Water pump preassembling tool

By designing the clearance holes, positioning posts, and protruding structures of the pre-installed water pump fixture, the problems of limited screw tightening and time-consuming hole alignment in the assembly line operation of air conditioning water pumps are solved, achieving complete screw tightening and efficient installation.

CN224223740UActive Publication Date: 2026-05-12QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Filing Date
2025-05-22
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The screw tightening of air conditioning water pumps is restricted in assembly line operations, posing a safety hazard, and the time-consuming hole alignment leads to low production efficiency.

Method used

Design a water pump pre-assembly fixture that, by setting clearance holes and positioning posts and protruding structures, enables the pre-assembly of the water pump and water pump bracket, avoiding screw interference and accurately positioning the fixing holes.

Benefits of technology

Ensure screws are fully tightened to improve connection reliability and safety, save installation time, and increase production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air conditioner production, and discloses a water pump preassembling tool which comprises an operation table and at least one set of positioning structures arranged on the operation table, each positioning structure comprises a plurality of positioning columns, a plurality of receding holes and a protruding structure, and the positioning columns are used for being matched with mounting holes of a water pump support; the positions of the avoiding holes respectively correspond to the fixing holes of the water pump bracket, the fixing holes of the water pump and fixing screws penetrating through the fixing holes to form avoiding spaces; a positioning face is formed on the side face of the protruding structure, and the positioning face is configured to be in contact positioning with the side wall face of the water pump and used for aligning the fixing hole of the water pump support with the fixing hole of the water pump. According to the water pump preassembling tool, the water pump and the water pump support can be assembled in advance, the avoiding holes are formed, interference between fixing screws and an operation table in the screwing process is avoided, and it is ensured that the screws can be fastened in place; through cooperation of the positioning columns and the protruding structures, the fixing holes of the water pump and the water pump support can be aligned in advance, the follow-up installation operation time is saved, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioning production technology, and in particular to a water pump pre-assembly fixture. Background Technology

[0002] Currently, air conditioning water pumps are typically fixed in place using pump brackets. However, the traditional pump mounting process, especially in assembly line environments, presents the following technical challenges:

[0003] 1. Restricted screw tightening poses a safety hazard: Due to the limitations of the production line, the screws securing the water pump may interfere with the production line during tightening, preventing them from being fully tightened. This can result in an unstable connection, and over time, it may lead to safety hazards such as the water pump loosening, abnormal noise, or even detachment.

[0004] 2. Time-consuming hole alignment leads to low production efficiency: When assembling and fixing the water pump and pump bracket, manually locating the positions of each fixing hole requires a certain amount of operation time and precision. Especially in mass production, repetitive hole alignment operations significantly reduce overall production efficiency. Utility Model Content

[0005] Addressing the technical problems of limited screw tightening and time-consuming hole alignment when fixing water pumps and pump brackets in existing technologies, this utility model provides a pre-assembly fixture for water pumps. This fixture pre-assembles the water pump and pump bracket together. By providing clearance holes, interference between the fixing screws and the operating table during tightening is avoided, ensuring the screws are fully tightened. The combination of positioning posts and protruding structures allows for pre-alignment of the fixing holes on the water pump and pump bracket, saving subsequent installation time and improving production efficiency.

[0006] This utility model provides a water pump pre-assembly fixture for pre-assembling a water pump and a water pump bracket, comprising:

[0007] Control panel;

[0008] At least one positioning structure is disposed on the operating table, including:

[0009] Multiple positioning pins are used to mate with the mounting holes of the water pump bracket;

[0010] Multiple clearance holes are positioned to form clearance spaces corresponding to the fixing holes of the water pump bracket, the fixing holes of the water pump, and the fixing screws that pass through both.

[0011] The protruding structure has a positioning surface formed on its side, which is configured to contact and position with the side wall of the water pump, so as to align the fixing hole of the water pump bracket with the fixing hole of the water pump.

[0012] In some embodiments, the protrusion structure has a side plate portion connected to the operating table and a top plate portion connected to the top of the side plate portion, the side of the top plate portion forming the positioning surface.

[0013] In some embodiments, the top plate has a hollowed-out area.

[0014] In some embodiments, the top plate portion has a fan-shaped cross-section, and the inner arc surface of the top plate portion constitutes the positioning surface; the side plate portion extends downward along the outer arc edge of the top plate portion.

[0015] In some embodiments, the positioning post and the clearance hole are located on the operating table outside the vertical projection range of the protruding structure on the operating table.

[0016] In some embodiments, the sidewall of the water pump is provided with a lug, and the positioning surface is provided with a groove adapted to the lug.

[0017] In some embodiments, the top of the positioning post is provided with a guide ramp.

[0018] In some embodiments, the operating console is provided with two positioning structures, which are arranged in a mirror-symmetrical manner.

[0019] In some embodiments, two positioning posts are provided, with each positioning post positioned close to a corresponding clearance hole.

[0020] In some embodiments, the depth of the clearance hole is greater than the protruding height of the fixing screw after it is tightened.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are:

[0022] The aforementioned pre-assembly fixture for water pumps allows for the pre-assembly of the water pump and its support. By incorporating clearance holes, interference between the fixing screws and the control panel during tightening is effectively avoided, ensuring that the screws are fully tightened and improving the reliability and safety of the connection. The combination of positioning posts and protruding structures allows for accurate pre-alignment of the fixing holes of the water pump and its support, saving workers time during subsequent installation and improving production efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the water pump support structure;

[0025] Figure 2 A perspective view of the pre-assembly fixture for the water pump of this utility model;

[0026] Figure 3 This is a top view of the pre-assembly fixture for the water pump of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the water pump pre-assembly fixture of this utility model after the water pump bracket is placed on it;

[0028] Figure 5 This is a diagram showing the state after the water pump bracket is placed on the pre-assembly fixture of the water pump according to this utility model, and then the water pump is placed on it.

[0029] Figure 6 The diagram shows the water pump bracket on the pre-assembly tooling of this utility model and the state of the water pump after pre-assembly.

[0030] Figure 7 for Figure 6 Top view;

[0031] Explanation of reference numerals in the attached figures:

[0032] 100 - Water pump; 110 - Water pump mounting hole; 120 - Lug;

[0033] 200 - Pump bracket; 210 - Pump bracket fixing hole; 220 - Mounting hole;

[0034] 300-Fixing Screw;

[0035] 400 - Pre-assembled tooling for water pumps;

[0036] 410 - Control Panel;

[0037] 420 - Positioning post; 421 - Guide ramp.

[0038] 430 - Clearance Hole;

[0039] 440 - Protruding structure; 441 - Side plate; 442 - Top plate; 443 - Positioning surface; 4431 - Groove; 444 - Hollowed-out area. Detailed Implementation

[0040] 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.

[0041] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0042] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" 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.

[0044] Reference Figures 1-7 This is an embodiment of the water pump pre-assembly fixture 400 of this utility model, which aims to solve the problems of screws being difficult to tighten completely and low installation efficiency when fixing the air conditioner water pump 100 and the water pump bracket 200.

[0045] like Figure 1 The diagram shown is a structural schematic of the water pump bracket 200; Figure 2 and Figure 3 The diagram shows the structure of the water pump pre-assembly fixture 400 of this utility model.

[0046] The water pump pre-assembly fixture 400 is used for the pre-assembly of the water pump 100 and the water pump bracket 200, and includes an operating table 410 and at least one set of positioning structures disposed on the operating table 410.

[0047] The control panel 410 serves as the basic support platform for pre-installed operations.

[0048] The positioning structure includes multiple positioning posts 420, multiple clearance holes 430, and a protruding structure 440.

[0049] The positioning post 420 is fixedly installed on the operating table 410 and is used to cooperate with the mounting hole 220 of the water pump bracket 200 to achieve preliminary and reliable positioning of the water pump bracket 200 on the operating table 410. The mounting hole 220 on the water pump bracket 200 can be a round hole or a notch with a partial round hole located on the edge of the water pump bracket 200, used to fix the water pump bracket 200 to the equipment.

[0050] The clearance hole 430 is positioned on the operating table 410 to correspond to the fixing hole 210 of the water pump bracket to be pre-installed and the fixing hole 110 of the water pump to be installed later. It is used to provide operating space for the installation and tightening of the fixing screw 300 during the pre-installation process, so as to avoid interference between the screw and the operating table 410.

[0051] The protruding structure 440 has a positioning surface 443 formed on at least one side. The positioning surface 443 is configured to contact and position with the side wall of the water pump 100, thereby achieving precise positioning of the water pump 100 in the horizontal direction and ensuring that the fixing hole 210 of the water pump bracket and the fixing hole 110 of the water pump can be accurately aligned.

[0052] See Figure 4 During pre-assembly, the mounting holes 220 on the water pump bracket 200 are first aligned and placed on the corresponding positioning posts 420 on the operating table 410. Through the cooperation of the positioning posts 420 and the mounting holes 220, the water pump bracket 200 is initially fixed. Furthermore, the fixing holes on the water pump bracket 200 are aligned with the clearance holes 430 on the operating table 410.

[0053] See Figure 5 and Figure 6 Then, the water pump 100 to be installed is placed in the corresponding area preset on the operating table 410. The outer contour of the water pump 100 fits into the positioning surface 443 of the protruding structure 440. Under the constraint of the positioning surface 443, the position of the water pump 100 in the horizontal direction is limited, so that the fixing hole 110 of the water pump can be aligned with the mounting hole 220 of the water pump bracket 200.

[0054] After completing the above positioning, the operator can easily screw in the fixing screws 300 through the clearance hole 430 to reliably install and fix the water pump 100 and the water pump bracket 200 together. After fixing, the pre-assembled water pump 100 and water pump bracket 200 can be removed from the tooling as a whole for the subsequent air conditioning assembly process.

[0055] The aforementioned water pump pre-assembly fixture 400 can pre-assemble the water pump 100 and the water pump bracket 200 together. By setting the clearance hole 430, interference between the fixing screw 300 and the operating table 410 during the tightening process is effectively avoided, ensuring that the screw can be fully tightened in place, thus improving the reliability and safety of the connection. Through the cooperation of the positioning column 420 and the protruding structure 440, the fixing holes 210 of the water pump 100 and the water pump bracket can be accurately aligned in advance, saving workers' hole alignment time during subsequent installation and improving production efficiency.

[0056] In some embodiments of this application, such as Figure 2 As shown, the protruding structure 440 has a side plate portion 441 connected to the operating table 410 and a top plate portion 442 connected to the top of the side plate portion 441. The side of the top plate portion 442 forms a positioning surface 443 for fitting against the side wall surface of the water pump 100. A certain height gap is reserved between the bottom of the top plate portion 442 and the table surface of the operating table 410 to avoid the outer edge of the water pump bracket 200 placed on the operating table 410, thereby ensuring that the water pump bracket 200 can be placed stably, avoiding interference with the protruding structure 440, and ensuring the smooth progress of the pre-assembly process.

[0057] Furthermore, a hollow area 444 is provided on the top plate 442. The hollow area 444 not only serves as an observation window to facilitate checking whether the water pump bracket 200 is placed in the correct position, but also effectively reduces the overall weight of the protruding structure 440, making it easier to handle and operate the tooling.

[0058] In some embodiments of this application, the top plate portion 442 has a fan-shaped cross-section, and the inner arc surface of the top plate portion 442 forms a positioning surface 443, which is adapted to the arc-shaped sidewall of the water pump 100. The side plate portion 441 extends downward along the outer arc edge of the top plate portion 442 and connects to the operating table 410. The protruding structure 440 is a fan-shaped structure, which can significantly improve the overall strength and rigidity of the structure, ensuring that no deformation occurs during the positioning process of the water pump 100, thereby ensuring the accuracy and reliability of the positioning.

[0059] In some embodiments of this application, such as Figure 3 As shown, the positioning post 420 and the clearance hole 430 are both located outside the vertical projection range of the protruding structure 440 on the operating table 410. This layout effectively expands the operating space, making it more convenient for operators to place and fix the water pump 100 and the water pump bracket 200, avoiding interference with the protruding structure 440, and improving the convenience and efficiency of operation.

[0060] In some embodiments of this application, such as Figure 5 and Figure 7As shown, at least one lug 120 is provided on the side wall of the water pump 100. Correspondingly, the positioning surface 443 of the positioning protrusion is provided with a groove 4431 that matches the shape and position of the lug 120. Through the fitting of the lug 120 and the groove 4431, the axial rotation of the water pump 100 in the water surface can be effectively restricted, ensuring that the water pump 100 maintains the correct position during pre-assembly and preventing movement when the fixing screw 300 is tightened.

[0061] In some embodiments of this application, the top of the positioning post 420 is provided with a guide ramp 421. The guide ramp 421 can guide the mounting hole 220 on the water pump bracket 200 to slide more smoothly into the positioning post 420. Even if there is a slight deviation in the initial alignment, the guide effect of the ramp can achieve quick and accurate positioning, thereby improving the convenience and efficiency of placing the water pump bracket 200.

[0062] In some embodiments of this application, two positioning posts 420 are provided, and each positioning post 420 is located adjacent to a corresponding clearance hole 430. The clearance hole 430 is located adjacent to the positioning post 420, which can effectively reduce the positional deviation between the fixing hole of the water pump bracket 200 and the clearance hole 430 on the operating table 410 after the water pump bracket 200 is initially positioned by the positioning post 420, thereby significantly improving the alignment accuracy of the two.

[0063] In some embodiments of this application, the depth of the clearance hole 430 is greater than the protruding height of the fixed screw 300 after it is tightened, which can fully accommodate the tightened fixed screw 300 and ensure that the screw will not interfere with the surface of the operating table 410. This ensures that the screw can be fully tightened into place, thereby achieving reliable fixation between the water pump 100 and the water pump bracket 200.

[0064] The control panel 410 is equipped with two positioning structures, which are arranged in a mirror symmetrical manner. This allows for pre-installation to be performed by two people on opposite sides of the control panel 410, such as on the left and right.

[0065] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A water pump pre-assembly fixture for pre-assembling a water pump and a water pump bracket, characterized in that, include: Control panel; At least one positioning structure is disposed on the operating table, including: Multiple positioning pins are used to mate with the mounting holes of the water pump bracket; Multiple clearance holes are positioned to form clearance spaces corresponding to the fixing holes of the water pump bracket, the fixing holes of the water pump, and the fixing screws that pass through both. The protruding structure has a positioning surface formed on its side, which is configured to contact and position with the side wall of the water pump, so as to align the fixing hole of the water pump bracket with the fixing hole of the water pump.

2. The water pump pre-assembly fixture according to claim 1, characterized in that, The protruding structure has a side plate portion connected to the operating table and a top plate portion connected to the top of the side plate portion, and the side of the top plate portion forms the positioning surface.

3. The water pump pre-assembly fixture according to claim 2, characterized in that, The top plate has a hollowed-out area.

4. The water pump pre-assembly fixture according to claim 3, characterized in that, The top plate has a fan-shaped cross-section, and the inner arc surface of the top plate forms the positioning surface; the side plate extends downward along the outer arc edge of the top plate.

5. The water pump pre-assembly fixture according to claim 1, characterized in that, The positioning post and the clearance hole are located outside the vertical projection range of the protruding structure on the operating table.

6. The water pump pre-assembly fixture according to claim 2, characterized in that, The side wall of the water pump is provided with a lug, and the positioning surface is provided with a groove that matches the lug.

7. The water pump pre-assembly fixture according to claim 1, characterized in that, The top of the positioning post is provided with a guide slope.

8. The water pump pre-assembly fixture according to claim 1, characterized in that, The operating console is equipped with two positioning structures, which are arranged in a mirror-symmetric manner.

9. The water pump pre-assembly fixture according to claim 1, characterized in that, There are two positioning posts, and each positioning post is positioned close to the corresponding clearance hole.

10. The water pump pre-assembly fixture according to claim 1, characterized in that, The depth of the clearance hole is greater than the protrusion height of the fixing screw after it is tightened.