IGBT device for industrial sewing machine

Abstract

The invention discloses an IGBT (Insulated Gate Bipolar Translator) device for an industrial sewing machine, which comprises a connecting mechanism, an IGBT device mechanism and mounting mechanisms, the IGBT device mechanism sleeves the top of the connecting mechanism, the mounting mechanisms are fixedly connected to the front side and the rear side of the top of the IGBT device mechanism, and each mounting mechanism comprises two mounting boxes; a first motor is fixedly connected to the outer side of an inner cavity of the mounting box, a worm is fixedly connected to the output end of the first motor, worm wheels are movably connected to the two sides of the bottom of the inner cavity of the mounting box through bearings, the inner sides of the worm wheels are meshed with the worm, a rotating pin is fixedly connected to the outer side of the top of each worm wheel, and the surface of each rotating pin is sleeved with a flat frame. The front face and the back face of the flat frame are slidably connected with the inner wall of the mounting box. According to the invention, the clamping plate penetrates into the limiting rod and then is matched with the cooling fan for heat dissipation, so that the phenomenon of low installation efficiency is avoided, the heat dissipation performance is not influenced, and the service life of the IGBT device is not influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial sewing machines, and particularly to an IGBT device for industrial sewing machines. Background Art

[0002] According to the patent disclosed on the Chinese Patent Network, the patent name is: A New IGBT Device for Sewing Machines, and the patent number is: 202221103802.1. The present utility model relates to the technical field of IGBT devices, and discloses a new IGBT device for sewing machines, including a base. Both the left and right sides of the inner cavity of the base are fixedly connected with movable rods. The front and rear sides of the surface of the movable rods are sleeved and connected with first springs, and one side of the two first springs facing each other is fixedly connected with movable blocks. The inside of the movable blocks is movably connected with the surface of the movable rods. The top of the movable blocks is hinged with support rods, and the other ends of the support rods are hinged with heat dissipation plates. Fixing holes are respectively opened in the front, rear, left, and right sides of the top of the heat dissipation plates. The top of the heat dissipation plates is provided with an IGBT device body. The front, rear, left, and right sides of the surface of the IGBT device body are threadedly connected with fixing bolts. The top of the heat dissipation plates is provided with heat conduction plates. A number of heat dissipation holes are respectively opened in the front and rear sides of the surface of the heat dissipation plates. Both the front and rear sides of the inner cavity of the base are fixedly connected with second springs, and the other ends of the second springs are fixedly connected with the bottom of the heat dissipation plates. Both sides of the inner cavity of the base are provided with chutes. The left and right sides of the heat dissipation plates are fixedly connected with sliders, and the sliders are slidably connected with the inside of the chutes. A limiting plate is fixedly connected to the middle position of the surface of the movable rods, and the bottom of the limiting plate is fixedly connected with the inner wall of the base. The front, rear, left, and right sides of both sides of the base are fixedly connected with fixing plates, and screw holes are opened in the inside of the fixing plates. A cavity is opened in the inside of the heat dissipation plates, and the heat dissipation holes are in a through connection with the cavity. In the present utility model, both sides of the surface of the movable rods are sleeved with first springs, and the movable blocks are movably connected with the surface of the movable rods. When the IGBT device vibrates, the elastic force of the first springs on the movable blocks can be used to offset the vibration force received by the IGBT device, so as to buffer and protect the IGBT device. At the same time, through the settings of the heat conduction plates and the heat dissipation holes, heat dissipation treatment can be conveniently carried out on the IGBT device during operation, and its service life can be extended, solving the problems that the current IGBT devices do not have the function of buffering and shock absorption and are not convenient for heat dissipation. And the above-mentioned IGBT devices are all installed through screw holes. The installation by screw holes is not only inefficient, but also prone to thread slipping after a long time. Moreover, its heat dissipation method is only through the heat conduction plates and the heat dissipation holes, and the heat dissipation effect is not good, and it is easy to have the phenomenon of low heat dissipation efficiency, affecting the service life of the IGBT device.

[0003] Therefore, it is necessary to redesign the IGBT device to effectively prevent the phenomenon that it is inconvenient to install and has poor heat dissipation effect. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide an IGBT device for industrial sewing machines, which has the advantages of easy installation and fast heat dissipation, and solves the problems of inconvenient installation and poor heat dissipation effect.

[0005] To achieve the above object, the present invention provides the following technical solution: an IGBT device for an industrial sewing machine, comprising:

[0006] Connecting mechanism;

[0007] An IGBT device mechanism, wherein the IGBT device mechanism is sleeved on the top of the connecting mechanism;

[0008] The mounting mechanism is fixedly connected to the front and rear sides of the top of the IGBT device mechanism, and the mounting mechanism includes two mounting boxes. The outer side of the inner cavity of the mounting box is fixedly connected to a motor 1, and the output end of the motor 1 is fixedly connected to a worm. Both sides of the bottom of the inner cavity of the mounting box are movably connected to worm wheels through bearings. The inner side of the worm wheel is meshed with the worm. The outer side of the top of the worm wheel is fixedly connected to a rotating pin, and the surface of the rotating pin is sleeved with a flat frame. The front and back sides of the flat frame are slidably connected to the inner wall of the mounting box. The outer side of the flat frame is fixedly connected to a card plate, and the outer side of the card plate penetrates into the interior of the connecting mechanism;

[0009] The heat dissipation mechanism is fixedly connected to both sides of the IGBT device mechanism, and the heat dissipation mechanism includes two heat dissipation boxes, the front side of the inner side of the heat dissipation box cavity is fixedly connected with motor 2, the output end of motor 2 is fixedly connected with pulley 1, the surface of pulley 1 is transmission connected with a connecting belt, the rear side of the inner side of the heat dissipation box cavity is movably connected with pulley 2 through a bearing, the side of the connecting belt away from pulley 1 is transmission connected to the surface of pulley 2, the top of the outer side of the connecting belt is fixedly connected with a transmission pin, the surface of the transmission pin is sleeved with a vertical frame, the bottom of the vertical frame is slidably connected to the inner wall of the heat dissipation box, the top of the vertical frame passes through the top of the heat dissipation box, the top of the inner side of the vertical frame is fixedly connected with a special-shaped plate, and the inner side of the bottom of the special-shaped plate is fixedly connected with a cooling fan.

[0010] As a preferred embodiment of the present invention, the connecting mechanism includes a connecting plate, the four corners of the top of the connecting plate are fixedly connected to a limiting rod, the IGBT device mechanism is sleeved on the surface of the limiting rod, and the outer side of the clamping plate penetrates into the interior of the limiting rod.

[0011] Preferably, the IGBT device mechanism includes a base assembly, and a chip assembly is fixedly connected to the top of the base assembly.

[0012] Preferably, air pipes are fixedly connected to both the front side and the rear side of the outer side of the flat frame, and the outer sides of the air pipes are fixedly connected to the inner wall of the installation box.

[0013] Preferably, openings are formed on both sides of the installation box, and the openings are used in cooperation with the clamping plates.

[0014] Preferably, sliding rails are formed on both the front side and the rear side of the inner cavity of the installation box, and both the front side and the rear side of the flat frame are slidably connected inside the sliding rails.

[0015] Preferably, a positioning block is fixedly connected to the front side of the motor two, and the front side of the positioning block is fixedly connected to the inner wall of the heat dissipation box.

[0016] Preferably, a strip groove is formed at the bottom of the inner cavity of the heat dissipation box, and the bottom of the vertical frame is slidably connected inside the strip groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. Through the installation mechanism of the present invention, by using the clamping plate to be clamped inside the limiting rod, it can be quickly installed. Then, start the motor one. The output end of the motor one drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the rotating pin to rotate, the rotating pin drives the flat frame to move outward, and the flat frame drives the clamping plate to move outward, so that the clamping plate penetrates into the limiting rod, resulting in the effect of being able to quickly install. Then, when heat dissipation is required, start the motor two. The output end of the motor two drives the pulley one to rotate, the pulley one drives the pulley two to rotate through the connecting belt. While the connecting belt rotates, it also drives the transmission pin to rotate. The transmission pin drives the vertical frame to move back and forth, the vertical frame drives the special-shaped plate to move back and forth, and the special-shaped plate drives the cold air fan to move back and forth. Then, start the cold air fan so that the cold air fan conducts heat dissipation treatment on the chip assembly, resulting in the effect of being able to quickly dissipate heat. The IGBT device changes the traditional phenomenon of installing with screws and screw holes and having poor heat dissipation. By using the clamping plate to penetrate into the limiting rod and then cooperating with the cold air fan for heat dissipation treatment, there will be no phenomenon of slow installation efficiency, nor will it affect its heat dissipation performance, and even less will it affect the service life of the IGBT device.

[0019] 2. Through the setting of the connection mechanism of the present invention, the IGBT device mechanism can be installed more stably, avoiding the phenomenon of shaking.

[0020] 3. Through the setting of the IGBT device mechanism of the present invention, the circuit board can work more fully, avoiding the phenomenon of signal interruption.

[0021] 4. Through the setting of the air pipe, the flat frame of the present invention can operate more stably, and at the same time has a buffering effect.

[0022] 5. Through the setting of the opening, the clamping plate of the present invention can move more smoothly, avoiding the phenomenon of blockage.

[0023] 6. Through the setting of the slide rail, the flat frame of the present invention can slide more smoothly inside the installation box, reducing the friction between the two.

[0024] 7. Through the setting of the positioning block, the second motor of the present invention can operate more stably, avoiding the phenomenon of deviation.

[0025] 8. Through the setting of the strip groove, the vertical frame of the present invention can slide more smoothly inside the heat dissipation box, avoiding the phenomenon of jamming, reducing the friction between the two, and prolonging the service life of the vertical frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a structural diagram of the connection mechanism of the present invention;

[0028] Figure 3 is a structural diagram of the IGBT device mechanism of the present invention;

[0029] Figure 4 is a top view cross-sectional view of the installation box of the present invention;

[0030] Figure 5 is a side view cross-sectional view of the heat dissipation box of the present invention;

[0031] Figure 6 is a perspective view of a partial structure of the present invention.

[0032] In the figure: 1. Connection mechanism; 101. Connection plate; 102. Limit rod; 2. IGBT device mechanism; 201. Base assembly; 202. Chip assembly; 3. Installation mechanism; 301. Installation box; 302. First motor; 303. Worm; 304. Worm gear; 305. Rotating pin; 306. Flat frame; 307. Clamping plate; 4. Heat dissipation mechanism; 401. Heat dissipation box; 402. Second motor; 403. First pulley; 404. Connecting belt; 405. Second pulley; 406. Transmission pin; 407. Vertical frame; 408. Special-shaped plate; 409. Cold air fan; 5. Air pipe; 6. Opening; 7. Slide rail; 8. Positioning block; 9. Strip groove. DETAILED DESCRIPTION OF THE INVENTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] As Figures 1 to 6 shown, an IGBT device for an industrial sewing machine provided by the present invention includes:

[0035] A connecting mechanism 1;

[0036] An IGBT device mechanism 2, and the IGBT device mechanism 2 is sleeved on the top of the connecting mechanism 1;

[0037] An installation mechanism 3, and the installation mechanisms 3 are fixedly connected to the front side and the rear side of the top of the IGBT device mechanism 2. The installation mechanism 3 includes two installation boxes 301. The outer side of the inner cavity of the installation box 301 is fixedly connected with a first motor 302. The output end of the first motor 302 is fixedly connected with a worm 303. Both sides of the bottom of the inner cavity of the installation box 301 are movably connected with worm wheels 304 through bearings. The inner side of the worm wheel 304 is engaged with the worm 303. The outer side of the top of the worm wheel 304 is fixedly connected with a rotating pin 305. A flat frame 306 is sleeved on the surface of the rotating pin 305. The front and back surfaces of the flat frame 306 are slidably connected with the inner wall of the installation box 301. The outer side of the flat frame 306 is fixedly connected with a clamping plate 307. The outer side of the clamping plate 307 penetrates into the inside of the connecting mechanism 1. The use of the installation mechanism 3 can enable it to be installed more quickly. First, the base assembly 201 is sleeved on the surface of the limiting rod 102, and then the first motor 302 is started. The output end of the first motor 302 drives the worm 303 to rotate. The worm 303 drives the worm wheel 304 to rotate. The worm wheel 304 drives the rotating pin 305 to rotate. The rotating pin 305 drives the flat frame 306 to move outward. The flat frame 306 drives the clamping plate 307 to move outward, so that the clamping plate 307 penetrates into the inside of the limiting rod 102, resulting in the effect of quick installation;

[0038] The heat dissipation mechanism 4 is fixedly connected to both sides of the IGBT device mechanism 2. The heat dissipation mechanism 4 includes two heat dissipation boxes 401. A second motor 402 is fixedly connected to the front side of the inner side of the cavity of the heat dissipation box 401. The output end of the second motor 402 is fixedly connected to a first pulley 403. A connecting belt 404 is drivingly connected to the surface of the first pulley 403. A second pulley 405 is movably connected to the rear side of the inner side of the cavity of the heat dissipation box 401 through a bearing. The side of the connecting belt 404 away from the first pulley 403 is drivingly connected to the surface of the second pulley 405. A transmission pin 406 is fixedly connected to the top of the outer side of the connecting belt 404. A vertical frame 407 is sleeved on the surface of the transmission pin 406. The bottom of the vertical frame 407 is slidably connected to the inner wall of the heat dissipation box 401. The top of the vertical frame 407 penetrates through the top of the heat dissipation box 401. A special-shaped plate 408 is fixedly connected to the top of the inner side of the vertical frame 407. A cold air fan 409 is fixedly connected to the inner side of the bottom of the special-shaped plate 408. The heat dissipation mechanism 4 can make the chip component 202 be more fully dissipated. When heat dissipation is required, start the second motor 402. The output end of the second motor 402 drives the first pulley 403 to rotate. The first pulley 403 drives the second pulley 405 to rotate through the connecting belt 404. When the connecting belt 404 rotates, it will also drive the transmission pin 406 to rotate. The transmission pin 406 drives the vertical frame 407 to move back and forth. The vertical frame 407 drives the special-shaped plate 408 to move back and forth. The special-shaped plate 408 drives the cold air fan 409 to move back and forth. Then start the cold air fan 409 to make the cold air fan 409 perform heat dissipation treatment on the chip component 202, so as to achieve the effect of rapid heat dissipation.

[0039] Reference Figure 2 , the connecting mechanism 1 includes a connecting plate 101. Limit rods 102 are fixedly connected to the four corners of the top of the connecting plate 101. The IGBT device mechanism 2 is sleeved on the surface of the limit rods 102. The outside of the clamping plate 307 penetrates into the inside of the limit rods 102.

[0040] As a technical optimization scheme of the present invention, through the setting of the connecting mechanism 1, the IGBT device mechanism 2 can be more stably installed, avoiding the phenomenon of shaking.

[0041] Reference Figure 3 , the IGBT device mechanism 2 includes a base component 201. A chip component 202 is fixedly connected to the top of the base component 201.

[0042] As a technical optimization scheme of the present invention, through the setting of the IGBT device mechanism 2, the circuit board can work more fully, avoiding the phenomenon of signal interruption.

[0043] Reference Figure 4 , air pipes 5 are fixedly connected to the front side and the rear side of the outside of the flat frame 306. The outside of the air pipes 5 is fixedly connected to the inner wall of the installation box 301.

[0044] As a technical optimization solution of the present invention, through the setting of the air pipe 5, the flat frame 306 can operate more stably, and at the same time has a buffering effect.

[0045] Reference Figure 4 , openings 6 are provided on both sides of the installation box 301, and the openings 6 are used in cooperation with the clamping plates 307.

[0046] As a technical optimization solution of the present invention, through the setting of the openings 6, the clamping plates 307 can move more smoothly, avoiding the phenomenon of blockage.

[0047] Reference Figure 4 , sliding rails 7 are provided on the front and back of the inner cavity of the installation box 301, and the front and back of the flat frame 306 are slidably connected inside the sliding rails 7.

[0048] As a technical optimization solution of the present invention, through the setting of the sliding rails 7, the flat frame 306 can slide more smoothly inside the installation box 301, reducing the friction between the two.

[0049] Reference Figure 5 , a positioning block 8 is fixedly connected to the front side of the motor two 402, and the front of the positioning block 8 is fixedly connected to the inner wall of the heat dissipation box 401.

[0050] As a technical optimization solution of the present invention, through the setting of the positioning block 8, the motor two 402 can operate more stably, avoiding the phenomenon of deviation.

[0051] Reference Figure 5 , a strip groove 9 is provided at the bottom of the inner cavity of the heat dissipation box 401, and the bottom of the vertical frame 407 is slidably connected inside the strip groove 9.

[0052] As a technical optimization solution of the present invention, through the setting of the strip groove 9, the vertical frame 407 can slide more smoothly inside the heat dissipation box 401, avoiding the phenomenon of jamming, and at the same time reducing the friction between the two and extending the service life of the vertical frame 407.

[0053] Working principle and usage process of the present invention: First, the user sleevs the base component 201 on the surface of the limit rod 102, and then starts the first motor 302. The output end of the first motor 302 drives the worm 303 to rotate. The worm 303 drives the worm gear 304 to rotate. The worm gear 304 drives the rotating pin 305 to rotate. The rotating pin 305 drives the flat frame 306 to move outward. The flat frame 306 drives the clamping plate 307 to move outward, so that the clamping plate 307 penetrates into the inside of the limit rod 102, achieving the effect of quick installation. Then, when heat dissipation is required, start the second motor 402. The output end of the second motor 402 drives the first pulley 403 to rotate. The first pulley 403 drives the second pulley 405 to rotate through the connecting belt 404. While the connecting belt 404 rotates, it also drives the transmission pin 406 to rotate. The transmission pin 406 drives the vertical frame 407 to move back and forth. The vertical frame 407 drives the special-shaped plate 408 to move back and forth. The special-shaped plate 408 drives the cold air fan 409 to move back and forth. Then start the cold air fan 409 to dissipate heat from the chip component 202, achieving the effect of quick heat dissipation.

[0054] In summary: For the IGBT device used in the industrial sewing machine, through the installation mechanism 3, by using the clamping plate 307 to be clamped inside the limit rod 102, it can be quickly installed. Then start the first motor 302. The output end of the first motor 302 drives the worm 303 to rotate. The worm 303 drives the worm gear 304 to rotate. The worm gear 304 drives the rotating pin 305 to rotate. The rotating pin 305 drives the flat frame 306 to move outward. The flat frame 306 drives the clamping plate 307 to move outward, so that the clamping plate 307 penetrates into the inside of the limit rod 102, achieving the effect of quick installation. Then, when heat dissipation is required, start the second motor 402. The output end of the second motor 402 drives the first pulley 403 to rotate. The first pulley 403 drives the second pulley 405 to rotate through the connecting belt 404. While the connecting belt 404 rotates, it also drives the transmission pin 406 to rotate. The transmission pin 406 drives the vertical frame 407 to move back and forth. The vertical frame 407 drives the special-shaped plate 408 to move back and forth. The special-shaped plate 408 drives the cold air fan 409 to move back and forth. Then start the cold air fan 409 to dissipate heat from the chip component 202, achieving the effect of quick heat dissipation. The IGBT device changes the traditional installation method with screws and screw holes and the poor heat dissipation phenomenon. By using the clamping plate 307 to penetrate into the inside of the limit rod 102 and then cooperating with the cold air fan 409 for heat dissipation, the phenomenon of slow installation efficiency will not occur, nor will its heat dissipation performance be affected, and the service life of the IGBT device will not be affected either.

[0055] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An IGBT device for an industrial sewing machine, comprising: Connecting mechanism (1); An IGBT device mechanism (2), wherein the IGBT device mechanism (2) is sleeved on the top of the connection mechanism (1); The mounting mechanism (3) is fixedly connected to the front side and the rear side of the top of the IGBT device mechanism (2), the mounting mechanism (3) comprises two mounting boxes (301), the outer side of the inner cavity of the mounting box (301) is fixedly connected to a motor 1 (302), the output end of the motor 1 (302) is fixedly connected to a worm (303), and both sides of the bottom of the inner cavity of the mounting box (301) are movably connected to a worm wheel (304) via bearings. The inner side of the worm wheel (304) is meshed with the worm (303); a rotating pin (305) is fixedly connected to the outer side of the top of the worm wheel (304); a flat frame (306) is sleeved on the surface of the rotating pin (305); the front and back sides of the flat frame (306) are slidably connected to the inner wall of the installation box (301); a clamping plate (307) is fixedly connected to the outer side of the flat frame (306); and the outer side of the clamping plate (307) penetrates into the interior of the connecting mechanism (1); A heat dissipation mechanism (4), wherein the heat dissipation mechanism (4) is fixedly connected to both sides of the IGBT device mechanism (2), and the heat dissipation mechanism (4) comprises two heat dissipation boxes (401), wherein the front side of the inner cavity of the heat dissipation box (401) is fixedly connected to the second motor (402), the output end of the second motor (402) is fixedly connected to the first pulley (403), the surface of the first pulley (403) is transmission-connected to the connection belt (404), and the rear side of the inner cavity of the heat dissipation box (401) is movably connected to the second pulley (405) through a bearing, and the connection belt (404) is away from One side of the pulley 1 (403) is drivingly connected to the surface of the pulley 2 (405); the top of the outer side of the connecting belt (404) is fixedly connected to a driving pin (406); the surface of the driving pin (406) is sleeved with a vertical frame (407); the bottom of the vertical frame (407) is slidably connected to the inner wall of the heat dissipation box (401); the top of the vertical frame (407) passes through the top of the heat dissipation box (401); the top of the inner side of the vertical frame (407) is fixedly connected to a special-shaped plate (408); the inner side of the bottom of the special-shaped plate (408) is fixedly connected to a cooling fan (409).

2. The IGBT device for an industrial sewing machine according to claim 1, wherein: The connection mechanism (1) comprises a connection plate (101), the four corners of the top of the connection plate (101) are fixedly connected to a limit rod (102), the IGBT device mechanism (2) is sleeved on the surface of the limit rod (102), and the outer side of the clamping plate (307) penetrates into the interior of the limit rod (102).

3. The IGBT device for an industrial sewing machine according to claim 1, wherein: The IGBT device structure (2) comprises a base component (201), and a chip component (202) is fixedly connected to the top of the base component (201).

4. An IGBT device for an industrial sewing machine according to claim 1, characterized in that: The front side and the rear side of the outer side of the flat frame (306) are both fixedly connected with an air pipe (5), and the outer side of the air pipe (5) is fixedly connected to the inner wall of the installation box (301).

5. An IGBT device for an industrial sewing machine according to claim 1, characterized in that: Both sides of the installation box (301) are provided with openings (6), and the openings (6) are used in cooperation with the clamping plates (307).

6. An IGBT device for an industrial sewing machine according to claim 1, characterized in that: Sliding rails (7) are provided on the front and back of the inner cavity of the installation box (301), and the front and back of the flat frame (306) are slidably connected inside the sliding rails (7).

7. An IGBT device for an industrial sewing machine according to claim 1, characterized in that: A positioning block (8) is fixedly connected to the front side of the second motor (402), and the front of the positioning block (8) is fixedly connected to the inner wall of the heat dissipation box (401).

8. An IGBT device for an industrial sewing machine according to claim 1, characterized in that: A strip groove (9) is provided at the bottom of the inner cavity of the heat dissipation box (401), and the bottom of the vertical frame (407) is slidably connected inside the strip groove (9).

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