clamping device of the utility model embodiment.
[0023] Figure 2 It is the main body internal structure view of the double-gate thyristor clamping device of the utility model embodiment.
[0024] Figure 3 It is the double-gate thyristor clamping device of the utility model embodiment. Figure 2 It is the structure enlarged view of the middle A.
[0025] Figure 4 It is the double-gate thyristor clamping device of the utility model embodiment. Figure 2 It is the section view schematic view of the middle B.
[0026] Figure 5 It is the double-gate thyristor clamping device of the utility model embodiment. Figure 2 It is the section view schematic view of the middle C.
[0027] Figure 6 It is the double-gate thyristor clamping device of the utility model embodiment. Figure 3 It is the structure schematic view of the clamping assembly of the middle.
[0028] In the drawing, the marks are as follows: 1, base; 2, support; 3, motor; 4, disc; 5, telescopic rod; 6, connecting block; 7, sliding block; 8, shell; 9, first rack; 10, fixed rod; 11, gear; 12, second rack; 13, adjusting plate; 14, clamping plate; 15, threaded rod; 16, round rod; 17, spiral block; 18, limiting rod. DETAILED DESCRIPTION
[0029] In order to make the technical scheme of the utility model or the prior art clearer, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only the utility model, and other drawings can be obtained according to these drawings without creative labor for the ordinary skilled in the art.
[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the general meaning by those skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0031] Please refer to Figures 1 to 6 The utility model provides a technical scheme: a double gate electrode thyristor clamping device, including base 1, one side of base 1 is vertically fixed with support 2, one side of support 2 is rotationally provided with shell 8, one end of shell 8 is away from support 2 and is provided with clamping assembly, the middle part of shell 8 is slidably connected with the drive assembly for driving clamping assembly to clamp thyristor, the drive assembly is transmission connection with clamping assembly, one end of drive assembly is away from shell 8 and is slidably connected with support 2, when drive assembly slides outwards shell 8, drive assembly drives clamping assembly to approach each other, the drive assembly is provided with auxiliary assembly for preventing clamping assembly from loosening when rotating, one end of auxiliary assembly is fixedly connected with support 2, one end of auxiliary assembly is away from support 2 and is rotationally connected with the inner wall of shell 8, auxiliary assembly and drive assembly correspondingly cooperate, when shell 8 rotates, auxiliary assembly drives drive assembly to be away from shell 8, and then drives clamping assembly to further approach each other.
[0032] In actual use process, in the initial state, clamping assembly is away from each other, and drive assembly is located in shell 8, and auxiliary assembly and drive assembly are away from each other;When needing to clamp thyristor, the thyristor is placed in the middle of clamping assembly, and drive assembly is moved outwards shell 8, drive assembly drives clamping assembly to clamp the thyristor, at the same time, drive assembly and auxiliary assembly correspond to each other, shell 8 is turned over, auxiliary assembly drives drive assembly to continue moving outwards shell 8, and drives clamping assembly to approach each other, and further clamps, to prevent loosening of clamping when turning over, and the thyristor falls off, after turning over, return to the clamping state before turning over;When needing to take down the thyristor, drive assembly is moved inwards shell 8, and drives clamping assembly to be away from each other, and the clamping effect of clamping assembly on the thyristor is released.
[0033] As an embodiment of the utility model, Figures 1-2 ,Figures 5-6 As shown in the figure, the clamping assembly is divided into upper clamping assembly and lower clamping assembly, the upper clamping assembly and the lower clamping assembly are completely same and symmetrical with each other, the upper clamping assembly comprises a second rack 12, the second rack 12 vertically slides through the upper end of the shell 8, an adjusting assembly for adapting different size thyristors is slidably arranged in the second rack 12, the adjusting assembly extends out of the shell 8 from one end away from the support 2, two groups of parallel clamping plates 14 are slidably connected below the side of the adjusting assembly extending out of the shell 8, the clamping surface of the clamping plate 14 is increased, so that the clamping plate 14 is more stable when clamping the thyristor, and the upper end of the clamping plate 14 is elastically connected with the adjusting assembly.
[0034] As an embodiment of the utility model, as shown in the figure, Figures 1-2 , Figures 5-6 As shown in the figure, the adjusting assembly comprises an adjusting plate 13, the adjusting plate 13 is rotationally connected with the inner wall of the second rack 12, the lower side of the adjusting plate 13 extending out of the shell 8 is elastically slidably connected with the clamping plate 14, and one end of the adjusting plate 13 located in the second rack 12 is vertically screwedly connected with a threaded rod 15, the threaded rod 15 vertically penetrates the second rack 12 upwards, when the threaded rod 15 is rotated, the adjusting plate 13 slides up and down in the second rack 12, and the clamping plate 14 can be driven to clamp the thyristor of different sizes.
[0035] In actual use, before clamping the thyristor, the threaded rod 15 is rotated, the adjusting plate 13 slides up and down in the second rack 12, and the clamping plate 14 is driven to clamp the thyristor of different sizes; when the thyristor needs to be detected, the thyristor is elastically clamped through the elastic action between the clamping plate 14 and the adjusting plate 13, so that the clamping plate 14 does not damage the thyristor when clamping the thyristor.
[0036] As an embodiment of the utility model, as shown in the figure, Figures 1-4 As shown in the figure, the driving assembly comprises a first rack 9, the first rack 9 horizontally slides in the middle of the shell 8, one end of the first rack 9 close to the support 2 slides through the shell 8, the upper and lower ends of one side of the first rack 9 located in the shell 8 are both toothed, a connecting block 6 is vertically fixed on the side of the first rack 9 extending out of the shell 8, a sliding block 7 horizontally slides in the connecting block 6, one end of the sliding block 7 close to the shell 8 is elastically connected with the inner wall of the connecting block 6, a telescopic rod 5 is horizontally fixed on one end of the sliding block 7 close to the support 2, one end of the telescopic rod 5 away from the sliding block 7 is slidably connected with the support 2, a motor 3 is fixed on the side of the support 2, and one end of the telescopic rod 5 located in the support 2 is electrically connected with the motor 3.
[0037] As an embodiment of the utility model, as shown in the figure, Figures 1-4As shown in the figure, the connecting block 6 is vertically slid through the connecting limiting rod 18, one end of the limiting rod 18 is elastically connected with the outer wall of the connecting block 6, and the other end of the limiting rod 18 is in contact with the side of the sliding block 7 close to the shell 8.
[0038] As an embodiment of the utility model, as shown in the figure, Figures 1-4 As shown in the figure, the bracket 2 is vertically rotatably connected with the disc 4 on the side wall close to the shell 8, and the telescopic rod 5 is horizontally slid through the disc 4.
[0039] As an embodiment of the utility model, as shown in the figure, Figures 1-4 As shown in the figure, the shell 8 is rotatably connected with two groups of symmetrical gears 11, the gears 11 are located on the side of the second rack 12 close to the bracket 2, the second rack 12 is meshed with the gears 11 below the side close to the bracket 2, the gears 11 are meshed with the driving assembly in the middle, and the first rack 9 is meshed with the gears 11 at the upper and lower ends.
[0040] In actual use, in the initial state, the first rack 9 is completely inserted into the shell 8, the second rack 12 is located at the end away from the first rack 9, the sliding block 7 is located at the end of the connecting block 6 away from the shell 8, and the limiting rod 18 is in contact with the side of the sliding block 7 close to the shell 8; when the thyristor needs to be clamped, the thyristor is placed between the two clamping plates 14, the motor 3 is started, the telescopic rod 5 is driven away from the shell 8, the first rack 9 is driven to slide out of the shell 8 through the sliding block 7, the gears 11 are driven to rotate, the second rack 12 is driven to approach each other, and the two clamping plates 14 are driven to elastically clamp the thyristor, at this time, the movement of the sliding block 7 is limited by the limiting rod 18, so that the whole is prevented from overturning due to the weight of the thyristor, and the stability of the clamping state is maintained; when the thyristor needs to be turned over, the limiting rod 18 is pulled out, so that the limiting rod 18 is separated from the sliding block 7, at this time, the shell 8 is turned over, the whole is driven to turn over, the first rack 9 is turned over with the shell 8 through the disc 4, until the first rack 9 is turned over by 180 degrees, the limiting rod 18 is loosened, the limiting rod 18 is in contact with the sliding block 7 again, and the stability of the clamping state is maintained; when the thyristor needs to be taken down, the motor 3 is started again, the telescopic rod 5 is driven to be close to the shell 8, the first rack 9 is driven to slide into the shell 8 through the sliding block 7, the second rack 12 is driven to be away from each other, and the clamping state of the clamping plate 14 is released.
[0041] As an embodiment of the utility model, as shown in the figure, Figures 1-4As shown, the auxiliary assembly comprises a fixed rod 10 which is in sliding fit with the first rack 9, one end of the fixed rod 10 is rotatably connected with the inner wall of the shell 8, the other end of the fixed rod 10 penetrates the connecting block 6, the sliding block 7, the disc 4 in sequence and is fixedly connected with the inner wall of the support 2 away from the shell 8, the spiral block 17 is fixed on one side of the inner wall of the fixed rod 10, the vertical circular rod 16 is fixed on the end of the inner wall of the first rack 9 away from the sliding block 7, the circular rod 16 and the spiral block 17 correspond to each other, the spiral block 17 has a gap in the vertical direction, when the clamping plates 14 are in the relaxed state, the circular rod 16 and the spiral block 17 are away from each other, when the two groups of clamping plates 14 clamp each other, the circular rod 16 and the gap of the spiral block 17 correspond to each other, rotating the shell 8, the circular rod 16 slides to the direction of the support 2 under the action of the spiral block 17, drives the two groups of adjusting plates 13 to approach each other, under the elastic action, drives the clamping plates 14 to further clamp the thyristor, prevents the clamping plates 14 from loosening and the thyristor from falling off when overturning.
[0042] Working principle: in the initial state, the first rack 9 is fully inserted into the shell 8, the second rack 12 is located at one end away from the first rack 9, the sliding block 7 is located at one end of the connecting block 6 away from the shell 8, the limiting rod 18 is in contact with the side of the sliding block 7 close to the shell 8, and the round rod 16 is away from the spiral block 17; when the thyristor needs to be clamped, the threaded rod 15 is adjusted to the appropriate position according to the size of the thyristor, the thyristor is placed between the two clamping plates 14, the motor 3 is started, the telescopic rod 5 is driven away from the shell 8, the first rack 9 is driven to slide out of the shell 8, the second rack 12 is driven to approach each other through the gear 11, the two clamping plates 14 clamp the thyristor elastically, so that the clamping plate 14 does not damage the thyristor when clamping the thyristor, the round rod 16 is matched with the spiral block 17 at this time, the limiting rod 18 limits the movement of the sliding block 7, so that the whole is not turned over due to the weight of the thyristor, and the stability of the clamping state is maintained; when the thyristor needs to be turned over, the limiting rod 18 is pulled out, the shell 8 is turned over, the whole is turned over, since the fixed rod 10 is stationary, under the action of the spiral block 17, the round rod 16 slides to the direction of the support 2, the first rack 9 slides to the direction of the support 2, the sliding block 7 slides to the inside of the connecting block 6, the two groups of adjusting plates 13 approach each other, under the action of elasticity, the clamping plate 14 further clamps the thyristor, so that the clamping plate 14 does not loosen during turning over, and the thyristor does not fall off, until the shell 8 is turned over by 180 degrees, the round rod 16 is disengaged from the spiral block 17 again, under the action of the spring, the sliding block 7 approaches the shell 8, the limiting rod 18 is loosened, so that the limiting rod 18 and the sliding block 7 are in contact again, and the stability of the clamping state is maintained; when the thyristor needs to be taken down, the motor 3 is started again, the telescopic rod 5 approaches the shell 8, the first rack 9 slides into the shell 8 through the sliding block 7, the second rack 12 moves away from each other, and the clamping state of the clamping plate 14 is released.
[0043] Those skilled in the art will understand that the above discussion of any embodiment is merely exemplary and is not intended to suggest the scope (including the claims) of the present application is limited to these examples; under the thought of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.
[0044] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications and variations are intended to be encompassed by the appended claims.
Claims
1. A double-gate thyristor clamping device, comprising a base (1), one side of which is vertically fixed with a support (2), characterized in that, One side of the support (2) is rotatably provided with a shell (8), one end of the shell (8) away from the support (2) is provided with a clamping assembly, a driving assembly for driving the clamping assembly to clamp the thyristor is slidably connected to the middle of the shell (8), the driving assembly is in transmission connection with the clamping assembly, One end of the driving assembly away from the shell (8) is slidably connected with the support (2), when the driving assembly slides out of the shell (8), the driving assembly drives the clamping assembly to approach each other, the driving assembly is provided with an auxiliary assembly for preventing the clamping assembly from loosening when rotating, one end of the auxiliary assembly is fixedly connected with the support (2), one end of the auxiliary assembly away from the support (2) is rotatably connected with the inner wall of the shell (8), the auxiliary assembly is correspondingly matched with the driving assembly, when the shell (8) rotates, the auxiliary assembly drives the driving assembly away from the shell (8), and further drives the clamping assembly to further approach.
2. A device for clamping a bidirectional triac according to claim 1, characterized in that The clamping assembly is divided into upper clamping assembly and lower clamping assembly, the upper clamping assembly and the lower clamping assembly are completely same and mutually symmetrical.
3. A device according to claim 2, characterized in that The upper clamping assembly comprises a second rack (12), the second rack (12) vertically slides through the upper end of the shell (8), an adjusting assembly for adapting different sizes of thyristors is slidably arranged in the second rack (12), one end of the adjusting assembly away from the support (2) extends out of the shell (8), two groups of parallel clamping plates (14) are slidably connected below one side of the adjusting assembly extending out of the shell (8), and the upper end of the clamping plate (14) is elastically connected with the adjusting assembly.
4. A device according to claim 3, characterized in that The adjusting assembly comprises an adjusting plate (13), the adjusting plate (13) is rotatably connected with the inner wall of the second rack (12), the lower side of the adjusting plate (13) extending out of the shell (8) is elastically slidably connected with the clamping plate (14), and one end of the adjusting plate (13) located in the second rack (12) is vertically screwedly connected with a threaded rod (15), and the threaded rod (15) vertically penetrates the second rack (12) upward.
5. A device for clamping a bidirectional triac according to claim 4, characterized in that The driving assembly comprises a first rack (9), the first rack (9) horizontally slides in the middle of the shell (8), one end of the first rack (9) close to the support (2) slides through the shell (8), the upper and lower ends of one side of the first rack (9) located in the shell (8) are toothed, a connecting block (6) is vertically fixed to one side of the first rack (9) extending out of the shell (8), a sliding block (7) horizontally slides in the connecting block (6), one end of the sliding block (7) close to the shell (8) is elastically connected with the inner wall of the connecting block (6), one end of the sliding block (7) close to the support (2) is horizontally fixed with a telescopic rod (5), one end of the telescopic rod (5) away from the sliding block (7) is slidably connected with the support (2), and the side of the support (2) is fixed with a motor (3), and one end of the telescopic rod (5) located in the support (2) is electrically connected with the motor (3).
6. A device for clamping a bidirectional triac according to claim 5, characterized in that The connecting block (6) is vertically slid through a limiting rod (18), one end of the limiting rod (18) is elastically connected with the outer wall of the connecting block (6), and the other end of the limiting rod (18) is in contact with the side of the sliding block (7) close to the shell (8).
7. A device for clamping a bidirectional triac according to claim 6, characterized in that The bracket (2) is vertically rotatably connected with a disc (4) on the side wall close to the shell (8), and the telescopic rod (5) is horizontally slid through the disc (4).
8. A device for clamping a bidirectional triac according to claim 7, characterized in that The shell (8) is rotatably connected with two groups of upper and lower symmetrical gears (11), the gears (11) are located on the side of the second rack (12) close to the bracket (2), the lower side of the second rack (12) close to the bracket (2) is in meshing with the gears (11), the middle of the gears (11) is in meshing with the driving assembly, and the upper and lower ends of the first rack (9) are in meshing with the gears (11).
9. A device for clamping a bidirectional triac according to claim 8, characterized in that The auxiliary assembly comprises a fixed rod (10), the fixed rod (10) is slidably connected with the first rack (9), one end of the fixed rod (10) in the shell (8) is rotatably connected with the inner wall of the shell (8), the other end of the fixed rod (10) away from the shell (8) is sequentially penetrated through the connecting block (6), the sliding block (7), the disc (4) and fixedly connected with the inner wall of the bracket (2) away from the shell (8), one side of the fixed rod (10) located in the inner wall of the first rack (9) is fixedly connected with a spiral block (17), one end of the inner wall of the first rack (9) away from the sliding block (7) is vertically fixedly connected with a round rod (16), the round rod (16) and the spiral block (17) are corresponding to each other, the spiral block (17) has a gap in the vertical direction, and the round rod (16) and the spiral block (17) are away from each other when the clamping plate (14) is in a relaxed state.