A new type of water heater enamel inner tank pipe plug

Abstract

The utility model discloses a novel water heater enamel inner tank pipe port plug, which is used to seal the pipe port on the water heater enamel inner tank. The plug assembly includes a plug, a screw, a nut and a locking screw. The plug is arranged at one end of the screw, and the locking screw is provided with an axial through hole. The inner wall of the through hole is provided with an internal thread. The screw is threadedly connected with the through hole, and the nut is arranged at one end of the screw away from the plug. The beneficial effects of the utility model are as follows: the utility model can effectively seal the pipe port by arranging the plug, the screw and the locking screw, so that the enamel slurry in the enamel inner tank will not enter the pipe port, thereby keeping the pipe port clean and protecting the threads in the pipe port, and there is no need to clean the pipe port, reducing the contact between the operator and the enamel slurry, and avoiding the enamel slurry from damaging human health; the utility model has a simple structure and is very convenient to install and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of enamel inner tanks for water heaters, in particular to a novel enamel inner tank pipe port plug for water heaters. Background Art

[0002] At present, most enterprises use rolling or spraying enameling for the enamel inner tank of water heaters. During the enameling process, because there are many functional nozzles on the enamel inner tank (for water inlet and outlet, temperature measurement, sewage discharge, safety valve, etc.), these nozzles will enter the enamel slurry due to the rotation of the enamel inner tank and the vibration of the equipment during the enameling operation, which requires a lot of manpower to clean. Once they are not cleaned up, the threads in these nozzles will be damaged. Therefore, in the traditional technology, screw heads or soft materials are used to block the nozzles. A single screw head or soft material cannot completely block the glaze slurry from entering the pipe seat. A large amount of dust is generated during manual cleaning, which endangers the health of workers and cannot guarantee the quality of the pipe seat threads. Utility Model Content

[0003] The utility model aims to provide a novel water heater enamel inner tank pipe port plug to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of water heater enameled inner tank pipe port plug, used to seal the pipe port on the water heater enameled inner tank, the plug assembly includes a plug, a screw, a nut and a locking screw head, the plug is arranged at one end of the screw, the locking screw head is provided with an axial through hole, the inner wall of the through hole is provided with an internal thread, the screw is threadedly connected to the through hole, and the nut is arranged at the end of the screw away from the plug.

[0005] Preferably, the locking screw head comprises a head and a stem, and the diameter of the head is greater than the diameter of the stem.

[0006] Preferably, the outer wall of the head is provided with a plurality of circumferentially distributed cross-sections, and the outer wall of the stem is provided with threads.

[0007] Preferably, the plug is made of polyurethane material.

[0008] Preferably, the plug is a cylinder, and its diameter is equal to the diameter of the rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can effectively seal the pipe mouth by arranging a plug, a screw and a locking screw head, so that the enamel slurry in the enamel liner will not enter the pipe mouth, thereby keeping the pipe mouth clean and protecting the threads in the pipe mouth, and there is no need to clean the pipe mouth, reducing the contact between the operator and the enamel slurry and avoiding the enamel slurry from damaging human health; the utility model has a simple structure and is very convenient to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the connection between the utility model and the enamel liner;

[0012] Figure 3 This is a schematic diagram of the screw structure of the utility model;

[0013] Figure 4 This is a schematic diagram of the locking screw head structure of the utility model.

[0014] In the figure: 1, plug; 2, screw; 3, nut; 4, locking screw head; 41, head; 42, rod; 5, through hole; 100, enamel liner; 200, pipe mouth; 300, enamel glaze slurry. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figures 1 to 4The utility model provides a technical solution: a new type of water heater enamel inner tank pipe port plug, used to plug the pipe port 200 on the water heater enamel inner tank 100, the enamel inner tank 100 is filled with enamel glaze slurry 300, and the plug assembly of the technical solution is to prevent the enamel glaze slurry 300 from penetrating into the pipe port 200. The plug assembly includes a plug 1, a screw 2, a nut 3 and a locking screw 4, the plug 1 is arranged at one end of the screw 2, the locking screw 4 is provided with an axial through hole 5, the inner wall of the through hole 5 is provided with an internal thread, the screw 2 is threadedly connected with the through hole 5, the nut 3 is arranged at one end of the screw 2 away from the plug 1, the length of the screw 2 is selected according to the pipe port to be plugged, the plug 1 can be prepared according to the size of the pipe port when in use, and the plug 1 can be used by gluing one end of the screw 2 with glue, so that the utility model can adapt to pipe ports of different calibers. The locking nut 4 is threadedly connected with the pipe mouth 200 when in use, that is, the screw rod 2 is first screwed into the locking nut 4, then the locking nut 4 and the pipe mouth 200 are tightened, and finally the nut 3 is tightened.

[0017] Specifically, the locking screw head 4 includes a head 41 and a rod 42, wherein the diameter of the head 41 is larger than the diameter of the rod 42. The outer wall of the head 41 is provided with a plurality of circumferentially distributed sections for convenience of tightening by operators, and the outer wall of the rod 42 is provided with threads, and the rod 42 is threadedly connected to the pipe mouth 200 through the external threads.

[0018] Specifically, the plug 1 is made of polyurethane material, which is wear-resistant and can prevent enamel slurry from leaking.

[0019] Specifically, the plug 1 is a cylinder, and its diameter is equal to the diameter of the rod 42 .

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of water heater enamel liner pipe port plug, used to plug the pipe port on the enamel liner of the water heater, characterized by: The plug includes a plug, a screw, a nut and a locking screw. The plug is arranged at one end of the screw, the locking screw is provided with an axial through hole, the inner wall of the through hole is provided with an internal thread, the screw is threadedly connected to the through hole, and the nut is arranged at one end of the screw away from the plug.

2. A new type of water heater enamel inner tank pipe port plug according to claim 1, characterized in that: The locking screw head comprises a head and a rod, and the diameter of the head is greater than the diameter of the rod.

3. A new type of water heater enamel inner tank pipe port plug according to claim 2, characterized in that: The outer wall of the head is provided with a plurality of circumferentially distributed sections, and the outer wall of the rod is provided with threads.

4. A new type of water heater enamel inner tank pipe port plug according to claim 3, characterized in that: The plug is made of polyurethane material.

5. A new type of water heater enamel inner tank pipe port plug according to claim 4, characterized in that: The plug is a cylinder, and its diameter is equal to the diameter of the rod.

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