CN220832139U - Elastic buckle with needle roller structure and head-wearing appliance thereof - Google Patents
Elastic buckle with needle roller structure and head-wearing appliance thereof Download PDFInfo
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- CN220832139U CN220832139U CN202322844508.7U CN202322844508U CN220832139U CN 220832139 U CN220832139 U CN 220832139U CN 202322844508 U CN202322844508 U CN 202322844508U CN 220832139 U CN220832139 U CN 220832139U
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- needle roller
- strip
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- shaped belt
- inserting slit
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- 238000005096 rolling process Methods 0.000 claims abstract description 32
- 238000005381 potential energy Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 20
- 230000000694 effects Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002040 relaxant effect Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model discloses an elastic buckle with a needle roller structure and a head-mounted instrument thereof, which comprise a main body block, wherein the main body block is provided with a hollow cavity, the inner wall of the hollow cavity is provided with a pair of mirror-image arranged slope surfaces, and the farthest and nearest slope surfaces respectively form a wide opening and a narrow bottom; a strip-shaped belt passing through the hollow cavity of the main body block; the rolling pins are arranged at two sides of the strip-shaped belt, the axes of the rolling pins are perpendicular to the extending direction of the strip-shaped belt, the rolling pins have unidirectional elastic potential energy towards the narrow bottom, and the rolling pins have degrees of freedom of approaching and separating from each other; the button part is provided with a reciprocating translational degree of freedom along the extending direction of the strip-shaped belt, and pushes the needle roller to overcome elastic potential energy and translate towards the wide-mouth direction. The utility model provides a novel elastic buckle form, and the strip-shaped belt is clamped by a pair of rolling pins. The stepless fine adjustment can be realized, the processing is convenient, and the tightness switching is also convenient.
Description
Technical Field
The utility model relates to the field of elastic adjusting buckles, in particular to an elastic buckle with a needle roller structure and a head-mounted device thereof.
Background
The strip-shaped belt with elasticity adjustment has wide application scenes, such as wide application in the fields of safety helmets and the like, and is mainly used for adapting to the head circumferences of different users.
The traditional elastic buckle is provided with a knob, and the tightness adjustment of the belt can be realized by twisting the knob along different directions by fingers, namely the extension and shortening of the belt are realized. The main principle is that one gear is utilized to drive two racks, and the racks can move oppositely or reversely to realize tightness.
The number of the traditional elastic buckle parts is not small, and the traditional elastic buckle parts also have a plurality of teeth, and sometimes a plurality of teeth are difficult to process and easy to wear.
Disclosure of utility model
The utility model aims to solve the problem of providing a tightening buckle with a roller pin structure and a head-mounted device thereof, and provides a novel tightening buckle form, wherein a pair of roller pins are used for clamping a strip-shaped belt. The stepless fine adjustment can be realized, the processing is convenient, and the tightness switching is also convenient.
In order to solve the above problems, the utility model provides a tightening buckle with a needle roller structure and a head-mounted device thereof, and in order to achieve the above purposes, the utility model adopts the following technical scheme:
Take elasticity of kingpin structure to detain includes: the main body block is provided with a hollow cavity, the inner wall of the hollow cavity is provided with a pair of slope surfaces which are arranged in a mirror image way, and the pair of slope surfaces respectively form a wide opening and a narrow bottom at the farthest and nearest positions; a strip-shaped belt passing through the hollow cavity of the main body block; the rolling pins are arranged at two sides of the strip-shaped belt, the axes of the rolling pins are perpendicular to the extending direction of the strip-shaped belt, the rolling pins have unidirectional elastic potential energy towards the narrow bottom, and the rolling pins have degrees of freedom of approaching and separating from each other; the button part is provided with a reciprocating translational degree of freedom along the extending direction of the strip-shaped belt, and pushes the needle roller to overcome elastic potential energy and translate towards the wide-mouth direction.
The beneficial effects of adopting above-mentioned technical scheme are: the technical scheme provides a novel elastic buckle, and the main principle is that the rolling pin is driven to clamp the strip-shaped belt by utilizing the component force of the slope surface, the rolling pin is in line contact with the strip-shaped belt and the slope surface, and the two rolling pins are closer to each other along the direction of the narrow bottom, so that the clamping effect on the strip-shaped belt is better, and the fixing effect is achieved. The tightness is adjusted by slightly pressing the button part, so that the action is simpler, and the adjustment mode is stepless adjustment.
Because of the unidirectional elastic potential energy, the clamping force is relatively stable. In addition, the rolling pin and the strip belt which are the main structures are parts with simple shapes and planes, and the design of convex teeth is omitted, so that the processing difficulty is also simple from certain angles, and the service life is prolonged.
Slightly pressing the button part overcomes the elasticity, so that the two rolling needles have a space far away from each other, and the effect of releasing and relaxing can be immediately achieved.
The component force effect of the slope surface can apply the opposite extrusion force to the roller pin, the extrusion force is just applied to the front and back surfaces of the strip-shaped belt, and even if no convex teeth exist, the strip-shaped belt has good clamping effect.
As a further improvement of the utility model, the outer wall of the main body block is recessed with two symmetrical slots, the slots enable two ends of the hollow cavity to be communicated, and the button part comprises a U-shaped piece which is movably assembled with the slots through a first lug of the U-shaped piece.
The beneficial effects of adopting above-mentioned technical scheme are: the first tab may translate within the slot, which is the active form of the button portion.
As a further improvement of the utility model, the button part further comprises a sliding block, wherein the sliding block is provided with waist-shaped holes, each waist-shaped hole is internally penetrated with two rolling pins, and the length direction of the waist-shaped hole is perpendicular to the extending direction of the strip-shaped belt.
The beneficial effects of adopting above-mentioned technical scheme are: the waist-shaped holes provide limit for the needle rollers, so that the needle rollers are prevented from falling off, and meanwhile, the waist-shaped holes do not limit the freedom degrees of mutual approaching or separating between the needle rollers.
As a further improvement of the utility model, the sliding block is connected with a pressure spring, the pressure spring provides unidirectional elastic potential energy for the needle roller, and the pressure spring is positioned in the slot.
The beneficial effects of adopting above-mentioned technical scheme are: the spring force existing in real time is provided by the pressure spring, and the slot just provides a layout position for the pressure spring.
As a further improvement of the utility model, one end of the slot is provided with a blind hole, and one end of the blind hole is used for embedding the compression spring.
The beneficial effects of adopting above-mentioned technical scheme are: the blind hole can avoid the release of the end of the pressure spring.
As a further improvement of the present utility model, the slider is provided with a projection inserted into one end of the compression spring.
The beneficial effects of adopting above-mentioned technical scheme are: the convex part is provided to avoid the release of the pressure spring and the sliding block, thereby ensuring the good assembly of the pressure spring and the sliding block.
As a further improvement of the utility model, the U-shaped piece comprises an arc piece, two ends of the arc piece are provided with straight plates which integrally extend in the same direction, and the first lug is positioned on the opposite surfaces of the two straight plates; the opposite surfaces of the straight plate are also provided with second convex blocks, the second convex blocks are sunken to form notch grooves, the notch grooves are communicated with the top surfaces and the side vertical surfaces of the second convex blocks, and the notch grooves are used for accommodating the ends of the rolling pins.
The beneficial effects of adopting above-mentioned technical scheme are: the notch groove ensures the assembly and the non-loosening of the U-shaped piece, and meanwhile, the design of the notch groove is also in order to facilitate the consideration of the initial product assembly, compared with a waist-shaped hole, the U-shaped piece can realize the assembly through overturning and translation.
As a further improvement of the utility model, the length of the waist-shaped hole is more than twice the diameter of the needle roller; along the projection of the through direction of the waist-shaped hole, the outline of the notch is overlapped on the outline of the waist-shaped hole.
The beneficial effects of adopting above-mentioned technical scheme are: the needle roller has a degree of freedom of rotation, and actually has two translational degrees of freedom in mutually perpendicular directions, except that the two translational degrees of freedom are assisted by different parts.
As a further improvement of the utility model, the main body block is provided with a first inserting slit and a second inserting slit, the sliding block is provided with a third inserting slit, the circular arc piece is provided with a fourth inserting slit, the lengths and the widths of the first inserting slit, the second inserting slit, the third inserting slit and the fourth inserting slit are equal, and the strip-shaped belt sequentially passes through the first inserting slit, the second inserting slit, the third inserting slit and the fourth inserting slit.
The beneficial effects of adopting above-mentioned technical scheme are: the strip-shaped belt passes through the center of each part, so that the needle roller can not be far away from the strip-shaped belt, and the whole stress is symmetrical.
A headgear comprising a bungee buckle with a needle roller arrangement as claimed in any one of the preceding claims.
The beneficial effects of adopting above-mentioned technical scheme are: the elastic buckle can be used in various fields, such as safety helmets, outdoor sports equipment fields and medical equipment fields. In the operation, the medical head-mounted instrument of simpler operation can reduce doctor intensity of labour, promotes the comfort level of wearing, lets the doctor get on hand more soon.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a perspective view of an embodiment of the present utility model;
FIG. 2 is a top view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view A-A of an embodiment of the present utility model;
FIG. 4 is a top view of a body block of an embodiment of the present utility model;
FIG. 5 is a B-B cross-sectional view of an embodiment of the present utility model;
FIG. 6 is an exploded view of an embodiment of the present utility model;
FIG. 7 is an exploded view of an embodiment of the present utility model;
fig. 8 is a schematic application diagram of an embodiment of the present utility model.
1-A strip belt; 2-a body block; 2 a-a first insertion slit; 2 b-a second insertion slit; 2 c-slots; 2 d-blind holes; 2 e-hollow cavity; 2 f-slope surface; 2 g-wide mouth; 2 h-narrow bottom; 3-a compression spring; 4-rolling needles; 5-a slider; 5 a-a third insertion slot; 5 b-a waist-shaped hole; 5 c-a projection; a 6-U-shaped member; 6 a-fourth insertion slot; 6 b-a notch groove; 6 c-a first bump; 6 d-a second bump; 6 e-arc pieces; 6 f-straight plate; 7-head lamp; 8-glasses.
Detailed Description
The following describes the present utility model in further detail with reference to specific examples:
In order to achieve the object of the present utility model, a buckle with a needle roller structure comprises: the main body block 2 is provided with a hollow cavity 2e, the inner wall of the hollow cavity 2e is provided with a pair of slope surfaces 2f which are arranged in a mirror image manner, and as shown in fig. 5, the pair of slope surfaces 2f respectively form a wide opening 2g and a narrow bottom 2h at the farthest and nearest positions; a strip-shaped belt 1 passing through the hollow cavity 2e of the main body block 2; the rolling pins 4 are arranged at two sides of the strip-shaped belt 1, the axes of the rolling pins 4 are perpendicular to the extending direction of the strip-shaped belt 1, the rolling pins 4 have unidirectional elastic potential energy towards the narrow bottom 2h, and the rolling pins 4 have the freedom degrees of approaching and separating from each other; the button part is provided with a reciprocating translational degree of freedom along the extending direction of the strip-shaped belt 1, and pushes the needle roller 4 to overcome elastic potential energy and translate towards the wide opening 2 g.
The beneficial effects of adopting above-mentioned technical scheme are: the technical scheme provides a novel elastic buckle, and the main principle is that the rolling pin is driven to clamp the strip-shaped belt by utilizing the component force of the slope surface, the rolling pin is in line contact with the strip-shaped belt and the slope surface, and the two rolling pins are closer to each other along the direction of the narrow bottom, so that the clamping effect on the strip-shaped belt is better, and the fixing effect is achieved. The tightness is adjusted by slightly pressing the button part, so that the action is simpler, and the adjustment mode is stepless adjustment. Because of the unidirectional elastic potential energy, the clamping force is relatively stable. In addition, the rolling pin and the strip belt which are the main structures are parts with simple shapes and planes, and the design of convex teeth is omitted, so that the processing difficulty is also simple from certain angles, and the service life is prolonged. Slightly pressing the button part overcomes the elasticity, so that the two rolling needles have a space far away from each other, and the effect of releasing and relaxing can be immediately achieved. The component force effect of the slope surface can apply the opposite extrusion force to the roller pin, the extrusion force is just applied to the front and back surfaces of the strip-shaped belt, and even if no convex teeth exist, the strip-shaped belt has good clamping effect.
In other embodiments of the present utility model, the outer wall of the main body block 2 is recessed with two symmetrical slots 2c, the slots 2c penetrate through two ends of the hollow cavity 2e, and the button part includes a U-shaped member 6, as shown in fig. 1, and the U-shaped member 6 is movably assembled with the slots 2c through a first bump 6c thereof.
The beneficial effects of adopting above-mentioned technical scheme are: the first tab may translate within the slot, which is the active form of the button portion.
In other embodiments of the present utility model, the button part further includes a slider 5, the slider 5 has waist-shaped holes 5b, two needle rollers 4 are inserted into each waist-shaped hole 5b, and the length direction of the waist-shaped hole 5b is perpendicular to the extending direction of the strip-shaped belt 1.
The beneficial effects of adopting above-mentioned technical scheme are: the waist-shaped holes provide limit for the needle rollers, so that the needle rollers are prevented from falling off, and meanwhile, the waist-shaped holes do not limit the freedom degrees of mutual approaching or separating between the needle rollers.
In other embodiments of the present utility model, the slider 5 is connected to a compression spring 3, where the compression spring 3 provides unidirectional elastic potential energy for the needle roller 4, and the compression spring 3 is located in the slot 2 c.
The beneficial effects of adopting above-mentioned technical scheme are: the spring force existing in real time is provided by the pressure spring, and the slot just provides a layout position for the pressure spring.
In other embodiments of the present utility model, as shown in fig. 7, one end of the slot 2c is provided with a blind hole 2d, and the blind hole 2d is embedded in one end of the compression spring 3.
The beneficial effects of adopting above-mentioned technical scheme are: the blind hole can avoid the release of the end of the pressure spring.
As shown in fig. 6 and 7, in other embodiments of the present utility model, the slider 5 is provided with a protrusion 5c, and the protrusion 5c is inserted into one end of the compression spring 3.
The beneficial effects of adopting above-mentioned technical scheme are: the convex part is provided to avoid the release of the pressure spring and the sliding block, thereby ensuring the good assembly of the pressure spring and the sliding block.
In other embodiments of the present utility model, the U-shaped member 6 includes an arc piece 6e, wherein two ends of the arc piece 6e are provided with straight plates 6f extending in the same direction integrally, and the first protruding block 6c is located on the opposite surfaces of the two straight plates 6 f; the opposite surface of the straight sheet 6f is also provided with a second lug 6d, the second lug 6d is sunken with a notch groove 6b, the notch groove 6b is communicated with the top surface and the side elevation of the second lug 6d, and the notch groove 6b is used for accommodating the end head of the needle roller 4.
The beneficial effects of adopting above-mentioned technical scheme are: the notch groove ensures the assembly and the non-loosening of the U-shaped piece, and meanwhile, the design of the notch groove is also in order to facilitate the consideration of the initial product assembly, compared with a waist-shaped hole, the U-shaped piece can realize the assembly through overturning and translation.
In other embodiments of the utility model, the length of the waist-shaped hole 5b is greater than twice the diameter of the needle roller 4; the contour of the notch groove 6b is superimposed on the contour of the waist-shaped hole 5b along the projection of the waist-shaped hole 5b in the penetrating direction.
The beneficial effects of adopting above-mentioned technical scheme are: the needle roller has a degree of freedom of rotation, and actually has two translational degrees of freedom in mutually perpendicular directions, except that the two translational degrees of freedom are assisted by different parts.
In other embodiments of the present utility model, the main body block 2 is provided with the first slit 2a and the second slit 2b, the slider 5 is provided with the third slit 5a, the circular arc piece 6e is provided with the fourth slit 6a, and the lengths and widths of the first slit 2a, the second slit 2b, the third slit 5a, and the fourth slit 6a are equal, so that the strip 1 sequentially passes through the first slit 2a, the second slit 2b, the third slit 5a, and the fourth slit 6a.
The beneficial effects of adopting above-mentioned technical scheme are: the strip-shaped belt passes through the center of each part, so that the needle roller can not be far away from the strip-shaped belt, and the whole stress is symmetrical.
A headgear comprising a bungee buckle with a needle roller arrangement as claimed in any one of the preceding claims.
The beneficial effects of adopting above-mentioned technical scheme are: the elastic buckle can be used in various fields, such as safety helmets, outdoor sports equipment fields and medical equipment fields. In the operation, the medical head-mounted instrument of simpler operation can reduce doctor intensity of labour, promotes the comfort level of wearing, lets the doctor get on hand more soon.
The outer wall of the needle roller 4 is cylindrical, and the needle roller 4 is made of metal.
As shown in fig. 8, the head-wearing device comprises a strip-shaped belt 1 which is enclosed into a ring shape, and a head lamp 7 and glasses 8 are also fixed on the strip-shaped belt 1.
The distance from the narrow bottom 2h to the circular arc piece 6e is smaller than the distance from the wide opening 2g to the circular arc piece 6e, and when the adjustment needs to be relaxed, the finger of a person presses the circular arc piece 6e.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. Take elasticity of kingpin structure to detain, its characterized in that includes:
The main body block is provided with a hollow cavity, the inner wall of the hollow cavity is provided with a pair of slope surfaces which are arranged in a mirror image way, and the pair of slope surfaces respectively form a wide opening and a narrow bottom at the farthest and nearest positions;
A strip-shaped belt passing through the hollow cavity of the main body block;
The rolling pins are arranged at two sides of the strip-shaped belt, the axes of the rolling pins are perpendicular to the extending direction of the strip-shaped belt, the rolling pins have unidirectional elastic potential energy facing the narrow bottom, and the rolling pins have freedom degrees of approaching and separating from each other;
The button part is provided with a reciprocating translational degree of freedom along the extending direction of the strip-shaped belt, and pushes the needle roller to overcome elastic potential energy and translate towards the wide-mouth direction.
2. The elastic clasp with needle roller structure according to claim 1, wherein: the outer wall of the main body block is sunken to have two symmetrical slots, the slots enable two ends of the hollow cavity to be communicated, the button part comprises a U-shaped piece, and the U-shaped piece is movably assembled with the slots through a first lug of the button part.
3. The elastic clasp with needle roller structure according to claim 2, wherein: the button part further comprises a sliding block, the sliding block is provided with waist-shaped holes, two rolling pins are penetrated in each waist-shaped hole, and the length direction of each waist-shaped hole is perpendicular to the extending direction of the strip-shaped belt.
4. The elastic clasp with needle roller structure according to claim 3, wherein: the sliding block is connected with a pressure spring, the pressure spring provides unidirectional elastic potential energy for the needle roller, and the pressure spring is positioned in the slot.
5. The elastic clasp with needle roller structure according to claim 4, wherein: one end of the slot is provided with a blind hole, and one end of the blind hole is used for embedding the compression spring.
6. The elastic clasp with needle roller structure according to claim 4, wherein: the slider is provided with a protruding portion, and the protruding portion is inserted into one end of the compression spring.
7. The elastic clasp with needle roller structure according to claim 3, wherein: the U-shaped piece comprises an arc piece, two ends of the arc piece are provided with straight plates which integrally extend in the same direction, and the first protruding block is positioned on the opposite surfaces of the two straight plates; the straight slab is characterized in that the opposite surfaces of the straight slab are also provided with second convex blocks, the second convex blocks are sunken to form notch grooves, the notch grooves are communicated with the top surfaces and the side elevation of the second convex blocks, and the notch grooves are used for accommodating the ends of the rolling pins.
8. The elastic clasp with needle roller structure of claim 7, further comprising: the length of the waist-shaped hole is more than twice the diameter of the needle roller; and the outline of the notch groove is overlapped on the outline of the waist-shaped hole along the projection of the penetrating direction of the waist-shaped hole.
9. The elastic clasp with needle roller structure of claim 7, further comprising: the main body block is provided with a first inserting slit and a second inserting slit, the sliding block is provided with a third inserting slit, the circular arc piece is provided with a fourth inserting slit, the lengths and the widths of the first inserting slit, the second inserting slit, the third inserting slit and the fourth inserting slit are equal, and the strip-shaped belt sequentially penetrates through the first inserting slit, the second inserting slit, the third inserting slit and the fourth inserting slit.
10. Wear apparatus, its characterized in that: a cam buckle comprising a needle roller arrangement according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322844508.7U CN220832139U (en) | 2023-10-23 | 2023-10-23 | Elastic buckle with needle roller structure and head-wearing appliance thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322844508.7U CN220832139U (en) | 2023-10-23 | 2023-10-23 | Elastic buckle with needle roller structure and head-wearing appliance thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220832139U true CN220832139U (en) | 2024-04-26 |
Family
ID=90739165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322844508.7U Active CN220832139U (en) | 2023-10-23 | 2023-10-23 | Elastic buckle with needle roller structure and head-wearing appliance thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220832139U (en) |
-
2023
- 2023-10-23 CN CN202322844508.7U patent/CN220832139U/en active Active
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