A syringe sliding performance testing device

Abstract

The utility model discloses a syringe sliding performance testing device, it includes: bottom plate, the left and right ends of bottom plate upper surface are fixedly connected with cylinder, baffle respectively, be provided with the pressing plate between cylinder and baffle, the upper surface of bottom plate is provided with the clamping groove, and the lower end of pressing plate is connected with the clamping groove, the upper surface of bottom plate is provided with the groove, when using device, the inner wall of groove, pressing plate, baffle all are contacted with the surface of syringe, and the output of cylinder is fixedly connected with strain type force sensor, and the inductive end of strain type force sensor is fixedly connected with the docking sleeve, and the side surface of strain type force sensor is fixedly connected with the reinforcing pipe, and the one end of reinforcing pipe away from strain type force sensor is fixedly connected with the power supply block, and the power cord of strain type force sensor passes through reinforcing pipe and is fixedly connected with power supply block. Through above -mentioned structure, improve the convenience of replacing syringe, improve the overall efficiency of syringe sliding property test work.

Description

Technical Field

[0001] This utility model relates to the field of syringe performance testing technology, and in particular to a syringe sliding performance testing device. Background Technology

[0002] In the medical field, syringes are commonly used medical devices, and their sliding performance directly affects the safety and reliability of their use. Therefore, accurate testing of syringe sliding performance is crucial. Existing testing devices often involve cumbersome operations when changing syringes to be tested, requiring a lot of time and effort. This not only reduces testing efficiency but may also affect the accuracy of the test due to the complexity of the operation. At the same time, when testing the resistance encountered during sliding, traditional devices mostly use a single push-pull method, lacking a mechanism for repeated testing. This makes it difficult to comprehensively and accurately simulate various sliding conditions of syringes in actual use, thus affecting the practicality of syringe sliding performance testing devices. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a syringe sliding performance testing device that facilitates quick replacement of the syringe to be tested, while using repeated push and pull to test the resistance encountered during the sliding process, thereby improving the user comfort of the testing device.

[0004] This utility model also provides a syringe sliding performance testing device, comprising: a base plate, a cylinder and a baffle fixedly connected to the left and right ends of the upper surface of the base plate respectively, a pressure plate provided between the cylinder and the baffle, a slot provided on the upper surface of the base plate, the lower end of the pressure plate engaging with the slot, a groove provided on the upper surface of the base plate, wherein when the device is used, the inner wall of the groove, the pressure plate, and the baffle are all in contact with the surface of the syringe, a strain gauge force sensor fixedly connected to the output end of the cylinder, a mating sleeve fixedly connected to the sensing end of the strain gauge force sensor, a reinforcing tube fixedly connected to the side surface of the strain gauge force sensor, a power supply block fixedly connected to the end of the reinforcing tube away from the strain gauge force sensor, and the power line of the strain gauge force sensor passing through the reinforcing tube and fixedly connected to the power supply block.

[0005] According to the syringe sliding performance testing device of this utility model, the cylinder, pressure plate, and baffle are distributed left and right opposite each other. When using the device, the left surface of the baffle contacts the fixed end of the syringe needle, and the pressure plate contacts the side surface of the syringe. This improves the stability of the syringe during the testing process.

[0006] According to the syringe sliding performance testing device of this utility model, the pressure plate has a C-shaped structure, and a rubber pad is fixedly connected to the upper inner wall of the pressure plate, the rubber pad being in contact with the side surface of the syringe. This improves the limiting effect of the pressure plate on the syringe.

[0007] According to the syringe sliding performance testing device of this utility model, a receiving slot is provided on the left surface of the baffle, and the fixed end of the syringe needle contacts the inner wall of the receiving slot. This improves the convenience of calibrating the syringe.

[0008] According to the syringe sliding performance testing device of this utility model, a slide rail is fixedly connected to the upper surface of the base plate, and the lower end of the power supply block is slidably connected to the slide rail. This improves the smoothness of the power supply block's translation.

[0009] According to the syringe sliding performance testing device of this utility model, a long rod is fixedly connected to the front surface of the power supply block, and the front end of the long rod is fixedly connected to the output end of the cylinder. This improves the movement stability of the power supply block.

[0010] According to the syringe sliding performance testing device of this utility model, a load-bearing plate is fixedly connected to the right surface of the long rod, and the reinforcing tube is embedded in the upper surface of the load-bearing plate. This reduces the load burden on the reinforcing tube.

[0011] According to the syringe sliding performance testing device of this utility model, the docking sleeve is made of silicone, and the diameter of the opening of the docking sleeve is smaller than the diameter of the sliding part of the syringe. This improves the convenience of using the docking sleeve.

[0012] Beneficial effects:

[0013] Compared with existing technologies, this syringe sliding performance testing device provides convenience for replacing the syringe under test through a cylinder, strain gauge force sensor, docking sleeve, pressure plate, limiting plate, groove, and receiving slot, and improves the overall efficiency of syringe sliding performance testing by repeatedly pushing and pulling to test the resistance encountered by the syringe during sliding. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a left-side front view of the structure of a syringe sliding performance testing device according to the present invention;

[0016] Figure 2 This is a front right view of the structure of a syringe sliding performance testing device according to the present invention;

[0017] Figure 3 This is a top view of the rear structure of a syringe sliding performance testing device according to the present invention;

[0018] Figure 4 This utility model relates to a syringe sliding performance testing device. Figure 3 Enlarged structural diagram at point A in the middle.

[0019] Legend:

[0020] 1. Base plate; 2. Cylinder; 3. Baffle; 4. Pressure plate; 5. Slot; 6. Slide rail; 7. Reinforcing tube; 8. Power supply block; 9. Strain gauge force sensor; 10. Connecting sleeve; 11. Rubber pad; 12. Long rod; 13. Load-bearing plate; 14. Groove; 15. Socket. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model discloses a syringe sliding performance testing device, comprising: a base plate 1, with a cylinder 2 and a baffle 3 fixedly connected to the left and right ends of the upper surface of the base plate 1 respectively; a pressure plate 4 is disposed between the cylinder 2 and the baffle 3; a slot 5 is provided on the upper surface of the base plate 1, with the lower end of the pressure plate 4 engaging with the slot 5; and a groove 14 is provided on the upper surface of the base plate 1. When using the device, the inner wall of the groove 14, the pressure plate 4, and the baffle 3 are all in contact with the surface of the syringe. The cylinder 2, the pressure plate 4, and the baffle 3 are arranged relatively opposite each other. When using the device, the left surface of the baffle 3 is in contact with the fixed end of the syringe needle, and the pressure plate 4 is in contact with the syringe needle. The side surface of the syringe is in contact with the cylinder 2, which provides sliding tension and thrust for the sliding part of the syringe. The baffle 3 provides resistance to the thrust applied by the cylinder 2, and the pressure plate 4 provides resistance to the tension applied by the cylinder 2. The pressure plate 4 has a C-shaped structure, and a rubber pad 11 is fixedly connected to the upper inner wall of the pressure plate 4. The rubber pad 11 is in contact with the side surface of the syringe, and the rubber pad 11 increases the friction between the pressure plate 4 and the syringe. The left surface of the baffle 3 is provided with a socket 15, and the needle fixing end of the syringe is in contact with the inner wall of the socket 15. The socket 15 cooperates with the groove 14 to increase the convenience of calibrating the syringe.

[0023] Specifically, when adding the syringe to be tested, the syringe head is directly pushed into the inside of the socket 15, and then the syringe is placed flat inside the groove 14. Then the lower end of the pressure plate 4 is pressed into the slot 5. At this time, the left and right ends of the syringe are blocked by the baffle 3 and the pressure plate 4 respectively. When the cylinder 2 retracts, it pulls the sliding part of the syringe to the left. The friction between the sliding part and the main body provides the conditions for the syringe to slide to the left. However, the pressure plate 4 is located on the left side of the syringe finger contact part. Therefore, the pressure plate 4 prevents the syringe from sliding to the left on the surface of the base plate 1. When the cylinder 2 extends, it pushes the sliding part of the syringe to the right. The baffle 3 directly blocks the right end of the syringe. Therefore, the syringe sliding part will not be driven to the right by stress during the right sliding process.

[0024] A strain gauge force sensor 9 is fixedly connected to the output end of cylinder 2. The strain gauge force sensor 9 detects the resistance encountered by the cylinder 2 during the pulling and pushing of the syringe's sliding part. A mating sleeve 10 is fixedly connected to the sensing end of the strain gauge force sensor 9. The mating sleeve 10 is made of silicone, and the diameter of its opening is smaller than the diameter of the syringe's sliding part. The mating sleeve 10 integrates the syringe's sliding part with the strain gauge force sensor 9, ensuring that the syringe's sliding part is moved horizontally by the cylinder 2. A reinforcing tube 7 is fixedly connected to the side surface of the strain gauge force sensor 9. A power supply block 8 is fixedly connected to the end of the reinforcing tube 7 furthest from the strain gauge force sensor 9. The power cord of the variable force sensor 9 passes through the reinforcing tube 7 and is fixedly connected to the power supply block 8. The reinforcing tube 7 is used to increase the stability of the power supply to the strain gauge force sensor 9. A slide rail 6 is fixedly connected to the upper surface of the base plate 1. The lower end of the power supply block 8 is slidably connected to the slide rail 6. The slide rail 6 is used to increase the smoothness of the sliding of the power supply block 8. A long rod 12 is fixedly connected to the front surface of the power supply block 8. The front end of the long rod 12 is fixedly connected to the output end of the cylinder 2. A load-bearing plate 13 is fixedly connected to the right surface of the long rod 12. The reinforcing tube 7 is embedded in the upper surface of the load-bearing plate 13. The long rod 12 and the load-bearing plate 13 cooperate to reduce the load on the reinforcing tube 7 and reduce the risk of damage to the reinforcing tube 7.

[0025] Specifically, before pushing the syringe head into the socket 15, the movable end of the syringe is pushed into the docking sleeve 10 at an angle to temporarily integrate the syringe with the strain gauge force sensor 9. Then, the output end of the cylinder 2 is extended to push the syringe head into the socket 15. After the pressure plate 4 blocks the syringe, the syringe sliding performance test can be performed. During the extension and retraction of the cylinder 2, the long rod 12 and the reinforcing tube 7 transmit the pushing and pulling forces applied by the output end of the cylinder 2 to the power supply block 8 in real time, thereby ensuring that the power supply block 8 always maintains a position relative to the strain gauge force sensor 9.

[0026] Working principle: When using the device, firstly, the sliding part of the syringe and the strain gauge force sensor 9 are integrated using the docking sleeve 10. Then, the syringe is pushed into the groove 14 and the socket 15. Then, the pressure plate 4 provides resistance to the left end of the syringe. At this time, the cylinder 2 can be used to move the sliding part of the syringe. During the process of sliding the syringe, the test value of the strain gauge force sensor 9 is observed after pushing and pulling the syringe sliding part once. After the value is determined for the first time, the cylinder 2 is repeatedly extended and extended to test the durability of the syringe sliding part.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A syringe sliding performance testing device, characterized in that, include: A base plate (1) is provided with a cylinder (2) and a baffle (3) fixedly connected to the left and right ends of the upper surface of the base plate (1) respectively. A pressure plate (4) is provided between the cylinder (2) and the baffle (3). A slot (5) is provided on the upper surface of the base plate (1). The lower end of the pressure plate (4) is engaged with the slot (5). A groove (14) is provided on the upper surface of the base plate (1). When the device is used, the inner wall of the groove (14), the pressure plate (4), and the baffle (3) are all in contact with the surface of the syringe. A strain gauge force sensor (9) is fixedly connected to the output end of the cylinder (2). A mating sleeve (10) is fixedly connected to the sensing end of the strain gauge force sensor (9). A reinforcing tube (7) is fixedly connected to the side surface of the strain gauge force sensor (9). A power supply block (8) is fixedly connected to the end of the reinforcing tube (7) away from the strain gauge force sensor (9). The power line of the strain gauge force sensor (9) passes through the reinforcing tube (7) and is fixedly connected to the power supply block (8).

2. The syringe sliding performance testing device according to claim 1, characterized in that, The cylinder (2), pressure plate (4), and baffle (3) are arranged opposite each other on the left and right. When the device is in use, the left surface of the baffle (3) contacts the fixed end of the needle of the syringe, and the pressure plate (4) contacts the side surface of the syringe.

3. The syringe sliding performance testing device according to claim 1, characterized in that, The pressure plate (4) has a C-shaped structure, and a rubber pad (11) is fixedly connected to the upper inner wall of the pressure plate (4). The rubber pad (11) is in contact with the side surface of the syringe.

4. The syringe sliding performance testing device according to claim 1, characterized in that, The left surface of the baffle (3) is provided with a socket (15), and the needle fixing end of the syringe contacts the inner wall of the socket (15).

5. The syringe sliding performance testing device according to claim 1, characterized in that, The upper surface of the base plate (1) is fixedly connected to a slide rail (6), and the lower end of the power supply block (8) is slidably connected to the slide rail (6).

6. The syringe sliding performance testing device according to claim 1, characterized in that, A long rod (12) is fixedly connected to the front surface of the power supply block (8), and the front end of the long rod (12) is fixedly connected to the output end of the cylinder (2).

7. The syringe sliding performance testing device according to claim 6, characterized in that, A load-bearing plate (13) is fixedly connected to the right surface of the long rod (12), and the reinforcing tube (7) is embedded in the upper surface of the load-bearing plate (13).

8. The syringe sliding performance testing device according to claim 1, characterized in that, The docking sleeve (10) is made of silicone, and the diameter of the opening of the docking sleeve (10) is smaller than the diameter of the sliding part of the syringe.

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