Injector sealing performance detection device

Abstract

The utility model relates to the technical field of sealing performance detection, in particular to an injector sealing performance detection device, which comprises a mechanical module and a control module, the mechanical module comprises a box body, one side of the box body is provided with a detection area, the detection area comprises an injector, a positioning frame, two support pillars, a pressure measuring frame and a guide rail, and the control module is connected with the positioning frame. The positioning frame and the pressure measuring frame are slidably connected to the outer surface of the guide rail, a motor is fixedly connected to one side of the box body, and the tail end of an output shaft of the motor is in transmission connection to one end of the guide rail; and the control module comprises a controller with keys and a display. The device is provided with the screw rod, the nuts and the rubber plug, an injector to be detected is placed in the U-shaped grooves of the fixed block and the movable block, the two nuts are locked, then the rubber plug is inserted into the groove, and the device increases the outer surface for fixing a needle cylinder, so that the injector is fixed more firmly during detection, and the detection accuracy is improved when tangential force and axial force are received for detection. And shaking is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of tightness detection, in particular to a syringe tightness detection device. Background Art

[0002] Some existing tightness testing devices are not firmly fixed when placing the syringe, which is easy to shake and affect the accuracy of the test result. Utility Model Content

[0003] In order to enhance the firmness of a syringe after being installed on the tightness detection device, the utility model provides a syringe tightness detection device.

[0004] The utility model provides a syringe tightness detection device adopts the following technical solution:

[0005] A syringe tightness detection device includes a mechanical module and a control module. The mechanical module includes a box body, a detection area is opened on one side of the box body, and the detection area includes a syringe, a positioning frame, two top columns, a pressure measuring frame and a guide rail. The positioning frame and the pressure measuring frame are both slidably connected to the outer surface of the guide rail. A motor is fixedly connected to one side of the box body, and the end of the motor output shaft is transmission-connected to one end of the guide rail; the control module includes a controller with buttons and a display, the controller is fixedly connected to the inside of the box body, and the motor is communicatively connected to the controller.

[0006] By adopting the above technical solution, the positioning frame fixes the syringe to be tested, the pressure measuring frame fills water into the syringe and tests the water pressure inside the syringe, and the tightness of the syringe is tested when the ejector column is pushed.

[0007] Preferably, the positioning frame and the pressure measuring frame both include a sliding frame, and the positioning frame also includes a fixed block, a movable block and a slide groove, the bottoms of the fixed block and the slide groove are fixedly connected to the top of the corresponding sliding frame, the bottom of the movable block is slidably connected to the outer surface of the slide groove, the outer surfaces of the fixed block and the movable block are provided with U-shaped grooves, and the tops of the fixed block and the movable block are provided with grooves.

[0008] Preferably, one side of the fixed block and the movable block is fixedly connected with a protrusion, screws are inserted into the two protrusions, the outer surface of the screw is threadedly connected with two nuts, and one side of the two nuts is clamped on one side of the corresponding protrusion.

[0009] By adopting the above technical solution, the two nuts are locked, and then the movable block and the fixed block are locked, so that the syringe is locked and the fixation of the syringe is strengthened.

[0010] Preferably, the syringe comprises a syringe and a core rod, the core rod is slidably connected to the interior of the syringe, one end of the syringe overlaps the interior of two grooves, the outer surface of the syringe overlaps the interior of two U-shaped grooves, the interiors of the two U-shaped grooves are clamped with rubber plugs that match them, and the bottom of each rubber plug is clamped on the outer surface of the syringe; one of the top columns is fixedly connected to one side of the box body and is placed coaxially with the syringe, the outer surface of the other top column is slidably connected to the interior of the box body, the interior of the box body is fixedly connected to a cylinder, and the end of the cylinder output shaft is fixedly connected to one end of the other top column.

[0011] By adopting the above technical scheme, the fixation of the syringe is strengthened by the rubber plug. Compared with twisting and loosening the bolt, the time consumed in pulling out and inserting the rubber plug and replacing the syringe is shorter. The syringe is subjected to axial force and tangential force through the ejector column, so as to detect the tightness of the syringe under different force conditions. The force generated by the collision between the syringe and the ejector column is monitored in real time through the pressure sensor.

[0012] Preferably, a support plate is fixedly connected to the top of one of the sliding frames, a blocking column is fixedly connected to one side of the support plate, a water pipe is fixedly connected to the inside of the blocking column, a water pressure sensor is fixedly connected to the inside of one end of the blocking column, a solenoid valve is fixedly connected to the water pipe, one end of the two top columns is fixedly connected to a pressure sensor, and the water pressure sensor, the solenoid valve and the two pressure sensors are all communicatively connected to the controller.

[0013] By adopting the above technical solution, the amount of water entering the syringe is controlled by controlling the time interval of the switch through the battery valve, so that the switch time of the electromagnetic valve is different for different syringes.

[0014] Preferably, one end of the syringe is clamped to one end of the blocking column in a time-sharing manner.

[0015] By adopting the above technical solution, when testing the tightness, the needle mouth of the syringe is in contact with the sealing column and is sealed by the sealing column. When the tightness is not tested, there is no connection between the syringe and the sealing column, which makes it convenient to test the water pressure in the syringe through the sealing column.

[0016] Preferably, four electric legs and four universal wheels are fixedly connected to the bottom of the box.

[0017] By adopting the above technical solution, the height of the box body itself is changed by raising and lowering the electric legs, thereby preventing the bottom of the box body from being corroded by water.

[0018] Preferably, an anti-collision strip is fixedly connected to the outer surface of the box.

[0019] By adopting the above technical solution, the anti-collision strip can prevent the box from directly hitting the wall or surrounding instruments and equipment.

[0020] As the technical solution of the utility model, the hardware setting provided is only to facilitate the strengthening of the syringe installed on the tightness detection device on the basis of the hardware facilities. The specific method of strengthening the syringe installed on the tightness detection device is not the technical problem to be solved and the object of protection of the utility model. At the same time, the communication method between the devices adopts the existing communication method, which is not the innovation of this application.

[0021] In summary, the utility model has the following beneficial technical effects:

[0022] 1. The device is provided with a screw, a nut and a rubber plug. The syringe to be tested is placed in the U-shaped groove of the fixed block and the movable block, and the two nuts are locked until the two nuts clamp the protrusions, and then the rubber plug is inserted into the groove. Through the cooperation of the nut and the screw, the movable block and the fixed block lock the outer surface of the syringe, and the ear of the syringe is fixed by inserting the rubber plug. Compared with some testing instruments that only fix the ear of the syringe, this device adds the outer surface of the fixed syringe, so that the syringe is fixed more firmly during testing, and is not easy to shake when receiving the tangential force and axial force detection;

[0023] 2. The device is provided with a pressure sensor and a water pressure sensor. After the water injection is completed, the blocking column 7 blocks the needle port of the syringe, driving the positioning frame and the movable frame to move toward the top column at the same time, and testing whether the tightness of the syringe is qualified under the action of the tangential force and the axial force. If it is not leaking, it is qualified, and if it is leaking, it is unqualified. The pressure sensor and the water pressure sensor are used to judge whether the current test pressure of the syringe is the pressure required by the test standard. When the pressure data reaches the specified data, the movement of the positioning frame and the movable frame can be stopped immediately by the locking handle to avoid affecting the detection accuracy. At the same time, the relevant test data is displayed on the display screen, and the relevant test results and test data can be conveniently printed through the onboard printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of a syringe tightness detection device of the utility model;

[0025] Figure 2 It is a front view of a syringe tightness detection device of the utility model;

[0026] Figure 3 It is a top view of a syringe tightness detection device of the utility model;

[0027] Figure 4 It is a bottom view of a syringe tightness detection device of the utility model;

[0028] Figure 5 yes Figure 3 Sectional view along line AA.

[0029] Description of reference numerals:

[0030] 1. Box body; 2. Positioning frame; 21. Fixed block; 22. Moving block; 23. Slide; 24. Screw;

[0031] 3. Top column; 4. Pressure test frame; 5. Guide rail; 6. Motor; 7. Blocking column;

[0032] 8. Electric outriggers; 9. Universal wheels; 10. Anti-collision strips;

[0033] 11. Locking handle; 12. Onboard printer. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-Figure 5 The utility model is described in further detail.

[0035] The utility model embodiment discloses a syringe tightness detection device.

[0036] Reference Figure 1 , Figure 2 , Figure 3 , including a mechanical module and a control module, the mechanical module includes a box body 1, a detection area is opened on one side of the box body 1, the detection area includes a syringe, a positioning frame 2, two top columns 3, a pressure measuring frame 4 and a guide rail 5, the positioning frame 2 and the pressure measuring frame 4 are both slidably connected to the outer surface of the guide rail 5, when the positioning frame 2 moves driven by the motor 6 and the guide rail 5, the bottom of the positioning frame 2 slides on one side of the box body 1, one side of the box body 1 is fixedly connected with the motor 6, the end of the output shaft of the motor 6 is transmission-connected to one end of the guide rail 5, and a locking handle 11 is installed on the outer surface of the guide rail 5. By turning the locking handle 11, the guide rail 5 is stopped The operation of the housing 1 can control the distance between the positioning frame 2 and the top column 3 fixed on the housing 1, thereby controlling the impact force of the top column 3 on the core rod; the control module includes a controller with buttons and a display. The tester sets the operation controller by operating the buttons of the controller. After the syringe is installed inside the positioning frame 2, the inspection begins. An onboard printer 12 is also installed on one side of the housing 1. The controller is fixedly connected to the inside of the housing 1. The onboard printer 12 and the motor 6 are both connected to the controller for communication. The controller can print the test results, the axial force and tangential force during the test, the water pressure data in the syringe, etc.

[0037] Reference Figure 2 , Figure 3 , Figure 5, the positioning frame 2 and the pressure measuring frame 4 both include a sliding frame, and the positioning frame 2 also includes a fixed block 21, a moving block 22 and a slide groove 23. The bottoms of the fixed block 21 and the slide groove 23 are fixedly connected to the top of the corresponding sliding frame, and the bottom of the moving block 22 is slidably connected to the outer surface of the slide groove 23. The fixed block 21 is stationary, and the moving block 22 can move at the top of the slide groove 23, and move in the direction close to or away from the moving block 22, so that syringes of different sizes can be clamped and syringes of different specifications and models can be tested. The outer surfaces of the fixed block 21 and the moving block 22 are both provided with U-shaped grooves, and the U-shaped grooves are used to place the syringes of the syringes. When the fixed block 21 and the moving block 22 are not connected by the locking screw 24, the syringes are overlapped in the two U-shaped grooves. The tops of the fixed block 21 and the moving block 22 are both provided with grooves, and the ears of the syringes are placed through the grooves. At the same time, the ears of the syringes are fixed by inserting a rubber plug, thereby preventing the syringes from rotating or moving under the push of the tangential force and axial force given by the two top columns.

[0038] Reference Figure 2 , Figure 3 , Figure 5 One side of the fixed block 21 and the movable block 22 are fixedly connected with a protrusion, and the inside of the two protrusions is inserted with a screw 24. The outer surface of the screw 24 is threadedly connected with two nuts, and one side of the two nuts is clamped on one side of the corresponding protrusion. The two protrusions are clamped between the two nuts. After locking the nuts, the movable block 22 and the fixed block 21 tightly clamp the syringe. When it is necessary to replace a syringe of different specifications, loosen the nut, pull out the rubber stopper, take out the syringe that has been tested, and replace it with a new syringe.

[0039] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5The syringe comprises a syringe and a core rod, the core rod is slidably connected to the inside of the syringe, one end of the syringe is overlapped with the inside of the two grooves, the outer surface of the syringe is overlapped with the inside of the two U-shaped grooves, the inside of the two U-shaped grooves are clamped with rubber plugs adapted thereto, and the bottom of each rubber plug is clamped to the outer surface of the syringe; one of the top columns 3 is fixedly connected to one side of the box body 1 and is placed coaxially with the syringe, the positioning frame 2 drives the syringe to be tested to collide with the fixed top column 3, that is, the end of the core rod away from the needle port is in contact with the top column 3, and as the positioning frame 2 moves to the fixed top column 3, the core rod is subjected to different axial forces. In this process, the pressure measuring frame 4 moves along The positioning frame 2 moves together so that the needle hole of the syringe is in contact with the blocking column 7. During the movement, the syringe continues to remain sealed. The outer surface of the other push column 3 is slidably connected to the interior of the box body 1. The interior of the box body 1 is fixedly connected to a cylinder, and the end of the cylinder output shaft is fixedly connected to one end of the other push column 3. The positioning frame 2 drives the syringe to move. After the syringe moves to the range where the push column 3 can be extended and hit, the cylinder is controlled to drive the movable push column 3 to hit the syringe, providing a tangential force for the syringe. Looking from the side, the syringe is under the action of the tangential force to see whether it is airtight. The force is mutual, and the tangential force and axial force applied to the syringe are determined by the pressure sensor.

[0040] Reference Figure 1 , Figure 2 , Figure 3 , a support plate is fixedly connected to the top of one of the sliding frames, a blocking column 7 is fixedly connected to one side of the support plate, a water pipe is fixedly connected to the inside of the blocking column 7, and a water pressure sensor is fixedly connected to the inside of one end of the blocking column 7. When the top column 3 fixed on the surface of the box body 1 pushes the core rod to press the water in the syringe, the needle mouth of the syringe is tightly attached to the blocking column 7, and the water pressure at the needle mouth of the syringe is detected by the water pressure sensor. After the pressure of the top column 3 is constant, if the syringe leaks, the data detected by the water pressure sensor continues to decrease, and the airtightness of the syringe is insufficient. If the syringe does not leak, the data detected by the water pressure sensor remains unchanged, and the airtightness of the syringe is good. An electromagnetic valve is fixedly connected in the water pipe. When the pressure measuring frame 4 moves to the vicinity of the needle mouth of the syringe, the water pipe is passed, the controller opens the battery valve, and after injecting water, the electromagnetic valve is closed again. The pressure measuring frame 4 moves to the blocking column 7 to block the needle mouth of the syringe. One end of the two top columns 3 is fixedly connected with a pressure sensor, and the water pressure sensor, the electromagnetic valve and the two pressure sensors are all connected to the controller for communication.

[0041] Reference Figure 2 , Figure 3 One end of the syringe is time-dividedly connected to one end of the blocking column 7. When testing the tightness, when there is water in the syringe, the needle mouth end of the syringe is blocked at one end of the blocking column 7. When the test is finished or the test has not started, the blocking column 7 is away from the needle mouth end of the syringe and is not in contact with the syringe.

[0042] Reference Figure 4 , Figure 5 Four electric legs 8 and four universal wheels 9 are fixedly connected to the bottom of the box body 1, and the electric legs 8 assist the universal wheels 9 to support the box body 1.

[0043] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 The outer surface of the box body 1 is fixedly connected with an anti-collision strip 10. When the box body 1 is moved, the anti-collision strip 10 can prevent the box body 1 from directly hitting the wall and prevent the parts on the box body 1 from being damaged or collided.

[0044] The implementation principle of a syringe tightness detection device in the embodiment of the utility model is:

[0045] 1. Place the syringe to be tested into the U-shaped grooves of the fixed block 21 and the movable block 22, tighten the two nuts until the two nuts clamp the protrusions, and then insert the rubber plug into the groove;

[0046] 2. The pressure measuring frame 4 moves toward the positioning frame 2. After one end of the water pipe enters the interior of the syringe, the solenoid valve is started to inject water. After the injection is completed, the pressure measuring frame 4 is moved to the blocking column 7 to block the needle port of the syringe. The motor 6 is started to drive the positioning frame and the pressure measuring frame 4 to move toward the top column 3 at the same time. The syringe is tested for tightness under the action of tangential force and axial force. If there is no water leakage, it is considered qualified, and if there is water leakage, it is considered unqualified.

[0047] 3. The pressure sensor and water pressure sensor are used to determine whether the current test pressure of the syringe is the pressure required by the test standard. The data of the pressure sensor and water pressure sensor are transmitted to the controller and displayed on the display screen. The relevant test results and test data can be printed through the onboard printer 12.

[0048] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A syringe tightness detection device, characterized in that: The invention comprises a mechanical module and a control module, wherein the mechanical module comprises a box (1), a detection area is provided on one side of the box (1), the detection area comprises a syringe, a positioning frame (2), two top columns (3), a pressure measuring frame (4) and a guide rail (5), the positioning frame (2) and the pressure measuring frame (4) are both slidably connected to the outer surface of the guide rail (5), a motor (6) is fixedly connected to one side of the box (1), and the end of the output shaft of the motor (6) is drivingly connected to one end of the guide rail (5); The control module comprises a controller with buttons and a display, the controller is fixedly connected to the inside of the box (1), and the motor (6) is communicatively connected to the controller.

2. A syringe tightness detection device according to claim 1, characterized in that: The positioning frame (2) and the pressure measuring frame (4) both include a sliding frame, and the positioning frame (2) further includes a fixed block (21), a movable block (22) and a slide groove (23), the bottoms of the fixed block (21) and the slide groove (23) are fixedly connected to the top of the corresponding sliding frame, the bottom of the movable block (22) is slidably connected to the outer surface of the slide groove (23), the outer surfaces of the fixed block (21) and the movable block (22) are both provided with a U-shaped groove, and the tops of the fixed block (21) and the movable block (22) are both provided with a groove.

3. A syringe tightness detection device according to claim 2, characterized in that: One side of the fixed block (21) and the movable block (22) is fixedly connected to a protrusion, the interiors of the two protrusions are plugged with screw rods (24), the outer surfaces of the screw rods (24) are threadedly connected to two nuts, and one side of the two nuts is clamped to one side of the corresponding protrusion.

4. A syringe tightness detection device according to claim 3, characterized in that: The syringe comprises a syringe and a core rod, wherein the core rod is slidably connected to the inside of the syringe, one end of the syringe overlaps the inside of two grooves, the outer surface of the syringe overlaps the inside of two U-shaped grooves, and the inside of the two U-shaped grooves are both clamped with rubber plugs adapted thereto, and the bottom of each rubber plug is clamped to the outer surface of the syringe; One of the top columns (3) is fixedly connected to one side of the box body (1) and is placed coaxially with the syringe, and the outer surface of the other top column (3) is slidably connected to the inside of the box body (1), and a cylinder is fixedly connected to the inside of the box body (1), and the end of the output shaft of the cylinder is fixedly connected to one end of the other top column (3).

5. A syringe tightness detection device according to claim 4, characterized in that: A support plate is fixedly connected to the top of one of the sliding frames, a blocking column (7) is fixedly connected to one side of the support plate, a water pipe is fixedly connected to the inside of the blocking column (7), a water pressure sensor is fixedly connected to the inside of one end of the blocking column (7), a solenoid valve is fixedly connected to the inside of the water pipe, and a pressure sensor is fixedly connected to one end of the two top columns (3), and the water pressure sensor, the solenoid valve and the two pressure sensors are all connected to the controller for communication.

6. A syringe tightness detection device according to claim 5, characterized in that: One end of the syringe is clamped to one end of the blocking column (7) in a time-sharing manner.

7. A syringe tightness detection device according to claim 6, characterized in that: Four electric legs (8) and four universal wheels (9) are fixedly connected to the bottom of the box body (1).

8. A syringe tightness detection device according to claim 7, characterized in that: An anti-collision strip (10) is fixedly connected to the outer surface of the box body (1).

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