Electric water heater power line fixing device

Abstract

The utility model belongs to the field of power line fixing devices, and particularly relates to an electric water heater power line fixing device which comprises a shell, a locking opening is fixedly connected to the interior of the shell, a plurality of evenly-distributed arc grooves are formed in the locking opening, and a locking frame is slidably connected to the interior of the shell. The lower end of the locking frame is fixedly connected with two symmetrically-distributed threaded pipes. According to the utility model, the locking frame, the arc groove, the conical groove and other structures are additionally arranged in the shell, so that when the power line needs to be fastened, the locking frame can be driven to move towards the interior of the shell step by step through screw-thread fit between the screw and the locking frame; according to the locking device, the electric wire can be gradually locked through cooperation between the arc groove and the conical groove in the moving process, so that the power line can be reliably clamped, and meanwhile, the electric wire can be effectively protected and can be prevented from being damaged due to the fact that the cylindrical groove and the conical groove are both semicircular.

Description

Technical Field

[0001] The utility model relates to the technical field of power line fixing devices, in particular to a power line fixing device for an electric water heater. Background Art

[0002] An electric water heater refers to a water heater that uses electricity as an energy source for heating. It is one of the three major water heaters along with gas water heaters and solar water heaters. Electric water heaters can be divided into three types according to the size of the heating power: water storage type (also known as volumetric type or heat storage type), instant heating type, and rapid heating type (also known as semi-storage type). During the use of the electric water heater, the power cord is a stress-bearing component and needs to be installed and fixed by a fixing device. However, during the use of the power cord fixing device in the prior art, the circular flexible power cord is clamped unstably because the power cord is made of flexible material. When the power cord is clamped too tightly, it is easy to be stressed, causing the insulation layer on the outside of the power cord to break. Therefore, there is a need to improve the prior art. Utility Model Content

[0003] The utility model aims to provide a fixing device for a power line of an electric water heater, which solves the problem that the power line is easily damaged after being clamped too tightly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power cord fixing device for an electric water heater, comprising a shell, a locking mouth fixedly connected to the inside of the shell, a plurality of evenly distributed arc grooves are provided inside the locking mouth, a locking frame is slidably connected to the inside of the shell, the lower end of the locking frame is fixedly connected to two symmetrically distributed threaded tubes, four evenly distributed fixing columns are fixedly connected to the inside of the shell, four evenly distributed guide grooves are provided on the outside of the locking frame, the upper end of the shell contacts the water heater shell, and the inside of the water heater shell is movably connected to screws.

[0005] Preferably, the locking opening and the housing are an integrated structure, the plurality of arc grooves are distributed in a cone shape, the diameters of the plurality of arc grooves decrease step by step, and the wires can be gradually tightened between the arc grooves and the cone grooves.

[0006] Preferably, the threaded tube and the locking frame are an integrated structure, and a tapered groove is provided at the center of the locking frame. The integrated structure can effectively increase the connection strength between the threaded tube and the locking frame.

[0007] Preferably, the fixing column is square in shape and is slidably connected to the guide groove. The fixing column can guide the locking frame so that the center of the hole on the shell is aligned with the center of the hole on the locking frame, which is convenient for installing the screw.

[0008] Preferably, a sealing ring is fixedly connected to the upper end of the outer shell, and the sealing ring is in contact with the water heater shell. The sealing ring can increase the sealing between the outer shell and the water heater shell.

[0009] Preferably, the screw is connected to the locking frame via threads, and the screw is connected to the threaded tube via threads, and the screw can drive the locking frame to move inside the housing through the threaded cooperation with the locking frame.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model adds structures such as a locking frame, an arc groove and a tapered groove inside the shell. When the power line needs to be tightened, the locking frame can be driven to gradually move toward the inside of the shell through the threaded cooperation between the screw and the locking frame. During the movement, the locking frame can gradually lock the wire through the cooperation between the arc groove and the tapered groove, so that the power line can be reliably clamped. At the same time, because the cylindrical groove and the tapered groove are both semicircular, the wire can be effectively protected and the wire can be prevented from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0013] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;

[0014] Figure 3 The overall structure of the utility model is three-dimensional Figure 3 ;

[0015] Figure 4 For the utility model Figure 1 A perspective view of a housing;

[0016] Figure 5 For the utility model Figure 3 A three-dimensional view of a locking frame;

[0017] Figure 6 For the utility model Figure 1 Cross-sectional view of the installation status.

[0018] In the figure: 1. outer shell; 2. locking mouth; 3. arc groove; 4. locking frame; 5. threaded pipe; 6. fixing column; 7. water heater shell; 8. screw; 9. sealing ring; 10. guide groove; 11. conical groove. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 A power cord fixing device for an electric water heater comprises a shell 1, a locking opening 2 is fixedly connected inside the shell 1, a plurality of evenly distributed arc grooves 3 are opened inside the locking opening 2, a locking frame 4 is slidably connected inside the shell 1, two symmetrically distributed threaded tubes 5 are fixedly connected to the lower end of the locking frame 4, four evenly distributed fixing columns 6 are fixedly connected inside the shell 1, four evenly distributed guide grooves 10 are opened on the outer side of the locking frame 4, the upper end of the shell 1 contacts with a water heater shell 7, and a screw 8 is movably connected inside the water heater shell 7.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The locking port 2 and the shell 1 are an integrated structure, and the multiple arc grooves 3 are distributed in a cone shape. The diameters of the multiple arc grooves 3 decrease step by step. The wires can be gradually tightened between the arc grooves 3 and the tapered grooves 11. The threaded tube 5 and the locking frame 4 are an integrated structure. A tapered groove 11 is provided at the center of the locking frame 4. The integrated structure can effectively increase the connection strength between the threaded tube 5 and the locking frame 4. The shape of the fixing column 6 is square, and the fixing column 6 is slidably connected to the guide groove 10. The fixing column 6 can guide the locking frame 4, so that the center of the hole on the shell 1 can be aligned with the center of the hole of the locking frame 4, which is convenient for installing the screw 8.

[0022] See also Figure 1 , Figure 6 A sealing ring 9 is fixedly connected to the upper end of the outer shell 1. The sealing ring 9 is in contact with the water heater shell 7. The sealing ring 9 can increase the sealing between the outer shell 1 and the water heater shell 7. The screw 8 is connected to the locking frame 4 through a thread. The screw 8 is connected to the threaded pipe 5 through a thread. The screw 8 can drive the locking frame 4 to move inside the outer shell 1 through the thread cooperation with the locking frame 4.

[0023] The specific implementation process of the utility model is as follows: when in use, the shell 1 is placed inside the water heater shell 7, and then the power cord is passed through the inside of the shell 1. After passing through, the guide groove 10 on the outside of the locking frame 4 is aligned with the fixing column 6, and the locking frame 4 is slid into the inside of the shell 1. In the process of gradually sliding into the inside of the shell 1, the locking frame 4 can perform preliminary squeezing on the power cord through the tapered groove 11, and then the screw 8 is inserted into the inside of the locking frame 4. After insertion, the screw 8 is rotated. The screw 8 drives the locking frame 4 to continue to move into the inside of the shell 1 through the threaded cooperation between the locking frame 4 and the threaded tube 5. When the screw 8 is tightened, the power cord can be limited.

[0024] 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 power cord fixing device for an electric water heater, comprising a housing (1), characterized in that: The interior of the shell (1) is fixedly connected with a locking opening (2), and the interior of the locking opening (2) is provided with a plurality of evenly distributed arc grooves (3). The interior of the shell (1) is slidably connected with a locking frame (4), and the lower end of the locking frame (4) is fixedly connected with two symmetrically distributed threaded tubes (5). The interior of the shell (1) is fixedly connected with four evenly distributed fixing columns (6), and the outer side of the locking frame (4) is provided with four evenly distributed guide grooves (10). The upper end of the shell (1) contacts with a water heater shell (7), and the interior of the water heater shell (7) is movably connected with a screw (8).

2. The electric water heater power cord fixing device according to claim 1, characterized in that: The locking opening (2) and the housing (1) are of an integrated structure, the plurality of circular arc grooves (3) are distributed in a conical shape, and the diameters of the plurality of circular arc grooves (3) decrease step by step.

3. The electric water heater power line fixing device according to claim 1, characterized in that: The threaded tube (5) and the locking frame (4) are an integrated structure, and a conical groove (11) is provided at the center of the locking frame (4).

4. The electric water heater power line fixing device according to claim 1, characterized in that: The fixing column (6) is square in shape, and the fixing column (6) is slidably connected to the guide groove (10).

5. The electric water heater power cord fixing device according to claim 1, characterized in that: A sealing ring (9) is fixedly connected to the upper end of the outer shell (1), and the sealing ring (9) is in contact with the water heater shell (7).

6. The electric water heater power line fixing device according to claim 1, characterized in that: The screw (8) is connected to the locking frame (4) via threads, and the screw (8) is connected to the threaded tube (5) via threads.

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