Pump body pressing structure of gas heat pump

The structure of the downward-moving horizontal plate and the downward-pressing vertical plate driven by an electric cylinder solves the problems of warping and bolt gaps during the installation of the canned motor, and achieves stable installation and precise contact between the pump body and the motor.

CN223767775UActive Publication Date: 2026-01-06ANHUI SHINHOO CANNED MOTOR PUMP CO LTD
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Patent Information

Application Number
CN202520212466.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2026-01-06
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

During the installation of the canned motor pump, tightening the bolts on one side can cause warping and over-tightening, affecting the installation quality and creating gaps in the bolts at the mating surfaces.

Method used

The pump body and motor mounting bracket are designed with a downward-moving horizontal plate and a downward-pressing vertical plate driven by an electric cylinder. The bolt mounting slots and contour positioning blocks ensure a precise fit between the pump body and the motor mounting bracket, preventing warping and falling off. The operation of the electric cylinder is controlled by a controller.

Benefits of technology

This ensures stable installation of the pump body and motor, preventing warping and falling off, and guaranteeing installation quality and precise contact.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gas heat pump body pressing structure, and relates to the technical field of shield pumps, in particular to a gas heat pump body pressing structure which comprises a base, a motor mounting frame and a pump body, a profiling positioning block is fixedly connected to the middle of the top of the base, and the pump body is placed above the profiling positioning block. The pump body is connected with the motor mounting frame through bolts, an electric air cylinder is fixedly connected to the top of the base, a connecting part is fixedly connected to the top of the electric air cylinder, and a downward moving transverse plate located over the motor mounting frame and the pump body is fixedly connected to the top of the connecting part; a motor mounting frame and a pump body can penetrate through the middle of a downward moving transverse plate, and the middle of the downward moving transverse plate is fixedly connected with a downward pressing vertical plate. Under the driving of the output shaft of the electric air cylinder, the downward moving transverse plate and the downward pressing vertical plate can be pressed downwards, so that the motor mounting frame and the pump body can be pressed and attached to each other, and the condition of edge warping generated when a single-side bolt is mounted is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of shielded pump technology, specifically a gas heat pump body compression structure. Background Technology

[0002] Ordinary centrifugal pumps are driven by connecting the pump impeller shaft to the motor shaft via a coupling, causing the impeller and motor to rotate together. Canned motor pumps, however, are sealless pumps. Both the pump and the drive motor are sealed within a pressure vessel filled with the pumped medium. This pressure vessel has only a static seal, and a wiring harness provides the rotating magnetic field to drive the rotor. The tight fit between the pump body and the motor in a canned motor pump determines the pump's quality. Simultaneously, as a pressure vessel, it ensures that the pump body and drive motor are completely enclosed within an environment filled with the pumped medium, thus achieving complete leak-free operation. During pump body assembly, especially when installing bolts, the pressure generated after tightening the first bolt can cause uneven stress on the other side, resulting in warping. Such installation can easily lead to overtightening of bolts, stripping, and gaps in the bolt mating surfaces, thus affecting the installation quality. Therefore, we propose a gas-heated pump body clamping structure. Utility Model Content

[0003] This invention provides a pressing structure for a gas-fired heat pump body, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gas heat pump body pressing structure, comprising a base, a motor mounting bracket, and a pump body. A contour positioning block is fixedly connected to the middle of the top of the base, and the pump body is placed above the contour positioning block. The pump body and the motor mounting bracket are connected by bolts. An electric cylinder is fixedly connected to the top of the base, and a connecting component is fixedly connected to the top of the electric cylinder. A downward sliding horizontal plate is fixedly connected to the top of the connecting component, located directly above the motor mounting bracket and the pump body. The motor mounting bracket and the pump body can pass through the middle of the downward sliding horizontal plate. A downward pressing vertical plate is fixedly connected to the middle of the downward sliding horizontal plate, and the bottom of the downward pressing vertical plate can abut against the top of the pump body to press down the pump body and the motor mounting bracket.

[0005] Optionally, the electric cylinders are located on opposite sides of the positioning fixture, and their connecting parts are fixed on the output shaft of the electric cylinders.

[0006] Optionally, a contoured positioning block is fixedly connected to the top of the positioning fixture. The contoured positioning block is adapted to the shape of the pump body to allow the pump body to be placed stably. The bottom of the lowering horizontal plate can contact the top of the contoured positioning block. When the lowering horizontal plate contacts the contoured positioning block, the motor mounting bracket contacts the lowering vertical plate.

[0007] Optionally, the lower horizontal plate has a through-hole for mounting, through which the motor mounting bracket and pump body can pass. The lower vertical plate has a through-hole for bolts to pass through where it overlaps with the mounting hole.

[0008] Optionally, an outer frame is fixedly connected to the top of the base, and the outer frame is spliced ​​together from multiple horizontal and vertical straight strip profiles.

[0009] Optionally, the top and front of the outer frame are open, and a controller is provided on the front of the outer frame, which is electrically connected to the electric cylinder.

[0010] This utility model has the following beneficial effects:

[0011] 1. The pump body clamping structure of this gas heat pump, driven by the output shaft of the electric cylinder, allows the lower horizontal plate and the lower vertical plate to be pressed down, so that the motor mounting bracket and the pump body can be pressed tightly together, avoiding the warping of the edges when installing bolts on one side, ensuring precise contact and installation of the pump body and motor, thereby ensuring the quality of its installation.

[0012] 2. The pump body clamping structure of this gas heat pump allows the motor mounting bracket and pump body to pass through the mounting slot by moving the lower horizontal plate downward. Under the pressure of the lower vertical plate, the pump body can be restricted, preventing it from falling off under the downward pressure, thus making its installation more stable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the lower horizontal plate connection of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure of the contour positioning block of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure of the connecting components of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure at point A of this utility model.

[0018] In the diagram: 1. Base; 2. Outer frame; 3. Controller; 4. Electric cylinder; 5. Lowering horizontal plate; 6. Lowering vertical plate; 7. Positioning fixture; 8. Contour positioning block; 9. Connecting component; 10. Motor mounting bracket; 11. Pump body; 12. Mounting slot; 13. Bolt mounting slot. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 5 A gas-fired heat pump body clamping structure includes a base 1, a motor mounting bracket 10, and a pump body 11. A contour positioning block 8 is fixedly connected to the middle of the top of the base 1, and the pump body 11 is placed on top of the contour positioning block 8. The pump body 11 is connected to the motor mounting bracket 10 by bolts. The motor mounting bracket 10 and the pump body 11 are fixedly fixed by bolts to realize the installation of the pump body 11 and the motor. An electric cylinder 4 is fixedly connected to the top of the base 1, and a connecting component 9 is fixedly connected to the top of the electric cylinder 4. A downward moving horizontal plate 5 located directly above the motor mounting bracket 10 and the pump body 11 is fixedly connected to the top of the connecting component 9. Under the drive of the electric cylinder 4, the connecting component 9 can move. The movement of the connecting component 9 causes the lowering horizontal plate 5 to rise and fall, and the motor mounting bracket 10 and pump body 11 can pass through the middle of the lowering horizontal plate 5. A pressing vertical plate 6 is fixedly connected to the middle of the lowering horizontal plate 5. The bottom of the pressing vertical plate 6 can abut against the top of the pump body 11, pressing down on the pump body 11 and the motor mounting bracket 10. The lowering horizontal plate 5 causes the pressing vertical plate 6 to rise and fall, thus achieving the functions of pressing down and releasing. The pressing down of the pressing vertical plate 6 allows the motor mounting bracket 10 and the pump body 11 to press tightly against each other, avoiding the situation of warping when installing bolts on one side.

[0021] Please see Figures 1 to 5 Electric cylinders 4 are located on opposite sides of the positioning fixture 7. Their connecting parts 9 are fixed on the output shaft of electric cylinders 4, so that the connecting parts 9 can be raised and lowered under the drive of the output shaft of electric cylinders 4. Electric cylinders 4 are existing technology and will not be described in detail here.

[0022] Please see Figures 1 to 5 The top of the positioning fixture 7 is fixedly connected to a contour positioning block 8, which is adapted to the shape of the pump body 11 to allow the pump body 11 to be placed stably. The bottom of the lower horizontal plate 5 can contact the top of the contour positioning block 8. When the lower horizontal plate 5 contacts the contour positioning block 8, the motor mounting bracket 10 contacts the lower vertical plate 6, thereby allowing the lower horizontal plate 5 to relatively restrict the pump body 11 and prevent it from falling off under the action of downward pressure.

[0023] Please see Figures 1 to 5A mounting slot 12 is provided through the middle of the lower horizontal plate 5, through which the motor mounting bracket 10 and the pump body 11 can pass. A bolt mounting slot 13 is provided through the point where the lower vertical plate 6 overlaps with the mounting slot 12, allowing bolts to pass through. This allows the lower horizontal plate 5 to pass smoothly through the motor mounting bracket 10 and the pump body 11, and enables the lower vertical plate 6 to be pressed down stably.

[0024] Please see Figures 1 to 5 The top of the base 1 is fixedly connected to an outer frame 2, which is made of multiple horizontal and vertical straight strip profiles. The outer frame 2 can provide protection during the installation between the motor mounting bracket 10 and the pump body 11.

[0025] Please see Figures 1 to 5 The top and front of the outer frame 2 are open, and a controller 3 is provided on the front of the outer frame 2. The controller 3 is electrically connected to the electric cylinder 4. Through the controller 3, the electric cylinder 4 can be controlled to make its operation more convenient.

[0026] In summary, the pump body clamping structure of this heat pump is used by placing the pump body 11 on top of the contour positioning block 8, then aligning the motor mounting bracket 10 with the pump body 11 and placing it on the pump body 11. Subsequently, the controller 3 controls the operation of the electric cylinder 4. The output shaft of the electric cylinder 4 drives the connecting component 9 to move downward. Under the drive of the connecting component 9, the lowering horizontal plate 5 can move downward, allowing the motor mounting bracket 10 and the pump body 11 to pass through the mounting slot 12. Under the drive of the lowering horizontal plate 5, the lowering vertical plate 6 can move downward and abut against the motor mounting bracket 10, so that the motor mounting bracket 10 and the pump body 11 can be clamped together. Then, the bolts are installed through the bolt mounting slot 13.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat pump body compression structure, comprising a base (1), a motor mounting frame (10), a pump body (11), the middle of the top of the base (1) is fixedly connected with a profiling positioning block (8), the pump body (11) is placed above the profiling positioning block (8), and the pump body (11) is connected with the motor mounting frame (10) through bolts, characterized in that: The bottom (1) top fixedly connected with electric cylinder (4), the electric cylinder (4) top fixedly connected with connecting parts (9), the connecting parts (9) top fixedly connected with the lower moving horizontal plate (5) in the motor mounting bracket (10) and pump body (11) directly above, its motor mounting bracket (10) and pump body (11) can pass through the middle of lower moving horizontal plate (5), the lower moving horizontal plate (5) middle fixedly connected with the lower vertical plate (6), the lower vertical plate (6) bottom can with the top of pump body (11) abut, pump body (11) and motor mounting bracket (10) are pressed down. ​ 2. The heat pump pump body hold-down structure of claim 1, wherein: The electric cylinder (4) is located on the left and right opposite sides of the positioning tooling (7) respectively, and the connecting part (9) is fixed on the output shaft of the electric cylinder (4).

3. The heat pump pump body compression structure of claim 2, wherein: The top of the positioning tooling (7) is fixedly connected with the profiling positioning block (8), the profiling positioning block (8) is adapted to the shape of the pump body (11) for placing the pump body (11), and the bottom of the lower moving horizontal plate (5) can contact the top of the profiling positioning block (8), when the lower moving horizontal plate (5) contacts the profiling positioning block (8), the motor mounting bracket (10) contacts the lower vertical plate (6).

4. The heat pump pump body compression structure of claim 3, wherein: The middle of the lower moving horizontal plate (5) is provided with an installation slot (12), the motor mounting bracket (10) and the pump body (11) can pass through the installation slot (12), and the lower vertical plate (6) and the installation slot (12) are coincided with the bolt installation slot (13) through which the bolt passes.

5. The heat pump pump body compression structure of claim 4, wherein: The top of the base (1) is fixedly connected with the outer frame (2), the outer frame (2) is spliced by a plurality of horizontal and vertical straight strip-shaped profiles.

6. The heat pump body compression structure of claim 5, wherein: The top and front of the outer frame (2) are open, and the controller (3) is arranged on the front of the outer frame (2), and the controller (3) is electrically connected with the electric cylinder (4).