Towel rack air tightness testing device
By designing a towel rack airtightness testing device including a transparent detection box, air guide head, air pump and hose, the air tightness of the towel rack is detected by ozone gas, the problem of surface wetting and the inability to detect assembled heating equipment during the test in the prior art is solved, and fast and convenient airtightness judgment and sealing testing are achieved.
Patent Information
- Application Number
- CN202421852477.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-01
AI Technical Summary
When performing airtightness testing of existing liquid electric heating towel racks, they need to immerse the towel rack tube into water or spray soap liquid, resulting in wet surface and the assembled heating equipment cannot be detected, affecting the sealing test.
A towel rack airtight test device is designed, including a transparent detection box, air guide head, air pump and hose. Ozone gas is passed through the air guide head. If the towel rack has airtight defects, ozone will leak through the defects. Observe whether there is sky blue ozone on the surface to judge the airtightness.
The device can quickly and conveniently judge the airtightness of the electric towel rack, avoiding the trouble of surface wetting and subsequent cleaning and drying, and can directly test the sealing properties of the heating equipment and the towel rack pipe body.
Smart Images
Figure CN223005678U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric heating towel racks, and particularly relates to an airtightness testing device for a towel rack. Background Technique
[0002] After a liquid-type electric heating towel rack is processed, it needs to be subjected to an airtightness test to ensure that there is no liquid leakage during use. When the current liquid-type electric heating towel rack is subjected to an airtightness test, generally the towel rack tube body is immersed in water, and air is inflated into the tube body to observe whether there are bubbles generated to judge the airtightness, or soap liquid is sprayed on the surface of the towel rack tube body, and whether there are bubbles generated is observed after inflation to judge the airtightness. However, both of the above methods will wet the surface of the towel rack, and after the detection is completed, the surface of the towel rack tube body still needs to be dried and cleaned, which is rather troublesome, and the electric heating towel rack with the heating device assembled cannot be detected, and it is easy to soak the heating device. Therefore, the airtightness of the connection between the heating device and the tube body of the towel rack cannot be tested. Content of the Utility Model
[0003] Aiming at the above problems, the purpose of the present utility model is to provide an airtightness testing device for a towel rack, which solves the problems that when the current liquid-type electric heating towel rack is subjected to an airtightness test, generally the towel rack tube body is immersed in water, and air is inflated into the tube body to observe whether there are bubbles generated to judge the airtightness, or soap liquid is sprayed on the surface of the towel rack tube body, and whether there are bubbles generated is observed after inflation to judge the airtightness. However, both of the above methods will wet the surface of the towel rack, and after the detection is completed, the surface of the towel rack tube body still needs to be dried and cleaned, which is rather troublesome, and the electric heating towel rack with the heating device assembled cannot be detected, and it is easy to soak the heating device. Therefore, the airtightness of the connection between the heating device and the tube body of the towel rack cannot be tested.
[0004] To achieve the above purpose, the technical solution adopted by the present utility model is: an airtightness testing device for a towel rack, including a detection box, the detection box is made of a transparent material, the upper side of the detection box is open, an electric heating towel rack is placed inside the detection box, a box cover is inserted at the opening of the detection box, a gas guide head is arranged in the middle of the upper side of the box cover, the gas guide head penetrates through the box cover to the lower side and is communicated with a connecting pipe, the connecting pipe is communicated with the electric heating towel rack, an air pump is arranged on one side of the upper side of the box cover, the input end of the air pump penetrates through the box cover and is communicated with the inside of the detection box, and the output end of the air pump is connected with a hose.
[0005] The beneficial effects of the present utility model are as follows: During the test, the ozone tank is compressed by connecting an external pipeline to the pump through the air guiding head. Ozone is sky-blue, and the harm of low-concentration ozone is relatively low. Compared with most colored gases, ozone is more suitable as a detection gas. If there are defects in the airtightness of the electric heated towel rack, ozone can be introduced into the electric heated towel rack through the air guiding head and the connecting pipe and leak out through the defective parts. By observing whether there is sky-blue ozone leaking from the surface of the electric heated towel rack, the airtightness of the electric heated towel rack can be quickly judged. The detection is convenient and fast, the surface of the electric heated towel rack will not be wetted, and there is no need for subsequent cleaning and drying. Moreover, the sealing of the heating device and the pipe body of the towel rack can be directly tested.
[0006] For sealing and ventilating the inner side of the detection box;
[0007] As a further improvement of the above technical solution: A bolt rod is inserted and arranged on one side of the upper side of the box cover. There is a gap at the insertion part of the bolt rod and the box cover. The bolt rod penetrates through the box cover to the lower side and is provided with a rubber ball. The rubber ball seals the insertion part of the lower side of the box cover and the bolt rod. A spring is sleeved on the outer side of the bolt rod, and the spring is arranged on the upper side of the box cover.
[0008] The beneficial effects of this improvement are as follows: The spring can push the bolt rod to pull up the rubber ball to block the insertion part of the bolt rod and the box cover, maintaining the sealing effect inside the detection box during the test. When the air pump evacuates the detection box, after the air pressure inside the detection box decreases, the negative pressure will suck the rubber ball away from the box cover, and external air will enter the electric heated towel rack through the gap between the bolt rod and the box cover for sealing and ventilating the inner side of the detection box.
[0009] To increase the sealing performance at the connection between the box cover and the detection box;
[0010] As a further improvement of the above technical solution: The insertion contact surface between the box cover and the detection box is a rubber surface.
[0011] The beneficial effects of this improvement are: To increase the sealing performance at the connection between the box cover and the detection box.
[0012] To increase the rigor of the airtightness test of the electric heated towel rack;
[0013] As a further improvement of the above technical solution: A reaction tube is arranged on one side of the detection box. The reaction tube is made of transparent glass. A tube plug is plugged and arranged on the upper side of the reaction tube. A long tube is inserted and arranged on the upper side of the tube plug. The long tube penetrates through the tube plug to the inner bottom of the reaction tube. A short tube is inserted and arranged on the upper side of the tube plug. The short tube penetrates through the tube plug to the lower side, and the lower end of the short tube is close to the opening of the reaction tube.
[0014] The beneficial effects of this improvement are as follows: Sometimes, when the airtightness defect on the surface of the electric towel rack is small, the leaked ozone can be negligible and difficult to observe. A hose can be sleeved on the upper end of the long tube, and an aqueous potassium iodide solution is placed in the reaction tube. Start the air pump, and the air pump passes the air in the detection box through the hose and the long tube into the bottom of the aqueous potassium iodide solution. It can react with the aqueous potassium iodide solution to generate free iodine I2, and at the same time, ozone is reduced to oxygen O2. This reaction occurs in water, and the generated iodine will show a color change from light yellow to dark red according to its concentration in water. When observing the bubbles emerging from the bottom of the long tube, check whether the surrounding solution changes color to further determine whether there is ozone leakage, which increases the rigor of the airtightness test of the electric towel rack.
[0015] For discharging the liquid in the reaction tube;
[0016] As a further improvement of the above technical solution: a liquid discharge pipe is communicatively provided on the lower side of the reaction tube, and a threaded cap is threadedly provided on the lower side of the liquid discharge pipe.
[0017] The beneficial effects of this improvement are as follows: Unscrew the threaded cap to discharge the liquid in the reaction tube.
[0018] For facilitating the disassembly and installation of the reaction tube;
[0019] As a further improvement of the above technical solution: a collar is sleeved on the outside of the reaction tube, the collar is fixedly connected to the detection box, a bolt is threadedly provided on the side of the collar away from the detection box, and the bolt penetrates through the collar and contacts the reaction tube.
[0020] The beneficial effects of this improvement are as follows: By turning the bolt, the reaction tube inside the collar can be tightened and loosened, which facilitates the disassembly and installation of the reaction tube.
[0021] For facilitating the rotational observation of the surface of the electric towel rack;
[0022] As a further improvement of the above technical solution: a rotating connector is rotatably provided on the upper side of the air guide head, a chassis is provided on the lower side of the detection box, a rotating disk is rotatably provided on the upper side of the chassis, inserting rods are provided at the four corners on the lower side of the detection box, and inserting slots corresponding to the inserting rods are formed on the upper side of the rotating disk, and the inserting rods are inserted into the inserting slots.
[0023] The beneficial effects of this improvement are as follows: Fix the detection box on the upper side of the rotating disk through the inserting rods and the inserting slots, and connect the external pipeline through the rotating connector on the upper side of the air guide head. During detection, the detection box can be rotated, and the detection box drives the electric towel rack to rotate, which facilitates the rotational observation of the surface of the electric towel rack.
[0024] The parts not involved in this device are the same as the prior art or can be implemented using the prior art. Description of the Drawings
[0025] Figure 1 is a schematic structural diagram of the present utility model;
[0026] Figure 2 is a cross-sectional view of the inner structure of the present utility model;
[0027] Figure 3 is a cross-sectional view of the internal structure of the reaction tube in the present utility model;
[0028] Figure 4 is a schematic diagram of the connection structure of the detection box in the present utility model;
[0029] Figure 5 is a schematic structural diagram of the rotating disk in the present utility model;
[0030] In the figure: 1. Detection box; 2. Electric heating towel rack; 3. Box cover; 4. Air guide head; 5. Air pump; 6. Hose; 7. Reaction tube; 8. Tube plug; 9. Long tube; 10. Short tube; 11. Liquid discharge tube; 12. Threaded cap; 13. Bolt rod; 14. Spring; 15. Rubber ball; 16. Rotating connection head; 17. Rotating disk; 18. Chassis; 19. Insertion rod; 20. Insertion slot; 21. Collar; 22. Bolt. Detailed Embodiment
[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description of this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.
[0032] Such as Figure 1 — Figure 5As shown: An airtightness testing device for a towel rack, including a detection box 1. The detection box 1 is made of transparent material. The upper side of the detection box 1 is open. An electric heating towel rack 2 is placed inside the detection box 1. A box cover 3 is inserted at the opening of the detection box 1. In the middle of the upper side of the box cover 3, there is a gas guide head 4. The gas guide head 4 penetrates through the box cover 3 and is connected to a connecting pipe at the lower side. The connecting pipe is connected to the electric heating towel rack 2. On one side of the upper side of the box cover 3, there is an air pump 5. The input end of the air pump 5 penetrates through the box cover 3 and is connected to the inside of the detection box 1. The output end of the air pump 5 is connected to a hose 6. When testing, the external pipeline is connected to the pump machine through the gas guide head 4 to compress the ozone tank. Ozone is sky-blue, and the harm of low-concentration ozone is relatively low. Compared with most colored gases, ozone is more suitable as a detection gas. If there are defects in the airtightness of the electric heating towel rack 2, ozone can be introduced into the electric heating towel rack 2 through the gas guide head 4 and the connecting pipe and leak out through the defective parts. By observing whether there is sky-blue ozone leaking out on the surface of the electric heating towel rack 2, the airtightness of the electric heating towel rack 2 can be quickly judged. The detection is convenient and fast, the surface of the electric heating towel rack 2 will not be wetted, and there is no need for subsequent cleaning and drying. Moreover, the tube body seals of the heating device and the towel rack can be directly tested. On one side of the upper side of the box cover 3, there is a bolt rod 13 inserted. There is a gap at the insertion part of the bolt rod 13 and the box cover 3. The bolt rod 13 penetrates through the box cover 3 to the lower side and is provided with a rubber ball 15. The rubber ball 15 plugs the insertion part of the lower side of the box cover 3 and the bolt rod 13. A spring 14 is sleeved on the outer side of the bolt rod 13. The spring 14 is arranged on the upper side of the box cover 3. The spring 14 can push the bolt rod 13 to pull up the rubber ball 15 to block the insertion part of the bolt rod 13 and the box cover 3, maintaining the sealing effect inside the detection box 1 during detection. When the air pump 5 evacuates the detection box 1, after the air pressure inside the detection box 1 decreases, the negative pressure will suck the rubber ball 15 away from the box cover 3, and external air will enter the electric heating towel rack 2 through the gap between the bolt rod 13 and the box cover 3, which is used for sealing and ventilation inside the detection box 1. The insertion contact surface between the box cover 3 and the detection box 1 is a rubber surface, which increases the sealing performance at the connection between the box cover 3 and the detection box 1. On one side of the detection box 1, there is a reaction tube 7. The reaction tube 7 is made of transparent glass material. A tube plug 8 is plugged at the upper side of the reaction tube 7. A long tube 9 is inserted at the upper side of the tube plug 8. The long tube 9 penetrates through the tube plug 8 to the inner bottom of the reaction tube 7. A short tube 10 is inserted at the upper side of the tube plug 8. The short tube 10 penetrates through the tube plug 8 to the lower side. The lower end of the short tube 10 is close to the opening of the reaction tube 7. Sometimes, when the airtightness defect on the surface of the electric heating towel rack 2 is small, the leaked ozone can be negligible and difficult to observe. The hose 6 can be sleeved on the upper end of the long tube 9, and potassium iodide aqueous solution is placed in the reaction tube 7, and the air pump 5 is started.The air pump 5 passes the air in the detection box 1 through the hose 6 and the long tube 9 into the bottom of the potassium iodide aqueous solution. It can react with the potassium iodide aqueous solution to generate free iodine I2, and at the same time, ozone is reduced to oxygen O2. This reaction occurs in water, and the generated elemental iodine will show a color change from light yellow to dark red according to its concentration in water. By observing whether the solution around the bottom of the long tube 9 changes color when bubbles emerge, it is possible to further determine whether there is ozone leakage, increasing the rigor of the airtightness test of the electric towel rack 2. A liquid discharge pipe 11 is connected to the lower side of the reaction tube 7 in a communicating manner. A threaded cap 12 is provided on the lower side of the liquid discharge pipe 11. Unscrewing the threaded cap 12 is used to discharge the liquid in the reaction tube 7. A collar 21 is sleeved on the outer side of the reaction tube 7. The collar 21 is fixedly connected to the detection box 1. A bolt 22 is provided on the side of the collar 21 away from the detection box 1 in a threaded manner. The bolt 22 passes through the collar 21 and contacts the reaction tube 7. By turning the bolt 22, it can be used to fasten and loosen the reaction tube 7 inside the collar 21, facilitating the disassembly and installation of the reaction tube 7. A rotary connector 16 is rotatably provided on the upper side of the air guide head 4. A chassis 18 is provided on the lower side of the detection box 1. A rotating disk 17 is rotatably provided on the upper side of the chassis 18. Plugging rods 19 are provided at the four corners on the lower side of the detection box 1. Plugging grooves 20 are provided on the upper side of the rotating disk 17 corresponding to the plugging rods 19. The plugging rods 19 are plugged into the plugging grooves 20 to fix the detection box 1 on the upper side of the rotating disk 17 through the plugging rods 19 and the plugging grooves 20. The upper side of the air guide head 4 is connected to an external pipeline through the rotary connector 16. During detection, the detection box 1 can be rotated, and the detection box 1 drives the electric towel rack 2 to rotate, facilitating the rotational observation of the surface of the electric towel rack 2.,
[0033] The working principle and usage process of the present utility model:
[0034] During use, place the assembled electric heating towel rack of the heating device into the detection box 1. Do not connect the sealing head to the liquid filling port of the electric heating towel rack. Connect the lower end of the connecting pipe to the threaded sealing plug corresponding to the sealing head model, and then connect the threaded sealing plug to the liquid filling port. During testing, externally connect the pipeline through the air guide head 4 to the pump to compress the ozone tank. Ozone is sky blue, and the harm of low-concentration ozone is relatively low. Compared with most colored gases, ozone is more suitable as a detection gas. If there are defects in the airtightness of the electric heating towel rack 2, ozone can enter the electric heating towel rack 2 through the air guide head 4 and the connecting pipe and leak out through the defective parts. Observe whether there is sky blue ozone leaking from the surface of the electric heating towel rack 2 to quickly judge the airtightness of the electric heating towel rack 2. The detection is convenient and fast, does not wet the surface of the electric heating towel rack 2, and does not require subsequent cleaning and drying. Moreover, it can directly test the pipe body seal between the heating device and the towel rack. After the detection is completed, if there is obvious ozone leakage, start the air pump 5. The air pump 5 can extract the ozone inside the detection box 1 and collect and process the ozone through a device such as a collection tank connected by a hose 6. In addition, during use, a bolt rod 13 is inserted on one side of the upper side of the box cover 3. There is a gap at the insertion part of the bolt rod 13 and the box cover 3. The bolt rod 13 penetrates through the box cover 3 to the lower side and is provided with a rubber ball 15. The rubber ball 15 seals the insertion part of the lower side of the box cover 3 and the bolt rod 13. A spring 14 is sleeved on the outer side of the bolt rod 13. The spring 14 is arranged on the upper side of the box cover 3. The spring 14 can push the bolt rod 13 to pull up the rubber ball 15 to block the insertion part of the bolt rod 13 and the box cover 3, maintaining the sealing effect inside the detection box 1 during detection. When the air pump 5 pumps air into the detection box 1, after the air pressure inside the detection box 1 decreases, the negative pressure will suck the rubber ball 15 away from the box cover 3, and external air will enter the electric heating towel rack 2 through the gap between the bolt rod 13 and the box cover 3 for sealing and ventilation inside the detection box 1. In addition, during use, the insertion contact surface between the box cover 3 and the detection box 1 is a rubber surface, increasing the sealing performance at the connection between the box cover 3 and the detection box 1. In addition, during use, a reaction tube 7 is arranged on one side of the detection box 1. The reaction tube 7 is made of transparent glass. A tube plug 8 is plugged on the upper side of the reaction tube 7. A long tube 9 is inserted on the upper side of the tube plug 8. The long tube 9 penetrates through the tube plug 8 to the inner bottom of the reaction tube 7. A short tube 10 is inserted on the upper side of the tube plug 8. The short tube 10 penetrates through the tube plug 8 to the lower side. The lower end of the short tube 10 is close to the opening of the reaction tube 7. Sometimes, when the airtightness defect on the surface of the electric heating towel rack 2 is small, the leaked ozone can be almost negligible and difficult to observe. The hose 6 can be sleeved on the upper end of the long tube 9, place an aqueous potassium iodide solution in the reaction tube 7, and start the air pump 5,The air pump 5 passes the air in the detection box 1 through the hose 6 and the long tube 9 into the bottom of the potassium iodide aqueous solution. It can react with the potassium iodide aqueous solution to generate free iodine I2, and at the same time ozone is reduced to oxygen O2. This reaction occurs in water, and the generated elemental iodine will show a color change from light yellow to dark red according to its concentration in water. By observing whether the solution around the bubbles emerging from the bottom of the long tube 9 changes color, it is possible to further determine whether there is ozone leakage, increasing the rigor of the airtightness test of the electric towel rack 2. In addition, during use, a liquid discharge pipe 11 is connected to the lower side of the reaction tube 7, and a threaded cap 12 is threadedly arranged on the lower side of the liquid discharge pipe 11. Unscrewing the threaded cap 12 is used to drain the liquid in the reaction tube 7. In addition, during use, a collar 21 is sleeved outside the reaction tube 7, and the collar 21 is fixedly connected to the detection box 1. A bolt 22 is threadedly arranged on the side of the collar 21 away from the detection box 1, and the bolt 22 passes through the collar 21 and contacts the reaction tube 7. By turning the bolt 22, it can be used to fasten and loosen the reaction tube 7 inside the collar 21, facilitating the disassembly and installation of the reaction tube 7. In addition, during use, a rotating connector 16 is rotatably arranged on the upper side of the air guide head 4, a chassis 18 is arranged on the lower side of the detection box 1, a rotating disk 17 is rotatably arranged on the upper side of the chassis 18, and inserting rods 19 are arranged at the four corners of the lower side of the detection box 1. Insertion slots 20 are provided on the upper side of the rotating disk 17 corresponding to the inserting rods 19, and the inserting rods 19 are inserted into the insertion slots 20 to fix the detection box 1 on the upper side of the rotating disk 17 through the inserting rods 19 and the insertion slots 20. The upper side of the air guide head 4 is connected to an external pipeline through the rotating connector 16. During detection, the detection box 1 can be rotated, and the detection box 1 drives the electric towel rack 2 to rotate, facilitating the rotational observation of the surface of the electric towel rack 2.,
[0035] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.
[0036] Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above examples is only used to help understand the method and its core idea of the present invention. The above is only the preferred implementation manner of the present invention. It should be pointed out that due to the limited nature of written expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present invention.
Claims
1. A towel rack air tightness testing device, characterized in that: The invention comprises a detection box (1), wherein the detection box (1) is made of a transparent material, the upper side of the detection box (1) is open, an electric towel rack (2) is placed inside the detection box (1), a box cover (3) is plugged into the opening of the detection box (1), an air guide head (4) is arranged in the middle of the upper side of the box cover (3), the air guide head (4) passes through the box cover (3) to the lower side and is connected to a connecting pipe, the connecting pipe is connected to the electric towel rack (2), an air pump (5) is arranged on one side of the upper side of the box cover (3), the input end of the air pump (5) passes through the box cover (3) and is connected to the inner side of the detection box (1), and the output end of the air pump (5) is connected to a hose (6).
2. The towel rack air tightness testing device according to claim 1, characterized in that: A bolt rod (13) is inserted on one side of the upper side of the box cover (3), and a gap is formed at the insertion point of the bolt rod (13) and the box cover (3). The bolt rod (13) passes through the box cover (3) and a rubber ball (15) is arranged on the lower side. The rubber ball (15) blocks the insertion point between the lower side of the box cover (3) and the bolt rod (13). A spring (14) is sleeved on the outer side of the bolt rod (13), and the spring (14) is arranged on the upper side of the box cover (3).
3. The towel rack air tightness testing device according to claim 1, characterized in that: The plug-in contact surface between the box cover (3) and the detection box (1) is a rubber surface.
4. The towel rack air tightness testing device according to claim 1, characterized in that: A reaction tube (7) is arranged on one side of the detection box (1), the reaction tube (7) is made of transparent glass, a tube plug (8) is arranged on the upper side of the reaction tube (7), a long tube (9) is inserted on the upper side of the tube plug (8), the long tube (9) penetrates the tube plug (8) to the inner bottom of the reaction tube (7), a short tube (10) is inserted on the upper side of the tube plug (8), the short tube (10) penetrates the tube plug (8) to the lower side, and the lower end of the short tube (10) is close to the opening of the reaction tube (7).
5. The towel rack air tightness testing device according to claim 4, characterized in that: The lower side of the reaction tube (7) is connected to a liquid discharge pipe (11), and the lower side of the liquid discharge pipe (11) is threadedly provided with a threaded cap (12).
6. The towel rack air tightness testing device according to claim 4, characterized in that: The outer side of the reaction tube (7) is sleeved with a collar (21), the collar (21) is fixedly connected to the detection box (1), and a bolt (22) is threadedly provided on a side of the collar (21) away from the detection box (1), the bolt (22) penetrates the collar (21) and contacts the reaction tube (7).
7. The towel rack air tightness testing device according to claim 1, characterized in that: A rotating connector (16) is rotatably provided on the upper side of the air guide head (4), a bottom plate (18) is rotatably provided on the lower side of the detection box (1), a rotating disk (17) is rotatably provided on the upper side of the bottom plate (18), plug-in rods (19) are provided at four corners of the lower side of the detection box (1), and a plug-in slot (20) is provided on the upper side of the rotating disk (17) corresponding to the plug-in rod (19), and the plug-in rod (19) is plugged into the plug-in slot (20).