CN110284942B - Breathing apparatus - Google Patents

Breathing apparatus Download PDF

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Publication number
CN110284942B
CN110284942B CN201910569525.XA CN201910569525A CN110284942B CN 110284942 B CN110284942 B CN 110284942B CN 201910569525 A CN201910569525 A CN 201910569525A CN 110284942 B CN110284942 B CN 110284942B
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CN
China
Prior art keywords
plate
respirator
air quality
quality information
memory
Prior art date
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Active
Application number
CN201910569525.XA
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Chinese (zh)
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CN110284942A (en
Inventor
卞明
姜斌
魏登惠
项达尚
张婧
殷志航
陆海峰
刘文斌
石路
游维华
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Shichuan Jule Innovation Technology Wuhan Co ltd
Jiangsu Jianghuai Power Co ltd
Original Assignee
Shichuan Jule Innovation Technology Wuhan Co ltd
Jiangsu Jianghuai Power Co ltd
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Application filed by Shichuan Jule Innovation Technology Wuhan Co ltd, Jiangsu Jianghuai Power Co ltd filed Critical Shichuan Jule Innovation Technology Wuhan Co ltd
Priority to CN201910569525.XA priority Critical patent/CN110284942B/en
Publication of CN110284942A publication Critical patent/CN110284942A/en
Application granted granted Critical
Publication of CN110284942B publication Critical patent/CN110284942B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • F02B77/08Safety, indicating or supervising devices

Abstract

The invention discloses a respirator, which comprises a respirator, wherein the back of the respirator is fixedly connected with a bottom plate, the left side, the right side, the top and the bottom of a plate body of the bottom plate are respectively provided with a sliding groove, an inner cavity of each sliding groove is connected with a fixing device in a sliding manner, each fixing device comprises a connecting plate, and one side, away from the bottom plate, of each connecting plate body is provided with a threaded hole. According to the invention, through the structural design between the chute and the bottom plate, the fixing device can move around the connecting plate, and through the structural design and the position relationship between the second return spring and the press block, a worker can conveniently extrude the press block to enable the two movable plates to move towards the center of the inner cavity of the connecting plate, so that the two movable plates can be inserted into the chute, the worker can conveniently connect or disassemble the fixing device and the connecting plate together, and the respirator can achieve the purpose of connecting different automobile crank cases together.

Description

Breathing apparatus
Technical Field
The invention relates to the technical field of novel respirators, in particular to a respirator.
Background
The respirator on the automobile engine is essentially a one-way valve, and the working principle is that the respirator is opened when waste gas pressure exists in an automobile crankcase, waste gas is discharged outwards, and the respirator is closed when no pressure exists, so that the crankcase keeps negative pressure, engine oil is not easy to leak, and the respirator can not discharge the engine oil into a cylinder sleeve, and is mainly used for preventing the engine oil from leaking and preventing the engine oil from deteriorating.
Current respirator is when installing, generally all be in the same place through welded threaded connection plate on the respirator base and crankcase threaded connection, but the respirator need be changed after carrying out long-time use, and present respirator all need the staff to take off the screw on connecting the respirator again and change when changing, unusual inconvenient, the position of welded threaded connection plate is probably different with the screw hole position on the crankcase on the respirator that is new simultaneously, thereby make the staff need punch again and install, unusual inconvenient.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a respirator.
The invention relates to a respirator, which comprises a respirator, wherein the back of the respirator is fixedly connected with a bottom plate, sliding grooves are respectively formed in the left side, the right side, the top and the bottom of a bottom plate body of the bottom plate, an inner cavity of each sliding groove is connected with a fixing device in a sliding manner, one side of the connecting plate body, which is far away from the bottom plate, is provided with a threaded hole, the front side and the back side of the connecting plate body, which are close to the bottom plate, are respectively provided with a sliding groove, a pressing block is connected in the sliding groove body in a sliding manner, one side of the pressing block, which is close to the inner cavity of the connecting plate, is fixedly connected with a movable plate, one side of the movable plate, which is close to the center of the inner cavity of the connecting plate, is fixedly connected with second reset springs along the horizontal direction at equal intervals, connecting, one side of the sliding plate, which is far away from the first return spring, is fixedly connected with a first magnet block.
According to the respirator, the second magnet block is fixedly connected to the plate body, which is close to one side of the sliding groove and located in the inner cavity of the connecting groove, and the shape and the size of the side face of the second magnet block are matched with those of the side face of the connecting groove.
According to the respirator, the two movable plates in the inner cavity of the connecting plate are connected with the sliding groove in a sliding mode, and the plate body, close to one side of the bottom plate, of the connecting plate is provided with the opening facilitating the movable plates to move up and down.
The shape and size of the side surface of the sliding plate are matched with the shape and size of the side surface of the connecting groove, the shape and size of the side surface of the first magnet block are matched with the shape and size of the side surface of the connecting groove, and the first magnet block and the second magnet block are mutually adsorbed together.
The respirator is characterized in that the front face of the connecting plate is a plate with a rectangular plate body on one side close to the bottom plate and a semicircular plate on one side far away from the bottom plate, and the width of the side face of the connecting plate is the same as that of the side face of the sliding groove.
The respirator of the invention is characterized in that the shape of the front face of the sliding groove is matched with the shape of the plane of the pressing block in a plan view, and the length of the front face of the sliding groove is one third of that of the connecting plate.
The respirator of the invention is characterized in that the length of the side surface of the connecting groove is the same as that of the side surface of the sliding groove.
The respirator comprises a monitoring device, a monitoring device and a control device, wherein the monitoring device is arranged at an air escape opening of the respirator;
the monitoring device comprises an air quality sensor, a controller, a memory and a wireless communication module; the controller is electrically connected with the air quality sensor, the memory and the wireless communication module;
the air quality sensor is used for acquiring air quality information of gas at an air escape opening of the respirator and transmitting the air quality information to the controller; the controller is used for transmitting and storing the air quality information to the memory; the controller is also used for transmitting the air quality information to electronic equipment at a staff position through the wireless communication module for displaying;
the wireless communication module comprises one or more of a WiFi communication module, a 4G communication module and a Bluetooth communication module;
the electronic equipment comprises one or more of a smart phone, a personal computer or a palm computer with a communication function.
The respirator of the invention, wherein the memory is used for acquiring time information when the memory receives the air quality information through a timer when the air quality information transmitted by the controller is received;
the memory is further used for creating a file storage area with the same size as the file of the air quality information from the memory according to the file size of the air quality information and storing the air quality information in the file storage area; the memory is also used for taking the acquired time information as the file name of the file storage area;
the memory is also used for encrypting the air quality information in the file storage area according to an encryption algorithm preset in the memory and storing the air quality information;
the encryption algorithm comprises one or more of a symmetric encryption algorithm and a digital signature encryption algorithm.
According to the respirator, the intelligent inspection device is arranged on the outer surface of the respirator, and can automatically judge whether the respirator is abnormal or not, and an alarm is given out if the respirator is abnormal, wherein the inspection specifically comprises the following steps:
the intelligent inspection device is provided with a sound receiving device, a sound preprocessing device and an abnormity inspection device;
firstly, the sound collecting device obtains the sound of the respirator with a preset time length during working and transmits the sound to the sound preprocessing device;
the sound preprocessing device counts the total frame number P of the sound transmitted by the sound receiving device, obtains the values of a first audio and a second audio of each frame and forms a matrix A, the matrix A is a value of P rows and 2 columns, the matrix A is substituted into a formula (1), interference elimination is carried out, and an elimination matrix B is obtained;
wherein, Bi,tIs the value of the ith row and t column of the matrix B, i.e. for Ai,tValue after interference rejection, Ai,tThe value of the ith row and the t column of the matrix A is represented by pi, the circumferential rate is represented by e, i is 1, 2 and 3 … … P, and t is 1 and 2;
substituting the matrix B into a formula (2), and calculating an adjusting coefficient;
rtin order to solve the adjustment coefficient of the t-th column of the obtained matrix B, t is 1 and 2;
then, obtaining a sound preprocessing vector C by using a formula (3);
wherein, CiIs the ith value of vector C, SiAs an intermediate parameter, Bi,1Is the value of the ith row and 1 st column of the matrix B, Bi,2The value of the ith row and the 2 nd column of the matrix B, min () is the minimum value in the solving bracket, max () is the maximum value in the solving bracket, and i is 1, 2, 3 … …;
transmitting the sound preprocessing vector C to the abnormality checking device;
in the abnormity detection device, a preset detection vector D exists, the number of the intermediate values of the vector D is P, and the vector C and the vector D are substituted into a formula (4) to obtain a detection result;
wherein rt is the test result obtained, DiFor the ith value of the vector D,
if the rt is greater than 0.5, the respirator is judged to be abnormal, an early warning is sent out, and if the rt is less than or equal to 0.5, the respirator is judged not to be abnormal.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the novel respirator, through the structural design between the sliding groove and the bottom plate, the fixing device can move around the connecting plate, and meanwhile through the structural design and the position relation between the second reset spring and the pressing block, a worker can conveniently extrude the pressing block to enable the two movable plates to move towards the center of the inner cavity of the connecting plate, so that the two movable plates can be inserted into the sliding groove, the fixing device and the connecting plate can be conveniently connected or detached by the worker, and the novel respirator can be connected with different automobile crank cases.
2. According to the novel respirator, through the structural design of the shape and the position between the connecting groove in the connecting plate and the second magnet on the movable plate, a worker can insert the second magnet into the connecting groove, meanwhile, through the design between the first magnet block in the connecting groove and the second magnet block on the movable plate, the movable plate can be fixed in the inner cavity of the connecting plate, and through the structural design of the threaded hole in the connecting plate, the worker can connect the fixing device with the automobile crankcase through a bolt, so that the novel respirator can achieve the purpose of facilitating installation of the worker.
3. According to the novel respirator, due to the structural design between the pressing block and the sliding groove, a worker can conveniently slide the pressing block to drive the movable plate to slide left and right in the connecting plate, so that the movable plate can be retracted into the inner cavity of the connecting plate, the worker can conveniently store the novel respirator when the worker does not use the fixing device, and the novel respirator can achieve the purpose of facilitating the storage and carrying of the worker.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a side cross-sectional structural view of the fastening device of the present invention;
FIG. 4 is a schematic side view of the connection structure of the base plate and the fixing device according to the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 at A according to the present invention;
FIG. 6 is a front view of the fixing device of the present invention;
fig. 7 is a schematic structural diagram of the controller of the present invention.
In the figure: 1. a respirator; 2. a base plate; 3. a fixing device; 31. a connecting plate; 32. a sliding groove; 33. briquetting; 34. a movable plate; 35. a second return spring; 36. a second magnet block; 37. a threaded hole; 4. a chute; 5. a first magnet block; 6. a first return spring; 7. a sliding plate; 8. and connecting the grooves.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention is shown in figures 1-6, a respirator comprises a respirator 1, a bottom plate 2 is fixedly connected to the back of the respirator 1, sliding grooves 4 are respectively arranged on the left side, the right side, the top and the bottom of a plate body of the bottom plate 2, a fixing device 3 is slidably connected to an inner cavity of each sliding groove 4, each fixing device 3 comprises a connecting plate 31, a threaded hole 37 is formed in one side of the plate body of each connecting plate 31, which is far away from the bottom plate 2, sliding grooves 32 are respectively formed in the front and the back of one side of the plate body of each connecting plate 31, a pressing block 33 is slidably connected to the groove body of each sliding groove 32, a movable plate 34 is fixedly connected to one side of each pressing block 33, which is close to the inner cavity of each connecting plate 31, second return springs 35 are fixedly connected to one side of each movable plate 34, which is close, one side of the inner cavity of the connecting groove 8, which is far away from the movable plate 34, is fixedly connected with a first return spring 6 along the horizontal direction at equal intervals, one side of the first return spring 6, which is far away from the bottom plate 2, is fixedly connected with a sliding plate 7, and one side of the sliding plate 7, which is far away from the first return spring 6, is fixedly connected with a first magnet block 5.
The movable plate 34 is close to one side of the sliding groove 4 and is located on the plate body of the inner cavity of the connecting groove 8, a second magnet block 36 is fixedly connected to the side surface of the second magnet block 36, the shape and the size of the side surface of the second magnet block 36 and the shape and the size of the side surface of the connecting groove 8 are matched, and the design is beneficial to the fact that the second magnet block 36 can be inserted into the inner cavity of the connecting groove 8.
Two movable plates 34 in the inner cavity of the connecting plate 31 are both connected with the sliding groove 4 in a sliding manner, an opening facilitating the movable plates 34 to move up and down is formed in the plate body of the connecting plate 31 on the side close to the bottom plate 2, and the design is beneficial to the movable plates 34 to move up and down in the inner cavity of the connecting plate 31.
The shape and size of sliding plate 7 side and the shape and size of spread groove 8 side agree with each other, and the shape and size of first magnet piece 5 side and the shape and size of spread groove 8 side agree with each other and first magnet piece 5 adsorbs together with second magnet piece 36 each other, and this design is favorable to second magnet piece 36 to can reciprocate in the inner chamber of spread groove 8.
The front surface of the connecting plate 31 is a plate with a rectangular plate body at one side close to the bottom plate 2 and a semicircular plate at one side far away from the bottom plate 2, the width of the side surface of the connecting plate 31 is the same as that of the side surface of the sliding groove 4, and the design is beneficial to ensuring that the use of the respirator 1 cannot be influenced after the connecting plate 31 is inserted into the inner cavity of the sliding groove 4.
The shape of the front surface of the sliding groove 32 is matched with the shape of the top surface of the pressing block 33, the length of the front surface of the sliding groove 32 is one third of the length of the front surface of the connecting plate 31, and the design is beneficial to the fact that the pressing block 33 can slide left and right in the sliding groove 32.
The length of the side of the connecting groove 8 is the same as the length of the side of the sliding groove 4, which is advantageous in that the fixing means 3 can be fixed at any position on the connecting groove 8.
When the invention is used, firstly, by observing the threaded connection hole on the automobile crankcase, a fixing device 3 with a proper length is selected, the movable plates 34 are moved to the outer side of the connection plate 31 from the inner cavity of the connection plate 31 by pushing the pressing block 33, meanwhile, a worker can move the two movable plates 34 in the connection plate 31 to the center of the inner cavity of the connection plate 31 by pinching the pressing block 33 on the connection plate 31, so that the distance between the two movable plates 34 is shortened to be smaller than the size of the notch of the chute 4 on the connection plate 31, then the movable plates 34 are inserted into the inner cavity of the chute 4, the connection plate 31 is slid to a required position by sliding the connection plate 31 left and right, then the pressing block 33 is released to enable the two movable plates 34 to return to the original position under the action of the second return spring 35, and meanwhile, the second magnet blocks 36 on the movable plates 34 can be inserted into the, simultaneously first reset spring 6 in the spread groove 8 can promote first magnet piece 5 and second magnet piece 36 and adsorb together mutually to make fixing device 3 can fix in the bottom plate 2 of respirator 1 bottom, make the threaded hole 37 on the connecting plate 31 can correspond mutually with the threaded connection mouth on the automobile crankcase together, thereby make this novel respirator can reach the purpose that makes things convenient for the staff to install.
In one embodiment, further comprising:
the monitoring device is arranged at an air escape opening of the respirator;
the monitoring device comprises an air quality sensor, a controller, a memory and a wireless communication module; the controller is electrically connected with the air quality sensor, the memory and the wireless communication module;
the air quality sensor is used for acquiring air quality information of gas at an air escape opening of the respirator and transmitting the air quality information to the controller; the controller is used for transmitting the air quality information to the memory for storage; the controller is also used for transmitting the air quality information to the electronic equipment at the staff through the wireless communication module for display; according to the technical scheme, the air quality of the gas at the gas escape opening of the respirator is monitored through the air quality sensor of the monitoring device, and the real-time transmission to electronic equipment of workers is realized through the first controller and the wireless communication module, so that the workers can acquire the air quality information of the gas at the gas escape opening of the respirator in real time; and through the memory, the storage of the air quality information acquired by the air quality sensor is realized, and the query and the acquisition of the air quality information of the gas at the gas escape opening of the respirator, which is monitored by a monitoring device, by a worker are facilitated.
The wireless communication module comprises one or more of a WiFi communication module, a 4G communication module and a Bluetooth communication module; according to the technical scheme, the communication function of the monitoring device is realized through various communication modes.
Electronic equipment, including one or more of a smartphone, a personal computer, or a palm-top computer with communications capabilities. According to the technical scheme, the air quality information transmitted by the monitoring device can be acquired by workers through various devices.
In one embodiment, the memory is used for acquiring time information when the air quality information is received by the memory through the timer when the air quality information transmitted by the controller is received;
the memory is also used for creating a file storage area with the same size as the file of the air quality information from the memory according to the size of the file of the air quality information and storing the air quality information in the file storage area; the memory is also used for taking the acquired time information as the file name of the file storage area;
the memory is also used for encrypting the air quality information in the file storage area according to a preset encryption algorithm in the memory and storing the information; in the technical scheme, the memory creates a file storage area according to the file size of the air quality information and stores the air quality information in the file storage area; the time information acquired by the timer is used as the file name of the file storage area, so that the air quality information transmitted by the controller is stored, the time information is used as the file name of the file storage area, and the air quality information can be conveniently inquired and acquired by workers based on the memory.
And encryption algorithms, including one or more of symmetric encryption algorithms and digital signature encryption algorithms. According to the technical scheme, the air quality information in the memory is encrypted and stored through various encryption algorithms.
In a specific embodiment, as shown in fig. 7, the controller includes a main control chip, the model of the main control chip is STC12C5608AD, a capacitor C1 is connected in parallel with a resistor R1, a pin 3 of the main control chip is connected in series with a capacitor C1 and a resistor R1, the capacitor C4 is connected to a VCC power supply, a pin 16 of the main control chip is grounded, pins 7 and 8 of the main control chip are connected in series with a capacitor CY1, a capacitor C2 and a capacitor C3 respectively, a connection between the capacitor C2 and the capacitor C3 is grounded, a capacitor C2 and a capacitor C3 are connected in series, a capacitor CY1 is connected in parallel with a capacitor C2 and a capacitor C3, pins 29, 30 and 31 of the main control chip are connected in series with an LED1, an LED2 and an LED3 through a resistor R9, a resistor R3 and a resistor R4 respectively, and the LED1, the LED;
the controller also comprises a power supply circuit; the power supply unit comprises a 220V power supply; the 220V power supply is connected with an electric bridge D1 in series, one end of the electric bridge D1 is grounded, the other end of the electric bridge D1 is connected with a voltage stabilizing chip, one end of the voltage stabilizing chip is grounded, and the other end of the voltage stabilizing chip is connected with a main control chip; the capacitors C4, C5, C6 and C7 are connected with the voltage stabilizing chip in parallel. The function of the controller is realized through the technical scheme.
In one embodiment, an intelligent inspection device is arranged on the outer surface of the respirator, and can automatically judge whether the respirator is abnormal or not, and send out an alarm if the respirator is abnormal, wherein the specific steps of the inspection are as follows:
the intelligent inspection device is provided with a sound receiving device, a sound preprocessing device and an abnormity inspection device;
firstly, the sound collecting device obtains the sound of the respirator with a preset time length during working and transmits the sound to the sound preprocessing device;
the sound preprocessing device counts the total frame number P of the sound transmitted by the sound receiving device, obtains the values of a first audio and a second audio of each frame and forms a matrix A, the matrix A is a value of P rows and 2 columns, the matrix A is substituted into a formula (1), interference elimination is carried out, and an elimination matrix B is obtained;
wherein, Bi,tIs the value of the ith row and t column of the matrix B, i.e. for Ai,tValue after interference rejection, Ai,tThe value of the ith row and the t column of the matrix A is represented by pi, the circumferential rate is represented by e, i is 1, 2 and 3 … … P, and t is 1 and 2;
substituting the matrix B into a formula (2), and calculating an adjusting coefficient;
rtin order to solve the adjustment coefficient of the t-th column of the obtained matrix B, t is 1 and 2;
then, obtaining a sound preprocessing vector C by using a formula (3);
wherein, CiIs the ith value of vector C, SiAs an intermediate parameter, Bi,1Is the value of the ith row and 1 st column of the matrix B, Bi,2The value of the ith row and the 2 nd column of the matrix B, min () is the minimum value in the solving bracket, max () is the maximum value in the solving bracket, and i is 1, 2, 3 … …;
transmitting the sound preprocessing vector C to the abnormality checking device;
in the abnormity detection device, a preset detection vector D exists, the number of the intermediate values of the vector D is P, and the vector C and the vector D are substituted into a formula (4) to obtain a detection result;
wherein rt is the test result obtained, DiFor the ith value of the vector D,
if the rt is greater than 0.5, the respirator is judged to be abnormal, an early warning is sent out, and if the rt is less than or equal to 0.5, the respirator is judged not to be abnormal.
By means of the technology, the sound of the respirator during working can be acquired through the intelligent inspection device, whether the respirator is abnormal or not can be quickly inspected, if the respirator is abnormal, early warning is conducted, in the judgment process, the acquired sound can be eliminated by using the formula (1), so that the detection result can be accurately obtained in the later judgment process, the first audio and the second audio can be subjected to coefficient adjustment according to the respective characteristics of the audio by using the formula (2) and the formula (3), a sound preprocessing vector is formed, the vector has more characteristics, meanwhile, the calculated amount can be greatly reduced, and whether the respirator is abnormal or not can be accurately judged by using the formula (4).
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (9)

1. A respirator comprising a respirator (1), characterized in that: the back of the respirator (1) is fixedly connected with a bottom plate (2), the left side, the right side, the top and the bottom of a plate body of the bottom plate (2) are respectively provided with a sliding groove (4), an inner cavity of the sliding groove (4) is slidably connected with a fixing device (3), the fixing device (3) comprises a connecting plate (31), one side, away from the bottom plate (2), of the plate body of the connecting plate (31) is provided with a threaded hole (37), the front and the back of one side, close to the bottom plate (2), of the plate body of the connecting plate (31) are respectively provided with a sliding groove (32), a pressing block (33) is slidably connected in the groove body of the sliding groove (32), one side, close to the inner cavity of the connecting plate (31), of the pressing block (33) is fixedly connected with a movable plate (34), one side, close to the center of, connecting grooves (8) are formed in the inner cavity of the bottom plate (2) and the plate body positioned on the front side and the back side of the sliding groove (4), one side, far away from the movable plate (34), of the inner cavity of each connecting groove (8) is fixedly connected with a first return spring (6) at equal intervals along the horizontal direction, one side, far away from the bottom plate (2), of each first return spring (6) is fixedly connected with a sliding plate (7), and one side, far away from the first return spring (6), of each sliding plate (7) is fixedly connected with a first magnet block (5);
further comprising:
the outer surface of the respirator is provided with an intelligent inspection device, the intelligent inspection device can automatically judge whether the respirator is abnormal or not, if so, an alarm is given out, wherein the specific steps of the inspection are as follows:
the intelligent inspection device is provided with a sound receiving device, a sound preprocessing device and an abnormity inspection device;
firstly, the sound collecting device obtains the sound of the respirator with a preset time length during working and transmits the sound to the sound preprocessing device;
the sound preprocessing device counts the total frame number P of the sound transmitted by the sound receiving device, obtains the values of a first audio and a second audio of each frame and forms a matrix A, the matrix A is a value of P rows and 2 columns, the matrix A is substituted into a formula (1), interference elimination is carried out, and an elimination matrix B is obtained;
wherein, Bi,tIs the value of the ith row and t column of the matrix B, i.e. for Ai,tValue after interference rejection, Ai,tThe value of the ith row and the t column of the matrix A is represented by pi, the circumferential rate is represented by e, i is 1, 2 and 3 … … P, and t is 1 and 2;
substituting the matrix B into a formula (2), and calculating an adjusting coefficient;
rtin order to solve the adjustment coefficient of the t-th column of the obtained matrix B, t is 1 and 2;
then, obtaining a sound preprocessing vector C by using a formula (3);
wherein, CiIs the ith value of vector C, SiAs an intermediate parameter, Bi,1Is the value of the ith row and 1 st column of the matrix B, Bi,2The value of the ith row and the 2 nd column of the matrix B, min () is the minimum value in the solving bracket, max () is the maximum value in the solving bracket, and i is 1, 2, 3 … …;
transmitting the sound preprocessing vector C to the abnormality checking device;
in the abnormity detection device, a preset detection vector D exists, the number of the intermediate values of the vector D is P, and the vector C and the vector D are substituted into a formula (4) to obtain a detection result;
wherein rt is the test result obtained, DiFor the ith value of the vector D,
if the rt is greater than 0.5, the respirator is judged to be abnormal, an early warning is sent out, and if the rt is less than or equal to 0.5, the respirator is judged not to be abnormal.
2. A respirator as claimed in claim 1, wherein: fly leaf (34) are close to spout (4) one side and are located the board of spread groove (8) inner chamber and go up fixedly connected with second magnet piece (36), the shape and the size of second magnet piece (36) side and the shape and the size of spread groove (8) side agree with mutually.
3. A respirator as claimed in claim 1, wherein: two movable plates (34) in the inner cavity of the connecting plate (31) are connected with the sliding groove (4) in a sliding mode, and an opening which is convenient for the movable plates (34) to move up and down is formed in the plate body, close to one side of the bottom plate (2), of the connecting plate (31).
4. A respirator as claimed in claim 1, wherein: the shape and the size of the side face of the sliding plate (7) are matched with the shape and the size of the side face of the connecting groove (8), the shape and the size of the side face of the first magnet block (5) are matched with the shape and the size of the side face of the connecting groove (8), and the first magnet block (5) and the second magnet block (36) are mutually adsorbed together.
5. A respirator as claimed in claim 1, wherein: the front surface of the connecting plate (31) is a plate with a rectangular plate body at one side close to the bottom plate (2) and a semicircular plate at one side far away from the bottom plate (2), and the width of the side surface of the connecting plate (31) is the same as that of the side surface of the sliding groove (4).
6. A respirator as claimed in claim 1, wherein: the shape of the front face of the sliding groove (32) is matched with the shape of the plane of the pressing block (33), and the length of the front face of the sliding groove (32) is one third of that of the front face of the connecting plate (31).
7. A respirator as claimed in claim 1, wherein: the length of the side surface of the connecting groove (8) is the same as that of the side surface of the sliding groove (4).
8. A respirator as claimed in claim 1, wherein: further comprising:
the monitoring device is arranged at an air escape opening of the respirator;
the monitoring device comprises an air quality sensor, a controller, a memory and a wireless communication module; the controller is electrically connected with the air quality sensor, the memory and the wireless communication module;
the air quality sensor is used for acquiring air quality information of gas at an air escape opening of the respirator and transmitting the air quality information to the controller; the controller is used for transmitting and storing the air quality information to the memory; the controller is also used for transmitting the air quality information to electronic equipment at a staff position through the wireless communication module for displaying;
the wireless communication module comprises one or more of a WiFi communication module, a 4G communication module and a Bluetooth communication module;
the electronic equipment comprises one or more of a smart phone, a personal computer or a palm computer with a communication function.
9. A respirator as claimed in claim 8, wherein:
the memory is used for acquiring time information when the memory receives the air quality information through a timer when the air quality information transmitted by the controller is received;
the memory is further used for creating a file storage area with the same size as the file of the air quality information from the memory according to the file size of the air quality information and storing the air quality information in the file storage area; the memory is also used for taking the acquired time information as the file name of the file storage area;
the memory is also used for encrypting the air quality information in the file storage area according to an encryption algorithm preset in the memory and storing the air quality information;
the encryption algorithm comprises one or more of a symmetric encryption algorithm and a digital signature encryption algorithm.
CN201910569525.XA 2019-06-27 2019-06-27 Breathing apparatus Active CN110284942B (en)

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