A helmet and lens connection structure

Abstract

The application discloses a helmet and lens connecting structure, which comprises connecting pieces fixed on both sides of a helmet and a lens buckled on the front of the helmet, the lens is rotatably connected with the connecting pieces through rotating parts, a clamping groove is arranged on each connecting piece, a socket is arranged on one side of the clamping groove, the rotating part on the corresponding end of the lens is matched with the clamping groove, the connecting piece is provided with an elastic tongue piece reversely arranged with the socket, one side of the elastic tongue piece is connected with the socket end, the remaining periphery is provided with a first hollow groove, and the elastic tongue piece is provided with a first limiting protrusion which is matched with the position and shape of the rotating part and is at least one concentric circular arc surface; the first limiting protrusion arranged on the elastic tongue piece is used for connecting the lens with the connecting piece, and a pressing handle for pressing the elastic tongue piece is integrated with the elastic tongue piece, thus simplifying an existing unlocking structure arranged on the outer side of the lens, and the lens can be separated from the connecting piece through single-hand operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of helmet and lens connection, in particular to a helmet and lens connection structure. BACKGROUND

[0002] It is common to install a lens on a full-cover helmet or the like in a manner that the lens can be installed and removed from an eye-exposing opening on the front of the helmet body, so that the lens can be replaced when it is damaged or stained during driving or when the color or design is changed.

[0003] As a prior art connection structure, rotating support portions are provided on the left and right sides of the helmet body, and rotating portions are provided on the left and right ends of the lens, which are freely engaged in the rotating support portions on the left and right. These rotating support portions and rotating portions can be disengaged by pulling the left and right ends of the lens outward in the left and right directions relative to the helmet body, and can be engaged by pressing the left and right ends of the helmet body inward in the left and right directions (toward each other) relative to the helmet body.

[0004] However, during normal use of the helmet (during driving, etc.), the lens cannot be removed at will, and the structure in which the rotating support portions and the rotating portions are engaged can be locked. In the above-mentioned prior art connection structure, in order to release the lock, the structure in which the operating portion for locking is pressed downward along the outside of the lens is complex, is prone to jamming and damage, and has a short service life. SUMMARY

[0005] The present application aims to solve the above technical problems and provides a helmet and lens connection structure that simplifies the unlocking structure and is easy to operate.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: a helmet and lens connection structure, comprising connection members fixed on both sides of the helmet and a lens buckled on the front of the helmet, the ends of the lens being rotatably connected to the connection members, each connection member being provided with a clamping groove, one side of the clamping groove being provided with a socket, the rotating portion on one end of the lens being matched with the clamping groove, the connection member being provided with an elastic tongue plate reversely arranged with the socket, one side of the elastic tongue plate being connected to the end of the socket, the remaining periphery being provided with a first hollow groove, and the elastic tongue plate being provided with a first limiting protrusion having a concentric circular arc surface matched with the position and shape of the rotating portion and at least one face.

[0007] In order to make the structure of the installed lens more stable after the rotating portion is matched and contacted with the clamping groove, a further preferred technical solution is that one side of the elastic tongue plate is provided with a pressing handle, and the pressing handle is provided with a second limiting protrusion having a concentric circular arc surface matched with the position and shape of the rotating portion and at least one face.

[0008] In order to insert the lens into the connecting piece in a proper position, it is further preferred that the mounting position of the connecting piece is such that the socket faces upward when the helmet is opened to the maximum angle.

[0009] In order to limit the rotation of the lens from the connecting piece along the axis of the card slot, it is further preferred that the rotating part is a D-shaped convex ring, the top of the arc segment of the D-shaped convex ring is provided with an everted edge, and the connecting piece on both sides of the card slot is provided with a stop edge symmetrically arranged and matched with the everted edge.

[0010] In order to facilitate the insertion of the lens rotating part into the socket, it is further preferred that the socket is in a U-shaped structure.

[0011] In order to properly adjust the pop-up angle (opening) of the lens relative to the helmet body, it is further preferred that one side of the card slot on the connecting piece is provided with a pair of elastic teeth concentric with the rotating center of the card slot, and the lens is provided with a positioning tooth matched with the elastic tooth.

[0012] In order to facilitate the insertion of the positioning tooth into the second hollow slot matched with the elastic tooth while the rotating part is inserted into the card slot, it is further preferred that the two sides of the elastic tooth are provided with a second hollow slot, and the connecting piece on one side of the second hollow slot is provided with a tooth insertion slot.

[0013] In order to detachably fix the connecting piece on the helmet, it is further preferred that the connecting piece is provided with a helmet connecting hole.

[0014] In order to stabilize the cooperation between the positioning tooth and the elastic tooth through the guide structure, it is further preferred that the positioning tooth is provided with a convex sliding block, and the connecting piece is provided with a sliding groove matched with the sliding block.

[0015] In order to reduce the weight of the product, save materials and reduce costs, it is further preferred that the back of the connecting piece is provided with a groove, and the groove is arranged between the outer contour of the connecting piece and the back of the sliding groove, the back of the first hollow slot and the back of the helmet connecting hole.

[0016] Compared with the prior art, the present application has the beneficial effects that: the first limiting protrusion provided on the elastic tongue piece connects the lens and the connecting piece, and the pressing handle which touches and presses the elastic tongue piece is in an integrated structure with the elastic tongue piece, which simplifies the existing unlocking structure provided on the outer side of the lens, enables the lens to be separated from the connecting piece by single-handed operation, avoids the previous way of providing a pressing handle on the lens and touching and pressing the unlocking mechanism through the connecting structure, makes the unlocking structure simpler and the operation more convenient, and the operation handle for unlocking is provided on the connecting piece, so that the pressing handle is exposed outside the lens only when the lens is rotated to the maximum opening angle, otherwise the pressing handle will be located on the inner side of the lens, and the lens cannot be operated by the pressing handle for unlocking within the maximum opening angle range, which avoids the error pressing operation or accidental pressing of the unlocking connecting structure when the unlocking structure is provided on the lens, and makes the lens separate from the connecting piece.

[0017] The second limiting protrusion corresponding to the first limiting protrusion of the elastic tongue piece is provided on the pressing handle, and the structure of the lens after installation is more stable.

[0018] A pair of elastic teeth concentric with the rotation center of the clamping groove are provided on the connecting piece on one side of the clamping groove, and the lens is provided with positioning teeth matched with the positions of the elastic teeth, and the lens positioning teeth move across the adjacent positions relative to the elastic teeth of the connecting piece, so that the pop-up angle (opening degree) of the lens relative to the helmet body can be appropriately adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the connecting piece connected with the lens on one side of the present application.

[0020] Figure 2 It is a perspective view of the connecting piece connected with the helmet on one side of the present application.

[0021] Figure 3 It is an axial view of the lens and the helmet in a closed state of the present application.

[0022] Figure 4 It is an axial view of the lens and the helmet in a closed state of the present application.

[0023] Figure 5 It is an axial view of the lens and the helmet in a state of being inserted into or separated from the clamping groove of the present application.

[0024] Figure 6 It is an axial view of the lens and the helmet in a state of being inserted into or separated from the clamping groove of the present application.

[0025] Figure 7 It is an axial view of the lens and the helmet in a state of being inserted into or separated from the socket of the present application.

[0026] In the diagram: 10. Connector; 11. Insert; 12. First hollow groove; 13. Slot; 131. Edge guard; 14. Elastic tongue; 141. First limiting protrusion; 15. Press handle; 151. Second limiting protrusion; 16. Helmet connection hole; 17. Elastic tooth; 18. Second hollow groove; 19. Tooth insertion groove; 20. Groove; 21. Slide groove; 30. Lens; 31. Rotating part; 311. Outward flange; 32. Positioning tooth; 321. Slider. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example

[0029] like Figures 1-4 As shown, a helmet and lens connection structure includes a helmet with connectors 10 on both sides. Each connector 10 has a helmet connection hole 16 and is fixed to the helmet with screws. A lens 30 is fastened to the front of the helmet via the connectors 10. Both ends of the lens 30 are rotatably connected to the connectors 10 via rotating parts 31. Each connector 10 has a slot 13, and one side of the slot 13 has an insertion port 11. The rotating part 31 at the corresponding end of the lens 30 is connected to the slot 13. In conjunction with this, the connector 10 is provided with an elastic tongue 14 that is arranged opposite to the socket 11. One side of the elastic tongue 14 is connected to the socket end, and the remaining periphery is provided with a first hollow groove 12. The elastic tongue 14 is provided with a first limiting protrusion 141 that is adapted to the position and shape of the rotating part 31 and has at least one concentric arc surface. The first limiting protrusion 141 on the arc surface is adapted to the rotating part 31 of the lens 30. The lens 30 is fastened to the connector 10 through the first limiting protrusion 141 and can be rotatably opened.

[0030] To further stabilize the structure of the lens 30 after it is installed, the elastic tongue 14 is provided with a pressing handle 15 on one side. The pressing handle 15 is provided with a second limiting protrusion 151 that is adapted to the position and shape of the rotating part 31 and has at least one concentric arc surface. The second limiting protrusion 151 on the arc surface is adapted to the rotating part of the lens 30. By pressing the elastic tongue 14 with the pressing handle 15, the first limiting protrusion 141 and the second limiting protrusion 151 are released from limiting the rotating part of the lens 30, so that the lens 30 is disengaged from the connector 10.

[0031] In order to insert the lens 30 into the connecting piece 10 in a proper position, the mounting position of the connecting piece is further set so that the socket 11 faces the lens 30 in a state that the helmet is opened to the maximum angle upward.

[0032] In order to limit the rotation part 31 of the lens 30 from being separated from the connecting piece 10 along the axial direction of the clamping groove 13, the rotation part 31 is further provided with a D-shaped convex ring, the top of the arc segment of the D-shaped convex ring is provided with an everted edge 311, and the clamping groove 13 of the connecting piece 10 is provided with symmetrically arranged stop edges 131 which are matched with the everted edge 311. The D-shaped convex ring structure is convenient for rotationally connecting with the connecting piece 10, and the first limiting protrusion 141 can be abutted against the inner annular surface of the D-shaped convex ring, so that the D-shaped convex ring can prevent interference with the socket 11.

[0033] In order to facilitate the rotation part 31 of the lens 30 to enter the socket 11, the socket 11 is further provided with a U-shaped structure.

[0034] In order to properly adjust the pop-up angle (opening degree) of the lens 30 relative to the helmet body, a pair of elastic teeth 17 which are concentric with the rotation center of the clamping groove 13 are arranged on one side of the clamping groove 13 of the connecting piece 10, and the lens 30 is provided with a positioning tooth 32 which is engaged with the elastic tooth 17. The positioning tooth 32 of the lens 30 moves to the adjacent position relative to the elastic tooth 17 of the connecting piece 10, and the elastic tooth 17 can be elastically stretched along the radial direction of the rotation center in the abutting state and then engaged with the positioning tooth 32. Thus, the pop-up angle (opening degree) of the lens 30 relative to the helmet body can be properly adjusted.

[0035] In order to facilitate the positioning tooth 32 to be inserted into the second hollow groove 18 and engaged with the elastic tooth 17 while the rotation part 31 is inserted into the clamping groove 13, the elastic tooth 17 is further provided with the second hollow groove 18 on both sides, and the connecting piece on one side of the second hollow groove 18 is provided with a tooth insertion groove 19.

[0036] In order to stabilize the cooperation between the positioning tooth 32 and the elastic tooth 17 through a guide structure, the positioning tooth 32 is further provided with a protruding sliding block 321, and the connecting piece 10 is provided with a sliding groove 21 which is matched with the sliding block. The positioning tooth 32 of the lens 30 moves to the adjacent position relative to the elastic tooth 17 of the connecting piece 10, and the sliding block 321 moves synchronously along the sliding groove 21.

[0037] In order to reduce the weight of the product, save materials, and reduce costs, the back surface of the connecting piece 10 is further provided with a recess 20 which is arranged between the outer contour of the connecting piece 10, the back surface of the sliding groove 21, the back surface of the first hollow groove 12, and the back surface of the helmet connecting hole 16.

[0038] As Figures 5-6As shown in the detailed description above, in the lens 30 connection structure of the present invention having the above structure, the lens 30 is a component that can be unlocked and disassembled by pressing the elastic tongue 14 when it is in the open position relative to the helmet connector 10. In addition, its disassembly and assembly are performed in the following directions: it can be disassembled by pulling the lens 30 in the open position from the helmet connector 10 forward and upward, and it can be engaged by pressing the lens 30 in the separated position into the helmet body connector 10 backward and downward.

[0039] Specifically, when the lens 30 is... Figure 1 When the lens 30 is inserted into the slot 13 via the insertion port 11 in the Z-direction direction, the rotating part 31 presses against the first limiting protrusion 141 on the elastic tongue 14, causing the elastic tongue 14 to deform inward toward the helmet. The rotating part 31 is then engaged in the slot 13. The outer flange 311 of the D-shaped protrusion ring engages with the retaining edge 131 of the slot 13 to form a fastening. The rotating part 31 of the lens 30 is limited by the first limiting protrusion 141 and the second limiting protrusion 151, and can only rotate within the slot 13. When the operator fastens the lens 30 onto the helmet, the positioning tooth 32 moves along the elastic tooth 17 to the adjacent position while the lens 30 rotates, thus forming a positioning state. Therefore, the spring angle (opening) of the lens 30 relative to the helmet body can be adjusted.

[0040] like Figure 7As shown, when the lens 30 is detached from the helmet body connector 10, the operator first rotates the lens 30 to an open position at a maximum opening angle, and then presses the pressing handle 15 to press the elastic tongue 14, which deforms towards the inside of the helmet body of the connector 10, so that the first limiting protrusion 141 of the elastic tongue 14 can be separated from the rotating part 31 under the action of the elastic tongue 14. The lens 30 automatically separates from the clamping groove 13 of the connector 10 due to its own elasticity. The connection of the lens 30 and the connector 10 through the first limiting protrusion 141 on the elastic tongue 14 and the integral structure of the pressing handle 15 and the elastic tongue 14 simplify the existing unlocking structure arranged on the outside of the lens 30, so that the lens 30 can be operated by one hand to separate from the connector 10. The unlocking structure is simpler and more convenient to operate. Moreover, the pressing handle 15 for unlocking is arranged on the connector 10, and the pressing handle 15 is exposed outside the lens 30 only when the lens 30 is rotated to the maximum opening angle. Otherwise, the pressing handle 15 will be located inside the lens 30. The operator cannot operate the pressing handle 15 to unlock when the lens 30 is within the maximum opening angle range. This avoids the error pressing operation or accidental pressing of the unlocking connection structure when the unlocking structure is arranged on the lens 30, which causes the lens 30 to separate from the connector 10.

[0041] The direction of the lens 30 corresponding to the Z line in the figure is the best implementation direction for inserting, buckling, and elastically unlocking and separating from the connector 10 at the maximum opening angle, but it is not the only direction. The lens 30 can be inserted into the helmet clamping groove 13 at a corresponding position within the maximum opening angle range, and the pop-up angle (opening degree) of the lens 30 relative to the helmet body can be adjusted by rotating the lens 30 on both sides of the insertion position. The position and angle of the pressing handle 15 are adjusted to achieve the unlocking and separation of the lens 30 from the helmet.

[0042] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A helmet and lens connecting structure, comprising connecting members fixed on both sides of a helmet and a lens buckled on the front of the helmet, both ends of the lens being rotatably connected with the connecting members, characterized in that, Each of the connecting pieces is provided with a clamping slot, one side of the clamping slot is provided with a socket, the rotating part of the corresponding end of the lens is matched with the clamping slot, the connecting piece is provided with an elastic tongue piece which is reversely arranged with the socket, one side of the elastic tongue piece is connected with the socket end, the remaining periphery is provided with a first hollow slot, the elastic tongue piece is provided with a first limiting protrusion which is matched with the position and shape of the rotating part and has at least one concentric circular arc surface, one side of the elastic tongue piece is provided with a pressing handle, the pressing handle is provided with a second limiting protrusion which is matched with the position and shape of the rotating part and has at least one concentric circular arc surface.

2. A helmet and lens connection structure as claimed in claim 1, wherein, The installation position of the connecting piece is such that the socket is directed to the lens in the state that the helmet is opened to the maximum angle upward.

3. A helmet and lens connection structure as defined in claim 1, wherein The rotating part is a D-shaped convex ring, the top of the arc segment of the D-shaped convex ring is provided with an everted edge, and the clamping slot on the connecting piece is provided with symmetrically arranged stop edges which are matched with the everted edge.

4. A helmet and lens connection structure as defined in claim 1, wherein The socket is in a U-shaped structure.

5. A helmet and lens attachment structure as defined in claim 1, wherein, One side of the clamping slot on the connecting piece is provided with a pair of elastic teeth which are concentric with the rotating center of the clamping slot, and the lens is provided with positioning teeth which are engaged with the elastic teeth.

6. A helmet and lens connection structure as claimed in claim 5, wherein, The two sides of the elastic teeth are provided with second hollow slots, and the connecting piece on one side of the second hollow slot is provided with a tooth insertion groove.

7. A helmet and lens attachment structure as defined in claim 1, wherein, The connecting piece is provided with a helmet connecting hole.

8. A helmet and lens connection structure as defined in claim 5, wherein, The positioning teeth are provided with a protruding sliding block, and the connecting piece is provided with a sliding groove which is matched with the sliding block.

9. A helmet and lens attachment structure as defined in claim 1, wherein, The back of the connecting piece is provided with a groove, and the groove is arranged between the outer contour of the connecting piece and the back of the sliding groove, the back of the first hollow slot and the back of the helmet connecting hole.

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