Transportation device capable of adjusting flowing property of concrete

Abstract

The invention discloses a transportation device capable of adjusting the flowing property of concrete, and the transportation device comprises a truck chassis which is used for walking on the ground; the mixing drum is rotationally arranged on the truck chassis, a switch opening is formed in the middle of the mixing drum, and a switch door is installed in the switch opening; the supporting frame is arranged on the truck chassis; the fixing ring is arranged on the supporting frame, a liquid injection hole is formed in the fixing ring in a penetrating mode, and a liquid spraying hole communicated with the liquid injection hole is formed in the opening and closing door; the sliding rail is used for the fixed ring to slide; the additive box is arranged on the truck chassis, and the lower end of the additive box communicates with the liquid injection hole through a connecting pipe. By arranging the concrete transport vehicle capable of intermittently injecting the additive into the mixing drum, the same amount of additive can be injected into the mixing drum every time the mixing drum rotates by a circle, and the additive and concrete are mixed again, so that the hydration phenomenon of the concrete is avoided, the flowability of the concrete is ensured, and the construction requirement is met; the quality of the concrete is improved.

Description

Technical Field

[0001] The invention relates to the field of concrete transportation, and in particular to a transportation device capable of adjusting the flow performance of concrete. Background Art

[0002] A concrete truck, also known as a mixer truck or cement mixer truck, is a special vehicle used to transport concrete. It consists of a truck chassis and a rotating cylindrical container mounted on the chassis. This container is used to load, transport and unload concrete. During transportation, in order to prevent the concrete from solidifying, the container will rotate slowly to maintain the fluidity of the concrete.

[0003] The fluidity of concrete mixture is an important performance to meet the requirements of construction site construction. The current ready-mixed concrete materials are complex and changeable. As time goes by, the fluidity of the mixture changes due to cement hydration or the slow release of admixtures, which makes it impossible to meet the construction requirements and ultimately affects the quality of the construction project. During the transportation of traditional concrete, it is impossible to monitor the fluidity of the concrete mixture and make adjustments according to the changes in the fluidity of the mixture, which needs to be improved. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a transportation device capable of adjusting the flow properties of concrete, thereby improving the quality of concrete.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A transportation device capable of adjusting the flow properties of concrete, comprising: Truck chassis, used for traveling on the ground; A mixing drum is rotatably arranged on the truck chassis, a switch hole is arranged in the middle of the mixing drum, and a switch door is installed in the switch hole; A support frame is arranged on the truck chassis; A fixing ring is arranged on the support frame, surrounds the middle part of the mixing drum, and presses the switch door tightly. A liquid injection hole is provided through the fixing ring, and a liquid spray hole for connecting with the liquid injection hole is provided on the switch door. A slide rail is arranged in the middle of the mixing drum and allows the fixing ring to slide; The additive box is arranged on the truck chassis, and the lower end thereof is connected to the liquid injection hole through a connecting pipe.

[0006] In a preferred example, the present invention can be further configured as follows: a piston plate is vertically slidably connected inside the additive box, a sliding frame is arranged on the piston plate and passes through the additive box, a pull rod is vertically arranged on the sliding frame, a counterweight is arranged at the lower end of the pull rod, a ratchet bar is arranged on the side wall, and a pawl that fits with the ratchet bar is arranged on the outer wall of the additive box.

[0007] In a preferred example, the present invention can be further configured as follows: the liquid spray hole includes a main channel and a plurality of branch channels, the main channel is connected to the liquid injection hole, the branch channels are connected to the main channel, and are distributed around the switch door.

[0008] In a preferred example, the present invention can be further configured as follows: a rotating shaft is vertically rotatably connected inside the switch door, a torsion spring is sleeved on the rotating shaft, a cover plate covering the diversion channel is provided on the rotating shaft, and a driving mechanism for controlling the rotation of the rotating shaft is provided on the switch door.

[0009] In a preferred example, the present invention can be further configured as follows: the driving mechanism includes a rotating ring, a driven gear, an inner gear ring, a driving rod, a connecting gear, an outer gear ring, a driving rack and a driving gear, the rotating ring is rotatably connected to the switch door and is distributed on the outside of the rotating shaft, the driven gear is arranged on the rotating shaft, the inner gear ring is arranged on the inner side of the driving ring and is meshed with the driven gear, the driving rod is vertically rotatably arranged at the outer edge position of the switch door, the connecting gear is arranged at the lower end of the driving rod, the outer gear ring is arranged on the outer wall of the driving ring and is meshed with the connecting gear, the driving rack is arranged in a circular arc shape on the support frame, and the driving gear is arranged at the upper end of the driving rod and is meshed with the driving rack.

[0010] In a preferred example, the present invention can be further configured as follows: the fixing ring includes a pair of ring bodies, one end of the ring body is provided with a hook, and the other end is provided with a hole for the hook to pass through, and the outer wall of the ring body is provided with a disassembly hole aligned with the hole.

[0011] In a preferred example, the present invention can be further configured as follows: the slide rail includes a long rail and a short rail, the long rail is arranged on the outer wall of the mixing drum, the short rail is arranged on the outer wall of the switch door, blocks are arranged at both ends of the short rail, and slots for embedding the blocks are arranged at both ends of the long rail.

[0012] In a preferred example, the present invention can be further configured as follows: a temperature sensor and a humidity sensor are provided on the inner side wall at the center position of the switch door.

[0013] In summary, the present invention has the following beneficial effects: 1. By setting up a concrete transport vehicle that can intermittently inject additives into the mixing drum, an equal amount of additives can be injected into the mixing drum every time the mixing drum rotates one circle, and the additives and concrete are remixed together to avoid hydration of the concrete, ensure the fluidity of the concrete, meet construction requirements, and improve the quality of the concrete; 2. By providing a cover that can be opened when the switch door is rotated to the upper position, the additive can be sprayed on the concrete from top to bottom, which is convenient for achieving sufficient mixing of the two. At the same time, the cover can be automatically closed, so that when the switch door is rotated to the lower position, the cover can block the spray hole to avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of Example 1; Figure 2 is a schematic structural diagram of a mixing drum of Example 1; Figure 3 is a schematic structural diagram of a fixing ring and a slide rail of Embodiment 1; Figure 4 is a schematic structural diagram of a switch door in Example 1; Figure 5 is a schematic diagram of the internal structure of the switch door of Example 1; Figure 6 is a schematic structural diagram of the additive box of Example 1; Figure 7 It is a structural schematic diagram of Example 2.

[0015] Figure numerals: 1, truck chassis; 11, torque sensor; 2, mixing drum; 21, switch port; 22, switch door; 23, temperature sensor; 24, humidity sensor; 25, spray hole; 26, main channel; 27, branch channel; 3, support frame; 4, fixing ring; 41, ring body; 42, hook; 43, clamping hole; 44, disassembly hole; 45, injection hole; 5, slide rail; 51, long rail; 52, short rail; 53, clamping block; 5 4. Slot; 6. Additive box; 61. Connecting pipe; 62. Piston plate; 63. Sliding frame; 64. Pull rod; 65. Counterweight; 66. Ratchet bar; 67. Ratchet pawl; 68. Solenoid valve; 7. Rotating shaft; 71. Torsion spring; 72. Cover plate; 8. Driving mechanism; 81. Rotating ring; 82. Driven gear; 83. Internal gear ring; 84. Driving rod; 85. Connecting gear; 86. External gear ring; 87. Driving rack; 88. Driving gear. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings. Example

[0017] like Figure 1 , Figure 2 As shown, a transport device capable of adjusting the flow properties of concrete includes a truck chassis 1, a mixing drum 2, a support frame 3, a fixing ring 4, a slide rail 5 and an additive box 6.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, the truck chassis 1 is used for walking on the ground, and the mixing drum 2 is rotatably arranged on the truck chassis 1. A switch hole 21 is arranged in the middle of the mixing drum 2, and a switch door 22 is installed in the switch hole. A temperature sensor 23 and a humidity sensor 24 are arranged on the inner side wall at the center of the switch door 22 to monitor the temperature and humidity of the concrete in the mixing drum 2.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the support frame 3 is arranged on the truck chassis 1, and the fixing ring 4 is arranged on the support frame 3, and surrounds the middle position of the mixing drum 2, and presses the switch door 22. The fixing ring 4 includes a pair of ring bodies 41, one end of the ring body 41 is provided with a hook 42, and the other end is provided with a hole 43 for the hook 42 to pass through, and the outer wall of the ring body 41 is provided with a disassembly hole 44 aligned with the hole 43.

[0020] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a liquid injection hole 45 is provided on one of the ring bodies 41 connected to the support frame 3, and a liquid spray hole 25 for connecting the liquid injection hole 45 is provided on the switch door 22. The liquid spray hole 25 includes a main flow channel 26 and a plurality of branch flow channels 27. The main flow channel 26 is used to connect the liquid injection hole 45 when the switch door 22 rotates to the upper side. The branch flow channels 27 are connected to the main flow channel 26 and are distributed around the switch door 22.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the slide rail 5 is arranged at the middle position of the mixing drum 2 and is provided for the sliding movement of the fixing ring 4. The slide rail 5 includes a long rail 51 and a short rail 52. The long rail 51 is arranged on the outer wall of the mixing drum 2, and the short rail 52 is arranged on the outer wall of the switch door 22. Blocks 53 are arranged at both ends of the short rail 52, and slots 54 for the block 53 to be embedded are arranged at both ends of the long rail 51.

[0022] like Figure 1 , Figure 6As shown, the additive box 6 is arranged on the truck chassis 1, and the lower end is connected to the injection hole 45 through the connecting pipe 61, and a piston plate 62 is vertically slidably connected in the additive box 6, and a sliding frame 63 is arranged on the piston plate 62 and penetrates the additive box 6. A pull rod 64 is vertically arranged on the sliding frame 63, and a counterweight block 65 is arranged at the lower end of the pull rod 64, and a ratchet bar 66 is arranged on the side wall, and a ratchet 67 that fits with the ratchet bar 66 is arranged on the outer wall of the additive box 6.

[0023] When the concrete is transported, the mixing drum 2 is in a slow rotating state, and the mixing drum 2 drives the switch door 22 to rotate synchronously, and at this time, the fixed ring 4 slides relative to the slide rail 5. When the switch door 22 moves to the upper end position, the injection hole 45 on the fixed ring 4 is aligned with the spray hole 25 on the switch door 22. At this time, the additive is injected into the spray hole 25 along the injection hole 45, and first enters the main flow channel 26, and then sprayed out along multiple branch channels 27.

[0024] When the mixing drum 2 continues to rotate, the switch door 22 rotates synchronously until the injection hole 45 on the fixing ring 4 is separated from the spray hole 25 on the switch door 22, and the additive injection operation in the mixing drum 2 is completed, thereby enabling intermittent additive replenishment in the mixing drum 2.

[0025] Therefore, by setting up a concrete transport vehicle that can intermittently inject additives into the mixing drum 2, an equal amount of additives can be injected into the mixing drum 2 every time the mixing drum 2 rotates one circle, and the additives and concrete are remixed together to offset the water loss caused by the increase in temperature, prevent the concrete from becoming more viscous, ensure the fluidity of the concrete, and ensure the quality of the concrete.

[0026] When the additive box 6 is working, the counterweight 65 pulls the pull rod 64 and the sliding frame 63 to move downward, and causes the piston plate 62 to slide downward, thereby pressurizing the additive in the additive box 6 and allowing the additive to be sprayed out smoothly.

[0027] At the same time, during the sliding process of the pull rod 64, under the cooperation of the ratchet bar 66 and the pawl 67, the pull rod 64 can only move downward but not upward, preventing the piston plate 62 from shaking in the additive box 6 and ensuring the stable supply of additives.

[0028] After the concrete is transported, the switch door 22 needs to be disassembled. At this time, the hook 42 is controlled to disengage from the clamping hole 43 through the disassembly hole 44 to realize the disassembly of the fixing ring 4, and then the switch door 22 can be disassembled, so that the switch plate and the short track 52 can be removed together. At this time, the inner wall of the mixing drum 2 can be flushed, and the waste water is discharged along the switch port 21, meeting the flushing operation of the mixing drum 2.

[0029] After flushing, the switch door 22 is installed, and the block 53 on the short track 52 is embedded in the slot 54 on the long track 51 to achieve the limit fixation of the switch door 22, and then the switch door 22 is fixed. Then the fixing ring 4 is installed to reinstall the switch door 22.

[0030] like Figure 4 , Figure 5 As shown, a rotating shaft 7 is vertically rotatably connected inside the switch door 22 , a torsion spring 71 is sleeved on the rotating shaft 7 , a cover plate 72 covering the diversion channel 27 is arranged on the rotating shaft 7 , and a driving mechanism 8 for controlling the rotation of the rotating shaft 7 is arranged on the switch door 22 .

[0031] like Figure 4 , Figure 5 As shown, the driving mechanism 8 includes a rotating ring 81 , a driven gear 82 , an inner gear ring 83 , a driving rod 84 , a connecting gear 85 , an outer gear ring 86 , a driving rack 87 and a driving gear 88 .

[0032] like Figure 4 , Figure 5 As shown, the rotating ring 81 is rotatably connected to the switch door 22 and is distributed on the outer side of the rotating shaft 7. The driven gear 82 is arranged on the rotating shaft 7. The inner gear ring 83 is arranged on the inner side of the driving ring and meshes with the driven gear 82.

[0033] like Figure 4 , Figure 5 As shown, the driving rod 84 is vertically rotatably arranged at the outer edge of the switch door 22, and the connecting gear 85 is arranged at the lower end of the driving rod 84. The outer gear ring 86 is arranged on the outer wall of the driving ring and meshes with the connecting gear 85. The driving rack 87 is arranged on the support frame 3 in an arc shape, and the driving gear 88 is arranged at the upper end of the driving rod 84 and meshes with the driving rack 87.

[0034] When the mixing drum 2 drives the switch door 22 to gradually rotate to the uppermost position, the driving rack 87 gradually meshes with the driving gear 88 and controls the driving gear 88 to rotate. At this time, the driving gear 88 drives the driving rod 84 and the connecting gear 85 to rotate synchronously. Subsequently, under the cooperation of the connecting gear 85 and the outer gear ring 86, the rotating ring 81 is controlled to rotate, and the rotating ring 81 drives the inner gear ring 83 to rotate synchronously.

[0035] Then the inner gear ring 83 drives the driven gear 82 and the rotating shaft 7 to rotate slowly, and the rotating shaft 7 drives the cover plate 72 to gradually separate from the branch channel 27, thereby realizing the opening control of the branch channel 27, and finally when the switch door 22 moves to the uppermost position, it is in a fully open state, allowing the additive to be sprayed out.

[0036] Then, as the mixing drum 2 rotates, the driving rack 87 gradually disengages from the driving gear 88. At this time, under the elastic force of the torsion spring 71, the rotating shaft 7 will be driven to rotate in the opposite direction, so that the cover plate 72 covers the branch channel 27. At the same time, under the cooperation of the rotating ring 81, other components are automatically reset. Then, when the mixing drum 2 rotates, the concrete will cover the cover plate 72 and will not enter the spray hole 25, avoiding blockage. Example

[0037] As shown in FIG7 , a transport device capable of adjusting the flow properties of concrete is provided. A torque sensor 11 is provided between the driving source on the truck chassis 1 and the mixing drum 2 . A solenoid valve 68 is provided on the connecting pipe 61 on the additive box 6 to control the opening and closing of the connecting pipe 61 .

[0038] Therefore, when the torque value of the torque sensor 11 increases, it proves that the viscosity of the concrete in the mixing drum 2 increases, and when the torque value of the torque sensor 11 decreases, it proves that the viscosity of the concrete in the mixing drum 2 decreases.

[0039] At this time, the staff can open and close the solenoid valve 68 according to actual needs, so that the additives in the additive box 6 can be injected into the mixing drum 2 according to needs, thereby realizing the regulation of the viscosity of the concrete in the mixing drum 2 and ensuring the fluidity of the concrete. A receiver and a controller connected to the torque sensor 11 can also be added to the solenoid valve 68, and the solenoid valve 68 can be automatically opened and closed using the detected data value. A remote transmission mechanism can also be added to remotely transmit the detected values, and the solenoid valve 68 can be manually or automatically controlled according to the remotely transmitted data.

[0040] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A transport device capable of adjusting the flow properties of concrete, characterized in that: include: A truck chassis (1) for traveling on the ground; A mixing drum (2) is rotatably mounted on the truck chassis (1), a switch opening (21) is provided at the middle of the mixing drum (2), and a switch door (22) is installed in the switch opening; A support frame (3) is arranged on the truck chassis (1); A fixing ring (4) is arranged on the support frame (3), surrounds the middle position of the mixing drum (2), and presses the switch door (22); a liquid injection hole (45) is provided through the fixing ring (4), and a liquid injection hole (25) for communicating with the liquid injection hole (45) is provided on the switch door (22); A slide rail (5) is arranged at the middle of the mixing drum (2) and is used for the sliding movement of the fixing ring (4); The additive box (6) is arranged on the truck chassis (1), and the lower end thereof is connected to the liquid injection hole (45) via a connecting pipe (61).

2. A transport device capable of adjusting the flow properties of concrete according to claim 1, characterized in that: A piston plate (62) is vertically slidably connected inside the additive box (6), a sliding frame (63) penetrating the additive box (6) is arranged on the piston plate (62), a pull rod (64) is vertically arranged on the sliding frame (63), a counterweight block (65) is arranged at the lower end of the pull rod (64), and a ratchet bar (66) is arranged on the side wall, and a ratchet pawl (67) that fits with the ratchet bar (66) is arranged on the outer wall of the additive box (6).

3. A transport device capable of adjusting the flow properties of concrete according to claim 1, characterized in that: The liquid spray hole (25) comprises a main flow channel (26) and a plurality of branch flow channels (27), wherein the main flow channel (26) is connected to the liquid injection hole (45), and the branch flow channels (27) are connected to the main flow channel (26) and are distributed around the switch door (22).

4. A transport device capable of adjusting the flow properties of concrete according to claim 3, characterized in that: A rotating shaft (7) is vertically rotatably connected inside the switch door (22), a torsion spring (71) is sleeved on the rotating shaft (7), a cover plate (72) covering the branch channel (27) is arranged on the rotating shaft (7), and a driving mechanism (8) for controlling the rotation of the rotating shaft (7) is arranged on the switch door (22).

5. A transport device capable of adjusting the flow properties of concrete according to claim 4, characterized in that: The driving mechanism (8) comprises a rotating ring (81), a driven gear (82), an inner gear ring (83), a driving rod (84), a connecting gear (85), an outer gear ring (86), a driving rack (87) and a driving gear (88); the rotating ring (81) is rotatably connected to the switch door (22) and is distributed on the outer side of the rotating shaft (7); the driven gear (82) is arranged on the rotating shaft (7); the inner gear ring (83) is arranged on the inner side of the driving ring and is connected to the driven gear ( 82) is meshed with each other, the driving rod (84) is vertically rotatably arranged at the outer edge position of the switch door (22), the connecting gear (85) is arranged at the lower end of the driving rod (84), the outer gear ring (86) is arranged on the outer wall of the driving ring and is meshed with the connecting gear (85), the driving rack (87) is arranged on the supporting frame (3) in an arc shape, and the driving gear (88) is arranged at the upper end of the driving rod (84) and is meshed with the driving rack (87).

6. A transport device capable of adjusting the flow properties of concrete according to claim 1, characterized in that: The fixing ring (4) comprises a pair of ring bodies (41), one end of the ring body (41) is provided with a hook (42), and the other end is provided with a hole (43) for the hook (42) to pass through, and the outer wall of the ring body (41) is provided with a disassembly hole (44) aligned with the hole (43).

7. A transport device capable of adjusting the flow properties of concrete according to claim 6, characterized in that: The slide rail (5) comprises a long rail (51) and a short rail (52); the long rail (51) is arranged on the outer wall of the mixing drum (2); the short rail (52) is arranged on the outer wall of the switch door (22); blocks (53) are arranged at both ends of the short rail (52); and slots (54) for the blocks (53) to be embedded are arranged at both ends of the long rail (51).

8. The transport device capable of adjusting the flow properties of concrete according to claim 1, characterized in that: The inner side wall at the center of the switch door (22) is provided with a temperature sensor (23) and a humidity sensor (24).

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