Advertising cap pushed on ground

By installing a surround display screen, support frame, cleaning brush and heat dissipation device on the ground-promoting advertising cap, the problems of display screen shaking and falling off and inconvenient cleaning are solved, the advertising exposure rate and equipment stability are improved, and the service life is extended.

CN223392028UActive Publication Date: 2025-09-30付崇伟
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423104695.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-09-30
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

The display screen of existing ground-promoting advertising caps is prone to falling off or being damaged due to shaking or bumping during long-term use, and is inconvenient to clean, which affects the advertising effect and the life of the equipment.

Method used

The advertising cap is equipped with a surround display screen, a support frame, a power supply component, a cleaning brush system and a heat dissipation device. The solar panels are used to provide electricity, the support frame is used to improve stability, the cleaning brush is used for rapid cleaning, and the heat dissipation device is used to extend the life of the equipment.

Benefits of technology

It improves advertising exposure and brand awareness, reduces the risk of display screen falling and damage, ensures cleaning efficiency and equipment life, and enhances the stability and convenience of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223392028U_ABST
    Figure CN223392028U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of ground pushing equipment, and particularly relates to a ground pushing advertising cap which comprises a cap shell. Earmuffs are fixed in the middle of the side wall of the helmet shell; the pair of earmuffs is symmetrically arranged on the two sides of the helmet shell. The middle part of the side wall of the helmet shell is fixedly connected with a fixed seat; a supporting frame is assembled on the side wall of the top of the fixing base. A first fixing frame is fixedly connected to the middle of the side wall of the supporting frame. By arranging the surrounding display screen on the advertisement cap, advertisement content can be displayed to surrounding crowds in all directions, so that advertisement information covers more potential customers, the exposure rate and the influence of advertisements are improved, the surrounding display screen serves as a novel advertisement form, the cognition of consumers on brands can be improved, and the advertisement effect is improved. By arranging the helmet shell, the supporting frame, the first fixing frame and the second fixing frame, the stability of the supporting frame on the helmet shell can be improved, and the risk that the display screen falls off or is damaged due to shaking or bumping in the walking or moving process of the ground pushing personnel is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of ground promotion equipment, in particular to a ground promotion advertising cap. Background Art

[0002] A promotional cap is a hat that combines advertising with the functions of an everyday item. It is a hat with advertising elements added to it for use in ground promotion activities. It is usually printed with advertising information such as the company's name, logo, contact information, or slogan. The purpose is to achieve the purpose of widely disseminating advertising information through people's daily wear and movement.

[0003] Ground promotion hats are widely used in various ground promotion activities, such as product launches, promotional activities, exhibitions, outdoor advertising, etc. In these occasions, ground promotion personnel will wear advertising hats to deliver advertising information to the target audience in a mobile and interactive way.

[0004] After long-term use and observation, it was found that combining the ground-promoting advertising cap with the display screen can display more information, provide stronger visual impact, and attract more attention.

[0005] To this end, the utility model provides a ground promotion advertising cap. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, a ground promotion advertising hat is proposed.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the utility model is a ground promotion advertising hat, comprising a hat shell; an earmuff is fixed in the middle of the side wall of the hat shell; the earmuffs are a pair and symmetrically arranged on both sides of the hat shell; a fixing seat is fixed in the middle of the side wall of the hat shell; the top side wall of the fixing seat is equipped with a support frame; a first fixing frame is fixed in the middle of the side wall of the support frame; the first fixing frames are multiple and are evenly arranged on the side wall of the support frame; the other end of the first fixing frame is fixed to the hat shell; a second fixing frame is fixed in the middle of the side wall of the support frame; the second fixing frames are multiple and are evenly arranged on the side wall of the support frame; the other end of the second fixing frame is fixed to the hat shell; a display screen is equipped in the middle of the side wall of the support frame; the display screen is a The cap shell is provided with a playback component on the top side wall of the support frame; the power supply component is provided on the top side wall of the support frame; the power supply component is arranged above the cap shell; this step can display the advertising content to the surrounding people in an all-round way by arranging a surround-type display screen on the advertising cap, so that the advertising information covers more potential customers, and the exposure and influence of the advertisement are improved. The surround-type screen, as a novel form of advertising, can enhance consumers' awareness of the brand and leave a deep impression on consumers. By arranging the cap shell, the support frame, the first fixing frame and the second fixing frame, the stability of the support frame on the cap shell can be improved, reducing the risk of the display screen falling off or being damaged due to shaking or bumping during the walking or moving of the sales staff.

[0008] Preferably, a pair of slots are provided in the middle of the side walls of the support frame; the slots and the display screen are arranged correspondingly; multiple springs are fixed in the middle of the inner side walls of the slots; a movable seat is fixedly connected to the other end of the spring; a cleaning brush is provided on the bottom side wall of the movable seat; the cleaning brush is made of elastic material; multiple grooves are provided in the middle of the side walls of the support frame; multiple grooves are symmetrically arranged on both sides of the slots; the movable seat slides inside the grooves; a pull rope is fixed to the bottom side wall of the movable seat; the end of the pull rope is fixedly connected to a traction block; this step can remove dust, fingerprints and other stains accumulated on the surface of the display screen by arranging springs, movable seats, cleaning brushes, slots, pull ropes and traction blocks. The cleaned display screen can maintain its best display effect and performance, reduce image blur or brightness reduction caused by accumulation of stains and dust, and using this setting to clean the display screen is faster and more efficient. Field sales personnel can complete the cleaning of the display screen in a short time and continue their promotion activities.

[0009] Preferably, a plurality of heat dissipation grooves are provided on the bottom side wall of the fixing base; a motor is fixed to the middle of the inner side wall of the heat dissipation groove; a plurality of fan blades are fixedly connected to the output end of the motor; a plurality of air guide tubes are fixedly connected to the top side wall of the fixing base; the air guide tubes and the heat dissipation grooves are arranged correspondingly; the fan blades are arranged inside the air guide tubes; this step can effectively dissipate the heat inside the display screen by arranging the motor, fan blades and air guide tubes, so that the electronic components inside the display screen work at a suitable temperature, reduce the aging or damage of the components caused by overheating, help to extend the service life of the display screen, and improve the overall performance of the ground promotion advertising cap.

[0010] Preferably, the bottom side wall of the earmuff on one side is rotatably connected to a first movable plate; a torsion spring is provided between the first movable plate and the earmuff; the bottom side wall of the earmuff on the other side is rotatably connected to a second movable plate; a torsion spring is provided between the second movable plate and the earmuff; a groove is provided in the middle of the side wall of the first movable plate; a protrusion is fixedly connected to the middle of the side wall of the second movable plate; the protrusion and the groove are arranged correspondingly; the bottom side walls of the first movable plate and the second movable plate are both fixedly connected to magnetic blocks; this step can firmly fix the advertising cap on the head by setting the first movable plate, the second movable plate, the protrusion and the magnetic block to prevent it from slipping during movement or activity. This stability ensures that the advertising cap can always remain in the correct position when the sales personnel perform promotion tasks, thereby effectively displaying the advertising content.

[0011] Preferably, the playback component includes a loudspeaker; the loudspeaker is fixedly connected to the top of the support frame; this step realizes dual visual and audio transmission by combining the display screen and the loudspeaker, which can more comprehensively attract the attention of the target audience. The visual information is displayed through the display screen, and the auditory information is conveyed through the loudspeaker. The two complement each other and jointly improve the information dissemination effect.

[0012] Preferably, the power supply component includes a solar panel; the solar panel is fixedly connected to the top of the support frame; this step can provide a continuous power supply for the display screen and the loudspeaker by setting up the solar panel, thereby improving the flexibility and convenience of the ground promotion activities, allowing the ground promotion personnel to carry out promotion activities in more places that traditional billboards cannot cover.

[0013] Preferably, an infrared counter is installed in the middle of the side wall of the support frame; the infrared counters are a pair and are symmetrically arranged on both sides of the support frame; this step can count the number of people passing by the advertising hat in real time by setting up the infrared counters, providing specific data support for the advertising effect, and helping advertisers to more accurately evaluate the dissemination range and influence of the advertisement.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model describes a ground-promotion advertising cap, which can display the advertising content to the surrounding people in an all-round manner by arranging a surround-type display screen on the advertising cap, so that the advertising information can cover more potential customers, thereby increasing the exposure and influence of the advertisement. Moreover, the surround-type screen, as a novel form of advertising, can enhance consumers' awareness of the brand and leave a deep impression on consumers. By arranging the cap shell, the support frame, the first fixing frame and the second fixing frame, the stability of the support frame on the cap shell can be improved, thereby reducing the risk of the display screen falling off or being damaged due to shaking or bumping when the ground-promotion personnel are walking or moving.

[0016] 2. The utility model describes a ground-promotion advertising cap, which can remove dust, fingerprints and other stains accumulated on the surface of the display screen by setting a spring, a movable seat, a cleaning brush, a groove, a pull rope and a traction block. The cleaned display screen can maintain its best display effect and performance, reduce image blur or brightness reduction caused by the accumulation of stains and dust, and use this setting to clean the display screen more quickly and efficiently. The ground-promotion personnel can complete the cleaning work of the display screen in a short time and continue their promotion activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the matching structure of the cap shell and the fixing frame in the utility model;

[0020] Figure 3 This is a schematic diagram of the matching structure of the fan blades and the support frame in the utility model;

[0021] Figure 4 It is a schematic diagram of the matching structure of the movable plate and the earmuff in the utility model.

[0022] Legend:

[0023] 1. Cap shell; 11. Earmuffs; 12. Fixing seat; 13. Support frame; 14. First fixing frame; 15. Second fixing frame; 16. Display screen; 2. Notch; 21. Spring; 22. Movable seat; 23. Cleaning brush; 24. Channel; 25. Drawstring; 26. Traction block; 3. Heat sink; 31. Motor; 32. Fan blades; 33. Air guide tube; 4. First movable plate; 41. Second movable plate; 42. Bump; 43. Magnetic block; 5. Loudspeaker; 6. Solar panel; 7. Infrared counter. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Specific examples are given below.

[0026] like Figures 1 to 4 As shown, a ground promotion advertising hat according to an embodiment of the present invention comprises a hat shell 1; an earmuff 11 is fixed to the middle of the side wall of the hat shell 1; the earmuffs 11 are a pair and are symmetrically arranged on both sides of the hat shell 1; a fixing seat 12 is fixed to the middle of the side wall of the hat shell 1; a support frame 13 is assembled on the top side wall of the fixing seat 12; a first fixing frame 14 is fixed to the middle of the side wall of the support frame 13; the first fixing frames 14 are multiple and are evenly arranged on the side wall of the support frame 13; the other end of the first fixing frame 14 is fixed to the hat shell 1; a fixing frame 12 is fixed to the middle of the side wall of the support frame 13 The second fixing frame 15; there are multiple second fixing frames 15 and they are evenly arranged on the side wall of the support frame 13; the other end of the second fixing frame 15 is fixed to the cap shell 1; a display screen 16 is installed in the middle of the side wall of the support frame 13; the display screens 16 are a pair and are symmetrically arranged on both sides of the cap shell 1; a playback component is provided on the top side wall of the support frame 13; a power supply component is provided on the top side wall of the support frame 13; the power supply component is located above the cap shell 1; when working, the salesperson arrives at the designated sales square, then puts on the cap shell 1 on his head and covers the earmuffs 11 It is located outside the ear. At this time, the display screen 16 is connected to the power supply component and the playback component respectively. The power supply component will provide power to the display screen 16, so that the display screen 16 can be started and the preset advertising words or advertising videos can be played on the display screen 16 in a loop. At the same time, the playback component will amplify and transmit the sound of the display screen 16 outward, so that people passing by in the square can hear the advertising slogans coming from the inside of the display screen 16. This step can display the advertising content to the surrounding people in all directions by setting a surround-type display screen 16 on the advertising hat, so that the advertising information can cover more potential customers, thereby increasing the exposure and influence of the advertisement. The surround-type screen, as a novel form of advertising, can enhance consumers' awareness of the brand and leave a deep impression on consumers. By setting the hat shell 1, the support frame 13, the first fixing frame 14 and the second fixing frame 15, the stability of the support frame 13 on the hat shell 1 can be improved, reducing the risk of the display screen 16 falling off or being damaged due to shaking or bumping during walking or moving of the sales staff.

[0027] like Figures 1 to 3As shown, a pair of notches 2 are provided in the middle of the side wall of the support frame 13; the notches 2 and the display screen 16 are arranged correspondingly; a plurality of springs 21 are fixed in the middle of the inner side wall of the notch 2; a movable seat 22 is fixedly connected to the other end of the spring 21; a cleaning brush 23 is provided on the bottom side wall of the movable seat 22; the cleaning brush 23 is made of elastic material; a plurality of grooves 24 are provided in the middle of the side wall of the support frame 13; a plurality of grooves 24 are symmetrically arranged on both sides of the notch 2; the movable seat 22 slides inside the groove 24; a pull rope 25 is fixed to the bottom side wall of the movable seat 22; a traction block 26 is fixedly connected to the end of the pull rope 25; during operation, when dust accumulates on the surface of the display screen 16 so that the display is not clear, the ground pusher pulls a plurality of traction blocks 26, and at this time the traction block 26 will move downward with the pull rope 25, so that the pull rope 25 moves with the movable The movable seat 22 moves downward synchronously. During the downward movement of the movable seat 22, the cleaning brush 23 at its bottom will clean the surface of the display screen 16. When the local salesperson releases the traction block 26, the movable seat 22 will return to the top with the cleaning brush 23 under the action of multiple springs 21. This step can remove dust, fingerprints and other stains accumulated on the surface of the display screen 16 by setting the spring 21, movable seat 22, cleaning brush 23, groove 24, pull rope 25 and traction block 26. The cleaned display screen 16 can maintain its best display effect and performance, reduce image blur or brightness reduction caused by stains and dust accumulation, and use this setting to clean the display screen 16 faster and more efficiently. The local salesperson can complete the cleaning of the display screen 16 in a short time and continue their promotion activities.

[0028] like Figures 1 to 3 As shown, a plurality of heat dissipation grooves 3 are provided on the bottom side wall of the fixing seat 12; a motor 31 is fixed in the middle of the inner side wall of the heat dissipation groove 3; a plurality of fan blades 32 are fixedly connected to the output end of the motor 31; a plurality of air ducts 33 are fixedly connected to the top side wall of the fixing seat 12; the air ducts 33 and the heat dissipation grooves 3 are arranged correspondingly; the fan blades 32 are arranged inside the air ducts 33; during operation, when the ground promotion personnel feel the heat on their heads, they start a plurality of motors 31, at this time the motor 31 will drive the plurality of fan blades 32 on the output end to rotate, and at the same time the air duct 33 will blow the air flow fanned by the fan blades 32 to the surface of the support frame 13, and this step can effectively dissipate the heat inside the display screen 16 by setting the motor 31, fan blades 32 and air duct 33, so that the electronic components inside the display screen 16 can operate at a suitable temperature, reducing the aging or damage of the components caused by overheating, helping to extend the service life of the display screen 16, and improving the overall performance of the ground promotion advertising cap.

[0029] like Figure 1 and Figure 4As shown, the bottom side wall of one side earmuff 11 is rotatably connected to the first movable plate 4; a torsion spring is provided between the first movable plate 4 and the earmuff 11; the bottom side wall of the other side earmuff 11 is rotatably connected to the second movable plate 41; a torsion spring is provided between the second movable plate 41 and the earmuff 11; a groove is provided in the middle of the side wall of the first movable plate 4; a protrusion 42 is fixedly connected to the middle of the side wall of the second movable plate 41; the protrusion 42 and the groove are correspondingly arranged; the bottom side walls of the first movable plate 4 and the second movable plate 41 are both fixedly connected to the magnetic block 43; when working, after the local pusher puts the cap shell 1 on his head, he pulls the bottom of the earmuff 11 The first movable plate 4 and the second movable plate 41, because the protrusion 42 and the groove are set correspondingly, the protrusion 42 will be engaged in the groove at this time, and the first movable plate 4 and the second movable plate 41 will be fixed together under the action of the mutual attraction of the magnetic block 43. This step, by setting the first movable plate 4, the second movable plate 41, the protrusion 42 and the magnetic block 43, can firmly fix the advertising cap on the head to prevent it from slipping during movement or activity. This stability ensures that the advertising cap can always remain in the correct position when the sales staff performs promotion tasks, thereby effectively displaying the advertising content.

[0030] like Figure 1 and Figure 2 As shown, the playback component includes a loudspeaker 5; the loudspeaker 5 is fixedly connected to the top of the support frame 13; this step realizes dual audio-visual communication by combining the display screen 16 and the loudspeaker 5, which can more comprehensively attract the attention of the target audience. The visual information is displayed through the display screen 16, and the auditory information is conveyed through the loudspeaker 5. The two complement each other and jointly enhance the information dissemination effect.

[0031] like Figure 2 As shown, the power supply component includes a solar panel 6; the solar panel 6 is fixedly connected to the top of the support frame 13; when working, the solar panel 6 will convert the received solar energy into electrical energy, and provide it to the display screen 16 and the loudspeaker 5 for use. This step can provide a continuous power supply for the display screen 16 and the loudspeaker 5 by setting up the solar panel 6, thereby improving the flexibility and convenience of ground promotion activities, allowing ground promotion personnel to carry out promotion activities in more places that traditional billboards cannot cover.

[0032] like Figures 1 to 3 As shown, an infrared counter 7 is installed in the middle of the side wall of the support frame 13; the infrared counters 7 are a pair and are symmetrically arranged on both sides of the support frame 13; this step can count the number of people passing by the advertising hat in real time by setting the infrared counters 7, providing specific data support for the advertising effect, and helping advertisers to more accurately evaluate the dissemination range and influence of the advertisement.

[0033] Working principle: The salesperson arrives at the designated sales square, then puts on the hat shell 1 on the head and sets the earmuffs 11 on the outside of the ears. At this time, the display screen 16 is connected to the power supply component and the playback component respectively. The power supply component will provide power to the display screen 16, so that the display screen 16 can be started, and the preset advertising words or advertising videos will be played on the display screen 16 in a loop. At the same time, the playback component will amplify and transmit the sound of the display screen 16 outward, so that people passing by in the square can hear the advertising words coming from the inside of the display screen 16. When dust accumulates on the surface of the display screen 16 and the display is not clear, the salesperson pulls multiple traction blocks 26. At this time, the traction blocks 26 will move downward with the pull rope 25, so that the pull rope 25 will move downward with the movable seat 22. During the downward movement of the movable seat 22, the cleaning brush 2 at the bottom thereof 3 will clean the surface of the display screen 16. When the local promoter releases the traction block 26, the movable seat 22 will return to the top with the cleaning brush 23 under the action of multiple springs 21. When the local promoter feels the heat on the top of the head, the multiple motors 31 are started. At this time, the motor 31 will drive the multiple fan blades 32 on the output end to rotate. At the same time, the air guide tube 33 will blow the air flow fanned by the fan blades 32 to the surface of the support frame 13. After the local promoter puts the hat shell 1 on the head, he pulls the first movable plate 4 and the second movable plate 41 at the bottom of the earmuff 11. Because the protrusion 42 and the groove are correspondingly arranged, the protrusion 42 will be engaged in the groove at this time, and the first movable plate 4 and the second movable plate 41 will be fixed together under the action of the mutual attraction of the magnetic block 43. The solar panel 6 will convert the received solar energy into electrical energy, which is provided to the display screen 16 and the loudspeaker 5 for use.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A ground promotion advertising hat, comprising a hat shell (1); characterized in that: An earmuff (11) is fixed to the middle of the side wall of the cap shell (1); the earmuffs (11) are a pair and are symmetrically arranged on both sides of the cap shell (1); a fixing seat (12) is fixed to the middle of the side wall of the cap shell (1); a support frame (13) is assembled on the top side wall of the fixing seat (12); a first fixing frame (14) is fixed to the middle of the side wall of the support frame (13); the first fixing frames (14) are multiple and are evenly arranged on the side wall of the support frame (13); the other end of the first fixing frame (14) is fixed to the cap shell (1); the support frame (1 3) A second fixing frame (15) is fixedly connected to the middle of the side wall; the second fixing frames (15) are multiple and are evenly arranged on the side wall of the support frame (13); the other end of the second fixing frame (15) is fixedly connected to the cap shell (1); a display screen (16) is installed in the middle of the side wall of the support frame (13); the display screens (16) are a pair and are symmetrically arranged on both sides of the cap shell (1); a playback component is provided on the top side wall of the support frame (13); a power supply component is provided on the top side wall of the support frame (13); the power supply component is arranged above the cap shell (1).

2. The advertising cap for ground promotion according to claim 1, characterized in that: A pair of notches (2) are provided in the middle of the side wall of the support frame (13); the notches (2) and the display screen (16) are arranged correspondingly; a plurality of springs (21) are fixed in the middle of the inner side wall of the notch (2); the other end of the spring (21) is fixedly connected to a movable seat (22); a cleaning brush (23) is provided on the bottom side wall of the movable seat (22); the cleaning brush (23) is made of elastic material; a plurality of grooves (24) are provided in the middle of the side wall of the support frame (13); the plurality of grooves (24) are symmetrically arranged on both sides of the notch (2); the movable seat (22) slides inside the grooves (24); a pull rope (25) is fixedly connected to the bottom side wall of the movable seat (22); the end of the pull rope (25) is fixedly connected to a traction block (26).

3. The advertising cap for ground promotion according to claim 1, characterized in that: The bottom side wall of the fixing seat (12) is provided with a plurality of heat dissipation grooves (3); a motor (31) is fixed in the middle of the inner side wall of the heat dissipation groove (3); a plurality of fan blades (32) are fixedly connected to the output end of the motor (31); a plurality of air guide tubes (33) are fixedly connected to the top side wall of the fixing seat (12); the air guide tubes (33) and the heat dissipation grooves (3) are arranged correspondingly; and the fan blades (32) are arranged inside the air guide tubes (33).

4. The ground promotion advertising hat according to claim 1, characterized in that: The bottom side wall of the earmuff (11) on one side is rotatably connected to a first movable plate (4); a torsion spring is provided between the first movable plate (4) and the earmuff (11); the bottom side wall of the earmuff (11) on the other side is rotatably connected to a second movable plate (41); a torsion spring is provided between the second movable plate (41) and the earmuff (11); a groove is provided in the middle of the side wall of the first movable plate (4); a protrusion (42) is fixedly connected to the middle of the side wall of the second movable plate (41); the protrusion (42) and the groove are correspondingly arranged; and the bottom side walls of both the first movable plate (4) and the second movable plate (41) are fixedly connected to magnetic blocks (43).

5. The ground promotion advertising hat according to claim 1, characterized in that: The playback component includes a loudspeaker (5); the loudspeaker (5) is fixedly connected to the top of the support frame (13).

6. The advertising cap for ground promotion according to claim 1, characterized in that: The power supply assembly includes a solar panel (6); the solar panel (6) is fixedly connected to the top of the support frame (13).

7. The ground promotion advertising cap according to claim 6, characterized in that: An infrared counter (7) is mounted in the middle of the side wall of the support frame (13); the infrared counters (7) are a pair and are symmetrically arranged on both sides of the support frame (13).