Concrete conveying mechanism for concrete wet spraying trolley

Abstract

The invention relates to a concrete wet spraying trolley, in particular to a concrete conveying mechanism for the concrete wet spraying trolley. According to the concrete conveying mechanism for the concrete wet spraying trolley, the operation efficiency is improved, the operation speed is increased, then energy consumption is reduced, and the pressure and continuity of pumping concrete grout are kept. According to the technical scheme, the concrete conveying mechanism for the concrete wet spraying trolley comprises two sets of fixed connecting frames, the outer sides of the fixed connecting frames are fixedly connected with external connecting frames, and a first corner bracket is fixedly connected between the right sides of the fixed connecting frames. The distribution pipe is driven by the servo motor to rotate, and the mode that the three sets of hydraulic cylinders circularly work to conduct material suction and pumping operation is matched, so that at least one hydraulic cylinder can be in a pumping state, one hydraulic cylinder can also be in the material suction state, and continuity can be kept in the pumping process of concrete grout.

Description

Technical Field

[0001] The invention relates to a concrete wet spraying trolley, in particular to a concrete conveying mechanism for the concrete wet spraying trolley. Background Art

[0002] At present, when spraying concrete on a plane, a wet spraying trolley is used. That is, a silo and a conveying mechanism for placing concrete materials are installed on the wet spraying trolley. The conveying mechanism conveys the concrete in the silo to the spraying pipe, and then the dehydrating agent spraying mechanism and the fan installed at the end of the spraying pipe spray the concrete onto the plane. At present, a double hydraulic cylinder with a bent pipe structure is more commonly used. The principle is that the double hydraulic cylinders suck the material and push it, and then the bent pipe is connected to the pushing hydraulic cylinder to transport the concrete. However, there are many disadvantages in using this method, that is, there is a problem of conveying concrete when the bent pipe is switched. The interruption time of concrete causes the dehydrating agent injection mechanism and the fan to idle, resulting in a waste of dehydrating agent. The idling energy of the injection mechanism and the fan is large. In order to improve the continuity of pumping and reduce the interruption time caused by switching elbows, this type of conveying mechanism needs to set the hydraulic cylinder to a large size and a long length, just to convey more concrete slurry at a time, and the energy consumption required is also high. In addition, due to the idling time, the work efficiency is low, the operating time of the wet spraying trolley is also longer, and the total energy consumption is also higher. At present, there is also a continuous conveying device, but this type of conveying device is large in size and has a low conveying pressure.

[0003] Therefore, it is necessary to develop a concrete conveying mechanism for a concrete wet spraying trolley that improves operating efficiency and speed, thereby reducing energy consumption, and maintaining the pressure and continuity of the pumped concrete slurry. Summary of the invention

[0004] In order to overcome the shortcomings of the current wet shotcrete trolley concrete conveying mechanism, such as insufficient conveying continuity, easy waste of materials, low operating efficiency and high total energy consumption, the technical problem to be solved is: to provide a concrete conveying mechanism for a concrete wet shotcrete trolley that improves operating efficiency and speed, thereby reducing energy consumption, and maintains the pressure and continuity of pumped concrete slurry.

[0005] The technical solution is: a concrete conveying mechanism for a concrete wet spraying trolley, comprising a fixed frame, the fixed frame, the number of the fixed frames is two groups, the outer sides of the fixed frames are fixedly connected with external frames, the right sides of the fixed frames are fixedly connected with a first angle frame, the middle parts of the fixed frames are fixedly connected with a second angle frame, the left side of the fixed frame is fixedly connected with a third angle frame, the first angle frame, the second angle frame and the third angle frame are fixedly connected with interconnecting pipes, the right side of the first angle frame is fixedly connected with a fixed pipe, the right side of the fixed pipe is fixedly connected with a mounting pipe, the mounting pipe is a structure with three openings evenly opened, the right periphery of the mounting pipe is fixedly connected with a mounting frame, the mounting frame is fixedly connected with an output pipe; each opening structure of the mounting pipe is provided with a conveying device, the conveying devices are respectively communicated with the opening structures of the mounting pipe, and the conveying The device is used to transport concrete slurry; a distribution device is provided at a position between the fixed pipe and the inside of the installation pipe, the distribution device is intercommunication with the conveying device, the distribution device is used to switch the intercommunication channel with each conveying device, and the distribution device is used to distribute the input channel of the pumped concrete slurry; a cut-off device is provided at each conveying device, the cut-off device is used for one-way switching controlled by the pressure of the flowing concrete slurry, and the cut-off device is used to connect with an external concrete slurry source; a temporary storage device is provided between the first angle bracket and the second angle bracket, the number of the temporary storage devices is three groups, and the temporary storage devices are respectively connected to the adjacent conveying devices and are intercommunication; a pushing device is provided at the third angle bracket, the pushing device has three groups, the pushing devices are respectively connected to the adjacent temporary storage devices, and the pushing device is used to absorb and push concrete slurry.

[0006] Optionally, the conveying device includes an inclined feeding tube, and there are three groups of the inclined feeding tubes, which are respectively installed at the opening structure on the outer periphery of the mounting tube, the inclined feeding tube is communicated with the interior of the mounting tube, a sealing tube is fixedly connected to the interior of the mounting tube, the sealing tube is a structure with three holes evenly opened, the opening structure of the sealing tube is communicated with the opening structure of the mounting tube, the left end of the inclined feeding tube is fixedly connected with a three-way pipe, the intercepting device is respectively arranged on the upper side of the three-way pipe, and the temporary storage device is respectively connected to the left side of the three-way pipe.

[0007] Optionally, the distribution device includes a servo motor, the servo motor is fixedly connected inside the fixed tube, the distribution tube is fixedly connected to the output shaft of the servo motor, the distribution tube extends to the right from the right side of the mounting tube, the distribution tube is a structure with a rectangular hole, the distribution tube is fixedly connected to the outer periphery of the area where the distribution tube extends to the right from the mounting tube, and the outer side of the bearing is fixedly connected to the mounting frame.

[0008] Optionally, the intercepting device includes expansion tubes, and the number of the expansion tubes is three. The expansion tubes are respectively fixedly connected to the upper side of the tee tube, the upper side of the expansion tubes is fixedly connected to an external tube, the inner side of the expansion tubes is fixedly connected to a sealing ring, the upper inner side of the expansion tubes is fixedly connected to a telescopic pipe sleeve, the lower end of the moving rod of the telescopic pipe sleeve is fixedly connected to a closing cone, the closing cone can contact the inner ring of the sealing ring for sealing, and the lower side of the closing cone is fixedly connected to a force plate.

[0009] Optionally, the temporary storage device includes temporary storage tubes, and the number of the temporary storage tubes is three groups. The temporary storage tubes are respectively installed between the first angle bracket and the second angle bracket, and the positions of the temporary storage tubes correspond to the positions of the three-way pipes. Three docking tubes are evenly and fixedly connected to the right side of the first angle bracket, and the docking tubes are respectively connected to the adjacent temporary storage tubes and the three-way pipes and are interconnected. The temporary storage tubes are each provided with a piston, and the pistons are respectively connected to the pushing devices.

[0010] Optionally, the pushing device includes hydraulic cylinders, and the number of the hydraulic cylinders is three groups. The hydraulic cylinders are respectively fixedly connected to the third angle bracket, and the position of each hydraulic cylinder corresponds to the position of the adjacent temporary storage tube. The right end of the telescopic rod of the hydraulic cylinder is fixedly connected with an extension rod, and the extension rod is respectively fixedly connected to the left end of the adjacent piston.

[0011] Optionally, it also includes an access device, which is arranged on the upper side of the external tube, and is used to pre-treat the concrete slurry. An external box is fixedly connected between the upper sides of the external tubes, and the external box is interconnected with the three groups of external tubes. A sealing strip is fixedly connected to the upper surface of the external box, and a mixing assembly is provided in the middle of the external box, and the mixing assembly is used to stir the concrete slurry.

[0012] Optionally, the mixing assembly includes a dual-axis motor and a stirring stick, the dual-axis motor is fixedly connected to the right side of the outer side of the external box body, two groups of stirring sticks are fixedly connected to the inside of the external box body, and the stirring sticks are connected to the output shaft of the dual-axis motor.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention drives the distribution pipe to rotate through a servo motor, and cooperates with the use of three groups of hydraulic cylinders to work in a cycle to perform suction and pumping operations. At least one hydraulic cylinder can be in a pumping state, and one hydraulic cylinder can be in a suction state. The concrete slurry can be pumped continuously, and the external spray pipe can be continuous during the spraying process, thereby improving the spraying efficiency and operating speed, reducing the operating time of the wet spraying trolley, and thus reducing energy consumption, avoiding the waste of dehydrating agent and wind power caused by the discontinuous pumping of the traditional wet spraying trolley, and can also be distinguished from the disadvantages of traditional continuous spraying of concrete slurry but insufficient pressure.

[0014] 2. The present invention adopts a method of continuous circulation operation of three groups of hydraulic cylinders. Compared with the traditional method of pumping by switching between two hydraulic cylinders and elbows, it can achieve continuous pumping of concrete slurry. Since the traditional pumping method of two hydraulic cylinders and elbows requires frequent switching of elbows, in order to improve the continuity of pumping and reduce the interruption time caused by switching elbows, the traditional pumping method requires the hydraulic cylinder to be very long and large, and the required power is also very high. The method of continuous circulation operation of three groups of hydraulic cylinders can not only achieve continuous pumping, but also reduce the volume of the hydraulic cylinder, thereby reducing the power required to reduce energy consumption.

[0015] 3. The present invention can evenly mix the concrete entering the external pipe by using a double-shaft motor to drive a stirring rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the third three-dimensional structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the fourth three-dimensional structure of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the pushing device part of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the temporary storage device part of the present invention.

[0022] Figure 7 It is a partially cutaway three-dimensional structural schematic diagram of the device part of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the conveying device part of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the intercepting device part of the present invention.

[0025] Fig.10 It is a partially cutaway three-dimensional structural schematic diagram of the intercepting device of the present invention.

[0026] Fig.11 It is a schematic diagram of the first three-dimensional structure of the distribution device part of the present invention.

[0027] Fig.12 It is a schematic diagram of the first three-dimensional structure of the distribution pipe part of the present invention.

[0028] Fig.13 It is a schematic diagram of a second three-dimensional structure of the distribution device part of the present invention.

[0029] Fig.14 It is a schematic diagram of the first three-dimensional structure of the sealing tube part of the present invention.

[0030] Fig.15 It is a schematic diagram of the second three-dimensional structure of the sealing tube part of the present invention.

[0031] Fig.16 It is a schematic diagram of the second three-dimensional structure of the distribution pipe part of the present invention.

[0032] Fig.17 It is a schematic diagram of the right cross-section structure of the distribution pipe and the sealing pipe part of the present invention.

[0033] Description of reference numerals: 1: fixed frame, 2: external frame, 3: first angle frame, 4: second angle frame, 5: third angle frame, 6: interconnection pipe, 7: fixed pipe, 8: installation pipe, 9: installation frame, 10: output pipe, 11: conveying device, 12: distribution device, 13: interception device, 14: temporary storage device, 15: pushing device, 111: feeding inclined pipe, 112: sealing pipe, 113: three-way pipe, 121: servo motor, 122: Distribution pipe, 123: bearing, 131: expansion pipe, 132: external pipe, 133: sealing ring, 134: telescopic pipe sleeve, 135: closing cone, 136: force plate, 141: temporary storage pipe, 142: docking pipe, 143: piston, 151: hydraulic cylinder, 152: extension rod, 16: access device, 161: external box, 162: sealing strip, 17: mixing component, 171: dual-axis motor, 172: stirring stick. DETAILED DESCRIPTION

[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Example 1

[0035] like Figure 1-Figure 4The present invention discloses a concrete conveying mechanism for a concrete wet spraying trolley, comprising a fixed frame 1, an external frame 2, a first angle frame 3, a second angle frame 4, a third angle frame 5, an interconnecting pipe 6, a fixed pipe 7, an installation pipe 8, a mounting frame 9, an output pipe 10, a conveying device 11, a distribution device 12, a flow interception device 13, a temporary storage device 14 and a pushing device 15. The number of the fixed frames 1 is two groups, the outer sides of the fixed frames 1 are fixedly connected with the external frames 2, the right sides of the fixed frames 1 are fixedly connected with the first angle frame 3, the middle parts of the fixed frames 1 are fixedly connected with the second angle frame 4, the left side of the fixed frame 1 is fixedly connected with the third angle frame 5, the first angle frame 3, the second angle frame 4 and the third angle frame 5 are fixedly connected with the interconnecting pipe 6, the right side of the first angle frame 3 is fixedly connected with the fixed pipe 7, the right side of the fixed pipe 7 is fixedly connected with the installation pipe 8, the installation pipe 8 is a structure with three openings evenly opened, the outer periphery of the right side of the installation pipe 8 is fixedly connected with the installation frame 9, the installation frame 9 is fixedly connected with the output pipe 10, each opening structure of the installation pipe 8 A conveying device 11 is provided at the position, and the conveying device 11 is interconnected with the opening structure of the installation pipe 8 respectively. The conveying device 11 is used to convey concrete slurry. A distribution device 12 is provided at the position between the fixed pipe 7 and the inside of the installation pipe 8. The distribution device 12 and the conveying device 11 can be interconnected. The distribution device 12 is used to switch the interconnection channel with each conveying device 11. The distribution device 12 is used to distribute the input channel of the pumped concrete slurry. A cut-off device 13 is provided at the conveying device 11. The cut-off device 13 is used for one-way switching controlled by the pressure of the flowing concrete slurry. The cut-off device 13 is used to connect with an external concrete slurry source. A temporary storage device 14 is provided between the first corner frame 3 and the second corner frame 4. The number of the temporary storage devices 14 is three groups. The temporary storage devices 14 are respectively connected to and interconnected with adjacent conveying devices 11. A pushing device 15 is provided at the third corner frame 5. There are three groups of pushing devices 15. The pushing devices 15 are respectively connected to adjacent temporary storage devices 14. The pushing devices 15 are used to absorb and push concrete slurry.

[0036] When spraying concrete slurry, in order to spray the concrete slurry continuously and without interruption, the dehydrating agent and the fan at the spraying pipe will not be sprayed empty, so as to improve the spraying efficiency and speed, thereby saving the overall operation time of the wet spraying trolley to reduce energy consumption, and also reducing the usage of the dehydrating agent and the like sprayed together when spraying concrete slurry. A concrete conveying mechanism for a concrete wet spraying trolley can be used; the concrete conveying mechanism for the concrete wet spraying trolley can be installed in the bucket of the wet spraying trolley through an external frame 2, so that the concrete conveying mechanism for the concrete wet spraying trolley is at the lower part of the silo, and the output pipe 10 is facing the rear of the vehicle for easy connection with a manipulator or a spraying pipe, and then the external spraying pipe with spraying dehydrating agent and air duct and the output pipe 1 are connected. 0, and then connect the intercepting device 13 to the bottom of the silo; at this time, the concrete slurry can be poured into the silo, and then the distributing device 12 and the pushing device 15 are started. The distributing device 12 will control the running time of the pushing device 15, and the pushing device 15 will drive the temporary storage device 14 to absorb the concrete slurry from the silo through the intercepting device 13, and output the absorbed concrete slurry through the conveying device 11 and the distributing device 12, and finally the concrete slurry is pumped out from the output pipe 10, and the air duct of the injection pipe will blow out a large amount of air to spray the pumped concrete slurry on the required plane, and the dehydrating agent will also be pumped at the pumped concrete slurry, so that the ejected concrete slurry can be quickly dehydrated and attached to the required plane, and the cycle is repeated. Example 2

[0037] like Figure 10-Figure 17 As shown, the conveying device 11 includes a feeding inclined tube 111, a sealing tube 112 and a three-way tube 113. There are three groups of feeding inclined tubes 111. The feeding inclined tubes 111 are respectively installed at the opening structure on the outer periphery of the mounting tube 8. The feeding inclined tubes 111 are interconnected with the inside of the mounting tube 8. The sealing tube 112 is a structure with three holes evenly opened. The opening structure of the sealing tube 112 is interconnected with the opening structure of the mounting tube 8. The distribution device 12 runs in the sealing tube 112. The left end of the feeding inclined tube 111 is fixedly connected with the three-way tube 113. The intercepting device 13 is respectively arranged on the upper side of the three-way tube 113, and the temporary storage device 14 is respectively connected to the left side of the three-way tube 113.

[0038] like Figure 11-Figure 17As shown, the distribution device 12 includes a servo motor 121, a distribution pipe 122 and a bearing 123. The servo motor 121 is fixedly connected to the fixed tube 7. The servo motor 121 is controlled by its servo system. The distribution pipe 122 is fixedly connected to the output shaft of the servo motor 121. The distribution pipe 122 is used to distribute the input channel of the concrete slurry. The distribution pipe 122 is located inside the sealing tube 112 and is in sealed contact. The distribution pipe 122 extends to the right from the right side of the mounting tube 8. The distribution pipe 122 is a structure with a rectangular hole. The opening structure of the distribution pipe 122 The size of the opening structures of any two adjacent sealed tubes 112 can be interconnected, so that the opening structure of the latter sealed tube 112 is in a blocked state of the outer wall of the distribution tube 122. The distribution tube 122 is a structure with a slope in the middle, and the slope structure can provide guidance for the pumped concrete slurry to avoid pumping energy loss due to excessive angle. The distribution tube 122 extends to the right from the mounting tube 8 and is fixedly connected to the outer periphery with a bearing 123. The outer side of the bearing 123 is fixedly connected to the mounting frame 9, and the left end of the output tube 10 is in sealed contact with the right side of the distribution tube 122.

[0039] like Figure 9-10 As shown, the intercepting device 13 includes an expansion tube 131, an external tube 132, a sealing ring 133, a telescopic tube sleeve 134, a closed cone 135 and a force plate 136. The expansion tubes 131 are in three groups. The expansion tubes 131 are fixedly connected to the upper side of the tee tube 113, and the upper side of the expansion tubes 131 is fixedly connected to the external tube 132. The external tube 132 is used to connect to the external concrete slurry source. The inner side of the expansion tube 131 is fixedly connected to the sealing ring 133, and the upper side of the inner side of the expansion tube 131 is fixedly connected to the telescopic tube sleeve 134. The telescopic tube sleeve 13 4 are all installed vertically, and the telescopic sleeves 134 are all stainless steel telescoping devices with seals. The lower ends of the moving rods of the telescopic sleeves 134 are all fixedly connected with closed cones 135, which can contact with the inner ring of the sealing ring 133 for sealing. The closed cones 135 are all truncated cone structures with a lower end area larger than an upper end area. The lower side of the closed cone 135 is fixedly connected with a force plate 136, which is an inclined structure. The inclined surface of the force plate 136 faces the temporary storage device 14, so that the pushed concrete slurry can push the inclined surface structure of the force plate 136 upward.

[0040] like Figure 6-Figure 7As shown, the temporary storage device 14 includes a temporary storage tube 141, a docking tube 142 and a piston 143. There are three groups of temporary storage tubes 141. The temporary storage tubes 141 are respectively installed between the first angle frame 3 and the second angle frame 4. The positions of the temporary storage tubes 141 correspond to the positions of the three-way pipe 113. The temporary storage tubes 141 are used to temporarily store the absorbed concrete slurry. Three docking tubes 142 are evenly and fixedly connected on the right side of the first angle frame 3. The docking tubes 142 are respectively connected to the adjacent temporary storage tubes 141 and the three-way pipe 113 and are interconnected. The temporary storage tubes 141 are all sleeved with pistons 143. The pistons 143 are respectively connected to the pushing devices 15. The rightmost side of the piston 143 can run to the right position in the docking tube 142.

[0041] like Figure 5-Figure 7 As shown, the pushing device 15 includes a hydraulic cylinder 151 and an extension rod 152. The number of the hydraulic cylinders 151 is three groups. The hydraulic cylinders 151 are fixedly connected to the third angle frame 5 respectively. The hydraulic cylinders 151 are horizontally arranged. The position of each hydraulic cylinder 151 corresponds to the position of the adjacent temporary storage tube 141 respectively. The hydraulic cylinder 151 is controlled by the servo system signal of the servo motor 121. The contraction speed of the hydraulic cylinder 151 is twice its extension speed. The right end of the telescopic rod of the hydraulic cylinder 151 is fixedly connected to the extension rod 152, and the extension rod 152 is fixedly connected to the left end of the adjacent piston 143 respectively.

[0042] The working process of Example 2 is as follows: The initial state of the hydraulic cylinder 151 and the distribution pipe 122 is: The telescopic piece of the front hydraulic cylinder 151 is extended the longest, and its corresponding piston 143 is located at the rightmost side of the butt joint 142. The feed inclined tube 111 corresponding to the butt joint 142 is not interconnected with the distribution tube 122, that is, the opening structure of the distribution tube 122 is not interconnected with the feed inclined tube 111, that is, the tube wall of the distribution tube 122 blocks the opening structure of the sealing tube 112 at the corresponding position of the feed inclined tube 111; the telescopic piece of the upper hydraulic cylinder 151 is in the middle position in the cylinder, and its corresponding piston 143 is located between the temporary storage tube 141 and the butt joint 142, and the feed inclined tube 111 corresponding to the butt joint 142 is interconnected with the opening structure of the distribution tube 122, that is, the opening structure of the distribution tube 122 is interconnected with the opening structure of the sealing tube 112 at the corresponding position of the feed inclined tube 111. The telescopic part of the rear hydraulic cylinder 151 is the shortest when it is retracted, and its corresponding piston 143 is at the leftmost side of the temporary storage tube 141. The feeding inclined tube 111 corresponding to the docking tube 142 is not interconnected with the distribution tube 122, that is, the opening structure of the distribution tube 122 is not interconnected with the feeding inclined tube 111, that is, the tube wall of the distribution tube 122 blocks the opening structure of the sealing tube 112 at the corresponding position of the feeding inclined tube 111; the initial state of the distribution tube 122 is that its opening structure is facing upward, and the angle of the initial state of the distribution tube 122 is set to 0 degrees by the servo system, and the center angles of the opening structures of each sealing tube 112 are 120 degrees to each other, that is, when the servo motor 121 drives the distribution tube 122 to rotate a certain angle, the corresponding hydraulic cylinder 151 can be controlled to perform pumping and suction work.

[0043] As in the initial state of the hydraulic cylinder 151 mentioned above, the concrete conveying mechanism of the concrete wet spraying trolley is started. After the servo motor 121 is started, the servo system of the servo motor 121 will control itself and the hydraulic cylinder 151 to perform periodic motion. The three groups of hydraulic cylinders 151 will perform periodic work at the same time, and the distribution pipe 122 will also rotate clockwise.

[0044] The working process of the hydraulic cylinder 151 after starting the servo motor 121 is as follows: The front hydraulic cylinder 151 will begin to enter the contraction stroke. The speed of the hydraulic cylinder 151 in the contraction stroke is twice the extension speed. At this time, the front hydraulic cylinder 151 will drive the piston 143 corresponding to its position to suck concrete. At this time, the pipe wall of the distribution pipe 122 blocks the opening structure of the sealing pipe 112 at the corresponding position of the feeding inclined pipe 111; at the same time, the upper hydraulic cylinder 151 will begin to enter the extension process. At this time, the upper hydraulic cylinder 151 will drive the piston 143 corresponding to its position to pump concrete. At this time, the opening structure of the distribution pipe 122 and the sealing pipe 112 corresponding to the docking pipe 142 at this position are blocked. The opening structures are interconnected, that is, the opening structure of the distribution pipe 122 is interconnected with the opening structure of the sealing pipe 112 at the corresponding position of the feeding inclined pipe 111; at the same time, the rear hydraulic cylinder 151 is in a standby state until the servo motor 121 drives the opening structure of the distribution pipe 122 to face the angle corresponding to the opening structure of the sealing pipe 112 at the position, and the rear hydraulic cylinder 151 will start to enter the concrete pumping operation; if the concrete conveying mechanism of the concrete wet spraying trolley has just started to operate, the two hydraulic cylinders 151 in the pumping operation will be in a no-load state, and the hydraulic cylinder 151 in the concrete absorbing operation will be in a absorbing state.

[0045] The working process of the distribution pipe 122 after starting the servo motor 121 is as follows: The servo motor 121 will drive the distribution pipe 122 to rotate clockwise. When the distribution pipe 122 rotates clockwise from the initial state to a certain angle, the opening structure of the distribution pipe 122 begins to align with the opening structure of the sealing pipe 112 corresponding to the position of the rear hydraulic cylinder 151. The rear hydraulic cylinder 151 will be controlled by the servo system angle to start pumping concrete. At this time, the upper and rear hydraulic cylinders 151 will simultaneously pump concrete, and the fixed size of the opening structure of the distribution pipe 122 controls the amount of concrete pumped. When the opening structure of the distribution pipe 122 rotates to a position away from the upper hydraulic cylinder 151, the upper hydraulic cylinder 151 will start pumping concrete. When the corresponding sealing tube 112 opening structure is set, at this time, the upper hydraulic cylinder 151 is extended to the longest, and the upper hydraulic cylinder 151 has completed pumping and entered the state of contraction to absorb concrete. At this time, the telescopic part of the rear hydraulic cylinder 151 is in the middle position in its cylinder. Subsequently, the distribution pipe 122 continues to rotate, and the opening structure of the distribution pipe 122 begins to rotate until it only maintains communication with the sealing tube 112 opening structure corresponding to the position of the rear hydraulic cylinder 151; when the distribution pipe 122 continues to rotate until its opening structure corresponds to the sealing tube 112 opening structure corresponding to the position of the front hydraulic cylinder 151, the servo system will control the angle through The front hydraulic cylinder 151 begins to enter the pumping state. At this time, the rear and front hydraulic cylinders 151 will simultaneously perform concrete pumping work. When the opening structure of the distribution pipe 122 rotates to disengage from the opening structure of the sealing pipe 112 corresponding to the position of the rear hydraulic cylinder 151, the rear hydraulic cylinder 151 is extended to the maximum. At this time, the rear hydraulic cylinder 151 completes the material pumping and enters the contraction state to absorb concrete. At this time, the telescopic part of the front hydraulic cylinder 151 is in the middle position in the cylinder. Subsequently, the distribution pipe 122 continues to rotate, and the opening structure of the distribution pipe 122 begins to rotate to only correspond to the position of the front hydraulic cylinder 151. The opening structure of the sealing tube 112 remains interconnected; when the distribution tube 122 continues to rotate until its opening structure corresponds to the opening structure of the sealing tube 112 corresponding to the position of the upper hydraulic cylinder 151, the servo system will control the upper hydraulic cylinder 151 through the angle to start pumping. At this time, the front and upper hydraulic cylinders 151 will simultaneously perform concrete pumping work; when the opening structure of the distribution tube 122 rotates to be separated from the opening structure of the sealing tube 112 corresponding to the position of the front hydraulic cylinder 151, at this time, the front hydraulic cylinder 151 is extended the longest, and at this time, the front hydraulic cylinder 151 completes pumping and enters the state of contraction to absorb concrete;In this way, at least one of the three groups of hydraulic cylinders 151 pumps and absorbs concrete in the cycle. In this way, the concrete through the output pipe 10 can achieve the purpose of continuity, and the pumping will not be disconnected due to the switching of the pipeline. At the same time, the pumping through the hydraulic cylinder 151 is different from the traditional continuous pumping mechanism, which is continuous but not under pressure. Therefore, the concrete conveying mechanism for the concrete wet spraying trolley can achieve the purpose of sufficient and continuous pressure, so that the external spraying pipe can maintain the continuous conveying of concrete slurry when spraying the dehydrating agent and supplying air at the same time, avoiding the waste of the dehydrating agent, and at the same time improving the efficiency of spraying concrete, saving working time, and thus saving energy consumption. ;

[0046] The concrete slurry suction process of the concrete conveying mechanism of the concrete wet spraying trolley: When the opening structure of the distribution pipe 122 is not interconnected with one of the opening structures of the sealing tube 112, the hydraulic cylinder 151 corresponding to the position of the opening structure of the sealing tube 112 will enter a contracted state. At this time, the hydraulic cylinder 151 will drive the piston 143 to move to the left through the extension rod 152, so that the piston 143 absorbs concrete slurry from the silo through the connected temporary storage tube 141, the butt joint tube 142, the three-way pipe 113 and the external pipe 132. The closing cone 135 at this position is not subjected to thrust at this time. At this time, the concrete slurry presses the closing cone 135 downward and is smoothly absorbed into the temporary storage tube 141, the butt joint tube 142 and the three-way pipe 113 at this position. When the hydraulic cylinder 151 shrinks to the end, the concrete slurry is completely absorbed.

[0047] The process of pumping concrete slurry by the concrete conveying mechanism of the concrete wet spraying trolley: When the opening structure of the distribution pipe 122 is interconnected with one of the opening structures of the sealing pipe 112, the hydraulic cylinder 151 corresponding to the position of the opening structure of the sealing pipe 112 will enter an extended state. At this time, the hydraulic cylinder 151 will drive the piston 143 to move to the right through the extension rod 152, so that the piston 143 pushes the concrete slurry into the matching pipe through the connected temporary storage pipe 141, the docking pipe 142, the three-way pipe 113 and the feeding inclined pipe 111, and pumps it out from the output pipe 10. At this time, the closed cone 135 and the force plate 136 at this position are pushed by the concrete moving to the right. At this time, the concrete slurry pushes the closed cone 135 and the force plate 136 upward, so that the closed cone 135 and the sealing ring 133 are pushed out to the sealing ring 133, so that the closed cone 135 and the sealing ring 133 block the expansion pipe 131, so that the concrete slurry will not flow back into the silo.

[0048] The external box 161 can be installed at the bottom of the external silo, and the sealing strip 162 will maintain the seal between the external box 161 and the silo. The mixing component 17 is started, and the mixing component 17 will stir the concrete slurry that is about to enter the external pipe 132 to avoid separation of concrete and water slurry, resulting in pumping difficulties and blockage.

[0049] The double-shaft motor 171 is started, and the double-shaft motor 171 drives the stirring rod 172 to rotate, so that the concrete slurry that is about to enter the external pipe 132 is evenly sucked and pumped. Example 3

[0050] like Figure 3 As shown, it also includes an access device 16, which includes an external box 161, a sealing strip 162 and a mixing component 17. The access device 16 is arranged on the upper side of the external pipe 132. The access device 16 is used to pre-treat the concrete slurry to keep the concrete and water slurry evenly mixed, avoid the separation of the concrete and the water slurry, and make it difficult to pump. The external box 161 is fixedly connected between the upper sides of the external pipe 132, and the external box 161 is interconnected with the three groups of external pipes 132. The sealing strip 162 is fixedly connected to the upper surface of the external box 161. A mixing component 17 is provided in the middle of the external box 161. The mixing component 17 is used to stir the concrete slurry.

[0051] The external box 161 can be installed at the bottom of the external silo, and the sealing strip 162 will maintain the seal between the external box 161 and the silo. The mixing component 17 is started, and the mixing component 17 will stir the concrete slurry that is about to enter the external pipe 132 to avoid separation of concrete and water slurry, resulting in pumping difficulties and blockage.

[0052] like Figure 3 As shown, the mixing assembly 17 includes a dual-axis motor 171 and a stirring rod 172. The dual-axis motor 171 is fixedly connected to the right side of the outer side of the external box body 161, and two groups of stirring rods 172 are fixedly connected to the inside of the external box body 161. The stirring rods 172 are all connected to the output shaft of the dual-axis motor 171.

[0053] The double-shaft motor 171 is started, and the double-shaft motor 171 drives the stirring rod 172 to rotate, so that the concrete slurry that is about to enter the external pipe 132 is evenly sucked and pumped.

[0054] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A concrete conveying mechanism for a concrete wet spraying trolley, comprising a fixing frame (1), characterized in that: The fixed frame (1), the number of the fixed frames (1) is two groups, the outer sides of the fixed frames (1) are fixedly connected to the external frames (2), the right sides of the fixed frames (1) are fixedly connected to the first angle frame (3), the middle parts of the fixed frames (1) are fixedly connected to the second angle frame (4), the left sides of the fixed frames (1) are fixedly connected to the third angle frame (5), the first angle frame (3), the second angle frame (4) and the third angle frame (5) are fixedly connected to the interconnection tube (6), the right side of the first angle frame (3) is fixedly connected to the fixed tube (7), the right side of the fixed tube (7) is fixedly connected to the installation tube (8), the installation tube (8) is a structure with three openings evenly opened, the right side periphery of the installation tube (8) is fixedly connected to the installation frame (9), and the installation frame (9) is fixedly connected to the output tube (10); A conveying device (11) is provided at each opening structure of the installation pipe (8), the conveying device (11) is respectively interconnected with the opening structure of the installation pipe (8), and the conveying device (11) is used to convey concrete slurry; A distribution device (12) is provided at a position between the fixed pipe (7) and the inside of the installation pipe (8); the distribution device (12) and the conveying device (11) are intercommunicationable; the distribution device (12) is used to switch the communication channel with each conveying device (11); the distribution device (12) is used to distribute the input channel of the pumped concrete slurry; The conveying device (11) is provided with a cut-off device (13), the cut-off device (13) is used for one-way switching controlled by the pressure of the flowing concrete slurry, and the cut-off device (13) is used for connecting to an external concrete slurry source; A temporary storage device (14) is provided between the first corner frame (3) and the second corner frame (4), and the temporary storage devices (14) are provided in three groups. The temporary storage devices (14) are respectively connected to adjacent conveying devices (11) and are interconnected; The third corner frame (5) is provided with a pushing device (15), and the pushing device (15) has three groups. The pushing devices (15) are respectively connected to the adjacent temporary storage devices (14), and the pushing devices (15) are used to absorb and push concrete slurry.

2. A concrete conveying mechanism for a concrete wet spraying trolley as claimed in claim 1, characterized in that: The conveying device (11) comprises a feed inclined tube (111), wherein the feed inclined tube (111) has three groups, and the feed inclined tubes (111) are respectively mounted at the opening structure on the outer periphery of the mounting tube (8). The feed inclined tube (111) is in communication with the interior of the mounting tube (8). A sealing tube (112) is fixedly connected to the interior of the mounting tube (8). The sealing tube (112) is a structure with three holes evenly opened. The opening structure of the sealing tube (112) is in communication with the opening structure of the mounting tube (8). The left ends of the feed inclined tubes (111) are fixedly connected to three-way tubes (113). The intercepting devices (13) are respectively arranged on the upper sides of the three-way tubes (113). The temporary storage devices (14) are respectively connected to the left sides of the three-way tubes (113).

3. A concrete conveying mechanism for a concrete wet spraying trolley as claimed in claim 2, characterized in that: The distribution device (12) comprises a servo motor (121), the servo motor (121) is fixedly connected inside the fixed tube (7), a distribution tube (122) is fixedly connected to the output shaft of the servo motor (121), the distribution tube (122) extends rightwards out of the right side of the mounting tube (8), the distribution tube (122) is a structure with a rectangular hole, a bearing (123) is fixedly connected to the outer periphery of the area where the distribution tube (122) extends rightwards out of the mounting tube (8), and the outer side of the bearing (123) is fixedly connected to the mounting frame (9).

4. A concrete conveying mechanism for a concrete wet spraying trolley as claimed in claim 3, characterized in that: The intercepting device (13) comprises an expansion tube (131). The expansion tube (131) is provided in three groups. The expansion tubes (131) are respectively fixedly connected to the upper side of the three-way tube (113). The upper side of the expansion tube (131) is fixedly connected to an external tube (132). The inner side of the expansion tube (131) is fixedly connected to a sealing ring (133). The upper inner side of the expansion tube (131) is fixedly connected to a telescopic tube sleeve (134). The lower end of the moving rod of the telescopic tube sleeve (134) is fixedly connected to a closed cone (135). The closed cone (135) can be in contact with the inner ring of the sealing ring (133) for sealing. The lower side of the closed cone (135) is fixedly connected to a force-bearing plate (136).

5. The concrete conveying mechanism for a concrete wet spraying trolley according to claim 4, characterized in that: The temporary storage device (14) comprises temporary storage tubes (141). The temporary storage tubes (141) are three in number. The temporary storage tubes (141) are respectively installed between the first angle frame (3) and the second angle frame (4). The positions of the temporary storage tubes (141) respectively correspond to the positions of the three-way pipes (113). Three butt-joint pipes (142) are evenly and fixedly connected to the right side of the first angle frame (3). The butt-joint pipes (142) are respectively connected to adjacent temporary storage tubes (141) and the three-way pipes (113) and are interconnected. The temporary storage tubes (141) are each sleeved with a piston (143). The pistons (143) are respectively connected to the pushing device (15).

6. A concrete conveying mechanism for a concrete wet spraying trolley as claimed in claim 5, characterized in that: The pushing device (15) comprises a hydraulic cylinder (151), wherein the hydraulic cylinders (151) are provided in three groups, and the hydraulic cylinders (151) are respectively fixedly connected to the third angle frame (5), and the position of each hydraulic cylinder (151) corresponds to the position of an adjacent temporary storage tube (141). The right end of the telescopic rod of the hydraulic cylinder (151) is fixedly connected to an extension rod (152), and the extension rod (152) is respectively fixedly connected to the left end of the adjacent piston (143).

7. A concrete conveying mechanism for a concrete wet spraying trolley as claimed in claim 6, characterized in that: It also comprises an access device (16), the access device (16) being arranged on the upper side of the external pipe (132), the access device (16) being used to pre-treat concrete slurry, an external box body (161) being fixedly connected between the upper sides of the external pipe (132), the external box body (161) being interconnected with the three groups of external pipes (132), a sealing strip (162) being fixedly connected to the upper surface of the external box body (161), a mixing assembly (17) being arranged in the middle of the external box body (161), the mixing assembly (17) being used to stir concrete slurry.

8. The concrete conveying mechanism for a concrete spraying trolley according to claim 7, characterized in that: The mixing assembly (17) comprises a dual-axis motor (171) and a stirring rod (172); the dual-axis motor (171) is fixedly connected to the right side of the outer side of the external box (161); two groups of stirring rods (172) are fixedly connected inside the external box (161); and the stirring rods (172) are both connected to the output shaft of the dual-axis motor (171).

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