A double-cylinder building material fluid distribution control mechanism

Abstract

The present invention discloses a dual-cylinder building material fluid dispensing control mechanism, comprising: a valve body, a valve sleeve and a motor, the front face of the valve body is concavely provided with an annular groove corresponding to the valve sleeve, the rotating shaft of the motor is provided with a first gear, the front end of the inner wall of the valve sleeve is provided with a circle of gear teeth, the top of the valve body is symmetrically provided with a first flow channel and a second flow channel extending downward, the back of the valve body is provided with a first piston chamber and a second piston chamber connected to the first flow channel and the second flow channel respectively, the bottom of the valve body is provided with a third flow channel connected to the first piston chamber and a fourth flow channel connected to the second piston chamber, and the valve sleeve is symmetrically provided with a first through hole and a second through hole. Through the above manner, the dual-cylinder building material fluid dispensing control mechanism of the present invention realizes the dispensing control during the pumping of building material fluid, and has a simple structure and high stability in use.

Description

Technical Field

[0001] The invention relates to the technical field of building material fluid transportation, in particular to a double-cylinder building material fluid distribution control mechanism. Background Art

[0002] Building materials include concrete, mortar and other fluids. In construction projects, fluid pumping is required. For example, a concrete pump truck usually uses a piston and a cylinder to pump concrete into a formwork for pouring.

[0003] The piston moves in the cylinder body, responsible for the suction and push out of concrete. In order to avoid the backflow of concrete during push out, a fluid control mechanism must be installed to control the suction and push out of concrete. The structure of the existing fluid control mechanism is complicated. If two cylinders are used for alternating operation, the complexity of the fluid control mechanism will be further increased, the stability of use will be reduced, leakage problems will easily occur, concrete will be wasted, and energy consumption will increase, which needs to be improved. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a double-cylinder building material fluid distribution control mechanism to distribute and control the fluid, improve structural stability and reduce leakage problems.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a double-cylinder building material fluid dispensing control mechanism, comprising: a valve body, a valve sleeve and a motor, the front side of the valve body is concavely provided with an annular groove corresponding to the valve sleeve, the end of the valve sleeve extends into the annular groove, the motor is arranged on the front side of the valve body, a first gear is arranged on the rotating shaft of the motor, a circle of gear teeth is arranged at the front end of the inner wall of the valve sleeve, a second gear located between the first gear and the gear teeth is arranged on the front side of the valve body, a first flow channel and a second flow channel extending downward are symmetrically arranged on the top of the valve body, a first piston chamber and a second piston chamber connected to the first flow channel and the second flow channel respectively are arranged at intervals on the back side of the valve body, the axes of the first piston chamber and the second piston chamber are located within the inner hole range of the valve sleeve, a third flow channel connected to the first piston chamber and a fourth flow channel connected to the second piston chamber are arranged at the bottom of the valve body, a first through hole and a second through hole are symmetrically arranged on the valve sleeve, and the axes of the first through hole and the second through hole are coplanar with the axes of the first flow channel and the second flow channel.

[0006] In a preferred embodiment of the present invention, a mounting groove corresponding to the motor is concavely provided on the front side of the valve body.

[0007] In a preferred embodiment of the present invention, the second gear is meshed with the first gear and the gear teeth respectively.

[0008] In a preferred embodiment of the present invention, the front side of the valve body is provided with a first cover ring located on the outside of the valve sleeve and a second cover ring located on the inside of the valve sleeve, the second cover ring is provided with a retaining spring extending into the inner wall of the valve sleeve, and the inner wall of the valve sleeve is provided with a retaining groove corresponding to the retaining spring.

[0009] In a preferred embodiment of the present invention, the front of the valve body is provided with sealing rings located on the inner wall and outer circle of the valve sleeve, and the sealing rings are respectively pressed by the first cover ring and the second cover ring, and the first cover ring and the second cover ring are fixed to the valve body with screws.

[0010] In a preferred embodiment of the present invention, the first piston cavity and the second piston cavity are blind holes respectively.

[0011] In a preferred embodiment of the present invention, the first flow channel is concentric with the third flow channel, and the second flow channel is concentric with the fourth flow channel.

[0012] In a preferred embodiment of the present invention, when the first through hole is located on the axis of the first flow channel as the valve sleeve rotates, the second through hole is located on the axis of the fourth flow channel; when the second through hole is located on the axis of the second flow channel as the valve sleeve rotates, the first through hole is located on the axis of the third flow channel.

[0013] In a preferred embodiment of the present invention, the diameter of the first through hole is greater than the diameter of the first flow channel.

[0014] In a preferred embodiment of the present invention, a feed pipe joint corresponding to the first flow channel and the second flow channel is provided on the top of the valve body, and a discharge pipe joint corresponding to the third flow channel and the fourth flow channel is provided on the bottom of the valve body.

[0015] The beneficial effects of the present invention are as follows: a double-cylinder building material fluid distribution control mechanism pointed out by the present invention utilizes a motor to drive the rotation of a valve sleeve to realize the control of the first flow channel, the second flow channel, the third flow channel and the fourth flow channel, and cooperates with the alternating operation of the pistons in the first piston chamber and the second piston chamber to realize the distribution and pumping of the building material fluid. It has a simple structure, high stability in use, reduces leakage problems, and is beneficial to reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of a double-cylinder building material fluid distribution control mechanism of the present invention;

[0018] Figure 2 yes Figure 1 AA section view;

[0019] Figure 3 yes Figure 2 BB section view;

[0020] Figure 4 yes Figure 3 Schematic diagram of the structure after the middle valve sleeve is rotated 90° counterclockwise. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1~Figure 4 , the embodiment of the present invention includes:

[0023] like Figure 1 The double-cylinder building material fluid dispensing control mechanism shown comprises: a valve body 1, a valve sleeve 11 and a motor 5. The front side of the valve body 1 is concavely provided with an annular groove corresponding to the valve sleeve 11, and the end of the valve sleeve 11 extends into the annular groove. The dispensing control is performed by rotating the valve sleeve 11.

[0024] The front of the valve body 1 is provided with a first cover ring 2 located outside the valve sleeve 11 and a second cover ring 3 located inside the valve sleeve 11. The first cover ring 2 and the second cover ring 3 are fixed to the front of the valve body 1 by screws, and the structure is firm. The second cover ring 3 is provided with a clamping spring 13 extending to the inner wall of the valve sleeve 11, and the inner wall of the valve sleeve 11 is provided with a clamping groove corresponding to the clamping spring 13. The cooperation between the clamping spring 13 and the clamping groove does not affect the rotation of the valve sleeve 11, and the axial position of the valve sleeve 11 can be limited.

[0025] The front of the valve body 1 is provided with a sealing ring 14 located on the inner wall and outer circle of the valve sleeve 11 to reduce leakage problems. The sealing ring 14 is pressed and fixed by the first cover ring 2 and the second cover ring 3 respectively, and a positioning groove corresponding to the sealing ring 14 is concavely provided on the front of the valve body 1, which is convenient for installation and maintenance.

[0026] like Figure 2 As shown, the motor 5 is arranged on the front side of the valve body 1. The front side of the valve body 1 is concavely provided with an installation groove corresponding to the motor 5, which is easy to install and is fixed with bolts to improve the structural stability of the motor 5. The motor 5 adopts a servo motor and the speed can be adjusted and controlled by a PLC controller.

[0027] A first gear 4 is provided on the rotating shaft of the motor 5, a circle of gear teeth 12 is provided at the front end of the inner wall of the valve sleeve 11, and a second gear 6 is provided between the first gear 4 and the gear teeth on the front side of the valve body 1. The second gear 6 is respectively meshed with the first gear 4 and the gear teeth 12. The first gear 4 is driven by the motor 5 to drive the second gear 6 to rotate, thereby driving the valve sleeve 11 to rotate.

[0028] like Figure 3 As shown, the top of the valve body 1 is symmetrically provided with a first flow channel 7 and a second flow channel 8 extending downward, and the back of the valve body 1 is alternately provided with a first piston chamber 15 and a second piston chamber 19 connected to the first flow channel 7 and the second flow channel 8 respectively. The first piston chamber and the second piston chamber are blind holes respectively, and the axes of the first piston chamber 15 and the second piston chamber 19 are located within the inner hole range of the valve sleeve 11, so as to facilitate the opening and closing control of the first flow channel 7 and the second flow channel 8 through the valve sleeve 11.

[0029] The bottom of the valve body 1 is provided with a third flow channel 10 connected to the first piston chamber 15 and a fourth flow channel 9 connected to the second piston chamber 19. The first flow channel 7 is concentric with the third flow channel 10, and the second flow channel 8 is concentric with the fourth flow channel 9, which is conducive to the downward transportation of the fluid. The top of the valve body 1 is provided with a feed pipe joint 16 corresponding to the first flow channel 7 and the second flow channel 8. The feed pipe joint 16 is externally connected to the building material fluid storage tank, which is equivalent to the top of the first flow channel 7 and the second flow channel 8 being connected. The bottom of the valve body 1 is provided with a discharge pipe joint 20 corresponding to the third flow channel 10 and the fourth flow channel 9, which is externally connected to a pumping pipeline to pump the building material fluid to the construction site. The two discharge pipe joints 20 can be combined into one through a tee, or connected to the pumping pipelines separately to achieve double-tube output.

[0030] The valve sleeve 11 is symmetrically provided with a first through hole 18 and a second through hole 17. The diameter of the first through hole 18 is larger than the diameter of the first flow channel 7. The larger diameter of the first through hole 18 does not affect the rapid fall of the fluid. Figure 4 As shown, the axes of the first through hole 18 and the second through hole 17 are coplanar with the axes of the first flow channel 7 and the second flow channel 8. By rotating the valve sleeve 11, the positions of the first through hole 18 and the second through hole 17 are changed to achieve fluid distribution control, as follows:

[0031] 1. When the first through hole 18 rotates with the valve sleeve 11 and is located on the axis of the first flow channel 7, the first flow channel 7 is opened, and the piston in the first piston chamber 15 moves back to inhale the fluid. At this time, the second through hole 17 is located on the axis of the fourth flow channel 9, and the fourth flow channel 9 is opened. The piston in the second piston chamber 19 moves forward to push the fluid into the fourth flow channel 9 and pump it out through the discharge pipe joint 20;

[0032] 2. When the second through hole 17 rotates counterclockwise with the valve sleeve 11 and is located on the axis of the second flow channel 8, the second flow channel 8 is opened, and the piston in the second piston chamber 19 retreats to inhale the fluid. At this time, the first through hole 18 is located on the axis of the third flow channel 10, and the piston in the first piston chamber 15 advances to push the fluid into the third flow channel 10 and pump it out through the discharge pipe joint 20.

[0033] In summary, the double-cylinder building material fluid distribution control mechanism pointed out in the present invention can distribute the fluid in the first piston chamber 15 and the second piston chamber 19, which is beneficial to the alternating reciprocating motion of the pistons in the first piston chamber 15 and the second piston chamber 19, realizes the pumping of the fluid, has high control accuracy, simple structure, good anti-leakage effect, and is beneficial to reducing energy consumption.

[0034] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dual-cylinder building material fluid distribution control mechanism, characterized in that: include: A valve body, a valve sleeve and a motor, wherein the front side of the valve body is concavely provided with an annular groove corresponding to the valve sleeve, the end of the valve sleeve extends into the annular groove, the motor is arranged on the front side of the valve body, a first gear is arranged on the rotating shaft of the motor, a circle of gear teeth is arranged at the front end of the inner wall of the valve sleeve, a second gear located between the first gear and the gear teeth is arranged on the front side of the valve body, a first flow channel and a second flow channel extending downward are symmetrically arranged on the top of the valve body, a first piston chamber and a second piston chamber connected to the first flow channel and the second flow channel respectively are arranged at intervals on the back side of the valve body, and the axes of the first piston chamber and the second piston chamber are located in the inner hole range of the valve sleeve. A third flow channel connected to the first piston chamber and a fourth flow channel connected to the second piston chamber are arranged at the bottom of the valve body, and a first through hole and a second through hole are symmetrically arranged on the valve sleeve, the axes of the first through hole and the second through hole are coplanar with the axes of the first flow channel and the second flow channel, the first flow channel is concentric with the third flow channel, the second flow channel is concentric with the fourth flow channel, when the first through hole is located on the axis of the first flow channel as the valve sleeve rotates, the second through hole is located on the axis of the fourth flow channel, and when the second through hole is located on the axis of the second flow channel as the valve sleeve rotates, the first through hole is located on the axis of the third flow channel.

2. The double-cylinder building material fluid distribution control mechanism according to claim 1 is characterized in that: The front side of the valve body is concavely provided with a mounting groove corresponding to the motor.

3. The double-cylinder building material fluid distribution control mechanism according to claim 1, characterized in that: The second gear is meshed with the first gear and the gear teeth respectively.

4. The double-cylinder building material fluid distribution control mechanism according to claim 1, characterized in that: The front of the valve body is provided with a first cover ring located on the outside of the valve sleeve and a second cover ring located on the inside of the valve sleeve, the second cover ring is provided with a retaining spring extending into the inner wall of the valve sleeve, and the inner wall of the valve sleeve is provided with a retaining groove corresponding to the retaining spring.

5. The double-cylinder building material fluid distribution control mechanism according to claim 4, characterized in that: The front of the valve body is provided with sealing rings located on the inner wall and outer circle of the valve sleeve, and the sealing rings are respectively pressed and fixed by the first cover ring and the second cover ring, and the first cover ring and the second cover ring are fixed to the valve body by screws.

6. The double-cylinder building material fluid distribution control mechanism according to claim 1, characterized in that: The first piston cavity and the second piston cavity are blind holes respectively.

7. The double-cylinder building material fluid distribution control mechanism according to claim 1, characterized in that: The diameter of the first through hole is greater than the diameter of the first flow channel.

8. The double-cylinder building material fluid distribution control mechanism according to claim 1, characterized in that: The top of the valve body is provided with a feed pipe joint corresponding to the first flow channel and the second flow channel, and the bottom of the valve body is provided with a discharge pipe joint corresponding to the third flow channel and the fourth flow channel.

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