Virtual training teaching aid with head protection structure

Abstract

The invention provides a virtual training teaching aid with a head protection structure, and relates to the field of virtual training teaching aids. A protection structure is fixedly arranged on the outer side of the protection frame, and connecting assemblies are fixedly arranged on the two sides of the protection frame. The number of the connecting assemblies is two, and a wearing structure is further fixedly arranged at the bottom of each connecting assembly. A connecting assembly, a connecting plate and a protection structure are arranged; a trainee can wear the teaching aid, so that the convenience of the teaching aid is enhanced; meanwhile, by means of a protection structure, the head of the trainee can be prevented from colliding with external articles, the safety performance of the teaching aid is enhanced, and the problem that the trainee cannot wear the VR glasses conveniently due to the fact that the VR glasses shield the eyes of the trainee when a bandage is matched with a hook-and-loop fastener for wearing is solved; and the VR glasses teaching aid needs to be worn by others, so that the convenience of the VR glasses teaching aid is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of virtual training teaching aids, and in particular to a virtual training teaching aid with a head protection structure. Background Art

[0002] Virtual training is a method that uses modern information technology such as virtual reality technology and network technology to provide trainees with a virtual environment so that they can learn and train in this environment. Currently, virtual training usually uses VR glasses teaching aids to provide a virtual environment.

[0003] Current VR glasses teaching aids are usually worn using straps and Velcro. When worn using straps and Velcro, the VR glasses block the trainees' eyes, making it inconvenient for the trainees to wear the VR glasses. This results in the need for help from others to wear the glasses, which reduces the convenience of the VR glasses teaching aids. Currently known VR glasses teaching aids are not equipped with head protection structures, so when the trainees move around in the simulated environment, the trainees' heads may hit external objects, reducing the safety of the trainees when using them. Summary of the invention

[0004] In view of this, the present invention provides a virtual training teaching aid with a head protection structure, which has a connecting component, a connecting plate and a protective structure; the trainee can wear the teaching aid himself, thereby enhancing the convenience of the teaching aid; at the same time, the protective structure can be used to prevent the trainee's head from hitting external objects, thereby enhancing the safety performance of the teaching aid.

[0005] The present invention provides a virtual training teaching aid with a head protection structure, which specifically comprises: a glasses body and a protective frame; mounting seats are integrally arranged on both sides of the glasses body, and a connecting plate is fixedly arranged on the outside of the mounting seat; a fixing block is fixedly arranged inside the connecting plate, and the fixing block is arranged in a right-angled triangle structure, and the fixing blocks are fixed in a straight line arrangement; a protective ring is fixedly arranged on the outside of the glasses body, and the protective ring is arranged to be made of latex material; the protective frame is arranged on the outside of the glasses body, and a fixing plate is fixedly arranged on the front side of the protective frame; an auxiliary frame is fixedly arranged on the top of the glasses body, and a fixing plate is movably arranged inside the auxiliary frame;

[0006] A protective structure is fixedly arranged on the outside of the protective frame, and connecting components are fixedly arranged on both sides of the protective frame; the connecting components are arranged at two locations, and a wearing structure is also fixedly arranged on the bottom of the connecting components; a protective airbag A is fixedly arranged inside the protective frame, and a protective airbag B is integrally arranged at the bottom of the protective airbag A; the protective airbag B is arranged in a ring array, and the protective airbag B is communicated with the protective airbag A; an air intake pipe is fixedly arranged inside one side of the protective frame, and one end of the air intake pipe is fixedly arranged inside the protective airbag A, and a one-way valve A is fixedly installed inside the air intake pipe.

[0007] Furthermore, a sliding rod is slidably arranged inside the top side of the auxiliary frame, and a bottom plate is fixedly arranged at the bottom end of the sliding rod, and the bottom of the bottom plate is fitted with the top of the fixed plate; a spring member is arranged between the top of the bottom plate and the inner side of the auxiliary frame, and the spring member is located on the outside of the sliding rod, and the sliding rod is symmetrically arranged in two groups.

[0008] Furthermore, a connecting pipe head is provided at the other end of the air intake pipe through a threaded connection, and an elastic inflatable bag is fixedly provided on the outside of the connecting pipe head, and a one-way valve B is fixedly provided inside one side of the elastic inflatable bag; the elastic inflatable bag uses the air intake pipe and its internal one-way valve A to fill gas into the protective airbag A and the protective airbag B, and the elastic inflatable bag uses the one-way valve B to inhale gas.

[0009] Furthermore, the connecting assembly includes: a connecting seat, a fixed frame, a sliding plate, a cross bar A, a positioning plate A and a pull rod A; the connecting seat is fixedly arranged on both sides of the protective frame, and the connecting seat is symmetrically arranged in two groups, and a connecting plate is movably arranged inside the connecting seat; the fixed frame is fixedly arranged on the outside of the connecting seat, and the fixed frame is communicated with the inside of the connecting seat; the sliding plate is slidably arranged between the connecting seat and the inside of the fixed frame; the cross bar A is slidably arranged inside the fixed frame, and the cross bar A and the sliding plate are arranged to be fixedly connected, and a spring member is arranged between the top of the cross bar A and the inside of the fixed frame; the positioning plate A is fixedly arranged at the top of the cross bar A, and the outside of the positioning plate A is in contact with the outside of the fixed frame; the pull rod A is fixedly arranged on the outside of the positioning plate A.

[0010] Furthermore, a connecting block is fixedly arranged on the outer side of the sliding plate, and the connecting block is arranged in a right triangle; the hypotenuse of the connecting block is in contact with the hypotenuse of the fixed block, and the connecting blocks are arranged in a straight line; a square hole is opened inside one side of the sliding plate.

[0011] Furthermore, the connecting component also includes: a self-locking block, a cross bar B, a positioning plate B and a pull rod B; the self-locking block is slidably arranged inside one side of the fixed frame, and the side of the end of the self-locking block close to the sliding plate is arranged as a bevel structure, and the self-locking block is slidably arranged inside the square hole; the cross bar B is fixedly arranged on the outside of the self-locking block, and the cross bar B is slidably arranged inside the fixed frame, and a spring member is arranged between the top of the cross bar B and the inside of the fixed frame; the positioning plate B is fixedly arranged at the top of the cross bar B, and the outside of the positioning plate B is in contact with the outside of the fixed frame; the pull rod B is fixedly arranged on the outside of the positioning plate B.

[0012] Furthermore, the wearing structure includes: an elastic band, a female buckle and a sub-buckle; the number of elastic bands is set to two groups, and the two groups of elastic bands are respectively fixed at the bottom of the connecting seat; the female buckle is fixed at the bottom end of one group of elastic bands; the sub-buckle is fixed at the bottom end of another group of elastic bands, and the sub-buckle is clamped inside the female buckle.

[0013] Furthermore, the protective structure includes: a spring shock absorber rod A and a buffer frame; the spring shock absorber rod A is fixedly arranged on the outside of the protective frame, and the spring shock absorber rod A is arranged in a ring array; the buffer frame is fixedly arranged on the outside of the telescopic end of the spring shock absorber rod A, and the buffer frame has a certain elasticity.

[0014] Furthermore, the protective structure also includes: a spring shock absorber rod B and a protective plate; the spring shock absorber rod B is fixedly arranged on the rear side of the protective frame, and the spring shock absorber rod B is arranged in an array; the protective plate is fixedly arranged on the outside of the telescopic end of the spring shock absorber rod B, and the protective plate has a certain elasticity, and the protective plate is arranged as an arc structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention is provided with a cross bar A, a sliding plate and a fixed block, so that when the connecting plate is inserted into the connecting seat, the fixed block can use the oblique edge to push the connecting block into the fixing frame. When the glasses body reaches the trainee's eye position, the spring member uses the cross bar A and the sliding plate to drive the connecting block to reset, so that the right-angle side of the connecting block fits with the right-angle side of the fixed block; thereby, the connecting plate cannot be pulled out of the connecting seat; the glasses body is quickly fixed; at the same time, when the connecting plate is inserted into the connecting seat, the glasses body does not block the trainee's eyes, thereby preventing the trainee from being inconvenient to wear the VR glasses due to the VR glasses blocking the trainee's eyes and requiring other people to help wear them; the convenience of VR glasses teaching aids is enhanced.

[0017] 2. The present invention, by providing a mother buckle, a sub-buckle and an elastic belt, can enable the protective frame to be quickly worn on the trainee's head; at the same time, the protective airbag A and the protective airbag B can be used to fill the gap between the trainee's head and the protective frame. While the protective airbag A and the protective airbag B are used to protect the trainee's head, the protective airbag A and the protective airbag B can be used to enhance the fixing effect of the protective frame, which is beneficial to the preliminary protection of the trainee's head; and by using the spring shock-absorbing rod A and the buffer frame and the spring shock-absorbing rod B and the protective plate, when the trainee's head is hit, the impact force can be offset by the protective plate and the buffer frame; thereby, the trainee's head can be doubly protected, thereby enhancing the safety performance of the teaching aid.

[0018] 3. The present invention, by providing a bottom plate, a spring member and a sliding rod, can enable the spring member to apply an upward pulling force to the glasses body through the auxiliary frame after the glasses body is worn; this helps to reduce the pressure of the glasses body on the trainee's face; at the same time, the protective ring made of latex material can avoid hard contact between the glasses body and the trainee's face; and thus helps to improve the comfort of the trainees during training. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the upper surface structure of the glasses body of the present invention.

[0024] Figure 3 It is a schematic cross-sectional structural diagram of the connection plate of the present invention.

[0025] Figure 4 It is a schematic diagram of the outer surface structure of the protection frame of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the protective airbag A and the protective airbag B of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the buffer frame and the shock absorbing spring rod A of the present invention.

[0028] Figure 7 It is a schematic structural diagram of the protective plate and the shock-absorbing spring rod B of the present invention.

[0029] Figure 8 It is a schematic diagram of the overall structure of the connection assembly of the present invention.

[0030] Fig. 9 It is a schematic cross-sectional structural diagram of the connecting seat and the fixing frame of the present invention.

[0031] Reference numerals list

[0032] 1. Glasses body; 101. Protective ring; 102. Mounting seat; 103. Connecting plate; 104. Fixing block; 105. Auxiliary frame; 106. Sliding rod; 107. Bottom plate;

[0033] 2. Protective frame; 201. Fixing plate; 202. Protective airbag A; 2021. Protective airbag B; 203. Air inlet pipe; 204. Connecting pipe head; 205. Elastic inflatable bag; 206. One-way valve B;

[0034] 3. Docking assembly; 301. Docking seat; 302. Fixing frame; 303. Sliding plate; 3031. Docking block; 3032. Square hole; 304. Crossbar A; 305. Positioning plate A; 306. Pull rod A; 307. Self-locking block; 308. Crossbar B; 309. Positioning plate B; 3010. Pull rod B;

[0035] 4. Wearing structure; 401. Elastic band; 402. Buckle mother buckle; 403. Buckle sub buckle;

[0036] 5. Protective structure; 501. Spring shock absorber rod A; 502. Buffer frame; 503. Spring shock absorber rod B; 504. Protective plate. DETAILED DESCRIPTION

[0037] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0038] Example 1: Please refer to Figures 1 to 9 As shown:

[0039] The present invention provides a virtual training teaching aid with a head protection structure, comprising a glasses body 1 and a protective frame 2; mounting seats 102 are integrally arranged on both sides of the glasses body 1, and a connecting plate 103 is fixedly arranged on the outer side of the mounting seat 102; a fixing block 104 is fixedly arranged inside the connecting plate 103, and the fixing block 104 is arranged in a right triangle structure, and the fixing block 104 is fixed in a straight line arrangement; a protective ring 101 is fixedly arranged on the outer side of the glasses body 1, and the protective ring 101 is arranged to be made of latex material; the protective frame 2 is arranged on the outer side of the glasses body 1, and a fixing plate 201 is fixedly arranged on the front side of the protective frame 2; an auxiliary frame 105 is fixedly arranged on the top of the glasses body 1, and a fixing plate 201 is movably arranged inside the auxiliary frame 105;

[0040] In the disclosed embodiment, a protective structure 5 is fixedly provided on the outer side of the protective frame 2, and connecting components 3 are fixedly provided on both sides of the protective frame 2; the connecting components 3 are provided at two locations, and a wearing structure 4 is also fixedly provided on the bottom of the connecting component 3; a protective airbag A202 is fixedly provided inside the protective frame 2, and a protective airbag B2021 is integrally provided at the bottom of the protective airbag A202; the protective airbag B2021 is provided in a ring array, and the protective airbag B2021 is communicated with the protective airbag A202; an air intake pipe 203 is fixedly provided inside one side of the protective frame 2, and one end of the air intake pipe 203 is fixedly provided inside the protective airbag A202, and a one-way valve A is fixedly installed inside the air intake pipe 203; the top side of the auxiliary frame 105 is provided inside A sliding rod 106 is slidably provided at the bottom, and a bottom plate 107 is fixedly provided at the bottom end of the sliding rod 106, and the bottom of the bottom plate 107 is fitted with the top of the fixed plate 201; a spring member is provided between the top of the bottom plate 107 and the inner side of the auxiliary frame 105, and the spring member is located on the outside of the sliding rod 106, and the sliding rod 106 is symmetrically provided with two groups; its specific function is: by providing the bottom plate 107, the spring member and the sliding rod 106, after the glasses main body 1 is worn, the spring member can apply an upward pulling force to the glasses main body 1 through the auxiliary frame 105; it is helpful to reduce the pressure of the glasses main body 1 on the trainee's face; at the same time, the protective ring 101 made of latex material can avoid hard contact between the glasses main body 1 and the trainee's face.

[0041] Example 2: Please refer to Figures 4 to 7As shown: On the basis of the first embodiment, the other end of the air inlet pipe 203 is provided with a connecting pipe head 204 through a threaded connection, and an elastic inflatable bag 205 is fixedly provided on the outside of the connecting pipe head 204, and a one-way valve B206 is fixedly provided inside one side of the elastic inflatable bag 205; the elastic inflatable bag 205 uses the air inlet pipe 203 and the one-way valve A inside to fill the gas into the protective airbag A202 and the protective airbag B2021, and the elastic inflatable bag 205 uses the one-way valve B206 Inhale gas; the wearing structure 4 includes: an elastic band 401, a buckle mother buckle 402 and a buckle sub-buckle 403; the number of elastic bands 401 is set to two groups, and the two groups of elastic bands 401 are respectively fixedly arranged at the bottom of the connecting seat 301; the buckle mother buckle 402 is fixedly arranged at the bottom end of one group of elastic bands 401; the buckle sub-buckle 403 is fixedly arranged at the bottom end of another group of elastic bands 401, and the buckle sub-buckle 403 is clamped inside the buckle mother buckle 402; the protective structure 5 includes: a spring shock-absorbing rod A5 01, buffer frame 502, spring shock absorbing rod B503 and protective plate 504; spring shock absorbing rod A501 is fixedly arranged on the outside of protective frame 2, and spring shock absorbing rod A501 is arranged in a ring array; buffer frame 502 is fixedly arranged on the outside of the telescopic end of spring shock absorbing rod A501, and buffer frame 502 has a certain elasticity; spring shock absorbing rod B503 is fixedly arranged on the rear side of protective frame 2, and spring shock absorbing rod B503 is arranged in an array; protective plate 504 is fixedly arranged on the spring shock absorbing rod The outer side of the telescopic end of the shock rod B503, and the protective plate 504 has a certain elasticity, and the protective plate 504 is arranged as an arc structure; its specific function is: the protective airbag A202 and the protective airbag B2021 can be used to fill the gap between the trainee's head and the protective frame 2, while the protective airbag A202 and the protective airbag B2021 are used to protect the trainee's head, and the protective airbag A202 and the protective airbag B2021 can be used to enhance the fixing effect of the protective frame 2.

[0042] Example 3: Please refer to Figure 8 and Fig. 9As shown: On the basis of the first and second embodiments, the connection assembly 3 includes: a connection seat 301, a fixed frame 302, a sliding plate 303, a cross bar A304, a positioning plate A305, a pull rod A306, a self-locking block 307, a cross bar B308, a positioning plate B309 and a pull rod B3010; the connection seat 301 is fixedly arranged on both sides of the protective frame 2, and the connection seat 301 is symmetrically arranged with two groups, and the connection seat 301 is movably provided with a connection plate 103; the fixed frame 302 is fixedly arranged on the outside of the connection seat 301, and the fixed frame 302 is communicated with the inside of the connection seat 301; the sliding plate 303 is slidably arranged between the connection seat 301 and the fixed frame The cross bar A304 is slidably arranged inside the fixed frame 302, and the cross bar A304 and the sliding plate 303 are arranged to be fixedly connected, and a spring member is arranged between the top of the cross bar A304 and the inside of the fixed frame 302; the positioning plate A305 is fixedly arranged at the top of the cross bar A304, and the outer side of the positioning plate A305 is in contact with the outer side of the fixed frame 302; the pull rod A306 is fixedly arranged on the outer side of the positioning plate A305; a connecting block 3031 is fixedly arranged on the outer side of the sliding plate 303, and the connecting block 3031 is arranged in a right triangle; the hypotenuse of the connecting block 3031 is in contact with the hypotenuse of the fixed block 104, and the connecting block 3031 The sliding plate 303 is arranged in a straight line; a square hole 3032 is provided inside one side of the sliding plate 303; the self-locking block 307 is slidably arranged inside one side of the fixed frame 302, and the end of the self-locking block 307 close to the side of the sliding plate 303 is set as a bevel structure, and the self-locking block 307 is slidably arranged inside the square hole 3032; the cross bar B308 is fixedly arranged on the outside of the self-locking block 307, and the cross bar B308 is slidably arranged inside the fixed frame 302, and a spring member is arranged between the top of the cross bar B308 and the inside of the fixed frame 302; the positioning plate B309 is fixedly arranged on the top of the cross bar B308, and the outer side of the positioning plate B309 is in contact with the outer side of the fixed frame 302 The pull rod B3010 is fixedly arranged on the outside of the positioning plate B309; its specific function is: by arranging the cross bar A304, the sliding plate 303 and the fixed block 104, when the connecting plate 103 is inserted into the connecting seat 301, the fixed block 104 can use the oblique edge to push the connecting block 3031 into the fixed frame 302. When the glasses body 1 reaches the trainee's eye position, the spring member uses the cross bar A304 and the sliding plate 303 to drive the connecting block 3031 to reset, so that the right-angle side of the connecting block 3031 fits with the right-angle side of the fixed block 104; thereby making it impossible for the connecting plate 103 to be pulled out of the connecting seat 301; so that the glasses body 1 is quickly fixed.

[0043] Specific usage and function of this embodiment: In the present invention, when in use, the protective frame 2 is placed on the trainee's head, and then the buckle buckle 403 is inserted into the buckle mother buckle 402, so that the buckle buckle 403 and the buckle mother buckle 402 use two sets of elastic bands 401 to fix the protective frame 2 on the trainee's head; then the elastic inflatable bag 205 is pinched, and the elastic inflatable bag 205 uses the one-way valve B206 and the air inlet pipe 203 and its internal one-way valve A to inflate the protective airbag A202 and the protective airbag B2021, so that the gap between the protective frame 2 and the trainee's head is filled; the two sets of connecting plates 103 are respectively inserted into the connecting seats 301 The bottom plate 107 is pulled upward at the same time, so that the bottom of the bottom plate 107 fits with the top of the fixing plate 201, and then the glasses body 1 is pushed backward, so that the connecting plate 103 pushes the connecting block 3031 into the fixing frame 302 through the fixing block 104; when the glasses body 1 reaches the trainee's eye, the connecting plate 103 stops moving, so that the spring member drives the connecting block 3031 to reset through the cross bar A304 and the sliding plate 303, so that the right angle side of the connecting block 3031 fits with the right angle side of the fixing block 104, thereby making the connecting plate 103 unable to move forward, so that the glasses body 1 is fixed and worn; at the same time, because the fixing plate 201 is fixed, The bottom plate 107 cannot move downward, so that the spring member applies an upward thrust to the auxiliary frame 105; and the auxiliary frame 105 can apply an upward pulling force to the eyeglass body 1; when the trainee's head is hit by an external object, the buffer frame 502 and the protective plate 504 squeeze the spring shock-absorbing rod A501 and the spring shock-absorbing rod B503 respectively, so that the impact force is offset, and at the same time, the protective frame 2 uses the protective airbags A202 and the protective airbags B2021 to flexibly contact the trainee's head, which is beneficial to enhance the protective effect on the trainee's head; when the eyeglass body 1 needs to be taken off, the pull rod A306 is connected with the positioning plate A305 and The cross bar A304 pulls the sliding plate 303 and the connecting block 3031 outward, so that the sliding plate 303 squeezes the self-locking block 307, and the self-locking block 307 slides outward using the outer bevel; when the square hole 3032 and the self-locking block 307 are located on the same axis, the spring member drives the self-locking block 307 to slide into the square hole 3032 through the cross bar B308, so that the sliding plate 303 is fixed; and then the connecting plate 103 can be pulled out of the connecting seat 301; the self-locking block 307 can be pulled out of the square hole 3032 through the pull rod B3010, the positioning plate B309 and the cross bar B308, so that the sliding plate 303 and the connecting block 3031 are reset.

Claims

1. A virtual training aid with a head protection structure, characterized in that: include: A pair of glasses (1) and a protective frame (2); mounting seats (102) are integrally arranged on both sides of the pair of glasses (1), and a connecting plate (103) is fixedly arranged on the outside of the mounting seats (102); a fixing block (104) is fixedly arranged inside the connecting plate (103), and the fixing block (104) is arranged in a right triangle structure, and the fixing blocks (104) are fixed in a straight line arrangement; a protective ring (101) is fixedly arranged on the outside of the pair of glasses (1), and the protective ring (101) is arranged to be made of latex material; the protective frame (2) is arranged on the outside of the pair of glasses (1), and a fixing plate (201) is fixedly arranged on the front side of the protective frame (2); an auxiliary frame (105) is fixedly arranged on the top of the pair of glasses (1), and a fixing plate (201) is movably arranged inside the auxiliary frame (105); A protective structure (5) is fixedly arranged on the outside of the protective frame (2), and connecting components (3) are fixedly arranged on both sides of the protective frame (2); the connecting components (3) are arranged at two locations, and a wearing structure (4) is also fixedly arranged at the bottom of the connecting components (3); a protective airbag A (202) is fixedly arranged inside the protective frame (2), and a protective airbag B (2021) is integrally arranged at the bottom of the protective airbag A (202); the protective airbags B (2021) are arranged in a ring array, and the protective airbags B (2021) are connected to the protective airbags A (202); an air intake pipe (203) is fixedly arranged inside one side of the protective frame (2), and one end of the air intake pipe (203) is fixedly arranged inside the protective airbag A (202), and a one-way valve A is fixedly installed inside the air intake pipe (203).

2. A virtual training aid with a head protection structure according to claim 1, characterized in that: A sliding rod (106) is slidably arranged inside the top side of the auxiliary frame (105), and a bottom plate (107) is fixedly arranged at the bottom end of the sliding rod (106), and the bottom of the bottom plate (107) is in contact with the top of the fixed plate (201); a spring member is arranged between the top of the bottom plate (107) and the inner side of the auxiliary frame (105), and the spring member is located outside the sliding rod (106), and two groups of sliding rods (106) are symmetrically arranged.

3. The virtual training teaching aid with a head protection structure according to claim 1, characterized in that: The other end of the air inlet pipe (203) is provided with a connecting pipe head (204) through a threaded connection, and an elastic inflatable bag (205) is fixedly provided on the outside of the connecting pipe head (204), and a one-way valve B (206) is fixedly provided inside one side of the elastic inflatable bag (205); the elastic inflatable bag (205) uses the air inlet pipe (203) and the one-way valve A inside it to fill gas into the interior of the protective airbag A (202) and the protective airbag B (2021), and the elastic inflatable bag (205) uses the one-way valve B (206) to inhale gas.

4. The virtual training aid with a head protection structure according to claim 1, characterized in that: The connection assembly (3) comprises: a connection seat (301), a fixed frame (302), a sliding plate (303), a cross bar A (304), a positioning plate A (305) and a pull rod A (306); the connection seat (301) is fixedly arranged on both sides of the protection frame (2), and the connection seat (301) is symmetrically arranged with two groups, and a connection plate (103) is movably arranged inside the connection seat (301); the fixed frame (302) is fixedly arranged on the outside of the connection seat (301), and the fixed frame (302) is communicated with the inside of the connection seat (301); the sliding plate (303) ) is slidably arranged between the connecting seat (301) and the inside of the fixed frame (302); the cross bar A (304) is slidably arranged inside the fixed frame (302), and the cross bar A (304) and the sliding plate (303) are arranged to be fixedly connected, and a spring member is arranged between the top of the cross bar A (304) and the inside of the fixed frame (302); the positioning plate A (305) is fixedly arranged at the top of the cross bar A (304), and the outer side of the positioning plate A (305) is in contact with the outer side of the fixed frame (302); the pull rod A (306) is fixedly arranged on the outer side of the positioning plate A (305).

5. A virtual training aid with a head protection structure according to claim 4, characterized in that: A connecting block (3031) is fixedly arranged on the outer side of the sliding plate (303), and the connecting block (3031) is arranged in a right triangle; the hypotenuse of the connecting block (3031) is in contact with the hypotenuse of the fixed block (104), and the connecting block (3031) is arranged in a straight line; a square hole (3032) is opened inside one side of the sliding plate (303).

6. A virtual training aid with a head protection structure according to claim 5, characterized in that: The connection assembly (3) also includes: a self-locking block (307), a cross bar B (308), a positioning plate B (309) and a pull rod B (3010); the self-locking block (307) is slidably arranged inside one side of the fixed frame (302), and the end of the self-locking block (307) close to the side of the sliding plate (303) is arranged as a bevel structure, and the self-locking block (307) is slidably arranged inside the square hole (3032); the cross bar B (308) is fixedly arranged on the outside of the self-locking block (307), and the cross bar B (308) is slidably arranged inside the fixed frame (302), and a spring member is arranged between the top of the cross bar B (308) and the inside of the fixed frame (302); the positioning plate B (309) is fixedly arranged on the top of the cross bar B (308), and the outer side of the positioning plate B (309) is in contact with the outer side of the fixed frame (302); the pull rod B (3010) is fixedly arranged on the outer side of the positioning plate B (309).

7. The virtual training teaching aid with a head protection structure according to claim 4, characterized in that: The wearing structure (4) comprises: an elastic band (401), a buckle mother buckle (402) and a buckle sub-buckle (403); the number of the elastic bands (401) is set to two groups, and the two groups of elastic bands (401) are respectively fixedly arranged at the bottom of the connecting seat (301); the buckle mother buckle (402) is fixedly arranged at the bottom end of one group of elastic bands (401); the buckle sub-buckle (403) is fixedly arranged at the bottom end of the other group of elastic bands (401), and the buckle sub-buckle (403) is snapped into the inside of the buckle mother buckle (402).

8. The virtual training teaching aid with a head protection structure according to claim 1, characterized in that: The protective structure (5) comprises: a spring damping rod A (501) and a buffer frame (502); the spring damping rod A (501) is fixedly arranged on the outside of the protective frame (2), and the spring damping rod A (501) is arranged in a ring array; the buffer frame (502) is fixedly arranged on the outside of the telescopic end of the spring damping rod A (501), and the buffer frame (502) has a certain elasticity.

9. A virtual training aid with a head protection structure according to claim 8, characterized in that: The protection structure (5) further comprises: a spring damping rod B (503) and a protection plate (504); the spring damping rod B (503) is fixedly arranged on the rear side of the protection frame (2), and the spring damping rod B (503) is arranged in an array; the protection plate (504) is fixedly arranged on the outer side of the telescopic end of the spring damping rod B (503), and the protection plate (504) has a certain elasticity, and the protection plate (504) is arranged in an arc structure.

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