Anti-suffocation device

Abstract

The utility model provides an anti-suffocation device. The anti-suffocation device comprises a first shell and a piston assembly. The first shell comprises a shell body and a cover body installed on the top of the shell body. The piston assembly comprises a piston rod with one end arranged in the first shell and a piston head arranged on the piston rod in a sleeving mode, and a clamping groove is formed in the piston rod. Wherein a first through hole for the piston rod to penetrate through is formed in the middle of the cover body, a mounting piece is arranged on the side, facing the first shell, of the cover body, and a clamping assembly matched with the clamping groove in a limiting and clamping mode is movably mounted on the mounting piece; the piston head is provided with a first abutting part matched with the clamping assembly so as to abut against and push the clamping assembly to move out of the clamping groove when the piston head moves upwards to the clamping assembly. The clamping assembly is arranged on the mounting piece of the cover body, the clamping groove is formed in the piston rod, and the clamping assembly and the clamping groove are matched in a clamping mode to provide a clamping and locking effect for the piston rod, so that the piston assembly is clamped on the cover body, and matching or operation of other structural components is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of portable medical supplies, and particularly relates to an anti-asphyxia device. Background Art

[0002] Tracheal foreign body obstruction is one of the common acute and critical diseases, which can cause patients' dyspnea, pneumonia and atelectasis. If not treated in time, severe cases may lead to asphyxia and death. When a foreign body blocks the airway, in addition to using the Heimlich maneuver for first aid, currently, a negative pressure type anti-asphyxia device can also be used for treatment. The blocked foreign body is extracted by negative pressure, which is convenient for operation and can also prevent secondary injuries caused by improper operation of the Heimlich maneuver.

[0003] The existing anti-asphyxia devices usually adopt a piston type structure, and the air is exchanged by pushing and pulling the piston to achieve the required negative pressure effect. However, the piston rod of such a structure lacks a clamping or fixing structure, resulting in the piston rod being in a movable state. Especially, it cannot be fixed during its energy storage, which is not convenient for subsequent other operations and is also not convenient for storage. Therefore, it needs to be improved. Summary of the Utility Model

[0004] In order to solve the technical problem that the existing piston rod is in a movable state, the utility model provides an anti-asphyxia device.

[0005] In order to achieve the purpose of the utility model, the following technical solutions are adopted:

[0006] An anti-asphyxia device includes a first outer shell, which includes a shell and a cover body installed on the top of the shell; and a piston assembly, which includes a piston rod with one end arranged in the first outer shell and a piston head sleeved on the piston rod. A clamping groove is arranged on the piston rod. Wherein, a first through hole for inserting the piston rod is arranged in the middle of the cover body, and an installation part is arranged on the side of the cover body facing the first outer shell. The installation part is movably installed with a clamping component that is in limit clamping fit with the clamping groove. The piston head is provided with a first pushing part that cooperates with the clamping component to push the clamping component out of the clamping groove when the piston head moves upward to the clamping component.

[0007] Further, the clamping component includes a clamping part and a first elastic part with two ends respectively abutted against the installation part and the clamping part.

[0008] Further, one end of the clamping part away from the installation part has a clamping head adapted to the clamping groove and a second pushing part that is slidably matched with the first pushing part.

[0009] Further, a limiting groove is arranged in the installation part, and a limiting block is arranged at one end of the clamping part located in the installation part. The limiting block is located in the limiting groove.

[0010] Further, the movable stroke of the limiting block in the limiting groove is greater than the moving stroke when the second pushing part is pushed.

[0011] Further, a buffer member is provided at one end of the piston head facing the cover body.

[0012] Further, a plurality of through grooves extending axially are circumferentially arranged on the inner wall of the first through hole.

[0013] Further, a plurality of second through holes are spaced apart from one end of the second housing at the top of the piston rod facing the cover body.

[0014] Further, the first pushing part and the second pushing part have mating abutting inclined surfaces.

[0015] Further, more than two clamping components are circumferentially and spacedly installed on the mounting member.

[0016] Further, the housing is provided with a visual window.

[0017] Further, the housing is provided with a hanging member.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The mounting member of the cover body is provided with a clamping component, and the piston rod is provided with a clamping groove. The clamping cooperation between the clamping component and the clamping groove provides a clamping and locking effect for the piston rod, so that the piston assembly is clamped on the cover body for the cooperation or operation of other structural components. In addition, the piston head is provided with a first pushing part for pushing the clamping component out of the clamping groove. After the piston head moves upward to release the clamping and locking of the piston rod, the piston rod can move. And after the piston rod moves upward, the piston head is located at the bottom of the piston rod to drive the piston head to move to a predetermined position when the piston rod is reset. The cooperation between the piston head and the clamping component realizes the reset of the piston head to a predetermined position on the piston rod, with a simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a top view of the cover body of the present utility model;

[0021] Figure 2 is a perspective view of the cover body of the present utility model;

[0022] Figure 3It is a cross-sectional view of the cover body of the present utility model;

[0023] Figure 4 It is a perspective view of the anti-asphyxiation device of the present utility model;

[0024] Figure 5 It is a cross-sectional view of the anti-asphyxiation device of the present utility model;

[0025] Figure 6 It is Figure 5 an enlarged schematic view of part A;

[0026] Figure 7 It is a perspective view of the piston assembly of the present utility model;

[0027] Figure 8 It is a cross-sectional view of the piston assembly of the present utility model;

[0028] Figure 9 It is a schematic view of a state of the anti-asphyxiation device of the present utility model;

[0029] Figure 10 It is another schematic view of a state of the anti-asphyxiation device of the present utility model.

[0030] Reference numerals: 1, the first outer shell; 11, the cover body; 111, the first through hole; 1111, the through groove; 112, the mounting member; 1121, the limiting groove; 12, the visible window; 2, the piston assembly; 21, the piston rod; 211, the clamping groove; 212, the second outer shell; 2121, the second through hole; 22, the piston head; 221, the first pushing portion; 3, the clamping assembly; 31, the clamping member; 311, the clamping head; 312, the second pushing portion; 32, the first elastic member; 4, the buffer member; 5, the suspension member. Detailed implementation manners

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0032] In this article, terms such as "upper, lower, inner, outer" are established based on the positional relationship shown in the drawings. Depending on the different drawings, the corresponding positional relationship may also change accordingly. Therefore, it cannot be understood as an absolute limitation of the protection scope; moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0033] Refer to Figures 1-10, this embodiment provides an anti-asphyxiation device, which includes a first housing 1 and a piston assembly 2. The first housing 1 includes a housing body and a cover body 11 installed on the top of the housing body; the piston assembly 2 includes a piston rod 21 with one end disposed inside the first housing 1 and a piston head 22 sleeved on the piston rod 21, and a clamping groove 211 is provided on the piston rod 21; wherein, a first through hole 111 for inserting the piston rod 21 is provided in the middle of the cover body 11, and a mounting member 112 is provided on the side of the cover body 11 facing the first housing 1. The mounting member 112 is movably installed with a clamping assembly 3 that is in limit clamping fit with the clamping groove 211, and the piston head 22 is provided with a first pushing portion 221 that cooperates with the clamping assembly 3 to push the clamping assembly 3 out of the clamping groove 211 when the piston head 22 moves upward to the clamping assembly 3.

[0034] A clamping assembly 3 is provided on the mounting member 112 of the cover body 11, and a clamping groove 211 is provided on the piston rod 21. The clamping fit between the clamping assembly 3 and the clamping groove 211 provides a clamping and locking effect for the piston rod 21, so that the piston assembly 2 is stuck on the cover body 11 for the cooperation or operation of other structural components. In addition, the piston head 22 is provided with a first pushing portion 221 that pushes the clamping assembly 3 out of the clamping groove 211. After the piston head 22 moves upward to release the clamping and locking of the piston rod 21, the piston rod 21 can move. And after the piston rod 21 moves upward, the piston head 22 is at the bottom of the piston rod 21 to drive the piston head 22 to move to a predetermined position when the piston rod 21 is reset. Through the cooperation between the piston head 22 and the clamping assembly 3, the piston head 22 is reset to a predetermined position on the piston rod 21, with a simple structure and convenient operation. Among them, the mounting member 112 can be an integral structure with the cover body 11, or the mounting member 112 is installed on the cover body 11 through screws or bonding structures or clamping structures. Preferably, the mounting member 112 is installed on the cover body 11 through screws to facilitate the installation of the clamping assembly 3 on the mounting member 112.

[0035] See Figure 5 , usually an elastic member is provided below the piston head 22 to give the piston head 22 a force to move upward along the piston rod 21, so as to form a negative pressure condition after the piston moves upward and provide a better negative pressure suction effect. An intake valve and an exhaust valve are installed at the bottom of the housing. Preferably, the elastic member can be a spring, or an elastic rubber sleeve or a barrel-shaped leaf spring, etc. More preferably, one end of the elastic member abuts against the first housing 1, and the other end is sleeved on the bottom end of the piston head 22 in a reduced manner, so that the elastic member is not easily displaced and the elastic force applied to the piston head 22 is more stable.

[0036] Generally speaking, when in use, first perform a preparation operation and then a relief operation. In the preparation operation: first connect the mask to make the mask communicate with the air extraction part of the anti-asphyxiation device; such as Figure 9In the position shown, the piston head 22 is located above the inside of the anti-asphyxiation device and is disengaged from the piston rod 21. The piston rod 21 is pulled upward to a preset position so that the piston head 22 is stuck at the bottom of the piston rod 21; as Figure 10 In the position shown, then the piston rod 21 and the piston head 22 thereon are moved downward to a preset position, and the piston rod 21 is stuck on the cover body 11 to maintain the squeezing state of the elastic member. During the relief operation: first, put on the mask on the human face; then control the piston head 22 to unlock, so that the piston head 22 moves upward under the elastic force of the elastic member, as Figure 5 In the position shown, the air pressure at the bottom of the anti-asphyxiation device decreases, and the gas in the mask enters the anti-asphyxiation device from the intake valve; thereby reducing the air pressure at the bottom of the mask to form a suction force to suck out foreign objects in the throat. The piston rod 21 is stuck on the cover body 11, which is convenient for fixing when compressing the spring and convenient for energy storage; it can also prevent the piston rod 21 from loosening, keep it in the state of inserting into the inside of the housing, reduce space occupation and facilitate storage. Preferably, before use of the anti-asphyxiation device, as Figure 5 shown, the piston head 22 is in an active state, and the piston rod 21 maintains the state of extending into the inside of the housing to prevent the elastic member from failing due to long-term extrusion.

[0037] Further, referring to Figure 3 、 6 , the clamping assembly 3 includes a clamping member 31 and a first elastic member 32 with two ends respectively abutting against the mounting member 112 and the clamping member 31. The first elastic member 32 gives the clamping member 31 a force located in the clamping groove 211 to ensure the effect of clamping and locking the piston rod 21. Preferably, the first elastic member 32 can be a spring, and can also be an elastic rubber sleeve or an elastic rubber block or a leaf spring, etc. More preferably, one end of the first elastic member 32 abuts against the mounting member 112, and the other end is sleeved on the end of the clamping member 31 away from the piston rod 21.

[0038] Further, referring to Figure 3 、 8 , the end of the clamping member 31 away from the mounting member 112 has a clamping head 311 adapted to the clamping groove 211 and a second abutting portion 312 slidably mating with the first abutting portion 221. The clamping head 311 is horizontally inserted into the clamping groove 211, and the second abutting portion 312 is located on the other side of the clamping head 311 and extends in the direction approaching the piston head 22. Preferably, the first abutting portion 221 and the second abutting portion 312 have mating abutting inclined surfaces to stably push the clamping member 31 so that the clamping head 311 moves out of the clamping groove 211.

[0039] Further, referring to Figure 3 、 6, a limiting groove 1121 is provided in the mounting member 112, and a limiting block is provided at one end of the clamping member 31 located inside the mounting member 112. The limiting block is located inside the limiting groove 1121 to prevent the clamping member 31 from being moved out of the mounting member 112 by the elastic force of the first elastic member 32. Preferably, the movable stroke of the limiting block inside the limiting groove 1121 is greater than the moving stroke when the second pushing portion 312 is pushed, so as to ensure that the displacement of the clamping member 31 can enable the clamping head 311 to move into / out of the clamping groove 211.

[0040] Further, referring to Figure 6 , a buffer member 4 is provided at one end of the piston head 22 facing the cover body 11 to prevent the mounting member 112 and the clamping member 31 from being damaged by force when the piston head 22 moves upward until the first pushing portion 221 pushes the second pushing portion 312. Preferably, the buffer member 4 is made of rubber material. Of course, it can also be made of materials such as sponge that can play a buffering and protecting role. Preferably, the buffer member 4 is clamped on the upper end of the piston head 22. Referring to Figure 6 , the buffer member 4 is in a C shape, and the bottom expands outward in the horizontal direction on both sides. Of course, the buffer member 4 can also be of other shapes, such as a square shape, etc. In addition, the buffer member 4 can also prevent the piston head 22 from moving upward too fast and causing too much impact on the cover body 11, resulting in affecting the restriction of the piston rod 21 by the clamping assembly 3.

[0041] Further, referring to Figure 1 , a plurality of through grooves 1111 extending axially are circumferentially arranged on the inner wall of the first through hole 111, so that when the piston head 22 moves upward to form a negative pressure condition, the air above the piston head 22 can be discharged from the through grooves 1111. The through grooves 1111 can be triangular or semi-circular or trapezoidal.

[0042] Further, referring to Figure 7 , a plurality of second through holes 2121 are provided at intervals at one end of the second outer shell 212 at the top of the piston rod 21 facing the cover body 11 to prevent the air above the piston head 22 from being difficult to discharge due to the influence of the piston rod 21. Preferably, there are more than 4 second through holes 2121 to improve the exhaust effect. The second through holes 2121 can be triangular or semi-circular or trapezoidal or rectangular.

[0043] Further, two or more clamping assemblies 3 are circumferentially and spacedly installed on the mounting member 112 to ensure the clamping and locking effect on the piston rod 21.

[0044] Further, referring to Figure 4 , the housing is provided with a visual window 12 to facilitate the user's observation.

[0045] Further, referring to Figure 4 , the housing is provided with a hanging member 5 to facilitate placement when not in use.

[0046] Without violating the gist of the present utility model and not conflicting with the technical means, at least some of the technical implementation manners in the above embodiments may be combined or replaced.

[0047] The above are only the preferred implementation manners of the present utility model. The protection scope of the present utility model shall be subject to the scope defined by the claims. Several improvements and refinements made by those skilled in the art without departing from the spirit and scope of the present utility model shall also be regarded as within the protection scope of the present utility model.

Claims

1. An anti-asphyxiation device, characterized in that, Comprising A first outer shell, including a housing and a cover installed on the top of the housing; and A piston assembly, including a piston rod with one end disposed inside the first outer shell and a piston head sleeved on the piston rod, and a clamping groove is provided on the piston rod; Wherein, a first through hole for inserting the piston rod is provided in the middle of the cover, an installation member is provided on one side of the cover facing the first outer shell, and a clamping component that is movably installed and is in limiting clamping fit with the clamping groove is installed on the installation member, and the piston head is provided with a first pushing portion that cooperates with the clamping component to push the clamping component out of the clamping groove when the piston head moves upward to the clamping component.

2. The anti-asphyxia device according to claim 1, wherein The clamping component includes a clamping member and a first elastic member with two ends respectively abutting against the installation member and the clamping member.

3. The anti-asphyxia device according to claim 2, wherein One end of the clamping member away from the installation member has a clamping head adapted to the clamping groove and a second pushing portion that is slidably matched with the first pushing portion.

4. The anti-asphyxia device according to claim 3, characterized in that, A limiting groove is provided inside the installation member, and a limiting block is provided at one end of the clamping member located inside the installation member, and the limiting block is located in the limiting groove.

5. The anti-asphyxia device according to claim 4, wherein The movable stroke of the limiting block in the limiting groove is greater than the moving stroke when the second pushing portion is pushed.

6. The anti-asphyxia device according to any one of claims 1-5, characterized in that, A buffer member is provided at one end of the piston head facing the cover.

7. The anti-asphyxia device according to claim 6, wherein, A plurality of through grooves extending axially are circumferentially arranged on the inner wall of the first through hole.

8. The anti-asphyxiation device according to claim 7, characterized in that, A plurality of second through holes are provided at intervals at one end of the second outer shell at the top of the piston rod facing the cover.

9. The anti-asphyxia device according to claim 3, characterized in that, The first pushing portion and the second pushing portion have mutually cooperating abutting inclined surfaces; And / or, more than two clamping components are circumferentially and spacedly installed on the installation member.

10. The anti-asphyxia device according to claim 1, characterized in that, The housing is provided with a visual window; And / or, the housing is provided with a hanging member.

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