Filter device with replacement prompting function for breathing machine

Abstract

The utility model relates to the technical field of breathing machine filters, in particular to a breathing machine filter device with a replacement prompting function. According to the technical scheme, the breathing machine comprises a breathing machine main air pipe, a warning lamp and a filter element which are installed in a breathing machine, branch air pipes are installed on the breathing machine main air pipe, installation notches are formed in the branch air pipes and the breathing machine main air pipe, and the filter element is fixed to the installation notches. Electromagnetic three-way valves are fixed at the joints of the breathing machine main air pipe and the two ends of the branch air pipe, and differential pressure sensors are fixed on the breathing machine main air pipe and located on the outer sides of the electromagnetic three-way valves. According to the utility model, the pressure difference sensor can be used for detecting the pressure difference change before and after the filter element, if blockage occurs, the pressure difference is increased, and then the warning lamp is turned on for reminding, so that the filter element can be replaced in time, and normal gas circulation can be ensured through the conversion of the branch gas pipe under the condition that the filter element is not replaced in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a breathing machine filter technical field, concretely is a filter device for breathing machine with prompt replacement function. BACKGROUND

[0002] The breathing machine filter is a key component in the breathing machine system, and its main role is to purify the airflow, prevent the patient from inhaling the air that may contain bacteria, viruses, dust and other particulate matters, filter the air before it enters the breathing machine, and remove the particulate matters and microorganisms in the air.

[0003] And each breathing machine filter has its own service life, if the filter used for a long time is not replaced, bacteria will breed or the gas flow will be poor, and because of the different use occasions and use frequency of the breathing machine, the pollution degree of the filter will not be the same, so the filter needs to be replaced according to the actual pollution degree, instead of being replaced regularly, and in the case that the pollution degree is not clear, it is difficult to replace the filter in time and accurately, therefore, a filter structure that can be replaced in time and reminded is needed to be designed. SUMMARY

[0004] The utility model discloses a filter device for breathing machine with prompt replacement function is provided to solve the problem in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: including the breathing machine main gas pipe, warning light and filter core of installation in breathing machine, the breathing machine main gas pipe is installed with the branch gas pipe, is provided with the installation gap on the branch gas pipe and breathing machine main gas pipe, the filter core is fixed at the installation gap, the breathing machine main gas pipe and the branch gas pipe both ends junction are fixed with the electromagnetic three -way valve, the breathing machine main gas pipe and located the electromagnetic three -way valve outside fixed difference pressure sensor, the electromagnetic three -way valve is connected with difference pressure sensor electrically through the controller, the installation gap upper and lower ends are provided with the quick -mounting assembly that fixes the filter core.

[0006] Preferably, the quick-mounting assembly includes a bottom supporting plate and an extension tube, the bottom supporting plate is fixed at the bottom of the installation gap, the extension tube is slidably connected at the upper end of the installation gap, and the bottom is abutted with the upper end of the filter core, a threaded sleeve is peripherally screwed on the upper end of the installation gap, and the bottom of the threaded sleeve is peripherally fixed with the bottom of the extension tube.

[0007] Preferably, a positioning groove is formed at the upper end of the bottom supporting plate, and the size of the positioning groove is the same as that of the filter core.

[0008] Preferably, a fixing plate is fixed peripherally on the breathing machine main gas pipe and the branch gas pipe and above the threaded sleeve, and a fixing rod is slidably connected through the fixing plate.

[0009] Preferably, equidistant fixing holes are formed on the upper end of the threaded sleeve, the bottom of the fixing rod is inserted into the corresponding fixing hole, the upper end of the fixing rod is fixed with an end plate, and the fixing spring is fixed between the end plate and the fixing plate.

[0010] Preferably, the upper end of the telescopic pipe is inserted into the installation gap, and a sealing ring is arranged at the connection.

[0011] Compared with the prior art, the beneficial effects of the filter device for a breathing machine with a prompt replacement function are as follows: the differential pressure sensor can detect the differential pressure change before and after the filter element, if blockage occurs, the differential pressure increases, and then the warning light is lit to remind, so that the filter element can be replaced in time, and in the case that the filter element is not replaced in time, the conversion of the branch air pipe can ensure normal gas circulation. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front cut structure schematic view of the filter device for a breathing machine with a prompt replacement function.

[0013] Figure 2 It is a connection structure schematic view of the bottom supporting plate and the branch air pipe of the filter device for a breathing machine with a prompt replacement function.

[0014] Figure 3 It is a connection structure schematic view of the telescopic pipe and the branch air pipe of the filter device for a breathing machine with a prompt replacement function.

[0015] Figure 4 It is a combination structure schematic view of the threaded sleeve and the fixing rod of the filter device for a breathing machine with a prompt replacement function.

[0016] In the figure: 1, breathing machine main air pipe; 2, differential pressure sensor; 3, warning light; 4, branch air pipe; 5, electromagnetic three-way valve; 6, installation gap; 61, bottom supporting plate; 62, telescopic pipe; 63, sealing ring; 64, positioning groove; 7, filter element; 8, threaded sleeve; 81, fixing hole; 82, fixing plate; 83, fixing rod; 84, end plate; 85, fixing spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Please refer to Figures 1-4The utility model provides a technical scheme: including the breathing machine main gas pipe 1, warning light 3 and filter core 7 installed in breathing machine, is provided with branch bronchus 4 on breathing machine main gas pipe 1, branch bronchus 4 and breathing machine main gas pipe 1 all are provided with installation gap 6, filter core 7 is fixed at installation gap 6, breathing machine main gas pipe 1 and branch bronchus 4 both ends junction are fixed with electromagnetic three -way valve 5, and the outside fixed difference sensor 2 of electromagnetic three -way valve 5 is located in breathing machine main gas pipe 1 and difference sensor 2 electric connection with controller, and the upper and lower ends of installation gap 6 are provided with quick -mounting assembly for fixing filter core 7.

[0019] Quick -mounting assembly includes bottom supporting plate 61 and telescopic pipe 62, and bottom supporting plate 61 is fixed at the bottom of installation gap 6, and the upper end of telescopic pipe 62 is slidably connected to the upper end of installation gap 6, and the bottom is abutted with the upper end of filter core 7, and the upper end of installation gap 6 is peripherally connected with a threaded sleeve 8, and the bottom of the threaded sleeve 8 is peripherally fixed with the bottom of the telescopic pipe 62, and the upper end of the bottom supporting plate 61 is provided with a positioning groove 64, and the size of the positioning groove 64 is the same as the size of the filter core 7, and the upper end of the telescopic pipe 62 is inserted into the installation gap 6, and a sealing ring 63 is installed at the connection.

[0020] The outer periphery of breathing machine main gas pipe 1 and branch bronchus 4 and above threaded sleeve 8 are fixed with a fixed plate 82, a fixed rod 83 is slidably connected through the fixed plate 82, equidistant fixing holes 81 are formed in the upper end of the threaded sleeve 8, the bottom of the fixed rod 83 is inserted into the corresponding fixing hole 81, an end plate 84 is fixed to the upper end of the fixed rod 83, and a fixed spring 85 is fixed between the end plate 84 and the fixed plate 82.

[0021] Working principle: first, connect the whole device to the external power supply, wherein the gas flows through the breathing machine main gas pipe 1, passes through the filter core 7, realizes the purpose of gas purification, when the filter core 7 is not blocked, the airflow is smooth, the pressure difference on both sides of the filter core 7 is relatively small, when the filter core 7 is blocked, the pressure difference on both sides increases, therefore, the pressure difference can be detected by the pressure difference sensor 2, when the pressure difference increases to a preset value, the warning light 3 can be controlled to light up, thereby achieving the purpose of replacement reminder, at this time, if it is still not replaced in time, the electromagnetic three -way valve 5 can be controlled to make the gas flow into the branch bronchus, avoiding the blocked breathing machine main gas pipe 1, until the filter core 7 on the breathing machine main gas pipe 1 is replaced, then manually disconnect the warning light 3, when replacing the filter core 7, the threaded sleeve 8 can be rotated to move on the pipeline, at this time, upward movement can disconnect the extrusion and fixation of the filter core 7, the filter core 7 is easily taken out, otherwise, downward movement can extrude and fix the filter core 7, at the same time, the end plate 84 and the fixed rod 83 can be moved downward by pulling the fixed spring 85, until the bottom of the fixed rod 83 is inserted into the fixing hole 81, limiting the rotation of the threaded sleeve 8, thereby avoiding the loosening of the threaded sleeve 8.

[0022] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0023] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A filter device for a breathing apparatus having a replacement prompting function, comprising a breathing apparatus main pipe (1) installed in a breathing apparatus, a warning light (3) and a filter cartridge (7), characterized in that: The ventilator main air pipe (1) is provided with a branch air pipe (4), the branch air pipe (4) and the ventilator main air pipe (1) are provided with mounting notches (6), the filter element (7) is fixed at the mounting notches (6), the ventilator main air pipe (1) and the branch air pipe (4) are fixed with electromagnetic three-way valves (5) at the connecting positions of two ends, the ventilator main air pipe (1) is fixed with a differential pressure sensor (2) on the outside of the electromagnetic three-way valve (5), the electromagnetic three-way valve (5) is electrically connected with the differential pressure sensor (2) through a controller, and the mounting notches (6) are provided with quick-mounting assemblies for fixing the filter element (7) at the upper and lower ends.

2. The filter device for a breathing apparatus having a replacement prompting function according to claim 1, characterized in that: The quick-mounting assembly comprises a bottom supporting plate (61) and an elastic tube (62), the bottom supporting plate (61) is fixed at the bottom of the mounting notch (6), the elastic tube (62) is slidably connected at the upper end of the mounting notch (6), and the bottom is abutted with the upper end of the filter element (7), a threaded sleeve (8) is peripherally screwed at the upper end of the mounting notch (6), and the bottom of the threaded sleeve (8) is peripherally fixed with the bottom of the elastic tube (62).

3. The filter device for a breathing apparatus having a replacement prompting function according to claim 2, characterized in that: The upper end of the bottom supporting plate (61) is provided with a positioning groove (64), and the size of the positioning groove (64) is the same as that of the filter element (7).

4. The filter device for a breathing apparatus having a replacement prompting function according to claim 2, characterized in that: A fixing plate (82) is fixed at the periphery of the ventilator main air pipe (1) and the branch air pipe (4) and above the threaded sleeve (8), a fixing rod (83) is slidably connected through the fixing plate (82).

5. The filter device for a breathing apparatus having a replacement prompting function according to claim 4, characterized in that: Equidistant fixing holes (81) are formed at the upper end of the threaded sleeve (8), the bottom of the fixing rod (83) is inserted into the corresponding fixing hole (81), an end plate (84) is fixed at the upper end of the fixing rod (83), and a fixing spring (85) is fixed between the end plate (84) and the fixing plate (82).

6. The filter device for a breathing apparatus having a replacement prompting function according to claim 2, characterized by: The upper end of the elastic tube (62) is inserted into the mounting notch (6), and a sealing ring (63) is mounted at the connecting position.

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