A cleaning device for commercial concrete delivery pipeline

Abstract

The invention relates to a cleaning device for commercial concrete conveying pipelines applied in the field of pipeline cleaning. The cleaning device comprises an upper friction ring and a lower friction ring located at the lower side of the upper friction ring. The upper friction ring, the lower friction ring, the axial bearing sleeve, the cleaning shovel and the bearing tensioning assembly are matched to effectively clean the residues on the inner wall of the pipeline body, which can not only effectively improve the cleaning efficiency and reduce the waste of water resources, but also effectively remove and clean the solidified materials on the inner wall of the pipeline body, improve the cleaning effect, and promote the durability of the pipeline body, thereby effectively promoting the safety in the subsequent application process of the pipeline body and reducing the potential threat to construction personnel. In addition, the bearing tensioning assembly regulates and maintains the removing angle of the cleaning shovel, which can be effectively applied to the cleaning work of pipeline bodies with different inner diameters, and can also effectively improve the strength of the cleaning shovel in cleaning the solidified materials on the inner wall, thereby improving the cleaning effect.

Description

Technical Field

[0001] The present invention relates to a cleaning device, in particular to a cleaning device for commercial concrete conveying pipelines applied in the field of pipeline cleaning. Background Art

[0002] Concrete delivery pipeline is one of the important equipment in the construction industry. It is usually used in combination with concrete pumps to realize the delivery of concrete through the pumping system. At the construction site, the concrete delivery pipeline can be flexibly arranged and moved, and is suitable for various complex engineering sites. However, during long-term use, the pipeline will be blocked due to concrete residues, debris, etc., resulting in blockage of the pipeline or failure to pump out concrete, and even causing irreversible damage to the equipment. Therefore, pipeline cleaning is an important step to ensure the normal operation of the equipment and extend its service life.

[0003] In current technical applications, the cleaning of concrete delivery pipelines usually takes the following steps: first, a large amount of water is injected into the pipeline through a concrete pump for forward flushing; then, a sponge ball is inserted at the pipeline outlet, and the reverse pumping function of the concrete pump is used to make the sponge ball move in the reverse direction along the pipeline, thereby achieving the effect of cleaning the inner wall of the pipeline.

[0004] However, this cleaning method has significant shortcomings. It is not only inefficient, but also results in a large waste of water resources. More importantly, due to the softness of the sponge ball material, it is difficult to completely remove the solidified blocks attached to the inner wall of the concrete delivery pipe, which greatly reduces the quality of the cleaning effect. Over time, these solidified substances that have not been removed will accumulate in the pipe, which may eventually cause pipe blockage, thereby damaging the concrete delivery equipment and posing a potential threat to the safety of construction workers. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to reduce the waste of water resources while promoting the cleaning effect of the solidified concrete on the inner wall of the concrete pipe, thereby preventing the pipe from being blocked, thereby protecting the equipment and ensuring construction safety.

[0006] In order to solve the above problems, the present invention provides a cleaning device for commercial concrete conveying pipelines, comprising an upper friction ring and a lower friction ring located at the lower side of the upper friction ring, an axial bearing sleeve is fixedly connected between the upper friction ring and the lower friction ring, and a bearing tensioning assembly is slidably arranged in the axial bearing sleeve;

[0007] The lower end of the axial bearing sleeve extends to the lower side of the lower friction ring and is fixedly connected with a plurality of hinge seats evenly distributed along the circumferential direction. A cleaning shovel is hinged at the lower end of the hinge seat, and the bearing tensioning assembly cooperates with the cleaning shovel.

[0008] The load-bearing tensioning assembly includes a load-bearing slider slidably arranged on the inner wall of the axial load-bearing sleeve, the lower end of the load-bearing slider is fixedly connected to a load-bearing transmission rod, the lower end of the load-bearing transmission rod is fixedly connected to a cone tensioning block, and the outer end of the cone tensioning block is fixedly connected to a plurality of expansion wedges corresponding to the positions of the cleaning shovel.

[0009] In the above-mentioned cleaning device for commercial concrete conveying pipelines, the upper friction ring, the lower friction ring, the axial bearing sleeve, the cleaning shovel and the bearing tensioning assembly cooperate to effectively clean the residues on the inner wall of the pipeline body, which can not only effectively improve the cleaning efficiency and reduce the waste of water resources, but also effectively remove and clean the solidified materials on the inner wall of the pipeline body, improve the cleaning effect and promote the durability of the pipeline body.

[0010] As a supplement to the present application, the lower end of the axial load-bearing sleeve is fixedly connected to a limiting cone hole ring that cooperates with the cone tensioning block, and the upper end of the limiting cone hole ring is fixedly connected to a return spring whose sliding sleeve is arranged on the outside of the load-bearing transmission rod. The upper end of the return spring is fixedly connected to the load-bearing sliding block, and the return spring maintains a constant extension state when not affected by external force.

[0011] As a supplement to the present application, a tension elastic sleeve is fixedly connected between two adjacent cleaning shovels, and a torsion spring is provided at the rotating part where the hinged seat and the cleaning shovel are hinged.

[0012] As a further improvement of the present application, a load-bearing cavity is provided in the axial load-bearing sleeve, and a plurality of frustum holes evenly distributed along the circumferential direction are provided at the upper and lower ends of the load-bearing cavity, and the frustum holes are arranged at intervals from the cleaning shovel, and the two frustum holes at corresponding positions at the upper and lower ends are close to each other on the side with a small diameter end, and a reciprocating impact assembly is arranged between the two frustum holes at corresponding positions at the upper and lower ends.

[0013] As a further improvement of the present application, the reciprocating impact assembly includes a frustum connecting rod slidably arranged in a plurality of positions corresponding to the frustum holes in the load-bearing cavity, the upper and lower ends of the frustum connecting rod extend to the outside of the corresponding frustum holes, and are fixedly connected with a frustum head, the frustum head cooperates with the frustum hole, and the side of the frustum head close to the axial load-bearing sleeve is a small diameter end, and the outer end of the frustum connecting rod is fixedly connected with a blocking arc block;

[0014] The upper end of the blocking arc block is fixedly connected to a pre-clearing spring that is slidably mounted on the outside of the frustum connecting rod, and the upper end of the pre-clearing spring is fixedly connected to the upper inner wall of the load-bearing cavity. The lower end of the blocking arc block is fixedly connected to a pre-sealing spring that is slidably mounted on the outside of the frustum connecting rod, and the lower end of the pre-sealing spring is fixedly connected to the lower inner wall of the load-bearing cavity.

[0015] As a further improvement to the present application, the length of the pre-pass spring is 2 to 3 times the length of the pre-sealed spring, the stiffness coefficient of the pre-pass spring is 4 to 6 times the stiffness coefficient of the pre-pass spring, the stiffness coefficient of the pre-sealed spring is equal to the stiffness coefficient of the axial bearing sleeve, and when not affected by external force, the axial bearing sleeve, the pre-pass spring and the pre-sealed spring all maintain a constant contraction state.

[0016] As a further improvement of the present application, the upper ends of the upper friction ring and the lower friction ring are fixedly connected with a plurality of drainage tubes evenly distributed along the circumferential direction, and the lower ends of the drainage tubes are fixedly connected with inclined arc tubes connected thereto.

[0017] As a further improvement supplement to the present application, the inclined arc tube connected to the drainage tube at the upper end of the upper friction ring is embedded in the upper friction ring, and the lower end of the inclined arc tube extends to the lower side of the upper friction ring; the inclined arc tube connected to the drainage tube at the upper end of the lower friction ring is embedded in the lower friction ring, and the lower end of the inclined arc tube extends to the lower side of the lower friction ring.

[0018] In summary, through the cooperation of the upper friction ring, the lower friction ring, the axial bearing sleeve, the cleaning shovel and the bearing tensioning assembly, when the concrete pump transports the cleaning water into the pipe body, the upper friction ring, the axial bearing sleeve and the bearing tensioning assembly are pushed to make them move in the pipe body, which can effectively realize the cleaning of the residues on the inner wall of the pipe body, not only can it effectively improve the cleaning efficiency and reduce the waste of water resources, but also can effectively remove and clean the solidified materials on the inner wall of the pipe body, improve the cleaning effect, and promote the durability of the pipe body, thereby effectively promoting the safety of the subsequent application of the pipe body and reducing the potential threat to construction personnel. In addition, the bearing tensioning assembly can also adjust and maintain the removing angle of the cleaning shovel under the action of water pressure, which can be effectively applied to the cleaning work of pipe bodies with different inner diameters, promote the applicability of the cleaning device, and effectively improve the cleaning strength of the cleaning shovel on the solidified materials on the inner wall, improve the cleaning effect, and improve the cleanliness of the inner wall of the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Axonometric drawings of the first and second embodiments of the present application;

[0020] Figure 2 It is an axonometric sectional exploded view of the first and second embodiments of the present application;

[0021] Figure 3 Axonometric diagrams of the drainage tube and the inclined arc tube of the first and second embodiments of the present application;

[0022] Figure 4 This is a front cross-sectional view of the first embodiment of the present application when not in operation;

[0023] Figure 5 This is a front cross-sectional view of the first embodiment of the present application during operation;

[0024] Figure 6 This is a left side cross-sectional view of the cleaning shovel of the second embodiment of the present application when it is in a retracted position;

[0025] Figure 7 This is a left side cross-sectional view of the cleaning shovel of the second embodiment of the present application when it is in the extended position;

[0026] Figure 8 This is an axonometric diagram of the first and second embodiments of the present application when installed in the pipeline body in the initial state;

[0027] Fig. 9 This is a front view of the first and second embodiments of the present application when installed in the pipeline body in the initial state;

[0028] Fig.10 This is an axonometric diagram of the first and second embodiments of the present application when installed in the pipeline body;

[0029] Fig.11 This is the main view of the first and second embodiments of the present application when installed in the pipeline body.

[0030] Description of the numbers in the figure:

[0031] 1 upper friction ring, 2 lower friction ring, 3 axial load-bearing sleeve, 31 load-bearing cavity, 32 frustum hole, 4 cleaning shovel, 41 tension elastic sleeve, 42 hinge seat, 5 load-bearing tensioning assembly, 51 load-bearing slider, 52 load-bearing transmission rod, 53 frustum tensioning block, 54 expansion wedge block, 55 limiting conical hole ring, 56 reset spring, 6 reciprocating impact assembly, 61 frustum head, 62 frustum connecting rod, 63 blocking arc block, 64 pre-pass spring, 65 pre-sealing spring, 7 drainage pipe, 71 inclined arc pipe, 8 pipeline body. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figure 1 - Figure 5 and Figure 8 - Fig.11 A cleaning device for commercial concrete delivery pipeline is shown, comprising an upper friction ring 1 and a lower friction ring 2 located at the lower side of the upper friction ring 1, an axial bearing sleeve 3 is fixedly connected between the upper friction ring 1 and the lower friction ring 2, the axial bearing sleeve 3 maintains elastic deformation in the vertical up and down directions, and a bearing tensioning component 5 is slidably arranged in the axial bearing sleeve 3;

[0035] The lower end of the axial bearing sleeve 3 extends to the lower side of the lower friction ring 2, and is fixedly connected with a plurality of hinge seats 42 evenly distributed along the circumferential direction, the lower end of the hinge seat 42 is hinged with a cleaning shovel 4, and the bearing tensioning assembly 5 cooperates with the cleaning shovel 4;

[0036] The load-bearing tensioning component 5 includes a load-bearing slider 51 slidably arranged on the inner wall of the axial load-bearing sleeve 3, the lower end of the load-bearing slider 51 is fixedly connected to a load-bearing transmission rod 52, the lower end of the load-bearing transmission rod 52 is fixedly connected to a cone tensioning block 53, and the outer end of the cone tensioning block 53 is fixedly connected to a plurality of expansion wedges 54 corresponding to the positions of the cleaning shovel 4. Through the cooperation of the upper friction ring 1, the lower friction ring 2, the axial load-bearing sleeve 3, the cleaning shovel 4 and the load-bearing tensioning component 5, when the concrete pump delivers the cleaning water into the pipeline body 8, the upper friction ring 1, the axial load-bearing sleeve 3 and the load-bearing tensioning component 5 are pushed to make them move in the pipeline body 8, which can effectively realize the cleaning of the residue on the inner wall of the pipeline body 8, and can not only It can effectively improve the cleaning efficiency, reduce the waste of water resources, and effectively remove and clean the solidified materials on the inner wall of the pipe body 8, improve the cleaning effect, and promote the durability of the pipe body 8, thereby effectively promoting the safety of the subsequent application of the pipe body 8 and reducing its potential threat to construction personnel. In addition, the load-bearing tensioning component 5 can also adjust and maintain the scraping angle of the cleaning shovel 4 under the action of water pressure. While being effectively applicable to the cleaning work of pipe bodies 8 with different inner diameters and promoting the applicability of the cleaning device, it can also effectively improve the strength of the cleaning shovel 4 in cleaning the solidified materials on the inner wall, improve the cleaning effect, and improve the cleanliness of the inner wall of the pipe body 8.

[0037] Figure 1 , Figure 2 and Figure 8 - Fig.11 It is shown that the lower end of the axial bearing sleeve 3 is fixedly connected with a limiting cone hole ring 55 that cooperates with the cone tensioning block 53, and the upper end of the limiting cone hole ring 55 is fixedly connected with a return spring 56 that is slidably sleeved and arranged on the outside of the bearing transmission rod 52. The upper end of the return spring 56 is fixedly connected to the bearing sliding block 51, and the return spring 56 maintains a constant extension state when not affected by external force. The setting of the limiting cone hole ring 55 and the return spring 56 can not only realize the angle control of the cleaning shovel 4, ensure the effectiveness of its contact with the inner wall of the pipeline body 8, and promote the speed and effect of the cleaning shovel 4 on the cleaning of the solidified material, but also can automatically reset after the cleaning is completed and the water pressure is lost, so as to release the abutment effect of the cleaning shovel 4 on the inner wall of the pipeline body 8, facilitate the installation and removal of the cleaning device, improve the cleaning efficiency, reduce the difficulty of the cleaning process, and promote the wide application of the cleaning device.

[0038] Figure 1 , Figure 2 and Figure 8 - Fig.11It is shown that a tension elastic sleeve 41 is fixedly connected between two adjacent cleaning shovels 4, and a torsion spring is arranged at the rotating part where the hinge seat 42 and the cleaning shovel 4 are hinged. The arrangement of the tension elastic sleeve 41 and the torsion spring can effectively promote the linkage between multiple cleaning shovels 4 and effectively perform a full coverage cleaning effect on the inner wall of the pipeline body 8. At the same time, when encountering stubborn solidified objects, it can reduce the direct damage of the cleaning shovel 4 through the elastic avoidance effect, ensure the smoothness of the cleaning process, and thereby achieve the safety of the cleaning process of the inner wall of the pipeline body 8.

[0039] Figure 1 - Figure 5 and Figure 8 - Fig.11 It is shown that a plurality of drainage tubes 7 evenly distributed along the circumferential direction are fixedly connected to the upper ends of the upper friction ring 1 and the lower friction ring 2, and an inclined arc tube 71 connected thereto is fixedly connected to the lower ends of the drainage tubes 7. Figure 1 - Figure 5 and Figure 8 - Fig.11 It is shown that the inclined arc tube 71 connected to the drainage tube 7 at the upper end of the upper friction ring 1 is embedded in the upper friction ring 1, and the lower end of the inclined arc tube 71 extends to the lower side of the upper friction ring 1, and the inclined arc tube 71 connected to the drainage tube 7 at the upper end of the lower friction ring 2 is embedded in the lower friction ring 2, and the lower end of the inclined arc tube 71 extends to the lower side of the lower friction ring 2. The arrangement of the drainage tube 7 and the inclined arc tube 71 can further increase the mobility of the cleaning shovel 4 in the process of removing the solidified material on the inner wall of the pipeline body 8. The upper friction ring 1, the lower friction ring 2 and the axial bearing sleeve 3 are used to drive the cleaning shovel 4 to rotate, which can not only effectively improve the cleaning range and integrity of the cleaning shovel 4 and improve the cleaning effect, but also improve the cleaning effect of the cleaning shovel 4 on the solidified material by increasing the effect of the rotational force, and can also realize the flushing effect of the removed solidified material under the action of the discharged water flow, reduce the resistance of its accumulation to the cleaning shovel 4, and effectively ensure the cleaning effect while saving water resources.

[0040] Figure 1 - Figure 5 and Figure 8 - Fig.11It is shown that after the concrete is delivered, the construction personnel open the connection position between the pipeline body 8 and the concrete pump, and after a simple cleaning of the inner wall of the upper end of the pipeline body 8, the cleaning device is placed in the pipeline body 8. The friction between the upper friction ring 1 and the lower friction ring 2 and the inner wall of the pipeline body 8 ensures the stability of its position in the pipeline body 8. When the inner diameter of the pipeline body 8 is larger than the outer diameters of the upper friction ring 1 and the lower friction ring 2, the adaptability of the cleaning device to the pipeline body 8 can be ensured by sleeve-fitting thickened rings of corresponding thickness on the outer ends of the upper friction ring 1 and the lower friction ring 2, thereby increasing the multi-specification and adaptability of the cleaning device, and then re- The pipeline body 8 is newly connected to the concrete pump, and then water is input into the concrete pump so that the concrete pump pumps water into the pipeline body 8, and the upper friction ring 1, the lower friction ring 2, the axial bearing sleeve 3 and the bearing slider 51 are subjected to hydraulic squeezing and pushing action. While the water flow is acting, the bearing slider 51 is pressed to move downward, compressing the reset spring 56, and then the cone tensioning block 53 is driven to move downward through the bearing transmission rod 52, and the cleaning shovel 4 is squeezed and tilted through the squeezing wedge block 54, so that the cleaning shovel 4 is rotated outward on the tension elastic sleeve 41, and the hinge seat 42 is opened, and the lower end of the cleaning shovel 4 abuts against the inner wall surface of the pipeline body 8;

[0041] The water flow will also enter the inclined arc tube 71 through the drainage pipe 7, and then be discharged through the inclined arc tube 71 to impact the inner wall of the pipeline body 8. Under the cooperation of the drainage pipe 7 and the inclined arc tube 71 located on the upper friction ring 1 and the lower friction ring 2, the axial bearing sleeve 3 and the cleaning shovel 4 will produce a rotation effect under the reaction of the upper friction ring 1, the lower friction ring 2 and the water flow impact.

[0042] The cleaning shovel 4 continuously rotates and moves downward under the action of the water flow, and removes and cleans the concrete and solidified materials remaining on the inner wall of the pipe body 8, effectively improving the cleaning effect of the inner wall of the pipe body 8, and the water flow flowing out through the lower friction ring 2 will flush the inner wall of the pipe body 8, flush some residual concrete, and can also flush and clean the concrete and solidified materials remaining on the cleaning shovel 4, effectively reducing the resistance of the cleaning shovel 4 to scrape, further promoting the cleaning effect, and improving the cleaning efficiency, thereby effectively realizing the rational use of water resources, improving the cleaning efficiency, and effectively ensuring the safety of subsequent pipe body 8 applications, reducing the potential threat it poses to construction personnel.

[0043] Second implementation method:

[0044] Figure 1 - Figure 3 and Figure 6 - Fig.11A cleaning device for commercial concrete conveying pipeline is shown as a further functional improvement of the first embodiment, which increases the multi-specification of the cleaning device, thereby realizing applications with different needs and promoting the market economic benefits of the cleaning device. A bearing cavity 31 is provided in the axial bearing sleeve 3, and a plurality of frustum holes 32 uniformly distributed along the circumferential direction are provided at the upper and lower ends of the bearing cavity 31, and the frustum holes 32 are arranged at intervals from the cleaning shovel 4. The two frustum holes 32 at the corresponding positions at the upper and lower ends are close to each other on one side with a small diameter end, and a reciprocating impact component 6 is arranged between the two frustum holes 32 at the corresponding positions at the upper and lower ends. The cooperation between the bearing cavity 31 and the frustum hole 32 can realize the passage function of the axial bearing sleeve 3, further promote the flushing effect of the cleaning shovel 4, improve the flushing effect, effectively flush the residual concrete, promote the cleaning efficiency of the cleaning shovel 4, and effectively avoid the residue of concrete and solidified materials on the cleaning shovel 4, ensure the effectiveness of the shoveling effect of the cleaning shovel 4, and fully improve the cleaning efficiency of the pipeline body 8.

[0045] Figure 6 and Figure 7 The reciprocating impact assembly 6 is shown to include a plurality of frustum connecting rods 62 slidably arranged in the bearing cavity 31 at positions corresponding to the frustum holes 32, and the length of the axial bearing sleeve 3 in a fully extended state is smaller than the length of the frustum connecting rod 62, and both upper and lower ends of the frustum connecting rod 62 extend to the outside of the corresponding frustum hole 32, and are fixedly connected to a frustum head 61, which is matched with the frustum hole 32, and the side of the frustum head 61 close to the axial bearing sleeve 3 is a small diameter end, and the outer end of the frustum connecting rod 62 is fixedly connected to a blocking arc block 63;

[0046] The upper end of the blocking arc block 63 is fixedly connected to a pre-clearing spring 64 that is slidably mounted on the outside of the cone connecting rod 62, and the upper end of the pre-clearing spring 64 is fixedly connected to the upper inner wall of the load-bearing cavity 31, and the lower end of the pre-clearing spring 65 is fixedly connected to the lower inner wall of the load-bearing cavity 31. Under the action of the pre-clearing spring 64, the pre-clearing spring 65 and the water pressure, the cone head 61 achieves the effect of sealing and contact blocking the cone hole 32, which can not only promote the pressure of the water flow of the flushing and cleaning shovel 4 to ensure the flushing effect, but also effectively realize the telescopic adjustment effect of the axial bearing sleeve 3, so that the axial bearing sleeve 3 drives the cleaning shovel 4 to produce the dynamic effect of alternating deformation of continuous extension and contraction, further promoting the cleaning shovel 4 to remove the solidified material, reduce the residue of stubborn solidified material, ensure the cleaning quality, and improve the safety of subsequent application of the pipeline body 8.

[0047] Figure 6 and Figure 7It is shown that the length of the pre-pass spring 64 is 2 to 3 times the length of the pre-sealing spring 65, and the stiffness coefficient of the pre-sealing spring 65 is 4 to 6 times the stiffness coefficient of the pre-pass spring 64. The stiffness coefficient of the pre-sealing spring 65 is equal to the stiffness coefficient of the axial bearing sleeve 3, and when not affected by external force, the axial bearing sleeve 3, the pre-pass spring 64 and the pre-sealing spring 65 all maintain a constant contraction state. The length and stiffness coefficient restrictions of the pre-pass spring 64 and the pre-sealing spring 65 can ensure that they cooperate with the water pressure to realize the expansion and contraction regulation effect on the axial bearing sleeve 3, promote the dynamic enhancement effect on the cleaning shovel 4, effectively ensure the cleaning effect, improve the effect and efficiency of water flushing, and promote the safety of its subsequent application by improving the cleanliness of the inner wall of the pipeline body 8, thereby reducing the potential threat it poses to construction personnel during the application process.

[0048] Figure 1 - Figure 3 and Figure 6 - Fig.11 It is shown that when the cleaning device is installed in the pipeline body 8, due to the elastic contraction of the pre-pass spring 64 and the pre-sealing spring 65, the axial bearing sleeve 3 will maintain a continuous contraction effect, shortening the distance between the cleaning shovel 4 and the upper friction ring 1. At the same time, since the stiffness coefficient of the pre-pass spring 65 is greater than the stiffness coefficient of the pre-pass spring 64, during the contraction process, the pre-sealing spring 65 drives the blocking arc block 63 to squeeze the pre-pass spring 64, thereby keeping the frustum connecting rod 62 upward, effectively extending the upper end of the frustum connecting rod 62 to the outside of the axial bearing sleeve 3, and driving the frustum head 61 on the upper side not to contact the frustum hole 32 on the upper side, so that the bearing cavity 31 maintains an upper open state, and the frustum head 61 on the lower side cooperates with the frustum hole 32 on the lower side to achieve a blocking effect on the frustum hole 32 on the lower side, so that the lower side of the bearing cavity 31 remains in a closed state;

[0049] Then, after the concrete pump delivers the cleaning water flow into the pipe body 8, the water flow will continuously enter the load-bearing chamber 31 through the cone hole 32 located on the upper side. Due to the elastic contraction of the pre-sealing spring 65 and the pre-passing spring 64, the cone head 61 located on the lower side is kept closed to the lower side of the load-bearing chamber 31, so that the water flow is continuously retained and increased in the load-bearing chamber 31. After the water flow accumulates to a certain amount, the water pressure will continuously act on the axial load-bearing sleeve 3, so that the axial load-bearing sleeve 3, the pre-passing spring 64 and the pre-sealing spring 65 produce tensile deformation. The axial load-bearing sleeve 3 produces synchronous downward tensile deformation under the restriction of the overall water flow on the upper side, which will drive the cleaning shovel 4 and the load-bearing tensioning component 5 to produce a synchronous downward movement, and the cleaning shovel 4 produces a downward shoveling impact force;

[0050] When the axial bearing sleeve 3 is subjected to the water pressure and produces the tensile deformation, since the stiffness coefficient of the pre-pass spring 64 is smaller than the stiffness coefficient of the pre-sealing spring 65, and the length of the pre-pass spring 64 is larger than the length of the pre-sealing spring 65, the pre-pass spring 64 will produce the tensile deformation first, and the deformation of the pre-pass spring 64 is larger than the deformation of the pre-sealing spring 65. Therefore, when the axial bearing sleeve 3 produces the downward tensile deformation, the blocking arc block 63 will drive the frustum connecting rod 62 and the frustum head 61 located on the upper side to produce the downward movement accompanied by the elongation deformation of the axial bearing sleeve 3, and maintain the sealing effect of the frustum head 61 located on the lower side on the lower end of the bearing cavity 31 in the early stage;

[0051] As the water flow into the bearing chamber 31 increases, the pre-pass spring 64 and the pre-sealing spring 65 are continuously stretched and deformed, which also drives the axial bearing sleeve 3 to be stretched and deformed. After the axial bearing sleeve 3 is fully stretched, the pre-pass spring 64 is also fully stretched. The water pressure in the bearing chamber 31 continuously acts on the frustum head 61 on the lower side through the frustum hole 32 on the lower side, causing the pre-sealing spring 65 to produce a downward stretching deformation, and then drives the frustum connecting rod 62 to continue to move downward through the blocking arc block 63, and the frustum on the lower side The head 61 will continue to move downward under the action of water pressure, and then move to the outside of the frustum hole 32 on the lower side. At the same time, the frustum head 61 on the lower side also drives the frustum head 61 on the upper side to completely move into the frustum hole 32 on the upper side through the frustum connecting rod 62, thereby blocking the frustum hole 32 on the upper side and preventing the water flow from continuing to enter the load-bearing cavity 31. At this time, the load-bearing cavity 31 remains closed on the upper side and open on the lower side, and the water flow can flow out through the frustum hole 32 on the lower side to further flush the cleaning shovel 4.

[0052] After the water in the bearing chamber 31 continuously flows out, the water pressure effect continues to decrease. Since the stiffness coefficient of the axial bearing sleeve 3 is equal to the stiffness coefficient of the pre-sealing spring 65, when the water pressure cannot resist the elastic recovery deformation of the pre-sealing spring 65, it cannot resist the elastic reset deformation of the axial bearing sleeve 3. Therefore, the axial bearing sleeve 3 and the pre-sealing spring 65 will produce synchronous contraction and recovery deformation. The contraction deformation of the axial bearing sleeve 3 will drive the cleaning shovel 4 to move upward close to the side of the upper friction ring 1, so that the cleaning shovel 4 produces an upward energy storage effect. The contraction and recovery deformation of the pre-sealing spring 65 will push the blocking arc block 63 to move upward, prompting the pre-pass spring 64 to produce elastic contraction and recovery. At the same time, it can also drive the frustum head 61 on the lower side and the frustum head 61 on the upper side to move upward synchronously through the frustum connecting rod 62, so that the frustum head 61 on the lower side moves into the frustum hole 32 on the lower side, and realigns the frustum head 61 on the lower side. The cone hole 32 is sealed to restore the closed state of the lower side of the load-bearing chamber 31, so that the cone head 61 located on the upper side moves to the outside of the cone hole 32 located on the upper side, reopens the cone hole 32 located on the upper side, and restores the open state of the upper end of the load-bearing chamber 31. Then, the water flows through the cone hole 32 located on the upper side to enter the load-bearing chamber 31 again, continuously increasing the water pressure in the load-bearing chamber 31, repeating the above-mentioned tensile deformation effect on the axial load-bearing sleeve 3, the pre-pass spring 64 and the pre-sealing spring 65, so that the cleaning shovel 4 continues to produce a downward scraping impact. In the process of the cleaning device continuing to move downward in the pipeline body 8 under the action of the pumped water flow, the axial load-bearing sleeve 3, the pre-pass spring 64 and the pre-sealing spring 65 drive the cleaning shovel 4 to produce a reciprocating downward scraping and upward energy storage effect, further promoting the cleaning effect of the cleaning shovel 4 on the solidified material on the inner wall of the pipeline body 8, improving the cleaning efficiency, and effectively ensuring the safety of the subsequent application of the pipeline body 8.

[0053] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A cleaning device for commercial concrete delivery pipeline, characterized in that: It comprises an upper friction ring (1) and a lower friction ring (2) located at the lower side of the upper friction ring (1), an axial bearing sleeve (3) is fixedly connected between the upper friction ring (1) and the lower friction ring (2), and a bearing tensioning component (5) is slidably arranged inside the axial bearing sleeve (3); The lower end of the axial load-bearing sleeve (3) extends to the lower side of the lower friction ring (2) and is fixedly connected to a plurality of hinged seats (42) evenly distributed along the circumferential direction; a cleaning shovel (4) is hingedly connected to the lower end of the hinged seat (42), and the load-bearing tensioning assembly (5) cooperates with the cleaning shovel (4); The load-bearing tensioning assembly (5) comprises a load-bearing slider (51) slidably arranged on the inner wall of the axial load-bearing sleeve (3); the lower end of the load-bearing slider (51) is fixedly connected to a load-bearing transmission rod (52); the lower end of the load-bearing transmission rod (52) is fixedly connected to a cone tensioning block (53); the outer end of the cone tensioning block (53) is fixedly connected to a plurality of expansion wedges (54) at positions corresponding to the cleaning shovel (4); A bearing cavity (31) is provided in the axial bearing sleeve (3), a plurality of frustum holes (32) evenly distributed along the circumferential direction are provided at the upper and lower ends of the bearing cavity (31), and the frustum holes (32) are arranged at intervals from the cleaning shovel (4), the two frustum holes (32) at corresponding positions at the upper and lower ends are close to each other on the side with a small diameter, and a reciprocating impact assembly (6) is provided between the two frustum holes (32) at corresponding positions at the upper and lower ends; The reciprocating impact assembly (6) comprises a plurality of frustum connecting rods (62) slidably arranged in the bearing cavity (31) at positions corresponding to the frustum holes (32); the upper and lower ends of the frustum connecting rod (62) extend to the outside of the corresponding frustum holes (32) and are fixedly connected to frustum heads (61); the frustum heads (61) match the frustum holes (32), and the frustum heads (61) are close to the axial bearing sleeve (3) on a side with a small diameter; the outer ends of the frustum connecting rods (62) are fixedly connected to blocking arc blocks (63); The upper end of the blocking arc block (63) is fixedly connected to a pre-clearance spring (64) which is slidably mounted on the outside of the cone connecting rod (62), and the upper end of the pre-clearance spring (64) is fixedly connected to the upper inner wall of the load-bearing cavity (31); the lower end of the blocking arc block (63) is fixedly connected to a pre-sealing spring (65) which is slidably mounted on the outside of the cone connecting rod (62), and the lower end of the pre-sealing spring (65) is fixedly connected to the lower inner wall of the load-bearing cavity (31).

2. A cleaning device for commercial concrete delivery pipeline according to claim 1, characterized in that: The lower end of the axial load-bearing sleeve (3) is fixedly connected to a limiting cone hole ring (55) that matches the cone tensioning block (53); the upper end of the limiting cone hole ring (55) is fixedly connected to a return spring (56) that is arranged on the outside of the load-bearing transmission rod (52) in a sliding sleeve; the upper end of the return spring (56) is fixedly connected to the load-bearing sliding block (51), and the return spring (56) maintains a constant extension state when not subjected to external force.

3. A cleaning device for commercial concrete delivery pipeline according to claim 1, characterized in that: The length of the pre-pass spring (64) is 2 to 3 times the length of the pre-sealing spring (65), the stiffness coefficient of the pre-pass spring (64) is 4 to 6 times the stiffness coefficient of the pre-pass spring (64), the stiffness coefficient of the pre-sealing spring (65) is equal to the stiffness coefficient of the axial bearing sleeve (3), and when no external force is applied, the axial bearing sleeve (3), the pre-pass spring (64) and the pre-sealing spring (65) all maintain a constant contraction state.

4. A cleaning device for commercial concrete delivery pipeline according to claim 1, characterized in that: The upper ends of the upper friction ring (1) and the lower friction ring (2) are both fixedly connected to a plurality of drainage tubes (7) evenly distributed along the circumferential direction, and the lower ends of the drainage tubes (7) are fixedly connected to inclined arc tubes (71) connected thereto.

5. A cleaning device for commercial concrete delivery pipeline according to claim 4, characterized in that: The inclined arc tube (71) connected to the drainage tube (7) at the upper end of the upper friction ring (1) is embedded in the upper friction ring (1), and the lower end of the inclined arc tube (71) extends to the lower side of the upper friction ring (1); the inclined arc tube (71) connected to the drainage tube (7) at the upper end of the lower friction ring (2) is embedded in the lower friction ring (2), and the lower end of the inclined arc tube (71) extends to the lower side of the lower friction ring (2).

6. A cleaning device for commercial concrete delivery pipeline according to claim 1, characterized in that: A tension elastic sleeve (41) is fixedly connected between two adjacent cleaning shovels (4), and a torsion spring is provided at the rotation point where the hinge seat (42) and the cleaning shovel (4) are hinged.

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