Aerodynamic tension quick measuring device

Abstract

The utility model discloses a kind of pneumatic tension quick measuring device, it is related to medical product detection device technical field, the device includes front plate, middle plate, limiting adjusting plate and back plate, the front plate, middle plate, limiting adjusting plate and back plate are sequentially connected by several connecting shafts, sliding block is arranged between the front plate and middle plate, the sliding block is sleeved on connecting shaft, sliding block mounting plate is fixedly arranged on the upper surface of the sliding block, positioning block is fixedly arranged on the upper surface of the sliding block mounting plate, the upper surface of the middle plate is provided with limiting head, the product to be measured is fixed on positioning block and limiting head, controller is arranged on the rear surface of the back plate, cylinder, drive rod and dynamometer are sequentially arranged on the front surface of the back plate, controller controls drive rod to drive dynamometer to move backward, dynamometer synchronously drives the product to be measured to stretch backward, and then whether the measured product is observed to fall off or damage, realize the tension quick measuring, convenient to use, greatly improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical product testing device technology, and in particular to a pneumatic tensile force rapid testing device. Background Technology

[0002] like Figure 1 As shown, the product under test is a disposable biopsy forceps. Before leaving the factory, the reliability of the multi-segment laser welding parts of the product needs to be tested. If the welding is poor, it will cause the jaws to not open or clamp tightly, resulting in product malfunction and directly affecting the use of the product.

[0003] There are two common tensile testing methods in existing technologies: one is using suspended weights, and the other is using an electronic universal tensile testing machine. The suspended weight method involves suspending the product under test at a high position and relying on the weight's own weight for testing. This method has the following drawbacks: cumbersome operation, space requirements, and the need to change weights for different tensile force requirements, resulting in low efficiency and often requiring two people to work together. The electronic tensile testing machine has the following drawbacks: high cost (approximately 20,000-50,000 RMB per machine), large size, and long setup and testing time, making it unsuitable for routine factory inspections and rapid testing. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing tensile testing methods not only occupy space but also have relatively low testing efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A pneumatic tensile force rapid testing device includes a front plate, a middle plate, a limit adjustment plate, and a rear plate. The front plate, middle plate, limit adjustment plate, and rear plate are sequentially connected by several connecting shafts. A slider is disposed between the front plate and the middle plate. The slider is fitted onto the connecting shafts and slidably connected to them. A slider mounting plate is fixedly disposed on the upper surface of the slider. A positioning block is fixedly disposed on the upper surface of the slider mounting plate. A limit head is disposed on the upper surface of the middle plate. The limit head and the positioning block are arranged opposite to each other. The product to be tested is fixed by the limit head and the positioning block.

[0007] A controller is provided on the rear surface of the rear plate, and a cylinder, a drive rod and a force gauge are sequentially provided on the front surface of the rear plate. One end of the cylinder is connected to the controller and the other end is fixedly connected to the rear surface of the limit adjustment plate. One end of the drive rod is connected to the cylinder and the other end passes through the limit adjustment plate and is connected to one end of the force gauge. The other end of the force gauge passes through the intermediate plate and is connected to the slider mounting plate.

[0008] Preferably, there are four connecting shafts, which are arranged in pairs, one above the other, on the left and right sides of the cylinder. The connecting shafts on both sides of the cylinder are at the same height and the connecting shafts fix the front plate, middle plate, limit adjustment plate and rear plate together.

[0009] Preferably, the surface of the positioning block is provided with a groove, and one end of the product to be tested is fitted into the groove.

[0010] Preferably, the limiting head is cylindrical, and the other end of the product to be tested is fitted onto the limiting head.

[0011] Preferably, the controller is a two-position five-way solenoid valve, and the controller is connected to a foot switch, allowing the operator to directly control the valve via the foot switch.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] (1) The pneumatic tensile force rapid testing device provided by this utility model includes a frame, controller, force gauge and product fixing device, which can directly and rapidly test the tensile force of the product. It has a short development cycle, low cost, small size, light weight and easy use, which greatly improves the testing efficiency.

[0014] (2) The pneumatic tensile force fast testing device provided by this utility model is equipped with a limit adjustment plate. Different tensile forces can be set by adjusting the position of the limit adjustment plate to adapt to different tensile force testing requirements and is widely applicable to different products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the product to be tested;

[0016] Figure 2 This is a schematic diagram of the structure of a pneumatic tensile force rapid testing device according to the present invention.

[0017] 1. Front plate, 2. Middle plate, 3. Limit adjustment plate, 4. Rear plate, 5. Connecting shaft, 6. Slider, 7. Slider mounting plate, 8. Positioning block, 9. Limit head, 10. Cylinder, 11. Drive rod, 12. Force gauge, 13. Groove, 14. Solenoid valve Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] This utility model discloses a pneumatic tensile force rapid testing device, such as Figure 2As shown, the cylinder 10 includes a front plate 1, a middle plate 2, a limit adjustment plate 3, and a rear plate 4. The front plate 1, middle plate 2, limit adjustment plate 3, and rear plate 4 are connected in sequence by several connecting shafts 5. A slider 6 is provided between the front plate 1 and the middle plate 2. The slider 6 is fitted onto the connecting shafts 5 and is slidably connected to the connecting shafts 5. Preferably, there are 4 connecting shafts 5, which are arranged in pairs, vertically and horizontally, on the left and right sides of the cylinder 10. The connecting shafts 5 on both sides of the cylinder 10 are at the same height. The connecting shafts 5 fix the front plate 1, middle plate 2, limit adjustment plate 3, and rear plate 4 together.

[0020] A slider mounting plate 7 is fixedly mounted on the upper surface of slider 6, and a positioning block 8 is fixedly mounted on the upper surface of slider mounting plate 7. A limit head 9 is provided on the upper surface of middle plate 2. The limit head 9 and the positioning block 8 are arranged opposite to each other. Preferably, the surface of positioning block 8 is provided with a groove 13, and the limit head 9 is cylindrical. Figure 1 The product under test is shown with one end clamped in the groove 13 and the other end fitted onto the limiting head 9. The limiting adjustment plate 3 can be adjusted to a fixed position by bolts, thereby controlling the force measurement range of the device. This device can achieve rapid adjustment from 0-200N.

[0021] The rear surface of the rear plate 4 is equipped with a controller and a handle. Preferably, the controller is an AC220V, two-position five-way solenoid valve 14, and the controller is connected to a foot switch, allowing the operator to directly control the start and stop of the solenoid valve 14 via the foot switch. The front surface of the rear plate is sequentially equipped with a cylinder 10, a drive rod 11, and a force gauge 12. The force gauge 12 is a Shuangjie LZ-20 tubular force gauge 12. One end of the cylinder 10 is connected to the controller, and the other end is fixedly connected to the rear surface of the limit adjustment plate 3. One end of the drive rod 11 is connected to the cylinder 10, and the other end passes through the limit adjustment plate 3 and is connected to one end of the outer sleeve of the force gauge 12. The inner sleeve of the force gauge 12 passes through the intermediate plate and is connected to the slider mounting plate 7.

[0022] Work steps:

[0023] Step 1: The staff fixes one end of the product to be tested onto the positioning block 8 and the other end onto the limiting head 9;

[0024] Step 2: Step on the foot switch. Cylinder 10 drives the control shaft and force gauge 12 to move backward.

[0025] Step 3: The spring balance 12 pulls the slider mounting plate 7 to move towards the rear plate 4, stopping when it reaches the limit adjustment plate 3.

[0026] Step 4: Observe whether the tested product has fallen off or been damaged. If it is not damaged or fallen off, it means that the tested product meets the requirements. Otherwise, it means that the tested product does not meet the requirements.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A pneumatic tensile force rapid testing device, characterized in that: The system includes a front plate, a middle plate, a limit adjustment plate, and a rear plate. These plates are sequentially connected by several connecting shafts. A slider is positioned between the front and middle plates, and the slider is fitted onto and slidably connected to the connecting shafts. A slider mounting plate is fixedly mounted on the upper surface of the slider, and a positioning block is fixedly mounted on the upper surface of the slider mounting plate. A limit head is provided on the upper surface of the middle plate, and the limit head and positioning block are positioned opposite each other. A controller is provided on the rear surface of the rear plate, and a cylinder, a drive rod and a force gauge are sequentially provided on the front surface of the rear plate. One end of the cylinder is connected to the controller and the other end is fixedly connected to the rear surface of the limit adjustment plate. One end of the drive rod is connected to the cylinder and the other end passes through the limit adjustment plate and is connected to one end of the force gauge. The other end of the force gauge passes through the intermediate plate and is connected to the slider mounting plate.

2. The pneumatic tensile force rapid testing device according to claim 1, characterized in that: The connecting shafts are provided in four pairs, arranged in parallel on the left and right sides of the cylinder, with the connecting shafts on both sides of the cylinder being at the same height.

3. The pneumatic tensile force rapid testing device according to claim 2, characterized in that: The positioning block has a groove on its surface, and one end of the product to be tested is fitted into the groove.

4. The pneumatic tensile force rapid testing device according to claim 3, characterized in that: The limiting head is cylindrical, and the other end of the product to be tested is fitted onto the limiting head.

5. A pneumatic tensile force rapid testing device according to claim 4, characterized in that: The controller is a two-position five-way solenoid valve, and the controller is connected to a foot switch.

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