Cathode protection zinc alloy sacrificial anode

Abstract

The utility model discloses a cathode protection zinc alloy sacrificial anode, which belongs to the technical field of sacrificial anodes, and comprises a sacrificial anode body and a connecting block fixed on the side surface of the sacrificial anode body, a protection box is arranged outside the sacrificial anode body, and the outer surface of the protection box is fixedly connected with a fixed box. A movable mechanism is arranged in the fixing box, and a baffle is arranged above the connecting block. According to the cathode protection zinc alloy sacrificial anode, the baffle is pulled, so that the baffle does not limit the connecting block any more, the sacrificial anode body is directly taken out, the effect of being convenient to disassemble is achieved, a new sacrificial anode body is placed in the protection box, the connecting block extrudes the baffle to enter the protection box, and the sacrificial anode body is prevented from being damaged. The movable mechanism drives the baffle to reset, the baffle limits the connecting block, and therefore the connecting block and the sacrificial anode body are fixed into the protection box, the cover plate is installed, and the effect of convenient installation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sacrificial anodes, in particular to a cathode protection zinc alloy sacrificial anode. Background Art

[0002] Zinc alloy sacrificial anode is an anode material used in cathodic protection systems. It can protect the cathode by sacrificing itself. That is, when the anode material undergoes an electrochemical reaction, it releases electrons. These electrons are transferred to the cathode through the electrolyte and neutralize the corrosion current on the cathode, thereby slowing down or stopping the corrosion process of the metal. It is mostly used in soil environments or seawater environments. It is generally set on the outer surface of the metal to protect equipment or hulls and slow down the corrosion damage they suffer.

[0003] Existing zinc alloy sacrificial anodes are generally fixed to the outer surface of a hull or other metal by welding or the like, and protect the hull or other equipment from corrosion by sacrificing themselves. Since the zinc alloy sacrificial anode is a consumable material, it will gradually consume its own metal components in the process of protecting the metal structure to maintain the potential difference with the cathode, thereby achieving a protective effect. Therefore, the zinc alloy sacrificial anode needs to be replaced at regular intervals, and welding is not convenient for replacement and the efficiency is too low. In order to solve this technical problem, the utility model proposes a cathodic protection zinc alloy sacrificial anode. Utility Model Content

[0004] The main purpose of the utility model is to provide a cathodic protection zinc alloy sacrificial anode, which can effectively solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A cathodic protection zinc alloy sacrificial anode comprises a sacrificial anode body and a connecting block fixed to the side of the sacrificial anode body, a protective box is arranged outside the sacrificial anode body, a fixing box is fixedly connected to the outer surface of the protective box, a movable mechanism is arranged inside the fixing box, a baffle is arranged above the connecting block, the outer surface of the baffle is slidably connected to the protective box, a supporting mechanism is arranged below the connecting block, an elastic mechanism is arranged below the movable mechanism, a cover plate is slidably connected to the upper part of the protective box, a threaded rod is threadedly connected to the inner wall of the cover plate, and the lower surface of the threaded rod is in contact with a pressure plate.

[0007] Preferably, a sealing sleeve is fixedly connected to the lower surface of the protection box, a limiting rod is fixedly connected to the outer surface of the protection box, and the outer surface of the limiting rod is slidably connected to the cover plate.

[0008] Preferably, the supporting mechanism comprises a top plate, the upper surface of the top plate is in contact with the connecting block, the lower surface of the top plate is fixedly connected with a second spring, and the lower end of the second spring is fixedly connected to the protective box.

[0009] Preferably, the movable mechanism includes a sliding box, the inner wall of the sliding box is slidably connected to the baffle, a first spring is fixedly connected to one side of the baffle, an end of the first spring away from the baffle is fixedly connected to the sliding box, and the upper surface of the sliding box is fixedly connected to the pressure plate.

[0010] Preferably, a sliding block is fixedly connected to the side of the sliding box, the outer surface of the sliding block is slidably connected to a vertical rod, one side of the vertical rod is fixedly connected to the protective box, one end of the sliding box is fixedly connected to a sliding ring, the inner wall of the sliding ring is slidably connected to a fixed rod, and the lower surface of the fixed rod is fixedly connected to the fixed box.

[0011] Preferably, the elastic mechanism comprises a fixed cylinder, a lower surface of which is fixedly connected to the fixed box, a support rod is provided above the fixed cylinder, and an upper surface of which is fixedly connected to the sliding box.

[0012] Preferably, a third spring is provided inside the fixed cylinder, the inner side of the third spring is slidably connected to the support rod, one end of the third spring is fixedly connected to the sliding box, and the other end of the third spring is fixedly connected to the fixed box.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, by arranging components such as baffles and movable mechanisms, the cover plate is first slid off the protection box, and then the baffle is pulled so that the baffle no longer restricts the connection block, and the sacrificial anode body can be directly taken out, thereby achieving the effect of easy removal, and a new sacrificial anode body is placed inside the protection box, so that the connection block squeezes the baffle into it, and the baffle is driven to reset by the movable mechanism, and the baffle restricts the connection block, so that the connection block and the sacrificial anode body are fixed to the inside of the protection box, and the cover plate is installed, thereby achieving the effect of easy installation.

[0015] In the utility model, by arranging components such as a threaded rod and a sealing sleeve, when the threaded rod is screwed downward, the threaded rod will press the pressure plate downward, and the pressure plate drives the baffle plate to press the connection block through the sliding box, so that the sacrificial anode body moves downward, so that it is in tight contact with the metal structure, and the use effect is increased. Through the movement amplitude of the baffle plate, it can be suitable for sacrificial anode bodies of different thicknesses, achieving the effect of increasing applicability. The lower part of the connection block is supported by the supporting mechanism to increase the stability of the connection block. By arranging the sealing sleeve and the cover plate, the sacrificial anode body is sealed to prevent external dust or liquid from entering, and the sacrificial anode body is prevented from being corroded by the outside, thereby increasing the service life of the sacrificial anode body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a cathodic protection zinc alloy sacrificial anode of the utility model;

[0017] Figure 2 It is a cross-sectional view of a protective box in a cathodic protection zinc alloy sacrificial anode of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of a supporting mechanism in a cathodic protection zinc alloy sacrificial anode of the utility model;

[0019] Figure 4 It is a cross-sectional view of a sliding box in a cathodic protection zinc alloy sacrificial anode of the utility model;

[0020] Figure 5 The utility model is a cross-sectional view of a sealing sleeve in a cathodic protection zinc alloy sacrificial anode.

[0021] In the figure: 1. protective box; 2. sacrificial anode body; 3. connecting block; 4. fixed box; 5. movable mechanism; 501. sliding box; 502. first spring; 503. sliding block; 504. vertical rod; 505. sliding ring; 506. fixed rod; 6. baffle; 7. supporting mechanism; 701. top plate; 702. second spring; 8. elastic mechanism; 801. fixed cylinder; 802. supporting rod; 803. third spring; 9. cover plate; 10. threaded rod; 11. pressure plate; 12. sealing sleeve; 13. limit rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-5As shown, a cathodic protection zinc alloy sacrificial anode comprises a sacrificial anode body 2 and a connecting block 3 fixed on the side of the sacrificial anode body 2. There are two connecting blocks 3, which are arranged on both sides of the sacrificial anode body 2. A protective box 1 is arranged on the outside of the sacrificial anode body 2. A fixing box 4 is fixedly connected to the outer surface of the protective box 1. There are four fixing boxes 4, which are respectively arranged at the four corners of the protective box 1. A movable mechanism 5 is arranged inside the fixing box 4. A baffle 6 is arranged above the connecting block 3. There are four baffles 6 and movable mechanisms 5 respectively. An inclined surface is arranged on the baffle 6. The movable mechanism 5 comprises a sliding box 501. The inner wall of the sliding box 501 is slidably connected to the baffle 6. A first spring 502 is fixedly connected to one side of the baffle 6. The end of the first spring 502 away from the baffle 6 is fixedly connected to the sliding box 501. The first spring 502 gives The baffle plate 6 has an elastic force that moves outward so that it can always block the connecting block 3. The upper surface of the sliding box 501 is fixedly connected to the pressure plate 11. The side of the sliding box 501 is fixedly connected to the sliding block 503. The outer surface of the sliding block 503 is slidably connected to the vertical rod 504. One side of the vertical rod 504 is fixedly connected to the protective box 1. The sliding block 503 and the vertical rod 504 are used to limit one end of the sliding box 501 to prevent it from tilting. A sliding ring 505 is fixedly connected to one end of the sliding box 501. The inner wall of the sliding ring 505 is slidably connected to the fixing rod 506. The lower surface of the fixing rod 506 is fixedly connected to the fixing box 4. The other end of the sliding box 501 is limited by the sliding ring 505 and the fixing rod 506 to prevent it from tilting. The two limits make the sliding box 501 only slide up and down, thereby increasing the stability of the sliding box 501.

[0024] The outer surface of the baffle 6 is slidably connected to the protective box 1. A rectangular groove is provided on the protective box 1 to allow the baffle 6 to move up and down. A supporting mechanism 7 is provided below the connecting block 3. The supporting mechanism 7 includes a top plate 701. The upper surface of the top plate 701 is in contact with the connecting block 3. The lower surface of the top plate 701 is fixedly connected to a second spring 702. The lower end of the second spring 702 is fixedly connected to the protective box 1. The top plate 701 can move up and down to adapt to connecting blocks 3 of different thicknesses. At the same time, the connecting block 3 is supported by the second spring 702 to increase its stability.

[0025] An elastic mechanism 8 is arranged below the movable mechanism 5, and two elastic mechanisms 8 are arranged under each movable mechanism 5. The elastic mechanism 8 includes a fixed cylinder 801, and the lower surface of the fixed cylinder 801 is fixedly connected to the fixed box 4. A support rod 802 is arranged above the fixed cylinder 801, and the upper surface of the support rod 802 is fixedly connected to the sliding box 501. A third spring 803 is arranged inside the fixed cylinder 801, and the inner side of the third spring 803 is slidably connected to the support rod 802. One end of the third spring 803 is fixedly connected to the sliding box 501, and the other end of the third spring 803 is fixedly connected to the fixed box 4. The third spring 803 is supported by the fixed cylinder 801 and the support rod 802 to prevent the middle part of the third spring 803 from bending. The elastic force of the third spring 803 is stronger than that of the first spring 502. When the connecting block 3 squeezes the baffle 6, the baffle 6 will move toward the inside of the sliding box 501, and the third spring 803 also allows the sliding box 501 to move up and down.

[0026] The upper part of the protective box 1 is slidably connected with a cover plate 9, and the outer surface of the protective box 1 is fixedly connected with a limiting rod 13. The outer surface of the limiting rod 13 is slidably connected to the cover plate 9, and the limiting rod 13 limits the cover plate 9 to prevent the cover plate 9 from moving upward, and at the same time increases the sealing of the cover plate 9 and the protective box 1. The inner wall of the cover plate 9 is threadedly connected with a threaded rod 10. There are four threaded rods 10. The lower surface of the threaded rod 10 is in contact with the pressure plate 11. The threaded rod 10 can be inserted into the inside of the pressure plate 11. Through the pressure plate 11, the movable mechanism 5 and the baffle 6 can be driven to move downward. At the same time, the pressure plate 11 limits the threaded rod 10 to prevent it from shifting and tilting, thereby preventing the cover plate 9 from moving horizontally. The lower surface of the protective box 1 is fixedly connected with a sealing sleeve 12, and the sealing sleeve 12 can increase the sealing effect between the protective box 1 and the metal structure.

[0027] It should be noted that in actual use of the device, the protective box 1 is first fixed to the outer surface of the metal structure by bolts, and the bolts are tightened to move the protective box 1 closer to the metal structure, thereby squeezing the sealing sleeve 12 to increase the sealing effect between the protective box 1 and the metal structure, prevent external dust or liquid from entering, and protect the internal sacrificial anode body 2.

[0028] When the sacrificial anode body 2 needs to be replaced, firstly, the four threaded rods 10 are screwed to pull the threaded rods 10 out from the cover plate 9, the cover plate 9 is slid, and the cover plate 9 is slid off the protection box 1, and then the baffle 6 is pulled to move the baffle 6 toward the inside of the sliding box 501, so that the connection block 3 is no longer restricted, and the sacrificial anode body 2 can be directly taken out, so as to achieve the effect of easy removal, and the new sacrificial anode body 2 is placed in the inside of the protection box 1, so that the connection block 3 squeezes the baffle 6 to move the baffle 6 toward the inside of the sliding box 501, and the first spring 502 is squeezed, and when the connecting block 3 completely passes over the baffle 6, the first spring 502 rebounds and drives the baffle 6 to reset. The baffle 6 limits the connecting block 3, thereby fixing the connecting block 3 and the sacrificial anode body 2 to the inside of the protective box 1, and then installing the cover plate 9, and then inserting the four threaded rods 10, so that the lower ends of the threaded rods 10 are inserted into the inside of the pressure plate 11, and the cover plate 9 is prevented from moving upward by the limit rod 13, and the cover plate 9 is prevented from sliding left and right by the pressure plate 11 and the threaded rods 10, thereby fixing the cover plate 9, achieving the effect of easy installation.

[0029] When the threaded rod 10 is screwed downward, the threaded rod 10 will press the pressure plate 11 downward, and the pressure plate 11 drives the baffle 6 to press the connection block 3 through the sliding box 501, so that the sacrificial anode body 2 moves downward, so that it is in close contact with the metal structure, increasing the applicability effect. Through the movement amplitude of the baffle 6, it can be applicable to sacrificial anode bodies 2 of different thicknesses, achieving the effect of increasing use. The elastic mechanism 8 provides the sliding box 501 with an upward elastic force, so that when the connection block 3 presses the baffle 6, the baffle 6 is prevented from moving downward, so that the baffle 6 is retracted into the sliding box 501. The lower part of the connection block 3 is supported by the supporting mechanism 7 to increase the stability of the connection block 3. By arranging the sealing sleeve 12 and the cover plate 9, the sacrificial anode body 2 is sealed to prevent external dust or liquid from entering, and to prevent the sacrificial anode body 2 from being corroded by the outside, and the sacrificial anode body 2 is only allowed to be used by contacting with the metal structure, thereby increasing the service life of the sacrificial anode body 2.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cathodic protection zinc alloy sacrificial anode, comprising a sacrificial anode body (2) and a connecting block (3) fixed to the side of the sacrificial anode body (2), characterized in that: A protective box (1) is arranged outside the sacrificial anode body (2), a fixed box (4) is fixedly connected to the outer surface of the protective box (1), a movable mechanism (5) is arranged inside the fixed box (4), a baffle (6) is arranged above the connecting block (3), the outer surface of the baffle (6) is slidably connected to the protective box (1), a supporting mechanism (7) is arranged below the connecting block (3), an elastic mechanism (8) is arranged below the movable mechanism (5), a cover plate (9) is slidably connected to the upper part of the protective box (1), a threaded rod (10) is threadedly connected to the inner wall of the cover plate (9), and the lower surface of the threaded rod (10) is in contact with the pressure plate (11).

2. A cathodic protection zinc alloy sacrificial anode according to claim 1, characterized in that: The lower surface of the protection box (1) is fixedly connected to a sealing sleeve (12), the outer surface of the protection box (1) is fixedly connected to a limiting rod (13), and the outer surface of the limiting rod (13) is slidably connected to the cover plate (9).

3. A cathodic protection zinc alloy sacrificial anode according to claim 2, characterized in that: The support mechanism (7) comprises a top plate (701), the upper surface of the top plate (701) is in contact with the connection block (3), the lower surface of the top plate (701) is fixedly connected to a second spring (702), and the lower end of the second spring (702) is fixedly connected to the protection box (1).

4. A cathodic protection zinc alloy sacrificial anode according to claim 3, characterized in that: The movable mechanism (5) comprises a sliding box (501), the inner wall of the sliding box (501) is slidably connected to the baffle (6), a first spring (502) is fixedly connected to one side of the baffle (6), an end of the first spring (502) away from the baffle (6) is fixedly connected to the sliding box (501), and the upper surface of the sliding box (501) is fixedly connected to the pressure plate (11).

5. A cathodic protection zinc alloy sacrificial anode according to claim 4, characterized in that: A sliding block (503) is fixedly connected to the side of the sliding box (501), and a vertical rod (504) is slidably connected to the outer surface of the sliding block (503), and one side of the vertical rod (504) is fixedly connected to the protective box (1). A sliding ring (505) is fixedly connected to one end of the sliding box (501), and a fixed rod (506) is slidably connected to the inner wall of the sliding ring (505), and the lower surface of the fixed rod (506) is fixedly connected to the fixed box (4).

6. A cathodic protection zinc alloy sacrificial anode according to claim 5, characterized in that: The elastic mechanism (8) comprises a fixed cylinder (801), the lower surface of which is fixedly connected to the fixed box (4), and a support rod (802) is arranged above the fixed cylinder (801), the upper surface of which is fixedly connected to the sliding box (501).

7. A cathodic protection zinc alloy sacrificial anode according to claim 6, characterized in that: A third spring (803) is disposed inside the fixed cylinder (801), the inner side of the third spring (803) is slidably connected to the support rod (802), one end of the third spring (803) is fixedly connected to the sliding box (501), and the other end of the third spring (803) is fixedly connected to the fixed box (4).

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