Single-side-supported horizontal fuel pump assembly

Abstract

The utility model discloses a unilateral support horizontal fuel pump assembly, which belongs to the technical field of horizontal fuel pump assemblies and is characterized in that one end of a fuel pump assembly body is provided with an oil suction end, the other end of the fuel pump assembly body is provided with an oil outlet end, the bottom of the fuel pump assembly body is detachably connected with a base, the surface of the base is fixedly provided with a clamping component, and the clamping component is fixedly connected with the fuel pump assembly body. According to the unilateral supporting horizontal fuel pump assembly, the arranged supporting rods, the flange connecting rods and the adjusting blocks have the rotating function, the position of the included angle between the supporting rods and the base can be adjusted, when the supporting rods are vertical, the supporting rods can downwards extrude the inner wall of a fuel tank, and therefore the supporting rods can be conveniently adjusted; the fuel pump assembly body and the base can be rapidly assembled and positioned through elastic force by arranging the clamping plate, the clamping ring, the elastic plate and the elastic legs, meanwhile, the buffering effect is achieved, and the influence of vibration on a fuel pump can be greatly weakened.

Description

Technical Field

[0001] This utility model relates to the technical field of horizontal fuel pump assembly, and more specifically, to a single-sided supported horizontal fuel pump assembly. Background Technology

[0002] The fuel pump is the core component of a car's fuel injection system. Located inside the vehicle's fuel tank, its function is to draw fuel from the tank, pressurize it, and deliver it to the fuel supply lines.

[0003] Currently, common single-sided supported horizontal fuel pump assemblies, after being installed in the fuel tank, lack sufficient support and are easily affected by fuel tank vibration. For example, a single-sided supported horizontal fuel pump assembly disclosed in CN222633336U includes: a pump body mounting base with a bottom shell fastened to its lower part; a fuel pump mounted on the pump body mounting base; a support frame movably connected to the side of the pump body mounting base; a flange located above the support frame and connected and fixed to the support frame via a support rod; the fuel pump is connected to a suction line and a discharge line, and the discharge line is connected to the flange.

[0004] As can be seen from the above-mentioned publicly available solutions, the assembly of the pump body mounting base and the fuel pump is cumbersome and complicated. Moreover, after positioning with the fuel tank, the fuel pump cannot be buffered and damped, which means that the vibration force will have a significant impact on the fuel pump and may shorten its service life. Furthermore, the support rod returns to a vertical state after the fuel pump is installed in the fuel tank, and the support rod is rotatably connected to the pump body mounting base, which cannot provide stable support and reduces its support stability. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a single-sided supported horizontal fuel pump assembly. This assembly features a support rod, flange connecting rod, and adjusting block with a rotatable function. This allows the support rod to be adjusted to the angle between itself and the base. Furthermore, when the support rod is vertical, it can press downwards against the inner wall of the fuel tank, greatly improving the support's stability. Additionally, the assembly includes a retaining plate, retaining ring, elastic plate, and elastic leg, which allow for quick assembly and positioning of the fuel pump assembly with the base using elastic force. This also provides a buffering effect, significantly reducing the impact of vibration on the fuel pump.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A single-sided supported horizontal fuel pump assembly includes a fuel pump assembly body. One end of the fuel pump assembly body is provided with a fuel suction end, and the other end is provided with a fuel outlet end. A base is detachably connected to the bottom of the fuel pump assembly body. A snap-fit ​​assembly is fixedly installed on the surface of the base. An adjustment assembly is fixedly connected to the side of the base. One end of the adjustment assembly is movably connected to a support assembly. One end of the support assembly is rotatably connected to a flange connecting rod. One end of the flange connecting rod has a rotating groove. This single-sided supported horizontal fuel pump assembly, through the rotation function between the support rod, the flange connecting rod, and the adjustment block, not only allows the angle between the support rod and the base to be adjusted, but also allows the support rod to press downward against the inner wall of the fuel tank when it is vertical, thereby greatly improving the support stability. Furthermore, through the provided snap-fit ​​plate, snap-fit ​​ring, elastic plate, and elastic leg, the fuel pump assembly body and the base can be quickly assembled and positioned by elastic force, while also having a buffering effect, which can greatly reduce the impact of vibration on the fuel pump.

[0008] Furthermore, the snap-fit ​​assembly includes a snap-fit ​​plate and a snap-fit ​​ring. An elastic plate is fixedly connected to the bottom of the snap-fit ​​plate, and an elastic leg is fixedly connected to the bottom of the snap-fit ​​ring. The bottoms of the elastic plate and the elastic leg are fixedly connected to the surface of the base. Both the snap-fit ​​plate and the snap-fit ​​ring are made of elastic oil-resistant material, which can clamp the fuel pump assembly through elastic force, thereby improving assembly efficiency.

[0009] Furthermore, the adjustment assembly includes an adjustment seat, an adjustment groove is provided in the middle of the adjustment seat, an adjustment block is rotatably connected to the inner wall of the adjustment groove, and a rotating shaft is fixedly connected to both sides of the adjustment block. The adjustment block can rotate in the adjustment groove, thereby allowing the support rod to adjust the angle between itself and the base, which facilitates the installation of the fuel pump assembly into the fuel tank.

[0010] Furthermore, the support assembly includes a support rod, one end of which is fixedly connected to a pressing block, and the other end of which is fixedly connected to an anti-detachment block. An anti-slip sleeve is fixedly fitted onto the surface of the support rod, and the surface of the anti-slip sleeve is provided with anti-slip texture to facilitate manual rotation of the support rod, thereby adjusting the lifting position of the pressing block.

[0011] Furthermore, the surface of the card plate has a first card groove, the surface of the retaining ring has a second card groove, and a through hole is opened in the middle of the first card groove. The first card groove and the second card groove contact and press with both ends of the fuel pump assembly, which has a limiting function.

[0012] Furthermore, the surface of the adjusting block has a threaded hole, the inner wall of which is threadedly connected to the surface of the support rod, and the surface of the support rod has an external thread, so the position of one end of the support rod can be adjusted by the thread.

[0013] Furthermore, the bottom of the adjusting groove has a bottom hole, the inner wall of which is movably connected to the surface of the extrusion block. The bottom hole has a clearance function, allowing one end of the extrusion block to contact and extrude against the inner wall of the oil tank.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution has a rotating function between the support rod, flange connecting rod, and adjusting block. This not only allows the support rod to adjust the angle between itself and the base, but also allows it to press downward against the inner wall of the oil tank when the support rod is vertical, thereby greatly improving the support stability.

[0016] (2) This solution uses a retaining plate, retaining ring, elastic plate and elastic leg to quickly assemble and position the fuel pump assembly with the base through elastic force, and at the same time has a buffering effect, which can greatly reduce the impact of vibration on the fuel pump. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustment component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the support component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the card plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the retaining ring structure of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Fuel pump assembly; 11. Suction end; 12. Discharge end; 2. Base; 21. Clamping plate; 22. First clamping groove; 23. Through hole; 24. Elastic plate; 25. Snap ring; 26. Second clamping groove; 27. Elastic leg; 3. Adjustment assembly; 31. Adjustment seat; 32. Adjustment groove; 33. Bottom hole; 34. Rotating shaft; 35. Adjustment block; 36. Threaded hole; 4. Support assembly; 41. Support rod; 42. Pressing block; 43. Anti-detachment block; 44. Anti-slip sleeve; 5. Flange connecting rod; 51. Rotary groove. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figure 1-5 A single-sided supported horizontal fuel pump assembly includes a fuel pump assembly body 1. The fuel pump assembly body 1 is further provided with components such as a fuel pump, a fuel pump connector, and a fuel level connector. Its composition and working principle are well known to those skilled in the art. One end of the fuel pump assembly body 1 is provided with a fuel suction end 11, and the other end of the fuel pump assembly body 1 is provided with a fuel outlet end 12. A base 2 is detachably connected to the bottom of the fuel pump assembly body 1. A snap-fit ​​assembly is fixedly installed on the surface of the base 2. The snap-fit ​​assembly includes a snap-fit ​​plate 2. 1. A retaining ring 25 and a retaining plate 21 are fixedly connected to the bottom of the retaining plate 21. An elastic plate 24 is fixedly connected to the bottom of the retaining ring 25. The bottoms of the elastic plate 24 and the elastic leg 27 are fixedly connected to the surface of the base 2. The elastic plate 24 and the elastic leg 27 are both inclined. Their material is the same as that of the retaining plate 21 and the retaining ring 25. The retaining plate 21 and the retaining ring 25 are both made of elastic oil-resistant material, which is spring steel, a prior art material. Furthermore, a polyurethane damping block is provided at the bottom of the fuel pump that contacts the base 2. To prevent it from shaking, the fuel pump assembly 1 can be clamped by elastic force, which improves assembly efficiency. The surface of the clamping plate 21 has a first groove 22, and the surface of the retaining ring 25 has a second groove 26. A through hole 23 is opened in the middle of the first groove 22. The first groove 22 and the second groove 26 contact and press with both ends of the fuel pump assembly 1, which has a limiting function. An adjustment component 3 is fixedly connected to the side of the base 2. One end of the adjustment component 3 is movably connected to a support component 4. One end of the support component 4 is rotatably connected to a flange connecting rod 5. One end of the flange connecting rod 5 has a rotating groove 51. The rotating groove 51 is a T-shaped groove. Its inner wall is rotatably connected to the surface of the anti-detachment block 43, which will not affect the rotation of the support rod 41. A flange is fixedly connected to the end face of the flange connecting rod 5. The flange is connected to the fuel tank opening. This is the prior art. When the bottom of the support rod 41 contacts and presses with the inner wall of the fuel tank, the flange just covers one end of the fuel tank opening, which will not affect the installation of the flange. The surface of the flange is connected to one end of the fuel pump connector and the fuel level connector.

[0026] The adjustment assembly 3 includes an adjustment seat 31, with an adjustment groove 32 in the middle. An adjustment block 35 is rotatably connected to the inner wall of the adjustment groove 32. Rotating shafts 34 are fixedly connected to both sides of the adjustment block 35. The adjustment block 35 can rotate within the adjustment groove 32, thereby allowing the angle between the support rod 41 and the base 2 to be adjusted, facilitating the installation of the fuel pump assembly into the fuel tank. The support assembly 4 includes a support rod 41, with a pressing block 42 fixedly connected to one end of the support rod 41 and an anti-detachment block 43 fixedly connected to the other end. An anti-slip sleeve 44 is fixedly fitted onto the surface of the support rod 41, and the surface of the anti-slip sleeve 44 is provided with anti-slip texture, facilitating manual rotation of the support rod 41 to adjust the lifting position of the pressing block 42.

[0027] The surface of the adjusting block 35 has a threaded hole 36. The inner wall of the threaded hole 36 is threadedly connected to the surface of the support rod 41. The surface of the support rod 41 has an external thread, which can be used to adjust the position of one end of the support rod 41. The bottom of the adjusting groove 32 has a bottom hole 33. The inner wall of the bottom hole 33 is movably connected to the surface of the extrusion block 42. The bottom hole 33 has a clearance function, which allows one end of the extrusion block 42 to contact and extrude against the inner wall of the oil tank.

[0028] When installing the single-sided horizontal fuel pump assembly, the suction end 11 of the fuel pump assembly 1 is first passed through the retaining ring 25, and then one end of it is pressed against the second retaining groove 26, causing the retaining ring 25 to tilt towards one end of the base 2 and generate elastic force. Next, the other end of the fuel pump assembly 1 is passed through the through hole 23, so that one end of the fuel pump assembly 1 is pressed against the first retaining groove 22, thereby causing the retaining plate 21 and the retaining ring 25 to generate elastic force to clamp it. Then, the support rod 41 is rotated to make it horizontal with the base 2, and then the fuel pump assembly is inserted into the fuel tank through the fuel tank opening. Then, the support rod 41 is rotated back to its original position. At this time, the support rod 41 and the base 2 are aligned. The included angle is 90 degrees. Then, rotate the support rod 41 clockwise so that one end of the pressing block 42 is inserted downward into the bottom hole 33. At this time, the included angle between the support rod 41 and the base 2 cannot be adjusted. At the same time, the number of rotations of the support rod 41 controls one end of the pressing block 42 to be on the same plane as the bottom of the base 2. Then, the flange is placed on the fuel tank opening. At this time, the bottom of the base 2 and the pressing block 42 are in contact with the inner wall of the fuel tank and pressed. After the flange is fixed, the fuel pump assembly will not move in the fuel tank. At the same time, when vibration occurs, the elastic plate 24, the clamping plate 21, the clamping ring 25 and the elastic leg 27 will buffer and dampen the fuel pump assembly body 1, which can greatly reduce the impact of vibration on the fuel pump.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A single-side supported horizontal fuel pump assembly, comprising a fuel pump assembly body (1), one end of the fuel pump assembly body (1) is provided with an oil suction end (11), the other end of the fuel pump assembly body (1) is provided with an oil outlet end (12), characterized in that: The bottom of the total cost of the fuel pump (1) is detachably connected with the base (2), the surface of the base (2) is fixedly installed with the clamping assembly, the side of the base (2) is fixedly connected with the adjusting assembly (3), one end of the adjusting assembly (3) is movably connected with the supporting assembly (4), one end of the supporting assembly (4) is rotatably connected with the flange connecting rod (5), and the flange connecting rod (5) is provided with a rotating groove (51) at one end.

2. A single-sided supported horizontal fuel pump assembly as claimed in claim 1, wherein: The clamping assembly comprises a clamping plate (21) and a clamping ring (25), the bottom of the clamping plate (21) is fixedly connected with an elastic plate (24), the bottom of the clamping ring (25) is fixedly connected with an elastic leg (27), and the bottom of the elastic plate (24) and the elastic leg (27) is fixedly connected with the surface of the base (2).

3. A single-sided supported horizontal fuel pump assembly as defined in claim 1, wherein: The adjusting assembly (3) comprises an adjusting seat (31), the middle position of the adjusting seat (31) is provided with an adjusting groove (32), the inner wall of the adjusting groove (32) is rotatably connected with an adjusting block (35), and the both sides of the adjusting block (35) are fixedly connected with a rotating shaft (34).

4. A single-sided supported horizontal fuel pump assembly as defined in claim 1, wherein: The supporting assembly (4) comprises a supporting rod (41), one end of the supporting rod (41) is fixedly connected with a pressing block (42), the other end of the supporting rod (41) is fixedly connected with an anti-dropping block (43), and the surface of the supporting rod (41) is fixedly sleeved with an anti-skid sleeve (44).

5. A single-sided supported horizontal fuel pump assembly as defined in claim 2, wherein: The surface of the clamping plate (21) is provided with a first clamping groove (22), the surface of the clamping ring (25) is provided with a second clamping groove (26), and the middle position of the first clamping groove (22) is provided with a through hole (23).

6. A single-sided supported horizontal fuel pump assembly as defined in claim 3, wherein: The surface of the adjusting block (35) is provided with a threaded hole (36), and the inner wall of the threaded hole (36) is threadedly connected with the surface of the supporting rod (41).

7. A single-sided supported horizontal fuel pump assembly as defined in claim 3, wherein: The bottom of the adjusting groove (32) is provided with a bottom hole (33), and the inner wall of the bottom hole (33) is movably connected with the surface of the pressing block (42).

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