Double-hole magnesium oxide rod

Abstract

The utility model relates to the technical field of magnesium rods of electric water heaters, in particular to a double-hole magnesium oxide rod. Comprising an insulating base and an auxiliary device, the auxiliary device comprises a mounting base, tensioning screws, a sleeve, a magnesium rod body, a limiting head, a sealing gasket and a sealing assembly, when the magnesium rod body is replaced, the insulating base is firstly disassembled, then the limiting head is disassembled, the magnesium rod body can be directly taken down from the sleeve to be replaced, and further, the multiple tensioning screws are disassembled, so that the magnesium rod body is replaced. The insulating seat and the mounting seat can be separated and replaced, so that the magnesium rod body can be independently replaced when the magnesium rod body needs to be replaced in use, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesium rods for electric water heaters, in particular to a double-hole magnesium oxide rod. Background Art

[0002] Magnesium rods are often used in water heaters to prevent corrosion of the metal liner and soften the water quality. Most of them use Taigang or manganese steel metal liner. The electrochemical anti-corrosion sacrificial anode protects the cathode principle of metal in water. The magnesium rod is used as the anode and the metal liner is used as the cathode. The magnesium rod is installed in the middle of the metal liner.

[0003] At present, the magnesium rod used in electric water heaters is usually connected to the mounting base and fixed at the drain hole of the electric water heater. Since the magnesium rod and the fixing base adopt an integrated structure, when the magnesium rod reaches the service life and needs to be replaced, the fixing base needs to be replaced together with the magnesium rod, resulting in an increase in the cost of the fixing base and thus an increase in the cost of use. Utility Model Content

[0004] The purpose of the utility model is to provide a double-hole magnesium oxide rod, which can be replaced separately when the magnesium rod body needs to be replaced during use, thereby reducing the use cost.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: The present invention provides a double-hole magnesium oxide rod, including an insulating seat and an auxiliary device;

[0006] The auxiliary device includes a mounting seat, a tightening screw, a sleeve, a magnesium rod body, a limit head, a sealing gasket and a sealing assembly. The mounting seat is detachably connected to the insulating seat and is located on one side of the insulating seat. The tightening screw is detachably connected to the insulating seat and is threadedly connected to the mounting seat and is located on the side of the insulating seat close to the mounting seat. The sleeve is integrally formed with the mounting seat and is located on the side of the mounting seat away from the insulating seat. The magnesium rod body is sleeved on the outside of the sleeve. The limit head is threadedly connected to the sleeve and is located on the side of the sleeve close to the magnesium rod body. The sealing gasket is sleeved on the outside of the mounting seat and is located between the mounting seat and the insulating seat. The sealing assembly is arranged on the side of the mounting seat close to the insulating seat.

[0007] Wherein, the outer surface of the casing is provided with a corrosion-resistant layer.

[0008] The sealing assembly includes a first O-ring and a matching component. The first O-ring is detachably connected to the insulating seat, sleeved on the outside of the mounting seat, and located inside the insulating seat. The matching component is arranged on one side of the first O-ring.

[0009] Wherein, the mating component includes a second O-ring and a third O-ring, the second O-ring is detachably connected to the insulating seat, and is sleeved on the outside of the mounting seat, and is located on the side of the insulating seat close to the first O-ring; the third O-ring is detachably connected to the insulating seat, and is sleeved on the outside of the mounting seat, and is located on the side of the insulating seat close to the second O-ring.

[0010] Wherein, the auxiliary device further includes a limit block, which is threadedly connected to the insulating seat and is located on a side of the insulating seat away from the magnesium rod body.

[0011] The utility model discloses a double-hole magnesium oxide rod, an insulating seat is used to install and fix the magnesium rod body on the water heater shell, the mounting seat is connected and matched with the insulating seat by a tightening screw, the sleeve and the mounting seat are formed in one piece to ensure strength, the magnesium rod body is sleeved on the outside of the sleeve, the limit head is installed on the sleeve, the sealing gasket is sleeved on the mounting seat, and the sealing component is arranged on the side of the mounting seat close to the insulating seat. When the magnesium rod body is replaced, the insulating seat is first removed, and then the limit head is removed. At this time, the magnesium rod body can be directly removed from the sleeve for replacement. Further, by removing multiple tightening screws, the insulating seat and the mounting seat can be separated and replaced, and then when the magnesium rod body needs to be replaced during use, it can be replaced separately, which is beneficial to reduce the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention can be further described by way of non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of the double-hole magnesium oxide rod of the first embodiment of the present utility model.

[0014] Figure 2 This is a schematic structural diagram of the mounting base according to the first embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the overall structure of a double-hole magnesium oxide rod according to the second embodiment of the present invention.

[0016] In the figure: 101-insulating seat, 102-mounting seat, 103-tensioning screw, 104-sleeve, 105-magnesium rod body, 106-limiting head, 107-sealing gasket, 108-corrosion-resistant layer, 109-first O-ring, 110-second O-ring, 111-third O-ring, 201-limiting block. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0018] Example 1:

[0019] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the overall structure of a double-hole magnesium oxide rod. Figure 2 It is a structural diagram of the mounting base 102. The utility model provides a double-hole magnesium oxide rod: including an insulating base 101 and an auxiliary device, the auxiliary device including a mounting base 102, a tightening screw 103, a sleeve 104, a magnesium rod body 105, a limit head 106, a sealing gasket 107 and a sealing assembly, the sealing assembly including a first O-ring 109 and a matching component, the matching component including a second O-ring 110 and a third O-ring 111. The above-mentioned scheme can be used to achieve that when the magnesium rod body 105 needs to be replaced, it can be replaced separately, which is conducive to reducing the cost of use. It can be understood that the above-mentioned scheme can achieve the replacement of the magnesium rod body 105 separately, reducing the cost of use.

[0020] In this embodiment, the insulating seat 101 is used to fix the magnesium rod body 105 on the electric water heater.

[0021] Among them, the mounting seat 102 is detachably connected to the insulating seat 101 and is located on one side of the insulating seat 101, the tightening screw 103 is detachably connected to the insulating seat 101, and is threadedly connected to the mounting seat 102, and is located on the side of the insulating seat 101 close to the mounting seat 102, the sleeve 104 is integrally formed with the mounting seat 102, and is located on the side of the mounting seat 102 away from the insulating seat 101, the magnesium rod body 105 is sleeved on the outside of the sleeve 104, the limit head 106 is threadedly connected to the sleeve 104, and is located on the side of the sleeve 104 close to the magnesium rod body 105, the sealing gasket 107 is sleeved on the outside of the mounting seat 102, and is located between the mounting seat 102 and the insulating seat 101, and the sealing assembly is arranged on the side of the mounting seat 102 close to the insulating seat 101. The external threaded end portion on the insulating seat 101 is used for installation and fixation, and the external hexagonal end portion is provided for easy wrench clamping. A countersunk through hole is provided on the insulating seat 101, and a circular array is provided to facilitate the passage of the tightening screw 103. A threaded hole is provided on the mounting seat 102 to facilitate the installation and cooperation of the tightening screw 103. The sleeve 104 is integrally formed with the mounting seat 102 to ensure strength. The external threaded end portion of the sleeve 104 away from the mounting seat 102 will facilitate the installation of the limit head 106. The magnesium rod body 105 can be directly sleeved on the outside of the sleeve 104 and limited by the limit head 106. The magnesium rod body 105 is in position, and waterproof pads are provided on both sides of the magnesium rod body 105 and the contact end faces of the limit head 106 and the mounting seat 102 to prevent water from entering the interior of the magnesium rod body 105. The sealing gasket 107 is sleeved on the mounting seat 102. When the mounting seat 102 is tightened by the tightening screw 103, the sealing gasket 107 will be used to waterproof the end faces of the mounting seat 102 and the insulating seat 101. The connecting part of the mounting seat 102 will just slide into the matching cavity of the insulating seat 101. The sealing assembly is arranged on the side of the mounting seat 102 close to the insulating seat 101 to further prevent water leakage.

[0022] Secondly, a corrosion-resistant layer 108 is provided on the outer surface of the sleeve 104. The function of the corrosion-resistant layer 108 is to enhance the corrosion resistance of the sleeve 104 and extend its service life.

[0023] The first O-ring 109 is then detachably connected to the insulating seat 101 and fitted onto the outside of the mounting seat 102, within the insulating seat 101. The mating member is positioned on one side of the first O-ring 109. A mounting groove is defined within the insulating seat 101 to facilitate insertion and installation of the first O-ring 109. The first O-ring 109 is a heat-resistant rubber ring that fits over the outside of the connection portion of the mounting seat 102. The mating member is positioned on one side of the first O-ring 109 to provide a leak-proof fit.

[0024] Finally, the second O-ring 110 is detached from the insulating seat 101, and is sleeved on the outside of the mounting seat 102, and is located on the side of the insulating seat 101 close to the first O-ring 109; the third O-ring 111 is detached from the insulating seat 101, and is sleeved on the outside of the mounting seat 102, and is located on the side of the insulating seat 101 close to the second O-ring 110. An installation groove is provided in the insulating seat 101 to facilitate the embedded installation of the second O-ring 110 and the third O-ring 111. The second O-ring 110 and the third O-ring 111 are both heat-resistant rubber rings, which can be respectively sleeved on the outside of the connecting portion of the mounting seat 102. The first O-ring 109, the second O-ring 110 and the third O-ring 111 will form a stepped hierarchical waterproof structure at the connecting portion of the mounting seat 102 and the matching cavity of the insulating seat 101 to prevent water from flowing out of the through hole on the insulating seat 101 for the tensioning screw 103 to pass through. At the same time, after the mounting seat 102 is tightened, its frontmost end face will abut against the insulating seat 101, which will also be able to achieve a certain water leakage prevention effect.

[0025] When the magnesium rod body 105 is replaced separately through the present invention to reduce the use cost, first, it can be installed and fixed through the insulating seat 101. Then, when the magnesium rod body 105 is replaced, the insulating seat 101 is first removed, and then the limit head 106 is removed. At this time, the magnesium rod body 105 can be directly removed from the sleeve 104 for replacement. Further, the multiple tightening screws 103 are removed to separate and replace the insulating seat 101 and the mounting seat 102. Therefore, when the magnesium rod body 105 needs to be replaced during use, it can be replaced separately, which is beneficial to reduce the use cost.

[0026] Example 2:

[0027] like Figure 3 As shown, Figure 3 20 is a schematic diagram of the overall structure of a double-hole magnesium oxide rod. On the basis of the first embodiment, the utility model provides a double-hole magnesium oxide rod, and the auxiliary device further includes a limit block 201.

[0028] The stopper 201 is threadedly connected to the insulating seat 101 and is located on the side of the insulating seat 101 away from the magnesium rod body 105. The inner hole of the outer hexagonal end of the insulating seat 101 is set as a threaded hole to facilitate the installation of the stopper 201. The front end surface of the stopper 201 is provided with an inner hexagonal hole to facilitate the rotation of the wrench.

[0029] In this embodiment, by providing the limit block 201 , after the limit block 201 is installed, its inner end face will abut against the head end face of the tensioning screw 103 , thereby preventing the tensioning screw 103 from loosening.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A double-hole magnesium oxide rod, including an insulating seat, characterized in that: Also includes auxiliary devices; The auxiliary device includes a mounting seat, a tightening screw, a sleeve, a magnesium rod body, a limit head, a sealing gasket and a sealing assembly. The mounting seat is detachably connected to the insulating seat and is located on one side of the insulating seat. The tightening screw is detachably connected to the insulating seat and is threadedly connected to the mounting seat and is located on the side of the insulating seat close to the mounting seat. The sleeve is integrally formed with the mounting seat and is located on the side of the mounting seat away from the insulating seat. The magnesium rod body is sleeved on the outside of the sleeve. The limit head is threadedly connected to the sleeve and is located on the side of the sleeve close to the magnesium rod body. The sealing gasket is sleeved on the outside of the mounting seat and is located between the mounting seat and the insulating seat. The sealing assembly is arranged on the side of the mounting seat close to the insulating seat.

2. The double-hole magnesium oxide rod according to claim 1, characterized in that: The outer surface of the sleeve is provided with a corrosion-resistant layer.

3. The double-hole magnesium oxide rod according to claim 1, characterized in that: The sealing assembly includes a first O-ring and a matching component. The first O-ring is detachably connected to the insulating seat and is sleeved on the outside of the mounting seat and located inside the insulating seat. The matching component is arranged on one side of the first O-ring.

4. The double-hole magnesium oxide rod according to claim 3, characterized in that: The mating component includes a second O-ring and a third O-ring, the second O-ring is detachably connected to the insulating seat, sleeved on the outside of the mounting seat, and located on the side of the insulating seat close to the first O-ring; the third O-ring is detachably connected to the insulating seat, sleeved on the outside of the mounting seat, and located on the side of the insulating seat close to the second O-ring.

5. The double-hole magnesium oxide rod according to claim 1, characterized in that: The auxiliary device also includes a limit block, which is threadedly connected to the insulating seat and is located on a side of the insulating seat away from the magnesium rod body.

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