CN218211913U

CN218211913U - Helmet fixed-point visual field testing device

Info

Publication number: CN218211913U
Application number: CN202222854542.8U
Authority: CN
Inventors: 李建华; 秦晓辉; 林昱亮; 李鹏飞
Original assignee: Hubei Hongtu Instrument Co ltd
Current assignee: Hubei Hongtu Instrument Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-03
Anticipated expiration: 2032-10-28

Abstract

The utility model relates to a helmet field of vision test technical field discloses helmet fixed point field of vision testing arrangement, comprises a workbench, the top middle part fixedly connected with stopper of workstation, the top fixedly connected with connecting block of stopper, two calibration sticks of top fixedly connected with of connecting block, the top of calibration stick is provided with the model, the bottom of model is provided with four spacing grooves, the three connecting rod of top fixedly connected with of workstation, the outside fixedly connected with riser of connecting rod. The utility model discloses in, use through the cooperation between connecting rod, riser isotructure to can the actual angle of accurate test helmet, and can measure the actual measurement angle error size of helmet, make testing arrangement's practicality higher, use through the cooperation between locating hole, the locating lever isotructure, can adjust second adjustment sheet angle and height, thereby reduced the device's limitation.

Description

Helmet fixed-point visual field testing device

Technical Field

The utility model relates to a helmet field of vision test technical field especially relates to helmet fixed point field of vision testing arrangement.

Background

After the helmet is produced, a series of tests are often needed to ensure the use safety of the helmet and the helmet can be put on the market, the helmet visual field is an important factor for observing external dangers of a user, so that the helmet visual field test is important, and the helmet visual field test device plays an important role in testing the helmet visual field.

However, the existing helmet visual field testing device has the following disadvantages in the actual use process, one of which is that the measuring scale used for testing the head model is a fixed angle measuring scale mode under the standard requirement, the measuring angle cannot be adjusted, the angle which can only measure whether the helmet meets the standard requirement can be measured, but the actual angle of the helmet cannot be accurately tested, the angle error of the actual helmet cannot be measured, the actual significance of the test is lacked, and the other one is that when the helmet with different sizes or different types is tested, the height adjustment and the angle adjustment of the adjusting sheet cannot be carried out, so that the limitation of the testing device is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a fixed-point visual field testing device for a helmet.

In order to realize the purpose, the utility model adopts the following technical scheme: fixed point visual field testing arrangement of helmet, comprises a workbench, the top middle part fixedly connected with stopper of workstation, the top fixedly connected with connecting block of stopper, two calibration sticks of top fixedly connected with of connecting block, the top of calibration stick is provided with the model, the bottom of model is provided with four spacing grooves, the three connecting rod of top fixedly connected with of workstation, the outside fixedly connected with riser of connecting rod, the front end fixedly connected with fixed plate of riser, the bottom of fixed plate is rotated and is connected with the calibrated scale, the first fixed block of outside fixedly connected with of calibrated scale, the front end of first fixed block is provided with the laser head, the front end of laser head is provided with the second fixed block, the top off-centre fixedly connected with locating lever of workstation, the outside of locating lever is provided with a plurality of locating holes, the first supporting block of outside bottom fixedly connected with of locating lever, the front end fixedly connected with first regulating blade of first supporting block, the top of first supporting block is provided with the second supporting block, the front end fixedly connected with the second regulating blade of second supporting block, the front end rotation of second supporting block is connected with the locating block, the top rotation of second supporting block is connected with threaded rod, the outside threaded connection of threaded rod is threaded sleeve.

As a further description of the above technical solution:

the outer parts of the two calibration rods are connected with the inner part of the limiting groove in a sliding mode.

As a further description of the above technical solution:

the rear end of the dial is attached to the front end of the fixing plate.

As a further description of the above technical solution:

the rear end of the second fixing block is fixedly connected with the front end of the first fixing block.

As a further description of the above technical solution:

the inside of second supporting shoe and the outside sliding connection of locating lever.

As a further description of the above technical solution:

the outer part of the positioning block is in threaded connection with the inner part of the positioning hole.

As a further description of the above technical solution:

the outside downside of threaded rod is connected with the inside rotation of first supporting block.

As a further description of the above technical solution:

the bottom end of the threaded sleeve is rotatably connected with the top end of the second supporting block.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, use through the cooperation between connecting rod, riser, calibrated scale, the first isotructure of laser for testing arrangement can adjust the measurement angle, thereby can the actual angle of accurate test helmet, and can measure the actual measurement angle error size of helmet, makes testing arrangement's practicality higher.

2. The utility model discloses in, use through the cooperation between locating hole, first supporting shoe, second supporting shoe, the locating lever isotructure, when measuring the helmet of other types, can adjust second adjustment sheet angle and height to the device's limitation has been reduced.

Drawings

Fig. 1 is a perspective view of the fixed-point visual field testing device for helmet according to the present invention;

fig. 2 is a schematic structural view of a calibration bar of the fixed-point visual field testing device of the helmet according to the present invention;

FIG. 3 is an enlarged view at A;

fig. 4 is a schematic structural view of a first adjusting sheet of the helmet fixed-point visual field testing device provided by the present invention;

fig. 5 is the utility model provides a helmet fixed point visual field testing arrangement threaded rod structure sketch map.

Illustration of the drawings:

1. a work table; 2. a limiting block; 3. connecting blocks; 4. a calibration bar; 5. a model; 6. a limiting groove; 7. a connecting rod; 8. a vertical plate; 9. a fixing plate; 10. a dial; 11. a first fixed block; 12. a second fixed block; 13. a laser head; 14. positioning a rod; 15. positioning holes; 16. a first support block; 17. a first adjustment tab; 18. a second support block; 19. a second tab; 20. positioning blocks; 21. a threaded rod; 22. and (4) a threaded sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a helmet fixed-point vision testing device comprises a workbench 1, wherein the workbench 1 supports structures such as a limiting block 2, the middle part of the top end of the workbench 1 is fixedly connected with the limiting block 2, the limiting block 2 is directly and fixedly connected with the middle part of the top end of the workbench 1, the top end of the limiting block 2 is fixedly connected with a connecting block 3, the connecting block 3 is directly and fixedly connected with the top end of the limiting block 2, the top end of the connecting block 3 is fixedly connected with two calibration rods 4, the two calibration rods 4 are respectively and fixedly connected with the front end and the rear end of the right side of the top end of the connecting block 3, a model 5 is arranged above the calibration rods 4, a helmet can be placed outside the model 5, four limiting grooves 6 are arranged at the bottom end of the model 5, the limiting grooves 6 play a limiting role in the internal calibration rods 4, the right two limiting grooves 6 on the right side are connected with the calibration rods 4, so that the right side of the helmet can be tested, the helmet is placed in a reverse manner, thereby two limiting grooves 6 at the front side are connected with a calibration rod 4, so that the left side of the helmet can be tested, the top end of the workbench 1 is fixedly connected with three connecting rods 7, the three connecting rods 7 are respectively and fixedly connected with the left side and the right side and the rear side of the top end of the workbench 1, the outer part of the connecting rods 7 is fixedly connected with a vertical plate 8, the vertical plate 8 is directly and fixedly connected with the outer front side of the connecting rods 7, the front end of the vertical plate 8 is fixedly connected with a fixed plate 9, the fixed plate 9 is directly and fixedly connected with the front side of the vertical plate 8, the bottom end of the fixed plate 9 is rotatably connected with a dial 10, the dial 10 is directly and rotatably connected with the bottom end of the fixed plate 9, the outer part of the dial 10 is fixedly connected with a first fixed block 11, the first fixed block 11 is directly and fixedly connected with the front end of the dial 10, the front end of the first fixed block 11 is provided with a laser head 13, the laser head 13 is directly installed at the front end of the first fixed block 11, the laser head 12 can irradiate laser so as to measure the visual field of the helmet, the front end of the laser head 13 is provided with a second fixed block 12, the position of the laser head 13 is fixed by connecting a first fixed block 11 with the second fixed block 12, the laser position irradiated by the laser head 13 is driven to move by rotating the dial 10, at the moment, scales on the dial 10 are observed so as to accurately test the actual angle of the helmet and measure the actual measurement angle error of the helmet, so that the practicability of the testing device is higher, the top eccentric part of the worktable 1 is fixedly connected with a positioning rod 14, the positioning rod 14 is fixedly connected to the top end of the worktable 1, the left side of the limiting block 2 is provided with a plurality of positioning holes 15 outside the positioning rod 14, the positioning holes 15 are threaded holes, and the bottom outside of the positioning rod 14 is fixedly connected with a first supporting block 16, the first supporting block 16 is directly and fixedly connected to the outside of the positioning rod 14, a first adjusting sheet 17 is fixedly connected to the front end of the first supporting block 16, the first adjusting sheet 16 is directly and fixedly connected to the front end of the first adjusting sheet 17, a second supporting block 18 is arranged at the top end of the first supporting block 16, the second supporting block 18 is in sliding connection with the outside of the positioning rod 14, a second adjusting sheet 19 is fixedly connected to the front end of the second supporting block 18, the first supporting block 18 is moved to drive the second adjusting sheet 19 to adjust the position where laser is irradiated, so that the view field of the helmet can be observed, the helmet with different models can be suitable, the limitation of the device is reduced, a positioning block 20 is rotatably connected to the front end of the second supporting block 18, the positioning block 20 is directly and rotatably connected to the inside of the second supporting block 18, and the positioning block 20 is rotated to fix the position of the second supporting block 18, the top of second supporting shoe 18 rotates to be connected with threaded rod 21, and second supporting shoe 18 plays support and limiting displacement to threaded rod 21, and the outside threaded connection of threaded rod 21 has threaded bush 22, through rotating threaded rod 21 to drive threaded bush 22 and rotate from top to bottom, further promotion second supporting shoe 18 reciprocates.

The outside of two calibration rods 4 is connected with the inside of a limiting groove 6 in a sliding manner, so that the model 5 can conveniently change directions, the rear end of a dial 10 is attached to the front end of a fixing plate 9, the dial 10 can rotate by taking the middle of the fixing plate 9 as a center, the rear end of a second fixing block 12 is fixedly connected with the front end of a first fixing block 11, so that the position of a laser head 13 can be fixed, the dial 10 cannot shake when rotating, and therefore measurement data is not accurate enough, the inside of the second supporting block 18 is connected with the outside of a positioning rod 14 in a sliding manner, so that the second supporting block 18 can slide up and down on the outside of the positioning rod 14, the outside of the positioning block 20 is connected with the inside of a positioning hole 15 through rotating the positioning block 20, so that the positioning block 20 can fix the position of the second supporting block 18 after moving, the lower side of the outside of a threaded rod 21 is connected with the inside of a first supporting block 16 in a rotating manner, the first supporting block 16 plays a supporting and limiting role on the threaded rod 21, the bottom end of a threaded sleeve 22 is connected with the top end of the second supporting block 18 in a rotating manner, and the threaded sleeve 22 can be driven to move up and down when moving.

The working principle is as follows: when the helmet is required to be subjected to fixed-point testing, the inside of the limiting groove 6 in the model 5 is attached to the calibration rod 4, the helmet is placed on the model 5, the laser head 13 is started to operate at the moment, laser can be irradiated on the helmet, the dial 10 is rotated at the moment, the first fixing block 11 and the second fixing block 12 are driven to move, the laser head 13 is further driven to move, when the laser reaches the specified position of the helmet, scales on the dial 10 are observed, the actual angle of the helmet can be accurately tested, the actual measurement angle error of the helmet can be measured, the practicability of the testing device is higher, when the helmet of other models is tested, the positioning block 20 is rotated anticlockwise, the positioning block 20 is separated from the positioning hole, the threaded rod 21 is rotated at the moment, the threaded sleeve 22 is driven to rotate, the second supporting block 18 slides upwards outside the positioning rod 14, when the proper position is adjusted, the positioning block 20 is rotated reversely, the threaded block 20 is in threaded connection with the other positioning hole 15, the first adjusting piece 17 and the second adjusting piece 19 are fixed in position, the second adjusting piece 19 can be adjusted, and the limitation of the device is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Helmet fixed point field of vision testing arrangement, including workstation (1), its characterized in that: the top end middle part of the workbench (1) is fixedly connected with a limiting block (2), the top end of the limiting block (2) is fixedly connected with a connecting block (3), the top end of the connecting block (3) is fixedly connected with two calibration rods (4), a model (5) is arranged above the calibration rods (4), four limiting grooves (6) are arranged at the bottom end of the model (5), three connecting rods (7) are fixedly connected with the top end of the workbench (1), vertical plates (8) are fixedly connected with the outer part of the connecting rods (7), fixing plates (9) are fixedly connected with the front ends of the vertical plates (8), a dial (10) is rotatably connected with the bottom end of the fixing plates (9), a first fixing block (11) is fixedly connected with the outer part of the dial (10), a laser head (13) is arranged at the front end of the first fixing block (11), a second fixing block (12) is arranged at the front end of the laser head (13), a positioning rod (14) is fixedly connected with the top end eccentric part of the workbench (1), a plurality of positioning holes (15) are arranged at the outer part of the positioning rod (14), a first supporting block (16) is fixedly connected with a first supporting block (16), a first supporting block (16) is fixedly connected with the top end of the first supporting block (16), and a first supporting block (17) is fixedly connected with a first supporting block (17) is arranged at the top end of the first supporting block (16), the front end of the second supporting block (18) is fixedly connected with a second adjusting sheet (19), the front end of the second supporting block (18) is rotatably connected with a positioning block (20), the top end of the second supporting block (18) is rotatably connected with a threaded rod (21), and the outer thread of the threaded rod (21) is connected with a threaded sleeve (22).

2. The helmet pointing vision test device according to claim 1, wherein: the outer parts of the two calibration rods (4) are connected with the inner part of the limiting groove (6) in a sliding mode.

3. The helmet fixed point vision test device of claim 1, wherein: the rear end of the dial (10) is attached to the front end of the fixing plate (9).

4. The helmet fixed point vision test device of claim 1, wherein: the rear end of the second fixing block (12) is fixedly connected with the front end of the first fixing block (11).

5. The helmet pointing vision test device according to claim 1, wherein: the inner part of the second supporting block (18) is connected with the outer part of the positioning rod (14) in a sliding way.

6. The helmet fixed point vision test device of claim 1, wherein: the outer part of the positioning block (20) is in threaded connection with the inner part of the positioning hole (15).

7. The helmet pointing vision test device according to claim 1, wherein: the outer underside of the threaded rod (21) is rotatably connected to the inside of the first support block (16).

8. The helmet pointing vision test device according to claim 1, wherein: the bottom end of the threaded sleeve (22) is rotatably connected with the top end of the second supporting block (18).