Filament clamping and self-adjusting device

Abstract

The utility model relates to a filament clamping and self-adjusting device, which is characterized in that a filament clamping structure is designed into an independently assembled and disassembled module, a third countersunk head through hole and a fixing bolt are arranged at the bottom of a base, and the base and a charged particle source device are installed together. The filament clamping and self-adjusting device can be quickly separated from the charged particle source device, so that the filament is prevented from being broken in the disassembly and assembly process; a first mounting seat and a second mounting seat are arranged at the two ends of a base, a fixing part and a first end for fixing a lamp filament are arranged on the first mounting seat, an adjusting part and a second end for fixing the lamp filament are arranged on the second mounting seat, and a rebound piece and an elastic piece are arranged on the adjusting part, so that prestress is generated when the lamp filament is fixed by the fixing part and the adjusting part; when the filament is electrified or heated to extend, the rebound sheet automatically rebounds, so that the filament is always kept in a proper tensioning state, the filament is prevented from drooping due to extension and being in contact with other metals to cause short circuit, the service life of the filament is prolonged, and the stability of the filament is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filament fixing technical field, especially a filament clamping and self -adjusting device. BACKGROUND

[0002] In various application occasions needing to generate space electrons, such as current neutralization, electron beam heating, plasma generation, etc., the filament thermal emission (electron) mode is a simple, easy-to-control and low-cost electron supply mode. The thermal emission (electron) filament is fixed on the device through the conductive and clamping mechanism, and a large current (up to 5 amperes or more) passes through the filament to generate enough energy for the electrons on the surface of the filament to escape. Because a large number of space electrons need to be generated, the filament temperature is very high, which leads to its extension and sagging. In the arrangement of compact components, the sagging filament is easy to contact other metals to cause short circuit, damaging the components.

[0003] In the application field of electric neutralization, the filament is usually installed together with the charged particle source device. In some application occasions, such as ion etching, sputtering, etc., the pollution area and amplitude (thickness) of the device are large and fast, which leads to the device needing to be cleaned frequently. When troubleshooting or maintenance each time, even if only other parts are replaced, the unbroken filament is also easy to break during disassembly and assembly after heat aging. Therefore, other parts and the filament need to be replaced at the same time, which leads to the replacement process often wasting the still complete filament, and also prolongs the maintenance time and increases the work difficulty. SUMMARY

[0004] Therefore, it is necessary to provide a filament clamping and self-adjusting device to solve the problem that the current filament length increases when a large current is passed or heated, which easily leads to sagging and further contact with other metals to cause short circuit, and to improve the service life of the filament and the stability of the device.

[0005] The technical scheme for solving the above technical problems of the utility model is as follows: a filament clamping and self-adjusting device, comprising: a base, a fixed part and an adjusting part, the base is provided with a first mounting seat and a second mounting seat at both ends respectively, the fixed part is arranged above the first mounting seat and is used for fixing the first end of the filament, the adjusting part is arranged on the upper end of the second mounting seat, the adjusting part comprises a second power connection block, a connecting plate, a rebounding piece, an elastic piece and a fixing piece, the connecting plate is fixed on the side wall of the second power connection block away from the fixed part, one end of the side wall of the connecting plate away from the second power connection block is provided with a flange, the flange is fixedly connected with one end of the rebounding piece, the elastic piece is arranged between the connecting plate and the rebounding piece, the fixing piece is arranged at the other end of the rebounding piece and is used for fixing the second end of the filament, and the fixing part is arranged opposite to the fixed part.

[0006] In one embodiment, one end of the elastic member is fixed to the middle of the side wall of the coupling plate near the rebound sheet, and the other end is in abutment with the side wall of the rebound sheet.

[0007] In one embodiment, the elastic member is a compression spring.

[0008] In one embodiment, the fixing member includes a wire clamping upper plate and a wire clamping lower plate, the wire clamping lower plate is fixedly connected with the rebound sheet, the wire clamping upper plate is fixed to the upper end face of the wire clamping lower plate, and the second end of the filament is fixed between the wire clamping upper plate and the wire clamping lower plate.

[0009] In one embodiment, the fixing part includes a first power connection block and a clamping member, the first power connection block is fixed above the first mounting seat, the bottom of the first power connection block is provided with a recess for placing an insulating block, both side end faces of the first power connection block are provided with a plurality of screw holes, and the clamping member is fixed to the side wall of the first power connection block.

[0010] In one embodiment, the clamping member includes a pressing plate and a cantilever, one end of the cantilever is fixedly connected with the first power connection block, the other end of the cantilever extends to the front side of the base, the upper end face of the cantilever is provided with a mounting groove, the pressing plate is fixed in the mounting groove, the bottom of the pressing plate is provided with a pressing groove away from the first power connection block, and the bottom of the pressing groove is fixedly connected with the upper end face of the cantilever to fix the filament.

[0011] In one embodiment, the first mounting seat is provided with a first countersunk hole and a second countersunk hole, the first countersunk hole and the second countersunk hole are respectively provided with insulating first and second connecting blocks, the first countersunk hole is provided with a conductive rod, the conductive rod is fixedly connected with the first connecting block, the second countersunk hole is provided with a connecting bolt, the connecting bolt is fixedly connected with the second connecting block, and the upper end of the connecting bolt is threadedly connected with the first power connection block through an insulating block arranged above the second countersunk hole.

[0012] In one embodiment, the side wall of the conductive rod is provided with a fixing protrusion, the length of the conductive rod is greater than the height of the first mounting seat, the upper end of the conductive rod is connected with the first power connection block, the bottom of the conductive rod extends below the bottom face of the base, the lower end of the conductive rod is provided with a power connection hole for connecting with a power plug, and the base and the fixing part and the base and the adjusting part are at different potentials.

[0013] In one embodiment, the second mounting seat has the same structure as the first mounting seat, and the second mounting seat is symmetrically arranged with the first mounting seat.

[0014] In one embodiment, the middle of the base is provided with a plurality of third countersunk holes, and the third countersunk holes are provided with fixing bolts.

[0015] The lamp filament clamping and self-adjusting device has the advantages that the structure for clamping the lamp filament is designed as a module which can be independently assembled and disassembled, the third countersunk head through hole and the fixing bolt are arranged at the bottom of the base, and the lamp filament clamping and self-adjusting device and the charged particle source device are installed together, so that the lamp filament clamping and self-adjusting device can be quickly separated from the charged particle source device during troubleshooting or maintenance, the lamp filament is prevented from being broken during disassembly and assembly, the maintenance efficiency is improved, and the working difficulty is reduced; the first mounting seat and the second mounting seat are arranged at the two ends of the base, the fixing portion is arranged on the first mounting seat and used for fixing the first end of the lamp filament, the adjusting portion is arranged on the second mounting seat and used for fixing the second end of the lamp filament, the elastic piece and the elastic member are arranged on the adjusting portion, the fixing portion and the adjusting portion generate a prestress when the lamp filament is fixed, the elastic piece of the adjusting portion automatically rebounds under the action of the elastic member when the lamp filament is electrified or elongated, the lamp filament is kept in a proper tension state all the time, the lamp filament is prevented from being in contact with other metals due to elongation and causing a short circuit, and the service life and stability of the lamp filament are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0017] Fig. 1 FIG. 1 is a structural schematic view of a lamp filament clamping and self-adjusting device according to an embodiment of the present application;

[0018] Fig. 2 FIG. 4 is a cross-sectional structural schematic view of the base of the lamp filament clamping and self-adjusting device according to an embodiment of the present application;

[0019] Fig. 3 FIG. 6 is an exploded view of the fixing portion of the lamp filament clamping and self-adjusting device according to an embodiment of the present application;

[0020] Fig. 4 FIG. 7 is an exploded view of the adjusting portion of the lamp filament clamping and self-adjusting device according to an embodiment of the present application.

[0021] In the drawings, 10, filament clamping and self-adjusting device; 100, base; 110, third countersunk hole; 120, fixing bolt; 200, first mounting seat; 210, first countersunk hole; 220, conductive rod; 221, power connection hole; 230, second countersunk hole; 240, connecting bolt; 250, insulating block; 260, first connecting block; 270, second connecting block; 300, second mounting seat; 400, fixed part; 410, first power connection block; 420, clamping piece; 421, cantilever; 4211, mounting groove; 422, pressing plate; 4221, pressing groove; 500, adjusting part; 510, second power connection block; 520, coupling plate; 521, flange; 530, rebounding piece; 540, elastic piece; 550, fixing piece; 551, wire clamping upper plate; 552, wire clamping lower plate. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions of the present application will be further described below with reference to the drawings of the embodiments of the present application. The present application is not limited to the following specific embodiments.

[0023] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "top" and "bottom" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present application. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0024] In one embodiment, as Figs. 1 to 4As shown, a filament clamping and self-adjusting device 10 comprises a base 100, a fixing part 400 and an adjusting part 500, the base 100 is provided with a first mounting seat 200 and a second mounting seat 300 at two ends respectively, the fixing part 400 is arranged above the first mounting seat 200 for fixing the first end of the filament, the adjusting part 500 is arranged on the upper end of the second mounting seat 300, the adjusting part 500 comprises a second power connection block 510, a coupling plate 520, a rebounding piece 530, an elastic member 540 and a fixing member 550, the coupling plate 520 is fixed on the side wall of the second power connection block 510 away from the fixing part 400, the end of the coupling plate 520 away from the side wall of the second power connection block is provided with a flange 521, the flange 521 is fixedly connected with one end of the rebounding piece 530, the elastic member 540 is arranged between the coupling plate 520 and the rebounding piece 530, the fixing member 550 is arranged on the other end of the rebounding piece 530 for fixing the second end of the filament, and is arranged opposite to the fixing part 400.

[0025] In the embodiment, the first mounting seat 200 and the second mounting seat 300 are arranged at two ends of the base 100 respectively, the height of the first mounting seat 200 and the second mounting seat 300 is greater than the height of the middle part of the base 100, the fixing part 400 is arranged above the first mounting seat 200 and fixes the first end of the filament, the second power connection block 510 of the adjusting part 500 is fixed above the second adjusting seat, the coupling plate 520 is fixed on the side wall of the second power connection block 510 away from the fixing part 400 through a bolt, the rear side of the side wall of the coupling plate 520 away from the second power connection block 510 is provided with the flange 521, the flange 521 is provided with a through hole, one end of the rebounding piece 530 is connected with the through hole through a bolt, and the end of the bolt is connected with a threaded hole on the side wall of the second power connection block 510 through the through hole, so that one end of the rebounding piece 530 is fixed on the flange 521 and the other end extends to the front of the base 100, the fixing member 550 is arranged on the end of the rebounding piece 530 away from the flange 521 and is arranged opposite to the fixing part 400 for clamping the second end of the filament, the two ends of the elastic member 540 are connected with the coupling plate 520 and the rebounding piece 530 respectively, when the fixing part 400 and the adjusting part 500 clamp and fix the filament, the elastic member 540 is compressed, so that the rebounding piece 530 is subjected to a pre-stress, when a large current is input into the filament or the filament is heated, the length of the filament will increase, the rebounding piece 530 moves in the opposite direction under the action of the elastic member 540, so that the lamp can always maintain in the set tension range, the filament is ensured not to droop due to the increase of the length, the filament is prevented from contacting other metal parts to cause short circuit or open circuit phenomenon, so as to prolong the service life of the filament and improve the stability and safety of the device.

[0026] In one embodiment, one end of the elastic member 540 is fixed to the middle of the side wall of the rebound sheet 530 near the coupling plate 520, and the other end is in abutment with the side wall of the rebound sheet 530. Specifically, a recess is provided in the middle of the side wall of the rebound sheet 530 near the coupling plate 520, one end of the elastic member 540 is fixed in the recess, and the other end is connected with the side wall opposite to the rebound sheet 530 and the coupling plate 520. When the filament is not powered or cooled down, the elastic member 540 is compressed, and when the filament is heated, the elastic member 540 releases the elastic force, resets the rebound sheet 530 and stretches the filament, so that the filament does not sag.

[0027] In one embodiment, the elastic member 540 is a compression spring. Specifically, by setting the elastic member 540 as a compression spring, a stable elastic force is provided for the rebound sheet 530.

[0028] In one embodiment, the fixing member 550 includes a wire clamping upper plate 551 and a wire clamping lower plate 552, the wire clamping lower plate 552 is fixedly connected with the rebound sheet 530, and the wire clamping upper plate 551 is fixed to the upper end surface of the wire clamping lower plate 552, and the second end of the filament is fixed between the wire clamping upper plate 551 and the wire clamping lower plate 552. Specifically, the wire clamping lower plate 552 in the fixing member 550 is fixedly connected with the rebound sheet 530 by a bolt, the wire clamping upper plate 551 is fixed to the top of the wire clamping lower plate 552 by a screw, the lower end surface of the wire clamping upper plate 551 and the upper end surface of the wire clamping lower plate 552 are both smooth planes, and the second end of the filament is clamped between the two planes to keep the filament stable.

[0029] In one embodiment, the fixing part 400 includes a first power connection block 410 and a clamping member 420, the first power connection block 410 is fixed above the first mounting seat 200, the bottom of the first power connection block 410 is provided with a recess for placing the insulating block 250, and the two side end surfaces of the first power connection block 410 are each provided with a plurality of screw holes, and the clamping member 420 is fixed to the side wall of the first power connection block 410. Specifically, the first power connection block 410 of the fixing part 400 is arranged above the first mounting seat 200, the bottom of the first power connection block 410 is provided with a recess for connecting with the upper end of the insulating block 250, a connecting through hole is provided on the recess and is threadedly connected with the upper end of the connecting bolt 240, the two side walls of the first power connection block 410 are each provided with a plurality of screw holes for fixedly connecting with the clamping member 420, the clamping member 420 is arranged on the side wall of the first power connection block 410 away from the adjusting part 500, and the clamping member 420 is fixed to the first power connection block 410 by a bolt passing through the clamping member 420 and being connected with the screw hole, so that the end of the filament is fixed by the clamping member 420 to keep the filament in a straight state. In another embodiment, the clamping member 420 can also be arranged on the side wall of the first power connection block 410 near the adjusting part 500 to cause a biasing effect, which can facilitate the adjustment of the position of the filament and enhance the flexibility of the adjustment.

[0030] In one embodiment, the clamping member 420 includes a pressing plate 422 and a cantilever 421, one end of the cantilever 421 is fixedly connected with the first power block 410, the other end of the cantilever 421 extends to the front side of the base 100, the upper end surface of the cantilever 421 is provided with a mounting groove 4211, the pressing plate 422 is fixed in the mounting groove 4211, the bottom of the pressing plate 422 away from the end of the first power block is provided with a pressing groove 4221, and the bottom of the pressing groove 4221 is fixedly connected with the upper end surface of the cantilever 421. Specifically, the rear end of the side wall of the cantilever 421 is fixedly connected with the side wall of the first power block 410 through a bolt, the front end of the cantilever 421 extends to the front side of the base 100, and the mounting groove 4211 is located at the position close to the front end of the upper end surface of the cantilever 421; the front end of the bottom of the pressing plate 422 is provided with an upwardly recessed pressing groove 4221, the pressing groove 4221 extends to the front end surface of the pressing plate 422, the bottom surface of the pressing plate 422 is matched in shape with the mounting groove 4211, and the pressing plate 422 is fixed in the mounting groove 4211 through a bolt, the pressing groove 4221 is attached to the upper end surface of the cantilever 421, and the end of the filament is clamped and fixed by the pressing groove 4221 and the upper end surface of the cantilever 421, so as to prevent loosening.

[0031] In one embodiment, the first mounting seat 200 is provided with a first countersunk hole 210 and a second countersunk hole 230, the first countersunk hole 210 and the second countersunk hole 230 are respectively provided with insulating first and second connecting blocks 260 and 270, the first countersunk hole 210 is provided with a conductive rod 220, and the conductive rod 220 is fixedly connected with the first connecting block 260; the second countersunk hole 230 is provided with a connecting bolt 240, the connecting bolt 240 is fixedly connected with the second connecting block 270, and the upper end of the connecting bolt 240 is threadedly connected with the first power block 410 through an insulating block 250 arranged above the second countersunk hole 230. Specifically, the first mounting seat 200 is provided with the first countersunk hole 210 and the second countersunk hole 230 which are communicated with the upper and lower end surfaces of the first mounting seat 200; the first connecting block 260 is fixed in the first countersunk hole 210, the middle part of the first connecting block 260 is provided with a mounting hole, the conductive rod 220 is arranged in the mounting hole and fixedly connected with the first connecting block 260, so as to fix the conductive rod 220 in the first countersunk hole 210; the structure of the second connecting block 270 in the second countersunk hole 230 is similar to that of the first connecting block 260, the connecting bolt 240 is invertedly fixed in the second countersunk hole 230 and fixedly connected with the second connecting block 270, the end of the connecting bolt 240 extending to the upper side of the first mounting seat 200 is provided with external threads, the upper end of the connecting bolt 240 is threadedly connected with the first power block 410 after penetrating through the insulating block 250 arranged above the second countersunk hole 230, the first mounting seat 200 and the first power block 410 are separated by the insulating block 250 to prevent current leakage and ensure safety.

[0032] In one embodiment, the side wall of the electrically conductive rod 220 is provided with a fixing protrusion, and the length of the electrically conductive rod 220 is greater than the height of the first mounting seat 200. The upper end of the electrically conductive rod is connected with the first electrically connecting block 410, the bottom of the electrically conductive rod 220 extends below the bottom surface of the base 100, and the lower end of the electrically conductive rod 220 is provided with an electrically connecting hole 221 for connecting with a power plug. The base 100 and the fixing part 400 are at different potentials, and the base 100 and the adjusting part 500 are at different potentials. Specifically, the side wall between the upper and lower ends of the electrically conductive rod 220 is provided with a fixing protrusion, which abuts against the bottom of the first connecting block 260. The side wall of the upper end of the electrically conductive rod 220 is provided with an abutting groove for abutting against the bottom of the first electrically connecting block 410. The length of the electrically conductive rod 220 is greater than the height of the first countersunk through hole 210. The upper end of the electrically conductive rod 220 located above the first mounting seat 200 is provided with a fixing hole with internal threads. The upper end of the electrically conductive rod 220 is threadedly connected with a bolt penetrating through the electrically conductive through hole of the first electrically connecting block 410, so that the electrically conductive rod 220 is fixedly connected with the first electrically connecting block 410. The lower end of the electrically conductive rod 220 located below the base 100 is provided with an electrically connecting hole 221, which is tightly connected with the power plug, so as to supply electricity to the electrically conductive rod 220. The base and the fixing part are at different potentials, and the base and the adjusting part are at different potentials, that is, the base is not conductive, and there is a potential difference between the adjusting part and the fixing part, so that the current can flow from one end of the filament to the other end, forming a stable current loop.

[0033] In one embodiment, the structure of the second mounting seat 300 is the same as that of the first mounting seat 200, and the second mounting seat 300 is symmetrically arranged with the first mounting seat 200. Specifically, the structure of the first mounting seat 200 is consistent with that of the second mounting seat 300, that is, the first countersunk through hole 210, the second countersunk through hole 230, the first connecting block 260, the second connecting block 270, the electrically conductive rod 220, the connecting bolt 240 and the insulating block 250 are also arranged in the second mounting seat 300. The connection mode between the second mounting seat 300 and the second electrically connecting block 510 is the same as that between the first mounting seat 200 and the first electrically connecting block 410. The first mounting seat 200 and the second mounting seat 300 are symmetrically arranged on both sides of the base 100, so that the structure is balanced and stable. The insulating blocks arranged between the first mounting seat 200 and the first electrically connecting block 410 and between the second mounting seat 300 and the second electrically connecting block 510 can be designed to have different heights according to design requirements, so that the first electrically connecting block 410 and the second electrically connecting block 510 are not on the same horizontal plane. The filament forms a certain angle with the horizontal plane, so that the base 100 can be installed on the mounting surface not on the same horizontal plane, and the filament can also be kept horizontal, increasing the installation flexibility of the base 100.

[0034] In one embodiment, an intermediate through hole is arranged in the middle of the base 100, between the first mounting seat 200 and the second mounting seat 300, and extends through the front and back sides of the base 100, so that two rod bodies are formed above and below the intermediate through hole, and hands can hold the rod bodies; the two sides of the intermediate through hole are both provided with a third countersunk through hole 110, the third countersunk through hole 110 has a structure of being large at the top and small at the bottom, so that the nut of the fixing bolt 120 is embedded in the inside of the third countersunk through hole 110, the bottom of the fixing bolt 120 extends below the bottom surface of the base 100, and is fixedly connected with the mounting hole on the other equipment, so that the base 100 is firmly fixed on the equipment.

[0035] It is worth noting that the conductive rod 220, the first electric contact block 410, the second electric contact block 510, the cantilever 421, the pressing plate 422, the connecting plate 520, the elastic piece 530, the upper wire clamping plate 551 and the lower wire clamping plate 552 are all made of conductive materials, so that the current can be transmitted from the conductive rod 220 to the filament.

[0036] Compared with the prior art, the utility model has at least the following advantages:

[0037] The filament clamping and self-adjusting device has the advantages that the filament fixing mechanism is designed as a separate module, filament installation and replacement are facilitated, and the filament that has not been broken is prevented from being disconnected in the dismounting process after becoming brittle due to heat aging during troubleshooting or maintenance of the equipment, so that the maintenance time is shortened and the work difficulty is reduced.

[0038] The first mounting seat is provided with a fixing portion at the upper end, the first electric contact block of the fixing portion is connected with the second mounting seat through a connecting bolt, a clamping piece is arranged on the side wall of the first electric contact block and used for fixing the first end of the filament; the second mounting seat is provided with an adjusting portion at the upper end, the second electric contact block of the adjusting portion is connected with the second mounting seat through a connecting bolt, a connecting plate is fixed to the side wall of the second electric contact block, a flange is arranged at one end of the connecting plate, an elastic piece is arranged at the middle portion, one end of the elastic piece is fixedly connected with the flange, and the other end is provided with a fixing piece used for fixing the second end of the filament; the elastic piece is abutted to the side wall of the elastic piece, so that the elastic piece is compressed and generates a prestress when the filament is installed, the filament is elongated when the filament is heated or a large current is input, the elastic piece rebounds in the direction away from the fixing portion under the action of the elastic piece, the fastening state of the filament is maintained, the filament is effectively prevented from being elongated and contacting other components, and the circuit is ensured to be stable.

[0039] In addition, the clamping pieces can be arranged on the side wall of the first power connecting block close to or away from the adjusting part to cause a biasing effect to adapt to different filament length requirements; insulating blocks are arranged between the first mounting seat and the first power connecting block and between the second mounting seat and the second power connecting block, different thicknesses of the insulating blocks are arranged to make the filament form a certain angle with the horizontal plane, so that the device can adapt to the installation environment not in the horizontal plane and installation flexibility is increased.

[0040] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A filament clamping and self-adjusting device, characterized in that, The utility model relates to a lamp filament fixing device, including: The base, fixed part and adjustment part, the both ends of the base are equipped with first mounting seat and second mounting seat respectively, the fixed part sets up the top of first mounting seat for fixing the first end of lamp filament, the adjustment part sets up the top of second mounting seat, the adjustment part includes second electricity -making block, link plate, springback piece, elastic piece and fixed part, the link plate is fixed on the side wall of second electricity -making block away from fixed part, the side wall of link plate one end away from second electricity -making block is equipped with flange, the flange is fixedly connected with one end of springback piece, the elastic piece sets up between link plate and springback piece, the fixed part sets up the other end of springback piece for fixing the second end of lamp filament, and is opposite with fixed part arrangement.

2. The filament clamping and self-adjusting device of claim 1, wherein, One end of the elastic piece is fixed to the middle of the side wall of the link plate close to the springback piece, and the other end abuts against the side wall of the springback piece.

3. The filament clamping and self-adjusting device of claim 2, wherein, The elastic piece is a compression spring.

4. The filament clamping and self-adjusting device of claim 1, wherein, The fixed part includes a first electricity-making block and a clamping member, the first electricity-making block is fixed above the first mounting seat, the bottom of the first electricity-making block is provided with a groove for placing an insulating block, and the side end faces of the first electricity-making block are each provided with a plurality of screw holes.

5. The filament clamping and self-adjusting device of claim 1, wherein, The clamping member includes a pressing plate and a cantilever, one end of the cantilever is fixedly connected with the first electricity-making block, the other end of the cantilever extends to the front side of the base, the upper end face of the cantilever is provided with a mounting groove, the pressing plate is fixed in the mounting groove, the bottom of the pressing plate is provided with a pressing groove away from the first electricity-making block, and the bottom of the pressing groove is fixedly connected with the upper end face of the cantilever to fix the lamp filament.

6. The filament clamping and self-adjusting device of claim 5, wherein, The first mounting seat is provided with a first countersunk hole and a second countersunk hole, the first countersunk hole and the second countersunk hole are respectively provided with insulating first and second connecting blocks, the first countersunk hole is provided with a conductive rod, and the conductive rod is fixedly connected with the first connecting block; the second countersunk hole is provided with a connecting bolt, the connecting bolt is fixedly connected with the second connecting block, and the upper end of the connecting bolt is threadedly connected with the first electricity-making block through an insulating block arranged above the second countersunk hole.

7. The filament clamping and self-adjusting device of claim 6, wherein, The side wall of the conductive rod is provided with a fixing protrusion, the length of the conductive rod is greater than the height of the first mounting seat, the upper end of the conductive rod is connected with the first electricity-making block, the bottom of the conductive rod extends below the bottom surface of the base, the lower end of the conductive rod is provided with an electricity-making hole for connecting with a power plug, and the base and the fixed part and the base and the adjustment part are at different potentials.

8. The filament clamping and self-adjusting device of claim 7, wherein, The second mounting seat has the same structure as the first mounting seat, and the second mounting seat is symmetrically arranged with the first mounting seat.

9. The filament clamping and self-adjusting device of claim 8, wherein, The middle of the base is provided with a plurality of third countersunk holes, and the third countersunk holes are provided with fixing bolts.

10. The filament clamping and self-adjusting device of claim 1, wherein, ​

Images