Device for detecting sealing performance of disposable sterile syringe

Abstract

The utility model relates to detection equipment, in particular to sealing performance detection equipment for disposable sterile syringes. The disposable sterile syringe sealing performance detection device comprises a supporting plate, a pressing assembly, a U-shaped tube, scale marks, a rubber plug, a fixing plate, a rubber clamping block I and a fixing seat, the top of the supporting plate is provided with the pressing assembly, the lower side of the supporting plate is connected with the fixing seat, the fixing seat is provided with a placing groove, the U-shaped tube is placed on the placing groove, and the scale marks are arranged on the U-shaped tube. Scale marks are engraved on the two sides of the front side wall of the U-shaped pipe, and rubber plugs are plugged at the two ends of the top of the U-shaped pipe. By inserting the injectors into the two ends of the U-shaped pipe, pushing the piston rods of the injectors and observing the flowing condition of clear water, the sealing performance of the injectors on the two sides can be detected, the method can effectively improve the detection efficiency, and compared with a mode of observing through inflation in the prior art, the method is more accurate, and the detection efficiency is improved. Errors caused by possible air leakage of the air pipe are avoided.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a sealing detection device for a disposable sterile syringe. Background Art

[0002] Disposable sterile syringes are mainly composed of a jacket, a core rod, a piston, and an injection needle (the injection needle is optional). To ensure product quality and safety, syringes must undergo a sealing test before leaving the factory to check for cracks or tiny leaks on the surface.

[0003] Traditional detection methods usually use the following steps:

[0004] First, connect both ends of the syringe to the air injection tube, immerse the entire syringe in water, then inflate the syringe through the air injection tube, and observe whether bubbles appear in the water to determine whether the syringe is leaking.

[0005] However, this traditional detection method has the following shortcomings:

[0006] 1. The gas injection pipe itself may bring additional leakage points, thus affecting the accuracy of the test results.

[0007] 2. It is necessary to manually connect the gas injection pipe and ensure that the connection is tight, which increases the complexity and time consumption of the operation. Moreover, since each step requires careful operation, the entire inspection process is relatively slow, which reduces production efficiency. Utility Model Content

[0008] In order to overcome the shortcomings of traditional detection methods, such as complex operation and inaccurate detection, the technical problem of the utility model is to provide a disposable sterile syringe sealing detection device.

[0009] Technical solution: Disposable sterile syringe sealing detection equipment includes a support plate, a downward pressure assembly, a U-shaped tube, scale lines, a rubber stopper, a fixing plate, a rubber clamp I, a fixing seat, a controller and a fixing assembly. A downward pressure assembly is provided on the top of the support plate, and the lower side of the support plate is connected to the fixing seat. A placement groove is provided on the fixing seat, and the U-shaped tube is placed on the placement groove. Scale lines are engraved on both sides of the front side wall of the U-shaped tube, and rubber stoppers are plugged at both ends of the top of the U-shaped tube. The upper front side of the support plate is connected to the fixing plate, and the front side of the fixing plate is symmetrically connected to the rubber clamp I for fixing the syringe. The controller is installed on the lower front side of the support plate, and the support plate is provided with a fixing assembly.

[0010] In a preferred embodiment of the present invention, a notch matching the syringe port is provided on the rubber stopper, and the syringe can be plugged into the rubber stopper.

[0011] In a preferred embodiment of the present invention, the pressing assembly includes a cylinder, a pressure plate and a rubber block. The cylinder is installed on the top of the support plate. The cylinder telescopic rod passes through the support plate and is connected to the pressure plate. The rubber block is symmetrically connected to the bottom of the pressure plate.

[0012] In a preferred embodiment of the present invention, the fixing assembly includes a movable plate, a rubber clamping block II, a knob I, a threaded rod and a guide rod. The guide rods are symmetrically connected to the front side of the fixed plate, the movable plate is slidably connected between the guide rods, the middle part of the fixed plate is rotatably connected to the threaded rod, the threaded rod is threadedly connected to the movable plate, the front side of the threaded rod is connected to the knob I, and the rear side of the movable plate is symmetrically connected to the rubber clamping block II, and the rubber clamping block II is aligned with the rubber clamping block I.

[0013] In a preferred embodiment of the present invention, it also includes a knob II, a bidirectional screw rod, a movable vertical plate, an arc-shaped splint and a spring. The bidirectional screw rod is rotatably connected in the fixed seat, the left end of the bidirectional screw rod is connected to the knob II, the movable vertical plate is symmetrically slidably connected to the fixed seat, the movable vertical plate is respectively threadedly connected to the two ends of the bidirectional screw rod, the upper side of the movable vertical plate is slidably connected to the arc-shaped splint for clamping the U-shaped tube, and two springs are connected between the arc-shaped splint and the movable vertical plate.

[0014] In a preferred embodiment of the present invention, the support plate further includes footings, and the bottom of the support plate is symmetrically connected to the footings.

[0015] Compared with the existing technology, the present invention has the following advantages: 1. By inserting syringes at both ends of the U-shaped tube, pushing the piston rod of the syringe, and observing the flow of clean water, the sealing of the syringes on both sides can be detected. This method can effectively improve the detection efficiency. Compared with the existing method of pumping air and observing, this method is more accurate and avoids errors caused by possible leakage in the trachea.

[0016] 2. The rubber clamp I and the rubber clamp II are used together to effectively clamp the syringe and ensure stability during the detection process. The U-shaped tube is clamped by moving the arc-shaped clamp inward, which can prevent the U-shaped tube from being separated from the syringe due to unstable placement, further enhancing the stability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a cross-sectional view of the first part of the utility model.

[0019] Figure 3 It is a three-dimensional structural diagram of the fixed plate, movable plate, threaded rod and other components of the utility model.

[0020] Figure 4 It is a cross-sectional view of the second part of the present invention.

[0021] Figure 5 It is a three-dimensional structural diagram of the U-shaped tube, scale mark and rubber plug components of the utility model.

[0022] Figure 6 It is a sectional view of the third part of the present invention.

[0023] The markings of the components in the accompanying drawings are as follows: 1. Foot, 2. Support plate, 3. Cylinder, 4. Pressure plate, 41. Rubber block, 5. U-shaped tube, 51. Scale line, 52. Rubber stopper, 6. Syringe, 7. Fixed plate, 71. Rubber clamp I, 8. Moving plate, 81. Rubber clamp II, 9. Knob I, 10. Threaded rod, 11. Guide rod, 12. Fixed seat, 121. Placement slot, 13. Knob II, 14. Bidirectional screw, 16. Moving vertical plate, 17. Arc clamp, 18. Spring, 19. Controller. DETAILED DESCRIPTION

[0024] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those skilled in the art will recognize that terms such as "above," "below," "upwardly," and "downwardly" are used to describe the drawings and are not intended to limit the scope of the present invention as defined by the appended claims. Numerical designations such as "first" and "second" are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0025] Example: Disposable sterile syringe sealing test equipment, such as Figure 1-Figure 3 and Figure 5-Figure 6 As shown, it includes a foot 1, a support plate 2, a pressing component, a U-shaped tube 5, a scale line 51, a rubber plug 52, a fixing plate 7, a rubber clamping block I71, a fixing seat 12, a controller 19 and a fixing component. A pressing component is provided on the top of the support plate 2, and the lower side of the support plate 2 is connected to the fixing seat 12. The fixing seat 12 is provided with a placement groove 121, and the U-shaped tube 5 is placed on the placement groove 121. Scale lines 51 are engraved on the left and right sides of the front side wall of the U-shaped tube 5, and rubber plugs 52 are plugged at both ends of the top of the U-shaped tube 5. The rubber plug 52 is provided with a notch matching the port of the syringe 6, and the syringe 6 can be plugged into the rubber plug 52. The front side of the upper part of the support plate 2 is connected to the fixing plate 7 by bolts, and the front side of the fixing plate 7 is symmetrically connected to the rubber clamping block I71 for fixing the syringe 6. The controller 19 is installed on the front side of the lower part of the support plate 2. The support plate 2 is provided with a fixing component. The bottom of the support plate 2 is symmetrically connected to the foot 1, and the foot 1 is used to improve the stability of the detection equipment.

[0026] like Figure 1-Figure 2As shown, the pressing assembly includes a cylinder 3, a pressing plate 4 and a rubber block 41. The cylinder 3 is installed on the top of the support plate 2. The telescopic rod of the cylinder 3 passes through the support plate 2 and is connected to the pressing plate 4. The bottom of the pressing plate 4 is symmetrically connected to the rubber block 41.

[0027] like Figure 1-Figure 3 As shown, the fixed assembly includes a movable plate 8, a rubber clamping block II81, a knob I9, a threaded rod 10 and a guide rod 11. The guide rods 11 are welded symmetrically on the front side of the fixed plate 7. The movable plate 8 is slidably connected between the guide rods 11. The middle part of the fixed plate 7 is rotatably connected to the threaded rod 10. The threaded rod 10 is threadedly connected to the movable plate 8. The front side of the threaded rod 10 is connected to the knob I9. The rear side of the movable plate 8 is symmetrically connected to the rubber clamping block II81. The rubber clamping block II81 is aligned with the rubber clamping block I71.

[0028] like Figure 1 、 Figure 2 and Figure 4 As shown, it also includes a knob II 13, a bidirectional screw 14, a movable vertical plate 16, an arc-shaped splint 17 and a spring 18. The bidirectional screw 14 is rotatably connected to the fixed seat 12, and the knob II 13 is welded to the left end of the bidirectional screw 14. The movable vertical plate 16 is symmetrically slidably connected to the fixed seat 12. The movable vertical plate 16 is threadedly connected to both ends of the bidirectional screw 14. The upper side of the movable vertical plate 16 is slidably connected to the arc-shaped splint 17 for clamping the U-shaped tube 5, and two springs 18 are connected between the arc-shaped splint 17 and the movable vertical plate 16.

[0029] When testing the sealing performance of the disposable syringe 6, first fill the U-shaped tube 5 with clean water, place the U-shaped tube 5 on the placement groove 121, and then turn the knob II 13 to drive the bidirectional screw 14 to rotate. The bidirectional screw 14 drives the movable vertical plate 16 to move inward, and then drives the arc-shaped clamping plate 17 to move inward. The arc-shaped clamping plate 17 contacts both sides of the U-shaped tube 5, clamps the U-shaped tube 5 through the arc-shaped clamping plate 17, and the spring 18 is compressed accordingly. Then, the two syringes 6 are plugged into the rubber stopper 52. The ports of the syringes 6 are connected to the U-shaped tube 5 through the notch and sealed. The syringe 6 is clamped on the rubber clamping block Ⅰ71. After the syringe 6 is plugged in, the knob Ⅰ9 is turned to drive the threaded rod 10 to rotate. The threaded rod 10 drives the movable plate 8 to move backward along the guide rod 11, so that the rubber clamping block Ⅱ81 is close to the syringe 6 and cooperates with the rubber clamping block Ⅰ71 to clamp the syringe 6. After the syringe 6 is fixed, the controller 19 can be operated to start the cylinder 3, so that the telescopic rod of the cylinder 3 extends to drive the pressure plate 4 and the rubber block 41 to move downward. The piston rod of the syringe 6 is squeezed by the rubber block 41. The controller 19 can adjust the extension of the telescopic rod of the cylinder 3 The thrust is generated. If one of the syringes 6 leaks, the piston rod of the syringe 6 will push the clean water inside the U-shaped tube 5 to one side. By checking the scale line 51, you can know whether the water levels on both sides are the same. When both syringes 6 leak, the piston rods on both sides are pushed and the water level does not change. When the two syringes 6 are well sealed, the piston rods of the syringes 6 are not pushed and the rubber block 41 is squeezed. After the syringe 6 is tested, the telescopic rod of the cylinder 3 is shortened and reset, driving the pressure plate 4 and the rubber block 41 to move up and reset. The cylinder 3 It will automatically close, and then you can reverse the knob I9 to drive the threaded rod 10 to reverse, so that the movable plate 8 and the rubber clamping block II81 move forward and no longer fix the syringe 6, then you can take out the tested syringe 6, and continue to place a new syringe 6 for testing according to the above operation. When the work is finished and you need to remove and clean the U-shaped tube 5, you can reverse the knob II13 to drive the bidirectional screw rod 14 to reverse, so that the movable vertical plate 16 and the arc-shaped splint 17 move outward, and the spring 18 will reset accordingly. The arc-shaped splint 17 no longer limits the U-shaped tube 5, and the U-shaped tube 5 can be removed.

[0030] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art may make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. Disposable sterile syringe sealing test equipment, characterized by: The invention comprises a support plate (2), a pressing assembly, a U-shaped tube (5), a scale line (51), a rubber plug (52), a fixing plate (7), a rubber clamping block I (71), a fixing seat (12), a controller (19) and a fixing assembly. The top of the support plate (2) is provided with a pressing assembly. The lower side of the support plate (2) is connected to the fixing seat (12). The fixing seat (12) is provided with a placement groove (121). The U-shaped tube (5) is placed on the placement groove (121). Both sides of the front side wall of the U-shaped tube (5) are engraved with scale lines (51). Both ends of the top of the U-shaped tube (5) are plugged with rubber plugs (52). The front side of the upper part of the support plate (2) is connected to the fixing plate (7). The front side of the fixing plate (7) is symmetrically connected to the rubber clamping block I (71) for fixing the syringe (6). The front side of the lower part of the support plate (2) is installed with a controller (19). The support plate (2) is provided with a fixing assembly.

2. The disposable sterile syringe sealing detection device according to claim 1, characterized in that: The rubber stopper (52) is provided with a notch matching the port of the syringe (6), and the syringe (6) can be plugged into the rubber stopper (52).

3. The disposable sterile syringe sealing detection device according to claim 2, characterized in that: The pressing assembly comprises a cylinder (3), a pressing plate (4) and a rubber block (41); the cylinder (3) is installed on the top of the support plate (2); the telescopic rod of the cylinder (3) passes through the support plate (2) and is connected to the pressing plate (4); and the bottom of the pressing plate (4) is symmetrically connected to the rubber block (41).

4. The disposable sterile syringe sealing detection device according to claim 3, characterized in that: The fixing assembly comprises a movable plate (8), a rubber clamping block II (81), a knob I (9), a threaded rod (10) and a guide rod (11). The front side of the fixed plate (7) is symmetrically connected to the guide rod (11). The movable plate (8) is slidably connected between the guide rods (11). The middle part of the fixed plate (7) is rotatably connected to the threaded rod (10). The threaded rod (10) is threadedly connected to the movable plate (8). The front side of the threaded rod (10) is connected to the knob I (9). The rear side of the movable plate (8) is symmetrically connected to the rubber clamping block II (81). The rubber clamping block II (81) and the rubber clamping block I (71) are aligned with each other.

5. The sealing detection device for disposable sterile syringes according to claim 4, characterized in that: The invention also includes a knob II (13), a bidirectional screw rod (14), a movable vertical plate (16), an arc-shaped clamping plate (17) and a spring (18). The fixed seat (12) is rotatably connected to the bidirectional screw rod (14). The left end of the bidirectional screw rod (14) is connected to the knob II (13). The fixed seat (12) is symmetrically slidably connected to the movable vertical plate (16). The movable vertical plate (16) is respectively threadedly connected to the two ends of the bidirectional screw rod (14). The upper side of the movable vertical plate (16) is slidably connected to the arc-shaped clamping plate (17) for clamping the U-shaped tube (5). Two springs (18) are connected between the arc-shaped clamping plate (17) and the movable vertical plate (16).

6. The sealing detection device for disposable sterile syringes according to claim 5, characterized in that: It also includes a foot (1), and the bottom of the support plate (2) is symmetrically connected to the foot (1).

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