Sealing structure of cathode probe

Abstract

The utility model belongs to the technical field of cathode probes, and particularly relates to a sealing structure of a cathode probe, which comprises a sulfuric acid pipeline, the outer side of the sulfuric acid pipeline is fixedly sleeved with an end head I, the upper end of the sulfuric acid pipeline is in contact with a sealing sleeve, the outer side of the sealing sleeve is fixedly sleeved with an end head II, the end head II is in contact with the end head I, and the end head I is in contact with the sealing sleeve. A third end is fixedly connected to the outer side of the sealing sleeve in a sleeving mode, a bolt is movably connected to the interior of the second end and the interior of the first end together, a nut is connected to the outer side of the bolt through threads, and the nut makes contact with the first end. According to the scheme, through the arrangement of the bolt and the nut, the first end and the second end can be locked, so that connection sealing and stability of the sealing sleeve and the sulfuric acid pipeline are guaranteed, under the action of the fixing disc and the anti-rust spring, the nut can be tightly jacked and limited, the problem of vibration loosening of the bolt and the nut is avoided, and long-term stability of the sealing sleeve and the sulfuric acid pipeline is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of cathode probes, and particularly relates to a sealing structure of a cathode probe. Background Art

[0002] In sulfuric acid conveying pipelines, cathodic protection is sometimes used to prevent pipeline corrosion. Cathodic protection is an electrochemistry technology. By applying current to the pipeline surface, the pipeline surface is used as the cathode, thereby inhibiting the occurrence of corrosion reactions. In sulfuric acid conveying pipelines, cathode probes can be used to monitor the effect of the cathodic protection system;

[0003] Cathode probes are important anti-corrosion devices on sulfuric acid conveying pipelines. With the aging of sulfuric acid conveying pipelines in the acid-making workshop, leaks will occur at the welds during the installation of cathode probes. The traditional repair method is to grind and repair the welds after parking. The parking repair operation will affect the normal production of the workshop and reduce production efficiency.

[0004] In view of the above problems, this application document proposes a sealing structure of a cathode probe. Summary of the Invention

[0005] The purpose of the utility model is to provide a sealing structure of a cathode probe, which solves the problem that with the aging of sulfuric acid conveying pipelines in the acid-making workshop, leaks will occur at the welds during the installation of cathode probes. The traditional repair method is to grind and repair the welds after parking. The parking repair operation will affect the normal production of the workshop and reduce production efficiency.

[0006] To achieve the above purpose, the utility model provides a sealing structure of a cathode probe, including a sulfuric acid pipeline. A first end is fixedly sleeved outside the sulfuric acid pipeline. A sealing sleeve is in contact with the upper end of the sulfuric acid pipeline. A second end is fixedly sleeved outside the sealing sleeve. The second end is in contact with the first end. A third end is fixedly sleeved outside the sealing sleeve. A bolt is movably connected inside the second end and the first end. A nut is threadedly connected to the outside of the bolt. The nut is in contact with the first end. A fixing plate is fixedly sleeved on the outside of the bolt. An anti-rust spring is arranged on the outside of the bolt. A support plate is fixedly connected to the surface of the sealing sleeve.

[0007] The principle of the utility model is as follows: By pushing the first end into contact with the second end, and then pushing the bolt through the first end and the second end, under the threaded connection relationship, the nut can be installed so that the nut is in contact with the second end. Then, the anti-rust spring is pushed to be sleeved on the outside of the bolt, and the anti-rust spring and the nut are welded and fixed. Then, the fixing plate is welded and fixed, and the other end of the anti-rust spring is welded to the fixing plate, so that the anti-rust spring tightly presses the nut to ensure the locking effect of the bolt and the nut, and the sulfuric acid pipeline and the sealing sleeve are hermetically connected.

[0008] By pushing the cathode probe body into the sealed sleeve, under the action of the mounting part (arc-shaped screw plate), the cathode probe body can be fixed. During this process, the arc-shaped head of the cathode probe body squeezes the sealing piece to push the sealing piece to move, and then pushes the hard piece to move. The elastic piece deforms. When the hard piece moves, it can drive the slider to slide along the inner wall of the chute to ensure the stable movement of the hard piece and the sealing piece. Under the action of the elastic piece, the sealing piece can be pushed to always contact the cathode probe body to ensure the sealing effect of the sealing piece.

[0009] The beneficial effects of the present utility model are as follows: Through the arrangement of bolts and nuts, the first end and the second end can be locked to ensure the connection sealing and stability between the sealed sleeve and the sulfuric acid pipeline. Under the action of the fixed plate and the anti-rust spring, the nut can be tightened and limited to avoid the problem of vibration loosening of the bolts and nuts, so as to ensure the long-term stability of the sealed sleeve and the sulfuric acid pipeline. Through the arrangement of the sealing piece, the cathode probe body can be sealed and protected. Under the action of the elastic piece, the sealing piece can be pushed to always contact the cathode probe body to ensure the sealing effect of the sealing piece, and avoid the problem that the deformation and extrusion force of the sealing ring become weak after long-term use in the prior art where only the sealing ring is used for sealing.

[0010] Further, four bolts are provided, and the four bolts are arranged in a circular array on the second end. Through the arrangement of the bolts, the first end and the second end can be locked, and then the sealed sleeve and the sulfuric acid pipeline can be connected and sealed for use.

[0011] Further, one end of the anti-rust spring is welded to the fixed plate, and the other end of the anti-rust spring is welded to the nut. Through the arrangement of the anti-rust spring, the nut can be tightened to avoid the problem of vibration loosening of the nut.

[0012] Further, two support plates are provided, and the two support plates are symmetrically distributed on the sealed sleeve. Through the arrangement of the support plates, the sealed sleeve can be supported.

[0013] Further, two symmetrically distributed mounting parts are arranged on the inner wall of the sealed sleeve, and a cathode probe body is jointly arranged between the two mounting parts. Two symmetrically distributed sealing pieces are slidably connected to the inner wall of the sealed sleeve. The two sealing pieces are in contact with each other. Each sealing piece is in contact with the cathode probe body. A hard piece is fixedly connected to the surface of each sealing piece. The hard piece is slidably connected to the sealed sleeve. An elastic piece is bonded to the end face of the hard piece away from the sealing piece, and the other end of the elastic piece is welded to the sealed sleeve. Through the deformation of the elastic piece, the sealing piece can be pushed to always be tightened and sealed with the cathode probe body to ensure the sealing effect of the sealing piece.

[0014] Furthermore, the whole of the rigid piece is arc-shaped, and the rigid piece is made of rigid PVC material. Through the arrangement of the rigid piece, the sealing piece can be installed and used.

[0015] Furthermore, a chute is provided inside the sealing sleeve, and a slider is slidably connected to the inner wall of the chute. The slider is fixedly connected to the rigid piece. Through the arrangement of the chute and the slider, the rigid piece can be guided. Description of the Drawings

[0016] Figure 1 It is a three-dimensional overall structure diagram of the sealing structure of the cathode probe in the embodiment of the present invention;

[0017] Figure 2 It is the Figure 1 top view of the sealing structure of the cathode probe in the embodiment of the present invention;

[0018] Figure 3 It is the Figure 2 front view cross-sectional view of the cathode probe body of the sealing structure of the cathode probe in the embodiment of the present invention;

[0019] Figure 4 It is the Figure 1 enlarged view at A of the sealing structure of the cathode probe in the embodiment of the present invention;

[0020] Figure 5 It is the Figure 3 enlarged view at B of the sealing structure of the cathode probe in the embodiment of the present invention. Detailed Embodiment

[0021] The following is further detailed through specific embodiments:

[0022] The reference numerals in the drawings of the specification include: sulfuric acid pipeline 1, first end 111, sealing sleeve 2, second end 21, third end 22, bolt 3, nut 4, fixed plate 5, anti-rust spring 6, support plate 7, mounting member 8, cathode probe body 9, sealing piece 10, rigid piece 11, elastic piece 12, chute 13, slider 14.

[0023] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown in the figure, this embodiment provides a sealing structure for a cathode probe, including a sulfuric acid pipeline 1. A first end piece 111 is fixedly sleeved outside the sulfuric acid pipeline 1. A sealing sleeve 2 is in contact with the upper end of the sulfuric acid pipeline 1. A second end piece 21 is fixedly sleeved outside the sealing sleeve 2. The second end piece 21 is in contact with the first end piece 111. A third end piece 22 is fixedly sleeved outside the sealing sleeve 2. A bolt 3 is movably connected inside the second end piece 21 and the first end piece 111. A nut 4 is threadedly connected to the outside of the bolt 3. The nut 4 is in contact with the first end piece 111. A fixing plate 5 is fixedly sleeved on the outside of the bolt 3. An anti-rust spring 6 is arranged on the outside of the bolt 3. A support plate 7 is fixedly connected to the surface of the sealing sleeve 2.

[0024] As Figure 1 , Figure 2 , Figure 4 shown in the figure, four bolts 3 are arranged in a circular array on the second end piece 21. Through the arrangement of the bolts 3, the first end piece 111 and the second end piece 21 can be locked, and then the sealing sleeve 2 and the sulfuric acid pipeline 1 can be connected and sealed. One end of the anti-rust spring 6 is welded to the fixing plate 5, and the other end of the anti-rust spring 6 is welded to the nut 4. Through the arrangement of the anti-rust spring 6, the nut 4 can be tightened to avoid the problem of vibration loosening of the nut 4. Two support plates 7 are symmetrically distributed on the sealing sleeve 2. Through the arrangement of the support plates 7, the sealing sleeve 2 can be supported.

[0025] As Figure 1 , Figure 2 , Figure 3 , Figure 5 shown in the figure, two symmetrically distributed mounting parts 8 are arranged on the inner wall of the sealing sleeve 2. A cathode probe body 9 is arranged between the two mounting parts 8. Two symmetrically distributed sealing pieces 10 are slidably connected to the inner wall of the sealing sleeve 2. The two sealing pieces 10 are in contact with each other. Each sealing piece 10 is in contact with the cathode probe body 9. A hard piece 11 is fixedly connected to the surface of each sealing piece 10. The hard piece 11 is slidably connected to the sealing sleeve 2. An elastic piece 12 is bonded to the end face of the hard piece 11 away from the sealing piece 10. The other end of the elastic piece 12 is welded to the sealing sleeve 2. Through the deformation of the elastic piece 12, the sealing piece 10 can be pushed to always be tightened and sealed with the cathode probe body 9 to ensure the sealing effect of the sealing piece 10.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the whole of the rigid sheet 11 is arc-shaped. The rigid sheet 11 is made of rigid PVC material. Through the setting of the rigid sheet 11, the sealing sheet 10 can be installed and used. A chute 13 is opened inside the sealing sleeve 2, and a slider 14 is slidably connected to the inner wall of the chute 13. The slider 14 is fixedly connected to the rigid sheet 11. Through the settings of the chute 13 and the slider 14, the rigid sheet 11 can be guided.

[0027] The specific implementation process of the present utility model is as follows: By pushing the first end 111 to contact the second end 21, and then pushing the bolt 3 through the first end 111 and the second end 21, under the threaded connection relationship, the nut 4 can be installed, so that the nut 4 contacts the second end 21. Then, the anti-rust spring 6 is pushed to be sleeved outside the bolt 3, and the anti-rust spring 6 and the nut 4 are welded and fixed. Then, the fixing plate 5 is welded and fixed, and the other end of the anti-rust spring 6 is welded to the fixing plate 5, so that the anti-rust spring 6 presses the nut 4 tightly to ensure the locking effect of the bolt 3 and the nut 4, and the sulfuric acid pipeline 1 and the sealing sleeve 2 are hermetically connected.

[0028] By pushing the cathode probe body 9 to insert into the sealing sleeve 2, under the action of the mounting member 8 (arc-shaped screw plate), the cathode probe body 9 can be fixed. During this process, the arc head of the cathode probe body 9 presses the sealing sheet 10 to push the sealing sheet 10 to move, and then pushes the rigid sheet 11 to move. The elastic sheet 12 deforms. When the rigid sheet 11 moves, it can drive the slider 14 to slide along the inner wall of the chute 13 to ensure the stable movement of the rigid sheet 11 and the sealing sheet 10. Under the action of the elastic sheet 12, the sealing sheet 10 can be pushed to always contact the cathode probe body 9 to ensure the sealing effect of the sealing sheet 10.

[0029] In this solution, through the settings of the bolt 3 and the nut 4, the first end 111 and the second end 21 can be locked to ensure the connection sealing and stability between the sealing sleeve 2 and the sulfuric acid pipeline 1. Under the action of the fixing plate 5 and the anti-rust spring 6, the nut 4 can be tightly pressed and limited to avoid the problem of loosening due to vibration of the bolt 3 and the nut 4, so as to ensure the long-term stability of the sealing sleeve 2 and the sulfuric acid pipeline 1. Through the setting of the sealing sheet 10, the cathode probe body 9 can be sealed and protected. Under the action of the elastic sheet 12, the sealing sheet 10 can be pushed to always contact the cathode probe body 9 to ensure the sealing effect of the sealing sheet 10, and avoid the problem that the sealing ring is deformed and the extrusion pressure is weak after being used for a long time in the prior art when only using the sealing ring for sealing treatment.

[0030] It should be noted in advance that in the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "attachment", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A sealing structure of a cathode probe, comprising a sulfuric acid pipeline, characterized in that: The outer side of the sulfuric acid pipeline is fixedly sleeved with terminal one, the upper end of the sulfuric acid pipeline is in contact with a sealing sleeve, the outer side of the sealing sleeve is fixedly sleeved with terminal two, the terminal two is in contact with terminal one, the outer side of the sealing sleeve is fixedly sleeved with terminal three, the insides of terminal two and terminal one are movably connected with bolts, the outer sides of the bolts are threadedly connected with nuts, the nuts are in contact with terminal one, the outer side of the bolts is fixedly sleeved with a fixing disk, the outer side of the bolts is provided with an anti-rust spring, and the surface of the sealing sleeve is fixedly connected with a support plate.

2. The sealing structure of the cathode probe according to claim 1, characterized in that: There are four bolts, which are arranged in a circular array on the second end.

3. The sealing structure of the cathode probe according to claim 1, characterized in that: One end of the rust-proof spring is welded to the fixing plate, and the other end of the rust-proof spring is welded to the nut.

4. The sealing structure of the cathode probe according to claim 1, characterized in that: Two support plates are provided, and the two support plates are symmetrically distributed on the sealing sleeve.

5. The sealing structure of the cathode probe according to claim 1, characterized in that: The inner wall of the sealing sleeve is provided with two symmetrically distributed mounting parts, a cathode probe body is commonly provided between the two mounting parts, the inner wall of the sealing sleeve is slidably connected with two symmetrically distributed sealing sheets, the two sealing sheets are in contact with each other, each of the sealing sheets is in contact with the cathode probe body, a hard sheet is fixedly connected to the surface of each of the sealing sheets, the hard sheet is slidably connected to the sealing sleeve, an elastic sheet is bonded to the end face of the hard sheet away from the sealing sheet, and the other end of the elastic sheet is welded to the sealing sleeve.

6. The sealing structure of the cathode probe according to claim 5, characterized in that: The hard sheet is in an arc shape as a whole and is made of hard PVC material.

7. The sealing structure of the cathode probe according to claim 5, characterized in that: A slide groove is provided inside the sealing sleeve, and a slider is slidably connected to the inner wall of the slide groove, and the slider is fixedly connected to the hard sheet.

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