Miniature brushless oil pump oil nozzle and oil nozzle quick-mounting tool

By designing oil inlet and outlet nozzles with the same external diameter but different internal through holes, and combining hexagonal blocks and quick-installation tools for oil nozzles, the problems of tightening difficulties and wasted space in the oil inlet and outlet nozzles of miniature brushless oil pumps were solved, achieving rapid installation and cost control.

CN223868161UActive Publication Date: 2026-02-03XUHUAI AVIATION (SUQIAN) CO LTD
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Patent Information

Application Number
CN202520700151.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-02-03
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

Existing miniature brushless oil pumps have problems such as difficulty in tightening the inlet and outlet nozzles, large space occupation, and high cost.

Method used

The oil inlet and outlet nozzles have the same external shape but different internal through holes, with the oil inlet through hole being larger than the oil outlet through hole. Combined with the hexagonal block design, and using the internal hexagonal slot of the oil nozzle quick-installation tool to match the hexagonal block, quick installation can be achieved.

Benefits of technology

It simplifies the installation process, reduces space requirements, lowers costs, and improves installation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223868161U_ABST
Patent Text Reader

Abstract

The utility model relates to a miniature brushless oil pump oil nozzle and an oil nozzle quick-mounting tool, and belongs to the technical field of oil pump oil nozzles, the miniature brushless oil pump oil nozzle comprises an oil inlet nozzle and an oil outlet nozzle which are mounted on an oil pump, and the oil inlet nozzle is formed by coaxially and fixedly connecting a connector I, a hexagonal block I and two conical pipes I which are sequentially arranged from bottom to top; a cylindrical oil inlet through hole is formed in the oil inlet nozzle, the oil inlet through hole sequentially penetrates through the interiors of the first connector, the first hexagonal block and the two first conical pipes, the first hexagonal block is hexagonal, and external threads are arranged on the periphery of the first connector; the structure of the oil outlet nozzle is the same as that of the oil inlet nozzle, a cylindrical oil outlet through hole is formed in the oil inlet nozzle, and the hole diameter of the oil inlet through hole is larger than that of the oil outlet through hole. The oil inlet nozzle and the oil outlet nozzle which are the same in external shape are adopted, only internal through holes are different, oil inlet is facilitated, cost control is facilitated, and the installation space is reduced; the bottoms of the oil inlet nozzle and the oil outlet nozzle adopt hexagonal block design, are matched with an oil nozzle quick-mounting tool for use, and can be quickly mounted in a narrow space.
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Description

TECHNICAL FIELD

[0001] The utility model relates to oil pump oil nozzle technical field especially relates to a kind of micro brushless oil pump oil nozzle and oil nozzle quick tool. BACKGROUND

[0002] Micro brushless oil pump is a kind of both portable and compact pump, is widely used in model engine and other small devices. Oil inlet nozzle and oil outlet nozzle on micro brushless oil pump play a vital role in engine;Oil inlet nozzle is responsible for introducing fuel, and oil outlet nozzle then delivers fuel to each part of engine.

[0003] The oil inlet nozzle and oil outlet nozzle of existing oil pump some adopt two identical matched oil nozzles, through-hole is same, and bottom is designed as cylindrical shape, matched oil nozzle with bottom as cylindrical shape, not easy to tighten thread, and oil inlet and outlet through-hole size is consistent, not conducive to oil inlet;

[0004] Some adopt two different hexagonal matched oil nozzles, bottom is designed as hexagonal, matched oil nozzle with bottom as hexagonal, size increases, leading to oil pump related size also increases, occupies space, wastes material and cost. INVENTION CONTENTS

[0005] The utility model discloses a kind of micro brushless oil pump oil nozzle and oil nozzle quick tool, to solve the problem raised in above-mentioned background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of micro brushless oil pump oil nozzle, including the oil inlet nozzle and oil outlet nozzle installed on oil pump, the oil inlet nozzle is coaxially fixed connection from bottom to top by connecting head one, hexagonal block one and two sequentially arranged conical pipe one, the oil inlet nozzle is provided with cylindrical oil inlet through-hole, the oil inlet through-hole sequentially penetrates the inside of connecting head one, hexagonal block one and two conical pipe one, the hexagonal block one is hexagonal in shape, the connecting head one is provided with outer thread on periphery;

[0008] The structure of the oil outlet nozzle is same with the oil inlet nozzle, the oil outlet nozzle is coaxially fixed connection from bottom to top by connecting head two, hexagonal block two and two sequentially arranged conical pipe two, the oil inlet nozzle is provided with cylindrical oil outlet through-hole, the oil outlet through-hole sequentially penetrates the inside of connecting head two, hexagonal block two and two conical pipe two, the hexagonal block two is hexagonal in shape, the connecting head two is provided with outer thread on periphery, the aperture of the oil inlet through-hole is greater than the aperture of the oil outlet through-hole.

[0009] Preferably, the outer thread on the connecting head one and the connecting head two corresponds to the inner thread of oil inlet and outlet of oil pump, and the oil inlet nozzle and the oil outlet nozzle are connected to the oil pump by horizontal interval thread.

[0010] Preferably, the inner diameter of the oil inlet hole is 1.80 cm, and the inner diameter of the oil outlet hole is 1.50 cm.

[0011] A quick-installation tool for grease fittings is provided for installing the aforementioned grease inlet and outlet nozzles to accelerate the installation efficiency. The tool includes an installation sleeve comprising a cylindrical body. One end of the cylindrical body has an internal hexagonal slot, and a grease fitting cavity extends from the internal hexagonal slot to the other end of the cylindrical body. The size of the grease fitting cavity is smaller than the size of the internal hexagonal slot. The size of the grease fitting cavity matches the sizes of the first and second tapered tubes, and the internal hexagonal slot matches the sizes of the first and second hexagonal blocks.

[0012] Preferably, the distance between the outer wall of the cylinder and the inner wall of the hexagonal slot is less than the interval between hexagonal block one and hexagonal block two on the oil pump.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model uses two oil inlet and oil outlet nozzles with the same external shape, only the internal through holes are different. The oil inlet through hole is larger than the oil outlet through hole, which is conducive to oil intake, and also facilitates cost control and reduces the installation space.

[0015] The bottom of the oil inlet and outlet nozzles features a hexagonal block design, which is used in conjunction with the oil nozzle quick-installation tool. The internal hexagonal slot inside the cylinder is compatible with the hexagonal block. The oil nozzle enters the oil nozzle cavity inside the cylinder, and rotating the cylinder allows the oil nozzle to be locked in a narrow space via threads, making installation quick and easy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the oil inlet nozzle structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the oil inlet nozzle of this utility model;

[0018] Figure 3 This is a schematic diagram of the oil outlet structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the oil outlet nozzle of this utility model;

[0020] Figure 5 This is a schematic diagram of the mounting sleeve structure of this utility model;

[0021] Figure 6 This is a sectional view of the mounting sleeve of this utility model;

[0022] Figure 7 This is a cross-sectional view of the installation sleeve fitting into the oil inlet nozzle of this utility model;

[0023] Figure 8This is a schematic diagram of the oil inlet and outlet nozzles of this utility model installed on the oil pump;

[0024] Figure 9 This is a schematic diagram of the installation sleeve for mounting the oil inlet nozzle according to this utility model.

[0025] Figure Labels

[0026] 1. Oil inlet nozzle, 11. Connector 1, 12. Hexagonal block 1, 13. Tapered tube 1, 14. Oil inlet through hole, 2. Oil outlet nozzle, 21. Connector 2, 22. Hexagonal block 2, 23. Tapered tube 2, 24. Oil outlet through hole, 3. Mounting sleeve, 31. Cylinder body, 32. Internal hexagonal groove, 33. Oil nozzle cavity, 4. Oil pump. Detailed Implementation

[0027] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0028] like Figures 1-4 As shown, a miniature brushless oil pump 4 has an oil nozzle, including an oil inlet nozzle 1 and an oil outlet nozzle 2 installed on the oil pump 4. The oil inlet nozzle 1 is coaxially fixedly connected from bottom to top by a connector 11, a hexagonal block 12 and two tapered tubes 13 arranged in sequence. A cylindrical oil inlet hole 14 is opened in the oil inlet nozzle 1. The oil inlet hole 14 passes through the interior of the connector 11, the hexagonal block 12 and the two tapered tubes 13 in sequence. The hexagonal block 12 is hexagonal in shape to facilitate installation. The connector 11 is provided with external threads on its outer periphery.

[0029] The structure of the oil outlet 2 is the same as that of the oil inlet 1. The oil outlet 2 is coaxially fixedly connected from bottom to top by a connector 21, a hexagonal block 22, and two tapered tubes 23 arranged in sequence. The oil inlet 1 has a cylindrical oil outlet hole 24. The oil outlet hole 24 passes through the interior of the connector 21, the hexagonal block 22, and the two tapered tubes 23 in sequence. The hexagonal block 22 is hexagonal in shape, which is convenient for installation. The connector 21 has external threads on its outer periphery. The diameter of the oil inlet hole 14 is larger than that of the oil outlet hole 24, which is conducive to oil intake. The inner diameter of the oil inlet hole 14 is 1.80cm, and the inner diameter of the oil outlet hole 24 is 1.50cm.

[0030] like Figures 8-9 As shown, the external threads on connector 11 and connector 21 correspond to the internal threads of the oil pump 4 inlet and outlet ports, which are used to install connector 11 and connector 21 into the oil pump 4 inlet and outlet ports. The inlet nozzle 1 and outlet nozzle 2 are connected to the oil pump 4 by the threads at horizontal intervals.

[0031] like Figures 5-7As shown, a quick-installation tool for oil nozzles is used to install the aforementioned oil inlet nozzle 1 and oil outlet nozzle 2 to accelerate the installation efficiency. The tool includes an installation sleeve 3, which comprises a cylindrical body 31. One end of the cylindrical body 31 has an internal hexagonal groove 32. An oil nozzle cavity 33 extends from the internal hexagonal groove 32 to the other end of the cylindrical body 31. The size of the oil nozzle cavity 33 is smaller than the size of the internal hexagonal groove 32. The size of the oil nozzle cavity 33 matches the sizes of the first tapered tube 13 and the second tapered tube 23, facilitating the insertion of the oil nozzle into the oil nozzle cavity 33 during installation. The internal hexagonal groove 32 matches the sizes of the first hexagonal block 12 and the second hexagonal block 22, facilitating the locking of the cylindrical body 31 with the hexagonal blocks, causing the oil nozzle to rotate and be threaded onto the oil pump 4.

[0032] The distance between the outer wall of the cylinder 31 and the inner wall of the internal hexagonal slot 32 is less than the interval between hexagonal block 12 and hexagonal block 22 on the oil pump 4, thus enabling rapid installation in a confined space.

[0033] Working principle

[0034] like Figure 7 As shown, during use, the tapered tube 13 end of the inlet nozzle 1 or outlet nozzle 2 is inserted into the end of the cylinder 31 with the internal hexagonal slot 32. The tapered slot enters the nozzle cavity 33 through the internal hexagonal slot 32, and the hexagonal block is engaged in the internal hexagonal slot 32. The connector of the nozzle extending out of the cylinder 31 is aligned with the inlet and outlet ports of the oil pump 4. By rotating the cylinder 31, the internal hexagonal slot 32 is engaged and locked, causing the nozzle to rotate so that its threads are installed on the oil pump 4. The external thread of the connector is connected to the internal thread of the cylinder 31. After one nozzle is installed, the pre-installation distance between the two nozzles is greater than the distance between the outer wall of the cylinder 31 and the inner wall of the internal hexagonal slot 32, so that the outer wall of the cylinder 31 does not touch the installed nozzle, and the other nozzle can be installed quickly and continuously.

[0035] This utility model uses two oil inlet nozzles 1 and 2 with the same external shape, only the internal through holes are different. The oil inlet through hole 14 is larger than the oil outlet through hole 24, which is conducive to oil intake and facilitates cost control and reduces installation space. The bottom of the oil inlet nozzle 1 and the oil outlet nozzle 2 adopts a hexagonal block design, which is used in conjunction with the oil nozzle quick installation tool. The internal hexagonal slot 32 in the cylinder 31 is compatible with the hexagonal block. The oil nozzle enters the oil nozzle cavity 33 in the cylinder 31. Rotating the cylinder 31 can lock the oil nozzle in a narrow space by thread and install it quickly.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A miniature brushless oil pump nozzle, characterized in that: It includes an oil inlet and an oil outlet installed on the oil pump. The oil inlet is formed by a connector, a hexagonal block, and two tapered tubes arranged in sequence from bottom to top, which are coaxially fixedly connected. The oil inlet has a cylindrical oil inlet hole, which passes through the interior of the connector, the hexagonal block, and the two tapered tubes in sequence. The hexagonal block is hexagonal in shape, and the connector has an external thread on its outer periphery. The structure of the oil outlet nozzle is the same as that of the oil inlet nozzle. The oil outlet nozzle is coaxially and fixedly connected from bottom to top by a connector two, a hexagonal block two, and two tapered tubes two arranged in sequence. The oil inlet nozzle has a cylindrical oil outlet through hole. The oil outlet through hole passes through the interior of the connector two, the hexagonal block two, and the two tapered tubes two in sequence. The hexagonal block two is hexagonal in shape. The connector two has external threads on its outer periphery. The diameter of the oil inlet through hole is larger than the diameter of the oil outlet through hole.

2. The miniature brushless oil pump nozzle according to claim 1, characterized in that: The external threads on connector one and connector two correspond to the internal threads of the oil pump inlet and outlet. The oil inlet and outlet are horizontally connected to the oil pump via threads.

3. The miniature brushless oil pump nozzle according to claim 1, characterized in that: The inner diameter of the oil inlet hole is 1.80 cm, and the inner diameter of the oil outlet hole is 1.50 cm.

4. A quick-installation tool for grease fittings, characterized in that: An installation sleeve is used to install the oil inlet and outlet nozzles according to any one of claims 1-3 to accelerate the installation efficiency of the oil inlet and outlet nozzles. The installation sleeve includes a cylindrical body, one end of which has an internal hexagonal slot. An oil nozzle cavity extends from the internal hexagonal slot to the other end of the cylindrical body. The size of the oil nozzle cavity is smaller than the size of the internal hexagonal slot. The size of the oil nozzle cavity matches the size of the first tapered tube and the second tapered tube. The internal hexagonal slot matches the size of the first hexagonal block and the second hexagonal block.

5. The quick-installation tool for an oil nozzle according to claim 4, characterized in that: The distance between the outer wall of the cylinder and the inner wall of the hexagonal slot is less than the interval between hexagonal block one and hexagonal block two on the oil pump.