A water heater inner container sealing detection device

Abstract

The utility model relates to sealed detection technical field, especially a kind of water heater inner container sealing detection equipment, including drive base, rotating clamp, drive top seat and water jet pipe;The top of drive base is rotatably connected with the bottom of rotating clamp, and the clamping portion of rotating clamp faces upwards;Drive top seat is installed in the support portion of drive base, and is fixed above rotating clamp;The top of water jet pipe is rotatably connected with the bottom of drive top seat, water jet pipe is vertically inserted into the clamping portion of rotating clamp, and multiple water outlets are arranged on the side surface of water jet pipe from top to bottom;Drive top seat is equipped with the water inlet pipe that is connected with the top water inlet end of water jet pipe and the outside;Solve the problem that in water immersion method static test, due to the existence of tension film, leading to the problem that inner container sealing detection is not accurate.

Description

Technical Field

[0001] This utility model relates to the field of sealing detection technology, and in particular to a sealing detection device for the inner tank of a water heater. Background Technology

[0002] The sealing performance of the water heater's inner tank directly affects its lifespan and insulation performance, and a sealing test is usually conducted before it leaves the factory. Therefore, a common sealing test method is the water immersion method, which involves immersing the inner tank in water and observing whether bubbles emerge to identify leaks; or filling the inner tank with water and observing whether water seeps out from the outer wall. However, these methods are static tests. When the cracks or small holes in the inner tank are small, water can easily form a tension film at the point of damage, hindering the flow of water for a short period. This can result in situations where, even if there is a damage, no bubbles are generated or water seeps out, leading to inaccurate sealing tests. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this invention is to propose a water heater inner tank sealing testing device, which solves the problem of inaccurate inner tank sealing testing due to the presence of a tension membrane in the static water immersion test.

[0004] To achieve this objective, the present invention adopts the following technical solution: A water heater inner tank sealing testing device includes a drive base, a rotating clamp, a drive top seat, and a spray pipe; the top of the drive base is rotatably connected to the bottom of the rotating clamp, and the clamping part of the rotating clamp faces upward; The drive top seat is mounted on the support part of the drive base and fixed above the rotating clamp; the top of the water spray pipe is rotatably connected to the bottom of the drive top seat, the water spray pipe extends vertically into the clamping part of the rotating clamp, and the water spray pipe has multiple water spray nozzles from top to bottom. The drive top seat is provided with a top water inlet end that connects the water spray pipe to the outside water inlet pipe.

[0005] Furthermore, the rotating clamp includes a circular support, a clamp rotation gear, and at least four clamping fingers; the clamp rotation gear is horizontally fixed to the bottom surface of the circular support. The clamping fingers are vertically disposed on the top surface of the circular support, and a plurality of the clamping fingers are evenly distributed along the circumference of the circular support. The bottom end of the clamping fingers is radially slidably connected to the circular support. The water spray pipe extends vertically toward the center of the top surface of the circular receiving seat.

[0006] Furthermore, the drive base has a receiving groove corresponding to the circular receiving seat, and the circular receiving seat and the clamp rotating gear are placed in the receiving groove; the transmission gear of the drive motor built into the drive base extends horizontally from the side wall of the receiving groove and meshes with the clamp rotating gear.

[0007] Furthermore, the top water inlet end of the spray pipe is inserted into the water inlet pipe, and the top outer wall of the spray pipe is fitted with a flexible silicone sleeve, which is used to seal the connection between the spray pipe and the water inlet pipe. The water spray pipe is also fixedly fitted with a rotating gear below the flexible silicone sleeve, and the rotating gear is meshed with the transmission gear of the drive motor built into the drive top seat.

[0008] Furthermore, the water spray pipe extends outward with multiple extension pipes; the water spray nozzle is opened at the end of the extension pipe, and the outer wall of the extension pipe is provided with at least one protruding locking block.

[0009] Furthermore, the top surface of the support is provided with a mounting groove, and the bottom surface of the drive top seat is provided with a plug-in block corresponding to the mounting groove. The drive top seat is inserted into the mounting groove through the plug-in block and fixed above the rotating clamp.

[0010] Furthermore, the top surface of the support part and the bottom surface of the drive top seat are fixedly connected, and the support part is an up-and-down telescopic mechanism.

[0011] Furthermore, a soft pad is provided at the center of the top surface of the circular support.

[0012] Furthermore, the water nozzles are staggered among themselves.

[0013] The technical solution provided by this utility model can include the following beneficial effects: The top and bottom of the drive base are connected by a transmission connection, and the clamping part of the rotating clamp faces upward, used to clamp and fix the inner tank of the water heater above the drive base. The drive top seat is installed on the support part of the drive base so that the drive top seat can extend the bottom spray pipe into the inner tank from the inner tank opening fixed by the clamping part of the rotating clamp (i.e., the spray pipe extends into the clamping part of the rotating clamp; if there are other openings on the side of the inner tank, they are sealed with plugs). The drive top seat is then fixedly installed on the support part of the drive base, located above the rotating clamp, so that the spray pipe is suspended inside the inner tank. The water supply for the spray pipe is provided by the drive top seat having a water inlet pipe connecting the inlet end of the spray pipe to the outside. The water inlet pipe can be connected to a water source (such as a connecting water pipe) to guide the water flow to the spray pipe, and spray water outward from multiple spray nozzles on the side of the spray pipe. In summary, after the inner liner is fixed by the clamping part of the rotating fixture, the water spray pipe extends into its interior. The water spray pipe is slowly rotated (with forward and reverse rotation switching) to spray water onto the inner wall of the inner liner. At the same time, the rotating fixture (with forward and reverse rotation switching) is rotated quickly (faster than the water spray pipe) to make the inner liner rotate, causing the water inside the inner liner to shake violently (to prevent static testing). This simulates the scenario where a kettle inner liner is often damaged and leaks are discovered due to frequent movement during daily use. This effectively avoids the formation of a tension membrane at the damaged area of ​​the inner liner and improves the accuracy of the sealing test. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a water heater inner tank sealing testing device according to one embodiment of this utility model.

[0015] Figure 2 Is it like this? Figure 1 The figure shows an assembly diagram of a water heater inner tank sealing testing device.

[0016] Figure 3 Is it like this? Figure 1 The diagram shows the structure of the water spray pipe.

[0017] The components include: drive base 1, rotating clamp 2, drive top seat 3, water spray pipe 4, support part 11, water spray nozzle 41, water inlet pipe 31, circular receiving seat 21, clamp rotating gear 22, clamping finger 23, receiving groove 12, flexible silicone sleeve 42, rotating gear 43, mounting groove 111, plug-in block 32, and soft pad 211. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0022] The following is combined with Figures 1 to 3 This invention describes a water heater inner tank sealing testing device according to an embodiment of the present invention.

[0023] A water heater inner tank sealing test device includes a drive base 1, a rotating clamp 2, a drive top seat 3, and a spray pipe 4; the top of the drive base 1 is rotatably connected to the bottom of the rotating clamp 2, and the clamping part of the rotating clamp 2 faces upward. The drive top seat 3 is installed on the support part 11 of the drive base 1 and fixed above the rotating clamp 2; the top of the water spray pipe 4 and the bottom of the drive top seat 3 are rotatably connected, the water spray pipe 4 extends vertically into the clamping part of the rotating clamp 2, and the water spray pipe 4 has multiple water spray nozzles 41 from top to bottom. The drive top seat 3 is equipped with a top water inlet end that connects the water spray pipe 4 to the outside water inlet pipe 31.

[0024] This utility model proposes a preferred embodiment of a water heater inner tank sealing testing device, such as... Figure 1As shown, the top and bottom of the drive base 1 are connected by a transmission connection. The clamping part of the rotating clamp 2 faces upward and is used to clamp and fix the inner tank of the water heater above the drive base 1. The drive top seat 3 is installed on the support part 11 of the drive base 1 so that the drive top seat 3 can extend the bottom spray pipe 4 into the inner tank from the inner tank opening fixed by the clamping part of the rotating clamp 2 (that is, the spray pipe 4 extends into the clamping part of the rotating clamp 2; if there are other openings on the side of the inner tank, they are sealed with plugs). The drive top seat 3 is then fixedly installed on the support part 11 of the drive base 1, located above the rotating clamp 2, so that the spray pipe 4 is suspended inside the inner tank. The water supply for the spray pipe 4 is provided by the water inlet pipe 31 provided by the drive top seat 3, which connects the water inlet end of the spray pipe 4 to the outside. The water inlet pipe 31 can be connected to an external water source (such as a water pipe) to guide the water flow to the spray pipe 4, and spray water outward from multiple spray nozzles 41 on the side of the spray pipe 4. In summary, after the inner liner is fixed by the clamping part of the rotating clamp 2, the water spray pipe 4 extends into its interior. The water spray pipe 4 is slowly rotated (with forward and reverse rotation switching) to make the water spray nozzle 41 spray water onto the inner wall of the inner liner. At the same time, the rotating clamp 2 (with forward and reverse rotation switching) is rotated quickly (faster than the water spray pipe 4) to make the inner liner rotate, causing the water inside the inner liner to shake violently (to prevent static testing). This simulates the scenario where the inner liner of a kettle is often damaged and leaks are found due to frequent movement during daily use. This effectively avoids the formation of a tension membrane at the damaged area of ​​the inner liner and improves the accuracy of the sealing test.

[0025] It should be noted that the linkage control between the drive base 1 and the drive top 3 can be achieved through various existing control methods, such as linkage control by MCU, which is simply motor control and will not be elaborated here.

[0026] Furthermore, the rotating clamp 2 includes a circular support 21, a clamp rotation gear 22, and at least four clamping fingers 23; the clamp rotation gear 22 is horizontally fixed to the bottom surface of the circular support 21. The clips 23 are vertically disposed on the top surface of the circular support 21, and multiple clips 23 are evenly distributed along the circumference of the circular support 21. The bottom end of the clips 23 is radially slidably connected to the circular support 21. The water spray pipe 4 extends vertically into the center of the top surface of the circular receiving seat 21.

[0027] In this embodiment, as Figure 2 As shown, the clamp rotating gear 22 is horizontally fixed to the bottom surface of the circular support 21 so that the drive base 1 can drive the clamp rotating gear 22 to rotate from the side, thereby causing the circular support 21 to rotate around the circumference, which in turn drives the inner liner above the circular support 21, which is slidably clamped and fixed towards the center by multiple clamping fingers 23, to rotate.

[0028] It should be noted that there are multiple ways to achieve the radial sliding connection between the bottom end of the clamping finger 23 and the circular receiving seat 21. For example, the circular receiving seat 21 may contain a drive motor, and the drive motor's transmission rod may be fitted with a horizontally arranged gear. The bottom end of the clamping finger 23 may be a radial horizontal bar with a row of protruding teeth. The bottom ends of multiple clamping fingers 23 may be partially engaged with the gear. When the gear rotates clockwise, all clamping fingers 23 tighten radially toward the center, clamping the inner liner. When the gear rotates counterclockwise, all clamping fingers 23 loosen radially outward, releasing the inner liner.

[0029] Furthermore, the drive base 1 has a receiving groove 12 corresponding to the circular receiving seat 21, and the circular receiving seat 21 and the clamp rotating gear 22 are placed in the receiving groove 12; the transmission gear of the drive motor built into the drive base 1 extends horizontally from the side wall of the receiving groove 12 and meshes with the clamp rotating gear 22.

[0030] In this embodiment, in order to ensure the stability of the rotating clamp 2 during rotation, the drive base 1 has a receiving groove 12 corresponding to the circular support 21. The circular support 21 and the clamp rotation gear 22 are placed in the receiving groove 12 and are limited by the receiving groove 12. At the same time, the transmission gear of the drive motor built into the drive base 1 extends horizontally from the side wall of the receiving groove 12 and meshes with the clamp rotation gear 22 to realize the rotational connection with the rotating clamp 2.

[0031] Furthermore, the top water inlet end of the spray pipe 4 is inserted into the water inlet pipe 31, and the top outer wall of the spray pipe 4 is fitted with a flexible silicone sleeve 42, which is used to seal the connection between the spray pipe 4 and the water inlet pipe 31. A rotating gear 43 is fixedly fitted below the flexible silicone sleeve 42 on the water spray pipe 4. The rotating gear 43 is meshed with the transmission gear of the drive motor built into the drive top seat 3.

[0032] In this embodiment, there are several ways to connect the top of the water spray pipe 4 and the drive top seat 3, the preferred method being: such as Figure 3 As shown, the top end of the water spray pipe 4 is inserted into the water inlet pipe 31, and the insertion point is sealed with a flexible silicone sleeve 42 to achieve communication between the water spray pipe 4 and the water inlet pipe 31. A transmission gear 43 is fitted below the insertion point. This gear meshes with the transmission gear of the drive motor built into the drive top seat 3 to drive the water spray pipe 4 to rotate. At the same time, since the insertion point is sealed with a flexible silicone sleeve 42, the water spray pipe 4 is allowed to rotate (the water spray pipe 4 rotates slowly or slowly in both directions) while maintaining the seal.

[0033] Furthermore, the water spray pipe 4 extends outward with multiple extension pipes; the water spray nozzle 41 is opened at the end of the extension pipe, and the outer wall of the extension pipe is provided with at least one protruding locking block.

[0034] In this embodiment, when encountering a relatively large water heater inner tank, the inner tank opening will be relatively large. In this case, a flexible hose can be connected to the spray nozzle 41. This allows the hose to sway slowly as the spray pipe 4 rotates, spraying water at multiple angles onto the inner wall of the inner tank, resulting in better testing results. Therefore, the spray pipe 4 needs to extend outwards with multiple extension pipes. The spray nozzle 41 is located at the end of the extension pipe, and at least one protruding locking block is provided on the outer wall of the extension pipe, allowing the hose to be fitted onto the outer wall of the extension pipe. The spray nozzle 41 sprays water into the hose, while the protruding locking block secures the hose (for example, a clamp can be used to secure the hose between the protruding locking block and the outer wall of the spray pipe 4) to prevent the hose from falling off.

[0035] Furthermore, the top surface of the support part 11 is provided with a mounting groove 111, and the bottom surface of the drive top seat 3 is provided with a plug-in block 32 corresponding to the mounting groove 111. The drive top seat 3 is inserted into the mounting groove 111 and fixed above the rotating clamp 2 through the plug-in block 32.

[0036] In this embodiment, when the inner liner being tested is relatively small, the preferred installation method for the drive top seat 3 and the support part 11 is plug-in installation. First, the inner liner is placed in and clamped by the rotating clamp 2. Then, the water spray pipe 4 is inserted into the inner liner, and finally the drive top seat 3 is fixed. This helps to prevent the inner liner from being damaged by impact with the water spray pipe 4 during placement.

[0037] Furthermore, the top surface of the support part 11 is fixedly connected to the bottom surface of the drive top seat 3, and the support part 11 is an up-and-down telescopic mechanism.

[0038] In this embodiment, when the inner liner being tested is relatively large, the height of the inner liner is relatively high, which is not conducive to the insertion and installation of the drive top seat 3. Therefore, the drive top seat 3 and the support part 11 are preferably connected by an upper and lower telescopic mechanism. When the upper and lower telescopic mechanism extends and retracts, it can drive the drive top seat 3 to move up and down, so that the inner liner can be placed into the rotating clamp 2.

[0039] Furthermore, a soft pad 211 is provided at the center of the top surface of the circular receiving seat 21.

[0040] In this embodiment, a soft pad 211 is provided at the center of the top surface of the circular support 21 to prevent the bottom of the inner liner from rigidly contacting the circular support 21 and to prevent the inner liner from being damaged during the testing process.

[0041] Furthermore, the nozzles 41 are staggered among each other.

[0042] In this embodiment, while the spray nozzles 41 are arranged from top to bottom along the spray pipe 4, the spray nozzles 41 are also staggered to ensure that water is sprayed evenly on all the inner walls of the inner tank.

[0043] Other components and operations of the water heater inner tank sealing detection device according to the present utility model are known to those skilled in the art and will not be described in detail here.

[0044] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water heater inner tank sealing testing device, characterized in that: It includes a drive base, a rotating clamp, a drive top seat, and a water spray pipe; the top of the drive base is rotatably connected to the bottom of the rotating clamp, and the clamping part of the rotating clamp faces upward; The drive top seat is mounted on the support part of the drive base and fixed above the rotating clamp; the top of the water spray pipe is rotatably connected to the bottom of the drive top seat, the water spray pipe extends vertically into the clamping part of the rotating clamp, and the water spray pipe has multiple water spray nozzles from top to bottom. The drive top seat is provided with a top water inlet end that connects the water spray pipe to the outside water inlet pipe.

2. The water heater inner tank sealing testing device according to claim 1, characterized in that: The rotating clamp includes a circular support, a clamp rotation gear, and at least four clamping fingers; the clamp rotation gear is horizontally fixed to the bottom surface of the circular support. The clamping fingers are vertically disposed on the top surface of the circular support, and a plurality of the clamping fingers are evenly distributed along the circumference of the circular support. The bottom end of the clamping fingers is radially slidably connected to the circular support. The water spray pipe extends vertically toward the center of the top surface of the circular receiving seat.

3. The water heater inner tank sealing testing device according to claim 2, characterized in that: The drive base has a receiving groove corresponding to the circular receiving seat, and the circular receiving seat and the clamp rotating gear are placed in the receiving groove; the transmission gear of the drive motor built into the drive base extends horizontally from the side wall of the receiving groove and meshes with the clamp rotating gear.

4. The water heater inner tank sealing testing device according to claim 1, characterized in that: The top water inlet end of the spray pipe is inserted into the water inlet pipe, and the top outer wall of the spray pipe is fitted with a flexible silicone sleeve, which is used to seal the connection between the spray pipe and the water inlet pipe. The water spray pipe is also fixedly fitted with a rotating gear below the flexible silicone sleeve, and the rotating gear is meshed with the transmission gear of the drive motor built into the drive top seat.

5. The water heater inner tank sealing testing device according to claim 1, characterized in that: The water spray pipe extends outward with multiple extension pipes; the water spray nozzle is opened at the end of the extension pipe, and the outer wall of the extension pipe is provided with at least one protruding locking block.

6. The water heater inner tank sealing testing device according to claim 1, characterized in that: The top surface of the support is provided with a mounting groove, and the bottom surface of the drive top seat is provided with a plug-in block corresponding to the mounting groove. The drive top seat is inserted into the mounting groove through the plug-in block and fixed above the rotating clamp.

7. The water heater inner tank sealing testing device according to claim 1, characterized in that: The top surface of the support part and the bottom surface of the drive top seat are fixedly connected, and the support part is an up-and-down telescopic mechanism.

8. The water heater inner tank sealing testing device according to claim 2, characterized in that: A soft pad is provided at the center of the top surface of the circular support.

9. The water heater inner tank sealing testing device according to claim 1, characterized in that: The water nozzles are staggered.

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