Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a fixing device of a medical oxygen mask, which can be suitable for the oxygen mask with a fixing sliding ring and a mask body. Or a common oxygen mask can be worn on the mouth and nose of a patient and then is directly tightened and fixed by using the fixing device; the fixing function can be realized through the friction force between the buckle belt body and the front jack and the rear jack parts; the buckle belt body can realize double locking through a double clamping design.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention discloses a fixing device of a medical oxygen mask, which comprises a clamping buckle, a rear jacking device, a driving device, a front jacking device and a buckle belt body;
the clamping buckle comprises a rectangular shell and further comprises:
the built-in cavity is arranged in the rectangular shell;
the transverse plate is tightly propped and arranged at the front half part of the built-in cavity along the left and right directions;
the rear jack penetrates through the rectangular shell along the vertical direction and is positioned behind the jacking transverse plate;
the front jack penetrates through the rectangular shell along the vertical direction and is positioned in front of the jacking transverse plate;
the upper opening is arranged at the rear half part of the upper end surface of the rectangular shell along the front-back direction;
the left screw hole is formed in the left side of the rear end face of the rectangular shell, a left bolt is arranged in the left screw hole, and a front limiting ring is arranged at the front end of the left bolt;
the middle screw hole is formed in the middle of the rear end face of the rectangular shell, and a tightening bolt is arranged in the middle screw hole;
the right screw hole is formed in the right side of the rear end face of the rectangular shell, a right bolt is arranged in the right screw hole, and a rear limiting ring is arranged in the middle of the right bolt;
the back roof device includes:
the rear top base is slidably inserted into the built-in cavity in the front-back direction, a rotary table jack which is communicated up and down is arranged in the middle of the rear top base, a narrow-mouth jack is arranged at the front end of the rotary table jack, the rear top base is respectively in inserting fit with the left bolt and the right bolt, and the rear top base is positioned between the front limiting ring and the rear limiting ring;
the connecting side arms are provided with a pair of connecting side arms which are symmetrically arranged at the left side and the right side of the front end surface of the rear top base;
the rear top pressure plate is arranged at the front ends of the connecting side arms, and the rear top pressure plate and the front end of the jacking transverse plate clamp the buckle belt body together when retreating;
the driving device includes:
the rotating disc is rotatably arranged in the rotating disc inserting hole;
the external thread rod is arranged on the front end face of the rotating disc and penetrates through the narrow-mouth insertion hole;
the spring jack is arranged at the rear end of the external thread rod and is in inserting fit with the front end of the tightening bolt;
the compression spring is inserted in the spring jack and positioned in front of the tightening bolt;
the front jacking device comprises a front jacking plate which is slidably inserted in the built-in cavity and positioned between the pair of connecting side arms, and a driven screw hole which is arranged in the front jacking plate and is in threaded fit with the external threaded rod;
the fixed end of the buckle belt body is fixed below the rear end face of the rectangular shell, and the free end of the buckle belt body penetrates through the fixed sliding ring.
The invention has the beneficial effects that:
can be applicable to from the oxygen face guard of taking fixed sliding ring and face guard body, wear the face guard body and wear at patient's oronasal position then insert through detaining the area body and establish the winding fixed on fixed sliding ring. It is also possible to wear a common oxygen mask over the nose and mouth of a patient and then tighten the fixation directly using the fixation device.
According to the fixing device of the medical oxygen mask, the free end of the buckle belt body firstly penetrates through the front jack, then is bent and is inserted into the rear jack in the opposite direction, and the fixing effect can be realized through the friction force between the buckle belt body and the front jack and the rear jack part.
According to the fixing device of the medical oxygen mask, the buckle belt body is clamped through the front jacking device and the jacking transverse plate, the buckle belt body is further clamped through the rear jacking device and the jacking transverse plate, and the double locking of the buckle belt body is realized through the double clamping design.
The fixing device of the medical oxygen mask can realize the adjustment of the upper top pressure of the buckle belt body by the upper top device:
the tightening bolt is rotated to rotate and step along the tightening screw hole, so that the initial elastic force F of the compression spring in a normal state is adjusted, and finally the extrusion stress of the front jacking device on the upper top of the buckle belt body in a critical state is adjusted.
The fixing device of the medical oxygen mask can realize the stroke adjustment of the back top pressure plate:
rotating the left bolt to rotate and step along the left screw hole, further adjusting the position of the front limiting ring, and adjusting the initial position of the rear jacking device in a normal state; and rotating the right bolt to rotate and step along the right screw hole, so as to adjust the position of the rear limiting ring and the position of the last end of the rear top pressure plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An oxygen mask suitable for respiratory medicine comprises a mask body 6 provided with a fixed sliding ring 61 and a fixing device for fixing the mask body 6;
the fixing device comprises a clamping buckle 1, a rear top device 2, a driving device 3, a front top device 4 and a buckle belt body 5;
the clamping buckle 1 comprises a rectangular housing 11, and further comprises:
the built-in cavity 12 is arranged in the rectangular shell 11;
a transverse plate 13 is tightly propped and arranged at the front half part of the built-in cavity 12 along the left-right direction;
the rear jack 14 penetrates through the rectangular shell 11 along the vertical direction and is positioned behind the jacking transverse plate 13;
the front insertion hole 15 penetrates through the rectangular shell 11 in the vertical direction and is positioned in front of the jacking transverse plate 13;
an upper opening 16 provided in the rear half of the upper end surface of the rectangular housing 11 in the front-rear direction;
the left screw hole 17 is formed in the left side of the rear end face of the rectangular shell 11, a left bolt 17a is arranged in the left screw hole 17, and a front limiting ring is arranged at the front end of the left bolt 17 a;
a middle screw hole 18 arranged in the middle of the rear end face of the rectangular shell 11, wherein a tightening bolt 18a is arranged in the middle screw hole 18;
the right screw hole 19 is formed in the right side of the rear end face of the rectangular shell 11, a right bolt 19a is arranged in the right screw hole 19, and a rear limiting ring is arranged in the middle of the right bolt 19 a;
the back roof device 2 includes:
the rear top base 21 is slidably inserted into the built-in cavity 12 in the front-back direction, a turntable insertion hole 21a which is through up and down is formed in the middle of the rear top base 21, a narrow-mouth insertion hole 21b is formed in the front end of the turntable insertion hole 21a, the rear top base 21 is respectively in insertion fit with the left bolt 17a and the right bolt 19a, and the rear top base 21 is located between the front limiting ring and the rear limiting ring;
a pair of connecting side arms 22 symmetrically arranged on the left side and the right side of the front end surface of the rear top base 21;
the rear top pressing plate 23 is arranged at the front ends of the pair of connecting side arms 22, and the rear top pressing plate 23 clamps the buckle belt body 5 together with the front end of the jacking transverse plate 13 when retreating;
the drive device 3 includes:
a rotating disk 31 rotatably provided in the turntable insertion hole 21 a;
an external screw rod 32 provided on the front end surface of the rotating disk 31 and passing through the narrow-mouth insertion hole 21 b;
a spring insertion hole 33 provided at the rear end of the external screw rod 32 and adapted to be inserted into the front end of the tightening bolt 18 a;
a compression spring 34 inserted into the spring insertion hole 33 and located in front of the tightening bolt 18 a;
the front jacking device 4 comprises a front jacking plate 41 which is slidably inserted in the built-in cavity 12 and is positioned between the pair of connecting side arms 22, and a driven screw hole 42 which is arranged in the front jacking plate 41 and is in threaded fit with the external thread rod 32;
the fixed end of the buckle belt body 5 is fixed below the rear end face of the rectangular shell 11, and the free end of the buckle belt body 5 penetrates through the fixed sliding ring 61.
The specific use method comprises the following steps:
a fixing device of a medical oxygen mask comprises a clamping buckle 1, a rear jacking device 2, a driving device 3, a front jacking device 4 and a buckle belt body 5;
the clamping buckle 1 comprises a rectangular housing 11, and further comprises:
the built-in cavity 12 is arranged in the rectangular shell 11;
a transverse plate 13 is tightly propped and arranged at the front half part of the built-in cavity 12 along the left-right direction;
the rear jack 14 penetrates through the rectangular shell 11 along the vertical direction and is positioned behind the jacking transverse plate 13;
the front insertion hole 15 penetrates through the rectangular shell 11 in the vertical direction and is positioned in front of the jacking transverse plate 13;
an upper opening 16 provided in the rear half of the upper end surface of the rectangular housing 11 in the front-rear direction;
the left screw hole 17 is formed in the left side of the rear end face of the rectangular shell 11, a left bolt 17a is arranged in the left screw hole 17, and a front limiting ring is arranged at the front end of the left bolt 17 a;
a middle screw hole 18 arranged in the middle of the rear end face of the rectangular shell 11, wherein a tightening bolt 18a is arranged in the middle screw hole 18;
the right screw hole 19 is formed in the right side of the rear end face of the rectangular shell 11, a right bolt 19a is arranged in the right screw hole 19, and a rear limiting ring is arranged in the middle of the right bolt 19 a;
the back roof device 2 includes:
the rear top base 21 is slidably inserted into the built-in cavity 12 in the front-back direction, a turntable insertion hole 21a which is through up and down is formed in the middle of the rear top base 21, a narrow-mouth insertion hole 21b is formed in the front end of the turntable insertion hole 21a, the rear top base 21 is respectively in insertion fit with the left bolt 17a and the right bolt 19a, and the rear top base 21 is located between the front limiting ring and the rear limiting ring;
a pair of connecting side arms 22 symmetrically arranged on the left side and the right side of the front end surface of the rear top base 21;
the rear top pressing plate 23 is arranged at the front ends of the pair of connecting side arms 22, and the rear top pressing plate 23 clamps the buckle belt body 5 together with the front end of the jacking transverse plate 13 when retreating;
the drive device 3 includes:
a rotating disk 31 rotatably provided in the turntable insertion hole 21 a;
an external screw rod 32 provided on the front end surface of the rotating disk 31 and passing through the narrow-mouth insertion hole 21 b;
a spring insertion hole 33 provided at the rear end of the external screw rod 32 and adapted to be inserted into the front end of the tightening bolt 18 a;
a compression spring 34 inserted into the spring insertion hole 33 and located in front of the tightening bolt 18 a;
the front jacking device 4 comprises a front jacking plate 41 which is slidably inserted in the built-in cavity 12 and is positioned between the pair of connecting side arms 22, and a driven screw hole 42 which is arranged in the front jacking plate 41 and is in threaded fit with the external thread rod 32;
the fixed end of the buckle belt body 5 is fixed below the rear end face of the rectangular shell 11, and the free end of the buckle belt body 5 penetrates through the fixed sliding ring 61.
The fixing device can be fixed after penetrating through the oxygen mask with the fixing sliding ring, and can also be used for fastening and fixing a common oxygen mask after being worn.
The fixing device of the medical oxygen mask can be suitable for the oxygen mask with the fixing sliding ring 61 and the mask body 6, the mask body 6 is worn at the mouth and nose part of a patient, and then the mask body is inserted on the fixing sliding ring 61 through the buckle belt body 5 to be wound and fixed. It is also possible to wear a common oxygen mask over the nose and mouth of a patient and then tighten the fixation directly using the fixation device.
For the oxygen mask with the fixed sliding ring 61 and the mask body 6, the use method comprises the following steps:
step 1, wearing a mask body 6:
the mask body 6 is worn at the mouth and nose part of a patient, the free end of the buckle belt body 5 is arranged around the head of the patient in a circle and penetrates through the front jack 15, and then the free end of the buckle belt body 5 is bent and inserted into the rear jack 14 in the opposite direction;
step 2, extruding and fixing the front jacking device 4:
step 2.1, temporary fixation in a normal state:
the compression spring 34 drives the driving device 3 and the rear jacking device 2 to move forwards until the rear jacking base 21 is clamped by a front limit ring on the left bolt 17a, at the moment, the positions of the driving device 3 and the rear jacking device 2 are temporarily fixed, and the compression spring 34 is pressed and deformed to generate an initial elastic force F;
step 2.2, the front jacking device 4 advances:
the finger rotates the rotating disc 31 through the upper opening 16 to drive the external screw rod 32 to rotate, the external screw rod 32 acts on the driven screw hole 42 to make the front top device 4 move away from the rear top device 2;
under a normal state, because the positions of the rear top device 2 and the driving device 3 are temporarily fixed, the front top device 4 moves forwards under the state, and the buckle belt body 5 is extruded and preliminarily abutted against the lower end face of the jacking transverse plate 13;
step 2.3, reaching a critical state:
the rotating disc 31 is continuously rotated to drive the external thread rod 32 to rotate, the front top device 4 continuously moves forwards to further continuously compress the buckle belt body 5, the reaction force applied to the front top device 4 is continuously increased until the reaction force is equal to the initial elastic force F of the compression spring 34, and the state is a critical state;
and 3, extruding and fixing the rear jacking device 2:
the rotating disc 31 is continuously rotated to drive the external thread rod 32 to rotate, the front jacking device 4 reaches a critical state and cannot continuously move forward, so that the rear jacking device 2 and the driving device 3 move back, and the rear jacking plate 23 abuts the buckle belt body 5 against the upper end face of the jacking transverse plate 13;
and step 4, resetting the device:
the rotating disc 31 is rotated reversely to drive the external thread rod 32 to rotate, so that the front top device 4 is driven to move close to the rear top device 2;
the rear jacking device 2 moves forwards until the rear jacking device abuts against the front limiting ring;
the front jacking device 4 moves backwards to reset.
Further, the method also comprises the following steps:
step 5, adjusting the jacking pressure:
and rotating the tightening bolt 18a to rotate and step along the tightening screw hole 18, so as to adjust the initial elastic force F of the compression spring 34 in a normal state and finally adjust the extrusion stress of the front jacking device 4 on the upper top of the buckle belt body 5 in a critical state.
Further, the method also comprises the following steps:
step 6, adjusting the stroke of the rear top pressure plate:
rotating the left bolt 17a to rotate and step along the left screw hole 17, so as to adjust the position of the front limiting ring and adjust the initial position of the rear jacking device 2 in a normal state;
and the right bolt 19a is rotated to rotate and step along the right screw hole 19, so that the position of the rear limiting ring is adjusted, and the position of the rearmost end of the rear jacking plate 23 is adjusted.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.