Concrete pump with double discharge ports

Abstract

The utility model discloses a concrete pump with double discharge ports, and relates to the technical field of concrete pumps. A double-discharge-port concrete pump comprises a pump body with a discharge hole, and further comprises a cylindrical pipe which is connected with the discharge hole through a connecting part, a square pipe is fixedly connected to the tail end of the cylindrical pipe, and two discharge pipes which are obliquely arranged are fixedly connected to the tail end of the square pipe; the rotating shaft is rotationally connected into the square pipe and located between the two discharging pipes, the outer wall of the rotating shaft is fixedly connected with a partition plate, the partition plate divides the interior of the square pipe into two channels, the two discharging pipes are located at the output ends of the two channels respectively, and an adjusting part for driving the rotating shaft to rotate is arranged on the square pipe; due to the arrangement of the two discharging pipes, the pump body is more convenient to use, the efficiency is higher, the two discharging pipes can discharge concrete with different flows, and the use is more flexible.

Description

Technical Field

[0001] This utility model belongs to the field of concrete pump technology, specifically, it relates to a concrete pump with dual discharge ports. Background Technology

[0002] A concrete pump is a construction device that uses pipelines to transport concrete under pressure. Equipped with specialized pipelines, it can continuously transport concrete horizontally and vertically. It is one of the more ideal concrete conveying equipment currently available, combining ready-mixed concrete production with pumping construction. Using concrete mixer trucks for intermediate transport, it can achieve continuous pumping and pouring of concrete. It is used for concrete conveying in large-scale concrete projects.

[0003] In the existing technology, conventional concrete pumps only have one concrete outlet. Therefore, under construction conditions that require symmetrical pouring and have limited space, conventional concrete pumps need to frequently change construction positions to ensure process requirements. This will seriously affect the concrete pouring efficiency and indirectly affect the construction cycle. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a dual-outlet concrete pump that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A dual-outlet concrete pump includes a pump body with a discharge port, and further includes: a cylindrical tube connected to the discharge port via a connecting part, wherein a square tube is fixedly connected to the end of the cylindrical tube, and two inclined discharge pipes are fixedly connected to the end of the square tube; a rotating shaft rotatably connected inside the square tube and located between the two discharge pipes, wherein a partition plate is fixedly connected to the outer wall of the rotating shaft, the partition plate dividing the inside of the square tube into two channels, the two discharge pipes being located at the output ends of the two channels respectively, and an adjustment part for driving the rotating shaft to rotate is provided on the square tube.

[0007] Preferably, the connecting part includes an annular groove disposed in the discharge port, the input end of the cylindrical tube is inserted into the annular groove, the outer wall of the cylindrical tube is fixedly connected to a flange that abuts against the outer wall of the pump body, and the outer wall of the pump body is provided with a clamping part for clamping the flange.

[0008] Furthermore, the clamping part includes an externally threaded pipe fixedly connected to the outer wall of the pump body, an internally threaded pipe being threadedly connected to the outer wall of the externally threaded pipe, a plurality of circumferentially distributed pressure blocks being fixedly connected to the inner wall of the internally threaded pipe, a protrusion corresponding to the position of the pressure block being fixedly connected to the outer wall of the flange, the pressure block being pressed against the surface of the protrusion, and a handle being fixedly connected to the outer wall of the internally threaded pipe.

[0009] Furthermore, the cross-sectional shape of both the pressure block and the protrusion is trapezoidal or triangular, and the contact surfaces of both the pressure block and the protrusion are provided with anti-slip textures.

[0010] Preferably, the adjusting part includes a worm gear rotatably connected to the outer wall of the square tube, a worm wheel that meshes with the worm gear is fixedly installed at one end of the rotating shaft, and a crank handle is fixedly installed at one end of the worm gear.

[0011] Preferably, a backflush pipe is fixedly connected to the outer wall of the square tube, and a valve is fixedly installed on the backflush pipe. The output ends of the two backflush pipes are respectively connected to two channels of the square tube.

[0012] Furthermore, the output ends of the two backflush tubes are inclined toward the inlet of the discharge tube.

[0013] Furthermore, an upwardly arched dust baffle is fixedly connected to the pump body, and both the cylindrical tube and the internally threaded tube are located below the dust baffle.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0015] 1. This utility model uses a pump body to discharge concrete from the discharge hole into a cylindrical pipe, then into a square pipe, and finally out through two inclined discharge pipes. The two discharge pipes make the pump body more convenient to use and more efficient.

[0016] 2. This utility model uses a crank handle to rotate the worm gear, which in turn causes the partition plate to swing. When the movable end of the partition plate is pressed against the inner wall of the square tube, one of the discharge pipes can discharge concrete. When the other discharge pipe needs to discharge concrete, the worm gear can be rotated in the opposite direction to complete the adjustment work conveniently and efficiently. It is very convenient to use. Moreover, when it is necessary to discharge concrete with different flow rates from the two discharge pipes, the partition plate can be tilted at different angles, making it more flexible in use.

[0017] 3. This utility model allows for quick replacement of the discharge pipe and square pipe by rotating the handle of the internal threaded tube. When the pressure block and the protrusion are completely misaligned, the cylindrical tube can be pulled out of the annular groove. Then, the cylindrical tube to be replaced can be reset into the annular groove, and the internal threaded tube can be reversed to reset it. This makes the use more flexible.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] In the attached diagram:

[0020] Figure 1 This is a first-view isometric structural diagram of a dual-outlet concrete pump proposed in this utility model.

[0021] Figure 2 This is a second-view isometric structural diagram of a dual-outlet concrete pump proposed in this utility model.

[0022] Figure 3 This is a partial isometric structural diagram of the pump body of a double-outlet concrete pump proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the square tube isometric structure of a double-outlet concrete pump proposed in this utility model.

[0024] Figure 5 This is a cross-sectional axonometric structural diagram of a square pipe of a double-outlet concrete pump proposed in this utility model.

[0025] Figure 6 This is a schematic diagram of the internal threaded pipe structure of a double-outlet concrete pump proposed in this utility model.

[0026] In the diagram: 1. Pump body; 2. Cylindrical tube; 3. Square tube; 4. Discharge tube; 5. Shaft; 6. Divider plate; 7. Worm gear; 8. Worm wheel; 9. Handle; 10. Backflush tube; 11. Discharge hole; 12. Annular groove; 13. Flange; 14. Protrusion; 15. Internally threaded tube; 16. Externally threaded tube; 17. Pressure block; 18. Handle; 19. Valve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] Example: Refer to Figures 1-6A dual-discharge concrete pump includes a pump body 1 with a discharge hole 11, the pump body 1 being a concrete pump capable of discharging concrete through the discharge hole 11. It also includes: a cylindrical tube 2 connected to the discharge hole 11 via a connecting part; a square tube 3 fixedly connected to the end of the cylindrical tube 2; the square tube 3 having a square cross-section; and two inclined discharge pipes 4 fixedly connected to the end of the square tube 3; a rotating shaft 5 rotatably connected within the square tube 3 and located between the two discharge pipes 4; a partition plate 6 fixedly connected to the outer wall of the rotating shaft 5, dividing the square tube 3 into two channels; the two discharge pipes 4 being located at the output ends of the two channels; an adjusting part on the square tube 3 for driving the rotating shaft 5 to rotate; the adjusting part including a worm gear 7 rotatably connected to the outer wall of the square tube 3; a worm wheel 8 fixedly installed at one end of the rotating shaft 5, meshing with the worm gear 7; and a crank handle 9 fixedly installed at one end of the worm gear 7.

[0029] Specifically, during use, the pump body 1 discharges concrete from the discharge hole 11 into the cylindrical pipe 2, then into the square pipe 3, and finally out through two inclined discharge pipes 4. The two discharge pipes 4 make the pump body 1 more convenient and efficient to use. When only one discharge pipe 4 needs to discharge concrete, the worm gear 7 is rotated by the crank handle 9. The worm gear 7 drives the rotating shaft 5 to rotate through the worm wheel 8. The rotating shaft 5 drives the partition plate 6 to swing. When the movable end of the partition plate 6 presses against the inner wall of the square pipe 3, the partition plate 6 blocks one of the channels in the square pipe 3, thus blocking the discharge pipe 4 connected to the current channel, allowing one of the discharge pipes 4 to discharge concrete. When the other discharge pipe 4 needs to discharge concrete, the worm gear 7 is rotated in the opposite direction to complete the adjustment work conveniently and efficiently. It is very convenient to use. Moreover, when different flow rates of concrete need to be discharged from the two discharge pipes 4, the partition plate 6 can be tilted at different angles, making it more flexible in use.

[0030] The aforementioned connecting part includes an annular groove 12 disposed within the discharge port 11. The input end of the cylindrical tube 2 is inserted into the annular groove 12. A flange 13 is fixedly connected to the outer wall of the cylindrical tube 2, abutting against the outer wall of the pump body 1. A sealing ring is also installed on the flange 13. The outer wall of the pump body 1 is provided with a clamping part for clamping the flange 13. The clamping part includes an externally threaded pipe 16 fixedly connected to the outer wall of the pump body 1. An upwardly arched dust baffle is fixedly connected to the pump body 1. The cylindrical tube 2 and the internally threaded pipe 15 are both located below the dust baffle. The dust baffle is used to prevent foreign objects from contaminating the cylindrical tube 2 and the internally threaded pipe 15. The outer wall of the externally threaded pipe 16 is threaded with an internally threaded pipe 15. The inner wall of the internally threaded pipe 15 is fixedly connected with a plurality of circumferentially distributed pressure blocks 17. The outer wall of the flange 13 is fixedly connected with a protrusion 14 corresponding to the position of the pressure block 17. The pressure block 17 presses against the surface of the protrusion 14, and the number of pressure blocks 17 and protrusions 14 is the same. In this application, the preferred number is 6. The cross-sectional shape of the pressure block 17 and the protrusion 14 is trapezoidal or triangular, and the contact surface of the pressure block 17 and the protrusion 14 is provided with anti-slip texture for improving friction. The outer wall of the internally threaded pipe 15 is fixedly connected with a handle 18.

[0031] When different tilt angles of the discharge pipe 4 are required, or when the blockage of the square pipe 3 needs to be replaced, the internal threaded pipe 15 is rotated by the handle 18. The internal threaded pipe 15 will drive multiple pressure blocks 17 to rotate synchronously, and will also drive the pressure blocks 17 away from the protrusion 14. When the pressure block 17 and the protrusion 14 are completely misaligned and there is a clear gap between them, the cylindrical pipe 2 is pulled out from the annular groove 12. Then the cylindrical pipe 2 that needs to be replaced is reset into the annular groove 12, and the internal threaded pipe 15 is reversed to reset it. The replacement of the discharge pipe 4 and the square pipe 3 can be completed quickly, making it more flexible to use.

[0032] A backflush pipe 10 is fixedly connected to the outer wall of the square tube 3, and a valve 19 is fixedly installed on the backflush pipe 10. The output ends of the two backflush pipes 10 are respectively connected to the two channels of the square tube 3, and the output ends of the two backflush pipes 10 are inclined towards the inlet of the discharge pipe 4.

[0033] Specifically, when it is necessary to flush the inner channel of the square pipe 3 and the discharge pipe 4, connect the inlet end of the backflushing pipe 10 to an external water supply device, such as a faucet or a water pump, and open the valve 19. Water can then enter the inner channel of the square pipe 3 and the discharge pipe 4 through the backflushing pipe 10 and will eventually be discharged from the end of the discharge pipe 4, thus completing the flushing work of the square pipe 3 and the discharge pipe 4 and preventing blockage when one of the discharge pipes 4 is not in use.

[0034] This dual-discharge concrete pump, during operation, pump body 1 discharges concrete from discharge hole 11 into cylindrical pipe 2, then into square pipe 3, and finally out through two inclined discharge pipes 4. The two discharge pipes 4 make pump body 1 more convenient and efficient to use. When only one discharge pipe 4 needs to discharge concrete, crank handle 9 rotates worm gear 7, which in turn drives shaft 5 to rotate via worm wheel 8. Shaft 5 then drives partition plate 6 to swing. When the movable end of partition plate 6 presses against the inner wall of square pipe 3, partition plate 6 blocks one of the channels in square pipe 3, thus blocking the discharge pipe 4 connected to the current channel, allowing one discharge pipe 4 to discharge concrete. When the other discharge pipe 4 needs to discharge concrete, rotating worm gear 7 in the opposite direction allows for convenient and efficient adjustment. It is very convenient to use, and when different flow rates of concrete need to be discharged from the two discharge pipes 4, the partition plate 6 can be tilted at different angles, making it more flexible in use.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A twin discharge concrete pump comprising a pump body (1) with a discharge opening (11), characterized in that Also include: The cylindrical pipe (2) is connected with the discharge hole (11) through the connecting part, Wherein, the end of the cylindrical pipe (2) is fixedly connected with the square tube (3), and the end of the square tube (3) is fixedly connected with two inclined discharge pipes (4); The rotating shaft (5) is rotatably connected in the square tube (3) and located between the two discharge pipes (4), Wherein, the outer wall of the rotating shaft (5) is fixedly connected with the partition plate (6), the partition plate (6) divides the square tube (3) into two channels, and the two discharge pipes (4) are located at the output ends of the two channels respectively, and the square tube (3) is provided with an adjusting part for driving the rotating shaft (5) to rotate.

2. A dual discharge concrete pump as claimed in claim 1, wherein, The connecting part includes an annular groove (12) arranged in the port of the discharge hole (11), the input end of the cylindrical pipe (2) is inserted into the annular groove (12), the outer wall of the cylindrical pipe (2) is fixedly connected with a flange plate (13) abutting against the outer wall of the pump body (1), and the outer wall of the pump body (1) is provided with a pressing part for pressing the flange plate (13).

3. A dual discharge concrete pump as claimed in claim 2, wherein, The pressing part includes an outer threaded pipe (16) fixedly connected to the outer wall of the pump body (1), the outer wall of the outer threaded pipe (16) is threadedly connected with an inner threaded pipe (15), the inner wall of the inner threaded pipe (15) is fixedly connected with a plurality of circumferentially distributed pressing blocks (17), the outer wall of the flange plate (13) is fixedly connected with a protrusion (14) corresponding in position to the pressing blocks (17), the pressing blocks (17) are pressed against the surface of the protrusion (14), and the outer wall of the inner threaded pipe (15) is fixedly connected with a handle (18).

4. A dual discharge concrete pump as claimed in claim 3, wherein, The cross-sectional shape of the pressing block (17) and the protrusion (14) is trapezoidal or triangular, and anti-skid lines are arranged on the contact surfaces of the pressing block (17) and the protrusion (14).

5. A dual discharge concrete pump as claimed in claim 1, wherein, The adjusting part includes a worm (7) rotatably connected to the outer wall of the square tube (3), one end of the rotating shaft (5) is fixedly installed with a worm wheel (8) engaged with the worm (7), and one end of the worm (7) is fixedly installed with a crank handle (9).

6. A dual discharge concrete pump as claimed in claim 1, wherein, The outer wall of the square tube (3) is fixedly connected with a backflush pipe (10), and a valve (19) is fixedly installed on the backflush pipe (10), and the output ends of the two backflush pipes (10) are respectively communicated with the two channels of the square tube (3).

7. A dual discharge concrete pump as claimed in claim 6, wherein, The output ends of the two backflush pipes (10) are inclined to the input port direction of the discharge pipe (4).

8. A dual discharge concrete pump as claimed in claim 3, wherein, The pump body (1) is fixedly connected with an upwardly arched dust cover, and the cylindrical pipe (2) and the inner threaded pipe (15) are located below the dust cover.

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