Negative pressure drainage bag detection machine

Abstract

The utility model belongs to the technical field of drainage bag detection, and particularly relates to a negative pressure drainage bag detection machine which comprises a working table and further comprises supports fixedly installed at the top of the working table, a top plate fixedly installed between the supports, a motor fixedly installed at the top of the top plate, a lead screw sleeve fixedly installed at the output end of the motor, and a pressure sensor fixedly installed at the top of the lead screw sleeve. A lead screw bearing is fixedly installed at the bottom of the lead screw sleeve, a lead screw body is fixedly installed at the bottom of the lead screw bearing, the lead screw sleeve can be driven by the motor to rotate, then the lead screw body can be fixed to the bottom of the lead screw sleeve through the lead screw sleeve, and rotation can be conducted through the lead screw bearing; the drainage bag bodies are placed in the containing frame, the pressing plate is driven by the lead screw nut to press downwards, when the pressing plate is pressed to a set position, the motor stops working, the PLC gives an instruction to the electromagnetic valve and supplies air to the four drainage bag bodies, air leakage of the drainage bag bodies can be detected, and accumulated liquid in the bodies can be led out.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drainage bag detection technical field, especially relate to negative pressure drainage bag detection machine. BACKGROUND

[0002] Medical infusion bag tightness tester, also known as negative pressure tightness tester, is a kind of equipment specially used for detecting the overall sealing performance of infusion bag, and its working principle is usually based on negative pressure method, the internal and external pressure difference of the sample immersed in water is generated by vacuumizing the vacuum chamber, the gas escape of infusion bag is observed, and its sealing performance is evaluated, and it is widely used in multiple industries, including food, pharmaceutical, medical device, daily chemical product, plastic soft packaging bag and medicine packaging, but in the existing detection machine, the hydrops cannot be guided out during detection, therefore negative pressure drainage bag detection machine is proposed.

[0003] For example, the Chinese patent with the announcement number CN208350307U discloses a disposable negative pressure drainage bag air tightness detection device, and relates to the field of drainage bag processing, since the disposable negative pressure drainage bag may be welded unqualifiedly during welding, the technical solution points are that the device comprises a soft bag, an upper cover arranged below the soft bag and a supporting column arranged in the soft bag, further comprises a clamping assembly arranged above the supporting column, the supporting column is provided with an annular groove at the position corresponding to the clamping assembly, and the clamping assembly is in clamping cooperation with the annular groove; and the bottom of the supporting column is provided with a pressure sensor.

[0004] The above patent has the following problems:

[0005] The existing technology cannot detect the sealing performance of negative pressure drainage bag, if the negative pressure bag leaks, the consequence is that the negative pressure bag cannot generate negative pressure, and the hydrops in the body cannot be guided out, resulting in unsatisfactory drainage effect, and the existing technology does not adopt analog pressure gauge, cannot convert the pressure value into analog voltage and current signal, the performance of ordinary pressure gauge is poor, has no high precision and sensitivity, cannot display the pressure value of gas, and the data is unreliable. In view of this, the negative pressure drainage bag detection machine is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims at the above-mentioned technical problem, provides negative pressure drainage bag detection machine, can detect the sealing performance of drainage bag, and adopts analog pressure gauge.

[0007] In view of the above, the utility model provides negative pressure drainage bag detection machine, including work table still includes: The top of work table is fixedly installed with support, the between fixed mounting of support has the top plate, the top of top plate is fixedly installed with motor, the output fixed mounting of motor has screw rod sleeve, the bottom fixed mounting of screw rod sleeve has screw rod bearing, the bottom fixed mounting of screw rod bearing has screw rod body, the bottom movable mounting of screw rod body has drainage bag body, the side of drainage bag body is opened in the drainage port, the surface fixed mounting of drainage port has locking valve, the other side of drainage bag body is opened in the inflation pipe, the bottom of inflation pipe is opened in the liquid discharge pipe, the other side fixed mounting of inflation pipe has precision pressure gauge.

[0008] Based on the above structure, the motor can drive the screw rod sleeve to rotate, and the screw rod sleeve can fix the screw rod body to the bottom of the screw rod sleeve. When detection is needed, the drainage bag body is placed in the placing frame, the pressure plate is pressed down by the screw nut, and the motor stops working when it reaches the set position. The PLC controller gives the electromagnetic valve command and supplies air to the four drainage bag bodies. When the air pressure reaches the set time, the air pressure stabilizes, and the four drainage bag bodies are inflated. When the air is inflated to a certain extent, the drainage bag body is inflated. Because the air bag is limited by the pressure plate above the air bag, the air pressure value in the air bag is easily reached. The electromagnetic valve closes the air in the air bag to maintain pressure. The combination can detect the sealing performance of the drainage bag body. The air leakage of the drainage bag body can be detected, and the hydrops in the body can be drained. The drainage effect is not ideal. One of the drainage bag bodies is connected to the precision pressure gauge. The value in the pressure gauge has an upper limit and a lower limit. When the inflation pressure reaches the set pressure upper limit, the detection starts to work, that is, the electromagnetic valve above the air inlet valve is closed, and the air pressure in the air bag is maintained. At this time, the air pressure connected to the table can display the air pressure change in the drainage bag at any time. The drainage port facilitates the introduction of liquid, and the locking valve can close the drainage port to facilitate detection. The liquid discharge pipe facilitates liquid discharge. The combination uses an analog pressure gauge to convert the pressure value into an analog voltage and current signal, has high precision and sensitivity, can display the pressure value of the gas, and the data is reliable.

[0009] Preferably, the bottom of the workbench is fixedly installed with a frame, and the bottom of the frame is fixedly installed with universal wheels. The workbench facilitates detection.

[0010] Preferably, the top of the support is fixedly installed with a fixed plate, and the bottom of the support is fixedly installed with a placing frame. The support facilitates supporting the display screen for control.

[0011] Preferably, the frame is fixedly installed with a fixing frame, and a protective door is movably installed in the fixing frame, so that the protective door facilitates protection of the inside of the fixing frame.

[0012] Preferably, the surface of the fixing plate is fixedly installed with a control panel, the surface of the control panel is provided with a display screen in a penetrating mode, the bottom of the display screen is fixedly installed with a button, and the button facilitates control of the motor.

[0013] Preferably, the bottom of the top plate is provided with a guide column in a penetrating mode, the bottom of the guide column is fixedly installed with a table plate, the surface of the guide column is sleeved with a linear bearing, and the guide column facilitates support of the top plate and the table plate.

[0014] Preferably, the top of the universal wheel is fixedly installed with a fixing frame, and the two ends of the fixing frame are fixedly installed with a limiting plate, so that the fixing frame facilitates collection of articles.

[0015] The utility model discloses beneficial effects are:

[0016] 1. The negative pressure drainage bag detection machine can drive the screw rod sleeve to rotate by the motor, and the screw rod body can be fixed to the bottom of the screw rod sleeve by the screw rod sleeve, and the rotation can be rotated through the screw rod bearing, when detection is needed, the drainage bag body is placed in the inside of the placing frame, the pressing plate is driven down by the screw nut, and the motor stops working when the setting position is pressed; the electromagnetic valve is instructed by the PLC controller, four drainage bag bodies are supplied with gas, the gas pressure reaches the setting time, the gas pressure is stable, the four drainage bag bodies are inflated, the drainage bag body is inflated to a certain degree, the gas bag is limited to inflate by the pressing plate above the drainage bag body, and the gas pressure value in the inflation bag is easily reached. The electromagnetic valve closes the gas in the gas bag to keep pressure, and the drainage bag body is sealed, air leakage of the drainage bag body can be detected, and the accumulated liquid in the body can be drained, so that the drainage effect is not ideal.

[0017] 2. The negative pressure drainage bag detection machine can connect the precision pressure gauge through one inflation pipe of the drainage bag body, the value in the pressure gauge is set to have an upper limit and a lower limit, the inflation pressure is inflated to the set pressure upper limit, the detection starts to work, that is, the electromagnetic valve above the air inlet valve is closed, the gas pressure in the gas bag is kept, the gas pressure on the table can display the gas pressure change in the drainage bag at any time, the drainage port facilitates the introduction of liquid, the locking valve can be closed to facilitate the detection work, and the liquid discharge pipe facilitates the liquid discharge work. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole perspective view of the utility model.

[0019] Figure 2 It is the overall structure schematic view in the utility model;

[0020] Figure 3 It is the overall sectional view in the utility model;

[0021] Figure 4 It is the top plate local solid drawing in the utility model;

[0022] Figure 5 It is the fixed frame local solid drawing in the utility model;

[0023] Figure 6 It is the drainage bag body local structure schematic view in the utility model.

[0024] The mark in the drawing indicates that:

[0025] 1, workbench;101, frame;102, universal wheel;2, support;201, fixed plate;202, placing frame;3, top plate;301, motor;302, screw sleeve;303, screw bearing;304, screw body;4, drainage bag body;401, drainage port;402, locking valve;403, inflation pipe;404, liquid discharge pipe;5, fixed frame;501, protection door;6, control panel;601, display screen;602, button;7, guide column;701, table plate;702, linear bearing;8, fixed frame;801, limiting plate. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] The application embodiment discloses a negative pressure drainage bag detection machine, please refer to Figures 1-6, including the workbench 1, further comprising: the top of the workbench 1 is fixedly installed with the support 2, the support 2 is fixedly installed with the top plate 3 between, the top of the top plate 3 is fixedly installed with the motor 301, the output end of the motor 301 is fixedly installed with the lead screw sleeve 302, the bottom of the lead screw sleeve 302 is fixedly installed with the lead screw bearing 303, the bottom of the lead screw bearing 303 is fixedly installed with the lead screw body 304, the bottom of the lead screw body 304 is movably installed with the drainage bag body 4, the side of the drainage bag body 4 is penetrated with the drainage port 401, the surface of the drainage port 401 is fixedly installed with the locking valve 402, the other side of the drainage bag body 4 is penetrated with the inflation tube 403, the bottom of the inflation tube 403 is penetrated with the liquid discharge pipe 404, the other side of the inflation tube 403 is fixedly installed with the precision pressure gauge.

[0028] Based on the above structure, the motor 301 can drive the lead screw sleeve 302 to rotate, and the lead screw sleeve 302 can fix the lead screw body 304 to the bottom of the lead screw sleeve 302. The rotation can be rotated through the lead screw bearing 303. When detection is needed, the drainage bag body 4 is placed in the placing frame 202, the pressing plate is pressed down by the lead screw nut, and the motor 301 stops working when it is pressed to the set position. The PLC controller gives the electromagnetic valve command, and four drainage bag bodies 4 are supplied with air. When the air pressure reaches the set time, the air pressure is stable, and the four drainage bag bodies 4 are inflated. When the air is inflated to a certain extent, the drainage bag body 4 is inflated. Because the air-filled drainage bag body 4 is limited by the pressing plate above the air bag, the air bag is easy to reach the air pressure value in the air-filled bag. The electromagnetic valve closes the air in the air bag to maintain pressure. The cooperation can detect the sealing performance of the drainage bag body 4. The air leakage of the drainage bag body 4 can be detected, and the hydrops in the body can be drained, which will not cause unsatisfactory drainage effect. One of the drainage bag bodies 4 is connected with the precision pressure gauge through the inflation tube 403. The value in the pressure gauge is set with upper and lower limits. When the inflation pressure reaches the set pressure upper limit, the detection starts to work, that is, the electromagnetic valve on the air inlet valve is closed, and the air pressure in the air bag is maintained. At this time, the air pressure connected to the table can display the air pressure change in the drainage bag at any time. The drainage port 401 facilitates the introduction of liquid, and then the locking valve 402 can close the drainage port 401 to facilitate detection work. The liquid discharge pipe 404 facilitates the liquid discharge work. The cooperation adopts an analog pressure gauge to convert the pressure value into an analog voltage and current signal, has high precision and sensitivity, can display the pressure value of the gas, and the data is reliable.

[0029] In one of the embodiments, the bottom of the workbench 1 is fixedly installed with the frame 101, and the bottom of the frame 101 is fixedly installed with the universal wheel 102.

[0030] Specifically, the workbench 1 can be used to place the frame 202, and then the frame 101 can be used to facilitate the goods, and can also play a supporting role, and then the universal wheel 102 can drive the device to move.

[0031] In this embodiment, the workbench 1 supports the drainage bag body 4 to be fixed, and strengthens the stability during detection.

[0032] In one embodiment, the top of the support 2 is fixedly provided with a fixed plate 201, and the bottom of the support 2 is fixedly provided with a placing frame 202.

[0033] Specifically, the support 2 can be used in cooperation with the fixed plate 201 to limit and protect the top plate 3, and the placing frame 202 can be used to place the drainage bag body 4.

[0034] In this embodiment, the support 2 protects and fixes the top plate 3, and strengthens the stability during operation of the motor 301.

[0035] In one embodiment, the frame 101 is fixedly provided with a fixed frame 5 between the frames, and the fixed frame 5 is movably provided with a protective door 501 inside.

[0036] Specifically, the fixed frame 5 can be used to fix the protective door 501 to the frame 101, and then the protective door 501 can be used for protection.

[0037] In this embodiment, the fixed frame 5 can be used to fix the protective door 501 to the frame 101, and then the protective door 501 can be used for protection.

[0038] In one embodiment, the surface of the fixed plate 201 is fixedly provided with a control panel 6, the surface of the control panel 6 is provided with a display screen 601, and the bottom of the display screen 601 is fixedly provided with a button 602.

[0039] Specifically, the control panel 6 can be used to limit the data of the motor 301 through the display screen 601, and the motor 301 can be controlled through the button 602.

[0040] In this embodiment, the display screen 601 displays data, which is convenient for users to watch and record.

[0041] In one embodiment, the bottom of the top plate 3 is provided with a guide column 7, the bottom of the guide column 7 is fixedly provided with a table panel 701, and the surface of the guide column 7 is provided with a linear bearing 702.

[0042] Specifically, the guide column 7 can be used to connect the top plate 3 and the table panel 701, and the linear bearing 702 can be used to facilitate the support and guidance of the guide column 7.

[0043] In this embodiment, the main role of the linear bearing 702 is to support and guide the guide column 7 through the movement of the rolling elements between the bearing sleeve and the bearing seat.

[0044] In one embodiment, the top of the universal wheel 102 is fixedly installed with a fixed frame 8, and the two ends of the fixed frame 8 are fixedly installed with limit plates 801.

[0045] Specifically, the fixed frame 8 can be used to store articles, and then the limit plates 801 are used for limiting.

[0046] In this embodiment, the fixed frame 8 stores articles, and the frame 101 installs an electric appliance, which is convenient for detecting and storing articles.

[0047] In use, the negative pressure drainage bag detection machine of the embodiment can place four negative pressure drainage bag bodies 4 in the placing frames 202, power on, ventilate, and rotate the knob 602 to the right to display the screen of the display screen 601 after power on, and then enter the interface. The button 602 is provided with multiple reset buttons 602, and the motor 301 is reset. After the reset is completed, normal operation can be performed. Press another start button, and the motor 301 rotates the movable shaft coupling to drive the lead screw body 304, and drives the pressing plate to press down through the lead screw nut. When the pressing plate reaches the set position, the motor 301 stops working. The PLC controller gives the electromagnetic valve command to supply air to the four drainage bag bodies 4. When the air pressure reaches the set time, the air pressure is stable, and the four drainage bag bodies 4 are inflated. When the air is inflated to a certain degree, the drainage bag body 4 is inflated. Because the air inflation drainage bag body 4 is limited by the pressing plate above the air bag, the air pressure value in the air inflation bag is easily reached. The electromagnetic valve closes the gas in the drainage bag body 4 to maintain pressure. One of the drainage bag bodies 4 is connected to a precision pressure gauge. The value in the pressure gauge is set to have an upper limit and a lower limit. When the inflation pressure reaches the set pressure upper limit, the detection starts to work, that is, the electromagnetic valve above the air inlet valve is closed, and the air pressure in the drainage bag body 4 is maintained. At this time, the air pressure connected to the table can display the air pressure change in the drainage bag body 4 at any time. The air pressure change is within the set time and does not exceed the set lower limit, which is qualified. If the lower limit is exceeded, it is unqualified. The position of the unqualified drainage bag body 4 is displayed on the display screen 601. The unqualified limit can be read out at any time. After the detection is completed, the pressing plate is automatically lifted, and then the vacuum generator starts to work. After the vacuum generator stops working, the drainage bag body 4 can be taken out, and the whole working process is completed.

[0048] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Negative pressure drainage bag detection machine, comprising a workbench (1), characterized in that, Also includes: The top of the workbench (1) is fixedly installed with support (2), the support (2) is fixedly installed with top plate (3), the top of the top plate (3) is fixedly installed with motor (301), the output end of the motor (301) is fixedly installed with lead screw sleeve (302), the bottom of the lead screw sleeve (302) is fixedly installed with lead screw bearing (303), the bottom of the lead screw bearing (303) is fixedly installed with lead screw body (304), the bottom of the lead screw body (304) is movably installed with drainage bag body (4), one side of the drainage bag body (4) is throughly provided with drainage port (401), the surface of the drainage port (401) is fixedly installed with locking valve (402), the other side of the drainage bag body (4) is throughly provided with inflation tube (403), the bottom of the inflation tube (403) is throughly provided with liquid discharge pipe (404), the other side of the inflation tube (403) is fixedly installed with precision pressure gauge.

2. The negative pressure wound drainage bag detection machine of claim 1, wherein: The bottom of the workbench (1) is fixedly installed with frame (101), the bottom of the frame (101) is fixedly installed with universal wheel (102).

3. The negative pressure wound drainage bag detection machine of claim 1, wherein: The top of the support (2) is fixedly installed with fixed plate (201), the bottom of the support (2) is fixedly provided with placing frame (202).

4. The negative pressure wound drainage bag detection machine of claim 2, wherein: The frame (101) is fixedly installed with fixed frame (5) between, the inside of the fixed frame (5) is movably installed with protective door (501).

5. The negative pressure wound drainage bag detection machine of claim 3, wherein: The surface of the fixed plate (201) is fixedly installed with control panel (6), the surface of the control panel (6) is throughly provided with display screen (601), the bottom of the display screen (601) is fixedly installed with button (602).

6. The negative pressure wound drainage bag detection machine of claim 1, wherein: The bottom of the top plate (3) is throughly installed with guide column (7), the bottom of the guide column (7) is fixedly installed with table plate (701), the surface of the guide column (7) is sleevedly installed with linear bearing (702).

7. The negative pressure wound drainage bag detection machine of claim 2, wherein: The top of the universal wheel (102) is fixedly installed with fixed frame (8), the both ends of the fixed frame (8) are fixedly installed with limiting plate (801).

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