End cover air tightness rapid detection device

Abstract

The utility model discloses an end cover air tightness rapid detection device. The device comprises a test unit and a power unit which are fixed on a workbench, one end of the test unit is connected with a pressure gauge, and the other end seals a connector of an end cover and conveys gas to the end cover. According to the scheme, the testing unit seals the connecting port of the end cover, air is supplied into the sealed end cover, the air tightness of the end cover and the top cover after being fixed is rapidly tested and judged by increasing air pressure, a feeding bag body does not need to be combined for testing, the testing cost is lower, and the efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of air tightness detection devices, and in particular to a rapid air tightness detection device for end covers. Background Art

[0002] Currently, patients with eating disorders or critically ill patients who cannot swallow independently and must rely on powered feeding often use feeding bags to provide nutrition for fluids. A feeding bag consists of a bag body, end caps, piping, a speed control switch, and a flow-stop clamp. The end caps connect to the bag body at one end and flexibly connect to the top cap at the other. Once tightened, the bag seals the contents, preventing contamination and degradation of the medicine or food in the bag from ambient air. During use, gas may be generated within the feeding bag, and the end caps and top cap must maintain a tight seal under air pressure.

[0003] According to the production standard, after the end cover and the top cover are sealed, if the top cover is not pushed out of the end cover under an air pressure of 35N, it is a qualified product.

[0004] In the prior art, the air tightness of the entire bag is usually tested after the cover and bag are combined. This method is too complicated. At the same time, if there is a sealing problem, the bag and the cover are scrapped at the same time, which is very costly.

[0005] Therefore, there is a need for an end cap air tightness detection device that can perform air tightness detection on the end caps separately after production is completed and quickly eliminate defective products. Summary of the Invention

[0006] In order to solve the above problems, this solution provides a device for quickly detecting the air tightness of an end cover.

[0007] To achieve the above purpose, the technical solution adopted in this scheme is: a rapid detection device for the air tightness of an end cover, comprising a test unit and a power unit fixed on a workbench, one end of the test unit is connected to a pressure gauge, and the other end seals the connection port of the end cover and delivers gas to the end cover.

[0008] Furthermore, the test unit and the test assembly include an expansion structure sleeved outside the gas pipe;

[0009] One end of the expansion structure is connected to the fixed end of the cover at the end of the gas pipe, and the other end is provided with an air inlet.

[0010] Furthermore, the air inlet is connected to the first air supply device through an air path.

[0011] Furthermore, the expansion structure is limited in the through hole of the bracket.

[0012] Furthermore, the expansion structure is an airbag.

[0013] Furthermore, the fixed end of the cover body includes an air outlet.

[0014] Furthermore, the other end of the gas pipe is connected to a second gas supply device.

[0015] Furthermore, the second air supply device is connected to a pressure gauge.

[0016] In summary, this solution has the following advantages:

[0017] The test unit provided in this solution seals the end cap connection port and sends air into the sealed end cap. By increasing the air pressure, the air tightness of the end cap and the top cap after fixation can be quickly tested and judged. There is no need to test the feeding bag body together, which reduces the testing cost and improves the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the end cover air tightness rapid detection device;

[0019] Figure 2 is a schematic diagram of the expanded structure.

[0020] in:

[0021] 1. Workbench;

[0022] 2. Test unit; 21. Bracket; 211. Through hole; 22. Test assembly; 221. Expansion structure; 2211. Air inlet; 222. Air pipe; 223. Cover fixing end; 2231. Air outlet; 224. First air supply device; 225. Second air supply device;

[0023] 3. Pressure gauge. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Example 1:

[0026] A quick detection device for air tightness of end caps, such as Figure 1 and 2 As shown, it includes a test unit 2 and a power unit fixed on a workbench 1, and the test unit 2 is connected to a pressure gauge 3.

[0027] The test unit 2 includes a test assembly 22 on a bracket 21. The test assembly 22 seals the connection port of the end cover and sends air into the sealed end cover to quickly test and judge the air tightness of the end cover and the top cover after they are fixed by increasing the air pressure.

[0028] The bottom of the bracket 21 is fixed on the workbench 1 , and a through hole 211 is defined in the middle thereof. The through hole 211 is used for limiting the position of the test component 22 .

[0029] The test assembly 22, the expansion structure 221 is arranged in the through hole 211 and is sleeved outside the gas conveying pipe 222, one end of the expansion structure 221 is connected with the cover fixed end 223 of the end of the gas conveying pipe 222, and the other end is provided with the air inlet 2211, and the first gas supply device 224 is connected through the gas path.

[0030] The first gas supply device 224 supplies gas to the expansion structure 221, controls the expansion and contraction of the expansion structure 221, and achieves the sealing effect, and in the embodiment, the expansion structure 221 is a gas bag, and the first gas supply device 224 is a gas cylinder.

[0031] The end cover is sleeved outside the cover fixed end 223, the cover fixed end 223 comprises the gas outlet 2231, and the gas enters the end cover in the sealed state to form the gas pressure.

[0032] The other end of the gas conveying pipe 222 is communicated with the second gas supply device 225, the gas of the second gas supply device 225 is transmitted to the gas outlet 2231 through the gas conveying pipe 222, and in the embodiment, the second gas supply device 225 is a gas cylinder.

[0033] The second gas supply device 225 is connected with the pressure gauge 3, and the pressure gauge 3 is used to detect the maximum pressure value borne by the end cover.

[0034] The use mechanism is further illustrated as follows:

[0035] In the production standard, after the end cover and the top cover are sealed, the top cover is not pushed out of the end cover under the gas pressure of 35N, that is, it is a qualified product, in order to avoid some extreme cases, the gas pressure resistance value of the qualified product is set to 40N when the scheme is used for testing, and the test steps are as follows:

[0036] S1, fixing the end cover

[0037] The formed end cover is sleeved outside the end cover fixed end, so that the end cover and the top cover above it are in a sealed and tight state.

[0038] S2, sealing the end cover

[0039] The expansion assembly is controlled to expand by the first gas supply device 224, the connecting port of the end cover is sealed by the expansion assembly, and a constant gas pressure is formed in the inner cavity of the end cover.

[0040] S3, gas pressure test

[0041] The second gas supply device 225 is connected with the gas conveying pipe 222 to transmit the gas into the end cover through the gas outlet 2231, and the gas pressure gradually increases until the top cover above the end cover is pushed out by the gas pressure.

[0042] S4, judging the test result

[0043] It is judged by the pressure gauge 3 that if the air pressure tolerance value of the tested end cap is ≥40N, it is a qualified product; if the air pressure tolerance value of the tested end cap is <40N, it is a defective product.

[0044] To sum up, the test unit 2 provided in the present application seals the connection port of the end cover, sends air into the sealed end cover, and quickly tests and judges the air tightness of the end cover and the top cover after they are fixed by increasing the air pressure. There is no need to combine the feeding bag body for testing, so the testing cost is lower and the efficiency is higher.

[0045] The above embodiments are intended only to illustrate the technical concepts and features of this solution. Their purpose is to enable those familiar with the art to understand the content of this solution and implement it accordingly. They are not intended to limit the scope of protection of this solution. Any equivalent transformations or modifications based on the spirit and essence of this solution shall be included in the scope of protection of this solution.

[0046] In the description of this solution, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components.

[0047] For ordinary technicians in this field, the specific meanings of the above terms in this solution can be understood according to specific circumstances.

[0048] It should be understood that the above-mentioned embodiments are merely exemplary and non-restrictive. Without departing from the basic principles of this solution, various obvious or equivalent modifications or substitutions that can be made by technicians in this field to the above details will be included in the scope of protection of this solution.

Claims

1. A rapid detection device for air tightness of an end cap, characterized by: It comprises a test unit (2) and a power unit fixed on a workbench (1); one end of the test unit (2) is connected to a pressure gauge (3), and the other end is sealed to a connection port of an end cover and supplies gas to the end cover.

2. The end cap airtightness rapid detection device according to claim 1, characterized in that: The test unit (2), the test assembly (22) comprises an expansion structure (221) sleeved outside the gas pipe (222); one end of the expansion structure (221) is connected to the cover fixed end (223) at the end of the gas pipe (222), and the other end is provided with an air inlet (2211).

3. The end cap airtightness rapid detection device according to claim 2, characterized in that: The air inlet (2211) is connected to the first air supply device (224) via an air path.

4. The device for rapid detection of air tightness of end caps according to claim 2, characterized in that: The expansion structure (221) is limited in the through hole (211) of the bracket (21).

5. The end cap airtightness rapid detection device according to claim 4, characterized in that: The expansion structure (221) is an airbag.

6. The end cap airtightness rapid detection device according to claim 2, characterized in that: The cover body fixed end (223) comprises an air outlet (2231).

7. The end cap airtightness rapid detection device according to claim 2, characterized in that: The other end of the gas delivery pipe (222) is connected to the second gas supply device (225).

8. The device for rapid detection of air tightness of end caps according to claim 7, characterized in that: The second air supply device (225) is connected to a pressure gauge (3).

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