High adaptability sunroof lamp with adjustable illumination mode

Abstract

The application discloses a high-applicability skylight lamp with adjustable illumination mode, which comprises a skylight lamp body, a wall body and a fixing block, the skylight lamp body is movably installed in the interior of the wall body, the surface of the wall body is provided with a positioning groove, and the interior of the wall body is provided with a clamping groove, the fixing block is fixedly installed on the side surface of the skylight lamp body and is symmetrically distributed about the center of the skylight lamp body, further comprising a light-refracting plate, the light-refracting plate is fixedly installed on the surface of the long pin and is made of transparent glass, and a heat dissipation plate is movably installed in the interior of the fixing block and is fixedly provided with heat dissipation fins on the surface. When the illumination mode needs to be adjusted, the micro motor can be started, at the moment, the micro motor drives the light-refracting plate to open through the long pin, at the moment, the light intensity of the skylight lamp body changes, that is, the illumination mode changes, and the operation process is quick and convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sunroof lamps, in particular to a high-applicability sunroof lamp with adjustable illumination modes. BACKGROUND

[0002] The sunroof lamp has the advantages of energy saving and power saving, can simulate a blue sky, white clouds and sunlight, and has the effect of beautifying an indoor environment, such as a high-efficiency sunroof lamp disclosed in CN214094041U, which has high light utilization rate, good uniformity and clear and sharp edges of a light beam, but the illumination mode of the sunroof lamp is inconvenient to quickly adjust, so that the use range of the device as a whole is small, and the device has great limitations in use.

[0003] Meanwhile, the existing sunroof lamp is inconvenient to quickly disassemble and assemble, has low adaptability, reduces the installation speed of workers, and has poor heat dissipation effect during use, so that the overall endurance time of the device is short.

[0004] In view of the above problems, it is urgent to make innovative design on the basis of the original sunroof lamp. SUMMARY

[0005] The application aims to provide a high-applicability sunroof lamp with adjustable illumination modes to solve the problems of inconvenient quick adjustment, small use range of the device as a whole, great limitations in use, inconvenient quick disassembly and assembly, low adaptability, reduced installation speed of workers, poor heat dissipation effect during use of the existing sunroof lamp, and short endurance time of the device as a whole.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a high-applicability sunroof lamp with adjustable illumination modes, comprising a sunroof lamp body, a wall body and a fixing block, the sunroof lamp body is movably installed in the interior of the wall body, the surface of the wall body is provided with a positioning groove, and the interior of the wall body is provided with a clamping groove;

[0007] The fixing block is fixedly installed on the side surface of the sunroof lamp body, and the fixing block is symmetrically distributed about the center of the sunroof lamp body.

[0008] The high-applicability sunroof lamp with adjustable illumination modes further comprises:

[0009] The movable plate is movably installed on the surface of the fixing block, the movable plate is in the shape of an inverted "U" in a front view, the surface of the fixing block is provided with a deep groove corresponding to the movable plate, the sunroof lamp body forms a clamping structure with the wall body through the movable plate and the clamping groove, and the movable plate in the shape of an inverted "U" is convenient for workers to press.

[0010] The docking block is fixedly installed on the lower surface of the fixed block, and the side surface of the docking block is fixedly installed with a micro motor, and the tail end of the micro motor is fixedly installed with a long pin. When the micro motor works, the long pin drives the rotation of the docking block.

[0011] The light folding plate is fixedly installed on the surface of the long pin, and the light folding plate is made of transparent glass. When the long pin rotates, the long pin opens the light folding plate, so as not to block the light of the sunroof lamp body. At this time, the light of the sunroof lamp body directly enters the room, that is, the purpose of changing the lighting mode is achieved.

[0012] The heat dissipation plate is movably installed in the fixed block, and the surface of the heat dissipation plate is fixedly installed with a heat dissipation fin. The heat dissipation plate and the heat dissipation fin improve the overall heat dissipation effect of the device.

[0013] Preferably, the movable plate and the clamping groove are one-to-one corresponding, and the clamping groove is symmetrically distributed about the center of the sunroof lamp body, and the side surface of the movable plate is fixedly installed with a micro spring for elastic reset. When the staff presses the movable plate, the movable plate moves into the deep groove. While the movable plate moves, the micro spring is squeezed. Because the inner wall of the fixed block is attached to the surface of the movable plate, the movable plate only moves in the horizontal direction when the upper surface of the movable plate moves out of the clamping groove. At this time, the staff can take out the sunroof lamp body from the positioning groove.

[0014] Preferably, the other side of the micro spring is fixedly connected with the inner wall of the fixed block, and the inner wall of the fixed block is attached to the surface of the movable plate. When it is needed to install the sunroof lamp body on the wall, the sunroof lamp body is inserted into the positioning groove. At this time, the upper surface of the movable plate is squeezed by the inner wall of the wall, and the movable plate moves into the deep groove. The micro spring is compressed by the movable plate. When the upper surface of the sunroof lamp body contacts the inner wall of the wall, the upper surface of the movable plate is in the same horizontal direction as the clamping groove. At this time, the movable plate moves to the outside of the deep groove under the action of the micro spring. Finally, the movable plate enters the clamping groove, that is, the fixed block is in the clamping state with the wall, that is, the sunroof lamp body has been installed on the wall. The operation process is quick and convenient, which improves the work efficiency of the staff. The symmetrically distributed movable plate and clamping groove optimize the clamping effect and increase the stability of the device as a whole.

[0015] Preferably, the surface of the long pin is fixedly installed with a first micro gear, and the inner part of the fixed block is movably installed with a connecting shaft. When the micro motor drives the light folding plate to rotate through the long pin, the first micro gear with a half gear structure rotates synchronously.

[0016] Preferably, the surface of the connecting shaft is fixedly connected with a second micro gear corresponding to the first micro gear, the first micro gear is a half gear structure, and the inside of the fixed block is provided with an inward recess corresponding to the second micro gear, when the first micro gear rotates, the first micro gear drives the connecting shaft to rotate in the inward recess through the second micro gear.

[0017] Preferably, the surface of the connecting shaft is fixedly connected with a steel wire rope, the radiating fins are distributed at equal intervals on the surface of the radiating plate, the inside of the radiating plate is fixedly provided with a stand, and the surface of the radiating plate is attached to the inner wall of the fixed block, when the connecting shaft rotates in the inward recess, the connecting shaft drives the stand to rotate by winding the steel wire rope, the stand drives the radiating plate and the radiating fins to rotate in the fixed block, and the rotation of the radiating plate and the radiating fins optimizes the heat dissipation effect.

[0018] Preferably, the other side of the steel wire rope is wound on the surface of the stand, and the surface of the radiating plate is fixedly provided with a convex block, when the radiating plate and the radiating fins rotate in the fixed block, the convex block rotates in the recess.

[0019] Preferably, the convex blocks are symmetrically distributed about the center of the radiating plate, and the surface of the convex blocks is fixedly provided with sliding blocks, the symmetrically distributed convex blocks increase the stability when the radiating plate rotates.

[0020] Preferably, the inside of the fixed block is provided with a recess corresponding to the convex blocks, and the inside of the fixed block is provided with a sliding groove corresponding to the sliding blocks, when the convex blocks rotate in the recess, the sliding blocks rotate in the sliding groove.

[0021] Preferably, the surface of the sliding blocks is attached to the inner wall of the fixed block, the surface of the sliding blocks is fixedly connected with an elastic return function elastic rope, and the other side of the elastic rope is fixedly connected with the inner wall of the fixed block, when the sliding blocks slide in the sliding groove, the sliding blocks stretch the elastic rope, when the first micro gear and the second micro gear of the half gear structure are not engaged, the connecting shaft no longer rotates, at this time, the stand and the radiating plate are no longer subjected to the tension of the steel wire rope, at this time, the convex blocks are rotated under the action of the sliding blocks and the elastic rope, that is, the radiating plate and the radiating fins are rotated, and the heat dissipation effect is further improved, and finally, the stand, the convex blocks, the radiating plate and the radiating fins return to the initial state under the action of the sliding blocks and the elastic rope, facilitating the next use, and when the long pin drives the light splitting plate to close, the radiating plate and the radiating fins are also in an active state, thereby optimizing the heat dissipation effect.

[0022] Compared with the prior art, the light mode adjustable high adaptability sunroof lamp has the beneficial effects that: the light mode adjustable high adaptability sunroof lamp adopts a novel structure design, and the specific contents are as follows:

[0023] (1) When the lighting mode of the skylight lamp with adjustable light mode needs to be adjusted, the micro motor can be started. At this time, the micro motor drives the deflection plate to open through the long pin. When the symmetrically distributed deflection plates are opened, the light from the skylight lamp body is directly projected into the room. Compared with the previous situation where the deflection plates blocked the light, the lighting mode is changed, and the changing process is quick and convenient.

[0024] (2) When the skylight lamp with adjustable lighting mode needs to be disassembled, the movable plate is pressed against the inside of the fixed block. At this time, the movable plate moves toward the inside of the deep groove. After the movable plate moves out of the slot, the fixed block and the wall are no longer in a locked state. At this time, the staff can take out the skylight lamp body from the inside of the positioning slot. When the skylight lamp body needs to be installed, the skylight lamp body is inserted into the positioning slot. When the upper surface of the skylight lamp body contacts the inner wall of the wall, the upper surface of the movable plate and the slot are in the same horizontal direction. At this time, the movable plate enters the slot under the action of the micro spring, that is, the skylight lamp body has been installed on the wall. The symmetrically distributed movable plate and slot optimize the locking effect and increase the overall stability of the device.

[0025] (3) When the long pin drives the deflecting plate to rotate to open, the heat sink and the heat sink rotate around the protrusion under the action of the first micro gear, the second micro gear and the elastic rope. The rotation of the heat sink and the heat sink optimizes the heat dissipation effect and extends the single-time use time of the entire device. When the long pin drives the deflecting plate to close, the heat sink and the heat sink are also in an active state, thereby optimizing the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0027] Figure 2 This is a partial front cross-sectional structural diagram of the deflecting plate of the present invention in working state;

[0028] Figure 3 For the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0029] Figure 4 It is a partial front cross-sectional structural diagram of the movable plate of the present invention in working state;

[0030] Figure 5 This is a schematic diagram of the three-dimensional structure of the movable plate of the present invention;

[0031] Figure 6 This is a schematic diagram of the connection structure between the micro motor and the long pin of the present invention;

[0032] Figure 7 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0033] Figure 8 The schematic diagram of the connecting structure of the heat dissipation plate and the column of the present application;

[0034] Figure 9 The schematic diagram of the connecting structure of the protrusion and the sliding block of the present application.

[0035] In the figure: 1, the sunroof lamp body; 2, the wall; 3, the clamping groove; 4, the fixed block; 5, the deep groove; 6, the movable plate; 7, the micro spring; 8, the positioning groove; 9, the butt joint block; 10, the micro motor; 11, the light folding plate; 12, the first micro gear; 13, the connecting shaft; 14, the second micro gear; 15, the steel wire rope; 16, the heat dissipation plate; 17, the heat dissipation fin; 18, the column; 19, the protrusion; 20, the recessed groove; 21, the long pin; 22, the groove; 23, the sliding block; 24, the sliding groove; 25, the elastic rope. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to Figures 1-9 The present application provides a technical solution: a high-applicability sunroof lamp with adjustable illumination mode, comprising a sunroof lamp body 1, a wall 2 and a fixed block 4, the sunroof lamp body 1 is movably installed inside the wall 2, the surface of the wall 2 is provided with a positioning groove 8, and the inside of the wall 2 is provided with a clamping groove 3;

[0038] The fixed block 4 is fixedly installed on the side surface of the sunroof lamp body 1, and the fixed block 4 is symmetrically distributed about the center of the sunroof lamp body 1;

[0039] The high-applicability sunroof lamp with adjustable illumination mode further comprises:

[0040] A movable plate 6 is movably installed on the surface of the fixed block 4, the movable plate 6 is in the shape of an inverted "U" in the front view, and the surface of the fixed block 4 is provided with a deep groove 5 corresponding to the movable plate 6;

[0041] A butt joint block 9 is fixedly installed on the lower surface of the fixed block 4, the side surface of the butt joint block 9 is fixedly provided with a micro motor 10, and the tail end of the micro motor 10 is fixedly provided with a long pin 21;

[0042] A light folding plate 11 is fixedly installed on the surface of the long pin 21, and the light folding plate 11 is made of transparent glass;

[0043] The heat dissipation plate 16 is movably mounted inside the fixed block 4 , and a heat sink 17 is fixedly mounted on the surface of the heat dissipation plate 16 .

[0044] The movable plate 6 corresponds to the card slot 3 one by one, and the card slot 3 is symmetrically distributed about the center of the skylight lamp body 1, and a micro spring 7 that plays an elastic reset role is fixedly installed on the side of the movable plate 6, and the other side of the micro spring 7 is fixedly connected to the inner wall of the fixed block 4, and the inner wall of the fixed block 4 is in contact with the surface of the movable plate 6.

[0045] When the staff needs to remove the skylight lamp body 1 from the wall 2, they can press the movable plate 6 into the inside of the fixed block 4. At this time, the movable plate 6 will move into the inside of the deep groove 5, and at the same time, the micro spring 7 will be compressed. After the end of the movable plate 6 moves out of the card slot 3, the fixed block 4 and the wall 2 are no longer in a card-engaging state. At this time, the staff can take out the skylight lamp body 1 from the inside of the positioning groove 8. When the staff needs to install the skylight lamp body 1 on the wall 2, the skylight lamp body 1 is inserted into the positioning groove 8. At this time, the upper surface of the movable plate 6 will be squeezed by the inner wall of the wall 2, and the movable plate 6 will move into the deep groove 5. 3, and the micro-spring 7 is compressed by the movable plate 6. When the upper surface of the skylight lamp body 1 contacts the inner wall of the wall 2, the upper surface of the movable plate 6 and the card slot 3 are in the same horizontal direction. At this time, the movable plate 6 moves to the outside of the deep groove 5 under the action of the micro-spring 7, and finally the movable plate 6 will enter the card slot 3, that is, the fixed block 4 and the wall 2 are in a locked state, that is, the skylight lamp body 1 has been installed on the wall 2. The operation process is quick and convenient, which improves the work efficiency of the staff, and the symmetrically distributed movable plates 6 and card slots 3 optimize the locking effect and increase the overall stability of the device.

[0046] A first micro gear 12 is fixedly mounted on the surface of the long pin 21, a connecting shaft 13 is movably mounted inside the fixed block 4, a second micro gear 14 corresponding to the first micro gear 12 is fixedly mounted on the surface of the connecting shaft 13, and the first micro gear 12 is a half gear structure, and an inner recessed groove 20 corresponding to the second micro gear 14 is opened inside the fixed block 4.

[0047] A steel wire rope 15 is fixedly connected to the surface of the connecting shaft 13, and heat sinks 17 are evenly spaced on the surface of the heat sink 16. A column 18 is fixedly installed inside the heat sink 16, and the surface of the heat sink 16 is in contact with the inner wall of the fixed block 4. The other side of the steel wire rope 15 is wrapped around and connected to the surface of the column 18. A bump 19 is fixedly installed on the surface of the heat sink 16.

[0048] When the user needs to adjust the light mode, the micro motor 10 is started, at which time the micro motor 10 drives the light folding plate 11 to rotate through the long pin 21, and finally the symmetrically distributed light folding plate 11 is opened, at which time the light of the sunroof lamp body 1 cannot pass through the light folding plate 11, that is, the light mode of the sunroof lamp body 1 is changed.

[0049] The convex blocks 19 are symmetrically distributed about the center of the heat dissipation plate 16, and the surfaces of the convex blocks 19 are fixedly provided with sliding blocks 23, and the inner part of the fixed block 4 is provided with grooves 22 corresponding to the convex blocks 19, and the inner part of the fixed block 4 is provided with sliding grooves 24 corresponding to the sliding blocks 23.

[0050] The surface of the sliding block 23 is attached to the inner wall of the fixed block 4, and the surface of the sliding block 23 is fixedly connected with an elastic cord 25 which plays a role of elastic return, and the other side of the elastic cord 25 is fixedly connected with the inner wall of the fixed block 4.

[0051] When the long pin 21 drives the light folding plate 11 to rotate to open, the long pin 21 simultaneously drives the connecting shaft 13 to rotate inside the inner recess 20 through the first micro gear 12 and the second micro gear 14 of the half gear structure, and at the same time that the connecting shaft 13 rotates, the connecting shaft 13 drives the stand column 18, the heat dissipation plate 16 and the heat dissipation fin 17 to rotate through the steel wire rope 15, and at the same time the heat dissipation plate 16 drives the convex block 19 to rotate inside the groove 22, and when the convex block 19 rotates inside the groove 22, the sliding block 23 will slide inside the sliding groove 24, and the sliding block 23 will simultaneously stretch the elastic cord 25, and when the second micro gear 14 does not mesh with the first micro gear 12 of the half gear structure, the connecting shaft 13 no longer rotates, at which time the stand column 18, the heat dissipation plate 16 and the heat dissipation fin 17 lose the tension of the steel wire rope 15, at which time the elastic cord 25 rebounds, the elastic cord 25 pulls the sliding block 23 to slide back inside the sliding groove 24, the sliding block 23 drives the convex block 19, the heat dissipation plate 16 and the heat dissipation fin 17 to rotate back, and finally the stand column 18, the convex block 19, the heat dissipation plate 16 and the heat dissipation fin 17 return to the initial state, and the above process is repeated, so that the heat dissipation plate 16 and the heat dissipation fin 17 are in a state of activity, the effect of self-heat dissipation and pressure reduction is optimized, and the single use time of the whole device is prolonged, and when the user closes the light folding plate 11, the long pin 21 is reversed through the control of the micro motor 10, at which time the above process occurs again, so that the heat dissipation plate 16 and the heat dissipation fin 17 are again in a state of activity, and the effect of heat dissipation and pressure reduction is optimized.

[0052] Working principle: when the high-applicability sunroof lamp with adjustable light mode is used, first of all, the device is placed at a position where work needs to be performed, according to Figures 1-9When the staff needs to detach the skylight lamp body 1 from the wall 2, the movable plate 6 can be pressed into the interior of the fixed block 4, at this time, the movable plate 6 moves into the interior of the deep groove 5, and at the same time, the micro spring 7 is compressed, when the end of the movable plate 6 moves out of the clamping groove 3, the fixed block 4 is not in the clamping state with the wall 2, at this time, the staff can take out the skylight lamp body 1 from the interior of the positioning groove 8, the operation process is quick and convenient, and the working efficiency of the staff is improved, when installing the skylight lamp body 1, the skylight lamp body 1 is inserted into the positioning groove 8, when the upper surface of the skylight lamp body 1 contacts the inner wall of the wall 2, the upper surface of the movable plate 6 is in the same horizontal direction with the clamping groove 3, at this time, the movable plate 6 enters into the clamping groove 3 under the action of the micro spring 7, that is, the skylight lamp body 1 has been installed on the wall 2, when the user needs to adjust the light mode, the micro motor 10 is started, the micro motor 10 drives the light folding plate 11 to rotate through the long pin 21, and finally the symmetrically distributed light folding plate 11 is opened, at this time, the brightness of the skylight lamp body 1 cannot penetrate the light folding plate 11, that is, the light mode of the skylight lamp body 1 is changed, when the long pin 21 drives the light folding plate 11 to rotate to be opened, the long pin 21 simultaneously drives the connecting shaft 13 to rotate in the interior of the recessed groove 20 through the first micro gear 12 and the second micro gear 14 of the half gear structure, and the heat dissipation plate 16 and the heat dissipation fin 17 are always in the active state under the action of the first micro gear 12, the second micro gear 14, the sliding block 23 and the elastic rope 25, the effect of self heat dissipation and pressure reduction is optimized, and the single use time of the whole device is prolonged, and the above process will occur again when the light folding plate 11 is closed.

[0053] The above is the working process of the whole device, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0054] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A highly adaptable skylight lamp with adjustable lighting modes, comprising a skylight lamp body, a wall, and a fixing block. The skylight lamp body is movably mounted inside the wall, a positioning groove is formed on the surface of the wall, and a locking groove is formed inside the wall. The fixing blocks are fixedly mounted on the side of the skylight lamp body, and the fixing blocks are symmetrically distributed about the center of the skylight lamp body; It is characterized in that Also includes: A movable plate, the movable plate being movably mounted on the surface of the fixed block, and the movable plate is in an inverted "U" shape when viewed from the front, and a deep groove corresponding to the movable plate is opened on the surface of the fixed block; A docking block, the docking block is fixedly mounted on the lower surface of the fixed block, a micro motor is fixedly mounted on the side of the docking block, and a long pin is fixedly mounted on the end of the micro motor; A deflecting plate, which is fixedly mounted on the surface of the long pin and is made of transparent glass; A heat sink, the heat sink being movably mounted inside the fixed block, and a heat sink being fixedly mounted on the surface of the heat sink; A first micro gear is fixedly mounted on the surface of the long pin, and a connecting shaft is movably mounted inside the fixed block; A second micro gear corresponding to the first micro gear is fixedly mounted on the surface of the connecting shaft, and the first micro gear is a half gear structure, and an inner recessed groove corresponding to the second micro gear is opened inside the fixing block; A steel wire rope is fixedly connected to the surface of the connecting shaft, the heat sinks are evenly spaced on the surface of the heat sink, columns are fixedly installed inside the heat sink, and the surface of the heat sink fits the inner wall of the fixed block.

2. The highly adaptable skylight lamp with adjustable illumination mode according to claim 1, characterized in that: The movable plate corresponds to the slots one by one, and the slots are symmetrically distributed about the center of the skylight lamp body, and a micro spring that plays an elastic reset role is fixedly installed on the side of the movable plate.

3. The highly adaptable skylight lamp with adjustable illumination mode according to claim 2, characterized in that: The other side of the micro spring is fixedly connected to the inner wall of the fixed block, and the inner wall of the fixed block is in contact with the surface of the movable plate.

4. The highly adaptable skylight lamp with adjustable illumination mode according to claim 3, characterized in that: The other side of the steel wire rope is wound and connected to the surface of the column, and a protrusion is fixedly installed on the surface of the heat dissipation plate.

5. The highly adaptable skylight lamp with adjustable illumination mode according to claim 4, characterized in that: The bumps are symmetrically distributed about the center of the heat dissipation plate, and sliders are fixedly mounted on the surfaces of the bumps.

6. The highly adaptable skylight lamp with adjustable illumination mode according to claim 5, characterized in that: A groove corresponding to the protrusion is provided inside the fixing block, and a sliding groove corresponding to the sliding block is provided inside the fixing block.

7. The highly adaptable skylight lamp with adjustable illumination mode according to claim 6, characterized in that: The surface of the slider is in contact with the inner wall of the fixed block, and an elastic cord having an elastic reset function is fixedly connected to the surface of the slider, and the other side of the elastic cord is fixedly connected to the inner wall of the fixed block.

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