CN216559571U - Hemodialyzer airtightness detection device - Google Patents

Abstract

The utility model discloses an air-tightness detection device for a hemodialyzer, which comprises an equipment base frame, a product placement position arranged on the equipment base frame, a first air cylinder arranged on the top of the product placement position, and a push plate connected with the first air cylinder. , the second cylinder located at the lower end of the product placement position, and the two side cylinders respectively arranged on both sides of the product placement position; the equipment also includes a detection pipeline for connecting with the hemodialyzer, and the detection pipeline is provided with an air inlet, The air inlet is connected with the upper blood chamber port and the lower blood chamber port of the hemodialyzer, and a first solenoid valve and a second solenoid valve are respectively provided between the air inlet and the upper blood chamber port and the lower blood chamber port. A pressure regulating valve, a precision pressure regulating valve and a leak detector are arranged in sequence. Improve the stability of the equipment, can effectively judge whether the product is qualified, the machine pipeline is perfect, there is no risk of gas leakage, and the production efficiency is improved. The whole system is safe and reliable, and the parameters of each link are transparent, adjustable and controllable.

Description

Hemodialyzer air tightness testing equipment

technical field

The utility model relates to the technical field of hemodialyzers, in particular to an air tightness detection device of a hemodialyzer.

Background technique

In the current technology, the hemodialyzer air-tightness detection equipment has a complex structure and poor stability, and cannot effectively detect whether the product is qualified or not. There is still air leakage between the pipelines of the detection equipment, resulting in low production efficiency and even product testing time. It is long, complicated in structure and inconvenient to install.

The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Utility model content

Based on the above reasons, the applicant proposes a device for detecting the air tightness of a hemodialyzer, aiming at solving the above problems.

In order to meet the above requirements, the purpose of the present invention is to provide a hemodialyzer airtightness detection equipment, including an equipment base frame, a product placement position arranged on the equipment base frame, and a first product placement position arranged on the top of the product placement position. an air cylinder, a push plate connected to the first air cylinder, a second air cylinder located at the lower end of the product placement position, and two side air cylinders respectively disposed on both sides of the product placement position;

The push plate is connected with the piston rod of the first cylinder, a buffer is arranged between the push plate and the casing of the first cylinder, and the push plate is provided with a dialysis port facing the product placement position a closed structure; the second cylinder is connected with a clamp, the clamp is used to clamp the hemodialyzer, the clamp corresponds to the product placement position, and the second cylinder is used to push the clamp to the pusher a plate; both of the side cylinders are provided with a contact structure, and the contact structure is used to close the opening of the hemodialyzer;

The device also includes a detection pipeline for connecting with the hemodialyzer, the detection pipeline is provided with an air inlet, and the air inlet is connected to the upper blood chamber port and the lower blood chamber port of the hemodialyzer, so A first solenoid valve and a second solenoid valve are respectively provided between the air inlet, the upper blood chamber port and the lower blood chamber port, and the air inlet is sequentially provided with a pressure regulating valve, a precision pressure regulating valve and leak detector.

In some examples of the present invention, the contact structure is a structure made of silicone material.

In some examples of the present invention, the contact structure is connected to the piston rod of the side cylinder for clamping the hemodialyzer.

In some examples of the present invention, the number of the dialysis port closure structures is two.

In some examples of the present invention, the first cylinder is connected with a speed regulating valve.

In some examples of the present invention, the second cylinder is connected with a speed regulating valve.

In some examples of the present invention, the side cylinder is connected with a speed regulating valve.

Compared with the prior art, the beneficial effect of the present utility model is: using the detection equipment proposed in the present application, the gas enters the inside of the hemodialyzer product through the double protection of the pressure regulating valve and the precision pressure regulating valve, and then is detected by the leak detector. Is it leaking. When the product is placed on the fixture, then the piston rod of the first cylinder pushes out the push plate, the dialysis port sealing structure blocks the two dialysis ports of the product, and the gas enters from the blood chamber port. After the product is filled with gas, the gas injection is stopped. The leak detector records the current gas pressure value for the first time. After a while, the leak detector detects the gas pressure value again, and compares it before and after to check whether the product leaks. Improve the stability of the equipment, can effectively judge whether the product is qualified, the machine pipeline is perfect, there is no risk of gas leakage, and the production efficiency is improved. The whole system is safe and reliable, and the parameters of each link are transparent, adjustable and controllable. The overall structure is simple, the installation is convenient, and the maintenance is simple. Clamping the hemodialyzer with the clamp will not damage the product.

The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the structural representation of the hemodialyzer air tightness detection equipment of the present utility model;

Fig. 2 is a schematic diagram showing the connection of the detection pipeline of the air tightness detection equipment of the hemodialyzer of the present invention.

reference number

100 Inspection equipment 101 Equipment base

102 Product placement position 103 First cylinder

104 Push plate 105 Second cylinder

106 Side Cylinder 107 Shock Absorber

108 Dialysis port closure structure 109 Clamp

110 First solenoid valve 111 Second solenoid valve

112 Pressure Regulator 113 Precision Pressure Regulator

114 Leak Tester 115 Speed Control Valve

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise" etc. The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , so it cannot be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

As shown in FIG. 1 and FIG. 2 , the present application proposes a hemodialyzer airtightness detection device 100 , which includes an equipment base frame 101 , which is arranged on a product placement position 102 of the equipment base frame 101 , and is arranged on the product The first air cylinder 103 at the top of the placing position 102 , the push plate 104 connected to the first air cylinder 103 , the second air cylinder 105 located at the lower end of the product placing position 102 , and the two sides of the product placing position 102 respectively. Two side cylinders 106;

The push plate 104 is connected with the piston rod of the first air cylinder 103, a buffer 107 is provided between the push plate 104 and the housing of the first air cylinder 103, and the push plate 104 is provided with a buffer 107 facing the The dialysis port sealing structure 108 of the product placement position 102; the second cylinder 105 is connected with a clamp 109, the clamp 109 is used to clamp the hemodialyzer A, the clamp 109 corresponds to the product placement position 102, the The second cylinder 105 is used to push the clamp 109 to the push plate 104, so that the dialysis port sealing structure 108 is connected to the dialysis port of the hemodialyzer A to achieve a sealing effect; the two side cylinders 106 are provided with Contact structure, which is used to close the opening of the hemodialyzer; specifically, the contact structure can be set in a plate shape, so that the contact structures on both sides clamp the hemodialyzer A, and the contact structure adopts a flexible material , keep the hemodialyzer A without damage.

As shown in FIG. 2 , the device further includes a detection pipeline for connecting with the hemodialyzer A, the detection pipeline is provided with an air inlet B, and the air inlet B is connected to the upper blood of the hemodialyzer A. The chamber port and the lower blood chamber port are connected, and a first solenoid valve 110 and a second solenoid valve 111 are respectively provided between the air inlet A and the upper blood chamber port and the lower blood chamber port. Port A is provided with a pressure regulating valve 112 , a precision pressure regulating valve 113 and a leak detector 114 in sequence. Specifically, the gas enters the pipeline through the pressure regulating valve. After the product is clamped by the cylinder, the solenoid valve 1 and solenoid valve 2 are opened, the gas enters the product through the blood chamber port, and the two dialysis ports on the side of the product are blocked. In this way, the gas can also pass through the leak detector 114, and the leak detector 114 records the current value. After a period of time, the leak detector 114 records the current value again, and compares the two values before and after. If the difference between the two values is large, it means that the product has If the air leakage is unqualified, on the contrary, if the difference between the two air pressure values of the product is small, it means that the product is qualified.

The upper blood chamber port and the lower blood chamber port of the hemodialyzer A are openings at the upper and lower ends of the structure, respectively, and the dialysis port is the side opening of the hemodialyzer A.

In one embodiment, the contact structure is a structure made of silicone material, and the contact structure is connected with the piston rod of the side cylinder 106 for clamping the hemodialyzer A.

In one embodiment, the number of the dialysis port closing structures 108 is 2, which corresponds to the hemodialyzer A.

In one embodiment, the first air cylinder 103, the second air cylinder 105, and the side air cylinder 106 are all connected with a speed regulating valve 115, and the speed regulating valve 115 is used to control the expansion and contraction speed of the cylinder, thereby ensuring that the expansion and contraction of the cylinder will not swing too much, It has a protective effect on the product and the cylinder.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (7)

1. A hemodialyzer air-tightness detection equipment is characterized in that, comprising equipment base frame, be arranged on the product placement position of described equipment base frame, be arranged on the first air cylinder at the top of described product placement position, and described a push plate connected to the first air cylinder, a second air cylinder located at the lower end of the product placement position, and two side air cylinders respectively arranged on both sides of the product placement position; The push plate is connected with the piston rod of the first cylinder, a buffer is arranged between the push plate and the casing of the first cylinder, and the push plate is provided with a dialysis port facing the product placement position a closed structure; the second cylinder is connected with a clamp, the clamp is used to clamp the hemodialyzer, the clamp corresponds to the product placement position, and the second cylinder is used to push the clamp to the pusher a plate; both of the side cylinders are provided with a contact structure, and the contact structure is used to close the opening of the hemodialyzer; The device also includes a detection pipeline for connecting with the hemodialyzer, the detection pipeline is provided with an air inlet, and the air inlet is connected to the upper blood chamber port and the lower blood chamber port of the hemodialyzer, so A first solenoid valve and a second solenoid valve are respectively provided between the air inlet, the upper blood chamber port and the lower blood chamber port, and the air inlet is sequentially provided with a pressure regulating valve, a precision pressure regulating valve and leak detector. 2 . The air-tightness detection device of the hemodialyzer according to claim 1 , wherein the contact structure is a structure made of silica gel material. 3 . 3 . The air-tightness detection device of the hemodialyzer according to claim 2 , wherein the contact structure is connected with the piston rod of the side air cylinder for clamping the hemodialyzer. 4 . 4 . The air-tightness detection device of the hemodialyzer according to claim 2 , wherein the number of the dialysis port sealing structures is 2. 5 . 5 . The air-tightness detection device of the hemodialyzer according to claim 2 , wherein the first cylinder is connected with a speed regulating valve. 6 . 6 . The air-tightness detection device of the hemodialyzer according to claim 1 , wherein the second cylinder is connected with a speed regulating valve. 7 . 7 . The air-tightness detection device of the hemodialyzer according to claim 1 , wherein a speed regulating valve is connected to the side cylinder. 8 .

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