A fully intelligent safety helmet that quickly matches construction drawings

Abstract

The present invention relates to the technical field of intelligent safety helmets, and more specifically, it relates to a fully intelligent safety helmet that quickly matches construction drawings, comprising a helmet shell and a brim at the front edge of the helmet shell, a rib is arranged between the helmet shell and the brim, a projection opening is opened in the rib, a projection device is arranged horizontally in the projection opening, the projection opening limits the rotation angle of the projection device, a head support is arranged in the helmet shell, the head support is movably arranged in a direction perpendicular to the center of the top of the helmet shell, an automatic reset part for controlling the head support to reset downward is arranged between the head support and the helmet shell, a first synchronization component is arranged between the head support and the projection device, the head support drives the projection device to rotate upward when moving upward, and drives the projection device to rotate downward when moving downward. The present invention can make the projection angle adaptively adjusted according to the use state of the safety helmet body, thereby improving the use experience.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent safety helmets, in particular to a fully intelligent safety helmet that quickly matches construction drawings. Background Art

[0002] At present, with the development of satellite positioning technology and Internet of Things technology, the safety helmets used on construction sites are also developing in the direction of smart safety helmets. Therefore, smart safety helmets with functions such as positioning, drawing matching, and projection have appeared in the existing technology.

[0003] For example, a Chinese patent application with application number 202210122653.1 discloses a hard hat, a method of use, and a building model projection system. The hard hat includes a hard hat body, a network module, a positioning component, and a projection component. The network module is installed on the hard hat body; the positioning component is installed on the hard hat body, and the positioning component is connected to the network module for communication; the projection component is installed on the front end of the hard hat body. This type of hard hat can achieve precise positioning in the building and project a three-dimensional building model. Using this type of technology, it is also possible to achieve precise positioning in the construction site and project two-dimensional construction drawings onto the ground, achieving the effect of fully intelligent and rapid matching of construction drawings.

[0004] However, the projection angles of the safety helmets with projection functions in the prior art cannot be adaptively adjusted according to the usage status of the safety helmet body, resulting in a defect of poor user experience. Summary of the invention

[0005] In order to enable the projection angle to be adaptively adjusted according to the usage status of the safety helmet body, thereby improving the user experience, the present application provides a fully intelligent safety helmet that can quickly match construction drawings.

[0006] The invention provides a fully intelligent safety helmet that quickly matches construction drawings, which adopts the following technical solutions:

[0007] A fully intelligent safety helmet that quickly matches construction drawings comprises a safety helmet body, the safety helmet body comprising a helmet shell and a brim at the front edge of the helmet shell, a helmet rib is arranged between the helmet shell and the brim, the helmet rib is provided with a projection opening, a projection device is arranged in the projection opening for horizontal rotation, the projection opening limits the rotation angle of the projection device, the projection opening limits the projection device to rotate upward to horizontally forward and limits the projection device to rotate downward to tilt forward, a head support is arranged in the helmet shell, the head support is movably arranged in a direction perpendicular to the center of the top of the helmet shell, an automatic reset part for controlling the head support to reset downward is arranged between the head support and the helmet shell, a first synchronization component is arranged between the head support and the projection device, the head support drives the projection device to rotate downward when moving upward, and drives the projection device to rotate upward when moving downward.

[0008] Preferably, a vertical first telescopic hole is provided on the bottom surface of the projection port, a telescopic rod is slidably arranged in the first telescopic hole, a second synchronization component is arranged between the upper end of the telescopic rod and the projection device, the telescopic rod is driven to extend upward when the projection device rotates downward, and the telescopic rod is driven to retract downward when the projection device rotates upward, and a rubber block is fixedly connected to the lower end of the telescopic rod, and the rubber block is in contact with the inner wall of the first telescopic hole.

[0009] Preferably, a second telescopic hole is vertically penetrated through the brim, and the second telescopic hole is vertically aligned with and connected to the first telescopic hole. When the projection device is rotated upward to face horizontally forward, the rubber block extends into the second telescopic hole, and at this time, the bottom surface of the rubber block is aligned with the bottom surface of the brim.

[0010] Preferably, a diameter of the second telescopic hole is greater than a diameter of the first telescopic hole.

[0011] Preferably, the number of the first telescopic hole, the second telescopic hole and the telescopic rod are all set to two.

[0012] Preferably, the first synchronization component includes a first connecting rod and a second connecting rod, the first connecting rod is fixedly connected to the front end of the head support, the second connecting rod is fixedly connected to the rear end of the projection device, a rotating shaft is provided at one end of the first connecting rod close to the projection device, and a sliding groove is provided on the second connecting rod, and the rotating shaft is movably connected in the sliding groove.

[0013] Preferably, the second synchronization component includes a connecting block and a third connecting rod, the connecting block is fixedly connected to the bottom of the second connecting rod, the upper end of the third connecting rod is fixedly connected to the connecting block, and the lower end of the third connecting rod is hinged to the top of the telescopic rod.

[0014] Preferably, a guide cylinder is provided on the inner top surface of the cap shell, the axis of the guide cylinder is perpendicular to the top center of the cap shell, the bottom of the guide cylinder is open, a guide rod is fixedly provided on the top of the head support, the axis of the guide rod is perpendicular to the top center of the cap shell, and the guide rod is slidably inserted into the bottom of the guide cylinder.

[0015] Preferably, the automatic return member is a return spring.

[0016] Preferably, the maximum degree to which the lens of the projection device can be rotated downward is 20°.

[0017] The beneficial effects of the present invention are:

[0018] 1. When the user wears the helmet on his head, the head support will be lifted up and move upward, and the head support will simultaneously drive the projection device to rotate downward until it maintains a tilted forward state, so that it is convenient to wear it on the user's head to project onto the ground; when the user takes off the helmet, the head support will move downward under the action of the automatic reset member, and the head support will simultaneously drive the projection device to rotate upward until it maintains a horizontal forward state, so that it is convenient to take off the helmet and place it on the desktop to project onto the screen. Therefore, the present invention can make the projection angle adaptively adjusted according to the use state of the helmet body, thereby improving the user experience;

[0019] 2. When the helmet is worn on the user's head, the head and the head support may be separated instantaneously due to road conditions or movements. At this time, by slowing down the reaction of the projection device, the projection device can be prevented from rotating due to the instantaneous separation of the head and the head support. When the helmet is worn on the user's head, the projection device can be more stably tilted forward, thereby improving the stability of the projection device.

[0020] 3. When the removed safety helmet is placed on the desktop and projected through a horizontal forward projection device, the bottom surface of the rubber block can contact the desktop and generate sliding friction when it is about to slide, thereby improving the stability of the safety helmet when placed on the desktop and achieving stable projection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural cross-sectional view of the safety helmet in the embodiment of the present application when it is taken off;

[0022] Figure 2 yes Figure 1 A partial enlarged view of

[0023] Figure 3 is a structural cross-sectional view of the helmet in the embodiment of the present application when it is worn;

[0024] Figure 4 yes Figure 3A partial enlarged view of

[0025] Figure 5 It is a top view of the safety helmet in the embodiment of the present application.

[0026] Explanation of the accompanying drawings: 1. Cap shell; 11. Head support; 2. Cap brim; 3. Cap rib; 31. Projection port; 4. Projection device; 51. Guide cylinder; 52. Guide rod; 53. Return spring; 61. First connecting rod; 62. Second connecting rod; 63. Connecting block; 64. Third connecting rod; 71. First telescopic hole; 72. Second telescopic hole; 81. Telescopic rod; 82. Rubber block. DETAILED DESCRIPTION

[0027] The following will be combined with the attached Figure 1-5 The present invention is further illustrated by the following embodiments.

[0028] This embodiment discloses a fully intelligent safety helmet that can quickly match construction drawings.

[0029] Reference Figure 1 and Figure 5 The fully intelligent safety helmet that quickly matches the construction drawings includes a safety helmet body, which includes a cap shell 1 and a visor 2 connected to the front edge of the cap shell 1. The cap shell 1 is semicircular with a hollow bottom and is used to cover the human head. The width of the visor 2 is gradually reduced from the middle to the left and right sides, which is used to provide a certain sunshade effect for the human eyes. A head support 11 is also provided at the top of the cap shell 1 to fit the top of the human head. The shape of the head support 11 is ergonomically designed to make it more in line with the shape of the human head, thereby improving the wearing comfort of the user. Furthermore, a cap rib 3 is fixedly provided between the front end of the cap shell 1 and the top end of the visor 2. A projection port 31 is opened at the front end of the cap rib 3. A projection device 4 is installed in the projection port 31. The lens of the projection device 4 faces outward, and the projection device 4 projects outward through the projection port 31, so that the safety helmet has a projection function. It should be noted that a battery is also provided inside the cap rib 3, and the battery supplies power to the projection device 4. A charging port is also provided on the side wall of the cap rib 3, and the charging port is used to charge the battery. As for the projection principle of the projection device 4, it is a prior art, so it is not repeated here. In this embodiment, the safety helmet is used to realize full intelligent rapid matching of construction drawings, so it is also necessary to set up a network module and a positioning component, and realize accurate positioning at the construction site through the positioning component, transmit the positioning information through the network module and obtain the two-dimensional construction drawings of the corresponding position, and finally project through the projection device 4, so that the on-site construction personnel can check the construction status according to the construction drawings.

[0030] Reference Figures 1 to 4, safety helmets with projection functions usually have two usage scenarios. One is to wear on the user's head and project onto the ground, and the other is to place on the desktop after taking it off and project onto the screen. If the projection angle is always set to be horizontal and forward, it is beneficial for placing on the desktop after taking it off and projecting onto the screen, but not beneficial for wearing on the user's head for projection. Because if you want to project onto the ground, the user's head needs to be lowered at a large angle, which will lead to a poor user experience in the long-term use state. If the projection angle is always set to be inclined downward, it is beneficial for wearing on the user's head and projecting onto the ground, but not beneficial for placing on the desktop after taking it off and projecting onto the screen. Because at this time, the safety helmet cannot be placed flat, and tools need to be used for auxiliary stabilization, resulting in a poor user experience. In response to this, the safety helmet in the present invention makes the following improvements: The projection device 4 is rotatably arranged in the projection opening 31 of the cap rib 3. The rotation axis of the projection device 4 is coaxial with the left-right direction of the safety helmet body, so that the projection device 4 can adjust the rotation angle horizontally while keeping the lens facing forward. Moreover, the rotation angle of the projection device 4 is restricted between the top surface and the bottom surface of the projection opening 31. The projection opening 31 restricts the projection device 4 from rotating upward until its lens is horizontal and forward, and restricts the projection device 4 from rotating downward until its lens is inclined forward. In this embodiment, the maximum degree of downward rotation of the lens of the projection device 4 is 20°. Further, the headrest 11 is movably arranged along the direction perpendicular to the center of the top of the cap shell 1. An automatic resetting member is arranged between the headrest 11 and the cap shell 1, and the automatic resetting member controls the headrest 11 to automatically reset downward. A first synchronization component is arranged between the headrest 11 and the projection device 4. By using the first synchronization component, when the headrest 11 moves upward, it drives the projection device 4 to rotate downward synchronously, and when the headrest 11 moves downward, it drives the projection device 4 to rotate upward synchronously. Through the above settings, when the user wears the safety helmet on the head, the headrest 11 will be pushed upward and move upward, and the headrest 11 synchronously drives the projection device 4 to rotate downward until it maintains an inclined-forward state, so as to facilitate projecting onto the ground when wearing on the user's head; when the user takes off the safety helmet, the headrest 11 will move downward under the action of the automatic resetting member, and the headrest 11 synchronously drives the projection device 4 to rotate upward until it maintains a horizontal-forward state, so as to facilitate placing the safety helmet on the desktop and projecting onto the screen after taking it off. Therefore, the present invention can make the projection angle adaptively adjusted according to the usage state of the safety helmet body, thereby improving the user experience.

[0031] Refer to Figure 1 and Figure 3In order to realize that the head support 11 is movable in a direction perpendicular to the top center of the cap shell 1, a guide cylinder 51 is provided on the top surface of the cap shell 1, the axis of the guide cylinder 51 is perpendicular to the top center of the cap shell 1, and the bottom of the guide cylinder 51 is open. A guide rod 52 is fixedly provided on the top of the head support 11, the axis of the guide rod 52 is also perpendicular to the top center of the cap shell 1, and the guide rod 52 is slidably plugged into the bottom of the guide cylinder 51. In this embodiment, the automatic reset member is a reset spring 53. When the cap is taken off, the head support 11 automatically resets downward by the elastic force of the reset spring 53.

[0032] Reference Figure 2 and Figure 4 , the first synchronous assembly includes a first connecting rod 61 and a second connecting rod 62, the first connecting rod 61 is fixedly connected to the front end of the head support 11, and the second connecting rod 62 is fixedly connected to the rear end of the projection device 4. A rotating shaft is provided at one end of the first connecting rod 61 close to the projection device 4, and a sliding groove is provided on the second connecting rod 62, and the rotating shaft is movably connected in the sliding groove, so that the first connecting rod 61 and the second connecting rod 62 are movably connected. The action process of the first synchronous assembly is as follows: when the head support 11 moves upward, the first connecting rod 61 is driven to move upward, and the first connecting rod 61 then drives the second connecting rod 62 and the projection device 4 to rotate. During this process, the rotating shaft also slides in the sliding groove to avoid structural conflict and jamming; when the head support 11 moves downward, the action is reversed. It should be noted that an avoidance opening is provided between the front end of the cap shell 1 and the rear end of the cap rib 3 for the first connecting rod 61 to penetrate into the projection port 31 and for the first connecting rod 61 to move up and down, thereby providing a connection space and an activity space for the first connecting rod 61.

[0033] Reference Figure 2 and Figure 4A vertical first telescopic hole 71 is provided on the bottom surface of the projection opening 31 of the cap rib 3, a telescopic rod 81 is vertically slidably arranged in the first telescopic hole 71, a second synchronization component is arranged between the upper end of the telescopic rod 81 and the projection device 4, and by using the second synchronization component, the projection device 4 drives the telescopic rod 81 to extend upward during the downward rotation process, and drives the telescopic rod 81 to retract downward during the upward rotation process. Further, the lower end of the telescopic rod 81 is fixedly connected with a rubber block 82, and the rubber block 82 is fitted with the inner wall of the first telescopic hole 71. The sliding friction between the rubber block 82 and the first telescopic hole 71 provides telescopic resistance for the telescopic rod 81, thereby providing rotation resistance for the rotation of the projection device 4, slowing down the reaction of the projection device 4, which has the advantages of: on the one hand, avoiding the projection device 4 from rotating too fast, thereby improving the protection effect of the projection device 4, and on the other hand, when the safety helmet is worn on the user's head, due to road conditions or movements, the head and the head support 11 may be separated instantaneously. At this time, by slowing down the reaction of the projection device 4, the projection device 4 can be prevented from rotating due to the instantaneous separation of the head and the head support 11, so that when the installation cap is worn on the user's head, the projection device 4 can be more stably maintained in a tilted forward state, thereby improving the stability of the projection device 4. It should be noted that the elastic force of the reset spring 53 controlling the reset of the head support 11 must be greater than the sliding friction between the rubber block 82 and the first telescopic hole 71, to ensure that the reset elastic force can achieve automatic reset control of the head support 11.

[0034] Reference Figure 2 and Figure 4 The second synchronous component includes a connecting block 63 and a third connecting rod 64. The connecting block 63 is fixedly connected to the bottom of the second connecting rod 62. The upper end of the third connecting rod 64 is fixedly connected to the connecting block 63, and the lower end is hinged to the top of the telescopic rod 81. Based on this, the action process of the second synchronous component is: when the projection device 4 and the second connecting rod 62 rotate downward, the connecting block 63 is driven to rotate downward synchronously, and the connecting block 63 drives the third connecting rod 64 to move upward, and finally the third connecting rod 64 drives the telescopic rod 81 and the rubber block 82 to move upward. During this process, the third connecting rod 64 also swings; when the projection device 4 and the second connecting rod 62 rotate upward, the action is reversed.

[0035] Reference Figure 2 and Figure 4The second telescopic hole 72 is vertically penetrated through the brim 2, and the second telescopic hole 72 is vertically aligned with and connected to the first telescopic hole 71. When the projection device 4 is rotated upward to the horizontal forward direction of its lens, the rubber block 82 extends into the second telescopic hole 72 and the bottom surface is aligned with the bottom surface of the brim 2. Through the above arrangement, when the removed safety helmet is placed on the desktop and projected by the horizontal forward projection device 4, the bottom surface of the rubber block 82 can contact the desktop and can generate sliding friction when it is about to slide, thereby improving the stability of the safety helmet when placed on the desktop and achieving stable projection. Furthermore, the number of the first telescopic hole 71, the second telescopic hole 72 and the telescopic rod 81 are all set to two, so that there are two contact points between the safety helmet and the desktop that generate sliding friction, further improving the stability of the safety helmet when placed on the desktop. In addition, the diameter of the second telescopic hole 72 is larger than the diameter of the first telescopic hole 71, which makes the initial stage of the telescopic rod 81 moving upward easier, thereby making the initial stage of the projection device 4 rotating downward easier, and finally making the initial stage of the head support 11 moving upward easier, reducing the resistance of the user when wearing the helmet.

[0036] The above are all preferred embodiments of the present invention, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully intelligent safety helmet that can quickly match construction drawings, characterized by: The invention comprises a helmet body, the helmet body comprising a helmet shell (1) and a visor (2) at the front edge of the helmet shell (1), a rib (3) being arranged between the helmet shell (1) and the visor (2), the rib (3) being provided with a projection opening (31), a projection device (4) being arranged in the projection opening (31) for horizontal rotation, the projection opening (31) limiting the rotation angle of the projection device (4), the projection opening (31) limiting the upward rotation of the projection device (4) to face horizontally forward and limiting the downward rotation of the projection device (4) to face horizontally forward. The head shell (1) is tilted forward, and a head support (11) is arranged inside the head shell (1). The head support (11) is movably arranged in a direction perpendicular to the top center of the head shell (1). An automatic reset component for controlling the head support (11) to reset downward is arranged between the head support (11) and the head shell (1). A first synchronization component is arranged between the head support (11) and the projection device (4). When the head support (11) moves upward, it drives the projection device (4) to rotate downward. When the head support (11) moves downward, it drives the projection device (4) to rotate upward.

2. According to claim 1, a fully intelligent safety helmet that can quickly match construction drawings is characterized by: A vertical first telescopic hole (71) is provided on the bottom surface of the projection opening (31), a telescopic rod (81) is slidably arranged in the first telescopic hole (71), a second synchronization component is arranged between the upper end of the telescopic rod (81) and the projection device (4), the telescopic rod (81) is driven to extend upward when the projection device (4) rotates downward, and the telescopic rod (81) is driven to retract downward when the projection device (4) rotates upward, the lower end of the telescopic rod (81) is fixedly connected with a rubber block (82), and the rubber block (82) is in contact with the inner wall of the first telescopic hole (71).

3. According to claim 2, a fully intelligent safety helmet that can quickly match construction drawings is characterized by: The cap brim (2) is provided with a second telescopic hole (72) vertically penetrating therethrough. The second telescopic hole (72) is vertically aligned with and connected to the first telescopic hole (71). When the projection device (4) is rotated upward to face horizontally forward, the rubber block (82) extends into the second telescopic hole (72), and at this time, the bottom surface of the rubber block (82) is aligned with the bottom surface of the cap brim (2).

4. The fully intelligent safety helmet capable of quickly matching construction drawings according to claim 3 is characterized by: The diameter of the second telescopic hole (72) is greater than the diameter of the first telescopic hole (71).

5. The fully intelligent safety helmet capable of quickly matching construction drawings according to claim 3 is characterized by: The number of the first telescopic hole (71), the second telescopic hole (72) and the telescopic rod (81) is set to two.

6. The fully intelligent safety helmet capable of quickly matching construction drawings according to claim 3, characterized in that: The first synchronization component comprises a first connecting rod (61) and a second connecting rod (62), wherein the first connecting rod (61) is fixedly connected to the front end of the head support (11), and the second connecting rod (62) is fixedly connected to the rear end of the projection device (4), a rotating shaft is arranged at one end of the first connecting rod (61) close to the projection device (4), and a sliding groove is provided on the second connecting rod (62), and the rotating shaft is movably connected in the sliding groove.

7. The fully intelligent safety helmet capable of quickly matching construction drawings according to claim 6, characterized in that: The second synchronization component comprises a connecting block (63) and a third connecting rod (64), wherein the connecting block (63) is fixedly connected to the bottom of the second connecting rod (62), the upper end of the third connecting rod (64) is fixedly connected to the connecting block (63), and the lower end of the third connecting rod (64) is hinged to the top of the telescopic rod (81).

8. The fully intelligent safety helmet capable of quickly matching construction drawings according to claim 1, characterized in that: A guide cylinder (51) is arranged on the inner top surface of the cap shell (1), the axis of the guide cylinder (51) is perpendicular to the top center of the cap shell (1), the bottom of the guide cylinder (51) is open, and a guide rod (52) is fixedly arranged on the top of the head support (11), the axis of the guide rod (52) is perpendicular to the top center of the cap shell (1), and the guide rod (52) is slidably inserted into the bottom of the guide cylinder (51).

9. The fully intelligent safety helmet capable of quickly matching construction drawings according to claim 1, characterized in that: The automatic reset element is a reset spring (53).

10. The fully intelligent safety helmet capable of quickly matching construction drawings according to claim 1, characterized in that: The maximum degree to which the lens of the projection device (4) can be rotated downward is 20°.

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