Standby power type air supply long pipe respirator

Abstract

The utility model discloses a standby power type air supply long pipe respirator which comprises a respirator main machine and an air inlet chamber, the air inlet chamber is fixedly assembled at the upper right corner in the respirator main machine, a processing chamber is fixedly assembled at the lower left corner in the respirator main machine, and two sets of parallel air inlets are formed in the left side of the outer wall of the processing chamber. A group of negative pressure fans are fixed at the air inlets, a group of filter elements are fixedly clamped at the air inlets, and an automatic brushing mechanism used for cleaning the filter elements to prevent blockage from affecting breathing is arranged in the treatment chamber. According to the standby power type air supply long pipe respirator, by arranging the automatic cleaning and brushing mechanism, particulate matter is prevented from being attached into the filter elements to affect the air flow, it is guaranteed that one of the two sets of negative pressure fans can work smoothly when the respirator is used, and even if one set of filter elements is blocked, the other set of filter elements are not affected to be used; the influence of the blockage phenomenon in the working process on breathing safety is prevented, and the problem of blockage of the filter element is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of respirators, in particular to a power-backup air-supply long-tube respirator. Background Art

[0002] Power-operated, long-tube respirators are primarily used to provide clean, safe breathing air to personnel working in specialized environments, such as chemical plants, firefighting, and aerial work. The respirator's motor-driven fan filters outside air through a filter element and then delivers it to the respirator through a retractable long tube, providing the user with a continuous supply of clean air.

[0003] While powered, air-supply, long-tube respirators provide vital respiratory protection for workers, existing products suffer from several drawbacks. For example, the filter element is prone to clogging after prolonged operation, and since the filter element cannot be removed and cleaned while in operation, clogged by dust, particulate matter, or other factors directly impacts the proper functioning of the respirator, exposing the user to the risk of breathing difficulties. Current solutions often rely on regular filter replacement to prevent clogging. However, if the filter element becomes clogged in an emergency, the user may not be able to immediately address the problem, potentially endangering their lives.

[0004] Therefore, a kind of electric standby air supply long tube respirator is urgently needed to solve the technical defects proposed in the above technology. Utility Model Content

[0005] The purpose of the utility model is to provide a power-backup air supply long-tube respirator to solve the problem in the above background technology that the filter element cannot be disassembled and cleaned in the working state.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a long-tube respirator with electric standby air supply, comprising a respirator main body and an air inlet chamber, wherein the air inlet chamber is fixedly assembled in the upper right corner of the respirator main body, and the processing chamber is fixedly assembled in the lower left corner of the respirator main body, and two groups of parallel air inlets are opened on the left side of the outer wall of the processing chamber, a group of negative pressure fans are fixed at the air inlets, and a group of filter elements are fixedly connected at each of the air inlets, and an automatic cleaning mechanism for cleaning the filter element to prevent blockage affecting breathing is provided in the processing chamber, and the automatic cleaning mechanism comprises a servo motor, and the servo motor is fixedly assembled in the inner wall of the processing chamber, and the output shaft of the servo motor is fixedly connected to a linear screw, and a threaded block is sleeved on the outside of the linear screw, and the bottom end of the threaded block is fixedly assembled with a cylinder, and the output end of the cylinder is fixedly connected to a connecting seat through a piston rod, and the bottom end of the connecting seat is fixedly connected to a cleaning ring.

[0007] Preferably, a circle of brushes is distributed in an annular pattern on the inner wall of the cleaning ring, and the inner diameter of the cleaning ring is larger than the outer diameter of the filter element.

[0008] Preferably, one end of the filter element is connected and fixed to the air duct inlet, and the other end faces the air inlet.

[0009] Preferably, an air duct is connected between the processing chamber and the air inlet chamber, a solenoid valve is installed on the air duct, and a control switch for controlling the flow rate passing through the solenoid valve is provided on the right side of the outer wall of the respirator main unit.

[0010] Preferably, the output end of the air inlet chamber is fixed with a connecting buckle on the right side of the outer wall of the respirator main body, the connecting buckle is connected to a telescopic long tube, and the tube mouth of the telescopic long tube is connected to the breathing mask.

[0011] Preferably, a handle is welded on the left side of the respirator main unit, a heat insulation sleeve is sleeved on the top of the handle, and casters are installed at the four corners of the bottom end of the respirator main unit.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the electric standby air supply long tube respirator not only realizes automatic movement and cleaning of the filter element, thereby preventing blockage during operation from affecting breathing safety, thus reducing the cost of cleaning and maintenance and improving the maintainability of the device, but also realizes a segmented connection mode, thereby ensuring more efficient and safe operation of the telescopic long tube;

[0013] (1) The respirator is provided with a processing chamber in the main unit by providing a filter element, a linear screw, a threaded block, a cleaning ring, an air cylinder, and a servo motor. The external airflow sent in by the negative pressure fan is filtered by two sets of filter elements in the processing chamber before being sent to the breathing mask. Since the filter elements are often blocked, an automatic cleaning mechanism is provided in the processing chamber. When the main unit detects through the solenoid valve that the flow rate of the airflow discharged from the air duct is lower than the specified threshold, it means that the filter element in the processing chamber is blocked. At this time, the system sends a command to the servo motor. The servo motor drives the linear screw to rotate by stably outputting torque, and the threaded block sleeved on the outside thereof moves linearly, driving the cleaning ring at its bottom to move to the outside of a set of negative pressure fans. Then the air cylinder aligns the connecting seat with the filter element and pushes it out. The brush on the inner ring of the filter element cleans and removes dust back and forth along the axial direction of the filter element to prevent particulate matter from adhering to the filter element and affecting the air flow rate, thereby ensuring that one of the two sets of negative pressure fans can work smoothly when the respirator is in use. Even if one set of filter elements is blocked, it will not affect the use of the other set of filter elements, thereby preventing the blockage phenomenon during operation from affecting respiratory safety.

[0014] (2) By providing a negative pressure fan and filter element, the filter elements at the two sets of negative pressure fans can be automatically cleaned by the mobile cleaning of the automatic cleaning mechanism, without the need for frequent manual replacement of the filter elements, thus reducing the cost of cleaning and maintenance, thereby improving the maintainability of the device, modular assembly, and more targeted maintenance;

[0015] (3) The device is equipped with a processing chamber, an air inlet chamber, and a solenoid valve. The processing chamber and the air inlet chamber are separated in a segmented connection manner in the main body of the respirator. The flow is opened or closed by a solenoid valve in the middle. The external air flow enters the processing chamber for pretreatment and then enters the air inlet chamber, which can ensure that the telescopic long tube works more efficiently and safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the side cross-sectional structure of the processing chamber of the present invention;

[0018] Figure 3 This is a side view of the linear screw structure of the present utility model;

[0019] Figure 4 This is a side view of the cleaning ring structure of the present invention.

[0020] In the figure: 1. Breathing mask; 2. Telescopic long tube; 3. Connecting buckle; 4. Respirator main unit; 5. Air inlet chamber; 6. Handle; 7. Insulation sleeve; 8. Negative pressure fan; 9. Air inlet; 10. Casters; 11. Processing chamber; 12. Servo motor; 13. Air duct; 14. Solenoid valve; 15. Linear screw; 16. Thread block; 17. Cylinder; 18. Connecting seat; 19. Cleaning ring; 20. Filter element. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1-4, a power-backup air supply long-tube respirator, including a respirator main unit 4 and an air inlet chamber 5, the air inlet chamber 5 is fixedly assembled in the upper right corner of the respirator main unit 4, and the processing chamber 11 is fixedly assembled in the lower left corner of the respirator main unit 4, and two sets of parallel air inlets 9 are opened on the left side of the outer wall of the processing chamber 11, and a set of negative pressure fans 8 are fixed at the air inlets 9. A set of filter elements 20 are fixedly connected at each of the air inlets 9, and an automatic cleaning mechanism for cleaning the filter elements 20 to prevent blockage and affecting breathing is provided in the processing chamber 11. The automatic cleaning mechanism includes a servo motor 12, which is fixedly assembled on the inner wall of the processing chamber 11, and the output shaft of the servo motor 12 is fixedly connected to a linear screw 15, and a threaded block 16 is sleeved on the outside of the linear screw 15. The bottom end of the threaded block 16 is fixedly assembled with a cylinder 17, and the output end of the cylinder 17 is fixedly connected to a connecting seat 18 through a piston rod, and the bottom end of the connecting seat 18 is fixedly connected to a cleaning ring 19;

[0023] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the respirator is provided with a processing chamber 11 in the main unit. The external airflow sent in by the negative pressure fan 8 is filtered by two groups of filter elements 20 in the processing chamber 11 before being sent to the breathing mask 1. Since the filter elements 20 are often blocked, an automatic cleaning mechanism is provided in the processing chamber 11. When the main unit detects through the solenoid valve 14 that the flow rate of the air flow discharged from the air duct 13 is lower than the specified threshold, it means that the filter element 20 in the processing chamber 11 is blocked. At this time, the system sends a command to the servo motor 12. The servo motor 12 drives the linear screw 15 to rotate by outputting a stable torque. The threaded block 16 sleeved on its outside moves linearly, driving the cleaning ring 19 at its bottom end to move to the outside of one group of negative pressure fans 8. Then the cylinder 17 aligns the connecting seat 18 with the filter element 20 and pushes it out. The inner ring brush of the filter element 20 cleans and removes dust back and forth along the axial direction of the filter element 20 to prevent particles from adhering to the filter element 20 and affecting the air flow, thereby ensuring that one of the two groups of negative pressure fans 8 can work smoothly when the respirator is in use.

[0024] Example 2: A circle of brushes is distributed in an annular manner on the inner wall of the cleaning ring 19. The inner diameter of the cleaning ring 19 is larger than the outer diameter of the filter element 20. An air duct 13 is connected between the processing chamber 11 and the air inlet chamber 5. A solenoid valve 14 is installed on the air duct 13. A control switch for controlling the flow rate through the solenoid valve 14 is provided on the right side of the outer wall of the respirator main unit 4. A handle 6 is welded to the left side of the respirator main unit 4. An insulating sleeve 7 is sleeved on the top of the handle 6. Casters 10 are installed on the four corners of the bottom end of the respirator main unit 4.

[0025] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, through the mobile cleaning of the automatic cleaning mechanism, the filter elements 20 at the two groups of negative pressure fans 8 can be automatically cleaned, without the need for frequent manual removal and replacement of the filter elements 20.

[0026] Example 3: One end of the filter element 20 is connected to the inlet of the air duct 13 and fixed, and the other end is facing the air inlet 9. The output end of the air inlet chamber 5 is fixed with a connecting buckle 3 on the right side of the outer wall of the respirator main body 4. The connecting buckle 3 is connected to the telescopic long tube 2, and the tube end of the telescopic long tube 2 is connected to the breathing mask 1;

[0027] Specifically, if Figure 1 and Figure 2 As shown, the device adopts a segmented connection method, separating the processing chamber 11 and the air inlet chamber 5 in the respirator main unit 4, and opening or closing the flow through the electromagnetic valve 14 in the middle. The external airflow enters the processing chamber 11 and is pre-treated before entering the air inlet chamber 5.

[0028] Working principle: When the utility model is used, first, connect the breathing mask 1, the telescopic long tube 2 and the connection port 3, and then start the negative pressure fan 8 at the respirator host 4. After power is supplied, the respirator starts, and the external air flow sent in by the negative pressure fan 8 is filtered by the two sets of filter elements 20 in the processing chamber 11 and then sent to the breathing mask 1. The host detects the flow rate of the air discharged from the air duct 13 through the electromagnetic valve 14. When the host detects that the flow rate of the air discharged from the air duct 13 is lower than the specified threshold value through the electromagnetic valve 14, it means that the filter element 2 in the processing chamber 11 is 0 is blocked. At this time, the system sends a command to the servo motor 12. The servo motor 12 drives the linear screw 15 to rotate by stably outputting torque. The threaded block 16 sleeved on its outside moves linearly, driving the cleaning ring 19 at its bottom end to move to the outside of a group of negative pressure fans 8. Then the cylinder 17 aligns the connecting seat 18 with the filter element 20 and pushes it out. The brush on the inner circle of the filter element 20 moves back and forth along the axial direction of the filter element 20 to clean and remove dust, avoiding particulate matter adhering to the filter element 20 and affecting the air flow, ensuring that one of the two groups of negative pressure fans 8 can work smoothly when the respirator is in use.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A long-tube respirator with electric backup air supply, comprising a respirator main unit (4) and an air inlet chamber (5), characterized in that: An air inlet chamber (5) is fixedly mounted at the upper right corner of the respirator main unit (4), and a processing chamber (11) is fixedly mounted at the lower left corner of the respirator main unit (4). Two sets of parallel air inlets (9) are provided on the left side of the outer wall of the processing chamber (11). A set of negative pressure fans (8) are fixed at each of the air inlets (9). A set of filter elements (20) are fixedly mounted at each of the air inlets (9). An automatic cleaning mechanism for cleaning the filter elements (20) to prevent blockage and influence on breathing is provided in the processing chamber (11); The automatic cleaning mechanism comprises a servo motor (12), the servo motor (12) being fixedly mounted on the inner wall of the processing chamber (11), the output shaft of the servo motor (12) being fixedly connected to a linear screw (15), the outer portion of the linear screw (15) being sleeved with a threaded block (16), the bottom end of the threaded block (16) being fixedly mounted with a cylinder (17), the output end of the cylinder (17) being fixedly connected to a connecting seat (18) via a piston rod, and the bottom end of the connecting seat (18) being fixedly connected to a cleaning ring (19).

2. The electric-powered air-supply long-tube respirator according to claim 1, characterized in that: A circle of brushes is distributed in an annular manner on the inner wall of the cleaning ring (19), and the inner diameter of the cleaning ring (19) is larger than the outer diameter of the filter element (20).

3. The power-assisted air supply long tube respirator according to claim 1, characterized in that: One end of the filter element (20) is connected and fixed to the inlet of the air duct (13), and the other end faces the air inlet (9).

4. The electric-powered air-supply long-tube respirator according to claim 1, characterized in that: An air duct (13) is connected between the processing chamber (11) and the air inlet chamber (5), and a solenoid valve (14) is installed on the air duct (13). A control switch for controlling the flow rate of the solenoid valve (14) is provided on the right side of the outer wall of the respirator main unit (4).

5. The electric-powered air-supply long-tube respirator according to claim 1, characterized in that: The output end of the air inlet chamber (5) is fixed with a connecting buckle (3) on the right side of the outer wall of the respirator main unit (4), and the connecting buckle (3) is connected to a telescopic long tube (2), and the tube mouth of the telescopic long tube (2) is connected to the breathing mask (1).

6. The electric-powered air-supply long-tube respirator according to claim 1, characterized in that: A handle (6) is welded on the left side of the respirator main unit (4), a heat insulation sleeve (7) is sleeved on the top of the handle (6), and casters (10) are installed at the four corners of the bottom end of the respirator main unit (4).

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