Tool for testing air tightness of regular four-way joint
By designing an automated positive four-way airtightness testing tooling, using structures such as main arm, side arm, threaded sleeve, screw and rubber pad, automated fixing and gas pressure detection are achieved, solving the burden and leakage problems caused by manual fixing, and improving the outbound pass rate and inspection reliability.
Patent Information
- Application Number
- CN202422327705.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The prior art Zhongzheng four-pass ventilation tightness test requires manual fixation, which leads to an increase in the arm burden of the tester, the product loosening and leakage probability increase, and the pass rate of out-of-stock.
A positive four-way airtightness testing tool is designed, using structures such as main arm, side arm, threaded sleeve, screw, disc and rubber pad. Through automatic fixing and sealing, gas pressure detection is achieved and manual operation is avoided.
It improves the degree of automation of tests, reduces the labor intensity of testers, enhances the reliability of airtightness detection, eliminates leakage, and improves the pass rate of outbound warehouses.
Smart Images

Figure CN223179694U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positive four-way airtightness testing, in particular to a positive four-way airtightness testing tooling. Background Art
[0002] A positive four-way is a common pipe connector, mainly used to change the fluid direction and divide a main pipe into two pipes flowing in different directions; before leaving the factory, the positive four-way needs to undergo an airtightness test. The existing test method is to completely immerse the product to be tested in water and observe whether there are bubbles emerging to ensure its normal use.
[0003] However, in the existing technology, during the testing process, the tester needs to manually fix the product to be tested throughout the process. This fixing method is very likely to increase the burden on the tester's arm, resulting in the loosening of the product to be tested, thereby reducing the passing rate of products leaving the warehouse. At the same time, it is also prone to leakage. Summary of the Invention
[0004] The purpose of the utility model is to provide a positive four-way airtightness testing tooling, aiming to solve the technical problem that in the existing technology, during the testing process, the tester needs to manually fix the product to be tested throughout the process. This fixing method is very likely to increase the burden on the tester's arm, resulting in the loosening of the product to be tested, thereby reducing the passing rate of products leaving the warehouse. At the same time, it is also prone to leakage.
[0005] To achieve the above purpose, a positive four-way airtightness testing tooling adopted by the utility model includes a main arm. Both ends of the main arm are provided with side arms. A threaded sleeve is provided at the middle of the main arm and one end of the side arm. A screw rod is arranged inside the threaded sleeve. One end of the screw rod is rotatably provided with a disc, and a rubber pad is arranged on the front end face of the disc.
[0006] Wherein, a plurality of limiting members are arranged on the outer side of the threaded sleeve. The limiting member includes a limiting rod and a fixing block. A limiting ring is arranged at one end of the limiting rod. The limiting rod is slidably connected with the fixing block and penetrates through the middle of the fixing block. The limiting rod is also fixedly connected with the disc and is located on the rear end face of the disc. The fixing block is fixedly connected with the threaded sleeve and is located on the outer side of the threaded sleeve.
[0007] Wherein, a knob is arranged at the other end of the screw rod, and a plurality of anti-slip protrusions are arranged on the outer side of the knob.
[0008] Wherein, a fixing rod is arranged at one end of the screw rod. The fixing rod has an external thread. A nut is arranged on the fixing rod, and the nut is adapted to the external thread. A circular groove is formed in the middle of the disc, and the fixing rod penetrates through the disc. The nut is located in the circular groove.
[0009] Wherein, the external thread extends to a midpoint of the length of the fixing rod.
[0010] Wherein, the rubber pad is fixedly connected to the disc by a plurality of screws, abuts against the front end face of the disc, and the plurality of screws are respectively located on the rear end face of the disc, and the plurality of limiting members and the plurality of screws are respectively arranged in a ring shape on the rear end face of the disc.
[0011] Wherein, the positive four-way airtightness test tooling further includes a lifting rod and a C-shaped plate. The lifting rod is fixedly connected to the C-shaped plate and is located above the C-shaped plate. The C-shaped plate is fixedly connected to the main arm and is located above the main arm.
[0012] A positive four-way airtightness test tooling of the present utility model includes a main arm. Both ends of the main arm are provided with side arms. A threaded sleeve is provided in the middle of the main arm and at one end of the side arm. A screw rod is arranged in the threaded sleeve. One end of the screw rod is rotatably provided with a disc. A rubber pad is arranged on the front end face of the disc. The rubber pad is cooperated with the disc and the screw rod. The workpiece is pressed by the disc, so that the inside of the workpiece is filled with gas to reach a predetermined pressure, thereby detecting whether there is a leakage phenomenon in the workpiece, improving the passing rate of the positive four-way joints when leaving the warehouse, and eliminating the leakage phenomenon after the positive four-way joints leave the warehouse; making users more assured when using the product, and effectively solving the technical problem that in the prior art, during the testing process, the tester needs to manually fix the product to be tested throughout the process. This fixing method is extremely likely to increase the burden on the tester's arm, resulting in the loosening of the product to be tested, thereby reducing the passing rate when leaving the warehouse, and at the same time, it is also likely to cause leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0014] Figure 1 is the three-dimensional perspective view of the present utility model.
[0015] Figure 2 is the front view of the present utility model.
[0016] Figure 3 is the Figure 2 cross-sectional view taken along line A-A of the present utility model.
[0017] Figure 4is of the present utility model Figure 3 The partial enlarged view at position B in
[0018] 101 - Main arm, 102 - Side arm, 103 - Threaded sleeve, 104 - Screw rod, 105 - Disc, 106 - Rubber pad, 107 - Limit rod, 108 - Fixed block, 109 - Limit ring, 110 - Knob, 111 - Anti-slip protrusion, 112 - Fixed rod, 113 - External thread, 114 - Nut, 115 - Round groove, 116 - Screw, 117 - Lifting rod, 118 - C-shaped plate Detailed implementation manners
[0019] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model
[0020] Please refer to Figures 1 to 4 , the present utility model provides a four-way airtightness test tooling, including a main arm 101, a lifting rod 117 and a C-shaped plate 118. Through the foregoing solution, the technical problem that in the prior art, during the testing process, the tester needs to manually fix the product to be tested throughout the process, this fixing method is extremely likely to increase the burden on the tester's arm, resulting in the loosening of the product to be tested, thereby reducing the passing rate of outgoing products, and at the same time, it is also easy to cause leakage
[0021] For this specific implementation manner, both ends of the main arm 101 are provided with side arms 102, both the middle of the main arm 101 and one end of the side arm 102 are provided with threaded sleeves 103, a screw rod 104 is arranged inside the threaded sleeve 103, one end of the screw rod 104 is rotatably provided with a disc 105, and a rubber pad 106 is arranged on the front end face of the disc 105. By connecting the disc 105 and the screw rod 104 and cooperating with the rubber pad 106, the disc 105 is used to press the workpiece, so that the inside of the workpiece is filled with gas to reach a predetermined pressure, to detect whether there is a leakage phenomenon in the workpiece, thereby improving the passing rate of outgoing four-ways and eliminating the leakage phenomenon after the four-ways are out of the warehouse; making users feel more at ease when using the product, thus effectively solving the technical problem that in the prior art, during the testing process, the tester needs to manually fix the product to be tested throughout the process, this fixing method is extremely likely to increase the burden on the tester's arm, resulting in the loosening of the product to be tested, thereby reducing the passing rate of outgoing products, and at the same time, it is also easy to cause leakage
[0022] Among them, a plurality of limiting members are arranged on the outer side of the threaded sleeve 103. The limiting members include a limiting rod 107 and a fixing block 108. A limiting ring 109 is arranged at one end of the limiting rod 107. The limiting rod 107 is slidably connected with the fixing block 108 and penetrates through the middle of the fixing block 108. The limiting rod 107 is also fixedly connected with the disc 105 and is located on the rear end face of the disc 105. The fixing block 108 is fixedly connected with the threaded sleeve 103 and is located on the outer side of the threaded sleeve 103. By arranging the limiting rod 107 and the fixing block 108, it is convenient to prevent the disc 105 from rotating when the screw rod 104 rotates, so as to ensure that the disc 105 can move horizontally under the push of the screw rod 104, thereby ensuring that while the rubber pad 106 applies pressure, gas leakage is avoided, and then the effect of airtightness testing is improved.
[0023] Secondly, a knob 110 is arranged at the other end of the screw rod 104. A plurality of anti-slip protrusions 111 are arranged on the outer side of the knob 110. By means of the knob 110, it is convenient to rotate the screw rod 104. The plurality of anti-slip protrusions 111 are convenient to improve the grasping force of the knob 110, so as to avoid slipping.
[0024] Thirdly, a fixing rod 112 is arranged at one end of the screw rod 104. The fixing rod 112 has an external thread 113. A nut 114 is arranged on the fixing rod 112, and the nut 114 is adapted to the external thread 113. A circular groove 115 is formed in the middle of the disc 105, and the fixing rod 112 penetrates through the disc 105. The nut 114 is located in the circular groove 115. By arranging the fixing rod 112, it is convenient for the disc 105 to rotate, so as to avoid rotating following the screw rod iva 104. The nut 114 can prevent the disc 105 from completely separating from the fixing rod 112.
[0025] In addition, the external thread 113 extends to the midpoint of the length of the fixing rod 112. Through this design, it is convenient to prevent the nut 114 from abutting against the disc 105, so that the disc 105 cannot rotate self.
[0026] At the same time, the rubber pad 106 is fixedly connected with the disc 105 through a plurality of screws 116 and abuts against the front end face of the disc 105. The plurality of screws 116 are respectively located on the rear end face of the disc 105. The plurality of limiting members and the plurality of screws 116 are respectively arranged in a ring shape on the rear end face of the disc 105. By arranging the screws 116, it is convenient to quickly disassemble and assemble the rubber pad 106, so as to facilitate the subsequent timely replacement of the rubber pad 106.
[0027] Finally, the lifting rod 117 is fixedly connected to the C-shaped plate 118 and is located above the C-shaped plate 118. The C-shaped plate 118 is fixedly connected to the main arm 101 and is located above the main arm 101. The setting of the lifting rod 117 facilitates lifting the tooling by the equipment, and then controlling the lifting of the tooling by the equipment, thereby avoiding direct operation of the tooling by the staff and reducing the labor intensity of the staff.
[0028] When using the present utility model, by aligning three of the pipes of the positive four-way pipe with the three discs 105 of the tooling, and using the rubber pads 106 to seal the pipes. At the same time, rotate the knob 110, so that the knob 110 drives the screw 104 to rotate. The screw 104 pushes the disc 105 to move horizontally under the action of the thread sleeve 103 and the limiting member. The disc 105 remains in a non-rotating state under the action of the fixed rod 112 and horizontally pushes the rubber pad 106, and the rubber pad 106 seals the pipe. Under the continuous rotation of the screw 104, the sealing performance between the rubber pad 106 and the positive four-way pipe can be improved. The fourth pipe is used to introduce gas to fill the inside of the positive four-way with gas until the gas reaches a predetermined pressure to detect whether there is a leakage phenomenon in the workpiece. Then, the gas leakage detection equipment is used to detect the gas leakage degree of the positive four-way pipe. In this way, the technical problem in the prior art that during the testing process, the tester needs to manually fix the product to be tested throughout the process is solved. This fixing method is extremely likely to increase the burden on the tester's arm, resulting in loosening of the product to be tested, thereby reducing the passing rate of products leaving the warehouse, and at the same time, it is also likely to cause leakage.
[0029] The above-disclosed is only a preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.
Claims
1. A positive four-way airtightness test tooling, characterized in that it includes a main arm, with side arms provided at both ends of the main arm. A threaded sleeve is provided at the middle of the main arm and one end of the side arm. A screw rod is arranged inside the threaded sleeve. A disc is rotatably arranged at one end of the screw rod, and a rubber pad is provided on the front end face of the disc.
2. The positive four-way airtightness test tooling according to claim 1, characterized in that a plurality of limiting members are provided on the outer side of the threaded sleeve. The limiting members include a limiting rod and a fixing block. A limiting ring is provided at one end of the limiting rod. The limiting rod is slidably connected to the fixing block and penetrates through the middle of the fixing block. The limiting rod is also fixedly connected to the disc and is located on the rear end face of the disc. The fixing block is fixedly connected to the threaded sleeve and is located on the outer side of the threaded sleeve.
3. The positive four-way airtightness test tooling according to claim 2, characterized in that a knob is provided at the other end of the screw rod, and a plurality of anti-slip protrusions are provided on the outer side of the knob.
4. The positive four-way airtightness test tooling according to claim 3, characterized in that a fixing rod is provided at one end of the screw rod. The fixing rod has an external thread. A nut is arranged on the fixing rod, and the nut is adapted to the external thread. A circular groove is provided in the middle of the disc, and the fixing rod penetrates through the disc. The nut is located in the circular groove.
5. The positive four-way airtightness test tooling according to claim 4, characterized in that the external thread extends to the midpoint of the length of the fixing rod.
6. The positive four-way airtightness test tooling according to claim 5, characterized in that the rubber pad is fixedly connected to the disc by a plurality of screws and abuts against the front end face of the disc. And the plurality of screws are respectively located on the rear end face of the disc. The plurality of limiting members and the plurality of screws are respectively arranged in a ring shape on the rear end face of the disc.
7. The positive four-way airtightness test tooling according to claim 6, characterized in that the positive four-way airtightness test tooling further includes a lifting rod and a C-shaped plate. The lifting rod is fixedly connected to the C-shaped plate and is located above the C-shaped plate. The C-shaped plate is fixedly connected to the main arm and is located above the main arm.