Arc-shaped valve for discharging

Abstract

The invention discloses an arc-shaped valve for discharging. The arc-shaped valve is characterized in that a feeding port and a discharging port are formed in the upper end and the lower end of a shell correspondingly; the shell is provided with a valve body assembly, the valve body assembly comprises a rotating shaft, a supporting arm and an arc-shaped valve plate, the rotating shaft is rotationally connected with the shell, the outer end of the rotating shaft is fixedly connected with the transmission arm, the inner end of the rotating shaft is fixedly connected with the supporting arm, the free end of the supporting arm is connected with the arc-shaped valve plate, and the face, facing the feeding port, of the arc-shaped valve plate is a convex face; a driving device is installed on one side of the shell and drives the transmission arm to rotate. A butt joint frame is arranged in the shell, located on the lower side of the feeding port and connected with the feeding port, the butt joint frame is provided with a baffle, the baffle is provided with a binding face, the binding face is used for being in butt joint and binding with the convex face of the arc-shaped valve plate, and the arc-shaped valve plate is driven by the driving device to close or open an opening of the butt joint frame. The control over the concrete discharging flow and storage is achieved, and the cleaning water amount and labor are saved.

Description

Technical Field

[0001] The invention relates to the field of concrete mixing equipment, and in particular to an arc valve for unloading materials. Background Art

[0002] The existing concrete discharge hopper comprises a discharge port and a rubber tube. When discharging concrete, the concrete is directly guided from the discharge hopper through the discharge port and the rubber tube into the concrete tank truck.

[0003] The hopper of a traditional concrete mixing plant has a simple structure, and it is difficult to control the flow of concrete and store the concrete during the mixing process. In addition, it is difficult to reduce the splashing of concrete during the mixing process, and manual maintenance is troublesome.

[0004] Therefore, there is an urgent need for an arc valve for unloading that can solve one or more of the above problems. Summary of the invention

[0005] In order to solve one or more problems existing in the prior art, the present invention provides an arc valve for unloading. The technical solution adopted by the present invention to solve the above problems is: an arc valve for unloading, comprising: a shell, wherein the upper and lower ends of the shell are respectively provided with a feed port and a unloading port, the feed port is connected to the discharge port of the concrete bin, and the unloading port is connected to the rubber tube;

[0006] The housing is provided with a valve body assembly, which includes: a rotating shaft, a support arm and an arc-shaped valve plate, wherein the rotating shaft is rotatably connected to the housing, the outer end of the rotating shaft is fixedly connected to the transmission arm, the inner end of the rotating shaft is fixedly connected to the support arm, the free end of the support arm is connected to the arc-shaped valve plate, the arc-shaped valve plate is in an arc shape and the side facing the feed port is a convex surface, and the support arm and the arc-shaped valve plate are located in the housing;

[0007] A driving device is installed on one side of the housing, the driving device is provided with a power source, and the driving device drives the transmission arm to rotate;

[0008] A docking frame is provided in the shell, the docking frame is located at the lower side of the feed port and connected to the feed port, the docking frame is provided with a baffle, the baffle is provided with a fitting surface, the fitting surface is used to butt and fit with the convex surface of the arc valve plate, and under the drive of the driving device, the arc valve plate closes or opens the opening of the docking frame.

[0009] In some embodiments, the housing is mounted with a plurality of proximity sensors, the proximity sensors are located on a rotation path of the transmission arm, and the proximity sensors are used to detect and determine the rotation state of the arc-shaped valve plate.

[0010] Furthermore, a bracket is installed on the shell, the proximity sensor is installed on the bracket, and the bracket limits the rotation angle of the transmission arm.

[0011] In some embodiments, the support arm is fan-shaped, a guide plate is installed on the concave surface of the arc valve plate, the side of the guide plate is connected to the support arm, the top surface of the guide plate faces the concave surface of the arc valve plate, and the guide plate is inclined.

[0012] Furthermore, the top surface of the guide plate is connected to the concave surface of the arc-shaped valve plate through a support plate; and an extension plate is fixedly connected to one end of the guide plate.

[0013] In some embodiments, a lining plate is installed on the convex surface of the arc-shaped valve plate, and the lining plate is butt-fitted with the fitting surface.

[0014] In some embodiments, the shell is equipped with a cleaning assembly, and the cleaning assembly includes a cleaning pipeline, and the cleaning pipeline is connected to a cleaning nozzle arranged in the shell.

[0015] In some embodiments, a connecting flange is fixedly installed on the feed port of the shell, and the connecting flange is connected to the discharge port of the concrete silo.

[0016] In some embodiments, a side surface of the shell is provided with an inspection opening, and the inspection opening is equipped with an inspection window.

[0017] The technical effects achieved by the present invention are: the flow rate and storage of concrete discharge are controlled by an arc valve, and at the same time, excessive adhesion of concrete to the shell is avoided as much as possible, thereby saving cleaning water and labor; in terms of structure, the present application has a better closing degree, a larger maximum flow rate, and a stronger bearing capacity for upper concrete than the traditional flat-push compression valve; compared with the traditional discharge hopper structure, the arc valve of the present application can avoid splashing or spilling of concrete during the flow control process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the present invention;

[0019] Figure 2 A top view of the present invention;

[0020] Figure 3 is a side view of the present invention;

[0021] Figure 4 is a cross-sectional view of the present invention;

[0022] Figure 5 is a cross-sectional view of the present invention;

[0023] Figure 6 It is a schematic diagram of the docking frame of the present invention.

[0024] [Reference Signs]

[0025] 1. Shell 10, inspection window 11, docking frame 110, baffle 111, fitting surface 12, feed port 2, connecting flange 3, valve body assembly 30, transmission arm 31, rotating shaft 32, support arm 33, arc valve plate 34, lining plate 35, guide plate 350, extension plate 351, support plate 4, drive device 40, power source 5, proximity sensor 50, bracket 6, film tube 60, clamp 7, cleaning assembly 70, cleaning pipeline 71, cleaning nozzle. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more understandable, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from this description, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] like Figure 1-Figure 6 As shown, the present invention discloses an arc valve for unloading, which comprises: a housing 1, wherein the upper and lower ends of the housing 1 are respectively provided with a feed port and a unloading port 12, wherein the feed port is connected to the discharge port of the concrete bin, and the unloading port 12 is connected to the discharge assembly, such as: the unloading port 12 is connected to the rubber tube 6;

[0028] The housing 1 is provided with a valve body assembly 3, which includes: a rotating shaft 31, a support arm 32 and an arc-shaped valve plate 33. The rotating shaft 31 is rotatably connected to the housing 1, the outer end of the rotating shaft 31 is fixedly connected to the transmission arm 30, the inner end of the rotating shaft 31 is fixedly connected to the support arm 32, the free end of the support arm 32 is connected to the arc-shaped valve plate 33, the arc-shaped valve plate 33 is arc-shaped and the side facing the feed port is convex, the support arm 32 and the arc-shaped valve plate 33 are located in the housing 1;

[0029] A driving device 4 is installed on one side of the housing 1, and the driving device 4 is provided with a power source 40, and the driving device 4 drives the transmission arm 30 to rotate;

[0030] The housing 1 is provided with a docking frame 11. Figure 4 As shown, the docking frame 11 is located at the lower side of the feed port and connected to the feed port. Figure 6As shown, the docking frame 11 is provided with a baffle 110, and the baffle 110 is provided with a fitting surface 111, and the fitting surface 111 is used to fit with the convex surface of the arc valve plate 33. Under the drive of the driving device 4, the arc valve plate 33 closes or opens the opening of the docking frame 11, and the closing or opening of the valve is achieved by the fitting of the convex surface of the arc valve plate 33 with the docking frame 11 (valve body).

[0031] Specifically, combined Figure 1-Figure 4 As shown, the feed port of the shell 1 is fixedly mounted with a connecting flange 2, and the connecting flange 2 is connected to the discharge port of the concrete bin. The side of the shell 1 is provided with an inspection port, and the inspection port is equipped with an inspection window 10, through which maintenance personnel can conveniently inspect and clean the interior of the shell 1.

[0032] It should be noted that the drive device 4 may be a hydraulic push rod, a linear drive assembly, etc., the power source 40 may be a linear motor or a hydraulic cylinder, and the drive device 4 may be provided with a self-locking mechanism or other locking mechanism, such as a ratchet self-locking mechanism. Figure 5 As shown, the feed opening 12 and the rubber tube 6 are fixedly connected via a clamp 60 .

[0033] When in use, the driving device 4 drives the transmission arm 30 to rotate, and the transmission arm 30 drives the arc-shaped valve plate 33 to rotate. Figure 4 , controlling the opening range between the arc valve plate 33 and the docking frame 11 to control the delivery flow rate; when the arc valve plate 33 is closed, the flowing concrete is cut off by the arc valve plate 33, the closing degree between the docking frame 11 and the arc valve plate 33 is good, and their closing and opening drives are smooth; when the arc valve plate 33 is closed or opened, the arched arc valve plate 33 can well bear the pressure from the upper concrete end.

[0034] Specifically, combined Figure 1-Figure 3 As shown, the housing 1 is equipped with a plurality of proximity sensors 5, which are located on the rotation path of the transmission arm 30 and are used to detect and determine the rotation state of the arc valve plate 33. The current rotation position of the transmission arm 30 is obtained through the proximity sensor 5, and then the opening angle of the arc valve plate 33 is obtained, so as to realize the detection of opening, closing, and gear position (corresponding to different opening amplitudes), and realize automatic flow control and opening and closing control in cooperation with the corresponding main control (MCU, PLC, PC, etc.).

[0035] Again, if Figure 3As shown, a bracket 50 is installed on the housing 1, and the proximity sensor 5 is installed on the bracket 50. The bracket 50 limits the rotation angle of the transmission arm 30 to achieve rotation limit and prevent the transmission arm 30 from rotating beyond the range. The housing 1 may also be installed with an additional limit mechanism to limit the transmission arm 30 or the drive device 4.

[0036] Specifically, combined Figure 4 As shown, the arm 32 is fan-shaped, and a guide plate 35 is installed on the concave surface of the arc valve plate 33. The side of the guide plate 35 is connected to the arm 32, and the top surface of the guide plate 35 faces the concave surface of the arc valve plate 33. The guide plate 35 is arranged obliquely. Since the back of the arc valve plate 33 is a concave surface, concrete splashed on the concave surface is easy to adhere there and is difficult to fall off naturally. The guide plate 35 is arranged to prevent concrete from splashing on the concave surface, and the inclined guide plate 35 is conducive to the natural sliding of concrete.

[0037] Furthermore, the top surface of the guide plate 35 is connected to the concave surface of the arc-shaped valve plate 33 through a support plate 351 to strengthen the support of the guide plate 35. An extension plate 350 may be fixedly connected to one end of the guide plate 35 according to actual needs.

[0038] It should be noted that in order to prevent concrete from splashing between the guide plate 35 and the concave surface of the arc valve plate 33, Figure 4 The docking end between the guide plate 35 and the arc valve plate 33 is closed, and this end is the opening port of the docking frame 11. The other end can be closed or open. The open end can avoid water accumulation during cleaning, but limits the opening direction of the arc valve plate 33.

[0039] Specifically, combined Figure 4 , Figure 5 As shown, a lining plate 34 is installed on the convex surface of the arc-shaped valve plate 33, and the lining plate 34 is butted against the fitting surface 111. The lining plate 34 is used to protect the convex surface of the arc-shaped valve plate 33, and the lining plate 34 is designed to be detachable.

[0040] Furthermore, the shell 1 is installed with a cleaning component 7, and the cleaning component 7 includes a cleaning pipeline 70, and the cleaning pipeline 70 is connected to a cleaning nozzle 71 arranged in the shell 1, wherein the cleaning nozzle 71 is arranged at the top end of the shell 1, and the cleaning nozzle 71 sprays water toward the inner wall of the shell 1 and the support arm 32, the guide plate 35, and the discharge port 12 to clean the interior.

[0041] To sum up, the arc valve is used to control the flow rate and storage of concrete, and at the same time, excessive adhesion of concrete to the shell is avoided as much as possible, thereby saving cleaning water and labor; in terms of structure, the present application has better closing degree, larger maximum flow rate, and stronger bearing capacity for upper concrete than the traditional flat-push compression valve; compared with the traditional hopper structure, the arc valve of the present application can avoid splashing or spilling of concrete during the flow control process.

[0042] The above-described embodiments only express one or more implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An arc valve for unloading, characterized in that: A shell, wherein the upper and lower ends of the shell are respectively provided with a feed port and a discharge port, the feed port is connected to the discharge port of the concrete bin, and the discharge port is connected to the discharge assembly; The housing is provided with a valve body assembly, which includes: a rotating shaft, a support arm and an arc-shaped valve plate, wherein the rotating shaft is rotatably connected to the housing, the outer end of the rotating shaft is fixedly connected to the transmission arm, the inner end of the rotating shaft is fixedly connected to the support arm, the free end of the support arm is connected to the arc-shaped valve plate, the side of the arc-shaped valve plate facing the feed port is a convex surface, and the support arm and the arc-shaped valve plate are located in the housing; A driving device is installed on one side of the housing, the driving device is provided with a power source, and the driving device drives the transmission arm to rotate; A docking frame is provided in the shell, the docking frame is located at the lower side of the feed port and connected to the feed port, the docking frame is provided with a baffle, the baffle is provided with a fitting surface, the fitting surface is used to butt and fit with the convex surface of the arc valve plate, and under the drive of the driving device, the arc valve plate closes or opens the opening of the docking frame.

2. The arc valve for unloading materials according to claim 1, characterized in that: The housing is equipped with a plurality of proximity sensors, the proximity sensors are located on the rotation path of the transmission arm, and the proximity sensors are used to detect and determine the rotation state of the arc-shaped valve plate.

3. The arc valve for unloading materials according to claim 2, characterized in that: A bracket is installed on the shell, the proximity sensor is installed on the bracket, and the bracket limits the rotation angle of the transmission arm.

4. The arc valve for unloading materials according to claim 1, characterized in that: The support arm is fan-shaped, a guide plate is installed on the concave surface of the arc-shaped valve plate, the side surface of the guide plate is connected to the support arm, the top surface of the guide plate faces the concave surface of the arc-shaped valve plate, and the guide plate is arranged obliquely.

5. The arc valve for unloading materials according to claim 4, characterized in that: The top surface of the guide plate is connected to the concave surface of the arc-shaped valve plate through a support plate.

6. The arc valve for unloading materials according to claim 4, characterized in that: One end of the guide plate is fixedly connected with an extension plate.

7. The arc valve for unloading materials according to claim 1, characterized in that: A lining plate is installed on the convex surface of the arc-shaped valve plate, and the lining plate is butted against and in contact with the contact surface.

8. The arc valve for unloading materials according to claim 1, characterized in that: The shell is equipped with a cleaning component, which includes a cleaning pipeline connected to a cleaning nozzle arranged in the shell.

9. The arc valve for unloading materials according to claim 1, characterized in that: The feed inlet of the shell is fixedly mounted with a connecting flange, and the connecting flange is connected to the discharge port of the concrete bin.

10. The arc valve for unloading materials according to claim 1, characterized in that: An inspection opening is arranged on the side of the shell, and an inspection window is installed on the inspection opening.

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