Injection molded case mechanical diaphragm metering pump

Abstract

The utility model belongs to diaphragm metering pump technical field especially relates to a kind of injection molding shell mechanical diaphragm metering pump, including metering pump main body, injection molding shell is provided in metering pump main body outside, the chassis plate is provided at the bottom of metering pump main body, the base is provided at the bottom of chassis plate, rotating base is rotatably connected in the middle part of base. By being provided with base at the bottom of metering pump main body, and the rotating base in the base is installed in metering pump main body, let rotating base and the rotation connection of base, realize that metering pump main body whole can rotate around rotating base axle center, to quickly adapt to the pipe interface of different direction, realize the flexible adjustment of pump body installation direction, avoid using additional pipe fitting, reduce fluid resistance, improve the measurement accuracy, and let positioning post insert into positioning groove under the action of elastic component, realize reliable locking after rotation, so that equipment can adapt to a variety of complex installation environment.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm metering pump technology, and in particular to a mechanical diaphragm metering pump with an injection-molded housing. Background Technology

[0002] In the fields of chemical engineering, water treatment, and pharmaceuticals, mechanical diaphragm metering pumps are required to accurately deliver various fluids. Their injection-molded housings are gradually replacing traditional metal housings due to their advantages such as lightweight and corrosion resistance. However, in actual applications, the installation conditions vary greatly in different scenarios. For example, pipelines in water treatment workshops are mostly laid out along walls or floors, pharmaceutical production lines need to be adapted to the compact space of clean rooms, and pipelines next to chemical reactors are often arranged in a multi-angle staggered layout. Traditional injection-molded housings use a fixed installation structure, and the position of the mounting holes and the orientation of the housing cannot be adjusted. When the direction of the on-site pipeline interface does not match the preset installation position of the pump body, it is necessary to purchase additional accessories such as elbows, reducers, and extension pipes to adjust the connection path. This not only increases material costs, but also increases fluid resistance due to the increased number of pipeline bends, affecting metering accuracy. To address these issues, we propose an injection-molded housing mechanical diaphragm metering pump. Utility Model Content

[0003] The purpose of this invention is to provide a mechanical diaphragm metering pump with an injection-molded housing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanical diaphragm metering pump with an injection-molded housing, comprising a metering pump body, an injection-molded housing on the outside of the metering pump body, a base plate at the bottom of the metering pump body, a base at the bottom of the base plate, a rotating chassis rotatably connected to the center of the base, the base plate being mounted on the rotating chassis with screws, the rotating chassis having multiple sets of positioning grooves, an mounting seat at the front end of the metering pump body, and a positioning column connected inside the mounting seat via an elastic component, the bottom end of the positioning column being inserted into the positioning groove on the rotating chassis.

[0005] As an improved technical solution, the elastic component includes guide posts fixed on both sides inside the mounting base. The mounting base is provided with a movable plate. Guide grooves are opened on both sides of the movable plate. Both sets of movable plates pass through the two sets of guide grooves on the movable plate. Return springs are wound around the outside of both sets of guide posts. A positioning post is connected to the outer wall of the rear end of the movable plate through a connecting bracket. A pull handle is installed at the front end of the movable plate.

[0006] As an improved technical solution, multiple sets of positioning grooves are distributed at equal intervals along the axis of the rotating chassis.

[0007] As an improved technical solution, the diameter of the positioning post is the same as the inner diameter of the positioning groove, and the bottom edge of the positioning post is curved.

[0008] As an improved technical solution, the injection-molded housing is made of PPE material.

[0009] As an improved technical solution, the two ends of the return spring are respectively connected to the inner wall of the mounting base and the outer wall of the movable plate, and the movable plate is elastically connected to the inner wall of the mounting base through the return spring.

[0010] As an improved technical solution, the inner wall of the guide groove is fully fitted with the outer wall of the guide post, and the movable plate is slidably connected to the two sets of guide posts through two sets of guide grooves.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are: I. This utility model features a base at the bottom of the metering pump body, with the pump body mounted on a rotating chassis within the base. This rotating chassis is connected to the base, allowing the pump body to rotate around the axis of the rotating chassis. This enables the pump body to quickly adapt to pipe interfaces in different directions, flexibly adjust the pump installation direction, avoid the use of additional pipe fittings, reduce fluid resistance, improve metering accuracy, and allow the positioning pin to be inserted into the positioning groove under the action of the elastic component, achieving reliable locking after rotation. This allows the equipment to adapt to various complex installation environments.

[0012] II. This utility model features a liftable movable plate installed within the mounting base, with two sets of return springs applying a downward elastic force to the movable plate. When the metering pump body needs to be rotated, the handle can be lifted upwards to drive the movable plate to slide upwards along the guide column. During the upward movement, the movable plate compresses the return springs. Once the positioning column is completely disengaged from the positioning groove, the injection-molded housing can be rotated. After the metering pump body rotates the rotating chassis to the required angle, the handle can be released, allowing the return spring to push the movable plate back to its original position, enabling the positioning column to re-insert into the corresponding positioning groove. This ensures that the metering pump body maintains directional stability even under vibration. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the second partial cross-sectional structure of the present invention; Figure 5 For the present utility model Figure 3 A magnified structural diagram at point A; Figure 6 For the present utility model Figure 4A magnified structural diagram at point B.

[0014] In the diagram: 1. Metering pump body; 2. Injection molded housing; 3. Base plate; 4. Base; 5. Rotating chassis; 6. Positioning groove; 7. Mounting seat; 8. Guide column; 9. Movable plate; 10. Guide groove; 11. Connecting bracket; 12. Positioning column; 13. Pull handle; 14. Return spring. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] This utility model provides a technical solution: such as Figures 1 to 6 As shown in this embodiment, a mechanical diaphragm metering pump with an injection-molded housing includes a metering pump body 1, an injection-molded housing 2 on the outside of the metering pump body 1, a base plate 3 at the bottom of the metering pump body 1, a base 4 at the bottom of the base plate 3, a rotating chassis 5 rotatably connected to the middle of the base 4, the base plate 3 being mounted on the rotating chassis 5 with screws, and multiple sets of positioning grooves 6 being formed on the rotating chassis 5, a mounting seat 7 being installed at the front end of the metering pump body 1, and a positioning post 12 being connected inside the mounting seat 7 through an elastic component, the bottom end of the positioning post 12 being inserted into the positioning groove 6 on the rotating chassis 5.

[0017] By setting a base 4 at the bottom of the metering pump body 1 and installing the metering pump body 1 in a rotating chassis 5 on the base 4, the rotating chassis 5 is rotatably connected to the base 4, so that the metering pump body 1 can rotate around the axis of the rotating chassis 5. This allows it to quickly adapt to pipe interfaces in different directions, realize flexible adjustment of the pump body installation direction, avoid the use of additional pipe fittings, reduce fluid resistance, improve metering accuracy, and allow the positioning column 12 to be inserted into the positioning groove 6 under the action of the elastic component, so as to achieve reliable locking after rotation. This allows the equipment to adapt to a variety of complex installation environments.

[0018] In other embodiments, the elastic component includes guide posts 8 fixed on both sides inside the mounting base 7. A movable plate 9 is provided inside the mounting base 7. Guide grooves 10 are provided on both sides of the movable plate 9. Both sets of movable plates 9 pass through the two sets of guide grooves 10 on the movable plate 9. A return spring 14 is wound around the outside of both sets of guide posts 8. A positioning post 12 is connected to the outer wall of the rear end of the movable plate 9 through a connecting bracket 11. A pull handle 13 is installed at the front end of the movable plate 9. By installing a liftable movable plate 9 inside the mounting base 7, and having two sets of return springs 14 apply a downward elastic force to the movable plate 9, when it is necessary to rotate the metering pump body 1, the handle 13 can be lifted upward to drive the movable plate 9 to slide upward along the guide post 8, and the movable plate 9 compresses the return spring 14 during the upward process. When the positioning post 12 is completely disengaged from the positioning groove 6, the injection molded housing 2 can be rotated. When the metering pump body 1 drives the rotating base 5 to rotate to the required angle, the handle 13 can be released, and the return spring 14 pushes the movable plate 9 to reset, allowing the positioning post 12 to re-insert into the corresponding positioning groove 6, ensuring that the metering pump body 1 can still maintain directional stability in a vibration environment.

[0019] In other embodiments, multiple sets of positioning grooves 6 are distributed at equal intervals along the axis of the rotating chassis 5; This design allows the equally spaced positioning slots 6 to lock the metering pump body 1 after rotating a certain angle, thus providing multiple installation direction options, improving installation flexibility, adapting to more pipe connection requirements at various angles, and enhancing the equipment's versatility.

[0020] In other embodiments, the diameter of the positioning post 12 is the same as the inner diameter of the positioning groove 6, and the bottom edge of the positioning post 12 is rounded. This design allows the curved positioning post 12 to be easily inserted into and removed from the positioning slot 6, effectively reducing wear, increasing service life, enhancing guidance and durability, and improving operational smoothness.

[0021] In other embodiments, the injection-molded housing 2 is made of PPE material; Due to its excellent corrosion resistance, mechanical strength, and lightweight properties, PPE material is suitable for corrosive environments such as chemical and pharmaceutical industries, extending the service life of the pump body, reducing the overall weight of the machine, and lowering transportation and installation costs.

[0022] In other embodiments, the two ends of the return spring 14 are respectively connected to the inner wall of the mounting base 7 and the outer wall of the movable plate 9, and the movable plate 9 is elastically connected to the inner wall of the mounting base 7 through the return spring 14; This design allows the return springs 14 outside the two sets of guide pillars 8 to apply a downward elastic force to the movable plate 9, so that the movable plate 9 can drive the positioning pillar 12 to insert into the positioning groove 6 on the rotating chassis 5.

[0023] In other embodiments, the inner wall of the guide groove 10 is fully fitted with the outer wall of the guide post 8, and the movable plate 9 is slidably connected to the two sets of guide posts 8 through the two sets of guide grooves 10; This design effectively prevents the movable plate 9 from swaying during movement when it rises and falls along the two sets of guide columns 8, thereby improving the stability of the movable plate 9 during its rise and fall.

[0024] This utility model provides a mechanical diaphragm metering pump with a molded housing, the specific working principle of which is as follows: Rotation adjustment mechanism: The rotating chassis 5 and the base 4 are connected by a rotating shaft, and the user can manually rotate the entire metering pump body 1 to the desired direction to adapt to different pipeline layouts.

[0025] Elastic locking mechanism: By pulling the handle 13, the movable plate 9 is compressed and the reset spring 14 is compressed, so that the positioning pin 12 is disengaged from the current positioning slot 6. When the metering pump body 1 rotates to the target angle, the handle 13 is released, so that the reset spring 14 pushes the positioning pin 12 into the corresponding positioning slot 6 to complete the locking.

[0026] The electrical components mentioned in this article are all electrically connected to an external main controller and industrial power supply, and the main controller can be a conventional known device such as a computer that provides control.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mechanical diaphragm metering pump with an injection-molded housing, comprising a metering pump body (1), characterized in that: The metering pump body (1) is provided with an injection-molded housing (2) on the outside. The metering pump body (1) is provided with a base plate (3) at the bottom end. The base plate (3) is provided with a base (4) at the bottom. The base (4) is rotatably connected to a rotating chassis (5) in the middle. The base plate (3) is installed on the rotating chassis (5) by screws, so that multiple sets of positioning grooves (6) are opened on the rotating chassis (5). The metering pump body (1) is provided with a mounting seat (7) at the front end. The mounting seat (7) is connected to a positioning column (12) through an elastic component. The bottom end of the positioning column (12) is inserted into the positioning groove (6) on the rotating chassis (5).

2. The injection-molded housing mechanical diaphragm metering pump according to claim 1, characterized in that: The elastic component includes guide posts (8) fixed inside the mounting base (7) on both sides. The mounting base (7) has a movable plate (9) inside. Guide grooves (10) are opened on both sides of the movable plate (9). The two sets of movable plates (9) pass through the two sets of guide grooves (10) on the movable plate (9). The two sets of guide posts (8) are wrapped with return springs (14). The outer wall of the rear end of the movable plate (9) is connected to a positioning post (12) through a connecting bracket (11). A handle (13) is installed at the front end of the movable plate (9).

3. The injection-molded housing mechanical diaphragm metering pump according to claim 1, characterized in that: The multiple sets of positioning grooves (6) are distributed at equal intervals along the axis of the rotating chassis (5).

4. The injection-molded housing mechanical diaphragm metering pump according to claim 1, characterized in that: The diameter of the positioning post (12) is the same as the inner diameter of the positioning groove (6), and the bottom edge of the positioning post (12) is curved.

5. The injection-molded housing mechanical diaphragm metering pump according to claim 1, characterized in that: The injection-molded housing (2) is made of PPE material.

6. The injection-molded housing mechanical diaphragm metering pump according to claim 2, characterized in that: The two ends of the reset spring (14) are respectively connected to the inner wall of the mounting base (7) and the outer wall of the movable plate (9). The movable plate (9) is elastically connected to the inner wall of the mounting base (7) through the reset spring (14).

7. The injection-molded housing mechanical diaphragm metering pump according to claim 2, characterized in that: The inner wall of the guide groove (10) is fully fitted with the outer wall of the guide post (8), and the movable plate (9) is slidably connected to the two guide posts (8) through the two sets of guide grooves (10).

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