Needle inspection device

Abstract

The utility model relates to the technical field of needle inspection, in particular to a needle inspection device, which comprises a control box used for controlling air pressure and water pressure, and is characterized in that an output end of the control box is provided with an output pipe used for outputting air and water, one end of the output pipe is communicated with a multi-way through valve, and the other end of the output pipe is communicated with a control box. The multi-way valve is communicated with a plurality of needle bodies arranged on the adjusting frame through hoses, the inspection efficiency is improved, the complexity of manual operation is reduced, the accuracy and stability of inspection results are guaranteed by controlling air pressure and water pressure, and the needle type product inspection device is very suitable for large-scale and high-efficiency needle type product inspection requirements.

Description

Technical Field

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

[0002] When using a syringe to manually test the water and air permeability of the reagent needle, the water column needs to be ejected straight, and then the water in the needle needs to be shaken out and left to dry for 12 hours. When testing for air tightness, one end of the reagent needle needs to be blocked and the other end connected to the syringe. The syringe is compressed with air and then left to stand in water to check for leaks.

[0003] Some of the existing technologies use simple devices consisting of two syringes and several one-way valves, but they still require manual operation. Insufficient air pressure in the syringe may cause the water in the needle to not be completely emptied, and manual water drying is required. The air pressure and water flow are unstable, which poses risks for judging the quality of the material. In addition, only one needle can be inspected at a time, and the inspection efficiency is relatively low. Therefore, this technical solution is proposed for improvement. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art in that the steps for testing and cleaning the air tightness of reagent needles are complicated and affect the testing efficiency, and to provide a needle testing device.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical solution: a needle inspection device, including a control box for controlling air pressure and water pressure, an output end of the control box is provided with an output pipe for outputting gas and water, one end of the output pipe is connected to a multi-way valve, and the multi-way valve is connected to multiple needle bodies arranged on an adjustment frame through a hose.

[0006] Furthermore, the adjustment frame includes a support plate, a lifting rod is provided on the upper part of the support plate, a mounting plate is provided on the upper part of the lifting rod, a plurality of holes for placing the needle body are provided on the mounting plate, and a stopper for clamping the needle body is provided on the upper part of the hole.

[0007] Furthermore, the lifting rod is two relatively vertically arranged screw rods, and the mounting plate is horizontally arranged between the two screw rods.

[0008] Furthermore, a silicone pad for blocking the outlet of the needle body is provided on the upper surface of the support plate.

[0009] Furthermore, a clamping device for stabilizing the needle body is provided on the upper portion of the support plate. The clamping device is two cylinders arranged opposite to each other, and clamping plates are arranged opposite to each other at the output ends of the two cylinders.

[0010] Furthermore, an electrical interface, a water interface and an air interface are provided on the side of the control box, an air pressure valve connected to the air interface and a water pump connected to the water interface are provided inside the control box, a control box is provided on the inner wall of the control box, and an adjusting knob for adjusting the output pressure of the air interface is provided on the side of the control box, and the outlets of the air pressure valve and the water pump are connected to the output pipe through a three-way valve.

[0011] The beneficial effects of the embodiments of the present utility model are as follows: each port is respectively connected to the needle body on the adjustment frame through a hose, and the multi-way valve can selectively open or close each channel as needed, so as to realize the inspection of multiple needle bodies at the same time or in sequence, which greatly improves the inspection efficiency. When the inspection is carried out, the mounting plate moves downward, and the silicone pad blocks the outlet of the needle body to ensure the sealing when the air is introduced, while also eliminating the need for manual control. When cleaning, the screw rod controls the mounting plate to rise, and the outlet of the needle body is opened to facilitate water flushing. After the water channel inspection is completed, the air pressure valve is started again to introduce compressed air into the needle body, and the water in the needle is emptied and blown dry by the high-pressure gas. There is no need to dry it for 12 hours, which increases the drying rate. It not only improves the inspection efficiency and reduces the complexity of manual operation, but also ensures the accuracy and stability of the inspection results by controlling the air pressure and water pressure. It is very suitable for large-scale and high-efficiency inspection needs of needle products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the upper cross-sectional structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the lifting frame structure of the utility model;

[0015] In the figure: 1. Control box; 101. Electrical interface; 102. Air interface; 103. Water interface; 104. Control button; 105. Pressure gauge; 2. Air pressure valve; 3. Water pump; 4. Control box; 401. Adjustment knob; 5. Output pipe; 501. Multi-way valve; 6. Support plate; 601. Screw rod; 602. Mounting plate; 603. Stop block; 604. Silicone pad; 7. Cylinder; 701. Clamp. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] See also Figures 1 to 3The present invention discloses a needle inspection device, which mainly includes a control box 1, a multi-way valve 501, an adjustment frame, and components such as hoses connecting them. The control box 1 serves as the control part of the entire device. The control box 1 is responsible for providing stable air pressure and water pressure. An electrical interface 101, a water interface 103, and an air interface 102 are provided on the side to facilitate external power, water, and air sources. An air pressure valve 2 connected to the air interface 102 and a water pump 3 connected to the water interface 103 are installed inside the control box 1. A control button 10 is provided on the upper side of the control box 1. 4. In order to achieve accurate control of gas and water, a control box 4 is also provided on the inner wall of the control box 1 for integrating the control circuit. The side of the control box 4 is equipped with an adjusting knob 401. The user can adjust the output pressure of the gas interface 102 by rotating the adjusting knob 401 to ensure that the air pressure during the inspection process is stable and adjustable. A pressure gauge 105 for detecting the output air pressure is provided on the top of the control box 1 to improve the controllability of the adjustment. The outlets of the air pressure valve 2 and the water pump 3 are connected to the output pipe 5 through a single three-way valve to realize the switching output of gas and water.

[0018] The end of the output tube 5 is connected to a multi-way valve 501. The multi-way valve 501 has multiple output ports, each of which is connected to the needle body on the adjustment frame through a hose. The multi-way valve 501 can selectively open or close each channel as needed, thereby realizing simultaneous or sequential inspection of multiple needle bodies, greatly improving inspection efficiency.

[0019] The connected adjustment frame is used to fix and support the needle body to be inspected. The adjustment frame includes a support plate 6, a lifting rod and a mounting plate 602. The support plate 6 serves as a base to firmly support the entire structure. The lowering rod is two relatively vertically arranged screw rods 601. The driving motor of the screw rod 601 is set at the bottom of the support plate 6 (omitted in the figure). By rotating the screw rod 601, the height of the mounting plate 602 can be accurately adjusted to adapt to needle bodies of different lengths. There are multiple holes for placing needle bodies evenly distributed on the mounting plate 602. A stop block 603 is designed on the upper part of each hole for clamping and fixing the needle body to prevent it from falling off during the inspection process. In addition, in order to block the outlet of the needle body for air tightness testing, a layer of silicone pad 604 is also affixed to the upper surface of the support plate 6. When the test is carried out, the mounting plate 602 moves downward, and the silicone pad 604 blocks the outlet of the needle body to ensure the sealing when air is introduced. At the same time, manual control is also eliminated. During cleaning, the screw rod 601 controls the mounting plate 602 to rise, and the outlet of the needle body is opened to facilitate water flushing and improve convenience.

[0020] In order to improve the stability during the inspection process, a clamping device for stabilizing the needle body is also installed on the upper part of the support plate 6. The clamping device consists of two relatively arranged cylinders 7. The output ends of the cylinders 7 are each connected to a clamping plate 701. Through the telescopic movement of the cylinders 7, the clamping plate 701 can clamp or release the needle body to ensure that the needle body will not be displaced due to external force during the inspection, thereby ensuring stability during the inspection and improving the inspection effect.

[0021] Inspection process: Insert the needle bodies to be inspected into the holes on the mounting plate 602 and secure them with the stopper 603. Adjust the height of the lifting rod as needed so that the outlet of the needle body is in close contact with the silicone pad 604. The cylinder 7 extends the clamping plate 701 to clamp the lower part of the needle body. Start the control box 1 and set the required air pressure value by adjusting the knob 401. Adjust the inspection pressure according to the value displayed on the pressure gauge 105. Check each needle body for leaks. After the airtightness test is completed, close the air circuit and select the water circuit. Start the water pump 3 to allow water to enter the needle body through the hose for water flow test. Observe whether the water column is straight. After the water circuit test is completed, start the air pressure valve 2 again and introduce compressed air into the needle body. The high-pressure gas will empty the water in the needle and blow it dry. This eliminates the need for a 12-hour drying process and increases the drying rate. This not only improves inspection efficiency and reduces the complexity of manual operation, but also ensures the accuracy and stability of the inspection results by controlling the air and water pressures. It is very suitable for large-scale, high-efficiency inspection of needle products.

[0022] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0025] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A needle inspection device, comprising a control box (1) for controlling air pressure and water pressure, characterized in that: The output end of the control box (1) is provided with an output pipe (5) for outputting gas and water, one end of the output pipe (5) is connected to a multi-way valve (501), and the multi-way valve (501) is connected to a plurality of needle bodies provided on the adjustment frame through a hose.

2. The needle inspection device according to claim 1, characterized in that: The adjustment frame comprises a support plate (6), a lifting rod is provided on the upper part of the support plate (6), a mounting plate (602) is provided on the upper part of the lifting rod, a plurality of holes for placing the needle body are provided on the mounting plate (602), and a stopper (603) for clamping the needle body is provided on the upper part of the hole.

3. The needle inspection device according to claim 2, characterized in that: The lifting rods are two relatively vertically arranged screw rods (601), and the mounting plate (602) is horizontally arranged between the two screw rods (601).

4. The needle inspection device according to claim 2, characterized in that: The upper surface of the support plate (6) is provided with a silica gel pad (604) for blocking the outlet of the needle body.

5. The needle inspection device according to claim 3, characterized in that: A clamping device for stabilizing the needle body is provided on the upper portion of the support plate (6), wherein the clamping device is two cylinders (7) arranged opposite to each other, and clamping plates (701) are arranged opposite to each other at the output ends of the two cylinders (7).

6. The needle inspection device according to claim 1, characterized in that: The control box (1) is provided with an electrical interface (101), a water interface (103) and an air interface (102) on the side thereof; an air pressure valve (2) in communication with the air interface (102) and a water pump (3) in communication with the water interface (103) are provided inside the control box (1); a control box (4) is provided on the inner wall of the control box (1); a regulating knob (401) for regulating the output pressure of the air interface (102) is provided on the side thereof; the outlets of the air pressure valve (2) and the water pump (3) are in communication with the output pipe (5) via a three-way valve.

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