Anti-setting concrete distributing machine for water conservancy and hydropower construction

Abstract

The application provides a water conservancy and hydropower construction anti-solidification concrete distributing machine, and relates to the field of concrete distributing machines, which comprises a pressure seat, the pressure seat is axially inserted into the inside of a trigger pipeline, when the feeding pipeline is blocked, the shunt assembly can unload the concrete pumped to the position after the blocked position through the protection pipeline, avoid the phenomenon of drum pump or pipe explosion caused by excessive pressure in the feeding pipeline, and the blocked position of the feeding pipeline can be quickly and accurately found, avoid the solidification phenomenon caused by long-time blockage of the concrete, solve the problem that the feeding pipeline of the existing concrete distributing machine has no pressure relief or indication structure, and the lack of pressure relief structure after blockage easily causes the drum pump phenomenon and pump body damage, and it is difficult to find which section of the feeding pipeline is blocked, and the long dredging time also easily causes the problem of solidification of the residual concrete in the inside.

Description

Technical Field

[0001] This invention relates to the field of concrete placing boom technology, and particularly to an anti-freezing concrete placing boom for water conservancy and hydropower construction. Background Technology

[0002] Concrete pouring is an essential part of water conservancy and hydropower construction, and concrete placing booms are a common type of concrete pouring machinery (construction machinery). They are the end devices for pumping concrete, and the pumped concrete is delivered through pipelines to the formwork of the component to be poured to realize the concrete placement and pouring operation.

[0003] However, currently available concrete placing booms used in water conservancy and hydropower construction lack pressure relief or indicator structures in their conveying pipes. When the concrete is too viscous or contains large foreign objects, the conveying pipes are easily blocked. Since the concrete placing boom's pipe assembly is generally composed of multiple conveying pipe sections spliced ​​together, the lack of a pressure relief structure after blockage can easily lead to pump bulging and damage to the pump body. Furthermore, because there is no indicator structure in the conveying pipes, it is difficult to identify which section is blocked. Excessive unblocking time can also lead to the solidification of residual concrete inside, increasing the difficulty of unblocking, resulting in poor stability and low practicality. Summary of the Invention

[0004] This disclosure relates to an anti-solidification concrete placing boom for hydraulic and hydropower construction. It includes a diversion component and a triggering component. The triggering component monitors the material transport within the installed conveying pipeline. When the material is being transported normally, it does not trigger the protection and indication functions of the diversion component. When the conveying pipeline is blocked, the triggering component automatically activates the protection and indication functions of the diversion component. The diversion component discharges the concrete continuing to be pumped after the blockage through the protection pipe, preventing excessive pressure inside the conveying pipeline from causing pump bulging or pipe bursting. Simultaneously, by observing the triggering status of the diversion component in the conveying pipeline, the location and number of sections of the blocked pipeline can be quickly and accurately determined (since the protection and triggering pipes are located at the output end of the conveying pipeline, when a section of the diversion component triggers its protection and indication functions, the blockage location is inside the subsequent section of the conveying pipeline in the transport direction). This facilitates rapid maintenance and prevents the concrete from solidifying due to prolonged blockage. It exhibits high stability, flexibility, and practicality.

[0005] The first aspect of this disclosure provides an anti-freezing concrete placing boom for water conservancy and hydropower construction, specifically comprising: a material pipe assembly, the material pipe assembly including a conveying pipe, a protective pipe, and a triggering pipe, the conveying pipe being fixedly installed on the mounting frame of the concrete placing boom and connected to each other via pipe joints, the protective pipe being fixedly installed at the bottom of the conveying pipe and the triggering pipe being fixedly installed on the side of the conveying pipe, both the protective pipe and the triggering pipe communicating with the conveying pipe and located at the output end of the conveying pipe; a diversion assembly, the diversion assembly including a control valve ball and a linkage gear, the control valve ball being radially rotatably connected to the inside of the protective pipe and the linkage gear being rotatably connected to the outside of the rotating shaft of the control valve ball; and a triggering assembly, the triggering assembly including a pressure seat, an adjusting rod, and a positioning disc, the pressure seat being axially inserted into the inside of the triggering pipe and the adjusting rod being axially rotatably connected to the inside of the triggering pipe, and the positioning disc being axially inserted into the inside of the triggering pipe.

[0006] In at least some embodiments, the pressure seat is provided with limit sealing blocks at both the top and bottom, and the trigger pipe is provided with a limit sealing groove inside, with the limit sealing block inserted into the limit sealing groove.

[0007] In at least some embodiments, when the pressure seat is moved to its maximum position away from the conveying pipeline, the limiting sealing block can still block the limiting sealing groove on the side close to the conveying pipeline.

[0008] In at least some embodiments, a linkage rack is provided on the limiting sealing block located at the bottom of the pressure seat, and the linkage rack meshes with the teeth of the linkage gear for transmission.

[0009] In at least some embodiments, the diversion assembly further includes a time-sharing synchronization block, which is radially inserted into the interior of the control valve ball. The interior of the time-sharing synchronization block is provided with a control top spring, the two ends of which abut against the interior of the time-sharing synchronization block and the interior of the rotating shaft of the control valve ball, respectively.

[0010] In at least some embodiments, the linkage gear has a time-sharing synchronization tooth groove inside. Under the action of the control top spring, the time-sharing synchronization block is inserted into the time-sharing synchronization tooth groove. The cross-sectional shape of a single tooth groove of the time-sharing synchronization tooth groove and the outer end block of the time-sharing synchronization block are both right-angled triangles. When the pressure seat moves away from the conveying pipe, the straight edges of the tooth grooves of the time-sharing synchronization block and the time-sharing synchronization tooth groove are engaged with each other.

[0011] In at least some embodiments, the pressure seat is provided with a sealing top spring on its side, and the two ends of the sealing top spring abut against the side of the pressure seat and the side of the positioning plate, respectively.

[0012] In at least some embodiments, the adjusting rod has threads on the outside of its body, and the adjusting rod is screwed into the inside of the positioning plate through the threaded rod body.

[0013] In at least some embodiments, the positioning disk has a regular polygonal cross-sectional shape, and the trigger pipe has a track groove inside, into which the positioning disk is inserted.

[0014] The concrete placing boom for anti-freezing in water conservancy and hydropower construction provided by this invention has the following beneficial effects.

[0015] The triggering component monitors the material conveying status inside the installed conveying pipeline. When the material is being conveyed normally, it will not trigger the protection and indication functions of the diversion component. When the conveying pipeline is blocked, the triggering component can automatically trigger the protection and indication functions of the diversion component. The diversion component can discharge the concrete that continues to be pumped after the blockage through the protection pipe, avoiding excessive pressure inside the conveying pipeline that could cause pump swelling or pipe bursting. At the same time, by observing the triggering status of the diversion component in the conveying pipeline, the location of the blockage and the location and number of sections of the conveying pipeline that are blocked can be quickly and accurately determined (since the protection pipe and triggering pipe are located at the output end of the conveying pipeline, when a section of the diversion component triggers the protection and indication functions, the blockage location is inside the subsequent conveying pipeline in the conveying direction of that section of the conveying pipeline). This facilitates rapid maintenance, avoids the phenomenon of concrete solidification due to prolonged blockage, and improves the stability, flexibility, and practicality of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the conveying pipeline of the present invention when materials (concrete) are being conveyed normally.

[0021] Figure 3 This is a schematic diagram of the disassembled trigger component of the present invention.

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the current splitter component of the present invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of the current shunt component when the triggering component of the present invention triggers the depressurization, protection and indication functions.

[0024] Figure 6 This is a schematic diagram of the internal structure of the shunt component when the pressure relief, protection and indication functions are triggered and the component automatically resets.

[0025] Figure 7 This is the present invention. Figure 2 Enlarged structural diagram of part A in the middle.

[0026] Figure 8 This is the present invention. Figure 6 Enlarged structural diagram of part B in the middle.

[0027] List of reference numerals

[0028] 1. Material pipe assembly; 101. Material conveying pipe; 102. Protective pipe; 103. Triggering pipe; 1031. Limiting and sealing groove; 1032. Track groove;

[0029] 2. Diverter assembly; 201. Control valve ball; 202. Linkage gear; 2021. Time-sharing synchronization gear; 203. Time-sharing synchronization block; 2031. Control top spring;

[0030] 3. Triggering component; 301. Pressure seat; 3011. Limiting and sealing block; 3012. Linkage rack; 3013. Sealing top spring; 302. Adjusting rod; 303. Positioning plate;

[0031] 4. Concrete placing boom. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please refer to Figures 1 to 8 As shown:

[0034] Example 1: This invention provides an anti-freezing concrete placing boom for water conservancy and hydropower construction, including a material pipe assembly 1. The material pipe assembly 1 includes a conveying pipe 101, a protective pipe 102, and a triggering pipe 103. The conveying pipe 101 is fixedly installed on the mounting frame of the concrete placing boom 4, and the conveying pipes 101 are connected to each other through pipe joints. The protective pipe 102 is fixedly installed at the bottom of the conveying pipe 101, and the triggering pipe 103 is fixedly installed on the side of the conveying pipe 101. Both the protective pipe 102 and the triggering pipe 103 are connected to the conveying pipe 101, and the protective pipe 102 and the triggering pipe 103 are located at the output end of the conveying pipe 101. Therefore, when a certain section of the diversion assembly 2 triggers the protection and indication functions, the blockage location is inside the subsequent conveying pipe 101 facing the conveying direction of that section of the conveying pipe 101; the diversion assembly 2 includes a control valve ball 201 and a linkage gear 202. The control valve ball 201 is radially rotatably connected inside the protection pipe 102, and the linkage gear 202 is rotatably connected outside the rotating shaft of the control valve ball 201; the trigger assembly 3 includes a pressure seat 301, an adjusting rod 302 and a positioning plate 303. The pressure seat 301 is axially inserted into the inside of the trigger pipe 103, and the adjusting rod 302 is axially rotatably connected into the inside of the trigger pipe 103. The positioning plate 303 is axially inserted into the inside of the trigger pipe 103.

[0035] In this embodiment, the pressure seat 301 is provided with limiting and sealing blocks 3011 at both the top and bottom, and the trigger pipe 103 is provided with a limiting and sealing groove 1031 inside. The limiting and sealing blocks 3011 are inserted into the limiting and sealing groove 1031. When the pressure seat 301 moves to the maximum position away from the conveying pipe 101, the limiting and sealing blocks 3011 can still block the limiting and sealing groove 1031 on the side close to the conveying pipe 101. This design ensures that when the trigger component 3 triggers the pressure relief, protection and indication functions of the diversion component 2, concrete will not leak from the inside of the limiting and sealing groove 1031, avoiding the phenomenon that the trigger component 3 cannot reset itself, and ensuring stable use.

[0036] In this embodiment, the diversion component 2 further includes a time-sharing synchronization block 203, which is radially inserted into the inside of the control valve ball 201. A control top spring 2031 is provided inside the time-sharing synchronization block 203, with both ends of the control top spring 2031 abutting against the inside of the time-sharing synchronization block 203 and the inside of the rotating shaft of the control valve ball 201, respectively. During use, when the material inside the conveying pipe 101 can be smoothly conveyed, the trigger component 3 can block the triggering pipe 103. Because the material can be smoothly conveyed, the internal pressure inside the conveying pipe 101 is low. The triggering component 3 will not be triggered, thus enabling stable concrete conveying, placement, and pouring. When a section of the conveying pipe 101 is blocked due to some factor (such as excessively viscous concrete or large foreign objects inside the concrete), the material cannot pass smoothly through the conveying pipe 101. As the pumped concrete accumulates and the pumping pressure increases, the internal pressure inside the blocked conveying pipe 101 gradually increases. Under the action of the gradually increasing internal pressure, the triggering component 3 will automatically trigger the pressure relief, protection, and indication functions of the diversion component 2, resulting in a high degree of automation.

[0037] In this embodiment, a sealing top spring 3013 is provided on the side of the pressure seat 301, and the two ends of the sealing top spring 3013 abut against the side of the pressure seat 301 and the side of the positioning plate 303, respectively. A linkage rack 3012 is provided on the limiting sealing block 3011 located at the bottom of the pressure seat 301, and the linkage rack 3012 meshes with the gear teeth of the linkage gear 202 for transmission. During use, as the internal pressure inside the blocked material conveying pipe 101 gradually increases, the concrete will be squeezed and driven by the pressure to move the pressure seat 301 away from the material conveying pipe 101 and compress it. The sealing top spring 3013, along with the movement of the pressure seat 301, drives the linkage rack 3012 to rotate the linkage gear 202 in the forward direction. When the linkage gear 202 rotates in the forward direction, the straight edge of the block of the time-sharing synchronization block 203 and the straight edge of the tooth groove of the time-sharing synchronization tooth groove 2021 will engage with each other, thereby driving the control valve ball 201 to rotate synchronously. When the control valve ball 201 rotates, it can open the protection pipe 102. After that, the pumped concrete can be discharged through the protection pipe 102 and the internal pressure of the conveying pipe 101 will be reduced, avoiding the phenomenon of pump bulging or pipe bursting, and ensuring stable use.

[0038] In this embodiment, the linkage gear 202 has a time-sharing synchronous tooth groove 2021 inside. Under the action of the control top spring 2031, the time-sharing synchronous block 203 is inserted into the time-sharing synchronous tooth groove 2021. The cross-sectional shape of a single tooth groove of the time-sharing synchronous tooth groove 2021 and the outer end block of the time-sharing synchronous block 203 are both right-angled triangles. When the pressure seat 301 moves away from the conveying pipe 101, the straight edges of the tooth grooves of the time-sharing synchronous block 203 and the time-sharing synchronous tooth groove 2021 are engaged with each other. In use, when the pressure relief, protection and indication functions of the diversion component 2 are triggered, the trigger component 3 can automatically reset so that after maintenance and unblocking are completed, the conveying status of the material inside the conveying pipe 101 can continue to be monitored and controlled. During the reset process, the trigger component 3 will not link the diversion component 2 to close the protection pipe 102, ensuring that the protection pipe 102 will not be closed before maintenance is completed or before the pump is turned off. The use is stable. When the diversion component After the pressure relief, protection, and indication functions of component 2 are triggered, the internal pressure of the conveying pipeline 101 decreases. Under the action of the sealing top spring 3013, the pressure seat 301 will automatically move towards the conveying pipeline 101 to reset. During this process, the pressure seat 301 will drive the linkage gear 202 to reverse through the linkage rack 3012. During the reverse rotation of the linkage gear 202, the inclined edge of the block of the time-sharing synchronization block 203 and the inclined edge of the tooth groove of the time-sharing synchronization tooth groove 2021 will squeeze each other, so that the time-sharing synchronization block 203 will move into the wheel axle of the control valve ball 201 to avoid the reverse rotation of the linkage gear 202. Thus, the trigger component 3 will not link the diversion component 2 to close the protection pipeline 102 during the reset process. It is convenient and flexible to use. After the conveying pipeline 101 is manually cleared and repaired, the closed state of the protection pipeline 102 can be restored by manually rotating the control valve ball 201 in the forward direction, so as to facilitate the subsequent conveying, placement, and pouring of concrete.

[0039] In this embodiment, the adjusting rod 302 has a thread on its outer side and is screwed into the positioning plate 303 through the thread. The positioning plate 303 has a regular polygonal cross-section and a track groove 1032 inside the trigger pipe 103. The positioning plate 303 is inserted into the track groove 1032. In use, the pressure inside the conveying pipe 101 required for the trigger component 3 to trigger the protection and indication functions of the diversion component 2 can be freely changed. It can adapt to pumping, placing and pouring of different types of pumping equipment and different grades of concrete. When the adjusting rod 302 is rotated, the adjusting rod 302 can drive the positioning plate 303 to move inside the track groove 1032 through the thread, thereby changing the initial extension length of the sealing top spring 3013, and thus changing the pressure required to push the pressure seat 301 to move, that is, the internal pressure inside the conveying pipe 101. It has a very strong adaptability.

[0040] The specific usage and function of this embodiment: In this invention, based on the specifications of the concrete placing boom 4, pump pressure, and parameters such as the concrete grade and viscosity, the internal pressure of the conveying pipe 101 required for the triggering component 3 to trigger the protection and indication functions of the diversion component 2 is adjusted. When the adjusting rod 302 is rotated, the adjusting rod 302 can drive the positioning plate 303 to move inside the track groove 1032 through the rod thread to change the usage position, thereby changing the initial extension length of the sealing top spring 3013, and thus changing the pressure required to push the pressure seat 301 to move, that is, the internal pressure inside the conveying pipe 101. After the adjustment is completed, all the protection pipes 102 of the diversion components 2 are manually closed, and then concrete can be pumped for use. When the material inside pipe 101 can be smoothly conveyed, trigger component 3 can block trigger pipe 103. Because the material can be smoothly conveyed, the internal pressure inside conveying pipe 101 is low, and trigger component 3 will not be triggered, thus ensuring stable concrete conveying, placement, and pouring. When a section of conveying pipe 101 is blocked due to some factor (such as excessively viscous concrete or large foreign objects inside the concrete), the material cannot pass smoothly through conveying pipe 101. As the pumped concrete accumulates and the pumping pressure increases, the internal pressure inside the blocked section of conveying pipe 101 gradually increases. Under the action of this gradually increasing internal pressure, trigger component 3 will automatically trigger the pressure relief, protection, and indication functions of diversion component 2. As the internal pressure inside the blocked conveying pipe 101 gradually increases, the concrete, under pressure, will squeeze and drive the pressure seat 301 to move away from the conveying pipe 101, compressing the sealing top spring 3013. With the movement of the pressure seat 301, the linkage rack 3012 can drive the linkage gear 202 to rotate forward. When the linkage gear 202 rotates forward, the straight edge of the time-sharing synchronization block 203 and the straight edge of the time-sharing synchronization tooth groove 2021 will engage with each other, thereby driving the control valve ball 201 to rotate synchronously. When the control valve ball 201 rotates, it can open the protection pipe 102. Afterward, the pumped concrete can be discharged through the protection pipe 102, reducing the internal pressure of the conveying pipe 101 and preventing pump bulging or pipe bursting. After the pressure relief, protection, and indication functions of the diversion component 2 are triggered, the triggering component 3 can automatically reset. This allows for continued monitoring and control of the material conveying status inside the conveying pipeline 101 after maintenance and unblocking are completed. During the reset process, the triggering component 3 will not trigger the diversion component 2 to close the protection pipeline 102, ensuring that the protection pipeline 102 will not close before maintenance is completed or the pump is shut down. Since the protection pipeline 102 and the triggering pipeline 103 are located at the output end of the conveying pipeline 101, when a section of the diversion component 2 triggers its protection and indication functions, the blockage location is inside the subsequent conveying pipeline 101 facing the conveying direction. The blockage location can be quickly determined based on the triggering status of the diversion component 2 for unblocking and maintenance.When the pressure relief, protection, and indication functions of the diversion component 2 are triggered, the internal pressure of the conveying pipeline 101 decreases. Under the action of the sealing top spring 3013, the pressure seat 301 automatically moves towards the conveying pipeline 101 to reset. During this process, the pressure seat 301 drives the linkage gear 202 to reverse through the linkage rack 3012. During the reverse rotation of the linkage gear 202, the inclined edge of the time-sharing synchronization block 203 and the inclined edge of the time-sharing synchronization tooth groove 2021 will squeeze each other, causing the time-sharing synchronization block 203 to move towards the wheel axle of the control valve ball 201 to avoid the reverse rotation of the linkage gear 202. Thus, the component 3 will not trigger the diversion component 2 to close the protection pipeline 102 during the reset process. This is convenient and flexible to use. After the conveying pipeline 101 has been manually cleared and repaired, the closed state of the protection pipeline 102 can be restored by manually rotating the control valve ball 201 in the forward direction, so that it can be used for subsequent concrete conveying, placement, and pouring.

[0041] The following points should be noted in this article:

[0042] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0043] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0044] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A concrete placing boom for anti-freezing concrete in water conservancy and hydropower construction, characterized in that, include: The material pipe assembly includes a conveying pipe, a protective pipe, and a trigger pipe. The conveying pipes are fixedly installed on the mounting frame of the concrete placing boom and connected to each other via pipe joints. The protective pipe is fixedly installed at the bottom of the conveying pipe, and the trigger pipe is fixedly installed on the side of the conveying pipe. Both the protective pipe and the trigger pipe are connected to the conveying pipe and are located at the output end of the conveying pipe. The diversion assembly includes a control valve ball and a linkage gear. The control valve ball is radially rotatably connected to the inside of the protective pipe, and the linkage gear is rotatably connected to the outside of the control valve ball's shaft. The trigger assembly includes a pressure seat, an adjusting rod, and a positioning disc. The pressure seat is axially inserted into the inside of the trigger pipe, and the adjusting rod is axially rotatably connected to the inside of the trigger pipe. The positioning disc is axially inserted into the inside of the trigger pipe. The pressure seat is provided with limit sealing blocks at both the top and bottom, and the trigger pipe is provided with a limit sealing groove inside, with the limit sealing block inserted into the limit sealing groove. When the pressure seat moves to its maximum position away from the conveying pipeline, the limiting sealing block can still seal the limiting sealing groove on the side close to the conveying pipeline. The limiting sealing block located at the bottom of the pressure seat is provided with a linkage rack, and the linkage rack meshes with the teeth of the linkage gear for transmission; The diversion assembly also includes a time-sharing synchronization block, which is radially inserted into the inside of the control valve ball. The inside of the time-sharing synchronization block is provided with a control top spring, and the two ends of the control top spring respectively abut against the inside of the time-sharing synchronization block and the inside of the rotating shaft of the control valve ball. The linkage gear has a time-sharing synchronous tooth groove inside. Under the action of the control top spring, the time-sharing synchronous block is inserted into the time-sharing synchronous tooth groove. The cross-sectional shape of a single tooth groove of the time-sharing synchronous tooth groove and the outer end block of the time-sharing synchronous block is a right triangle. When the pressure seat moves away from the conveying pipe, the straight edges of the tooth grooves of the time-sharing synchronous block and the time-sharing synchronous tooth groove are engaged with each other. The pressure seat is provided with a sealing top spring on its side, and the two ends of the sealing top spring abut against the side of the pressure seat and the side of the positioning plate, respectively.

2. The anti-freezing concrete placing boom for water conservancy and hydropower construction as described in claim 1, characterized in that: The adjusting rod has threads on its outer surface, and the adjusting rod is screwed into the inside of the positioning plate through the thread.

3. The anti-freezing concrete placing boom for water conservancy and hydropower construction as described in claim 2, characterized in that: The positioning disk has a regular polygonal cross-sectional shape, and the trigger pipe has a track groove inside, into which the positioning disk is inserted.

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