Water pipe rust removal equipment for water conservancy project

Abstract

The invention provides water pipe rust removal equipment for a water conservancy project, and belongs to the technical field of water pipe rust removal equipment. Comprising a fixed frame, a multi-stage telescopic rod is fixedly connected to the fixed frame, a mounting seat is assembled at the tail end of the telescopic rod of the multi-stage telescopic rod, fixed seats are symmetrically mounted on the two sides of the mounting seat, a supporting frame and a connecting seat are symmetrically connected to the top and the bottom of the mounting seat, and movable seats are arranged in the fixed seats in a sleeved mode; the tail end of the movable seat extends to the outer portion of the fixed seat and is provided with a grinding tool base, and a grinding head is arranged in the grinding tool base in a sleeved mode. According to the water pipe rust removal equipment for the water conservancy project, by arranging the sand blasting assembly, the grinding tool base and the grinding head, sand blasting rust removal and grinding rust removal are combined through the water pipe rust removal equipment for the water conservancy project, primary rust removal is conducted on the inner wall of a pipeline through grinding of the grinding head, and secondary rust removal is conducted through the sand blasting assembly; therefore, the quality and the efficiency of the equipment during pipeline inner wall rust removal operation are both considered.

Description

Technical Field

[0001] The invention relates to the technical field of water pipe rust removal equipment, in particular to a water pipe rust removal equipment used in water conservancy projects. Background Art

[0002] Water conservancy projects refer to the general term for various engineering facilities and measures built to control, utilize and protect water resources in order to meet the needs of human social life, production and ecological environment. The water pipes in water conservancy projects mainly undertake the important task of transporting and distributing water resources. They can transport water from water sources to places where water is needed, distribute water resources, and regulate the amount of water to meet water needs in different time periods and regions. They are an indispensable part of the modern water conservancy system.

[0003] Before the water pipes of a water conservancy project are put into use, it is necessary to remove rust from the inner and outer surfaces of the pipes. After the rust is removed from the pipe surface, the construction of the anti-corrosion coating or lining can be carried out more effectively to ensure a good combination of the anti-corrosion layer and the pipe surface and to improve the anti-corrosion effect. In the prior art, the rust removal work on the outside of the pipe is generally carried out by grinding and rust removal using a special external cylindrical polishing machine, but this equipment cannot remove rust from the inner wall of the pipe. The rust removal of the inner wall often requires the staff to manually remove rust by sandblasting, or to remove rust from the inner wall of the pipe by a separate pipe inner wall grinding device. However, the efficiency of rust removal on the inner wall of the pipe relying solely on sandblasting is low, and the grinding device for the inner wall of the pipe is prone to different grinding and rust removal effects on various parts due to the wear of the grinding tool during operation, resulting in poor rust removal effect. Therefore, the present application provides a water pipe rust removal device for water conservancy projects to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a water pipe rust removal device for water conservancy projects to solve the problem that it is difficult to balance the rust removal effect and rust removal efficiency in the process of rust removal on the inner wall of the pipeline by the existing rust removal equipment.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A water pipe rust removal device for water conservancy projects comprises a fixed frame, a multi-stage telescopic rod is fixedly connected to the fixed frame, the telescopic rod ends of the multi-stage telescopic rod are equipped with a mounting seat, fixed seats are symmetrically installed on both sides of the mounting seat, and the top and bottom of the mounting seat are symmetrically connected to a support frame and a connecting seat, a movable seat is sleeved in the fixed seat, the end of the movable seat extends to the outside of the fixed seat and is equipped with a mold base, and a grinding head is sleeved in the mold base; a sandblasting component is used to assist the grinding head in sandblasting and rust removal on the inner wall of the pipeline, and the sandblasting component is connected to the mounting seat; a compensation component is used to compensate for the wear of the grinding head and maintain the fitting state of the grinding head and the inner wall of the pipeline, and the compensation component is connected to the movable seat; a transmission adjustment component is used to adjust the relative position between the fixed seat and the movable seat to adapt to pipelines of different sizes, and the transmission adjustment component is connected to the mounting seat.

[0007] Optionally, evenly distributed connection holes are opened on the outside of the fixing frame, and evenly distributed reinforcing ribs are fixedly connected in the fixing frame, and the telescopic rods of the multi-stage telescopic rod are fixedly connected to the connecting seat at the bottom of the mounting seat.

[0008] Optionally, the sandblasting assembly includes a transmission cabin fixedly mounted on the outside of the mounting base, and two groups of connecting pipes are fixedly connected to the outside of the transmission cabin, one of the connecting pipes is connected to the sandblasting equipment, and the end of the other connecting pipe is fixedly connected to a sandblasting head.

[0009] Optionally, the sandblasting head is fixedly mounted on the end of the support frame, the length of the support frame is smaller than the length of the fixing seat, and the connecting pipe sleeve connected to the sandblasting head is arranged outside the support frame.

[0010] Optionally, the transmission adjustment assembly includes a rotating shaft and a bidirectional threaded rod which are movably mounted in the transmission cabin and the fixed seat through bearings respectively, the outside of the bidirectional threaded rod is provided with two groups of threads in opposite directions, and the bidirectional threaded rod is threadedly connected to the fixed seat, the outside of the movable seat is fixedly connected with a second limit plate, and the fixed seat is provided with a movable cavity which is adapted to the shape of the second limit plate.

[0011] Optionally, the outside of the bidirectional threaded rod is fixedly connected to a second bevel gear, one end of the rotating shaft extending to the mounting seat is fixedly connected to a first bevel gear that matches the shape of the second bevel gear, and one end of the rotating shaft extending to the outside of the transmission cabin is fixedly connected to an adjustment knob, and the outside of the rotating shaft is sleeved with an impeller located in the transmission cabin.

[0012] Optionally, one end of the bidirectional threaded rod extending into the movable seat is movably connected to a first limit plate through a bearing, and guide rods symmetrically distributed on both sides of the bidirectional threaded rod are fixedly connected between the first limit plate and the inner wall of the fixed seat, and a cavity matching the shape of the first limit plate is opened in the movable seat.

[0013] Optionally, the compensation component includes an elastic sheet fixedly connected between the movable seat and the mold base, the elastic sheet is wavy in shape, one movable seat and one mold base are connected via two elastic sheets, two elastic sheets form a group, and the elastic sheets in the same group are symmetrically distributed.

[0014] Optionally, an offset zone is provided at one end of the spring sheet close to the movable seat, a clamping plate is fixedly connected to the outside of the offset zone, a clamping slot matching the shape of the clamping plate is provided on the outside of the movable seat, and the thickness values ​​of the bending part and the offset zone on the spring sheet are both smaller than the thickness value of the spring sheet.

[0015] Optionally, a clamping seat is provided at the bottom end of the grinding head, and a symmetrically distributed first side and a second side are fixedly connected to the outer side of the grinding tool base, a clamping joint matching the shape of the clamping seat is provided at the top end of the first side, and a weakening groove is opened on the outside of the first side.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting a sandblasting component, a grinding tool base and a grinding head, the water pipe rust removal equipment used in water conservancy projects combines sandblasting rust removal with grinding rust removal. The grinding head is used to grind the inner wall of the pipe for primary rust removal, and the sandblasting component is used for secondary rust removal, so as to take into account the quality and efficiency of the equipment when performing rust removal operations on the inner wall of the pipe.

[0018] By providing the second side and the first side on the mold base and the clamping seat on the grinding head, the grinding head and the mold base are connected and fixed by the clamping between the first side and the clamping seat, so that the disassembly and replacement of the grinding head after wear is simple and convenient, and the mold base and the grinding head are stable and reliable after assembly and connection. When the grinding head is subjected to the friction force of the inner wall of the pipe, the second side on the mold base can provide sufficient reaction force to ensure the stability of the grinding head when grinding the inner wall of the pipe.

[0019] By setting up the compensation component, when the grinding head is worn during operation, the spring piece can squeeze the grinding head in time through its own elastic force to maintain the fitting contact effect between the grinding head and the inner wall of the pipe. Secondly, the compensation component can also facilitate the staff to understand whether the grinding head and the inner wall of the pipe are in place. When they are in place, the card plate on the spring piece will be embedded in the card slot on the movable seat. In addition to assisting positioning, it can also further enhance the connection strength between the mold base and the movable seat, further providing a stable working environment for the grinding head.

[0020] By setting up a transmission adjustment component, the relative position between the movable seat and the fixed seat can be adjusted by turning the adjustment knob. After turning the adjustment knob, the first bevel gear is driven to rotate through the rotating shaft, and then the movable seat is driven to move in the fixed seat through the meshing transmission of the first bevel gear and the second bevel gear, thereby changing the distance between the grinding heads, so that the position of the grinding head in the equipment can adapt to pipes of different diameters, thereby improving the adaptation range of the equipment.

[0021] By setting the rotating shaft and impeller in the transmission adjustment component, the rust removal sand will continuously impact the impeller during the operation of the sandblasting component. When the grinding head is worn and displaced under the action of the compensation component, the structure in the transmission adjustment component will become loose to a certain extent, and the impeller will be able to deflect under the action of the impact force of the rust removal sand, thereby driving the transmission adjustment component to work, driving the movable seat to displace, filling the displacement of the compensation component, and restoring the compensation component to a compressed state, so that the structures of the compensation component and the transmission adjustment component are matched and complement each other in function, making the entire technical solution more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a three-dimensional structural diagram of the water pipe rust removal equipment used in water conservancy projects in working state;

[0024] Figure 2 It is a three-dimensional structural diagram of water pipe rust removal equipment used in water conservancy projects;

[0025] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the mounting seat and the transmission cabin;

[0026] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0027] Figure 5 It is a partial cross-sectional structural diagram of the fixed seat and the movable seat;

[0028] Figure 6 It is a schematic diagram of the matching structure of the mold base and the movable seat;

[0029] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0030] Figure 8 It is a schematic diagram of the internal structure of the movable seat;

[0031] Fig. 9 It is a schematic diagram of the matching structure of the card plate and the card slot;

[0032] Fig.10 This is a schematic diagram of the three-dimensional structure of the grinding head;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the mold base;

[0034] Fig.12 for Fig.11 Enlarged structural diagram at point C in the middle.

[0035] Reference numerals:

[0036] 1. Fixed frame; 2. Multi-stage telescopic rod; 3. Mounting seat; 4. Fixed seat; 5. Support frame; 6. Grinding tool base; 7. Grinding head; 8. Connecting pipe; 9. Transmission cabin; 10. Sandblasting head; 11. Shrapnel; 12. Rotating shaft; 13. Connecting seat; 14. Impeller; 15. First bevel gear; 16. Second bevel gear; 17. Bidirectional threaded rod; 18. Guide rod; 19. Movable seat; 20. Offset area; 21. Card plate; 22. Card slot; 23. First limit plate; 24. Card seat; 25. First side; 26. Second side; 27. Card joint; 28. Weakened groove; 29. ​​Second limit plate; 30. Movable cavity; 31. Adjustment knob.

[0037] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0038] The following is a detailed description of a water pipe rust removal device for water conservancy projects provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0039] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0040] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0041] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0042] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0043] like Figures 1 to 12As shown, an embodiment of the present invention provides a water pipe rust removal device for water conservancy projects, including a fixing frame 1, a multi-stage telescopic rod 2 is fixedly connected to the fixing frame 1, and a mounting seat 3 is assembled at the end of the telescopic rod of the multi-stage telescopic rod 2. The outside of the fixing frame 1 is provided with evenly distributed connection holes, and the fixing frame 1 is fixedly connected with evenly distributed reinforcing ribs. The telescopic rod of the multi-stage telescopic rod 2 is fixedly connected to a connecting seat 13 at the bottom of the mounting seat 3. The fixing frame 1 is used for the installation and fixation of the entire equipment to provide a stable working environment for the equipment. The external rust removal of the pipeline is carried out by an existing external cylindrical polishing machine, and the round pipe placed in the machine can be quickly rotated to achieve grinding and rust removal of the outer circle of the pipeline. The fixing frame 1 is fixedly installed on one side of the external cylindrical polishing machine through the fixing hole, so that the equipment and the external rust removal performed by the external cylindrical polishing machine are connected. The inner wall position of the rusted pipe corresponds to that of the mounting seat 3. The fixed seats 4 are symmetrically installed on both sides of the mounting seat 3, and the top and bottom of the mounting seat 3 are symmetrically connected with the support frame 5 and the connecting seat 13. A movable seat 19 is sleeved in the fixed seat 4. The end of the movable seat 19 extends to the outside of the fixed seat 4 and is equipped with a mold base 6. The multi-stage telescopic rod 2 can drive the entire equipment to move when working, and change the position of the equipment in the external cylindrical polishing machine to adapt to pipes of different lengths. The principle and use method of the above-mentioned external cylindrical polishing machine and the multi-stage telescopic rod 2 are the same as those in the prior art, and will not be described in detail here. With the rotation and movement of the pipe under the action of the external cylindrical polishing machine, it can be ensured that the equipment can pass completely through the inner wall of the pipe while the external cylindrical rust is being removed, and complete the all-round rust removal operation on the inner wall of the pipe.

[0044] A grinding head 7 is sleeved in the mold base 6, and a clamping seat 24 is provided at the bottom end of the grinding head 7. The outer side of the mold base 6 is fixedly connected with a first side edge 25 and a second side edge 26 that are symmetrically distributed. A clamping joint 27 that is adapted to the shape of the clamping seat 24 is provided at the top of the first side edge 25, and a weakened groove 28 is provided on the outside of the first side edge 25. The mold base 6 is used for installing and fixing the grinding head 7. When the grinding head 7 is sleeved in the mold base 6, the clamping seat 24 and the clamping joint 27 are clamped with each other, and the second side edge 26 is pressed against both sides of the grinding head 7 to form an auxiliary limit for the grinding head 7. The outside of the second side edge 26 is provided with uniformly distributed reinforcing ribs to maintain the stability of the assembly and fixation between the mold base 6 and the grinding head 7. When friction occurs between the grinding head 7 and the inner wall of the pipe, the mold base 6 can provide a good fixing effect for the grinding head 7 through the second side edge 26. The second side edges 26 are separated from each other, and at the same time, the weakened groove 28 on the first side edge 25 makes the first side edge 25 thinner and weaker at the weakened groove 28, making it easier to deform after being subjected to external force. When the grinding head 7 is worn to a certain extent after multiple operations, it needs to be disassembled and replaced. At this time, the first side edge 25 can be moved to make the first side edge 25 bend and deform at the weakened groove 28, and drive the clamping joint 27 to deflect and release the clamping lock on the clamping seat 24, thereby releasing the connection and fixing state between the mold base 6 and the grinding head 7. After that, a new grinding head 7 is replaced, and the clamping seat 24 is inserted between the first side edge 25 and the second side edge 26 again. The first side edge 25 is reset under the action of its own elastic force, and the clamping seat 24 is clamped again, so that the mold base 6 and the grinding head 7 are connected and fixed, so that the grinding head 7 on the mold base 6 can be easily disassembled and replaced after wear.

[0045] The sandblasting assembly is used to assist the grinding head 7 in sandblasting and rust removal on the inner wall of the pipe. The sandblasting assembly is connected to the mounting seat 3. The setting of the sandblasting assembly enables the equipment to perform secondary rust removal by the sandblasting assembly in addition to grinding and rust removal on the inner wall of the pipe through the grinding head 7, so as to ensure the rust removal quality of the inner wall of the pipe; the compensation assembly is used to compensate for the wear of the grinding head 7 and keep the grinding head 7 in contact with the inner wall of the pipe. The compensation assembly is connected to the movable seat 19. When the grinding head 7 is worn, the compensation assembly can squeeze and limit the grinding head 7 in time to ensure that the grinding head 7 is always in contact with the inner wall of the pipe. The inner wall of the pipe is in a fitted state, thereby ensuring the grinding and rust removal effect of the grinding head 7 on the inner wall of the pipe; the transmission adjustment component is used to adjust the relative position between the fixed seat 4 and the movable seat 19 to adapt to pipes of different sizes. The transmission adjustment component is connected to the mounting seat 3. The setting of the transmission adjustment component enables the size of the equipment to be adjusted on the one hand, so as to adapt to pipes of smaller diameters and improve the adaptation range of the equipment. On the other hand, it can utilize the kinetic energy of the sandblasting component when it is working, and adjust the position of the relevant structure in time after the compensation component works, and cooperate with the compensation component to work, so as to further ensure the effect of grinding and rust removal.

[0046] In this embodiment, if Figures 1 to 5 As shown, the sandblasting assembly includes a transmission cabin 9 fixedly mounted on the outside of the mounting seat 3, and two groups of connecting pipes 8 are fixedly connected to the outside of the transmission cabin 9, wherein one connecting pipe 8 is connected to the sandblasting equipment, and the end of the other connecting pipe 8 is fixedly connected to a sandblasting head 10, and the sandblasting head 10 is fixedly mounted on the end of a support frame 5, and the length value of the support frame 5 is less than the length value of the fixing seat 4. The length value relationship between the support frame 5 and the fixing seat 4 can ensure that there is always a certain gap between the sandblasting head 10 and the inner wall of the pipe, so as to avoid direct contact between the sandblasting head 10 and the inner wall of the pipe and cause wear. The connecting pipe 8 connected to the sandblasting head 10 is sleeved on the outside of the supporting frame 5. When the sandblasting equipment is working, the rust-removing sand can be input into the transmission cabin 9 through the connecting pipe 8, and then discharged from another connecting pipe 8 after passing through the transmission cabin 9, and finally sprayed out through the sandblasting head 10 to act on the inner wall of the pipeline. While the pipeline is displaced and rotated and rust-removed under the action of the external cylindrical polishing machine, the rust-removing sand sprayed by the sandblasting head 10 can also act on the inner wall of the pipeline during the grinding process of the grinding head 7, thereby making up for the places where the grinding head 7 is not in place for grinding and rust removal, so as to ensure that the equipment can take into account both the rust removal effect and the rust removal efficiency.

[0047] In this embodiment, if Figures 5 to 9As shown, the compensation component includes an elastic sheet 11 fixedly connected between the movable seat 19 and the mold base 6, the elastic sheet 11 is wavy, and one movable seat 19 is connected to one mold base 6 by two elastic sheets 11. The two elastic sheets 11 form a group, and the elastic sheets 11 in the same group are symmetrically distributed. The wavy sheet structure of the elastic sheet 11 enables the elastic sheet 11 to have a certain elasticity in addition to being able to connect and support the mold base 6, so that after the grinding head 7 is in the pipeline, the elastic sheet 11 can be in a compressed state, so that the grinding head 7 on the mold base 6 can fit tightly with the inner wall of the pipeline, and after the grinding head 7 is worn during work, the grinding head 7 is squeezed in time by its own elastic force to maintain the fitting state of the grinding head 7 with the inner wall of the pipeline. An end of the elastic sheet 11 close to the movable seat 19 is provided with an offset area 20, and the outside of the offset area 20 is fixedly connected with a clamping plate 21. A card slot 22 adapted to the shape of the card plate 21 is opened on the outside. The thickness values ​​of the bending parts and the offset area 20 on the spring piece 11 are both smaller than the thickness values ​​of the spring piece 11. The thinning treatment at the bending parts and the offset area 20 of the spring piece 11 makes the strength of the spring piece 11 in these areas weaker, and it is more likely to deform after being subjected to external force, thereby guiding the deformation state of the spring piece 11 in the compressed state. When the spring piece 11 is compressed and deformed, the card plate 21 outside the offset area 20 can deflect along with the deformation of the spring piece 11 and approach the outside of the movable seat 19 until the card plate 21 is embedded in the card slot 22. On the one hand, the compensation component can be positioned to facilitate the staff to understand whether the grinding head 7 is tightly fitted with the inner wall of the pipe. On the other hand, the connection points between the spring piece 11 and the movable seat 19 can be increased, and the connection state between the movable seat 19 and the mold base 6 can be strengthened.

[0048] In this embodiment, if Figures 3 to 9As shown, the transmission adjustment component includes a rotating shaft 12 and a bidirectional threaded rod 17 which are movably mounted in the transmission cabin 9 and the fixed seat 4 respectively through bearings. The outside of the bidirectional threaded rod 17 is provided with two sets of threads in opposite directions, and the bidirectional threaded rod 17 is threadedly connected to the fixed seat 4. The outside of the movable seat 19 is fixedly connected with a second limit plate 29, and the fixed seat 4 is provided with an active cavity 30 adapted to the shape of the second limit plate 29. The rotating shaft 12 and the transmission cabin 9 are movably connected through bearings, and the fixed seat 4 and the bidirectional threaded rod 17 are movably connected through bearings. The setting of the bearings enables the rotating shaft 12 and the bidirectional threaded rod 17 to rotate. When the bidirectional threaded rod 17 rotates, it can push the movable seat 19 to move in the active cavity 30 through its external threads, thereby changing the relative position between the movable seat 19 and the fixed seat 4. After the position of the movable seat 19 is changed, the positions of the mold base 6 and the grinding head 7 outside it are also changed accordingly, thereby finally realizing the adjustment of the spacing between the two grinding heads 7 to adapt to pipes of different diameters. The outside of the bidirectional threaded rod 17 is fixedly connected to the second bevel gear 16, and one end of the rotating shaft 12 extending to the mounting seat 3 is fixedly connected to the first bevel gear 15 which is adapted to the shape of the second bevel gear 16, and the one end of the rotating shaft 12 extending to the outside of the transmission cabin 9 is fixedly connected to the adjusting knob 31, and the outside of the rotating shaft 12 is provided with an impeller 14 located in the transmission cabin 9. Turning the adjusting knob 31 can drive the rotating shaft 12 to rotate, and then the bidirectional threaded rod 17 is driven to rotate through the meshing transmission between the first bevel gear 15 and the second bevel gear 16, thereby realizing the adjustment of the relative position of the fixed seat 4 and the movable seat 19, so that the staff can quickly adjust the size of the equipment and adapt it to the pipe to be derusted.

[0049] During the operation of the sandblasting assembly, the rust-removing sand passes through the transmission cabin 9 and continuously impacts the impeller 14, generating thrust. The impeller 14 is provided with evenly distributed through openings. When the grinding head 7 is already in contact with the inner wall of the pipe, the bidirectional threaded rod 17 cannot rotate. At this time, the rotating shaft 12 and the impeller 14 cannot rotate either. At this time, the rust-removing sand passes through the through opening on the impeller 14 and is transported. If the grinding head 7 is worn and no longer in contact with the inner wall of the pipe, the impeller 14 can be deflected to a certain extent under the action of the thrust of the rust-removing sand, thereby indirectly driving the bidirectional threaded rod 17 to rotate, adjusting the position of the movable seat 19, and maintaining the state of the compensation assembly through the displacement of the movable seat 19, thereby ensuring the contact between the grinding head 7 and the inner wall of the pipe. One end of the bidirectional threaded rod 17 extending to the movable seat 19 is movably connected to a first limit plate 23 through a bearing. The first limit plate 23 and the inner wall of the fixed seat 4 are fixedly connected with guide rods 18 symmetrically distributed on both sides of the bidirectional threaded rod 17. A cavity matching the shape of the first limit plate 23 is provided in the movable seat 19. During the movement of the movable seat 19 in the fixed seat 4, the guide rod 18 and the movable seat 19 slide against each other, thereby realizing the limit guiding of the movable seat 19 during the displacement process, ensuring the stability of the movable seat 19 during the displacement process. The first limit plate 23 in the movable seat 19 and the second limit plate 29 outside the movable seat 19 are both used for the movable seat 19. Limiting, limiting the range of movement of the movable seat 19. When the movable seat 19 extends from the fixed seat 4 to the maximum value, the second limiting plate 29 contacts the end of the inner wall of the fixed seat 4, and the first limiting plate 23 contacts and fits with one end of the inner wall of the movable seat 19 close to the second limiting plate 29, to prevent the movable seat 19 from separating from the fixed seat 4 during the adjustment process. The first limiting plate 23 is also used to assist in the fixation of the bidirectional threaded rod 17. The bearing connection between the first limiting plate 23 and the bidirectional threaded rod 17 can retain the rotational and movable connection capability of the bidirectional threaded rod 17 while preventing the end of the bidirectional threaded rod 17 from being suspended in the air, providing support for the end of the bidirectional threaded rod 17, and ensuring the stability of the working position of the bidirectional threaded rod 17.

[0050] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A water pipe rust removal device for water conservancy projects, characterized in that: It comprises a fixed frame, a multi-stage telescopic rod is fixedly connected to the fixed frame, a mounting seat is assembled at the end of the telescopic rod of the multi-stage telescopic rod, fixed seats are symmetrically mounted on both sides of the mounting seat, and a support frame and a connecting seat are symmetrically connected to the top and bottom of the mounting seat, a movable seat is sleeved in the fixed seat, the end of the movable seat extends to the outside of the fixed seat and is assembled with a mold base, and a grinding head is sleeved in the mold base; A sandblasting assembly, used to assist the grinding head in sandblasting and removing rust from the inner wall of the pipeline, the sandblasting assembly being connected to the mounting seat; A compensation component, used for compensating the wear of the grinding head and maintaining the fit between the grinding head and the inner wall of the pipe, the compensation component is connected to the movable seat; The transmission adjustment component is used to adjust the relative position between the fixed seat and the movable seat to adapt to pipes of different sizes. The transmission adjustment component is connected to the mounting seat.

2. The water pipe rust removal equipment for water conservancy projects according to claim 1 is characterized in that: The outside of the fixing frame is provided with evenly distributed connection holes, and evenly distributed reinforcing ribs are fixedly connected in the fixing frame, and the telescopic rods of the multi-stage telescopic rods are fixedly connected to the connection seat at the bottom of the mounting seat.

3. The water pipe rust removal equipment for water conservancy projects according to claim 1 is characterized in that: The sandblasting assembly includes a transmission cabin fixedly mounted on the outside of the mounting seat, and two groups of connecting pipes are fixedly connected to the outside of the transmission cabin, one of the connecting pipes is connected to the sandblasting equipment, and the end of the other connecting pipe is fixedly connected to a sandblasting head.

4. The water pipe rust removal equipment for water conservancy projects according to claim 3 is characterized in that: The sandblasting head is fixedly mounted on the end of the support frame, the length of the support frame is smaller than the length of the fixing seat, and the connecting pipe sleeve connected to the sandblasting head is arranged outside the support frame.

5. The water pipe rust removal equipment for water conservancy projects according to claim 4 is characterized in that: The transmission adjustment assembly includes a rotating shaft and a bidirectional threaded rod which are movably mounted in the transmission cabin and the fixed seat through bearings, the outside of the bidirectional threaded rod is provided with two sets of threads in opposite directions, and the bidirectional threaded rod is threadedly connected to the fixed seat, the outside of the movable seat is fixedly connected with a second limit plate, and the fixed seat is provided with a movable cavity which is adapted to the shape of the second limit plate.

6. The water pipe rust removal equipment for water conservancy projects according to claim 5, characterized in that: The outside of the bidirectional threaded rod is fixedly connected to a second bevel gear, one end of the rotating shaft extending to the mounting seat is fixedly connected to a first bevel gear that matches the shape of the second bevel gear, and one end of the rotating shaft extending to the outside of the transmission cabin is fixedly connected to an adjusting knob, and the outside of the rotating shaft is sleeved with an impeller located in the transmission cabin.

7. The water pipe rust removal equipment for water conservancy projects according to claim 6 is characterized in that: One end of the bidirectional threaded rod extending into the movable seat is movably connected to a first limit plate through a bearing, and guide rods symmetrically distributed on both sides of the bidirectional threaded rod are fixedly connected between the first limit plate and the inner wall of the fixed seat, and a cavity matching the shape of the first limit plate is opened in the movable seat.

8. The water pipe rust removal equipment for water conservancy projects according to claim 7, characterized in that: The compensation component includes an elastic sheet fixedly connected between the movable seat and the mold base, the elastic sheet is wavy in shape, one movable seat and one mold base are connected via two elastic sheets, the two elastic sheets form a group, and the elastic sheets in the same group are symmetrically distributed.

9. The water pipe rust removal equipment for water conservancy projects according to claim 8, characterized in that: An offset zone is provided at one end of the spring sheet close to the movable seat, a clamping plate is fixedly connected to the outside of the offset zone, a clamping groove matching the shape of the clamping plate is provided on the outside of the movable seat, and the thickness values ​​of the bending part and the offset zone on the spring sheet are both smaller than the thickness value of the spring sheet.

10. The water pipe rust removal equipment for water conservancy projects according to claim 1, characterized in that: A clamping seat is provided at the bottom end of the grinding head, and a first side and a second side are fixedly connected to the outer side of the grinding tool base with symmetrical distribution. A clamping joint matching the shape of the clamping seat is provided at the top end of the first side, and a weakening groove is opened on the outside of the first side.

Images