A two-knife valve controlled pneumatic dredge pump

Abstract

The utility model discloses a kind of two knife valve control's pneumatic dredging pump, including bottom plate, the outer surface of the bottom plate is fixedly connected with pump body, the outer surface of the pump body is equipped with feed pipe, the outer surface of the pump body is equipped with discharge pipe, the outer surface of the pump body is equipped with knife valve control assembly, the outer surface of knife valve control assembly is equipped with linkage control rod. The device is by adopting the mechanical linkage structure of first knife valve and second knife valve, realizes synchronous operation using linkage control rod, completely avoids the damage risk of electric valve under overload operating condition, simultaneously this pure mechanical structure will show higher reliability under sludge and other harsh working environment, the rigidity connection using linkage control rod ensures the instantaneity of valve switching, can effectively solve the problem of equipment switching delay, and knife valve control assembly is provided with special rubber sealing strip at valve port, forms double seal with stainless steel valve body, can effectively avoid material backflow phenomenon appears.

Description

Technical Field

[0001] This utility model relates to the field of dredging equipment technology, and in particular to a pneumatic dredging pump controlled by two knife valves. Background Technology

[0002] In today's various dredging operations, such as urban river management, port and waterway maintenance, industrial wastewater pool cleaning, and coal mine underground water storage treatment, efficient and reliable dredging equipment is crucial. As a core piece of equipment, the performance of the dredging pump directly affects the efficiency, cost, and environmental impact of the dredging work.

[0003] Currently, traditional pneumatic sludge pumps mostly use a single valve or electric control. However, electric valves are prone to damage under overload, and single-valve systems are prone to material backflow during switching, resulting in switching delays and wear. To address these issues, we propose a pneumatic sludge pump controlled by two knife valves. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic dredging pump controlled by two knife valves to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pneumatic sludge removal pump controlled by two knife valves includes a base plate, a pump body fixedly connected to the outer surface of the base plate, a feed pipe and a discharge pipe on the outer surface of the pump body, a knife valve control assembly on the outer surface of the pump body, a linkage control rod on the outer surface of the knife valve control assembly, and a control box fixedly connected to the outer surface of the base plate.

[0007] In a further embodiment, the outer surface of the base plate is provided with a groove, and a set of casters is fixedly connected to the outer surface of the base plate.

[0008] In a further embodiment, the end of the feed pipe is provided with a suction head, the knife valve control assembly includes a first knife valve and a second knife valve, the outer surface of the first knife valve is fixedly connected to the outer surface of the feed pipe, the outer surface of the second knife valve is fixedly connected to the outer surface of the discharge pipe, the two ends of the linkage control rod are respectively tightly fitted to the valve handles of the first knife valve and the second knife valve, and the valve port of the knife valve control assembly is provided with a rubber sealing strip.

[0009] In a further embodiment, the control box includes a main body box, a control panel is provided on the outer surface of the main body box, a timer is fixedly connected to the outer surface of the main body box, an air passage pipe is provided on the outer surface of the main body box, a start control component is provided inside the main body box, a double-acting cylinder is provided on the outer surface of the pump body, and the output end of the double-acting cylinder is fixedly connected to the outer surface of the control box through an air passage.

[0010] In a further embodiment, the pump body is provided with a Laval nozzle at the top, a negative pressure chamber and an expansion pipe inside the pump body, a compressed air interface on the outer surface of the pump body, and a lifting lug fixedly connected to the outer surface of the pump body.

[0011] In a further embodiment, a support assembly is fixedly connected to the outer surface of the base plate. The support assembly includes a set of base blocks. A stabilizing plate is snapped onto the outer surface of two base blocks. A locking bolt is provided on the outer surface of each base block. The outer surface of the stabilizing plate is snapped onto the outer surface of the discharge pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device employs a mechanical linkage structure between the first and second knife valves, utilizing a linkage control lever to achieve synchronous operation. This completely avoids the risk of damage to electric valves under overload conditions. Furthermore, this purely mechanical structure demonstrates higher reliability in harsh working environments such as sludge. The rigid connection of the linkage control lever ensures the immediacy of valve switching, effectively solving the problem of equipment switching delay. Additionally, the knife valve control component features a special rubber sealing strip at the valve port. This nitrile rubber material possesses excellent wear resistance and corrosion resistance, forming a double seal with the stainless steel valve body, effectively preventing material backflow. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a pneumatic dredging pump controlled by two knife valves.

[0015] Figure 2 A frontal three-dimensional structural diagram of a pneumatic dredging pump controlled by two knife valves.

[0016] Figure 3 A three-dimensional structural diagram of a pneumatic dredging pump controlled by two knife valves, viewed from below.

[0017] Figure 4 A side view three-dimensional structural diagram of a pneumatic dredging pump controlled by two knife valves.

[0018] In the diagram: 1. Base plate; 101. Casters; 102. Groove; 2. Control box; 201. Main body box; 202. Control panel; 203. Timer; 3. Support assembly; 301. Base block; 302. Stabilizing plate; 303. Locking bolt; 4. Pump body; 5. Double-acting cylinder; 6. Compressed air interface; 7. Feed pipe; 701. Suction head; 8. Knife valve control assembly; 801. First knife valve; 802. Second knife valve; 9. Linkage control lever; 10. Discharge pipe; 11. Air pipe; 12. Laval nozzle; 13. Lifting lug. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4In this utility model, a pneumatic sludge pump controlled by two knife valves includes a base plate 1. A pump body 4 is fixedly connected to the outer surface of the base plate 1. The outer surface of the pump body 4 is provided with an inlet pipe 7 and a discharge pipe 10. A knife valve control assembly 8 is provided on the outer surface of the pump body 4. A linkage control rod 9 is provided on the outer surface of the knife valve control assembly 8. A groove 102 is opened on the outer surface of the base plate 1. A set of universal wheels 101 is fixedly connected to the outer surface of the base plate 1. A suction head 701 is provided at the end of the inlet pipe 7. The knife valve control assembly 8 includes a first knife valve 801 and a second knife valve 802. The outer surface of the first knife valve 801 is fixedly connected to the outer surface of the inlet pipe 7, and the outer surface of the second knife valve 802 is fixedly connected to the outer surface of the discharge pipe 10. The two ends of the linkage control rod 9 are tightly fitted with the valve handles of the first knife valve 801 and the second knife valve 802, respectively. The valve port of the knife valve control assembly 8 is provided with... The base plate 1, with its rubber sealing strip, serves as the basic platform for the equipment. The pump body 4 is fixedly connected to its outer surface and has grooves 102 to reduce weight. A set of casters 101 is also provided to facilitate the easy movement of the equipment, forming a stable and reliable mobile working platform. The pump body 4, as the core component of the equipment, has a feed pipe 7 and a discharge pipe 10 on its outer surface to form a material conveying channel. At the same time, a suction head 701 is set at the end of the feed pipe 7 to optimize the suction efficiency. A Laval nozzle 12 is installed at the top of the pump body 4 to enhance the negative pressure effect. The internally designed negative pressure chamber and expansion tube work together to improve the suction performance. The knife valve control component 8 includes a first knife valve 801 and a second knife valve 802, which are respectively connected to the feed pipe 7 and the discharge pipe 10. The two valves are operated synchronously through the linkage control rod 9, and the valve ports are equipped with rubber sealing strips to ensure sealing, forming an efficient and reliable material flow control mechanism.

[0023] A control box 2 is fixedly connected to the outer surface of the base plate 1. The control box 2 includes a main body box 201. A control panel 202 is provided on the outer surface of the main body box 201. A timer 203 is fixedly connected to the outer surface of the main body box 201. An air passage pipe 11 is provided on the outer surface of the main body box 201. A start control component is provided inside the main body box 201. A double-acting cylinder 5 is provided on the outer surface of the pump body 4. The output end of the double-acting cylinder 5 is fixedly connected to the outer surface of the control box 2 through an air passage. The control box 2 integrates the main body box 201, the control panel 202 and the timer 203 to realize intelligent operation. The double-acting cylinder 5 is connected through the air passage pipe 11 to form a power system. The compressed air interface 6 provides a stable air source for the pump body 4, forming a precise and controllable pneumatic execution system.

[0024] The pump body 4 has a Laval nozzle 12 at its top, a negative pressure chamber and an expansion pipe inside, a compressed air interface 6 on its outer surface, a lifting lug 13 fixedly connected to its outer surface, and a support assembly 3 fixedly connected to the outer surface of the base plate 1. The support assembly 3 includes a set of base blocks 301, with a stabilizing plate 302 snapped onto the outer surface of the two base blocks 301. Each base block 301 has a locking bolt 303 on its outer surface. The outer surface of the stabilizing plate 302 snaps onto the outer surface of the discharge pipe 10. The Laval nozzle 12 can effectively enhance the negative pressure effect. Combined with the internally designed negative pressure chamber and expansion pipe, it can improve the suction performance of the equipment. The lifting lug 13 is located on the outer surface of the pump body 4 to facilitate the hoisting and transportation of the equipment. The support assembly 3 is an adjustable fixing device composed of base blocks 301, stabilizing plate 302 and locking bolt 303. It achieves stable positioning in working state through snapping with the discharge pipe 10.

[0025] The working principle of this utility model is as follows:

[0026] When using the equipment, the pump body 4 is first moved to the working position using the universal wheels 101. The equipment is then fixed using the locking bolts 303 of the support assembly 3. The parameters are set on the control panel 202 of the control box 2. Compressed air enters the double-acting cylinder 5 through the air pipeline 11. The cylinder drives the linkage control lever 9 to synchronously control the opening and closing states of the first knife valve 801 and the second knife valve 802. When the first knife valve 801 is open, the second knife valve 802 is closed. The feed pipe 7 sucks in sludge through the suction head 701. Then, the linkage control lever 9 switches the valve states, closing the first knife valve 801 while opening the second knife valve 802. Compressed air enters the pump body 4 through the compressed air interface 6. Under the action of the Laval nozzle 12, a negative pressure is formed, which discharges the sludge from the discharge pipe 10. The working cycle is monitored by the timer 203. Finally, after the sludge removal operation is completed, the equipment is hoisted and transferred using the lifting lugs 13.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pneumatic sludge removal pump controlled by two knife valves, characterized in that: Includes a base plate (1), a pump body (4) is fixedly connected to the outer surface of the base plate (1), a feed pipe (7) is provided on the outer surface of the pump body (4), a discharge pipe (10) is provided on the outer surface of the pump body (4), a knife valve control assembly (8) is provided on the outer surface of the pump body (4), a linkage control rod (9) is provided on the outer surface of the knife valve control assembly (8), and a control box (2) is fixedly connected to the outer surface of the base plate (1).

2. The pneumatic sludge pump controlled by two knife valves according to claim 1, characterized in that: The outer surface of the base plate (1) is provided with a groove (102), and a set of casters (101) are fixedly connected to the outer surface of the base plate (1).

3. The pneumatic sludge pump controlled by two knife valves according to claim 1, characterized in that: The feed pipe (7) is provided with a suction head (701) at the end. The knife valve control assembly (8) includes a first knife valve (801) and a second knife valve (802). The outer surface of the first knife valve (801) is fixedly connected to the outer surface of the feed pipe (7). The outer surface of the second knife valve (802) is fixedly connected to the outer surface of the discharge pipe (10). The two ends of the linkage control rod (9) are tightly fitted with the valve handles of the first knife valve (801) and the second knife valve (802), respectively. The valve port of the knife valve control assembly (8) is provided with a rubber sealing strip.

4. A pneumatic sludge pump controlled by two knife valves according to claim 1, characterized in that: The control box (2) includes a main body box (201), a control panel (202) is provided on the outer surface of the main body box (201), a timer (203) is fixedly connected to the outer surface of the main body box (201), an air passage pipe (11) is provided on the outer surface of the main body box (201), a start control component is provided inside the main body box (201), a double-acting cylinder (5) is provided on the outer surface of the pump body (4), and the output end of the double-acting cylinder (5) is fixedly connected to the outer surface of the control box (2) through an air passage.

5. A pneumatic sludge pump controlled by two knife valves according to claim 1, characterized in that: The pump body (4) is provided with a Laval nozzle (12) at the top. The pump body (4) is provided with a negative pressure chamber and an expansion pipe inside. The pump body (4) is provided with a compressed air interface (6) on the outer surface. The pump body (4) is fixedly connected with a lifting lug (13).

6. A pneumatic sludge pump controlled by two knife valves according to claim 1, characterized in that: The outer surface of the base plate (1) is fixedly connected to a support assembly (3). The support assembly (3) includes a set of base blocks (301). The outer surfaces of the two base blocks (301) are jointly engaged with a stabilizing plate (302). The outer surface of each base block (301) is provided with a locking bolt (303). The outer surface of the stabilizing plate (302) is engaged with the outer surface of the discharge pipe (10).

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