CN220046887U

CN220046887U - Gas mask with easily changeable filtering structure

Info

Publication number: CN220046887U
Application number: CN202320701108.8U
Authority: CN
Inventors: 邓永兵; ***; 朱琳; 汤金芳
Original assignee: Jiangsu Gaoma Safety Equipment Co ltd
Current assignee: Jiangsu Gaoma Safety Equipment Co ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-11-21
Anticipated expiration: 2033-04-03

Abstract

The utility model relates to the technical field of gas masks, and discloses a gas mask with a filter structure easy to replace. According to the utility model, when the filter cotton needs to be replaced and detached, the operator drives the connected bottom shell to move towards the rear end through the handle, the bottom shell drives the connected inner sleeve to move towards the rear end in the upper cover, and the steel balls in the surface channels are driven to roll by the movement of the inner sleeve, so that the clamping strips are separated from the installation shell, the rapid filter cotton detachment and replacement work is achieved, and the filter cotton and the fixing block are rapidly detached and replaced, so that the filter cotton filter is very convenient to operate.

Description

Gas mask with easily changeable filtering structure

Technical Field

The utility model relates to the technical field of gas masks, in particular to a gas mask with a filtering structure easy to replace.

Background

The gas mask is personal labor articles, also individual protective articles, is worn on the head to protect the respiratory organs, eyes and faces of people, and is a personal protective device for preventing toxic substances such as toxic gases, dust, bacteria, toxic harmful gases or steam from damaging, chemical enterprises have various chemical equipment and chemical substances, and when various emergency accidents are treated, run, overflow, drip, leak or equipment maintenance, workers are often faced with various acidic and alkaline gas liquids and the like, and in order to prevent the chemical substances from damaging the workers, particularly the face protection, the gas mask is required to be equipped;

the filter that sets up is through filtering poison gas and some harmful gas to the present gas mask, prevent to get into the face guard inside, inhale inside the injury in the health by search and rescue personnel and staff, because the long-time use of gas mask for the filter cotton of filter inside is suffered for a long time and is destroyed the incomplete of poison gas and the impurity in some gases adheres to its surface, make the filter effect of filter cotton weaken, and the life-span of filter cotton is limited, it needs to be changed to a certain extent, current filter cotton is dismantled through simple block and is changed, long-time use and spill thick road violent the bump easy emergence come off, make the staff can get into poison gas at the in-process of speedily carrying out rescue work, cause staff's health seriously impaired.

Disclosure of Invention

The utility model aims to provide a gas mask with a filtering structure easy to replace, and the device is used for working, so that the problem that the filter cotton of the existing gas mask is difficult to replace is solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an easily change filter structure's breathing mask, includes the mask main part, the surface of mask main part is provided with the picture frame that is used for seeing the outside, and the both ends of mask main part are provided with the bandeau that is used for mask main part and head to be fixed, the below of picture frame is provided with the fixed block that is used for fixed, and the front end of fixed block is provided with the cotton filter that is used for filtering poison gas, the below of cotton filter is provided with the respirator that is used for the staff to breathe oxygen, the surface of cotton filter is provided with the dismouting structure, and the dismouting structure is including setting up the card strip on cotton filter surface, and card strip and cotton filter are fixed connection, the rear end of card strip is provided with the opening, and the card strip is provided with two sets of to two sets of card strips make cotton filter block more firm.

The utility model provides an easily change filter structure's breathing mask, includes the mask main part, the surface of mask main part is provided with the picture frame that is used for seeing the outside, and the both ends of mask main part are provided with the bandeau that is used for mask main part and head to be fixed, the below of picture frame is provided with the fixed block that is used for fixed, and the front end of fixed block is provided with the cotton filter that is used for filtering poison gas, the below of cotton filter is provided with the respirator that is used for the staff to breathe oxygen, the surface of cotton filter is provided with dismouting structure;

the dismouting structure is including setting up the card strip on the cotton surface of straining, and card strip and cotton are fixed connection, the rear end of card strip is provided with the opening, the right-hand member of card strip is provided with the installation shell, and the side of installation shell is provided with the notch, and the inside of notch is provided with the handle, and the right-hand member of handle is provided with the drain pan, the outside of drain pan is provided with the upper cover, and the inner wall of upper cover sets up the one end of spring, and the other end of spring is provided with the endotheca, the endotheca is located the inside of drain pan, and the lateral wall of endotheca is provided with the channel, and the inside roll of channel has the steel ball, and the card strip is provided with two sets of to two sets of card strips make cotton straining block more firm.

Further, the surface of the clamping strip is made of rough materials, the clamping strip is opposite to the position corresponding to the opening, and the opening is positioned on the surface of the mounting shell.

Further, the left end of the handle protrudes out of the side face of the installation shell, the bottom shell is connected with the handle, the handle drives the bottom shell to move, and the handle slides in the notch.

Further, the top of the inner sleeve is connected with the other end of the spring, the inner sleeve and the spring form a telescopic reset structure, and the inner sleeve is of a conical structure.

Further, the bottom shell is of a conical structure, the top of the upper cover is fixedly connected with the mounting shell, and the upper cover is of a conical structure.

Further, the bottom shell slides in the upper cover, the inner wall of the bottom shell is contacted with the surface of the steel ball, the clamping strip is inserted through the opening on the surface of the mounting shell, the clamping strip moves the steel ball to roll downwards in the groove, and the clamping strip is contacted with the surface of the steel ball.

Further, the length of the channel is larger than the diameter of the steel ball.

Further, the steel balls roll downwards in the channel, the steel balls are provided with a plurality of groups, the distance between the diameters of the plurality of groups of steel balls is equal to the diameter of the clamping strip, the plurality of groups of steel balls roll along with the movement of the clamping strip, and the plurality of groups of steel balls move to the lowest diameter of the channel and are larger than the diameter of the clamping strip.

Compared with the prior art, the utility model has the following beneficial effects:

the gas mask with the filter structure easy to replace is provided by the utility model, and the filter cotton of the existing gas mask is not easy to replace; when the filter cotton needs to be replaced and detached, a worker slides to the rear end through the notch on the side wall of the mounting shell by the handle, so that the handle drives the connected bottom shell to move to the rear end, the bottom shell drives the connected inner sleeve to move to the rear end, the inner sleeve drives the spring to compress and store force, the inner sleeve moves to drive the steel balls in the surface channel to roll, the inner sleeve is in a conical structure, a plurality of groups of steel balls slide in the channel, the distance between the groups of steel balls is larger than the diameter of the clamping strip, the steel balls do not contact the surface of the clamping strip, the worker grabs the filter cotton to drive the clamping strip to move to the front end, the clamping strip is separated from the inside of the mounting shell, the filter cotton and the fixing block are rapidly detached, the filter cotton is very convenient to operate, the clamping strip is driven to reversely pull out, the steel balls are blocked to move left when the clamping strip is driven to reversely pull out by the problem in use, meanwhile, the clamping strip is driven to move inwards, the steel balls are tightly forwards in the middle of the conical structure, and the clamping strip is rapidly replaced, and the mask is quickly replaced by the steel balls, so that the mask is in a more compact state is realized.

Drawings

FIG. 1 is a schematic diagram of the overall three-dimensional structure of the present utility model;

FIG. 2 is a schematic diagram of a three-dimensional structure of the filter cotton and the disassembling structure of the present utility model;

FIG. 3 is a schematic three-dimensional cross-sectional view of the mounting structure of the present utility model;

fig. 4 is a schematic diagram showing a three-dimensional cross-sectional structure of the bottom shell, the steel balls and the clamping strips;

FIG. 5 is a schematic diagram of the filter cotton dismounting structure and the fixing plate unfolding side sectional structure of the utility model;

fig. 6 is a schematic view of the filter cotton dismounting structure and the mounting structure of the fixing plate of the present utility model.

In the figure: 1. a mask body; 2. a frame; 3. a headband; 4. a respirator; 5. a fixed block; 6. filtering cotton; 7. a disassembly and assembly structure; 71. clamping strips; 72. a mounting shell; 73. a handle; 74. a notch; 75. an opening; 76. an upper cover; 77. a spring; 78. a bottom case; 79. an inner sleeve; 710. steel balls; 711. a channel.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings.

1-6, an easily change filter structure's breathing mask, including mask main part 1, the surface of mask main part 1 is provided with and is used for seeing outside picture frame 2, and the both ends of mask main part 1 are provided with the bandeau 3 that are used for mask main part 1 and head to be fixed, and the below of picture frame 2 is provided with the fixed block 5 that is used for fixed, and the front end of fixed block 5 is provided with the cotton filter 6 that is used for filtering poison gas, and the below of cotton filter 6 is provided with the respirator 4 that is used for the staff to breathe oxygen, and the surface of cotton filter 6 is provided with dismouting structure 7.

The utility model is further described below with reference to examples.

Examples

Referring to fig. 1-6, the dismounting structure 7 includes a clamping strip 71 disposed on the surface of the filter cotton 6, where the clamping strip 71 is fixedly connected with the filter cotton 6, an opening 75 is disposed at a rear end of the clamping strip 71, a mounting shell 72 is disposed at a right end of the clamping strip 71, a notch 74 is disposed on a side surface of the mounting shell 72, a handle 73 is disposed inside the notch 74, a bottom shell 78 is disposed at a right end of the handle 73, an upper cover 76 is disposed outside the bottom shell 78, one end of a spring 77 is disposed on an inner wall of the upper cover 76, an inner sleeve 79 is disposed at the other end of the spring 77, the inner sleeve 79 is disposed inside the bottom shell 78, a channel 711 is disposed on a side wall of the inner sleeve 79, steel balls 710 are rolled inside the channel 711, and the clamping strip 71 is disposed with two groups, and the two groups of clamping strips 71 make the filter cotton 6 clamped more firmly.

The surface of card strip 71 is the roughness material, and the position of card strip 71 just corresponding opening 75, and opening 75 is located the surface of installation shell 72, and the left end protrusion of handle 73 is in the side of installation shell 72, and drain pan 78 is connected with handle 73 to handle 73 drives drain pan 78 and removes, and handle 73 slides in notch 74 inside convenient to dismantle.

The top of the inner sleeve 79 is connected with the other end of the spring 77, the inner sleeve 79 and the spring 77 form a telescopic reset structure, the inner sleeve 79 is in a conical structure, the bottom shell 78 is in a conical structure, the top of the upper cover 76 is fixedly connected with the mounting shell 72, the upper cover 76 is also in a conical structure, the bottom shell 78 slides in the upper cover 76, the inner wall of the bottom shell 78 is contacted with the surface of the steel ball 710, the clamping strip 71 is inserted through the opening 75 on the surface of the mounting shell 72, the clamping strip 71 drives the steel ball 710 to roll downwards in the channel 711, the clamping strip 71 is contacted with the surface of the steel ball 710, the length of the channel 711 is larger than the diameter of the steel ball 710, the steel ball 710 rolls downwards in the channel 711, the steel balls 710 are provided with a plurality of groups, the distance between the diameters of the steel balls 710 is equal to the diameter of the clamping strip 71, the plurality of the steel balls 710 roll along with the movement of the clamping strip 71, the plurality of the steel balls 710 move to reach the lowest diameter of the channel to be larger than the diameter of the clamping strip 71, and the clamping strip 71 is convenient to separate.

Specifically, the worker is fixed with the head through the headband 3 at the two ends of the mask body 1, then sees the disaster environment through the glasses frame, then the mouth sucks oxygen through the respirator 4, and the poison gas is filtered through the filter cotton 6 of the filter, and the filter cotton 6 is connected through the fixing block 5, when the filter cotton 6 needs to be replaced and detached, the worker slides to the rear end through the notch 74 of the side wall of the mounting shell 72 through the handle 73, so that the handle 73 drives the connected bottom shell 78 to move to the rear end, and the bottom shell 78 drives the connected inner sleeve 79 to move to the rear end, so that the inner sleeve 79 moves to the rear end in the upper cover 76, and the inner sleeve 79 drives the spring 77 to compress the storing force, and then the movement of the inner sleeve 79 drives the steel balls 710 in the surface channel 711 to roll, the plurality of groups of steel balls 710 slide in the channel 711 due to the conical structure of the inner sleeve 79, the distance between the groups of steel balls 710 is larger than the diameter of the clamping strip 71, the steel balls 710 do not contact the surface of the clamping strip 71, the clamping strip 71 is driven to move towards the front end by a worker to enable the clamping strip 71 to be separated from the inside of the mounting shell 72, further the quick dismounting of the filter cotton 6 is achieved, the filter cotton 6 is convenient and quick to replace, when a new filter cotton 6 needs to be mounted, the worker grabs the new filter cotton 6 to drive the clamping strip 71 to be inserted into the interior in a position aligned with the opening 75, as two groups of steel balls 710 are arranged in the side wall channel 711 of the inner sleeve 79, and when the two groups of steel balls 710 are positioned at the front end of the channel 711, the distance between the two groups of steel balls 710 is smaller than the diameter of the clamping strip 71, so that the clamping strip 71 drives the two groups of steel balls 710 in the channel 711 of the inner sleeve 79 to move backwards, the channel 711 simultaneously drives the inner sleeve 79 to move backwards, and because the conical steel balls 710 of the bottom shell 78 move inwards and outwards in the channel 711, the distance gap between the two groups of steel balls 710 is increased, the clamping strips 71 are inserted, the filter cotton 6 and the fixed block 5 are rapidly installed, the operation is very convenient, when the clamping strips 71 are driven to be pulled out reversely due to the problem of collision when the mask is used, the clamping strips 71 drive the steel balls 710 to move left, the steel balls 710 are simultaneously subjected to inward force of the conical bottom shell 78, the gap between the steel balls 710 moving forward is smaller, the clamping strips 71 are clamped tightly, the locking state is realized, and the rapid disassembly and replacement work of a plurality of groups of gas masks is realized through the operation, so that the efficiency is improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A gas mask with an easy-to-replace filter structure, comprising a mask body (1), characterized in that: the face mask is characterized in that a mirror frame (2) used for seeing the outside is arranged on the surface of the mask main body (1), a headband (3) used for fixing the mask main body (1) and the head is arranged at two ends of the mask main body (1), a fixing block (5) used for fixing is arranged below the mirror frame (2), a filter cotton (6) used for filtering toxic gas is arranged at the front end of the fixing block (5), a respirator (4) used for breathing oxygen by workers is arranged below the filter cotton (6), and a disassembly structure (7) is arranged on the surface of the filter cotton (6);

the dismouting structure (7) is including setting up card strip (71) on filter pulp (6) surface, and card strip (71) is fixed connection with filter pulp (6), the rear end of card strip (71) is provided with opening (75), the right-hand member of card strip (71) is provided with installation shell (72), the side of installation shell (72) is provided with notch (74), and the inside of notch (74) is provided with handle (73), the right-hand member of handle (73) is provided with drain pan (78), the outside of drain pan (78) is provided with upper cover (76), the inner wall of upper cover (76) sets up the one end of spring (77), and the other end of spring (77) is provided with endotheca (79), endotheca (79) are located the inside of drain pan (78), and the lateral wall of endotheca (79) is provided with channel (711), and the inside roll of channel (711) has steel ball (710), and card strip (71) are provided with two sets of to two sets of card strips (71) make filter pulp (6) block more firm.

2. A respirator having an easily replaceable filter structure according to claim 1, wherein: the surface of the clamping strip (71) is made of rough materials, the clamping strip (71) is opposite to the position corresponding to the opening (75), and the opening (75) is located on the surface of the mounting shell (72).

3. A respirator having an easily replaceable filter structure according to claim 1, wherein: the left end of the handle (73) protrudes out of the side face of the mounting shell (72), the bottom shell (78) is connected with the handle (73), the handle (73) drives the bottom shell (78) to move, and the handle (73) slides in the notch (74).

4. A respirator having an easily replaceable filter structure according to claim 1, wherein: the top of the inner sleeve (79) is connected with the other end of the spring (77), the inner sleeve (79) and the spring (77) form a telescopic reset structure, and the inner sleeve (79) is of a conical structure.

5. A respirator having an easily replaceable filter structure according to claim 1, wherein: the bottom shell (78) is of a conical structure, the top of the upper cover (76) is fixedly connected with the mounting shell (72), and the upper cover (76) is of a conical structure.

6. The respirator of claim 5 wherein the filter structure is easily replaced, wherein: the bottom shell (78) slides in the upper cover (76), the inner wall of the bottom shell (78) is in contact with the surface of the steel ball (710), the clamping strip (71) is inserted through an opening (75) in the surface of the mounting shell (72), the clamping strip (71) drives the steel ball (710) to roll downwards in the groove (711), and the clamping strip (71) is in contact with the surface of the steel ball (710).

7. The respirator of claim 6 wherein the filter structure is easily replaced, wherein: the length of the channel (711) is greater than the diameter of the steel ball (710).

8. The respirator of claim 7 wherein the filter structure is easily replaced, wherein: the steel balls (710) roll downwards in the groove (711), the steel balls (710) are provided with a plurality of groups, the diameters of the steel balls (710) are spaced at intervals equal to the diameters of the clamping strips (71), the steel balls (710) roll along with the movement of the clamping strips (71), and the steel balls (710) move until the lowest diameter of the groove (711) is larger than the diameter of the clamping strips (71).