Helmet lens portable dismounting structure

Abstract

The utility model relates to a helmet lens portable dismounting structure which comprises a connecting piece, a pivot joint part is arranged on the connecting piece, the pivot joint part is arranged on the connecting piece in a protruding mode, and a flange extending outwards in the radial direction is arranged at the end of the pivot joint part. A section of first guide arc groove is formed below the pivoting part; the pair of glasses further comprises a lens, the end part of the lens is provided with a section of second guide arc groove matched with the pivoting part, the lens below the second guide arc groove is provided with a cylindrical pin, and the end part of the cylindrical pin is provided with an outer flange extending outwards along the radial direction; the second guide arc groove of the lens can be sleeved on the pivoting part, meanwhile, the first guide arc groove of the connecting piece can be sleeved on a cylindrical pin, the inserting piece is inserted into the end part of the cylindrical pin from the side surface of the vortex-shaped opening, and the cylindrical pin is pushed out from the first guide arc groove; and the cylindrical pin on the lens is separated from the connecting piece, so that the lens is detached from the connecting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of helmets, in particular to a portable disassembly structure for a helmet lens. Background Art

[0002] The connection between the existing helmet lens and the helmet body is all fixed type, that is, the lens is directly fixed on the helmet with screws or similar fixing parts. When the lens is worn or broken and needs to be replaced, special tools are required for disassembly and installation, which is time-consuming and laborious and very inconvenient.

[0003] Currently, there are also some motorcycle protective helmets, and the screen installed on the motorcycle protective helmet allows it to be removed for cleaning or replacement.

[0004] Chinese Patent CN2442536Y discloses a helmet, especially the connection structure between the windshield lens on the helmet and the helmet body. It consists of a lens and a connecting piece. The characteristic is that a disassembly and assembly switch is provided on the connecting piece, and it forms an openable and closable ring with the installation socket on the connecting piece through the action of a spring, so as to cooperate with the installation plug on the lens to fix or disassemble the lens. The utility model has a reasonable structure, is convenient and fast to use, and is suitable for use on motorcycle headgear or other helmets. However, the disassembly and installation process of the windshield lens on this helmet is still relatively complicated, and the simple operation of pressing with one hand to complete disassembly and installation cannot be achieved.

[0005] Chinese Patent CN211211609U discloses a locking structure for a helmet windshield lens, including a cap shell. An installation frame is fixed at the front end of the cap shell, a connecting frame is installed on the installation frame, a button is slidably connected between the connecting frame and the installation frame, a first spring is arranged between the connecting frame and the installation frame, a clamping block is arranged on the button, the clamping block is clamped in a clamping groove, the clamping groove is arranged on a buckle foot, the buckle foot is arranged at the lower end of an installation block, a locking column is arranged in the middle of the installation block, the locking column is inserted into a locking hole, the locking hole is arranged in the middle of the connecting frame, a slider is arranged under the locking column, a second spring is arranged between the slider and the inner bottom end of the button, the installation block is fixed at the middle lower end of the windshield lens through screws, and the rear side of the windshield lens is rotatably connected with the cap shell. The locking of the windshield lens and the cap shell is realized, with a simple structure, low cost and convenient use. This locking structure of the helmet windshield lens is only applicable to the locking of the windshield lens and the cap shell, and it is not convenient for the simple disassembly and installation between the helmet and the windshield lens.

[0006] The disadvantage of this structure in the above-mentioned publicly disclosed patent application documents is that both hands must be used to remove the screen. One hand holds the component in the unlocked position, and the other hand grabs and removes the screen, which is very inconvenient to use. Summary of the Utility Model

[0007] The purpose of the present utility model is to overcome the defects existing in the prior art and provide a portable disassembly structure for a helmet lens.

[0008] To achieve the above object, the technical solution of the present utility model is to design a portable disassembly structure for a helmet lens, including a connecting member, on which a pivoting portion is provided. The pivoting portion protrudes from the connecting member, and a flange extending radially outward is provided at the end of the pivoting portion; a first guiding arc groove is provided below the pivoting portion; a lens is also included, and a second guiding arc groove cooperating with the pivoting portion is provided at the end of the lens. A cylindrical pin is provided on the lens below the second guiding arc groove, and an outer flange extending radially outward is provided at the end of the cylindrical pin.

[0009] The first guiding arc groove of the lens can be sleeved on the pivoting portion, and at the same time, the first guiding arc groove of the connecting member can be sleeved on the cylindrical pin.

[0010] A further preferred technical solution is that the upper end of the first guiding arc groove on the connecting member is a swirling opening, and a slot is provided on the connecting member on one side of the opening, and a plug is provided in the slot.

[0011] A further preferred technical solution is that the plug is integrally arc-shaped, and one end of the plug close to the first guiding arc groove has a sharp socket. A slot matching the plug is provided on the connecting member, and the other end of the plug is exposed outside the connecting member after the plug is inserted into the slot.

[0012] A further preferred technical solution is that a guiding block is provided on one side of the plug, and a guiding groove is provided on the corresponding side edge of the slot.

[0013] A further preferred technical solution is that a tongue is provided on the other side of the plug, and a groove is provided on one side of the corresponding slot.

[0014] A further preferred technical solution is that the tongue is an elastic tongue extending from the outside of the side of the plug, the elastic tongue is S-shaped, and two consecutive arc-shaped grooves are provided on one side of the corresponding slot.

[0015] The advantages and beneficial effects of the present utility model are as follows: The reciprocating movement of the plug can be realized through the elastic tongue. By applying an external force, the plug can be pushed in the direction of the opening or pulled out in the opposite direction. The plug is inserted into the end of the cylindrical pin from the side of the swirling opening, and the cylindrical pin is pushed out of the first guiding arc groove, so that the cylindrical pin on the lens is separated from the connecting member. Then, by changing the position of the lens, the first guiding chute on the lens is separated from the connecting member, thereby detaching the lens from the connecting member.

[0016] The component facilitating the loading and unloading of the outer lens of the helmet is characterized by simple structure, few parts, easy assembly, easy manufacturing, convenient use, high reliability of connection between the helmet and the outer lens, and the ability to remove or install the outer lens of the helmet with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Isometric views of the front and back sides of the present invention;

[0018] Figure 2 Isometric views of the front and back sides of the connection between the connecting member and the lens of the present invention;

[0019] Figure 3 Isometric views of the front and back sides of the connection between the connecting member and the plug-in of the present invention;

[0020] In the figures: 10, connecting member; 11, pivoting portion; 12, flange; 13, first guiding arc groove; 131, opening; 14, slot; 15, clamping groove; 16, guiding groove; 20, plug-in; 21, locking tongue; 22, socket; 23, guiding block; 30, lens; 31, second arc guiding groove; 40, cylindrical pin; 50, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following describes the specific embodiments of the present invention in further detail in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and should not be used to limit the protection scope of the present invention.

[0022] Referring to Figure 1-2 , a portable detachable structure for a helmet lens includes a connecting member 10, the connecting member 10 is detachably installed on the helmet body, a pivoting portion 11 is provided on the connecting member 10, the pivoting portion 11 protrudes from the connecting member 10, and a flange 12 extending radially outward is provided at the end of the pivoting portion 11; a section of first guiding arc groove 13 is provided below the pivoting portion 11; a lens 30 is further included, a section of second guiding arc groove 31 cooperating with the pivoting portion 11 is provided at the end of the lens 30, a cylindrical pin 40 is provided on the lens 30 below the second guiding arc groove 31, and an outer flange extending radially outward is provided at the end of the cylindrical pin 40;

[0023] The second guiding arc groove 31 of the lens 30 can be sleeved on the pivoting portion 11, and at the same time, the first guiding arc groove 13 of the connecting member 10 can be sleeved on the cylindrical pin 40. By applying an external force, the second guiding arc groove 31 of the lens 30 can move along the pivoting portion 11 from the upper end to the lower end, and at the same time, the cylindrical pin 40 on the lens 30 moves synchronously along the first guiding arc groove 13 of the connecting member 10 from the upper end to the lower end, so that the lens 30 is flipped open or closed relative to the connecting member 10;

[0024] Since the pivoting portion 11 of the connecting member 10 has a flange 12, when the second guiding arc groove 31 of the lens 30 is sleeved on the pivoting portion 11, the flange 12 is stuck on the lens 30. At the same time, the outer flange on the cylindrical pin 40 of the lens 30 is stuck on the connecting member 10, so as to prevent the lens 30 from falling off the connecting member 10.

[0025] In one embodiment, a pair of radially extending flanges 12 are provided on the pivoting portion 11, and the first guiding arc groove 13 and the second guiding arc groove 31 are arranged in opposite directions. When the lower end of the second guiding arc groove 31 on the lens 30 is located at the pivoting portion 11 of the connecting member 10, the cylindrical pin 40 on the lens 30 is located at the upper end of the first guiding arc groove 13 of the connecting member 10, and at this time the lens 30 is in an open state; when the upper end of the second guiding arc groove 31 on the lens 30 is located at the pivoting portion of the connecting member 10, the cylindrical pin 40 on the lens 30 is located at the lower end of the first guiding arc groove 13 of the connecting member 10, and at this time the lens 30 is in a closed state;

[0026] Refer to Figure 3 , in order to facilitate the disassembly of the lens 30 from the connecting member 10, the upper end of the first guiding arc groove 13 on the connecting member 10 is a swirling opening 131. A slot 14 is provided on the connecting member 10 on one side of the opening 131. A plug 20 is provided in the slot 14. When the cylindrical pin 40 of the lens 30 is located at the upper end of the second guiding arc groove 13 of the connecting member 10, the plug 20 is inserted into the end of the cylindrical pin 40 from the side of the swirling opening 131, and the cylindrical pin 40 is pushed out of the first guiding arc groove 13, so that the cylindrical pin 40 on the lens 30 is separated from the connecting member 10. Then, by changing the position of the lens 30, the second guiding arc groove 31 of the lens 30 is separated from the connecting member 10, so as to disassemble the lens 30 from the connecting member 10.

[0027] Specifically, the plug 20 is integrally arc-shaped. One end of the plug 20 close to the first guiding arc groove 13 has a sharp socket 22. A slot 14 matching the plug 20 is provided on the connecting member 10. The other end of the plug 20 is exposed outside the connecting member 10 after the plug 20 is inserted into the slot 14.

[0028] To control the insertion / removal position and stroke of the plug 20, a guide block 23 is provided on one side of the plug 20, and a guide groove 16 is provided on the corresponding side edge of the slot 14. The length of the guide groove 16 is equal to the stroke of the plug 20. When the guide block 23 on the plug 20 is located on the side of the guide groove 16 away from the opening 131, the socket 22 is located on one side of the opening 131. When the guide block 23 on the plug 20 is located on the side of the guide groove 16 close to the opening 131, the socket 22 is located at the bottom of the opening 131.

[0029] Since the plug 20 is slidably connected to the slot 14, the movement of the plug 20 in the slot 14 is uncontrollable, which may cause the plug 20 to move unrestrictedly in the slot 14 and result in the detachment of the lens 30. To control the movement of the plug 20, a tongue 21 is provided on the other side of the plug 20, and a corresponding groove 15 is provided on one side of the slot 14. In one embodiment, the tongue 21 is an elastic tongue 21 extending from the outer side of the side surface of the plug 20. The elastic tongue 21 is in an S shape, and two consecutive arc-shaped grooves 15 are provided on one side of the corresponding slot 14. The two arc-shaped grooves 15 correspond to the stroke of the plug 20. When the tongue 21 on the plug 20 is located in the groove 15 away from the opening 131, the socket 22 is located on one side of the opening 131. When the tongue 21 on the plug 20 is located in the groove 15 close to the opening 131, the socket 22 is located at the bottom of the opening 131. In this way, the original unrestricted movement of the plug 20 is restricted to an orderly movement at two positions, and the reciprocating and orderly movement of the plug 20 can be realized through the elastic tongue 21. By applying an external force, the plug 20 can be pushed in the direction of the opening 131 or pulled out in the opposite direction.

[0030] Refer to Figure 1 , the connecting member 10 is provided with a screw hole, and the connecting member 10 can be detachably connected to the helmet body through a screw 50 and a gasket, which is convenient for the installation of the connecting member 10.

[0031] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A portable disassembly structure for helmet lenses, characterized in that: The invention comprises a connecting member, wherein the connecting member is provided with a pivoting portion, the pivoting portion is protrudingly arranged on the connecting member, and the end of the pivoting portion is provided with a flange extending radially outward; a first guide arc groove is provided below the pivoting portion; and the invention also comprises a lens, wherein the end of the lens is provided with a second guide arc groove matching with the pivoting portion, the lens below the second guide arc groove is provided with a cylindrical pin, and the end of the cylindrical pin is provided with an outer flange extending radially outward; The second guide arc groove of the lens can be sleeved on the pivotal portion, and at the same time, the first guide arc groove of the connecting member can be sleeved on the cylindrical pin.

2. A portable and disassembly structure for helmet lenses according to claim 1, characterized in that: The upper end of the first guide arc groove connected to the connector is a spiral opening, and a slot is provided on the connector on one side of the opening, and a plug-in is provided in the slot.

3. The portable disassembly structure of helmet lenses according to claim 2, characterized in that: The plug-in is in an arc shape as a whole, and has a sharp socket at one end of the plug-in close to the first guide arc groove. The connector is provided with a slot matching the plug-in, and the other end of the plug-in is exposed on the outside of the connector after the plug-in is inserted into the slot.

4. The portable disassembly structure of helmet lenses according to claim 3, characterized in that: A guide block is provided on one side of the plug-in, and a guide groove is provided on the corresponding side of the slot.

5. The portable disassembly structure of helmet lenses according to claim 4, characterized in that: A latch tongue is disposed on the other side of the plug-in, and a latch groove is disposed on one side of the corresponding slot.

6. The portable disassembly structure of helmet lenses according to claim 5, characterized in that: The latch tongue is an elastic latch tongue extending from the outside of the side surface of the plug-in, and the elastic latch tongue is S-shaped, and two continuous arc-shaped latch grooves are provided on one side of the corresponding slot.

Images