Ruhr taper elastic pressure testing device

Abstract

The utility model relates to the field of Luer taper pressure testing, in particular to a Luer taper elastic pressure testing device which comprises a supporting frame, a motor fixedly connected to the supporting frame, a synchronous belt system fixedly connected to the motor, a transmission lead screw movably connected to the synchronous belt system, a moving device sleeved on the transmission lead screw, and a spring mandrel fixedly connected to the supporting frame. The lower portion of a moving seat in the moving device is sleeved on a spring mandrel, and buffer springs are wound on the spring mandrel at two ends of the moving seat. According to the utility model, the movable seat is movably connected with the buffer spring, and the force value transmitted by the force value sensor is buffered, so that the stability of the force value test is ensured, and unnecessary loss caused by the damage of the Luer taper due to an overlarge force value is avoided.

Description

Technical Field

[0001] The utility model relates to the field of Luer connector pressure testing, in particular to a Luer connector elastic pressure testing device. Background Art

[0002] The Luer connector is a standardized micro-vibration non-seepage connector that is connected by a male Luer connector and a matching female Luer connector. It is now widely used in medical and laboratory instruments.

[0003] In medical and laboratory instruments, the material requirements for each part of the Luer connector are higher than those for ordinary connectors, including the fact that the Luer connector must have a higher pressure resistance, so a pressure testing device is essential.

[0004] The existing Luer connector pressure test device adopts a direct connection method, and there is no buffer mechanism at the Luer connector interface. When the pressure test device transmits force to the inside of the Luer connector, the Luer connector will produce severe pressure overshoot for the sample with greater rigidity. The pressure test device cannot control the pressure application process, which is easy to cause the Luer connector to leak liquid or rupture and damage the connector, causing unnecessary losses. Utility Model Content

[0005] The utility model provides a Luer connector elastic pressure testing device, which solves the problem that during the process of transmitting force to the inside of the Luer connector by the existing Luer connector pressure testing device, pressure overshoot is serious and the pressure application process of the pressure testing device cannot be controlled, resulting in damage and waste of the Luer connector.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A Luer connector elastic pressure testing device comprises a support frame, a motor is fixedly connected to the support frame, the motor is fixedly connected to a synchronous belt system, the synchronous belt system is movably connected to a transmission screw, a moving device is sleeved on the transmission screw, the support frame is fixedly connected to a spring core shaft, the lower part of a moving seat in the moving device is sleeved on the spring core shaft, and buffer springs are wound on the spring core shafts at both ends of the moving seat.

[0008] Furthermore, the synchronous belt system comprises a synchronous pulley and a synchronous belt, the motor is fixedly connected to the synchronous pulley, the synchronous pulley is movably connected to the synchronous belt, and the synchronous belt is movably connected to the transmission screw.

[0009] Furthermore, the moving device includes a moving block and a moving seat, the lower part of the moving block is sleeved on the transmission screw rod, and the upper part of the moving block is movably connected to the moving seat through the force sensor.

[0010] Furthermore, a guide shaft is fixedly connected to the support frame, and the moving block of the moving device is sleeved on the guide shaft.

[0011] Furthermore, limit switches are fixedly connected to both sides of the transmission screw on the support frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model buffers the force transmitted by the force sensor by movably connecting the buffer spring through the movable seat, thereby ensuring the stability of the force test and avoiding unnecessary losses caused by damage to the Luer connector due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of the elastic device of the movable seat of the utility model

[0016] Figure 3 It is a side structural schematic diagram of the utility model;

[0017] Numbers in the figure: 1. Support frame; 2. Motor; 3. Synchronous pulley; 4. Limit switch; 5. Transmission screw; 6. Moving block; 7. Moving seat; 8. Guide shaft; 9. Buffer spring; 10. Spring core shaft; 11. Synchronous belt; 12. Force sensor; 13. Luer connector connection. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-3 , a Luer connector elastic pressure testing device comprises a support frame 1, to which a motor 2 is fixedly connected.

[0020] The motor 2 is fixedly connected to the synchronous pulley 3 , the synchronous pulley 3 is movably connected to the synchronous belt 11 , and the synchronous belt 11 is movably connected to the transmission screw 5 .

[0021] The moving device includes a moving block 6 and a moving seat 7 .

[0022] The moving device is sleeved on the transmission screw 5, and the moving device is driven to move as the transmission screw 5 rotates.

[0023] The support frame 1 is fixedly connected to a limit switch 4 to limit the moving range of the moving device on the transmission screw 5 .

[0024] The support frame 1 is fixedly connected to a guide shaft 8 , and a moving block 6 of the moving device is sleeved on the guide shaft 8 . The moving device needs to move along the guide shaft 8 .

[0025] A force sensor 12 is fixedly connected to the support frame 1 , and the moving block 6 transmits the force value to the moving seat 7 through the force sensor 12 .

[0026] The support frame is fixedly connected with a spring core shaft 10, the lower part of the moving seat 7 in the moving device is sleeved on the spring core shaft 10, and buffer springs 9 are wound on the spring core shafts 10 at both ends of the moving seat.

[0027] There is a Luer connector connection 13 on the mobile device. When the mobile device moves, the moving force is converted into pressure and transmitted to the Luer connector through the Luer connector connection 13 to complete the pressure test.

[0028] Working principle:

[0029] When the device is pressure tested, the Luer connector is first connected to the elastic pressure testing device via the Luer connector connection 13 .

[0030] Then the motor 2 is started, and the synchronous pulley 3 fixedly connected to the motor 2 rotates synchronously.

[0031] The synchronous pulley 3 rotates, driving the synchronous belt 12 to rotate, and the synchronous pulley 3 drives the transmission screw 5 to rotate.

[0032] The transmission screw 5 drives the moving device to move in a directional manner along the guide shaft 8 and the transmission screw 5 , and the moving block 6 of the moving device transmits the force value to the moving seat 7 through the force value sensor 12 .

[0033] When the moving seat 7 moves, along with the movement of the moving seat 7, the buffer spring 9 buffers the force transmitted from the force sensor 12, thereby ensuring the stability of the force measurement and avoiding the occurrence of excessive force fluctuations.

[0034] The force value of the movable seat 7 after being buffered by the buffer spring 9 is converted into pressure and transmitted to the Luer connector through the Luer connector connection 13. The force sensor 12 will record the corresponding force value and then complete the pressure test.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A Luer connector elastic pressure testing device, comprising a support frame, a motor fixedly connected to the support frame, the motor fixedly connected to a synchronous belt system, the synchronous belt system movably connected to a transmission screw, and a moving device sleeved on the transmission screw, characterized in that: The support frame is fixedly connected with a spring core shaft, the lower part of the moving seat in the moving device is sleeved on the spring core shaft, and buffer springs are wound on the spring core shafts at both ends of the moving seat.

2. The Luer connector elastic pressure testing device according to claim 1, characterized in that: The synchronous belt system consists of a synchronous pulley and a synchronous belt. The motor is fixedly connected to the synchronous pulley, the synchronous pulley is movably connected to the synchronous belt, and the synchronous belt is movably connected to the transmission screw.

3. The Luer connector elastic pressure testing device according to claim 1, characterized in that: The moving device comprises a moving block and a moving seat. The lower part of the moving block is sleeved on the transmission screw rod, and the upper part of the moving block is movably connected to the moving seat through a force value sensor.

4. The Luer connector elastic pressure testing device according to claim 1, characterized in that: The support frame is fixedly connected with a guide shaft, and the moving block of the moving device is sleeved on the guide shaft.

5. The Luer connector elastic pressure testing device according to claim 1, characterized in that: Limit switches are fixedly connected to both sides of the transmission screw rod on the support frame.

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