CN212841162U

CN212841162U - Movie & TV lamp light source and movie & TV lamps and lanterns

Info

Publication number: CN212841162U
Application number: CN202021525356.4U
Authority: CN
Inventors: 陈清山
Original assignee: Yusheng Technology Shenzhen Co ltd
Current assignee: Yusheng Technology Shenzhen Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-30
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to a movie & TV lamp light source and movie & TV lamps and lanterns, including installing casing, radiator, LED light source, optical lens, radiator fan, drive circuit board and connecting pin; the radiator is fixedly arranged at the upper part of the inner cavity of the mounting shell, and the LED light source is arranged on the front end face of the radiator and is exposed out of the mounting shell; the optical lens cover is arranged outside the LED light source and fixed on the front end face of the mounting shell; the heat radiation fan is fixed on the rear end face of the mounting shell and communicated with the heat radiator; the driving circuit board is fixedly arranged at the lower part of the inner cavity of the mounting shell to drive the LED light source to work; the connecting pins are fixedly arranged at the bottom of the mounting shell and electrically connected with the driving circuit board. The heat generated by the LED light source in the utility model can be directly transferred to the radiator for fast heat dissipation, and the heat absorbed by the radiator is extracted out by the heat dissipation fan at the same time, so that the heat is dissipated into the air to the utmost extent; meanwhile, the installation mode of detachable replacement is adopted, so that the installation and the disassembly are more convenient.

Description

Movie & TV lamp light source and movie & TV lamps and lanterns

Technical Field

The utility model belongs to the technical field of the illumination lamps and lanterns, especially, relate to a movie & TV lamp light source and movie & TV lamps and lanterns.

Background

In recent years, the development of the film and television lamp industry is promoted by the rapid development of the film and television industry and the advertisement industry, and because a movie, a television play or an advertisement is shot by the light, the effect of the light directly influences the shooting effect, so that the relationship between the films and the television play is closely related and complementary. Video lamps are used for lighting and achieving certain light effects in advertising and video shooting. It helps to represent the content of the program, to embody the author's creative intentions, to create artistic atmosphere, and to get the correct color perception and exposure for the viewer and the camera. The conventional film and television lamp has the problem of poor heat dissipation function, the light source of the film and television lamp is large, the power of the film and television lamp is also high, the conventional lamp shade base is of a cylindrical structure, a heat dissipation hole groove is formed in the side wall of the lamp shade base, and the distance between the top end of the lamp shade base and the light source is small, so that the heat dissipation space is small, and the heat dissipation effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a movie & TV lamp light source and movie & TV lamps and lanterns aims at solving the technical problem that there is heat dissipation malfunction in the movie & TV lamps and lanterns among the prior art.

In order to achieve the above object, an embodiment of the present invention provides a light source for a video lamp, which includes a mounting housing, a heat sink, an LED light source, an optical lens, a heat dissipation fan, a driving circuit board, and a connecting pin; the radiator is fixedly arranged at the upper part of the inner cavity of the mounting shell, and the LED light source is arranged on the front end face of the radiator and exposed out of the mounting shell; the optical lens cover is arranged outside the LED light source and fixed on the front end face of the mounting shell; the heat radiation fan is fixed on the rear end face of the mounting shell and communicated with the radiator; the center lines of the optical lens, the LED light source, the radiator and the heat radiation fan are coincided; the driving circuit board is fixedly arranged at the lower part of the inner cavity of the mounting shell to drive the LED light source to work; the connecting pins are fixedly arranged at the bottom of the mounting shell and are electrically connected with the driving circuit board.

Optionally, the mounting housing includes a bottom housing seat, a bottom housing panel, an upper housing seat, an upper housing panel, and a top cover, which are fixedly spliced with each other, the driving circuit board is inserted into an inner cavity of the bottom housing seat, and the bottom housing panel is fixed to a rear end surface of the bottom housing seat to seal the driving circuit board; the connecting pins are fixed on the bottom surface of the bottom shell seat; the upper shell seat is fixed on the top surface of the bottom shell seat, the radiator is fixed in an inner cavity of the upper shell seat, and the upper shell panel and the top cover are respectively fixed on the rear end surface and the top surface of the upper shell seat so as to seal the radiator; the optical lens is fixed on the front end face of the upper shell panel; the heat radiation fan is fixed on the rear end face of the upper shell panel.

Optionally, a light source exposure hole is formed through the front end surface of the upper casing base, and the LED light source is exposed out of the upper casing base through the light source exposure hole; the optical lens is fixed on the outer edge of the light source exposure hole and seals the light source exposure hole.

Optionally, a heat dissipation circulation hole is formed through the rear end surface of the upper case panel, and the heat dissipation fan is fixed to the outer edge of the heat dissipation circulation hole and closes the heat dissipation circulation hole, so that heat dissipated by the heat sink is extracted from the heat dissipation circulation hole and discharged to the outside.

Optionally, auxiliary heat dissipation holes are formed in the left end face and the right end face of the upper shell base in a penetrating mode, so that heat dissipated by the radiator can be discharged from the auxiliary heat dissipation holes on the two sides conveniently.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the movie & TV lamp light source have one of following technological effect at least: in the film and television lamp light source of the utility model, the LED light source is arranged on the front end face of the radiator, the radiator fan is arranged on the rear end face of the radiator, and the central lines of the LED light source, the radiator and the radiator fan are coincided, two heat dissipation technical means of heat conduction and air cooling of the metal radiating fin are integrated, and the heat dissipation efficiency is high; therefore, heat generated by the LED light source can be directly transferred to the radiator to be quickly radiated, and meanwhile, the heat absorbed by the radiator is accelerated to be drawn out by the cooling fan, so that heat accumulation can not occur, and the heat generated by the LED light source can be effectively and timely radiated to the air to the maximum extent. Meanwhile, the utility model discloses movie & TV lamp light source adopts the removable mounting means who pulls out the replacement, and it is more convenient to install and dismantle.

In order to achieve the above object, an embodiment of the present invention provides a movie lamp, which includes a lampshade base, a light source installation component, a position adjustment component and the movie lamp light source, wherein the position adjustment component is disposed at the bottom of the lampshade base, the light source installation component is movably installed on the position adjustment component, and the movie lamp light source is fixedly installed on the light source installation component; and the positions of the light source mounting assembly and the movie and television lamp light source in the lamp shade seat are adjusted through the position adjusting assembly.

Optionally, the position adjusting assembly comprises a guide rod, a threaded adjusting rod and an adjusting drive plate, and the guide rod and the threaded adjusting rod are arranged in parallel on two sides of the bottom of the lampshade base; the lamp shade driving plate is fixedly connected with the lamp shade seat, the lamp shade seat is fixedly connected with the lamp shade seat, and the lamp shade seat is fixedly connected with the lamp shade seat; one end of the light source mounting assembly is arranged on the guide rod in a sliding mode, and the other end of the light source mounting assembly is connected to the threaded adjusting rod in a transmission mode.

Optionally, the light source installation component comprises an installation base, two clamping seats and a locking unit, the installation base is movably installed on the position adjusting component, the two clamping seats are oppositely arranged and movably installed on the installation base, the locking unit penetrates through the two clamping seats to adjust the distance between the two clamping seats, and then the video lamp light source is clamped and fixed on the two clamping seats.

Optionally, the locking unit includes a locking screw, a locking nut, a locking shift lever and a support spring, the locking screw penetrates through the two clamping seats, the locking nut is connected to the end of the locking screw in a threaded manner, the locking shift lever is hinged to the front end of the locking screw, and the support spring is sleeved on the locking screw and supports the clamping seat and the locking shift lever respectively.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the movie & TV lamps and lanterns have one of following technological effect at least: compared with the prior art, the utility model discloses among the movie & TV lamps and lanterns, through using foretell movie & TV lamp light source, and then with the heat furthest's that LED light source work produced effectively, in time distribute the air in the middle of, therefore solve the movie & TV lamps and lanterns among the prior art and have the technical problem of heat dissipation function failure. Furthermore, the utility model discloses movie & TV lamps and lanterns cooperate the quick installation and the dismantlement of accomplishing movie & TV lamp light source through setting up light source installation component, and movie & TV lamp light source pegs graft in light source installation component promptly to by this light source installation component snap-on. Meanwhile, the utility model discloses movie & TV lamps and lanterns can realize carrying out intelligent regulation to beam diffusion angle through setting up the position of position control subassembly adjustment light source installation component and movie & TV lamp light source in the lampshade stand, and the accuracy of regulation is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a film and television light source provided by an embodiment of the present invention.

Fig. 2 is a first exploded schematic view of a film and television light source provided by an embodiment of the present invention.

Fig. 3 is a second exploded view of a movie and television light source according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the mounting housing according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a movie and television lamp provided in an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a position adjustment assembly according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a light source mounting assembly according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-movie lamp light source 11-mounting shell 111-bottom shell seat

112-bottom case panel 113-upper case 1131-light source exposure hole

1132-auxiliary heat dissipation hole 114-upper shell panel 1141-heat dissipation circulation hole

115-top cover 12-radiator 13-LED light source

14-optical lens 15-radiator fan 16-drive circuit board

17-connecting pin 2-lamp shade base 3-light source installation component

31-mounting base 32-clamping seat 33-locking unit

331-locking screw 332-locking nut 333-locking deflector rod

334-holding spring 4-position adjusting assembly 41-guide rod

42-screw thread adjusting rod 43-adjusting dial

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 3, there is provided a movie and television lamp light source 1, which includes a mounting housing 11, a heat sink 12, an LED light source 13, an optical lens 14, a heat dissipation fan 15, a driving circuit board 16 and a connection pin 17; the heat sink 12 is fixedly installed at the upper part of the inner cavity of the installation shell 11, and the LED light source 13 is arranged on the front end face of the heat sink 12 and exposed out of the installation shell 11; the optical lens 14 is covered outside the LED light source 13 and fixed on the front end surface of the mounting shell 11; the heat dissipation fan 15 is fixed on the rear end face of the mounting housing 11 and is communicated with the heat sink 12; the center lines of the optical lens 14, the LED light source 13, the heat sink 12 and the heat dissipation fan 15 are coincident; the driving circuit board 16 is fixedly installed at the lower part of the inner cavity of the installation shell 11 to drive the LED light source 13 to work; the connection pins 17 are fixedly arranged at the bottom of the mounting shell 11 and electrically connected with the driving circuit board 16.

The embodiment of the present invention provides a film and television light source 1, which is further described as follows: in the utility model of the movie and television light source, the LED light source 13 is arranged on the front end face of the radiator 12, the radiator fan 15 is arranged on the rear end face of the radiator 12, and the central lines of the LED light source 13, the radiator 12 and the radiator fan 15 are coincided, so that two heat dissipation technical means of metal radiating fin heat conduction and air cooling are integrated, and the heat dissipation efficiency is high; therefore, heat generated by the operation of the LED light source 13 can be directly transferred to the heat sink 12 for rapid heat dissipation, and the heat absorbed by the heat sink 12 is extracted by the heat dissipation fan 15 at an accelerated speed without heat accumulation, so that the heat generated by the operation of the LED light source 13 is dissipated to the air to the maximum extent effectively and timely. Meanwhile, the utility model discloses movie & TV lamp light source adopts the removable mounting means who pulls out the replacement, and it is more convenient to install and dismantle.

In another embodiment of the present invention, as shown in fig. 4, the mounting housing 11 of the video light source 1 includes a bottom housing seat 111, a bottom housing panel 112, an upper housing seat 113, an upper housing panel 114, and a top cover 115, which are fixed to each other, the driving circuit board 16 is inserted into the inner cavity of the bottom housing seat 111, and the bottom housing panel 112 is fixed to the rear end surface of the bottom housing seat 111 to enclose the driving circuit board 16; the connecting pin 17 is fixed on the bottom surface of the bottom shell seat 111; the upper casing seat 113 is fixed on the top surface of the bottom casing seat 111, the heat sink 12 is fixed in the inner cavity of the upper casing seat 113, and the upper casing panel 114 and the top cover 115 are respectively fixed on the rear end surface and the top surface of the upper casing seat 113 to seal the heat sink 12; the optical lens 14 is fixed on the front end face of the upper shell panel 114; the heat dissipation fan 15 is fixed to a rear end surface of the upper case panel 114. Specifically, in this embodiment, through the split design of the bottom case seat 111, the bottom case panel 112, the upper case seat 113, the upper case panel 114 and the top cover 115, the fast assembly and the splicing of the driving circuit board 16, the heat sink 12, the optical lens 14 and the heat dissipation fan 15 are realized, the difficulty of the assembly is reduced, and the assembly efficiency of the movie and television light source 1 is greatly improved.

As shown in fig. 4, a light source exposing hole 1131 is formed through a front end surface of the upper casing base 113 in the video lamp light source 1, and the LED light source 13 is exposed to the upper casing base 113 through the light source exposing hole 1131; the optical lens 14 is fixed to an outer edge of the light source exposure hole 1131 and closes the light source exposure hole 1131.

Further, as shown in fig. 4, a heat dissipation circulation hole 1141 is formed through a rear end surface of the upper case panel 114 in the light source 1 of the video lamp, and the heat dissipation fan 15 is fixed to an outer edge of the heat dissipation circulation hole 1141 and seals the heat dissipation circulation hole 1141, so as to draw out heat dissipated from the heat sink 12 through the heat dissipation circulation hole 1141 and discharge the heat to the outside.

Furthermore, as shown in fig. 4, auxiliary heat dissipation holes 1132 are formed through the left and right end surfaces of the upper housing 113 of the video light source 1, so that the heat dissipated by the heat sink 12 can be dissipated from the auxiliary heat dissipation holes 1132 at the two sides.

In another embodiment of the present invention, as shown in fig. 5, a movie and television lamp is provided, which comprises a lampshade base 2, a light source installation component 3, a position adjusting component 4 and the movie and television light source 1, wherein the position adjusting component 4 is disposed at the bottom of the lampshade base 2, the light source installation component 3 is movably installed on the position adjusting component 4, and the movie and television light source 1 is fixedly installed on the light source installation component 3.

The embodiment of the present invention provides a movie and television lamp, which is further described as follows: the utility model discloses in the movie & TV lamps and lanterns, through using foretell movie & TV lamp light source 1, and then will the heat furthest's that LED light source 13 work produced effectively, in time distribute the air in the middle of, therefore solve the movie & TV lamps and lanterns among the prior art and have the technical problem of heat dissipation function failure. Furthermore, the utility model discloses movie & TV lamps and lanterns are through setting light source installation component 3 come the cooperation to be accomplished movie & TV lamp light source 1's quick installation and dismantlement, promptly movie & TV lamp light source 1 is pegged graft in the light source installation component 3 to by this light source installation component 3 snap-on. Meanwhile, the utility model discloses movie & TV lamps and lanterns are through setting up 4 adjustments of position control subassembly the light source installation component 3 with movie & TV lamp light source 1 is in position in the lamp shade seat 2 can realize carrying out intelligent regulation to beam diffusion angle, and the accuracy of adjusting is high.

In another embodiment of the present invention, as shown in fig. 6, the position adjusting assembly 4 in the movie lamp comprises a guide rod 41, a screw thread adjusting rod 42 and an adjusting dial 43, wherein the guide rod 41 and the screw thread adjusting rod 42 are arranged in parallel on two sides of the bottom of the lamp cover base 2; the two ends of the guide rod 41 are fixedly connected to the lamp shade base 2, the two ends of the threaded adjusting rod 42 are rotatably connected to the lamp shade base 2, and the tail end of the threaded adjusting rod 42 extends out of the lamp shade base 2 and is fixedly connected with the adjusting dial 43; one end of the light source mounting component 3 is slidably disposed on the guide rod 41, and the other end is connected to the threaded adjusting rod 42 in a transmission manner. In particular, the position adjustment assembly 4, in operation: by dialing the adjusting dial 43, the screw thread adjusting rod 42 is driven to rotate, and at this time, the screw thread adjusting rod 42 is in transmission with the light source mounting component 3, so that the light source mounting component 3 slides on the guide rod 41. Therefore, the position adjusting assembly 4 is simple in structure, fast and convenient in adjusting mode and high in adjusting precision, and stepless adjustment of the light source mounting assembly 3 and the movie and television lamp light source 1 is achieved.

In another embodiment of the present invention, as shown in fig. 7, the light source installation component 3 of the movie and television lamp includes an installation base 31, two clamping bases 32 and a locking unit 33, the installation base 31 is movably installed on the position adjusting component 4, two clamping bases 32 are relatively arranged and movably installed on the installation base 31, the locking unit 33 is arranged on the clamping bases 32 in a penetrating manner to adjust two distances between the clamping bases 32, and further, the clamping of the movie and television light source 1 is fixed on the clamping bases 32.

As shown in fig. 7, the locking unit 33 in the movie lamp includes a locking screw 331, a locking nut 332, a locking shift lever 333, and a holding spring 334, the locking screw 331 is disposed through the two holders 32, the locking nut 332 is screwed to the end of the locking screw 331, the locking shift lever 333 is hinged to the front end of the locking screw 331, and the holding spring 334 is sleeved on the locking screw 331 and respectively holds the holders 32 and the locking shift lever 333.

Specifically, the light source mounting assembly 3, when fixing the movie lamp light source 1: by shifting the locking shift lever 333, the locking screw 331 is driven to rotate on the locking nut 332, the distance between the two clamping seats 32 is adjusted, then the connecting pin 17 in the video lamp light source 1 is inserted between the two clamping seats 32, and finally the locking shift lever 333 is shifted reversely, the locking screw 331 is driven to rotate on the locking nut 332, the distance between the two clamping seats 32 is adjusted, and under the action of the abutting spring 334, the two clamping seats 32 are clamped with each other, so that the video lamp light source 1 is clamped and fixed on the two clamping seats 32. It can be seen that the light source installation component 3 has a simple structure, a quick and simple fixing mode and a good fixing effect, and ensures the stable connection of the movie and television light source 1.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A movie and television light source comprises a mounting shell, a radiator, an LED light source, an optical lens, a cooling fan, a driving circuit board and connecting pins; the method is characterized in that: the radiator is fixedly arranged at the upper part of the inner cavity of the mounting shell, and the LED light source is arranged on the front end face of the radiator and exposed out of the mounting shell; the optical lens cover is arranged outside the LED light source and fixed on the front end face of the mounting shell; the heat radiation fan is fixed on the rear end face of the mounting shell and communicated with the radiator; the center lines of the optical lens, the LED light source, the radiator and the heat radiation fan are coincided; the driving circuit board is fixedly arranged at the lower part of the inner cavity of the mounting shell to drive the LED light source to work; the connecting pins are fixedly arranged at the bottom of the mounting shell and are electrically connected with the driving circuit board.

2. A movie or television light source as in claim 1 wherein: the mounting shell comprises a bottom shell seat, a bottom shell panel, an upper shell seat, an upper shell panel and a top cover which are spliced and fixed with each other, the driving circuit board is inserted into an inner cavity of the bottom shell seat, and the bottom shell panel is fixed on the rear end face of the bottom shell seat so as to seal the driving circuit board; the connecting pins are fixed on the bottom surface of the bottom shell seat; the upper shell seat is fixed on the top surface of the bottom shell seat, the radiator is fixed in an inner cavity of the upper shell seat, and the upper shell panel and the top cover are respectively fixed on the rear end surface and the top surface of the upper shell seat so as to seal the radiator; the optical lens is fixed on the front end face of the upper shell panel; the heat radiation fan is fixed on the rear end face of the upper shell panel.

3. A movie or television light source as in claim 2 wherein: a light source exposure hole is formed in the front end face of the upper shell seat in a penetrating mode, and the LED light source is exposed out of the upper shell seat through the light source exposure hole; the optical lens is fixed on the outer edge of the light source exposure hole and seals the light source exposure hole.

4. A movie or television light source as in claim 2 wherein: the rear end face of the upper shell panel is provided with a heat dissipation circulation hole in a penetrating mode, the heat dissipation fan is fixed to the outer edge of the heat dissipation circulation hole and seals the heat dissipation circulation hole, and therefore heat dissipated by the heat dissipater is extracted from the heat dissipation circulation hole and is exhausted to the outside.

5. A movie or television light source as in claim 2 wherein: auxiliary radiating holes are formed in the left end face and the right end face of the upper shell seat in a penetrating mode, and therefore heat emitted by the radiator can be conveniently discharged from the auxiliary radiating holes in the two sides.

6. A movie and television lamp is characterized in that: the film and television lamp comprises a lamp shade base, a light source mounting component, a position adjusting component and the film and television lamp light source according to any one of claims 1 to 5, wherein the position adjusting component is arranged at the bottom of the lamp shade base, the light source mounting component is movably mounted on the position adjusting component, and the film and television lamp light source is fixedly mounted on the light source mounting component; and the positions of the light source mounting assembly and the movie and television lamp light source in the lamp shade seat are adjusted through the position adjusting assembly.

7. A movie and television light fixture according to claim 6, characterized in that: the position adjusting assembly comprises a guide rod, a thread adjusting rod and an adjusting drive plate, and the guide rod and the thread adjusting rod are arranged on two sides of the bottom of the lampshade base in parallel; the lamp shade driving plate is fixedly connected with the lamp shade seat, the lamp shade seat is fixedly connected with the lamp shade seat, and the lamp shade seat is fixedly connected with the lamp shade seat; one end of the light source mounting assembly is arranged on the guide rod in a sliding mode, and the other end of the light source mounting assembly is connected to the threaded adjusting rod in a transmission mode.

8. A movie and television light fixture according to claim 6, characterized in that: the light source installation assembly comprises an installation base, two clamping seats and a locking unit, wherein the installation base is movably installed on the position adjusting assembly, the two clamping seats are oppositely arranged and movably installed on the installation base, the locking unit penetrates through the two clamping seats to adjust the distance between the two clamping seats, and then the movie and television light source is clamped and fixed on the two clamping seats.

9. A movie and television light fixture as recited in claim 8, wherein: the locking unit comprises locking screws, locking nuts, a locking deflector rod and a supporting spring, the locking screws penetrate through the two clamping seats, the locking nuts are in threaded connection with the tail ends of the locking screws, the locking deflector rod is hinged to the front ends of the locking screws, and the supporting spring is sleeved on the locking screws and supports the clamping seats and the locking deflector rod respectively.