Medical first-aid breathing machine

Abstract

The invention discloses a medical first-aid breathing machine. The medical first-aid breathing machine comprises a movable frame, a breathing machine body and a heat dissipation assembly. Cooling water in the water tank is guided into the heat exchange pipe through the pump body for heat exchange work, the situation that the using performance of electronic elements in the breathing machine is affected by excessive heat is avoided, after the cooling water in the water tank enters the heat exchange pipe and a winding pipe, the water tank is lightened, and under the action of a reset spring, a transverse plate moves upwards, so that the cooling water in the water tank is cooled. The transverse plate drives the water tank to move upwards through the support, the water tank drives the T-shaped sliding blocks to slide in the T-shaped sliding grooves, the transverse plate drives the dust cleaning brush plate to move upwards through the guide columns, after cooling water returns to the interior of the water tank, the weight of the water tank is increased, the water tank drives the dust cleaning brush plate to move downwards through the support, the transverse plate and the guide columns, and the process is repeated. And the dust cleaning brush plate moves up and down to clean the dust screen in the ventilation hole, so that the dust is prevented from being accumulated to block the dust screen and affect ventilation and heat dissipation work.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilators, and in particular to a medical emergency ventilator. Background Art

[0002] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation function, have been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support therapy and emergency resuscitation. They occupy a very important position in the field of modern medicine. Ventilators are a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

[0003] The Chinese invention patent with the authorization announcement number CN107335118A discloses a ventilator for solving the technical problem of assisting breathing for patients, which includes an air source, an oxygen mixing system, a sterilization system, a humidification system, a respiratory power system, a respiratory implant system and a control system; the beneficial effects of the invention are as follows: the invention has a high reliability and intelligence level, and can realize the auxiliary breathing function for patients. In addition to the ventilation function of exhalation and inhalation, the respiratory implant system can also realize the air pressure detection function and sewage discharge function in the respiratory tract. The sterilization system and the humidification system can sterilize and humidify the gas before entering the respiratory tract, respectively, to ensure that the gas entering the respiratory tract meets the humidity and cleanliness requirements. The oxygen mixing system can achieve full mixing of oxygen and air, and maintain the air pressure of the mixed gas at a stable level;

[0004] The Chinese invention patent with authorization announcement number CN108578853A discloses a medical emergency ventilator, including a circuit control board, a main valve, an oxygen concentration regulating valve, a valve seat, an oxygen tube, a ventilation module and a breathing module. The circuit control board is arranged horizontally, and the circuit control board is used to control the circuit of the entire system; the main valve and the oxygen concentration regulating valve are both installed on the valve seat and connected to the circuit control board through a line and are located on the right side of the circuit control board; the oxygen tube is connected to the bottom of the valve seat, and the oxygen tube is used to pass oxygen into the device; the ventilation module is located on the right side of the oxygen tube, and the ventilation module is used to pass gas into the human lungs; the breathing module is located on the right side of the ventilation module, and the breathing module is used to adjust the breathing process of the human lungs. The present invention is mainly used for breathing emergency treatment of patients in dangerous situations, and the safety and comfort of the device can be greatly improved by setting a filter and a heating plate.

[0005] The Chinese invention patent with authorization announcement number CN115317745B discloses an emergency ventilator device for a medical hyperbaric oxygen chamber, including a cabin body and a ventilator housing and a mask arranged in the cabin body. A recessed slide is provided on the top of the inner wall of the cabin body, and a movable seat is slidably connected in the slide. An arc-shaped hanger is hinged at the bottom of the movable seat, and a slide seat is slidably connected on the arc-shaped hanger, and the ventilator housing is fixed on the slide seat; a pumping mechanism with adjustable oxygen delivery is provided in the ventilator housing, and the pumping mechanism is used to establish a breathing mechanism for the patient, and the pumping mechanism is connected to the mask through a pipeline; a disinfection mechanism is provided in the ventilator housing, and the pumping mechanism drives the disinfection mechanism to disinfect the exhaust gas discharged from the mask while pumping oxygen into the mask and then discharges it; a negative pressure adsorption mechanism is provided on the mask, and the disinfection mechanism drives the negative pressure adsorption mechanism to firmly fix the mask on the patient's face by using the pressure difference while disinfecting the exhaust gas discharged from the mask.

[0006] The ventilator in the above patent will generate heat during use. Excessive heat will affect the performance of the electronic components inside the ventilator. Currently, ventilation and heat dissipation are usually carried out through a cooling fan, which has a general heat dissipation effect and cannot utilize the generated heat, resulting in a waste of resources. In addition, it is inconvenient to clean the dust on the dustproof net inside the ventilation hole. Summary of the invention

[0007] The purpose of the present invention is to provide a medical emergency ventilator, which solves the problem that the ventilator generates heat during use. Excessive heat will affect the performance of electronic components inside the ventilator. At present, ventilation and heat dissipation are usually carried out through a cooling fan, and the heat dissipation effect is general. The generated heat cannot be utilized, resulting in a waste of resources, and the dust on the dustproof net inside the ventilation hole is inconvenient to clean.

[0008] The present invention solves the above technical problems through the following technical solutions, which include:

[0009] A mobile frame, wherein a self-locking wheel is installed at the bottom of the mobile frame and a positioning structure is installed at the top of the mobile frame;

[0010] A ventilator body, the ventilator body is mounted on the top of the mobile frame, a disinfection filtration structure is installed inside the ventilator body, and an ultraviolet sterilization column is installed on the top of the ventilator body;

[0011] A heat dissipation component, which is installed inside the ventilator body and is used to dissipate heat from the ventilator body, utilize the generated heat, and clean the filter screen;

[0012] The heat dissipation component comprises a reflux structure installed on the back side of the ventilator body, a heat exchange pipe installed inside the ventilator body, a heat utilization structure installed inside the ultraviolet sterilization column, and a dust removal structure installed inside the ventilator body.

[0013] Preferably, a T-shaped groove is provided on the back side of the ventilator body, and the reflux structure includes a water tank and a cooling box inside the T-shaped groove slidably connected by a T-shaped slider and a pump body installed on one side of the water tank by bolts. The water tank is connected to the cooling box through a pipe, and a cooling structure is installed inside the cooling box.

[0014] Preferably, a heat exchange cavity is opened inside the ventilator body, the heat exchange tube is installed inside the heat exchange cavity, and the pump body is connected to the water tank and one end of the heat exchange tube through pipelines.

[0015] Preferably, a through hole is provided inside the ultraviolet sterilization column, an extension cavity is provided outside the through hole, the heat utilization structure comprises an air supply pipe installed inside the through hole and a winding pipe wound around the outside of the air supply pipe, the winding pipe is installed inside the extension cavity, and both ends of the winding pipe are respectively connected to the other end of the heat exchange pipe and communicated with the top of the cooling box through a pipeline.

[0016] Preferably, ventilation holes are provided on both sides of the ventilator body, a dust cleaning chamber is provided inside the ventilation holes, a dustproof net is installed on the inner wall of the dust cleaning chamber, and the dust cleaning structure includes a bracket fixedly welded on the top of the water tank, a horizontal plate fixedly welded on one side of the bracket, a guide column fixedly welded on the bottom of the horizontal plate, a dust cleaning brush plate fixedly welded on one side of the bottom of the guide column, a drawer installed on the bottom wall of the dust cleaning chamber, and a reset spring welded between the horizontal plate and the top of the ventilator, and the reset spring is sleeved on the outside of the guide column.

[0017] Preferably, an ultraviolet sterilization lamp is installed on the inner side wall of the extension cavity, a hose is installed at one end of the gas pipe through a detachable head, and a threaded head is installed at one end of the hose.

[0018] Preferably, a thread groove is provided on one side of the threaded head, the hose cooperates with the breathing mask, a thread is provided on the connecting pipe on one side of the breathing mask, and the breathing mask cooperates with the threaded head.

[0019] Preferably, the movable frame includes a base, a lifting cylinder installed on the top of the base by bolts, and a workbench installed on the output shaft of the lifting cylinder, the self-locking wheel is installed at the bottom of the base, an auxiliary plate is fixedly welded on the top of the workbench, and a winding roller is fixedly welded on one side of the auxiliary plate.

[0020] Preferably, the positioning structure includes a positioning vertical plate fixedly welded on the top of the workbench, a positioning cylinder installed on one side of the positioning vertical plate by bolts, a positioning clamping plate installed on the output shaft of the positioning cylinder, and a positioning block fixedly welded on one side of the positioning clamping plate. Positioning grooves are opened on both sides of the ventilator body, and the positioning holes cooperate with the positioning grooves.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The cooling water in the water tank is introduced into the heat exchange tube through the pump body. In the heat exchange cavity, the heat exchange tube and the heat generated by the electronic components inside the ventilator body are exchanged to avoid excessive heat affecting the performance of the electronic components inside the ventilator. After the cooling water in the water tank enters the heat exchange tube and the winding tube, the weight of the water tank becomes lighter. Under the action of the reset spring, the cross plate moves upward, and the cross plate drives the water tank to move upward through the bracket. The water tank drives the T-shaped slider to slide in the T-shaped slide groove, and the cross plate drives the dust cleaning brush plate to move upward through the guide column. After the cooling water returns to the water tank, the weight of the water tank increases, and the water tank drives the dust cleaning brush plate to move downward through the bracket, the cross plate and the guide column, and so on. During heat exchange, the dust cleaning brush plate moves up and down to clean the dust screen inside the ventilation hole, and dust falls into the drawer to avoid dust accumulation and clogging the dust screen, affecting ventilation and heat dissipation.

[0023] 2. The cooling water enters the winding pipe and exchanges heat with the gas passing through the gas pipe to assist in heating the gas, which helps to maintain the temperature of the airway, avoid airway contraction caused by cold air stimulation, reduce patient discomfort, reuse heat, avoid heat waste, and reduce energy consumption. The cooling water in the winding pipe enters the cooling box and is cooled by a cooling structure such as a semiconductor refrigeration sheet, which facilitates the recycling of cooling water, saves water resources, and reduces costs.

[0024] 3. Use ultraviolet sterilization lamp to assist disinfection of the air pipe to improve the disinfection effect. The detachable head can be used to disassemble and assemble the air pipe and the hose according to the use requirements, which is convenient for replacing the hose. The threaded head can be used to disassemble and assemble the hose and the breathing mask, which is convenient for replacing the breathing mask and improving the hygiene and safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the heat dissipation component and the breathing mask in the present invention;

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the water tank and the dust cleaning structure in the present invention;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the hose and the breathing mask in the present invention.

[0030] The numbers in the figure represent:

[0031] 1. Mobile frame; 101. Base; 102. Lifting cylinder; 103. Workbench;

[0032] 2. Self-locking wheel;

[0033] 3. Positioning structure; 301. Positioning vertical plate; 302. Positioning cylinder; 303. Positioning clamping plate; 304. Positioning block;

[0034] 4. Ventilator body; 5. Ultraviolet sterilization column;

[0035] 6. Heat dissipation assembly; 601. Reflux structure; 6011. Water tank; 6012. Cooling box; 6013. Pump body; 602. Heat exchange pipe; 603. Heat utilization structure; 6031. Gas pipe; 6032. Winding pipe; 604. Dust removal structure; 6041. Bracket; 6042. Horizontal plate; 6043. Guide column; 6044. Dust removal brush plate; 6045. Drawer; 6046. Return spring;

[0036] 7. Removable head; 8. Hose; 9. Threaded head; 10. Threaded groove; 11. Auxiliary plate; 12. Winding roller; 13. Positioning groove; 14. Breathing hood; 15. T-shaped slider; 16. Ventilation hole. DETAILED DESCRIPTION

[0037] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0038] The present invention provides a technical solution: a medical emergency ventilator, such as Figure 1-5 As shown, it includes a mobile frame 1, a ventilator body 4 and a heat dissipation component 6;

[0039] A self-locking wheel 2 is installed at the bottom of the mobile frame 1, and a positioning structure 3 is installed at the top of the mobile frame 1. The mobile frame 1 includes a base 101, a lifting cylinder 102 installed on the top of the base 101 by bolts, and a workbench 103 installed on the output shaft of the lifting cylinder 102. The self-locking wheel 2 is installed at the bottom of the base 101, and an auxiliary plate 11 is fixedly welded on the top of the workbench 103, and a winding roller 12 is fixedly welded on one side of the auxiliary plate 11;

[0040] The positioning structure 3 includes a positioning vertical plate 301 fixedly welded on the top of the workbench 103, a positioning cylinder 302 installed on one side of the positioning vertical plate 301 by bolts, a positioning clamping plate 303 installed on the output shaft of the positioning cylinder 302, and a positioning block 304 fixedly welded on one side of the positioning clamping plate 303. Positioning grooves 13 are opened on both sides of the ventilator body 4, and the positioning holes cooperate with the positioning grooves 13;

[0041] The ventilator body 4 is installed on the top of the mobile frame 1. A disinfection and filtration structure is installed inside the ventilator body 4. The disinfection and filtration structure is used to remove bacteria and viruses in the air and reduce the risk of cross infection. The specific structure has been described in detail in the comparative document and will not be described in detail here. An ultraviolet sterilization column 5 is installed on the top of the ventilator body 4.

[0042] In the specific implementation, such as Figure 2-5 As shown, the heat dissipation component 6 is installed inside the ventilator body 4, and the heat dissipation component 6 is used to dissipate the heat of the ventilator body 4, utilize the generated heat, and complete the cleaning of the filter screen;

[0043] The heat dissipation component 6 includes a reflux structure 601 installed on the back side of the ventilator body 4, a heat exchange tube 602 installed inside the ventilator body 4, a heat utilization structure 603 installed inside the ultraviolet sterilization column 5 and a dust removal structure 604 installed inside the ventilator body. A T-shaped slide groove is opened on the back side of the ventilator body 4. The reflux structure 601 includes a water tank 6011 and a cooling box 6012 slidably connected inside the T-shaped slide groove through a T-shaped slider 15 and a pump body 6013 installed on one side of the water tank 6011 by bolts. The water tank 6011 is connected to the cooling box 6012 through a pipeline. A cooling structure is installed inside the cooling box 6012, such as a semiconductor refrigeration plate to cool the cooling water, which is convenient for recycling the cooling water, saving water resources and reducing costs.

[0044] Furthermore, a heat exchange cavity is provided inside the ventilator body 4, and the heat exchange tube 602 is installed inside the heat exchange cavity. The pump body 6013 is connected to the water tank 6011 and one end of the heat exchange tube 602 through pipelines.

[0045] Furthermore, a through hole is opened inside the ultraviolet sterilization column 5, and an extension cavity is opened outside the through hole. The heat utilization structure 603 includes an air pipe 6031 installed inside the through hole and a winding pipe 6032 wound around the outside of the air pipe 6031. The winding pipe 6032 is installed inside the extension cavity, and both ends of the winding pipe 6032 are respectively connected to the other end of the heat exchange pipe 602 and are connected to the top of the cooling box 6012 through a pipeline.

[0046] Furthermore, ventilation holes 16 are provided on both sides of the ventilator body 4, a dust cleaning chamber is provided inside the ventilation holes 16, a dust-proof net is installed on the inner wall of the dust cleaning chamber, and the dust cleaning structure 604 includes a bracket 6041 fixedly welded to the top of the water tank 6011, a horizontal plate 6042 fixedly welded to one side of the bracket, a guide column 6043 fixedly welded to the bottom of the horizontal plate 6042, a dust cleaning brush plate 6044 fixedly welded to one side of the bottom of the guide column 6043, a drawer 6045 installed on the bottom wall of the dust cleaning chamber and a reset spring 6046 welded between the horizontal plate and the top of the ventilator, and the reset spring 6046 is sleeved on the outside of the guide column 6043.

[0047] Furthermore, an ultraviolet sterilization lamp is installed on the inner side wall of the extension cavity, which assists disinfection and improves the disinfection effect. A hose 8 is installed at one end of the air supply pipe 6031 through a detachable head 7, and a threaded head 9 is installed at one end of the hose 8. The hose 8 cooperates with the winding roller 12 to facilitate the placement of the hose 8 when not in use.

[0048] Furthermore, a threaded groove 10 is provided on one side of the threaded head 9, the hose 8 cooperates with the breathing mask 14, a thread is provided on the connecting pipe on one side of the breathing mask 14, the breathing mask 14 cooperates with the threaded head 9, and the detachable head 7 can be used to disassemble and assemble the air supply pipe 6031 and the hose 8 according to usage requirements, which is convenient for replacing the hose 8. The threaded head 9 facilitates disassembly and assembly between the hose 8 and the breathing mask 14, which is convenient for replacing the breathing mask 14 and improving the hygiene and safety performance.

[0049] When in use, the self-locking wheel 2 moves the device to the working position, and the ventilator body 4 is placed on the workbench 103. The positioning cylinder 302 drives the positioning clamping plate 303 to move, and the positioning clamping plate 303 drives the positioning block 304 to move. The positioning block 304 cooperates with the positioning groove 13 to position, and the ventilator body 4 is clamped and fixed by the two positioning clamping plates 303. The height of the workbench 103 is adjusted by the lifting cylinder 102, so that the ventilator body 4 can be raised to the working position according to the use requirements, and the breathing mask 14 can be installed on the patient's face. , the ventilator body 4 starts working, the disinfection and filtering structure is used to remove bacteria and viruses in the air to reduce the risk of cross infection. The specific structure has been described in detail in the comparative document and will not be described in detail here. The air pipe 6031 is assisted in disinfection by an ultraviolet sterilization lamp to improve the disinfection effect. The detachable head 7 can be used to disassemble and assemble the air pipe 6031 and the hose 8 according to the use requirements, which is convenient for replacing the hose 8. The threaded head 9 is convenient for disassembly and assembly between the hose 8 and the breathing mask 14, which is convenient for replacing the breathing mask 14 and improving the hygienic and safety performance;

[0050] During the use of the ventilator body 4, heat is generated. At this time, the cooling water in the water tank 6011 is introduced into the heat exchange tube 602 through the pump body 6013. In the heat exchange cavity, the heat exchange tube 602 exchanges heat with the heat generated by the electronic components inside the ventilator body 4 to avoid excessive heat affecting the performance of the electronic components inside the ventilator. The cooling water after heat exchange enters the winding tube 6032 and exchanges heat with the gas passing through the gas pipe 6031 to assist in heating the gas, which helps to maintain the temperature of the airway, avoid airway contraction caused by cold air stimulation, reduce the patient's discomfort, reuse the heat, avoid heat waste, and reduce energy consumption. The cooling water in the winding tube 6032 enters the cooling box 6012 and is cooled by a cooling structure such as a semiconductor refrigeration sheet, which facilitates the recycling of cooling water, saves water resources, and reduces costs.

[0051] After the cooling water in the water tank 6011 enters the heat exchange tube 602 and the winding tube 6032, the weight of the water tank 6011 becomes lighter. Under the action of the return spring 6046, the cross plate 6042 moves upward, and the cross plate 6042 drives the water tank 6011 to move upward through the bracket 6041. The water tank 6011 drives the T-shaped slider 15 to slide in the T-shaped slide groove, and the cross plate 6042 drives the dust cleaning brush plate 6044 to move upward through the guide column 6043. After the cooling water returns to the water tank 6011, the weight of the water tank 6011 increases, and the water tank 6011 drives the dust cleaning brush plate 6044 to move downward through the bracket 6041, the cross plate 6042 and the guide column 6043, and so on. During heat exchange, the dust-proof net inside the ventilation hole 16 is cleaned by the up and down movement of the dust cleaning brush plate 6044, and dust falls into the drawer 6045 to prevent dust accumulation from clogging the dust-proof net and affecting ventilation and heat dissipation.

[0052] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences can be made to the present invention within the spirit and scope defined by the claims, but they will all fall within the scope of protection of the present invention.

Claims

1. A medical emergency ventilator, characterized in that: include: A mobile frame (1), wherein a self-locking wheel (2) is installed at the bottom of the mobile frame (1), and a positioning structure (3) is installed at the top of the mobile frame (1); A ventilator body (4), the ventilator body (4) being mounted on the top of the mobile frame (1), a disinfection filter structure being mounted inside the ventilator body (4), and an ultraviolet sterilization column (5) being mounted on the top of the ventilator body (4); A heat dissipation component (6), the heat dissipation component (6) being installed inside the ventilator body (4), the heat dissipation component (6) being used to dissipate heat from the ventilator body (4), utilize the generated heat, and complete the cleaning of the filter screen; The heat dissipation component (6) comprises a reflux structure (601) installed on the back side of the ventilator body (4), a heat exchange tube (602) installed inside the ventilator body (4), a heat utilization structure (603) installed inside the ultraviolet sterilization column (5), and a dust removal structure (604) installed inside the ventilator body.

2. A medical emergency ventilator as claimed in claim 1, characterized in that: A T-shaped groove is provided on the back side of the ventilator body (4), and the reflux structure (601) includes a water tank (6011) and a cooling box (6012) slidably connected inside the T-shaped groove via a T-shaped slider (15), and a pump body (6013) installed on one side of the water tank (6011) via bolts. The water tank (6011) is connected to the cooling box (6012) via a pipeline, and a cooling structure is installed inside the cooling box (6012).

3. A medical emergency ventilator as claimed in claim 2, characterized in that: A heat exchange cavity is provided inside the ventilator body (4), the heat exchange tube (602) is installed inside the heat exchange cavity, and the pump body (6013) is connected to the water tank (6011) and one end of the heat exchange tube (602) through pipelines.

4. A medical emergency ventilator as claimed in claim 3, characterized in that: A through hole is provided inside the ultraviolet sterilization column (5), and an extension cavity is provided outside the through hole. The heat utilization structure (603) comprises an air supply pipe (6031) installed inside the through hole and a winding pipe (6032) wound around the outside of the air supply pipe (6031). The winding pipe (6032) is installed inside the extension cavity, and both ends of the winding pipe (6032) are respectively connected to the other end of the heat exchange pipe (602) and are connected to the top of the cooling box (6012) through a pipeline.

5. A medical emergency ventilator as claimed in claim 4, characterized in that: Ventilation holes (16) are provided on both sides of the ventilator body (4), a dust cleaning chamber is provided inside the ventilator hole (16), a dust-proof net is installed on the inner wall of the dust cleaning chamber, and the dust cleaning structure (604) includes a bracket (6041) fixedly welded to the top of the water tank (6011), a horizontal plate (6042) fixedly welded to one side of the bracket, a guide column (6043) fixedly welded to the bottom of the horizontal plate (6042), a dust cleaning brush plate (6044) fixedly welded to one side of the bottom of the guide column (6043), a drawer (6045) installed on the bottom wall of the dust cleaning chamber, and a reset spring (6046) welded between the horizontal plate and the top of the ventilator, and the reset spring (6046) is sleeved on the outside of the guide column (6043).

6. A medical emergency ventilator as claimed in claim 4, characterized in that: An ultraviolet sterilization lamp is installed on the inner side wall of the extension cavity. A hose (8) is installed at one end of the gas delivery pipe (6031) through a detachable head (7), and a threaded head (9) is installed at one end of the hose (8).

7. A medical emergency ventilator as claimed in claim 6, characterized in that: A thread groove (10) is provided on one side of the threaded head (9), the hose (8) cooperates with a breathing mask (14), a thread is provided on a connecting pipe on one side of the breathing mask (14), and the breathing mask (14) cooperates with the threaded head (9).

8. A medical emergency ventilator as claimed in claim 1, characterized in that: The mobile frame (1) comprises a base (101), a lifting cylinder (102) mounted on the top of the base (101) by bolts, and a workbench (103) mounted on the output shaft of the lifting cylinder (102); the self-locking wheel (2) is mounted on the bottom of the base (101); an auxiliary plate (11) is fixedly welded to the top of the workbench (103); and a winding roller (12) is fixedly welded to one side of the auxiliary plate (11).

9. A medical emergency ventilator as claimed in claim 8, characterized in that: The positioning structure (3) comprises a positioning vertical plate (301) fixedly welded to the top of the workbench (103), a positioning cylinder (302) installed on one side of the positioning vertical plate (301) by bolts, a positioning clamping plate (303) installed on the output shaft of the positioning cylinder (302), and a positioning block (304) fixedly welded to one side of the positioning clamping plate (303). Positioning grooves (13) are provided on both sides of the ventilator body (4), and the positioning holes cooperate with the positioning grooves (13).

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