Balanced impeller structure of fuel pump

Abstract

The utility model discloses a fuel pump balance impeller structure, and relates to the technical field of fuel pumps. The impeller comprises an impeller body, a transmission shaft is arranged in the middle of the impeller body, a first shaft groove used in cooperation with the transmission shaft is formed in the middle of the impeller body in a penetrating mode, a positioning disc is fixedly installed at the bottom end of the transmission shaft, and a positioning groove used in cooperation with the positioning disc is formed in the bottom end of the impeller body. Four positioning rods which are annularly and uniformly distributed are fixedly mounted at the top end of the positioning disc, and first rod grooves matched with the positioning rods for use are formed in the middle of the impeller body in a penetrating manner; a pressing disc is arranged at the top end of the impeller body, and a second rod groove used in cooperation with the positioning rod is formed in the upper surface of the pressing disc in a penetrating mode. According to the utility model, when the transmission shaft and the impeller body are preliminarily mounted, the transmission shaft and the impeller body can be preliminarily mounted without matching of screws and other tools, so that the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pumps, in particular to a fuel pump balancing impeller structure. Background Art

[0002] Publication number "CN218479869U" discloses a new type of fuel pump impeller, including an impeller body, a plurality of blades are provided at the edge of the surface of the impeller body, a fixing mechanism is provided at the center position of the surface of the impeller body, a connecting mechanism is clamped inside the fixing mechanism to drive the impeller body to rotate, and a locking mechanism is fixedly installed on the surface of the impeller body and at one end of the corresponding connecting mechanism to fix the end of the connecting mechanism. The utility model can be fixedly installed with the fixing mechanism in all directions by providing a connecting mechanism that is interconnected with the external transmission shaft, and the multiple groups of different clamping methods can ensure that the impeller body will not shake when the transmission shaft drives the entire impeller body to rotate, and the provided locking mechanism can contact with the plane position of one side of the connecting mechanism, thereby preventing the connecting mechanism from damaging the fixing mechanism provided at the center position of the impeller body when the rotating shaft is instantly started;

[0003] Although the above technology solves the problem that the impeller is easily shaken during the high-speed rotation of the transmission rod, thereby reducing the fuel pump's oil delivery efficiency, during installation, after the transmission shaft is installed in the positioning hole, it is necessary to first use screws and matching tools to preliminarily install the transmission shaft and the impeller body, then flip the impeller body to make the support plate and the second locking plate work, and then use screws and matching tools to fix the support plate and the impeller body for a second time, which greatly reduces the installation efficiency. Utility Model Content

[0004] In order to solve the problem that when installing the drive shaft and the impeller body, they need to be initially fixed with screws, then flipped over, and then the support plate and the impeller body need to be fixed again with screws, which reduces the installation efficiency; the purpose of the utility model is to provide a fuel pump balanced impeller structure.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a fuel pump balanced impeller structure, comprising an impeller body, a transmission shaft is provided in the middle of the impeller body, a first shaft groove for use with the transmission shaft is provided through the middle of the impeller body, a positioning plate is fixedly installed at the bottom end of the transmission shaft, a positioning groove for use with the positioning plate is provided at the bottom end of the impeller body, four positioning rods evenly distributed in an annular shape are fixedly installed at the top of the positioning plate, a first rod groove for use with the positioning rod is provided through the middle of the impeller body; the top of the impeller body is provided with a The cam is provided with a second groove for cooperating with the positioning rod on the upper surface of the cam, and a second groove for cooperating with the transmission shaft is provided on the middle part of the cam. Two symmetrically distributed positioning plates are fixedly installed on the top of the cam, and two symmetrically distributed T-shaped grooves are provided on the top of the positioning plates. The internal sliding card of the T-shaped groove is provided with a T-shaped block, and a movable plate is fixedly installed on the top of the T-shaped block. Moving rods are fixedly installed on the relative outer sides of the two movable plates, and the tops of the two symmetrical positioning rods are provided with fixed grooves for cooperating with the moving rods.

[0006] Preferably, a first slot is opened through the top of the two symmetrical positioning rods, and a second slot corresponding to the first slot is opened through the top of the transmission shaft. Insert rods are provided inside the first slot and the second slot, and the insert rods are fixed to the positioning rods by screws.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] 1. This application realizes that when performing the preliminary installation between the drive shaft and the impeller body, the drive shaft and the impeller body can be preliminarily installed without the need for screws and other tools, thereby improving the installation efficiency;

[0009] 2. The present application realizes the fixation between the positioning rod and the transmission shaft, thereby making the transmission shaft and the impeller body more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic diagram of the structure of the utility model.

[0012] Figure 2This is a schematic diagram of the connection structure between the impeller body and the positioning groove in the utility model.

[0013] Figure 3 This is a schematic diagram of the connection structure between the positioning rod and the clamping plate in the utility model.

[0014] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0015] Figure 5 This is a schematic diagram of the connection structure between the compression disc and the positioning plate in the utility model.

[0016] Figure 6 This is a schematic diagram of the connection structure between the mounting plate and the plug-in block in the present utility model.

[0017] In the figure: 1. Impeller body; 11. Drive shaft; 12. First shaft groove; 2. Positioning plate; 20. Positioning groove; 21. Positioning rod; 22. First rod groove; 23. Pressure plate; 24. Second rod groove; 25. Second shaft groove; 26. Positioning plate; 27. T-slot; 28. T-block; 29. ​​Moving plate; 3. Moving rod; 31. Fixed groove; 4. First slot; 41. Second slot; 42. Insert rod; 43. Disc; 5. Clamping plate; 51. Clamping groove; 6. Stabilizing plate; 61. Stabilizing groove; 7. Fixed plate; 8. Vertical plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example: Figure 1-6 As shown, the utility model provides a balanced impeller structure for a fuel pump, comprising an impeller body 1, a transmission shaft 11 being provided in the middle of the impeller body 1, a first shaft groove 12 being provided through the middle of the impeller body 1 for use with the transmission shaft 11, a positioning plate 2 being fixedly mounted on the bottom end of the transmission shaft 11, a positioning groove 20 being provided at the bottom end of the impeller body 1 for use with the positioning plate 2, four positioning rods 21 being fixedly mounted in an evenly distributed annular pattern on the top end of the positioning plate 2, and a first rod groove 22 being provided through the middle of the impeller body 1 for use with the positioning rods 21;

[0020] A pressure plate 23 is provided at the top of the impeller body 1, and a second rod groove 24 for cooperating with the positioning rod 21 is penetrated through the upper surface of the pressure plate 23, and a second shaft groove 25 for cooperating with the transmission shaft 11 is penetrated through the middle of the pressure plate 23, and two symmetrically distributed positioning plates 26 are fixedly installed on the top of the pressure plate 23, and two symmetrically distributed T-shaped slots 27 are opened on the top of the positioning plate 26. The internal sliding card of the T-shaped slot 27 is provided with a T-shaped block 28, and the top of the T-shaped block 28 is fixedly installed with a moving plate 29, and the relative outer sides of the two moving plates 29 are fixedly installed with moving rods 3, wherein the tops of the two symmetrical positioning rods 21 are penetrated with a fixing groove 31 for cooperating with the moving rod 3.

[0021] In addition, a first slot 4 is opened through the top of the two symmetrical positioning rods 21, and a second slot 41 corresponding to the first slot 4 is opened through the top of the transmission shaft 11. An insertion rod 42 is provided inside the first slot 4 and the second slot 41, and the insertion rod 42 is fixed to the positioning rod 21 by screws.

[0022] A disc 43 is fixedly mounted at one end of the insertion rod 42, and the diameter of the disc 43 is larger than the diameter of the insertion rod 42. By setting the disc 43, when the insertion rod 42 is inserted into the first slot 4 and the second slot 41, the disc 43 fits with the positioning rod 21, indicating that the screw hole on the insertion rod 42 corresponds to the screw hole on the positioning rod 21. At the same time, the disc 43 prevents the insertion rod 42 from being inserted through the first slot 4 due to excessive force when inserting the insertion rod 42 into the first slot 4 and the second slot 41, thereby affecting the fixation between the transmission shaft 11 and the positioning rod 21.

[0023] A clamping plate 5 is fixedly installed on both sides of each positioning rod 21. A clamping slot 51 for use with the clamping plate 5 is penetrated through the upper surface of the impeller body 1 at the position of the first rod groove 22. By setting the clamping plate 5 and the clamping slot 51, the positioning rod 21 clamped in the first rod groove 22 is clamped tighter, thereby increasing stability.

[0024] Stabilizing plates 6 are fixedly installed on both sides of the two moving rods 3, and the tops of the two symmetrical positioning rods 21 are located at the position of the fixing groove 31 and are penetrated by a stabilizing groove 61 used in conjunction with the stabilizing plate 6. By setting the stabilizing plate 6 and the stabilizing groove 61, the moving rod 3 stuck in the fixing groove 31 is clamped tighter, thereby increasing stability.

[0025] A fixing plate 7 is fixedly installed on one side of each movable plate 29 away from the movable rod 3. The fixing plate 7 is located at the bottom edge of the movable plate 29. The fixing plate 7 is fixed to the positioning plate 26 by screws. By setting the fixing plate 7, when the movable rod 3 is inserted into the corresponding fixing groove 31, the fixing plate 7 is connected to the positioning plate 26 by screws, which increases stability and prevents the movable plate 29 and the T-shaped block 28 from moving in the T-shaped groove 27 during use, thereby reducing the stability between the impeller body 1 and the transmission shaft 11.

[0026] A vertical plate 8 is fixedly installed at the top edge of each positioning plate 26, and the vertical plate 8 is fixed to the positioning plate 26 by screws. By setting the vertical plate 8, when the T-shaped block 28 is installed in the T-shaped slot 27, the vertical plate 8 is connected to the positioning plate 26 by screws, thereby preventing the T-shaped block 28 from moving out of the T-shaped slot 27 during work, affecting the use of the moving rod 3 and the moving plate 29.

[0027] Working principle: In actual use, when the transmission shaft 11 needs to be installed on the impeller body 1, first, the transmission shaft 11 is aligned with the first shaft groove 12, and the positioning rod 21 is aligned with the first rod groove 22, then the transmission shaft 11 is inserted into the first shaft groove 12, the positioning rod 21 is inserted into the first rod groove 22, so that the positioning plate 2 fits the positioning groove 20, and then the second shaft groove 25 on the compression plate 23 is aligned with the transmission shaft 11, the positioning rod 21 is aligned with the second rod groove 24, then the transmission shaft 11 is passed through the second shaft groove 25, the positioning rod 21 is passed through the second rod groove 24, so that the bottom of the compression plate 23 is aligned with the first shaft groove 12, and the positioning rod 21 is passed through the second rod groove 24, so that the bottom of the compression plate 23 is aligned with the first shaft groove 12, and the positioning rod 21 is inserted into the first rod groove 22, so that the positioning plate 2 fits the positioning groove 20, and then the second shaft groove 25 on the compression plate 23 is aligned with the transmission shaft 1 ... positioning rod 21 is inserted into the first rod groove 22, so that the positioning The surface fits with the top surface of the impeller body 1. After fitting, manually move the movable plate 29 in the direction of the positioning rod 21. When the movable plate 29 moves, it drives the T-shaped block 28 to move in the T-shaped slot 27, drives the movable rod 3 to move, and makes the movable rod 3 fit into the corresponding fixed slot 31, thereby performing a preliminary installation of the drive shaft 11 and the impeller body 1, and then insert the insertion rod 42 into the first slot 4 on the positioning rod 21 and the second slot 41 on the drive shaft 11, and then fix the positioning rod 21 and the insertion rod 42 by screws, so that the drive shaft 11 is installed on the impeller body 1.

[0028] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A fuel pump balanced impeller structure, comprising an impeller body (1), characterized in that: A transmission shaft (11) is provided in the middle of the impeller body (1), a first shaft groove (12) for use with the transmission shaft (11) is provided through the middle of the impeller body (1), a positioning plate (2) is fixedly installed at the bottom end of the transmission shaft (11), a positioning groove (20) for use with the positioning plate (2) is provided at the bottom end of the impeller body (1), four positioning rods (21) evenly distributed in an annular shape are fixedly installed at the top end of the positioning plate (2), and a first rod groove (22) for use with the positioning rod (21) is provided through the middle of the impeller body (1); The top of the impeller body (1) is provided with a clamping plate (23), the upper surface of the clamping plate (23) is penetrated by a second rod groove (24) for use with the positioning rod (21), the middle part of the clamping plate (23) is penetrated by a second shaft groove (25) for use with the transmission shaft (11), the top of the clamping plate (23) is fixedly installed with two symmetrically distributed positioning plates (26), the top of the positioning plates (26) is provided with two symmetrically distributed T-shaped grooves (27), the internal sliding card of the T-shaped groove (27) is provided with a T-shaped block (28), the top of the T-shaped block (28) is fixedly installed with a moving plate (29), and the relative outer sides of the two moving plates (29) are fixedly installed with a moving rod (3), wherein the tops of the two symmetrical positioning rods (21) are penetrated by a fixing groove (31) for use with the moving rod (3).

2. A fuel pump balanced impeller structure according to claim 1, characterized in that: In addition, a first slot (4) is provided through the top of the two symmetrical positioning rods (21), and a second slot (41) corresponding to the first slot (4) is provided through the top of the transmission shaft (11). Insertion rods (42) are provided inside the first slot (4) and the second slot (41), and the insertion rods (42) are fixed to the positioning rods (21) by screws.

3. A fuel pump balanced impeller structure as claimed in claim 2, characterized in that: A disc (43) is fixedly mounted on one end of the insertion rod (42), and the diameter of the disc (43) is larger than the diameter of the insertion rod (42).

4. A fuel pump balanced impeller structure according to claim 1, characterized in that: A clamping plate (5) is fixedly mounted on both sides of each positioning rod (21), and a clamping groove (51) for use with the clamping plate (5) is provided through the upper surface of the impeller body (1) at the position of the first rod groove (22).

5. A fuel pump balanced impeller structure according to claim 1, characterized in that: Stabilizing plates (6) are fixedly mounted on both sides of the two moving rods (3), wherein the tops of the two symmetrical positioning rods (21) are located at the positions of the fixing grooves (31) and are penetrated by stabilizing grooves (61) used in conjunction with the stabilizing plates (6).

6. A fuel pump balanced impeller structure according to claim 1, characterized in that: A fixing plate (7) is fixedly mounted on one side of each movable plate (29) away from the movable rod (3). The fixing plate (7) is located at the bottom edge of the movable plate (29). The fixing plate (7) is fixed to the positioning plate (26) by screws.

7. A fuel pump balanced impeller structure according to claim 1, characterized in that: A vertical plate (8) is fixedly mounted on the top edge of each positioning plate (26), and the vertical plate (8) and the positioning plate (26) are fixed by screws.

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