CN211532903U - Adjustable connecting band for safety helmet - Google Patents
Adjustable connecting band for safety helmet Download PDFInfo
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- CN211532903U CN211532903U CN201921437775.XU CN201921437775U CN211532903U CN 211532903 U CN211532903 U CN 211532903U CN 201921437775 U CN201921437775 U CN 201921437775U CN 211532903 U CN211532903 U CN 211532903U
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Abstract
The utility model relates to a labor protection safety technical field specifically discloses an adjustable connecting band for safety helmet, detain and the fixed band of fixed connection on the cap body including adjusting, still including rotating the regulation band of connection on the fixed band, the regulation band includes left regulation band and right regulation band, left side regulation band rotates the one end of connecting at the fixed band, right side regulation band rotates the other end of connecting at the fixed band, the free end of left side regulation band and right regulation band is detained through adjusting and is connected, adjust and be equipped with the regulating block in detaining, be equipped with the gear on the regulating block, all be equipped with the rack on left side regulation band and the right regulation band, two racks set up relatively, two racks all with gear engagement. This scheme is detained through the regulation that sets up the tape spool and is taken left regulation area and right regulation area of rack, has solved among the prior art and has adjusted to detain the position and expose a very long section of freedom and bring uncomfortable problem for the workman toward human ear's removal and connecting band.
Description
Technical Field
The utility model relates to a safety technical field of labour protection specifically is an adjustable connecting band for safety helmet.
Background
The existing safety helmet comprises a helmet body, a connecting belt and an adjusting buckle, wherein the helmet body is worn on the head of a human body through the connecting belt, and the size of the connecting belt which is enclosed on the head of the human body is adjusted through the adjusting buckle (the connecting belt is enclosed to form a helmet hoop), so that the safety helmet can be worn by different human bodies conveniently; however, the prior art adjustment method is as follows: the adjusting buckle is held by one hand, the connecting band is pulled by the other hand, the adjusting buckle is fixedly connected to one end of the connecting band, the connecting band can only be tightened or loosened towards one side, for a person with a small head size, after the size of the connecting band is adjusted, the adjusting buckle is not arranged on the back of the human body, but gradually leans against the ear of the human body along with the continuous reduction of the surrounding size of the connecting band, meanwhile, a long free section is hung on the safety helmet at one end of the adjusted connecting band, and the free section can often support the human body when the head of the human body is lifted, so that the human body is uncomfortable.
In addition, in order to guarantee that the enclosure size of the adjusted connecting band does not change in the prior art, the connecting band is generally convenient to adjust in the enclosure size reduction, and when the enclosure size of the connecting band becomes large, the adjusting buckle needs to be adjusted in a complex manner, so that the enclosure size of the connecting band becomes large, and the mode can guarantee the tightening of the safety helmet hoop when a worker uses, but is not convenient for taking down the safety helmet and loosening the safety helmet hoop.
SUMMERY OF THE UTILITY MODEL
The utility model provides an adjustable connecting band for safety helmet to the regulation of solving among the prior art safety helmet is detained the position and is exposed one section very long free section toward human ear and bring uncomfortable problem for the workman.
In order to achieve the above object, the basic scheme of the present invention is as follows:
the utility model provides an adjustable connecting band for safety helmet, detain and the fixed band of fixed connection on the cap body including adjusting, still connect the regulation band on the fixed band including rotating, the regulation band includes left regulation band and right regulation band, left side regulation band rotates the one end of connecting at the fixed band, right side regulation band rotates the other end of connecting at the fixed band, the free end of left side regulation band and right regulation band is detained through adjusting and is connected, be equipped with the regulating block in the regulation knot, be equipped with the gear on the regulating block, all be equipped with the rack on left side regulation band and the right regulation band, two racks set up relatively, two racks all with gear engagement.
Compared with the technical principle and the beneficial effects in the prior art:
when the scheme is adopted, the left adjusting belt and the right adjusting belt are both provided with racks, the two racks are arranged oppositely, the two racks are respectively meshed with the gear on two sides of the adjusting block simultaneously, the adjusting block is rotated manually in the forward direction, so that the gear drives the two racks to move oppositely, namely the left adjusting belt and the right adjusting belt move oppositely, the size of the whole connecting belt enclosure is reduced, and the hat hoop formed by the connecting belt enclosure is tightened; and when needs make the cap hoop relax and close the size grow promptly enclosing of connecting band, the manual work makes regulating block antiport, and the gear drives the rack and leaves the removal mutually, and left side regulation area and right regulation area keep away from each other for the connecting band encloses and closes the size grow, also the cap hoop can relax.
This scheme just can make left regulation band and right regulation band realize being close to simultaneously or keeping away from through setting up left regulation band and the right regulation band of taking the rack that the regulation of taking the gear is detained, compares in prior art, can keep all the time that the safety helmet wears the head after, adjusts the position of detaining the back head spoon of being located human head, and can not appear adjusting the condition of detaining being close to human ear among the prior art at the adjustment cap hoop in-process, therefore the travelling comfort is higher.
The left regulating band and the right regulating band of this scheme can realize being close to or keeping away from simultaneously under the drive of regulating block, compare in prior art the connecting band toward tightening up on one side and the condition of a very long section of freedom appears, the left regulating band and the right regulating band of the connecting band of this scheme remove simultaneously, left regulating band and right regulating band mesh all the time on the gear, therefore the condition that the connecting band stretches out a very long section of freedom can not appear, the uncomfortable sense that produces because of the connecting band exposes the freedom when having avoided the workman to take the safety helmet to face upward.
Further, left side regulation band and right regulation band all include rotation section and regulation section, rotate the section and intersect with the regulation section, rotate the section and rotate with the fixed band and be connected, and the rack setting is on adjusting the section.
Has the advantages that: when the connecting band was used, the fixed band of connecting band was fixed in the cap shell of safety helmet, through setting up crossing rotation section and regulation section for the fixed band can be kept away from to the regulation section, and then makes the regulation of connecting on the regulation section detain and can stretch out the cap shell, is convenient for to the regulation of cap hoop elasticity degree.
Furthermore, the adjusting buckle also comprises a bottom shell and a top shell, the bottom shell and the top shell are detachably connected, and a gap is formed between the bottom shell and the top shell; be equipped with the connecting axle on the drain pan, the gear revolve of regulating block connects on the connecting axle, and left regulation band and right regulation band all are equipped with the bar hole, and the rack setting is on the lateral wall in bar hole, and left regulation band and right regulation band all stretch into in the clearance between drain pan and the top shell, and left regulation band and right regulation band all pass through the bar hole cover on the gear.
Has the advantages that: the left adjusting belt and the right adjusting belt are overlapped and sleeved on the gear of the adjusting block, so that when the gear rotates on the connecting shaft, the left adjusting belt and the right adjusting belt can be driven to synchronously move through the rack; and left regulation band and right regulation band are located the clearance between drain pan and the top shell, and this clearance forms the guide rail that left regulation band and right regulation band removed, and drain pan and top shell form the guide effect to left regulation band and right regulation band, guarantee the smooth removal of left regulation band and right regulation band.
Furthermore, the two end parts of the fixing band are respectively provided with a clamping groove, the left adjusting band and the right adjusting band are respectively provided with a convex column, and the convex columns can be rotatably connected in the clamping grooves; the clamping groove and the convex column are arranged, the structure is simple, the cost is low, and the left adjusting belt and the right adjusting belt can be connected with the fixing belt in a rotating mode.
Furthermore, the fixing belt is provided with air holes; because the fixing band is fixed on the helmet shell of the safety helmet and is also attached to the head of the human body, the contact area between the fixing band and the head of the human body can be reduced due to the air holes, and the heat of the head of the human body can be dissipated through the air holes.
Furthermore, be equipped with the connecting seat on the top shell, the connecting seat is equipped with the interior latch of circumference equipartition, and the regulating block still includes the elastic block, is equipped with the jack catch that offsets with interior latch on the elastic block.
Has the advantages that: after the size of the enclosure of the connecting band is adjusted, the clamping jaw on the elastic block is abutted against the inner clamping tooth, so that the clamping tooth is clamped by the inner clamping tooth, and the size formed by the enclosure of the connecting band cannot be changed easily; and when needs make enclosing of connecting band close the size grow, the manual work makes the elastomer take place deformation for the jack catch breaks away from with the counterbalance of interior latch, makes the manual work can make regulating block antiport, and then drives keeping away from each other of left regulation area and right regulation area, reaches the connecting band and encloses the mesh that closes the size and transfer big.
Furthermore, the elastic block comprises a fixed section and a cantilever section, the fixed section is fixedly connected with the adjusting block, and the clamping jaw is positioned at the free end part of the cantilever section.
Has the advantages that: the jaws are located at the free end of the cantilevered section so that the force required to be applied when the jaws of the resilient block are deformed is relatively small.
Furthermore, adjust and detain still including the regulation lid that is located the top shell top, adjust to cover and be equipped with the spliced pole, be equipped with the jack on the jack catch of elastic block, be equipped with in the jack with the radial parallel first plane of gear and with the radial nonparallel second plane of gear, the spliced pole can offset with first plane, the spliced pole can offset with the second plane.
Has the advantages that: when the adjusting cover drives the adjusting block to rotate positively, the connecting column on the adjusting cover is abutted against the first plane, and the first plane is parallel to the radial direction of the gear, so that the force exerted on the first plane by the connecting column is perpendicular to the first plane, the direction of the force is the circumferential direction, and the elastic block is driven to rotate by the force in the circumferential direction.
When the adjusting cover drives the adjusting block to rotate reversely, the connecting column is abutted against the second plane, and the second plane is not parallel to the radial direction of the gear, so that when the adjusting cover drives the connecting column to rotate reversely, the force exerted on the second plane by the connecting column is not perpendicular to the second plane, the force which is not perpendicular can be divided into a radial component force and a circumferential component force, the radial component force forces the clamping jaw of the elastic block to deform towards the central axis of the gear, the clamping jaw is further separated from the limitation of the inner clamping teeth, and the elastic block is convenient to rotate under the driving of the circumferential component force.
The forward rotation and the reverse rotation of the adjusting cover can be operated by only one hand, and compared with the prior art, the operation is simpler.
Furthermore, the connecting shaft is hollow, the adjusting buckle further comprises a baffle plate, a fixing column is arranged on the baffle plate and is located in the hollow position of the connecting shaft, and the fixing column is detachably connected with the connecting shaft; the adjusting cover is rotatably connected to the fixing column, and the adjusting cover, the top cover and the adjusting block are located between the baffle and the bottom shell.
Has the advantages that: the adjusting cover and the adjusting block are limited between the baffle and the bottom shell through the baffle, the axial direction of the adjusting cover and the adjusting block is limited, and the situation that gears on the adjusting block are separated from the rack in a meshing mode due to the fact that the gears move axially is avoided.
Furthermore, the bottom shell is connected with a protective belt in a suspended mode, and two ends of the protective belt are detachably connected to two ends of the bottom shell.
Has the advantages that: the protective belt is close to the head of the human body, so that discomfort caused by the fact that the bottom shell directly contacts the head can be avoided.
Drawings
Fig. 1 is a front view of a first embodiment of the present invention;
fig. 2 is a schematic view of a forward expansion structure of a fixing band and an adjusting band in a first embodiment of the present invention;
fig. 3 is a partial bottom view of the first embodiment of the present invention shown in fig. 1;
fig. 4 is a sectional view taken along the line a-a of fig. 3 according to a first embodiment of the present invention;
fig. 5 is an isometric view of an adjusting block in a first embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the protective belt comprises a protective belt 1, a bottom shell 2, an adjusting block 3, a top shell 5, an adjusting cover 4, a baffle 6, inner clamping teeth 7, a connecting shaft 8, a gear 9, a clamping claw 10, a rack 11, a first plane 12, a second plane 13, a connecting column 14, a fixing column 15, a fixing belt 16, a left adjusting belt 17, a right adjusting belt 18 and an adjusting buckle 19.
Example one
An embodiment substantially as described herein with reference to figures 1 to 5 of the accompanying drawings:
referring to fig. 1 to 3, an adjustable connecting band for safety helmets includes a fixing band 16, an adjusting band and an adjusting buckle 19, wherein the adjusting band includes a left adjusting band 17 and a right adjusting band 18; the left end and the right end of the fixing band 16 are both provided with a clamping groove, and convex columns are integrally formed on the left adjusting band 17 and the right adjusting band 18 and can be hinged in the clamping grooves; the free end of the left adjusting belt 17 and the free end of the right adjusting belt 18 extend into the adjusting buckle 19, and the left adjusting belt 17 and the right adjusting belt 18 are connected through the adjusting buckle 19; the fixing band 16 is integrally formed with air holes.
Referring to fig. 2, the left adjusting belt 17 and the right adjusting belt 18 are integrally formed with a rotating section and an adjusting section, the rotating section intersects with the adjusting section, and the convex column is integrally formed on the rotating section; the homogeneous body shaping has a bar hole on the regulation section of left side regulation band 17 and right side regulation band 18, and the homogeneous body shaping has a rack 11 on a lateral wall in bar hole (the rack 11 of left side regulation band 17 is at the upside in bar hole, the rack 11 of right side regulation band 18 is at the downside in bar hole).
With reference to fig. 1, 3 and 4, the adjusting buckle 19 includes a protecting belt 1, a bottom case 2, an adjusting block 3, an adjusting cover 4, a top case 5 and a baffle 6; the protection belt 1 is arc-shaped, the left end and the right end of the protection belt 1 are connected with the left end and the right end of the bottom shell 2 in a buckling mode, and the protection belt 1 is connected to the bottom shell 2 in a hanging mode; the bottom shell 2 is connected with the top shell 5 in a buckling mode, a gap which is convenient for a left adjusting belt 17 and a right adjusting belt 17 to penetrate is formed between the bottom shell 2 and the top shell 5, the top shell 5 is provided with a connecting seat protruding out of the upper portion of the top shell 5 in an integrated mode, the connecting seat and the bottom shell 2 form an installation space of the adjusting block 3, and the connecting seat is provided with inner clamping teeth 7 which are uniformly distributed in the circumferential direction in an integrated mode.
Integrated into one piece has hollow and vertical connecting axle 8 that sets up on drain pan 2, and regulating block 3 overlaps on connecting axle 8, and integrated into one piece has gear 9 and elastic block on the regulating block 3, and gear 9 is located the elastic block below, and the elastic block includes fixed section and cantilever section, fixed section and 3 integrated into one piece of regulating block, and the free tip integrated into one piece of cantilever section has jack catch 10, and jack catch 10 offsets with interior jack catch 7.
Referring to fig. 3 and 4, the adjusting sections of the left adjusting belt 17 and the right adjusting belt 18 extend into the gap between the bottom shell 2 and the top shell 5, the left adjusting belt 17 and the right adjusting belt 18 are sleeved on the gear 9 through strip-shaped holes, the racks 11 of the left adjusting belt 17 and the right adjusting belt 18 are distributed on two sides of the adjusting block 3, and the two racks 11 are respectively meshed with the gear 9 on the upper side and the lower side of the gear 9.
With reference to fig. 4 and 5, the jaws 10 of the elastic block are provided with triangular shaped receptacles having a first plane 12 radially parallel to the toothed wheel 9 and a second plane 13 radially non-parallel to the toothed wheel 9.
With reference to fig. 3 to 5, a connecting column 14 is integrally formed on the adjusting cover 4, the connecting column 14 is inserted into the jack, the connecting column 14 abuts against the first plane 12 when the adjusting cover 4 rotates clockwise, and the connecting column 14 abuts against the second plane 13 when the adjusting cover 4 rotates counterclockwise; the adjusting cover 4 is disc-shaped, the adjusting cover 4 covers the connecting seat of the top shell 5, and five bosses (visible in figure 1) are integrally formed on the periphery of the disc of the adjusting cover 4.
Referring to fig. 3, a fixing post 15 is integrally formed on the baffle 6, the fixing post 15 is inserted into a hollow position of the connecting shaft 8, and the fixing post 15 is connected with the connecting shaft 8 through a buckle; the adjusting cover 4 is sleeved on the fixing column 15.
The specific implementation process is as follows:
tightening a cap hoop of the safety cap: need close the size to the connecting band promptly and adjust for miniaturation, clockwise rotation is adjusted and is covered 4, and the spliced pole 14 on adjusting lid 4 offsets with first plane 12 for first plane 12 only receives circumference power, drives regulating block 3 through this circumference power and clockwise rotates, through the meshing of gear 9 and rack 11, and then drives the regulation section of left regulation area 17 and the regulation section of right regulation area 18 and remove in opposite directions, makes the size that closes of connecting band diminish, and the cap hoop can tighten up.
When the adjusting cover 4 is not rotated, the jaw 10 loses the acting force of the connecting column 14 and pushes against the inner jaw 7 under the self structure, so that the size formed by enclosing the connecting belt cannot be changed, and the requirement that a worker tightly wears the helmet on the head is met.
Loosening the cap hoop of the safety cap: namely, the surrounding size of the connecting band needs to be increased, the adjusting cover 4 is rotated counterclockwise, the connecting column 14 on the adjusting cover 4 is abutted against the second plane 13, and because the second plane 13 is not parallel to the gear 9 in the radial direction, the force applied to the second plane 13 is not perpendicular to the second plane 13, the non-perpendicular force can be divided into a radial component force and a circumferential component force along the gear 9, the radial component force forces the claw 10 of the elastic block to deform towards the central axis of the gear 9, so that the claw 10 is separated from the limitation of the inner latch 7, the adjusting block 3 is convenient to rotate counterclockwise under the driving of the circumferential component force, and further the adjusting section of the left adjusting band 17 and the adjusting section of the right adjusting band 18 are driven to move away from each other, so that the surrounding size of the connecting band is increased, and the hat band is.
Above operation only needs clockwise or anticlockwise rotation of a hand to adjust lid 4, can realize that the connecting band encloses the change that closes the size, reach the purpose that the cap hoop tightens up or relaxs, moreover, the operation is simple, and this embodiment can realize being close to or keeping away from when left regulation band 17 and right regulation band 18, and then can be after the safety helmet is worn the head, guarantee all the time that adjust knot 19 is located the position of human head back head spoon and can not take place to remove, and left regulation band 17 and right regulation band 18 are located the clearance between drain pan 2 and top shell 5, therefore the condition that connecting band one end freely scatters on the safety helmet can not appear, also guarantee the smooth removal of left regulation band 17 and right regulation band 18, the simplicity of adjusting the cap hoop and the comfort level that the human body wore the safety helmet have been improved.
Example two
The second embodiment is improved on the basis of the first embodiment, and the improvement is as follows:
four connecting bulges are integrally formed on the fixing band 16, each connecting bulge is sleeved with a top band, the free end of each top band is connected with a hat lining, and a spring is connected between the hat lining and the hat shell.
The specific implementation process is as follows:
once a safety accident occurs, after the helmet shell is punctured by the falling object, the spring protects the head of the human body, the falling object is prevented from directly injuring the head of the human body after the helmet shell is punctured, and the protection effect on the head of the human body is achieved.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The utility model provides an adjustable connecting band for safety helmet, detains and the fixed band of fixed connection on the cap body including adjusting, its characterized in that: still including rotating the regulation band of connection on the fixed band, the regulation band includes left regulation band and right regulation band, and left regulation band rotates the one end of connection at the fixed band, and right regulation band rotates the other end of connection at the fixed band, and the free end of left regulation band and right regulation band is detained through adjusting and is connected, adjusts to detain and is equipped with the regulating block in, is equipped with the gear on the regulating block, all is equipped with the rack on left regulation band and the right regulation band, and two racks set up relatively, and two racks all with gear engagement.
2. The adjustable connecting band for safety helmets according to claim 1, wherein: the left adjusting belt and the right adjusting belt respectively comprise a rotating section and an adjusting section, the rotating section is intersected with the adjusting section, the rotating section is rotatably connected with the fixing belt, and the rack is arranged on the adjusting section.
3. The adjustable connecting band for safety helmets according to claim 2, wherein: the adjusting buckle further comprises a bottom shell and a top shell, the bottom shell is detachably connected with the top shell, and a gap is formed between the bottom shell and the top shell; be equipped with the connecting axle on the drain pan, the gear revolve of regulating block connects on the connecting axle, and left regulation band and right regulation band all are equipped with the bar hole, and the rack setting is on the lateral wall in bar hole, and left regulation band and right regulation band all stretch into in the clearance between drain pan and the top shell, and left regulation band and right regulation band all pass through the bar hole cover on the gear.
4. The adjustable connecting band for safety helmets according to claim 3, wherein: the both ends of fixed band all are equipped with the draw-in groove, all are equipped with the projection on left adjustment band and the right adjustment band, and the projection can rotate to be connected in the draw-in groove.
5. The adjustable connecting band for safety helmets according to claim 4, wherein: the fixing band is provided with air holes.
6. The adjustable connecting band for safety helmets according to claim 3, wherein: the top shell is provided with a connecting seat, the connecting seat is provided with inner clamping teeth which are circumferentially and uniformly distributed, the adjusting block further comprises an elastic block, and the elastic block is provided with clamping claws which are abutted to the inner clamping teeth.
7. The adjustable connecting band for safety helmets according to claim 6, wherein: the elastic block comprises a fixed section and a cantilever section, the fixed section is fixedly connected with the adjusting block, and the clamping jaw is positioned at the free end part of the cantilever section.
8. The adjustable connecting band for safety helmets according to claim 7, wherein: the adjusting buckle further comprises an adjusting cover located above the top shell, a connecting column is arranged on the adjusting cover, a jack is arranged on a clamping jaw of the elastic block, a first plane which is radially parallel to the gear and a second plane which is radially not parallel to the gear are arranged in the jack, the connecting column can be abutted against the first plane, and the connecting column can be abutted against the second plane.
9. The adjustable connecting band for safety helmets according to claim 8, wherein: the adjusting buckle is characterized in that the connecting shaft is hollow, the adjusting buckle further comprises a baffle, a fixing column is arranged on the baffle and is located in the hollow position of the connecting shaft, and the fixing column is detachably connected with the connecting shaft; the adjusting cover is rotatably connected to the fixing column, and the adjusting cover, the top cover and the adjusting block are located between the baffle and the bottom shell.
10. The adjustable connecting band for safety helmets according to claim 3, wherein: and a protective belt is connected to the bottom shell in a suspended manner, and two ends of the protective belt are detachably connected to two ends of the bottom shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921437775.XU CN211532903U (en) | 2019-08-30 | 2019-08-30 | Adjustable connecting band for safety helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921437775.XU CN211532903U (en) | 2019-08-30 | 2019-08-30 | Adjustable connecting band for safety helmet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211532903U true CN211532903U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921437775.XU Active CN211532903U (en) | 2019-08-30 | 2019-08-30 | Adjustable connecting band for safety helmet |
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| Country | Link |
|---|---|
| CN (1) | CN211532903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393338A (en) * | 2019-08-30 | 2019-11-01 | 重庆永安安防科技有限公司 | A kind of adjustable connecting band used for safety helmet |
-
2019
- 2019-08-30 CN CN201921437775.XU patent/CN211532903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393338A (en) * | 2019-08-30 | 2019-11-01 | 重庆永安安防科技有限公司 | A kind of adjustable connecting band used for safety helmet |
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