A negative pressure soft bag rapid detection device

Abstract

This invention discloses a rapid testing device for negative pressure soft bags, comprising: a sealing base with a through-hole receiving channel, the receiving channel having a clamping part and a passing part, the clamping part being located above the passing part, the surface of the clamping part gradually increasing from the connection with the passing part towards the top surface of the sealing base; and a plugging member, the peripheral sidewall of which matches the surface of the clamping part, and having an air inlet hole through-hole in the axial direction, the plugging member being detachably installed on the clamping part. This invention solves the problem that during negative pressure soft bag sealing testing, the operator needs to hold the connection between the negative pressure soft bag and the air tube, which can easily cause operator fatigue due to prolonged work, leading to slippage of the negative pressure soft bag and affecting the testing efficiency. Furthermore, the hand gripping method cannot guarantee the sealing effect of the negative pressure soft bag, easily causing air leakage and unstable test air pressure, thus affecting the test results of the negative pressure soft bag's sealing performance.

Description

Technical Field

[0001] This invention relates to the field of negative pressure soft bag testing equipment, specifically to a rapid testing device for negative pressure soft bags. Background Technology

[0002] Currently, when performing sealing tests on negative pressure flexible bags, operators need to hold the connection between the bag and the air tube to achieve a sealed air intake. However, during production, prolonged labor can easily cause operator fatigue, leading to the bag slipping and affecting testing efficiency. Furthermore, holding the bag by hand cannot guarantee a proper seal, resulting in air leakage and unstable test pressure, which in turn affects the sealing test results. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this invention is to provide a rapid detection device for negative pressure soft bags.

[0004] To achieve the above objectives, the technical solution adopted by the present invention includes:

[0005] A sealing base is formed with a through-hole receiving channel. The receiving channel has a clamping part and a passing part. The clamping part is located above the passing part, and the surface of the clamping part gradually increases from the connection with the passing part to the top surface of the sealing base.

[0006] The plugging component has a peripheral sidewall that matches the surface of the clamping part and has an air inlet hole through it in the axial direction. The plugging component is detachably installed on the clamping part.

[0007] This application achieves sealing performance testing by inserting the bottom end of a negative pressure soft bag into the receiving part, then inserting the bottom end of a plug into the negative pressure soft bag, and pressing the plug into the receiving channel. This seals and compresses the upper part of the negative pressure soft bag by the plug and the clamping part. Then, air is introduced into the negative pressure soft bag through the air inlet provided on the plug, which is convenient to operate, simple in structure, and highly practical. At the same time, it can effectively avoid the problem of inaccurate sealing performance testing caused by manually gripping the opening of the negative pressure soft bag, thus improving the application effect. Moreover, this design can prevent the negative pressure soft bag from slipping during testing.

[0008] In the preferred embodiment of the aforementioned rapid testing device for negative pressure soft bags, the clamping part has a continuous and smooth conical surface. This design allows the inner and outer surfaces of the negative pressure soft bag to fit uniformly against the surfaces of the clamping part and the sealing base after it is clamped by the sealing base and the plugging member. This avoids bending of the surface of the negative pressure soft bag, further improving the sealing effect and testing efficiency of the negative pressure soft bag.

[0009] In the preferred technical solution of the above-mentioned negative pressure soft bag rapid detection device, the clamping part is inclined at 10-80° from the direction parallel to the axis to the direction away from the axis.

[0010] In the preferred technical solution of the above-mentioned negative pressure soft bag rapid detection device, the connection between the clamping part and the passing part is rounded.

[0011] In the preferred embodiment of the aforementioned rapid testing equipment for negative pressure soft bags, the compression fitting is made of rubber. Using a rubber compression fitting to press the negative pressure soft bag saves labor and improves the effectiveness of the application. Furthermore, because the compression fitting is lightweight and soft, it avoids deforming the negative pressure soft bag, thus ensuring the production quality of the negative pressure soft bag.

[0012] In the preferred technical solution of the above-mentioned negative pressure soft bag rapid detection device, an air inlet pipe is installed in the air inlet hole, and the air inlet pipe is used to connect to the air supply device.

[0013] In the preferred technical solution of the above-mentioned negative pressure soft bag rapid detection device, a foot switch and a pressure regulating valve are installed on the air inlet pipe.

[0014] In the preferred embodiment of the aforementioned negative pressure soft bag rapid testing device, a force-applying component is provided on the top surface of the sealing base. This force-applying component applies vertical pressure to the plugging component, ensuring that the inner and outer surfaces of the product are tightly fitted to the plugging component and the clamping part, respectively. By uniformly arranging at least two force-applying components around the periphery of the plugging component, the force applied to it is evenly distributed, allowing the outer surface of the plugging component to match and fit snugly against the surface of the clamping part, further improving the performance.

[0015] In the preferred embodiment of the aforementioned negative pressure soft bag rapid testing device, a pull rod is installed on the plugging component. It should be noted that two pull rods are provided; these rods are used to pull the plugging component upwards, thus facilitating operation by the staff.

[0016] In the preferred technical solution of the above-mentioned negative pressure soft bag rapid testing equipment, the sealing base is installed on the frame so that after the product is clamped by the sealing base and the plug, the product can extend out of the bottom end of the sealing base through the passage and be in a suspended state.

[0017] The beneficial effects of this invention are:

[0018] (1) This application controls the air supply device to introduce air into the air inlet pipe, and at the same time opens the foot switch so that the gas can enter the negative pressure soft bag through the air inlet pipe and air inlet hole. During the test, it is only necessary to observe whether the pressure value of the pressure regulating valve is stable. That is, when the pressure of the pressure regulating valve is at a stable value, it proves that the negative pressure soft bag has good sealing performance. When the pressure of the pressure regulating valve is fluctuating or lower than the normal value, it proves that there is a leak in the negative pressure soft bag. It is convenient to operate, simple in structure, and highly practical. At the same time, it can effectively avoid the problem of inaccurate sealing test caused by manually holding the opening of the negative pressure soft bag, thus improving the use effect of this application.

[0019] (2) This application provides at least two force-applying elements evenly on the periphery of the plugging element so that the force applied by the force-applying elements to the plugging element can be evenly distributed, thereby enabling the outer surface of the plugging element to match and fit with the surface of the clamping part, further improving the use effect. Attached Figure Description

[0020] Figure 1 This is the front view of the present invention;

[0021] Figure 2 This is a partial schematic diagram of the present invention after the frame has been removed;

[0022] Figure 3 A cross-sectional view of the sealing base and the plug;

[0023] In the picture:

[0024] Frame 10;

[0025] 1. Sealing base; 2. Receiving channel; 21. Clamping part; 22. Passing part; 3. Plug; 31. Air inlet; 4. Air inlet pipe; 5. Foot switch; 6. Pressure regulating valve; 7. Force application part; 8. Pull rod. Detailed Implementation

[0026] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] like Figures 1 to 3 As shown, a negative pressure soft bag rapid detection device of the present invention includes: a sealing base 1, which has a through-hole receiving channel 2, the receiving channel 2 having a clamping part 21 and a passing part 22, the clamping part 21 being located above the passing part 22, the surface of the clamping part 21 gradually increasing from the connection with the passing part 22 toward the top surface of the sealing base 1; a plugging member 3, the peripheral sidewall of which matches the surface of the clamping part 21, and an air inlet 31 being provided through in the axial direction, the plugging member 3 being detachably installed on the clamping part 21.

[0030] See Figures 1-3 The sealing base 1 can be square or cylindrical. The receiving channel 2 provided in the middle of the sealing base 1 is used for the negative pressure soft bag to pass through. The receiving channel 2 includes a clamping part 21 and a passing part 22. Taking the connection between the clamping part 21 and the passing part 22 as the rotation reference, the top of the clamping part 21 is inclined from the direction parallel to the central axis of the receiving channel 2 away from the central axis, so that the clamping part 21 has a continuous and smooth curved surface structure. It can be understood that the curved surface structure of the clamping part 21 can be regular, such as an inverted conical structure, or it can be irregular, such as an inverted trapezoidal structure. Correspondingly, the plugging member 3 can match the clamping part 21, so that the negative pressure soft bag located between the two can be effectively clamped and sealed.

[0031] Alternatively, the clamping part 21 can also be composed of continuous, non-smooth surfaces, such as a pyramid. The specific shape of the clamping part 21 is not limited, as long as it can match the outer surface of the plugging part 3 to form a pressure seal for the negative pressure soft bag.

[0032] It should be noted that the feed section 22 is columnar and has a small height, which is sufficient to allow the lower end of the negative pressure soft bag to extend out of the feed section 22, thereby facilitating the expansion of the negative pressure soft bag under pressure.

[0033] When a sealing test is required on a negative pressure soft bag, first insert the bottom end of the negative pressure soft bag into the feed part 22, then insert the bottom end of the plugging part 3 into the negative pressure soft bag, and press the plugging part 3 into the receiving channel 2 so that the upper part of the negative pressure soft bag is sealed and pressed by the plugging part 3 and the clamping part 21. Then, air is introduced into the negative pressure soft bag through the air inlet 31 provided on the plugging part 3, which can realize the sealing test of the negative pressure soft bag. The operation is convenient, the structure is simple, and the practicality is strong. At the same time, it can effectively avoid the problem of inaccurate sealing test caused by manually squeezing the opening of the negative pressure soft bag, thus improving the application effect. After the test is completed, the plugging part 3 can be removed and the negative pressure soft bag to be tested can be reinstalled.

[0034] In other possible embodiments, a first annular groove is formed along the horizontal plane of the clamping part 21, and a sealing rubber ring is installed in the annular groove. A second annular groove is formed on the outer surface of the plugging member 3. When the plugging member 3 and the clamping part 21 seal and press the negative pressure soft bag tightly, the negative pressure soft bag enters the second annular groove through the sealing rubber ring. With this arrangement, the sealing effect of the plugging member 3 and the sealing base 1 on the opening of the negative pressure soft bag can be further improved, thereby improving the accuracy of the negative pressure soft bag detection in this application.

[0035] In other possible embodiments, the top surface of the sealing base 1 is provided with a clamping member for forming a clamping force on the negative pressure soft bag.

[0036] It is understood that the clamping component can be a driving cylinder, that is, the extended shaft end of the driving cylinder presses the opening end of the negative pressure soft bag onto the sealing base 1, thereby facilitating the insertion of the plugging component 3 into the opening of the negative pressure soft bag and improving the application effect. After the negative pressure soft bag is tested, the extended shaft end of the driving cylinder is controlled to retract, and the negative pressure soft bag can be removed, which is convenient to operate.

[0037] In one embodiment, the sealing base 1 is mounted on the frame 10 so that after the product is clamped by the sealing base 1 and the plug 3, the product can extend out of the bottom end of the sealing base 1 through the passage part 22 and be in a suspended state.

[0038] See Figure 1 This setting allows for adjustment of the height of the sealing base 1, facilitating operators to perform sealing tests on the negative pressure soft bag and improving product testing efficiency.

[0039] In one embodiment, the clamping portion 21 has a continuous and smooth conical surface.

[0040] See Figure 3By setting the clamping part 21 to have a smooth conical surface, the inner and outer surfaces of the negative pressure soft bag can be evenly attached to the surfaces of the plugging part 3 and the clamping part 21 after the negative pressure soft bag is clamped by the sealing base 1 and the plugging member 3, so as to avoid the problem of bending of the surface of the negative pressure soft bag, thereby further improving the sealing effect of the negative pressure soft bag and improving the detection efficiency of the negative pressure soft bag.

[0041] In one embodiment, the clamping part 21 is tilted 10-80° from the direction parallel to the axis to the direction away from the axis.

[0042] See Figure 3 The sealing base 1 is detachably mounted on the frame 10 by bolts, thereby enabling the replacement of the sealing base 1. When the opening of the negative pressure soft bag is small, a sealing base 1 with an inclination angle of 10° can be selected. When the opening of the negative pressure soft bag is large, a sealing base 1 with an inclination angle of 80° can be selected, thereby improving the applicability of this application to negative pressure soft bags of different sizes.

[0043] In one embodiment, the connection between the clamping part 21 and the guide part 22 is rounded.

[0044] See Figure 3 By setting the connection between the clamping part 21 and the passing part 22 to a rounded corner, when the negative pressure soft bag is inflated, the surface of the negative pressure soft bag will be pressed against the connection between the clamping part 21 and the passing part 22. This setting can effectively reduce the possibility of the negative pressure soft bag being cut during inflation, thus protecting the negative pressure soft bag and improving the effectiveness of this application.

[0045] In one embodiment, the air inlet 31 is funnel-shaped on the side facing the sealing base 1. This arrangement allows the gas blown into the negative pressure soft bag through the air inlet 31 to be effectively dispersed, avoiding the problem of excessive airflow pressure from the air inlet 31 causing damage to the negative pressure soft bag.

[0046] In one embodiment, the plug 3 is made of rubber material.

[0047] It is understandable that the compression of the negative pressure soft bag by the rubber-made plug 3 can effectively reduce the physical effort required by the staff to handle the plug 3 and improve the use effect of this application. At the same time, since the plug 3 is lightweight and soft, it avoids the problem of the plug 3 pressing and deforming the negative pressure soft bag, thus ensuring the production quality of the negative pressure soft bag.

[0048] Correspondingly, while setting the compression member 3 to be made of rubber material, the compression member 3 and the clamping part 21 can be controlled to achieve an interference fit. Through this setting, the compression and sealing effect of the negative pressure soft bag can be further enhanced, and the use effect of this application can be improved.

[0049] In one embodiment, an air inlet pipe 4 is installed inside the air inlet 31, and the air inlet pipe 4 is used to connect to the air supply device.

[0050] The attached diagram does not show an air supply device, which may be an air pump. It should be noted that a connecting plate made of metal material can be fixed to the top of the plugging component 3. The connecting plate has a through hole, which is coaxially arranged with the air inlet hole 31 on the plugging component 3. The air inlet pipe 4 is fixed in the air inlet hole 31 through the connecting plate. This arrangement can effectively improve the connection strength of the air inlet pipe 4 on the plugging component 3, reduce the possibility of air leakage, and thus improve the detection effect of this application on sealed soft bags.

[0051] In one embodiment, a foot switch 5 and a pressure regulating valve 6 are installed on the air intake pipe 4.

[0052] See Figure 1 The pressure regulating valve 6 is located between the foot switch 5 and the air supply device. The foot switch 5 and the pressure regulating valve 6 are mature technologies and will not be described in detail in this application. After the negative pressure soft bag is sealed and clamped between the sealing base 1 and the plug 3, the air supply device is controlled to introduce air into the air inlet pipe 4. At the same time, the foot switch 5 is opened so that the gas can enter the negative pressure soft bag through the air inlet pipe 4 and the air inlet hole 31. During the test, it is only necessary to observe whether the pressure value of the pressure regulating valve 6 is stable. That is, when the pressure of the pressure regulating valve 6 is at a stable value, it proves that the negative pressure soft bag has good sealing performance. When the pressure of the pressure regulating valve 6 is fluctuating or lower than the normal value, it proves that there is a leak in the negative pressure soft bag.

[0053] In one embodiment, the top surface of the sealing base 1 is provided with a force application member 7. The force application member 7 applies vertical pressure to the plug member 3 so that the inner and outer surfaces of the product can be tightly fitted with the plug member 3 and the clamping part 21, respectively.

[0054] See Figure 1 , Figure 2 The force application component 7 can be a quick clamp or a drive cylinder. The quick clamp is a mature technology and will not be elaborated on. The force application component 7 may not be connected to the plugging component 3. That is, the force application component 7 can only press the plugging component 3 into the clamping part 21. After the negative pressure soft bag completes the sealing test, the plugging component 3 needs to be manually pulled upward from the clamping part 21 to remove the tested negative pressure soft bag. Alternatively, the force application component 7 may be connected to the plugging component 3. That is, the force application component 7 can press the plugging component 3 into the clamping part 21 and also pull the plugging component 3 away from the clamping part 21, thereby realizing automated pressing of negative pressure soft bags and improving the efficiency of negative pressure soft bag testing.

[0055] It should be noted that there are at least two force-applying members 7, which are evenly distributed on the sealing base 1 with the central axis of the accommodating space as the center. With this arrangement, the force applied by the force-applying members 7 to the plugging member 3 can be uniform, so that the outer surface of the plugging member 3 can match and fit with the surface of the clamping part 21, further improving the use effect.

[0056] In one embodiment, a pull rod 8 is mounted on the plug 3.

[0057] See Figure 2 There are two levers 8. The levers 8 are used to pull the plug 3 upward, so as to facilitate the operation of the staff.

[0058] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rapid detection device for negative pressure soft bags, characterized in that, include: A sealing base is formed with a through-hole receiving channel. The receiving channel has a clamping part and a passing part. The clamping part is located above the passing part. The surface of the clamping part gradually increases from the connection with the passing part to the top surface of the sealing base. The clamping part is a continuous and smooth conical surface. The clamping part is inclined at 10°-80° from the direction parallel to the axis to the direction away from the axis. The connection between the clamping part and the passing part is rounded. A pressure-pressing component has a peripheral sidewall that matches the surface of the clamping part and an air inlet hole that extends through it in the axial direction. The pressure-pressing component is detachably installed on the clamping part. The pressure-pressing component is made of rubber material. An air inlet pipe is installed in the air inlet hole. The air inlet pipe is used to connect to an air supply device. A foot switch and a pressure regulating valve are installed on the air inlet pipe. A pull rod is installed on the pressure-pressing component. The top surface of the sealing base is provided with a force application member. The force application member applies vertical pressure to the plugging member so that the inner and outer surfaces of the negative pressure soft bag can be tightly fitted to the plugging member and the clamping part, respectively. The sealing base is installed on the frame so that after the negative pressure soft bag is clamped by the sealing base and the plugging member, the negative pressure soft bag can extend out of the bottom end of the sealing base through the passage and be in a suspended state. A first annular groove is formed along the horizontal surface of the clamping part, and a sealing rubber ring is installed in the first annular groove. A second annular groove is formed on the outer surface of the plugging member. When the plugging member and the clamping part seal and press the negative pressure soft bag tightly, the negative pressure soft bag enters the second annular groove through the sealing rubber ring.

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