A national four emission energy-saving air-cooled diesel engine drainage pump
By using the positioning columns and grooves of the water pump mounting bracket and support plate, combined with the design of abutment springs and buffer pads, the problems of inconvenient disassembly and assembly and vibration impact of existing drainage pumps are solved, thereby improving assembly efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LONGDONG MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-23
AI Technical Summary
The existing drainage pumps have a complex installation structure, are inconvenient to disassemble and assemble, and lack effective buffering and shock absorption measures, which affect the construction progress and equipment life.
The pump mounting bracket and the pump support plate are matched with positioning columns and positioning grooves, and the elastic force of the abutment spring is used to achieve a stable connection. Buffer pads are set at the connection between the pump base and the pump mounting bracket to buffer vibration.
It improves assembly and maintenance efficiency, reduces component wear, extends equipment lifespan, and lowers construction costs and labor intensity.
Smart Images

Figure CN224396576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel engine drain pump technology, and in particular to a National IV emission energy-saving air-cooled diesel engine drain pump. Background Technology
[0002] In many fields, such as water conservancy construction, drainage pumps are key equipment, playing a vital role in timely drainage of accumulated water and ensuring construction safety and efficiency. Currently, there are various types of drainage pumps on the market to meet the drainage needs of different scenarios.
[0003] In the prior art, such as the drainage pump for water conservancy construction disclosed in CN221220715U, the structure mainly includes an outer cage, a diesel engine, a pump, and a structure to facilitate movement on soft muddy ground. However, this technical solution has obvious shortcomings in practical applications.
[0004] On the one hand, the pump's installation structure is relatively complex, making disassembly and assembly difficult. During the use of the drainage pump, the ease of assembly directly affects the construction progress, while the ease of maintenance relates to the equipment's lifespan and repair costs. Because the drainage pump is difficult to disassemble and assemble, operators need to spend a significant amount of time and effort when assembly or maintenance is required, increasing construction costs and labor intensity.
[0005] On the other hand, the construction environment for water conservancy projects is often harsh, and drainage pumps are subject to various complex factors during operation, such as vibration and impact. Existing drainage pumps lack effective buffering and shock absorption measures to cope with these factors, which can easily lead to loosening, wear, or even damage to internal components, thereby affecting the normal operation and service life of the drainage pump. Utility Model Content
[0006] The purpose of this utility model is to provide a National IV emission standard energy-saving air-cooled diesel engine drain pump. The pump mounting bracket achieves convenient horizontal positioning by cooperating with the positioning columns and positioning grooves on the pump support plate. Then, with the help of the elastic force of the abutment spring, the L-shaped abutment seat is locked into the side of the pump mounting bracket to complete the stable connection, which greatly improves the efficiency of assembly and maintenance. At the same time, the buffer rubber pad set at the connection between the pump base and the pump mounting bracket can effectively buffer the vibration of the pump body during operation, reduce the wear of parts, and extend the service life of the equipment.
[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0008] A National IV emission standard energy-saving air-cooled diesel engine drain pump includes:
[0009] A support frame is provided, on which a water pump support plate is fixedly connected. A detachable water pump assembly is mounted on the water pump support plate. A snap-fit fixing component for fixing the water pump assembly is installed on the water pump support plate at the position corresponding to the water pump assembly.
[0010] The aforementioned energy-saving air-cooled diesel engine drain pump for National IV emission standards includes a pump body, with pump seats fixedly connected to both sides of the bottom of the pump body. A pump mounting bracket is installed at the bottom of the pump seat, and the pump seat and the pump mounting bracket are fixedly connected by fixing bolts.
[0011] The aforementioned energy-saving air-cooled diesel engine drain pump that meets China IV emission standards has a buffer pad installed on the pump mounting bracket at the position corresponding to the fixing bolt.
[0012] The aforementioned energy-saving air-cooled diesel engine drain pump for National IV emission standards has two positioning slots on the pump mounting bracket, and a positioning column that matches the positioning slot is fixedly connected to the pump support plate at the position corresponding to the positioning slot.
[0013] The aforementioned National IV emission standard energy-saving air-cooled diesel engine drain pump has an arc-shaped top on the positioning column.
[0014] The aforementioned National IV emission energy-saving air-cooled diesel engine drain pump includes a mounting base fixedly connected to the water pump support plate, an abutment spring fixedly connected to the side of the mounting base, and an L-shaped abutment seat matching the water pump mounting bracket fixedly connected to the side of the abutment spring.
[0015] The aforementioned National IV emission energy-saving air-cooled diesel engine drain pump has two symmetrically arranged positioning slide rods fixedly connected to the side of the L-shaped abutment seat. The other end of the positioning slide rod movably passes through the mounting seat and extends to the outside of the mounting seat, where an operating rod is fixedly connected.
[0016] This utility model has at least the following beneficial effects:
[0017] 1. This utility model realizes a National IV emission energy-saving air-cooled diesel engine drain pump. The water pump mounting bracket achieves convenient horizontal positioning by cooperating with the positioning column and positioning groove on the water pump support plate. Then, with the help of the elastic force of the abutment spring, the L-shaped abutment seat is locked into the side of the water pump mounting bracket to complete the stable connection, which greatly improves the assembly and maintenance efficiency. At the same time, the buffer rubber pad set at the connection between the pump base and the water pump mounting bracket can effectively buffer the vibration of the water pump body during operation, reduce the wear of parts, and extend the service life of the equipment.
[0018] 2. Place the pump mounting bracket at the bottom of the pump body onto the pump support plate on the support frame, aligning the positioning groove on the pump mounting bracket with the positioning post on the pump support plate. This achieves convenient horizontal positioning between the pump mounting bracket and the pump support plate. Subsequently, under the elastic force of the abutment spring, the L-shaped abutment seat is engaged with the side of the pump mounting bracket, thus achieving a stable connection between the pump mounting bracket and the pump support plate. This design allows operators to quickly and easily complete the assembly and disassembly of the drainage pump without complicated tools and cumbersome procedures, greatly improving assembly and maintenance efficiency and reducing construction costs and labor intensity.
[0019] 3. A buffer pad is installed at the connection between the pump base and the pump mounting bracket. This design has significant advantages. When the drainage pump is operating, it generates considerable vibration. The buffer pad effectively cushions the vibration generated by the pump body during operation, reducing the impact of vibration on the internal components. By reducing mutual impact and wear between components, it avoids problems such as loosening and damage of components due to vibration, thereby extending the service life of the drainage pump and improving the reliability and stability of the equipment. Attached Figure Description
[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0021] Figure 1 This is a schematic diagram of the structure of the energy-saving air-cooled diesel engine drain pump that meets China IV emission standards.
[0022] Figure 2 This is a schematic diagram of the water pump assembly in the National IV emission energy-saving air-cooled diesel engine drain pump of this utility model;
[0023] Figure 3 This is a schematic diagram of the support frame in the National IV emission energy-saving air-cooled diesel engine drain pump of this utility model;
[0024] Figure 4 This is a schematic diagram of the snap-fit fixing component in the National IV emission energy-saving air-cooled diesel engine drain pump of this utility model.
[0025] Explanation of icon numbers:
[0026] 1. Support frame; 2. Water pump support plate; 3. Water pump assembly; 4. Clip-on fixing assembly;
[0027] 301. Pump body; 3011. Pump base; 3012. Pump mounting bracket;
[0028] 302, fixing bolts; 3021, buffer pads;
[0029] 303, positioning groove; 3031, positioning post;
[0030] 401. Mounting base; 4011. Abutment spring; 4012. L-shaped abutment base;
[0031] 402. Positioning slide bar; 4021. Operating lever. Detailed Implementation
[0032] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0033] Please refer to Figures 1 to 4 As shown in the figure, an embodiment of the present invention provides a National IV emission energy-saving air-cooled diesel engine drain pump, including: a support frame 1, a water pump support plate 2 fixedly connected to the support frame 1, a detachable water pump assembly 3 installed on the water pump support plate 2, and a snap-fit fixing component 4 for fixing the water pump assembly 3 installed on the water pump support plate 2 at the position corresponding to the water pump assembly 3.
[0034] By adopting the above technical solution, the water pump mounting bracket 3012 can be conveniently positioned in the horizontal direction by cooperating with the positioning column 3031 and positioning groove 303 on the water pump support plate 2. Then, with the help of the elastic force of the abutment spring 4011, the L-shaped abutment seat 4012 is locked in the side of the water pump mounting bracket 3012 to complete the stable connection, which greatly improves the efficiency of assembly and maintenance. At the same time, the buffer rubber pad 3021 set at the connection between the pump base 3011 and the water pump mounting bracket 3012 can effectively buffer the vibration of the water pump body 301 during operation, reduce the wear of parts, and extend the service life of the equipment.
[0035] To achieve a preliminary and stable connection between the pump body 301 and the pump mounting bracket 3012 and facilitate subsequent buffering, in this embodiment: the pump assembly 3 includes a pump body 301, with pump seats 3011 fixedly connected to both sides of the bottom of the pump body 301. A pump mounting bracket 3012 is installed at the bottom of the pump seat 3011, and the pump seat 3011 and the pump mounting bracket 3012 are fixedly connected by fixing bolts 302. By fixing the pump seat 3011 and the pump mounting bracket 3012 by fixing bolts 302, a preliminary and stable connection can be formed between the pump body 301 and the pump mounting bracket 3012, providing a foundation for the subsequent installation and stable operation of the pump as a whole, and also facilitating the setting of a buffer structure between the pump seat 3011 and the pump mounting bracket 3012.
[0036] To buffer the vibration generated by the pump body 301 during operation and reduce the impact on the pump mounting bracket 3012 and the overall structure, in this embodiment, a buffer pad 3021 is installed on the pump mounting bracket 3012 at the position corresponding to the fixing bolt 302. When the pump body 301 vibrates during operation, the buffer pad 3021 can effectively absorb and buffer the vibration energy, reduce the impact of vibration on the pump mounting bracket 3012 and the entire drainage pump structure, reduce the risk of wear and damage to components caused by vibration, and extend the service life of the equipment.
[0037] To achieve rapid and accurate horizontal positioning of the water pump mounting bracket 3012 and the water pump support plate 2, in this embodiment, the water pump mounting bracket 3012 has two positioning slots 303, and the water pump support plate 2 is fixedly connected with a positioning post 3031 that matches the positioning slot 303 at the corresponding position. The matching design of the positioning slot 303 and the positioning post 3031 allows for quick and accurate horizontal positioning of the water pump mounting bracket 3012 and the water pump support plate 2 simply by aligning the positioning slot 303 on the water pump mounting bracket 3012 with the positioning post 3031 on the water pump support plate 2 when installing the water pump body 301. This greatly improves installation efficiency and reduces adjustment time and errors during the installation process.
[0038] To facilitate the smooth insertion of the positioning post 3031 into the positioning slot 303 and improve installation convenience, in this embodiment, the top of the positioning post 3031 is designed with an arc shape. When the water pump mounting bracket 3012 is placed on the water pump support plate 2, the arc-shaped top can play a guiding role, making it easier for the positioning post 3031 to be inserted into the positioning slot 303, further improving the convenience and smoothness of installation and reducing the installation difficulty.
[0039] To achieve a secure connection between the pump mounting bracket 3012 and the pump support plate 2, ensuring the stability of the pump installation, in this embodiment: the locking and fixing assembly 4 includes a mounting base 401 fixedly connected to the pump support plate 2. A retaining spring 4011 is fixedly connected to the side of the mounting base 401, and an L-shaped retaining seat 4012 matching the pump mounting bracket 3012 is fixedly connected to the side of the retaining spring 4011. Through the elastic force of the retaining spring 4011, the L-shaped retaining seat 4012 can be locked onto the side of the pump mounting bracket 3012, thereby achieving a secure connection between the pump mounting bracket 3012 and the pump support plate 2. This locking method is simple in structure and easy to operate, effectively preventing the pump from loosening due to vibration or other reasons during use, ensuring the stability and reliability of the pump installation.
[0040] To limit the movement direction of the L-shaped abutment seat 4012, prevent its deviation, and improve the accuracy and stability of the engagement, in this embodiment: two symmetrically arranged positioning slide rods 402 are fixedly connected to the side of the L-shaped abutment seat 4012. The other end of the positioning slide rod 402 is movably inserted through the mounting base 401 and extends to the outside of the mounting base 401, where an operating rod 4021 is fixedly connected. The positioning slide rod 402 movably inserts through the mounting base 401, which can limit the movement direction of the L-shaped abutment seat 4012, allowing it to move only in a straight line along the direction of the positioning slide rod 402, preventing the L-shaped abutment seat 4012 from deviating during movement, thereby improving the accuracy and stability of the engagement. At the same time, the operating rod 4021 facilitates manual control of the movement of the L-shaped abutment seat 4012 by the operator, making it convenient for the installation and disassembly of the water pump.
[0041] The working principle of this utility model is as follows:
[0042] When installing the water pump body 301, first place the water pump mounting bracket 3012 at the bottom of the water pump body 301 onto the water pump support plate 2 on the support frame 1. At this time, the positioning groove 303 on the water pump mounting bracket 3012 cooperates with the positioning post 3031 fixedly connected to the corresponding position on the water pump support plate 2. Since the top of the positioning post 3031 is arc-shaped, it can be easily guided to insert into the positioning groove 303, thereby achieving rapid and accurate horizontal positioning of the water pump mounting bracket 3012 and the water pump support plate 2.
[0043] After positioning, under the elastic force of the abutment spring 4011, the L-shaped abutment seat 4012, which is fixedly connected to it, is driven to lock onto the side of the water pump mounting bracket 3012, thus completing the stable connection between the water pump mounting bracket 3012 and the water pump support plate 2.
[0044] Meanwhile, the buffer pad 3021 installed at the connection between the pump base 3011 and the pump mounting bracket 3012 can effectively absorb and buffer the vibration generated when the pump body 301 is working, reduce the impact of vibration on the equipment, and ensure the stable operation of the drainage pump.
[0045] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A national four emission energy-saving air-cooled diesel engine drainage pump, comprising a support frame (1), characterized in that, A water pump support plate (2) is fixedly connected to the support frame (1). A detachable water pump assembly (3) is installed on the water pump support plate (2). A snap-fit fixing assembly (4) for fixing the water pump assembly (3) is installed on the water pump support plate (2) at the position corresponding to the water pump assembly (3). The water pump assembly (3) includes a water pump body (301), and pump seats (3011) are fixedly connected to both sides of the bottom of the water pump body (301). A water pump mounting bracket (3012) is installed at the bottom of the pump seat (3011), and the pump seat (3011) and the water pump mounting bracket (3012) are fixedly connected by fixing bolts (302). The water pump mounting bracket (3012) has two positioning slots (303), and the water pump support plate (2) is fixedly connected with a positioning column (3031) that matches the positioning slot (303) at the position corresponding to the positioning slot (303). The top of the positioning post (3031) is designed with an arc shape; The snap-fit fixing assembly (4) includes a mounting base (401) fixedly connected to the water pump support plate (2), and an abutment spring (4011) fixedly connected to the side of the mounting base (401). An L-shaped abutment seat (4012) matching the water pump mounting bracket (3012) is fixedly connected to the side of the abutment spring (4011). The L-shaped abutment seat (4012) has two symmetrically arranged positioning slide rods (402) fixedly connected to its side. The other end of the positioning slide rod (402) is movably connected through the mounting base (401) and extends to the outside of the mounting base (401) and is fixedly connected to an operating rod (4021).
2. The national fourth emission energy-saving air-cooled diesel engine drain pump according to claim 1, characterized in that: A buffer pad (3021) is installed on the water pump mounting bracket (3012) at the position corresponding to the fixing bolt (302).