CN113944858B - Tip lorry capable of being used on helmet - Google Patents
Tip lorry capable of being used on helmet Download PDFInfo
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- CN113944858B CN113944858B CN202111107769.XA CN202111107769A CN113944858B CN 113944858 B CN113944858 B CN 113944858B CN 202111107769 A CN202111107769 A CN 202111107769A CN 113944858 B CN113944858 B CN 113944858B
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- 230000000670 limiting effect Effects 0.000 claims description 51
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- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 238000013016 damping Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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Abstract
The application provides a dump truck capable of being used on a helmet, which comprises a fixed connecting mechanism, a rotary lifting mechanism, a bracket, an angle fine adjustment mechanism and an up-down and front-back adjustment mechanism; the fixed connecting mechanism is arranged on the helmet; the utility model discloses a helmet, including fixed connection mechanism and support, angle fine-tuning mechanism, fixed connection mechanism and support, the rotatory mechanism of raising is located between the one end of fixed connection mechanism and support, angle fine-tuning mechanism locates the other end of support and from top to bottom and between the front and back adjustment mechanism, the mechanism is installed to first apparent mechanism be in from top to bottom and on the front and back adjustment mechanism, with the mechanism of showing fixed connection mechanism, the mechanism drives first apparent mechanism through the upper and lower and front and back adjustment about the mechanism drives in the tip truck, angle fine-tuning mechanism realizes the angle fine-tuning of first apparent mechanism simultaneously, adapts to the use of different angles, when not using, the mechanism of raising through the upset simultaneously, adjust first apparent mechanism to the helmet top to detachable fixed connection mechanism sets up, can realize that whole tip truck dismantles fast for it is convenient that first apparent mechanism dismantles.
Description
Technical Field
The application relates to the technical field of mechanical equipment, in particular to a dump truck capable of being used on a helmet.
Background
The correlation technique of current intelligent helmet is more ripe, set up on the part helmet by collection pronunciation, shoot, the bluetooth, body temperature control, keep warm, the integrative head of functions such as GPS navigation and location shows the mechanism, the intelligence level of helmet has been promoted, but head shows mechanism snap-on usually, it is inconvenient in the use to make, for example, can not adjusting position when shooing, and need take off in order to prevent to shelter from the sight when temporarily not using, still need install when using again, the handling ease, and head shows the device and usually through bolt snap-on, need unscrew the bolt when head shows the mechanism and does not use to take off, dismantle not convenient.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the purpose of this application provides a tip lorry that can be used to helmet, show the mechanism with the head and fix on the helmet through the tip lorry, through in the tip lorry from top to bottom and around adjustment mechanism drive show the mechanism with the head adjust from top to bottom, angle fine-tuning realizes the angle fine setting that shows the mechanism with the head simultaneously, adapt to the use of different angles, when not using, simultaneously, raise the mechanism through the upset and transfer the mechanism with the head to the helmet top, and detachable fixed connection mechanism sets up, can realize whole tip lorry and dismantle fast, make the dismantlement of show mechanism convenient.
In order to achieve the purpose, the dump truck capable of being used on the helmet comprises a fixed connecting mechanism, a rotary lifting mechanism, a support, an angle fine adjustment mechanism and an up-down and front-back adjustment mechanism; the fixed connecting mechanism is arranged on the helmet; the rotary lifting mechanism is arranged between the fixed connecting mechanism and one end of the bracket and is used for driving the bracket to rotate on the fixed connecting mechanism in a large angle; the angle fine adjustment mechanism is arranged between the other end of the bracket and the up-down and front-back adjustment mechanisms and is used for driving the up-down and front-back adjustment mechanisms to rotate at one end of the bracket in a small range; the head display mechanism is arranged on the up-down and front-back adjusting mechanism and drives the head display mechanism to move up and down and back and forth through the up-down and front-back adjusting mechanism.
Further, the fixed connecting mechanism comprises a base, and the base is arranged on the helmet; the base is detachably provided with a connecting support plate, and a mounting seat for mounting the rotary lifting mechanism is fixed on the connecting support plate.
Furthermore, the fixed connection mechanism also comprises a push plate, the surface of the base is fixed with a first clamping table and a second clamping table which are oppositely arranged, and the middle parts of the side walls of the opposite sides of the first clamping table and the second clamping table are respectively provided with a first locking groove and a second locking groove; a first boss is fixed on one side wall of the connecting support plate and clamped in the first locking groove; the middle part of the surface of the connecting support plate is provided with a mounting hole extending to one side, the mounting hole and the first boss are respectively positioned at two opposite sides of the connecting support plate, and the push plate is positioned in the mounting hole; a second boss is fixed on one side wall of the push plate, the second boss is clamped in a second locking groove, a first spring is arranged on the other side wall, opposite to the push plate, of the push plate, and one end of the first spring is connected with the side wall of the hole of the mounting hole.
Furthermore, a first sliding groove is formed in the middle of the side wall of the connecting support plate on the side opposite to the first boss, and a sliding U plate capable of moving along the first sliding groove is clamped in the first sliding groove; two second set screws are arranged on two sides of the surface of the connecting support plate, two parallel linear grooves are formed in the sliding U plate, and the two second set screws are respectively inserted into the two linear grooves; the push plate is provided with a first set screw, the sliding U plate is provided with an inclined line groove, the inclined line groove is obliquely arranged relative to the linear groove, and the first set screw is inserted in the inclined line groove.
Furthermore, the mounting seat comprises a mounting plate which is fixedly mounted on the surface of the connecting support plate, and a first support plate and a second support plate which are oppositely arranged are vertically fixed on the surface of the mounting plate; the rotary lifting mechanism comprises a swing arm and a button support; the swing arm-like structure comprises a side arm which is fixedly arranged on a first support plate, a limiting fixing cylinder is fixed on the side wall of the side arm, and the limiting fixing cylinder penetrates through the first support plate; the button support penetrates through the side wall of the second support plate and is sleeved in the limiting fixed cylinder, a second spring is arranged at one end of the button support, and one end of the second spring is connected with the bottom of the limiting fixed cylinder; the side wall of the limiting fixed cylinder is provided with a strip-shaped sliding hole along the axial direction, the side wall of the button pillar is provided with a positioning bolt penetrating through the strip-shaped sliding hole, and the positioning bolt can move in the strip-shaped sliding hole; one side of support is provided with rotatory sleeve pipe, rotatory sleeve pipe box is established in spacing fixed cylinder outside, rotatory sleeve pipe's lateral wall is opened there is the spacing hole of U type, and positioning bolt is located the spacing hole of U type, and positioning bolt can follow the spacing hole of U type and remove.
Furthermore, the U-shaped limiting hole comprises two axial limiting holes axially arranged along the side wall of the rotating sleeve, and one ends of the two axial limiting holes are connected through an arc-shaped connecting hole; the axial limiting hole is parallel to the strip-shaped sliding hole, and the arc-shaped circle center of the arc-shaped connecting hole is overlapped with the axis of the rotary sleeve.
Furthermore, the up-down and front-back adjusting mechanism is provided with a first fixing block and a second fixing block which are oppositely arranged; the angle fine adjustment mechanism comprises a hexagonal positioning bolt arranged between a first fixed block and a second fixed block; a positioning cylinder is arranged at one end of the bracket, the hexagonal positioning bolt comprises a square column, two ends of the square column are respectively connected with a cylinder and a connecting column, the cylinder is arranged on a hexagonal head, and a butterfly nut is arranged at one end of the connecting column; an angle fine adjustment assembly is sleeved on the hexagonal positioning bolt, and an octagonal tube structure is arranged in one end of the positioning tube far away from the tube bottom; the angle fine setting subassembly includes octagon dish and sets up the dish that compresses tightly in octagon dish both sides, two it is fixed to compress tightly to connect between the dish, two the terminal surface that compresses tightly the dish all is fixed with rubber and compresses tightly the pad, rubber compresses tightly the pad and compresses tightly with octagon dish lateral wall and meet, octagon dish and compress tightly the dish and all overlap and establish on square post, octagon dish and octagon tubular construction cooperation and do not meet mutually with square post, two compress tightly set terminal surface middle part open have with square post complex quad slit, two compress tightly the dish and do not meet mutually with a location section of thick bamboo inner wall.
Furthermore, one end of the positioning cylinder is sleeved with a limiting square tube matched with the octagonal tube structure, one end of the limiting square tube is fixed with a cover plate, the hexagonal positioning bolt penetrates through the cover plate, and the side edge of the end face of the cover plate is connected with the end face of the positioning cylinder; a first clamping block is arranged on the cover plate, a first limiting clamping groove is formed in the end face of the positioning cylinder, and the first clamping block is clamped in the first limiting clamping groove; the end face of the cover plate is provided with a first arc-shaped groove which is concentric with the positioning cylinder, a second wave bead screw is arranged on the second fixing block, and one end of the second wave bead screw is inserted in the first arc-shaped groove; the outer surface of the cylinder bottom of the positioning cylinder is provided with a second arc-shaped groove which is concentric with the positioning cylinder, the first fixing block is provided with a third wave bead screw, and one end of the third wave bead screw is inserted into the second arc-shaped groove.
Furthermore, the up-down and front-back adjusting mechanism comprises a fixed frame, two oppositely arranged supporting plates are vertically fixed on the left surface and the right surface of the fixed frame, and connecting plates are vertically fixed at the top ends of the two supporting plates; a lead screw is arranged between the front edge and the rear edge of the fixing frame, a fixing assembly is mounted on the lead screw, and a head display mechanism is mounted on the fixing assembly; the connecting plate is provided with a mouth-shaped frame capable of moving up and down along the supporting plate, and the first fixing block and the second fixing block are vertically fixed to the top of the mouth-shaped frame.
Furthermore, the fixed component comprises a sliding plate, the sliding plate is sleeved on the screw rod through threads, a mounting fixed plate is fixed on the bottom surface of the sliding plate, and the head display mechanism is mounted on the mounting fixed plate; the left side and the right side of the surface of the connecting plate are respectively provided with a sliding clamping groove extending to one side, and the two sliding clamping grooves are separated by a partition plate; push rods are clamped in the two sliding clamping grooves, a locking block is fixed at one adjacent end of each push rod, a third spring is arranged on one side wall of each locking block, one end of each third spring is connected with the partition plate, a plurality of first meshing teeth are arranged on the other side wall of each locking block, and the first meshing teeth and the third springs are located on two opposite side walls of the locking blocks; the opposite side walls of the left side and the right side of the mouth-shaped frame are provided with a plurality of second meshing teeth, and the second meshing teeth are meshed with the first meshing teeth; a fixing plate is fixed between the two supporting plates, and the mouth-shaped frame is located between the fixing plate and the connecting plate.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a dump truck for a helmet according to an embodiment of the present application;
fig. 2 is a schematic structural view of a dump truck for a helmet according to another embodiment of the present application;
FIG. 3 is a schematic structural diagram of a fixed connection structure according to another embodiment of the present application;
FIG. 4 is a schematic partial structure of FIG. 3 of the present application;
FIG. 5 is a partial schematic structural view of FIG. 3 of the present application;
FIG. 6 is a schematic view of a portion of FIG. 3 of the present application;
FIG. 7 is a partial schematic structural view of FIG. 2 of the present application;
FIG. 8 is a schematic partial structure of FIG. 7 of the present application;
FIG. 9 is a schematic partial structure of FIG. 8 of the present application;
FIG. 10 is a schematic view of the construction of a stent according to the present application;
FIG. 11 is a schematic structural view of a stent of the present application;
FIG. 12 is a schematic view of the construction of a stent according to the present application;
FIG. 13 is a schematic view of a portion of the structure of FIG. 2;
FIG. 14 is a partial schematic structural view of FIG. 13;
FIG. 15 is a schematic partial structure view of FIG. 13;
FIG. 16 is a partial schematic structural view of FIG. 13;
FIG. 17 is a schematic view of the angle adjustment assembly of the present application;
FIG. 18 is an exploded view of the structure of FIG. 17 of the present application;
FIG. 19 is a schematic partial structure view of FIG. 16 of the present application;
FIG. 20 is a schematic structural view of the up-down and back-and-forth adjustment mechanism of the present application;
fig. 21 is a partial schematic view of fig. 20 of the present application.
In the figure, 100, a dump truck; 1. a fixed connection mechanism; 11. a base; 111. a first chuck table; 112. a second chuck table; 113. a stopper; 12. connecting the supporting plate; 121. mounting holes; 122. a second set screw; 123. a first boss; 13. a mounting seat; 131. a first support plate; 132. a second support plate; 14. sliding the U plate; 141. a diagonal line groove; 142. a linear groove; 15. pushing a plate; 151. a first spring; 152. a first set screw; 153. a second boss; 154. a clamping block; 2. a rotary lifting mechanism; 21. a swing-like arm; 211. a side arm; 212. a limiting fixing cylinder; 213. a strip-shaped slide hole; 214. a retainer ring; 215. an O-shaped rubber ring; 22. a button support; 221. sleeving the rod; 222. a pressing block; 23. a second spring; 24. positioning the bolt; 3. a support; 31. rotating the sleeve; 32. a U-shaped limiting hole; 321. an axial limiting hole; 322. an arc-shaped connecting hole; 33. a positioning cylinder; 331. a first limiting clamping groove; 332. a second arc-shaped slot; 34. an octagonal tube structure; 35. a first wave ball screw; 4. an angle fine-tuning mechanism; 41. a hexagonal positioning bolt; 411. a cylinder; 412. a square column; 413. connecting columns; 42. a butterfly nut; 43. an angle fine-tuning component; 431. an octagonal plate; 432. a compression disc; 433. a square hole; 434. a rubber compression pad; 44. a second wave ball screw; 45. a third wave ball screw; 46. limiting the square pipe; 47. a cover plate; 48. a gasket; 5. an up-down and front-back adjusting mechanism; 51. a first fixed block; 52. a second fixed block; 53. a fixing frame; 54. a support plate; 55. a connecting plate; 551. a sliding clamping groove; 552. a partition plate; 553. a push rod; 554. a locking block; 555. a third spring; 556. a first meshing tooth; 56. a lead screw; 57. a fixing assembly; 571. a sliding plate; 572. mounting a fixed plate; 573. a supporting strip; 58. a mouth-shaped frame; 581. a second meshing tooth; 59. and (7) fixing the plate.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic structural diagram of a dump truck usable on a helmet according to an embodiment of the present application.
Referring to fig. 1, a dump truck 100 for a helmet includes a fixed connection mechanism 1, a rotary raising mechanism 2, a support 3, an angle fine adjustment mechanism 4, and an up-down and front-back adjustment mechanism 5;
referring to fig. 2, the fixed connection mechanism 1 is disposed on the helmet, the whole dump truck is directly fixed to the front of the helmet by the fixed connection mechanism 1, so that the helmet is stably fixed, the rotary raising mechanism 2 is disposed between the fixed connection mechanism 1 and one end of the support 3, and is used for driving the support 3 to rotate on the fixed connection mechanism 1 at a large angle, that is, one end of the support 3 is disposed on the rotary raising mechanism 2 and rotates with the rotary raising mechanism 2 at a large angle, and the fine angle adjustment mechanism 4 is disposed between the other end of the support 3 and the up-down and front-back adjustment mechanisms 5, and is used for driving the up-down and front-back adjustment mechanisms 5 to rotate at one end of the support 3 at a small angle, and the head display mechanism is mounted on the up-down and front-back adjustment mechanisms 5, and can drive the head display mechanism to move up-down and back through the up-down and front-back adjustment mechanisms 5.
Referring to fig. 3, in another embodiment of the present invention, the fixed connection mechanism 1 includes a base 11, the base 11 is disposed on a helmet and directly fixed by screws, so as to implement the installation and fixation of the whole fixed connection mechanism 1 on the helmet, a connection support plate 12 is detachably mounted on the base 11, and a mounting seat 13 for installing the rotary raising mechanism 2 is fixed on the connection support plate 12; the disassembly of the dump truck is realized through the disassembly and the assembly of the connecting support plate 12, and the disassembly and the assembly are convenient.
Referring to fig. 4 and 5, in an embodiment of the present invention, the fixed connection mechanism 1 further includes a push plate 15, two first and second opposite clamping platforms 111 and 112 are fixed on a surface of the base 11, two opposite stoppers 113 are fixed on a surface of the base 11, a square structure is defined between the two stoppers 113 and the first and second clamping platforms 111 and 112, and the connection support plate 12 is clamped in the square structure.
Specifically, the middle parts of the side walls of the opposite sides of the first clamping table 111 and the second clamping table 112 are respectively provided with a first locking groove and a second locking groove, one side wall of the connecting support plate 12 is fixed with a first boss 123, the first boss 123 is clamped in the first locking groove, meanwhile, the middle part of the surface of the connecting support plate 12 is provided with a mounting hole 121 extending to one side, the mounting hole 121 and the first boss 123 are respectively located at the two opposite sides of the connecting support plate 12, and the push plate 15 is located in the mounting hole 121; a second boss 153 is fixed on one side wall of the push plate 15, the second boss 153 is clamped in a second locking groove, a first spring 151 is arranged on the other side wall opposite to the push plate 15, one end of the first spring 151 is connected with the side wall of the hole of the mounting hole 121, the second boss 153 exits from the locking groove or stretches into the locking groove by compression or stretching of the first spring 151, and then the connecting support plate 12 is taken down from the base 11 or fixed, so that the dump truck can be detachably mounted;
referring to fig. 6, in another embodiment of the present invention, a first sliding slot is formed in a middle portion of a side wall of the connecting support plate 12 opposite to the first boss 123, a sliding U-plate 14 capable of moving along the first sliding slot is clamped in the first sliding slot, a clamping block 154 is fixed on a side wall of the push plate 15, the clamping block 154 and the second boss 153 are respectively located at upper and lower ends of the same side wall of the push plate 15, a second sliding slot is formed between the clamping block 154, the second boss 153 and the side wall of the push plate 15, the sliding U-plate 14 passes through the second sliding slot and moves in the first sliding slot and the second sliding slot, two second set screws 122 are arranged on two sides of a surface of the connecting support plate 12, two parallel linear slots 142 are arranged on the sliding U-plate 14, the two second set screws 122 are respectively inserted in the two linear slots 142, the sliding U-plate 14 can move along a direction of the linear slot 142 by a limiting effect between the two linear slots 142 and the second set screws 122, a moving direction of the sliding U-plate 14 is controlled, and a moving direction of the sliding U-plate 14 is perpendicular to the mounting hole 121; meanwhile, a first fastening screw 152 is arranged on the push plate 15, namely, the first fastening screw 152 is arranged on a clamping block 154 on one side of the push plate 15, an inclined line groove 141 is formed in the sliding U plate 14, the inclined line groove 141 is obliquely arranged relative to the linear groove 142, the first fastening screw 152 is inserted in the inclined line groove 141, meanwhile, the sliding U plate 14 comprises a sliding strip, two ends of the sliding strip are vertically bent to form a push block, the sliding strip slides in the first sliding groove, the inclined line groove 141 and the linear groove 142 are both positioned in the middle of the surface of the sliding strip, the push plate 15 is pushed in the mounting hole 121 to move towards one side of the second boss 153 and move away from one side of the second boss 153 through the limiting action of the inclined line groove 141 and the first fastening screw 152, the first spring 151 is pressed and loosened by the push plate 15, the second boss 153 is clamped and stretched out in the second locking groove, when the second boss 153 is clamped in the mounting hole, when the mounting hole is stretched out, the connecting support plate 12 is slightly moved towards one side away from the first clamping table 111, the first boss 123 is moved out, then the support plate is taken out, the tipping bucket 123, the connecting support plate is taken off, the connecting support plate 12, the U plate is taken off, the clamping block 14, the sliding block 14 cannot be taken off, the sliding U plate 14, and the sliding plate 14 cannot be taken off the sliding strip 14, and the sliding strip 14 can not taken off under the limiting action of the sliding strip 14.
In one embodiment of the present invention, the mounting base 13 includes a mounting plate fixedly mounted on a surface of the connection support plate 12, and a first support plate 131 and a second support plate 132 are vertically fixed on a surface of the mounting plate and oppositely disposed.
Referring to fig. 7-10, in one embodiment of the present invention, the rotary raising mechanism 2 includes a swing-like arm 21, a button support 22;
the swing-like arm 21 comprises a side arm 211 fixed on the first support plate 131, a limit fixing cylinder 212 is fixed on the side wall of the side arm 211, and the limit fixing cylinder 212 penetrates through the first support plate 131; specifically, one end of the side arm 211 is fixed to the first bracket 131 by a screw, and the other end side wall is fixed to the stopper fixing cylinder 212.
The button support 22 passes through the side wall of the second support plate 132 and is sleeved in the limiting fixed cylinder 212, meanwhile, one end of the button support 22 is provided with a second spring 23, and one end of the second spring 23 is connected with the bottom of the limiting fixed cylinder 212; in detail, one end of the button support post 22 is provided with a sleeve rod 221, one end of the button support post 22 is provided with a pressing block 222, which is convenient for pressing the button support post 22, the diameter of the sleeve rod 221 is smaller than the outer diameter of one end of the button support post 22, the second spring 23 is sleeved on the sleeve rod 221, one end of the second spring is connected with the end surface of the button support post 22, and the other end of the second spring is connected with the bottom of the limit fixing cylinder 212.
The side wall of the limit fixing cylinder 212 is provided with a strip-shaped sliding hole 213 along the axial direction, the side wall of the button pillar 22 is provided with a positioning bolt 24 penetrating through the strip-shaped sliding hole 213, and the positioning bolt 24 can move in the strip-shaped sliding hole 213.
One side of support 3 is provided with rotating sleeve 31, rotating sleeve 31 cover is established at spacing fixed cylinder 212 outsidely, rotating sleeve 31's lateral wall is opened there is the spacing hole 32 of U type, positioning bolt 24 is arranged in the spacing hole 32 of U type, can follow the spacing hole 32 removal of U type, the spacing hole 32 of U type includes two spacing holes 321 of axial that set up along rotating sleeve 31 lateral wall axial, be connected through arc connecting hole 322 between the one end of two spacing holes 321 of axial, and the spacing hole 321 of axial parallels with bar slide opening 213, the arc centre of a circle of arc connecting hole 322 and rotating sleeve 31's axis coincidence, realize under button pillar 22 removal effect and through support 3's rotation that positioning bolt 24 removes along the spacing hole 32 of U type, realize support 3's upward rotation.
In one embodiment of the invention, one end of the position-limiting fixed cylinder 212 is provided with a retaining ring 214, and the position-limiting fixed cylinder 212 is connected with the second support plate 132 through the retaining ring 214.
In an embodiment of the present invention, an arc central angle of the arc connecting hole 322 is 80 degrees, so that in a rotation process of the bracket 3, the positioning bolt 24 moves to a connection position between one axial limiting hole 321 and the arc connecting hole 322 along one end of the axial limiting hole 321 by pressing the button support 22, then the bracket 3 is rotated, so that the positioning bolt 24 moves in the arc connecting hole 322, until the rotation is 80 degrees, the positioning bolt 24 moves to a connection position between the arc connecting hole 322 and the other axial limiting hole 321, at this time, the button support 22 is loosened, the button support 22 is driven to rebound under the action of the second spring 23, the positioning bolt 24 is driven to move to the other end of the axial limiting hole 321 along the axial limiting hole 321, at this time, the bracket 3 cannot rotate around the limiting fixing cylinder 212 any more through a limiting effect between the positioning bolt 24 and the axial limiting hole 321, and positioning is achieved.
In an embodiment of the invention, the outer parts of the two ends of the limiting fixing cylinder 212 are sleeved with the O-shaped rubber rings 215, the two O-shaped rubber rings 215 are connected with the inner surface of the side wall of the rotating sleeve 31, and the damping is increased by the connection between the two O-shaped rubber rings 215 and the rotating sleeve 31, so that the hand feeling is better during rotation.
Referring to fig. 11 to 19, in an embodiment of the present invention, the up-down and front-back adjusting mechanism 5 is provided with a first fixing block 51 and a second fixing block 52 which are oppositely arranged, the angle fine-adjusting mechanism 4 includes a hexagonal positioning bolt 41 installed between the first fixing block 51 and the second fixing block 52, one end of the hexagonal positioning bolt 41 passes through the second fixing block 52 and then is installed with a butterfly nut 42, and the butterfly nut 42 is used for fixing the hexagonal positioning bolt 41 to prevent the rotation thereof;
in addition, a positioning cylinder 33 is arranged at one end of the bracket 3, which is far away from the rotating sleeve 31, the hexagonal positioning bolt 41 comprises a square column 412, two ends of the square column 412 are respectively connected with a cylinder 411 and a connecting column 413, the cylinder 411 is arranged on a hexagonal head, an external thread is arranged on the outer surface of the side wall of one end of the connecting column 413, the butterfly nut 42 is fixed on the connecting column 413 through threaded connection, the bottom of the positioning cylinder 33 is sleeved on the cylinder 411 and can rotate around the cylinder 411, and the positioning cylinder 33 is located between the first fixing block 51 and the second fixing block 52; in detail, the bottom of the positioning cylinder 33 is provided with a rotation hole, and the positioning cylinder 33 is sleeved on the column 411 through the rotation hole.
In an embodiment of the invention, an angle fine-tuning assembly 43 is sleeved on the hexagonal positioning bolt 41, an octagonal tube structure 34 is arranged in one end of the positioning cylinder 33 far away from the cylinder bottom, the angle fine-tuning assembly 43 comprises an octagonal disc 431 and pressing discs 432 arranged on two sides of the octagonal disc 431, the two pressing discs 432 are fixedly connected, rubber pressing pads 434 are fixed on end faces of the two pressing discs 432, the rubber pressing pads 434 are in pressing connection with side walls of the octagonal disc 431, the octagonal disc 431 and the pressing discs 432 are sleeved on the square column 412, the octagonal disc 431 is matched with the octagonal tube structure 34 and is not connected with the square column 412, square holes 433 matched with the square column 412 are formed in the middle parts of the end faces of the two pressing discs 432, the two pressing discs 432 are not connected with inner walls of the positioning cylinder 33, when the hexagonal positioning bolt 41 rotates, the pressing discs 432 are driven to rotate in the positioning cylinder 33 through the square column 412, and when the hexagonal positioning bolt 41 rotates slowly, and the hexagonal damping effect is achieved by the effect that the rubber pressing pads 434 are slowly rotated due to the pressing pads 434 and the rubber pressing discs 434 are connected with the side walls of the octagonal disc 432.
In another embodiment of the present invention, the first wave ball screw 35 is fixed on the sidewall of the positioning cylinder 33, and the steel ball of the first wave ball screw 35 is connected to a side surface of the octagonal plate 431, so as to generate a certain resistance to the rotation of the octagonal plate 431, so that the octagonal plate 431 and the positioning cylinder 33 are relatively fixed and cannot rotate in the positioning cylinder 33.
In another embodiment of the present invention, a position-limiting square tube 46 matched with the octagonal tube structure 34 is sleeved at one end of the positioning cylinder 33, a cover plate 47 is fixed at one end of the position-limiting square tube 46, the hexagonal positioning bolt 41 penetrates through the cover plate 47, the end surface side of the cover plate 47 is connected with the end surface of the positioning cylinder 33, a first fixture block 471 is arranged on the cover plate 47, a first position-limiting slot 331 is formed in the end surface of the positioning cylinder 33, the first fixture block 471 is clamped in the first position-limiting slot 331 for limiting the position between the position-limiting square tube 46 and the positioning cylinder 33, so that when the first fixing block 51 and the second fixing block 52 rotate, under the limiting effect between the first fixture block 471 and the first position-limiting slot 331, the cover plate 47 cannot rotate relative to the positioning cylinder 33, meanwhile, a first arc-shaped slot 472 concentrically arranged with the positioning cylinder 33 is formed in the end surface of the cover plate 47, a second bead screw 44 is installed on the second fixing block 52, one end of the second bead screw 44 is inserted in the first arc-shaped slot 472 for limiting the angle of the second fixing block 52 rotating relative to the positioning cylinder 33.
In another embodiment of the present invention, a second arc-shaped groove 332 concentric with the positioning cylinder 33 is formed on the outer surface of the cylinder bottom of the positioning cylinder 33, the first fixing block 51 is mounted with a third ball screw 45, one end of the third ball screw 45 is inserted into the second arc-shaped groove 332 for limiting the rotation angle of the positioning cylinder 33, and the second fixing block 52 and the first positioning block 51 are respectively limited by the second ball screw 44 and the third ball screw 45, so that the rotation angle is fixed when the second fixing block 52 and the first positioning block 51 rotate simultaneously.
In addition, it should be noted that two ends of the hexagonal positioning bolt 41 are respectively sleeved with a gasket 48, the bottom of the positioning cylinder 33 is connected with the first fixing block 51 through one gasket 48, and the cover plate 47 is connected with the second fixing block 52 through the other gasket 48.
Referring to fig. 20 to 21, in an embodiment of the present invention, the up-down and front-back adjusting mechanism 5 includes a fixing frame 53, two support plates 54 are vertically fixed on left and right side surfaces of the fixing frame 53, the top ends of the two support plates 54 are vertically fixed with a connecting plate 55, a screw 56 is disposed between front and back sides of the fixing frame 53, a fixing assembly 57 is mounted on the screw 56, the fixing assembly 57 is driven by the screw 56 to move back and forth along the fixing frame 53, the head display mechanism is mounted on the fixing assembly 57, the connecting plate 55 is provided with a mouth-shaped frame 58 capable of moving up and down along the support plates 54, wherein the first fixing block 51 and the second fixing block 52 are vertically fixed on both sides of the top surface of the mouth-shaped frame 58.
In detail, the fixing component 57 includes a sliding plate 571, the top of the sliding plate 571 is vertically fixed to be installed on the screw rod 56 through a threaded sleeve, the bottom of the sliding plate 571 is fixed to be installed with a fixing plate 572, the top end surface is installed and fixed with a supporting bar 573, the head display mechanism is installed on the fixing plate 572, two sides of the supporting bar 573 are respectively connected to the left and right sides of the fixing frame 53, the sliding plate 571 is prevented from being driven to rotate by the rotation of the screw rod 56, the sliding plate 571 can only move along the screw rod 56 through the limiting action of the left and right sides of the fixing frame 53, the head display mechanism is driven to move through the movement of the sliding plate 571, and meanwhile, the whole up-down and front-back adjusting mechanism 5 is moved through the relative movement between the opening frame 58 and the connecting plate 55, thereby adjusting the position of the head display mechanism.
In one embodiment of the invention, the left side and the right side of the surface of the connecting plate 55 are respectively provided with a sliding clamping groove 551 extending to one side, the two sliding clamping grooves 551 are separated by a partition 552, push rods 553 are clamped in the two sliding clamping grooves 551, adjacent ends of the two push rods 553 are respectively fixed with a locking block 554, one side wall of the locking block 554 is provided with a guide groove, a third spring 555 is arranged in the guide groove, one end of the third spring 555 is connected with the partition 552, the other side wall of the locking block 554 is provided with a plurality of first meshing teeth 556, and the first meshing teeth 556 and the third spring 555 are positioned on two opposite side walls of the locking block 554; the opposite side walls of the left and right sides of the mouth-shaped frame 58 are provided with a plurality of second meshing teeth 581, the second meshing teeth 581 are meshed with the first meshing teeth 556, the push rods 553 at the two sides press the locking blocks 554 tightly on the left and right sides of the mouth-shaped frame 58 through the elastic action of the third spring 555, and the first meshing teeth 556 are meshed with the second meshing teeth 581, so that the mouth-shaped frame 58 is locked between the two locking blocks 554, meanwhile, the fixing plate 59 is fixed between the two supporting plates 54, the mouth-shaped frame 58 is positioned between the fixing plate 59 and the connecting plate 55, and the mouth-shaped frame 58 can be effectively prevented from being disengaged from the connecting plate 55 through the limiting and fixing action of the fixing plate 59 and the connecting plate 55; in the adjusting process, the push rod 553 is pushed to compress the third spring 555, so that the first meshing teeth 556 and the second meshing teeth 581 are far away from each other, meshing is released, then the fixing frame 53 is moved upwards or downwards to realize the up-and-down movement of the head display mechanism, after the fixing frame is moved to a certain position, the pushing force applied to the push rod 553 is loosened, the push rod 553 moves towards two sides under the elastic force action of the third spring 555 until the first meshing teeth 556 and the second meshing teeth 581 are meshed to realize the fixing of the mouth-shaped frame 58 to the connecting plate 55, and further the fixing of the position of the head display mechanism is realized.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A tip lorry used on a helmet is characterized by comprising a fixed connecting mechanism, a rotary lifting mechanism, a bracket, an angle fine-adjustment mechanism and an up-down and front-back adjustment mechanism;
the fixed connecting mechanism is arranged on the helmet;
the rotary lifting mechanism is arranged between the fixed connecting mechanism and one end of the bracket and is used for driving the bracket to rotate on the fixed connecting mechanism in a large angle;
the angle fine adjustment mechanism is arranged between the other end of the bracket and the up-down and front-back adjustment mechanisms and is used for driving the up-down and front-back adjustment mechanisms to rotate at one end of the bracket in a small range;
the head display mechanism is arranged on the up-down and front-back adjusting mechanism and drives the head display mechanism to move up and down and back and forth through the up-down and front-back adjusting mechanism.
2. The tip lorry of claim 1, wherein said fixed connection means comprises a base, said base being mounted on the helmet;
the base is detachably provided with a connecting support plate, and a mounting seat for mounting the rotary lifting mechanism is fixed on the connecting support plate.
3. The tip lorry according to claim 2, wherein the fixed connection mechanism further comprises a push plate, the surface of the base is fixed with a first clamping platform and a second clamping platform which are oppositely arranged, and the middle parts of the side walls of the first clamping platform and the second clamping platform at the opposite sides are respectively provided with a first locking groove and a second locking groove;
a first boss is fixed on one side wall of the connecting support plate and clamped in the first locking groove;
the middle part of the surface of the connecting support plate is provided with a mounting hole extending to one side, the mounting hole and the first boss are respectively positioned at two opposite sides of the connecting support plate, and the push plate is positioned in the mounting hole;
a second boss is fixed on one side wall of the push plate, the second boss is clamped in a second locking groove, a first spring is arranged on the other side wall, opposite to the push plate, of the push plate, and one end of the first spring is connected with the side wall of the hole of the mounting hole.
4. The tip lorry according to claim 3, wherein the connecting support plate has a first sliding slot formed in a middle portion of a side wall thereof opposite to the first boss, and a sliding U-plate capable of moving along the first sliding slot is engaged with the first sliding slot;
two second set screws are arranged on two sides of the surface of the connecting support plate, two parallel linear grooves are formed in the sliding U plate, and the two second set screws are respectively inserted into the two linear grooves;
the push plate is provided with a first set screw, the sliding U plate is provided with an inclined line groove, the inclined line groove is obliquely arranged relative to the linear groove, and the first set screw is inserted in the inclined line groove.
5. The tip lorry according to claim 2, wherein the mounting seat comprises a mounting plate fixedly mounted on the surface of the connecting support plate, and a first support plate and a second support plate which are oppositely arranged are vertically fixed on the surface of the mounting plate;
the rotary lifting mechanism comprises a swing arm and a button support;
the swing arm-like structure comprises a side arm which is fixedly arranged on a first support plate, a limiting fixing cylinder is fixed on the side wall of the side arm, and the limiting fixing cylinder penetrates through the first support plate;
the button support penetrates through the side wall of the second support plate and is sleeved in the limiting fixed cylinder, a second spring is arranged at one end of the button support, and one end of the second spring is connected with the bottom of the limiting fixed cylinder;
the side wall of the limiting fixed cylinder is provided with a strip-shaped sliding hole along the axial direction, the side wall of the button pillar is provided with a positioning bolt penetrating through the strip-shaped sliding hole, and the positioning bolt can move in the strip-shaped sliding hole;
one side of support is provided with rotatory sleeve pipe, rotatory sleeve pipe box is established in spacing fixed cylinder outside, rotatory sleeve pipe's lateral wall is opened there is the spacing hole of U type, and positioning bolt is located the spacing hole of U type, and positioning bolt can follow the spacing hole of U type and remove.
6. The tip lorry according to claim 5, wherein the U-shaped limiting hole comprises two axial limiting holes axially arranged along the side wall of the rotating sleeve, and one ends of the two axial limiting holes are connected through an arc-shaped connecting hole;
the axial limiting hole is parallel to the strip-shaped sliding hole, and the arc-shaped circle center of the arc-shaped connecting hole is overlapped with the axis of the rotary sleeve.
7. The tip lorry according to claim 1, wherein the up-down and back-forth adjusting mechanism is provided with a first fixed block and a second fixed block which are oppositely arranged;
the angle fine adjustment mechanism comprises a hexagonal positioning bolt arranged between a first fixed block and a second fixed block;
one end of the bracket is provided with a positioning cylinder, the hexagonal positioning bolt comprises a square column, two ends of the square column are respectively connected with a cylinder and a connecting column, the cylinder is arranged on the hexagonal head, and one end of the connecting column is provided with a butterfly nut;
an angle fine adjustment assembly is sleeved on the hexagonal positioning bolt, and an octagonal tube structure is arranged in one end of the positioning tube far away from the tube bottom;
the angle fine setting subassembly includes octagon dish and sets up the dish that compresses tightly in octagon dish both sides, two it is fixed to compress tightly to connect between the dish, two the terminal surface that compresses tightly the dish all is fixed with rubber and compresses tightly the pad, rubber compresses tightly the pad and compresses tightly with octagon dish lateral wall and meet, octagon dish and compress tightly the dish and all overlap and establish on square post, octagon dish and octagon tubular construction cooperation and do not meet mutually with square post, two compress tightly set terminal surface middle part open have with square post complex quad slit, two compress tightly the dish and do not meet mutually with a location section of thick bamboo inner wall.
8. The tip lorry according to claim 7, wherein one end of the positioning cylinder is sleeved with a limit square pipe matched with the octagonal pipe structure, one end of the limit square pipe is fixed with a cover plate, the hexagonal positioning bolt passes through the cover plate, and the side of the end face of the cover plate is connected with the end face of the positioning cylinder;
a first clamping block is arranged on the cover plate, a first limiting clamping groove is formed in the end face of the positioning cylinder, and the first clamping block is clamped in the first limiting clamping groove;
the end face of the cover plate is provided with a first arc-shaped groove which is concentric with the positioning cylinder, a second wave bead screw is arranged on the second fixing block, and one end of the second wave bead screw is inserted in the first arc-shaped groove;
the outer surface of the cylinder bottom of the positioning cylinder is provided with a second arc-shaped groove which is concentric with the positioning cylinder, the first fixing block is provided with a third wave bead screw, and one end of the third wave bead screw is inserted into the second arc-shaped groove.
9. The tip lorry according to claim 7, wherein the up-down and front-back adjusting mechanism comprises a fixed frame, two opposite support plates are vertically fixed on the left and right surfaces of the fixed frame, and a connecting plate is vertically fixed on the top ends of the two support plates;
a lead screw is arranged between the front edge and the rear edge of the fixing frame, a fixing assembly is arranged on the lead screw, and a head display mechanism is arranged on the fixing assembly;
the connecting plate is provided with a mouth-shaped frame capable of moving up and down along the supporting plate, and the first fixing block and the second fixing block are vertically fixed to the top of the mouth-shaped frame.
10. The tip lorry according to claim 9, wherein the fixing component comprises a sliding plate, the sliding plate is mounted on the lead screw through a threaded sleeve, a mounting and fixing plate is fixed on the bottom surface of the sliding plate, a supporting bar is fixed on the top end surface of the sliding plate, the head display mechanism is mounted on the mounting and fixing plate, and two sides of the supporting bar are respectively connected with the left side and the right side of the fixing frame;
the left side and the right side of the surface of the connecting plate are respectively provided with a sliding clamping groove extending to one side, and the two sliding clamping grooves are separated by a partition plate;
push rods are clamped in the two sliding clamping grooves, a locking block is fixed at one adjacent end of each push rod, a third spring is arranged on one side wall of each locking block, one end of each third spring is connected with the partition plate, a plurality of first meshing teeth are arranged on the other side wall of each locking block, and the first meshing teeth and the third springs are located on two opposite side walls of the locking blocks;
the opposite side walls of the left side and the right side of the mouth-shaped frame are provided with a plurality of second meshing teeth, and the second meshing teeth are meshed with the first meshing teeth;
a fixing plate is fixed between the two supporting plates, and the mouth-shaped frame is located between the fixing plate and the connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111107769.XA CN113944858B (en) | 2021-09-22 | 2021-09-22 | Tip lorry capable of being used on helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111107769.XA CN113944858B (en) | 2021-09-22 | 2021-09-22 | Tip lorry capable of being used on helmet |
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| Publication Number | Publication Date |
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| CN113944858A CN113944858A (en) | 2022-01-18 |
| CN113944858B true CN113944858B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111107769.XA Active CN113944858B (en) | 2021-09-22 | 2021-09-22 | Tip lorry capable of being used on helmet |
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| CN (1) | CN113944858B (en) |
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| CN201167608Y (en) * | 2008-02-26 | 2008-12-24 | 中国人民解放军总后勤部军需装备研究所 | Helmet display apparatus stand |
| SE0950286A1 (en) * | 2009-04-29 | 2010-10-30 | Spuhr I Dalby Ab | Carrying system for head-worn equipment |
| CN209449753U (en) * | 2018-09-30 | 2019-10-01 | 北京金箭工程技术研究院 | Helmet bracket |
| CN211298571U (en) * | 2019-07-17 | 2020-08-21 | 武汉高德红外股份有限公司 | Self-locking support and helmet |
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| US7219370B1 (en) * | 2003-10-06 | 2007-05-22 | Wilcox Industries Corp. | Helmet mounting systems |
| US8120857B2 (en) * | 2008-10-15 | 2012-02-21 | Gentex Corporation | Apparatus and method for mounting and calibrating a helmet-mounted display |
| US8127374B2 (en) * | 2009-01-16 | 2012-03-06 | Exelis, Inc. | Side positioned vision enhancement device mount |
| GB2539107B (en) * | 2009-06-01 | 2017-04-05 | Wilcox Ind Corp | Helmet mount for viewing device |
| CN205537316U (en) * | 2016-04-26 | 2016-08-31 | 中国人民解放军防空兵学院 | Simulated training helmet |
| CN206791781U (en) * | 2017-05-15 | 2017-12-26 | 中山目标一电子科技有限公司 | A kind of connecting bracket of night observation device and the tactics helmet |
| CN208107599U (en) * | 2018-03-30 | 2018-11-16 | 上海索酷图像技术有限公司 | Bracket |
| CN110500498B (en) * | 2019-09-05 | 2024-07-19 | 杨鹏飞 | Night vision device bracket |
| CN211354046U (en) * | 2019-11-18 | 2020-08-28 | 中国二冶集团有限公司 | Lighting device for safety helmet and safety helmet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201167608Y (en) * | 2008-02-26 | 2008-12-24 | 中国人民解放军总后勤部军需装备研究所 | Helmet display apparatus stand |
| SE0950286A1 (en) * | 2009-04-29 | 2010-10-30 | Spuhr I Dalby Ab | Carrying system for head-worn equipment |
| CN209449753U (en) * | 2018-09-30 | 2019-10-01 | 北京金箭工程技术研究院 | Helmet bracket |
| CN211298571U (en) * | 2019-07-17 | 2020-08-21 | 武汉高德红外股份有限公司 | Self-locking support and helmet |
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| CN113944858A (en) | 2022-01-18 |
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