CN213848989U - Polytetrafluoroethylene filters formula helmet - Google Patents

Abstract

The utility model provides a polytetrafluoroethylene filters formula helmet belongs to the human body and filters articles for use technical field. It has solved the loaded down with trivial details problem of filtration membrane replacement process on the current helmet. This filter type helmet, including having the helmet body that holds human head appearance chamber, the front end of the helmet body has been seted up and has been placed the mouth, the fixed symmetry in both sides of placing the mouth is equipped with the piece that links up, the inner endwall of linking up the piece is seted up jaggedly, interior caulking groove has been seted up to the downside of breach, form the echelonment between breach and the embedding groove, the filter has been dismantled in the space of linking up the piece, be equipped with filtration membrane on the filter, filtration membrane has the polytetrafluoroethylene composition, the both sides of filter are equipped with the interior abaculus that size and embedding groove match, interior abaculus can pass the breach and imbed the embedding inslot, the hole has still been seted up to the top of breach, vertical activity is equipped with the retaining member in the hole. Compared with the prior art, the filter membrane of the filtering type helmet is convenient to replace, can be detached to replace, and can also be replaced automatically.

Description

Polytetrafluoroethylene filters formula helmet

Technical Field

The utility model belongs to the technical field of human body filtering articles for use, a polytetrafluoroethylene filters formula helmet is related to.

Background

The helmet mainly aims at protecting the head of a human body, and in addition, a layer of protective cover is attached to some helmets, so that the air can be purified, but the protective cover does not need to be always positioned at the position of the mouth and the nose of a user, so that the user can be prevented from smoothly breathing, and the best mode of using the protective cover can be used according to actual conditions.

The polytetrafluoroethylene filtering film has small aperture, even distribution and large porosity, and can filter all dust particles including bacteria while keeping the air circulation.

Because the thickness of the filtering membrane is very small, sundries are bound to the front surface of the filtering membrane after long-term use, which affects the normal breathing of human body, so the filtering membrane also needs to be replaced in time in the application process, the replacing process has great inconvenience, people need to carry the filtering membrane when going out, the old filtering membrane also needs to be thrown away in time after the replacement is completed, a public garbage can is not always arranged nearby when going out, so that the waste membrane is thrown away, and a series of inconveniences are generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the replacement process of the filtering membrane on the existing helmet is complex, and provides a polytetrafluoroethylene filtering type helmet.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a polytetrafluoroethylene filters formula helmet, includes the helmet body that holds human head appearance chamber, and the front end of the helmet body has been seted up and has been placed mouth, its characterized in that: the fixed symmetry in both sides of placing the mouth is equipped with and links up the piece, the inner wall that links up the piece is seted up jaggedly, the interior abaculus has been seted up to the downside of breach, form the echelonment between breach and the interior abaculus, the filter has been placed to the space of linking up the piece can be dismantled, be equipped with filtration membrane on the filter, filtration membrane has the polytetrafluoroethylene composition, the both sides of filter are equipped with the interior abaculus that size and embedded groove match, interior abaculus can pass the breach and imbed the embedded inslot, the hole has still been seted up to the top of breach, vertical activity in the hole is equipped with the retaining member.

In the polytetrafluoroethylene filtering helmet, an outward pushing spring is arranged between the inner end of the inner hole and the locking piece.

In the above-mentioned polytetrafluoroethylene filtering type helmet, the face of the filter plate is opened with a square opening, the upper and lower four corners of the two sides of the filter plate are respectively rotatably provided with a connecting shaft body, the connecting shaft bodies in the same vertical direction are oppositely arranged and a sleeve shaft is fixedly connected between the two connecting shaft bodies, the connecting shaft bodies are fixedly provided with a first pair of connecting posts, the end surfaces of the first pair of connecting posts are fixedly provided with butt-joint blocks, the two sides of the sleeve shaft are fixedly provided with a second pair of connecting posts, the end surfaces of the second pair of connecting posts are opened with butt-joint grooves, the butt-joint blocks can be embedded into the butt-joint grooves, the sleeve shaft is used for winding the filtering membrane, the filtering membrane is pulled from the sleeve shaft at one side to the sleeve shaft at the other side, the two connecting shaft bodies at the lower side are fixedly provided with belt wheels, the bottom surface of the filter plate is also fixedly provided with a sliding rod and a baffle, the sliding rod is perpendicular to the baffle, the sliding block is provided with a sliding block in a sliding way, a driving part is fixedly arranged in the sliding block, the output shaft of the driving part is upward and is fixedly provided with a tensioning wheel, a triangle relation is formed between the two belt wheels and the tensioning wheel, the belt is sleeved on the belt, and an extrusion spring is arranged between the sliding block and the baffle plate, so that the sliding block is pushed outwards by the extrusion spring under the condition of not bearing external force, and the tensioning of the belt is realized.

In the above-mentioned filtering polytetrafluoroethylene helmet, a pushing handle is provided on the side of the slider opposite to the extrusion spring.

In the above-mentioned filtering polytetrafluoroethylene helmet, the first docking post is made of a magnetic material, and the second docking post is made of a magnetic material.

Compared with the prior art, the filter membrane of the filtering type helmet is convenient to replace, can be detached to replace, and can also be replaced automatically.

Drawings

FIG. 1 is a schematic view of the structure of a filter plate in a state where a connecting block is separated from the filter plate;

FIG. 2 is a schematic view of the structure of the various components within the filter plate;

in the figure, 1, a connecting block; 2. a notch; 3. an embedded groove is formed; 4. a filter plate; 5. an embedded block; 6. a locking member; 7. a square through opening; 8. a shaft coupling body; 9. a sleeve shaft; 10. a first docking post; 11. a butt joint block; 12. a second docking post; 13. a butt joint groove; 14. a pulley; 15. a slide bar; 16. a baffle plate; 17. a slider; 18. a tension wheel; 19. a compression spring; 20. and (6) pushing the hand.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The polytetrafluoroethylene filtering type helmet comprises a helmet body with a cavity for accommodating the head of a human body, wherein a placing opening is formed in the front end of the helmet body.

As shown in figure 1, the fixed symmetry in both sides of placing the mouth is equipped with and links up piece 1, link up the inner endwall of piece 1 and set up jagged 2, interior embedded groove 3 has been seted up to the downside of breach 2, form the echelonment between breach 2 and the embedded groove 3, the filter 4 has been placed to the space of linking up piece 1 can be dismantled, be equipped with filtration membrane on the filter 4, filtration membrane has the polytetrafluoroethylene composition, the both sides of filter 4 are equipped with the interior embedded block 5 that size and embedded groove 3 match, interior embedded block 5 can pass breach 2 and imbed in the embedded groove 3, the hole has still been seted up to the top of breach 2, the vertical activity in the hole is equipped with retaining member 6, be equipped with the extrapolation spring between hole inner and the retaining member 6.

After using the overlength time, can dismantle filter 4, change filtration membrane, the process of tearing open needs to push away retaining member 6 to the hole in, then interior abaculus 5 on filter 4 just can be taken out from breach 2, then changes the back to the filtration membrane on filter 4, and it can to put back again, so one loosen retaining member 6 itself will reset by oneself because of the existence of extrapolating the spring of this process.

As shown in fig. 1 and 2, a square through opening 7 is formed on the surface of the filter plate 4, four corners above and below two sides of the filter plate 4 are respectively provided with a connecting shaft body 8 in a rotating manner, the connecting shaft bodies 8 in the same vertical direction are arranged in an opposite manner, a sleeve shaft 9 is fixedly connected between the connecting shaft bodies 8, a first pair of connecting posts 10 are fixedly arranged on the connecting shaft body 8, butt-joint blocks 11 are fixedly arranged on the end surfaces of the first pair of connecting posts 10, second butt-joint posts 12 are fixedly arranged on two sides of the sleeve shaft 9, butt-joint grooves 13 are formed on the end surfaces of the second pair of connecting posts 12, the butt-joint blocks 11 can be embedded into the butt-joint grooves 13, the sleeve shaft 9 is used for winding the filter membrane, the filter membrane is pulled from the sleeve shaft 9 on one side to the sleeve shaft 9 on the other side, belt pulleys 14 are fixedly arranged on the two connecting shafts 8 below, a slide rod 15 and a baffle 16 are also fixedly arranged on the bottom surface of the filter plate 4, the slide rod 15 is perpendicular to the baffle 16, a slide block 17 is slidably arranged on the slide rod 15, a driving part is fixedly arranged in the sliding block 17, an output shaft of the driving part faces upwards and is fixedly provided with a tension pulley 18, a triangular relation is formed between the two belt pulleys 14 and the tension pulley 18, a belt is sleeved on the triangular relation, an extrusion spring 19 is arranged between the sliding block 17 and the baffle 16, so that the sliding block 17 is outwards pushed by the extrusion spring 19 under the condition of not bearing external force to realize the tension of the belt, a pushing handle 20 is arranged on one surface of the sliding block 17, back to the extrusion spring 19, a first butt joint column 10 is supported by a magnetic material, and a second butt joint column 12 is made of a magnetic material.

As shown in fig. 2, wherein: the left sleeve shaft 9 is used for winding a clean filtering membrane, the right sleeve shaft 9 is used for winding the used filtering membrane, the filtering membrane is pulled out from the left sleeve shaft 9 and finally wound on the right sleeve shaft 9, the replacing process is carried out, power is provided by the driving part, power is output by the tension pulley 18 to the belt in a tight state, the belt is transmitted to the two sleeve shafts 9 to realize synchronous rotation at the same speed, and by adopting the synchronous design, the quantity of the left sleeve shaft 9 for releasing the filtering membrane is consistent with the quantity of the right sleeve shaft 9 for winding the filtering membrane.

By adopting the design, a new filtering membrane can be automatically switched when needed, and the used filtering membrane is moved to one side, so that people can switch conveniently.

The sleeve shaft 9 can be detached so as to replace the filtering membrane, the detachment process can be performed by manually separating the first butt joint column 10 and the second butt joint column 12, and the two columns can be mutually adsorbed through magnetism after being re-matched together.

After the sleeve shafts 9 are replaced, in order to enable the filtering membrane between the sleeve shafts 9 to be in a fastening state, the winding degree of one sleeve shaft 9 needs to be adjusted, because the two sleeve shafts 9 move synchronously under the belt tensioning environment, one sleeve shaft 9 is manually turned, the other sleeve shaft can also rotate synchronously, in order to achieve adjustment, one sleeve shaft 9 is inevitably required to be rotated, the other sleeve shaft is not required to be moved, at the moment, the push handle 20 needs to be pressed to retract the sliding block 17, the pressure applied to the belt by the tension wheel 18 is in a loose state, and the rotation of one sleeve shaft 9 under the state can not drive the other sleeve shaft to also rotate.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (5)

1. The utility model provides a polytetrafluoroethylene filters formula helmet, includes the helmet body that holds human head appearance chamber, and the front end of the helmet body has been seted up and has been placed mouth, its characterized in that: the both sides fixed symmetry of placing the mouth is equipped with and links up piece (1), it has breach (2) to link up the inner wall of piece (1) to set up, interior caulking groove (3) have been seted up to the downside of breach (2), form the echelonment between breach (2) and the interior caulking groove (3), filter (4) have been placed to the space of linking up piece (1) can be dismantled, be equipped with filtration membrane on filter (4), filtration membrane has the polytetrafluoroethylene composition, the both sides of filter (4) are equipped with interior caulking block (5) that size and interior caulking groove (3) match, interior caulking block (5) can pass breach (2) and imbed in interior caulking groove (3), the hole has still been seted up to the top of breach (2), vertical activity is equipped with retaining member (6) in the hole.

2. A polytetrafluoroethylene filtering helmet according to claim 1, wherein: an outward pushing spring is arranged between the inner end of the inner hole and the locking piece (6).

3. A polytetrafluoroethylene filtering helmet according to claim 1 or 2, wherein: the filter plate is characterized in that a square through opening (7) is formed in the plate surface of the filter plate (4), four corners above and below the two sides of the filter plate (4) are respectively provided with a connecting shaft body (8) in a rotating mode, the connecting shaft bodies (8) in the same vertical direction are arranged in an opposite mode, a sleeve shaft (9) is fixedly connected between the connecting shaft bodies (8) and the sleeve shaft (9), a first pair of connecting columns (10) are fixedly arranged on the connecting shaft bodies (8), butt-joint blocks (11) are fixedly arranged on the end surfaces of the first pair of connecting columns (10), second butt-joint columns (12) are fixedly arranged on the two sides of the sleeve shaft (9), butt-joint grooves (13) are formed in the end surfaces of the second pair of connecting columns (12), the butt-joint blocks (11) can be embedded into the butt-joint grooves (13), the sleeve shaft (9) is used for winding the filter membrane, the filter membrane is pulled to the sleeve shaft (9) on the other side from one side, fixed sleeve shaft (8) below, fixed sleeve belt pulleys (14) are arranged on the two connecting shaft bodies (8), a sliding rod (15) and a baffle plate (16) is fixedly arranged on the bottom surface of the filter plate (4), the sliding rod (15) is perpendicular to the baffle (16), a sliding block (17) is arranged on the sliding rod (15) in a sliding mode, a driving part is fixedly arranged in the sliding block (17), an output shaft of the driving part faces upwards, a tensioning wheel (18) is fixedly arranged, a triangular relation is formed between the two belt wheels (14) and the tensioning wheel (18), a belt is sleeved on the triangular relation, and an extrusion spring (19) is arranged between the sliding block (17) and the baffle (16) so that the sliding block (17) can be pushed outwards by the extrusion spring (19) under the condition of not receiving external force to achieve tensioning of the belt.

4. A polytetrafluoroethylene filtering helmet according to claim 3, wherein: and a pushing handle (20) is arranged on one surface of the sliding block (17) back to the extrusion spring (19).

5. A polytetrafluoroethylene filtering helmet according to claim 3, wherein: the first butt-joint column (10) is supported by a magnetic material, and the second butt-joint column (12) is made of a magnetic material.

Images