Top bead type pump body copper alloy bush mounting handle

Abstract

The utility model provides a top bead type pump body copper alloy bush installation handle, which belongs to the technical field of fuel pump assembly tools and comprises a handle main body, an auxiliary supporting piece and a limiting supporting piece, the handle main body comprises a holding part and a supporting piece mounting part; the supporting piece mounting part is of a cylindrical structure, and a plurality of threaded holes I and a threaded hole II are formed in the side wall of the supporting piece mounting part; the auxiliary supporting pieces are in one-to-one correspondence with the threaded holes I, and each auxiliary supporting piece comprises a threaded rod I, an elastic element I and a top ball I; the limiting supporting piece comprises a threaded rod II, an elastic element II and a top ball II. According to the top bead type pump body copper alloy bush installation handle, safe, rapid and accurate installation of a pump body inner cavity copper alloy bush can be achieved, time and labor are saved, and the problem that the copper alloy bush is scrapped due to deformation caused by hammering is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel pump assembly tools and specifically discloses a ball-top type pump body copper alloy bushing installation handle. Background Art

[0002] Fuel systems in modern internal combustion engines fueled by gasoline, particularly for the automotive market, employ gasoline direct injection (GDi). In a GDi system, fuel from a fuel tank is supplied by a low-pressure fuel pump to a high-pressure fuel pump, which typically includes a fuel pump housing and a pumping plunger that is reciprocated within the fuel pump housing by the camshaft of the internal combustion engine. The reciprocating motion of the pumping plunger also pressurizes the fuel so that it is supplied to a fuel injector, which injects the fuel directly into the combustion chamber of the internal combustion engine.

[0003] The Chinese patent with publication number CN118224021A discloses a high-pressure pump for a methanol-diesel dual-fuel engine, wherein the cam mechanism includes a camshaft passing through a pump body and an alcohol delivery pump component. A copper alloy bushing is required between the pump body and the camshaft for lubrication and sealing. The copper alloy bushing is made of copper alloy, and a positioning hole is provided on the side wall. When the surface finish reaches a certain value, an oil film can be attached to achieve lubrication, and the designer can design a seal on the surface of the copper alloy bushing according to the needs.

[0004] At present, copper alloy bushings are mostly installed into pump bodies by manual hammering, which is time-consuming and labor-intensive, and can easily cause the copper alloy bushings to deform and become scrapped. Utility Model Content

[0005] The utility model provides a ball-top type pump body copper alloy bushing installation handle, which improves the technical problems that manual hammering installation of the copper alloy bushing is time-consuming and laborious, and easily causes the copper alloy bushing to deform and become scrapped.

[0006] The above-mentioned top ball type pump body copper alloy bushing installation handle includes a handle body, an auxiliary support member and a limit support member; the handle body includes a gripping portion and a support member installation portion; the support member installation portion is a circular cylindrical structure, and a plurality of threaded holes Ⅰ and a threaded hole Ⅱ are arranged on the side wall; the auxiliary support member corresponds to the threaded hole Ⅰ one by one, including a threaded rod Ⅰ, an elastic element Ⅰ and a top ball Ⅰ; the first end of the threaded rod Ⅰ is provided with a mounting hole Ⅰ; the top ball Ⅰ is rotatably connected to the mounting hole Ⅰ; the elastic element Ⅰ is located in the mounting hole Ⅰ, and the two ends are respectively connected to the threaded rod Ⅰ and the top ball Ⅰ; the threaded rod Ⅰ passes through the threaded hole Ⅰ, and the top ball Ⅰ is located outside the support member installation portion; the limit support member includes a threaded rod Ⅱ, an elastic element Ⅱ and a top ball Ⅱ; the first end of the threaded rod Ⅱ is provided with a mounting hole Ⅱ; the top ball Ⅱ is rotatably connected to the mounting hole Ⅱ; the elastic element Ⅱ is located in the mounting hole Ⅱ, and the two ends are respectively connected to the threaded rod Ⅱ and the top ball Ⅱ; the threaded rod Ⅱ passes through the threaded hole Ⅱ, and the top ball Ⅱ is located outside the support member installation portion.

[0007] In the above-mentioned top bead type pump body copper alloy bushing installation handle, multiple threaded holes Ⅰ are axially divided into two groups along the support member installation part, and each group of threaded holes Ⅰ is evenly arranged circumferentially along the support member installation part.

[0008] In the above-mentioned top bead type pump body copper alloy bushing installation handle, the number of each group of threaded holes Ⅰ is three, and they are evenly arranged at an angle of 120°.

[0009] In the above-mentioned top bead type pump body copper alloy bushing installation handle, the threaded hole Ⅱ is located between the two groups of threaded holes Ⅰ.

[0010] In the above-mentioned top bead type pump body copper alloy bushing installation handle, both the auxiliary support member and the limit support member are ball detent screws.

[0011] In the above-mentioned top bead type pump body copper alloy bushing installation handle, the holding part is provided with anti-slip textures or a rubber anti-slip sleeve.

[0012] Compared with the prior art, the present utility model has the following beneficial effects.

[0013] The above-mentioned top bead type pump body copper alloy bushing installation handle is designed based on the physical properties of copper and the interaction of pressure and friction. First, align the top bead Ⅱ of the handle with the positioning hole on the side wall of the copper alloy bushing, and push it forcefully to make the two fit completely. The top bead Ⅰ applies uniform pressure to the copper alloy bushing. Utilize the ductility and resilience of copper to make the copper alloy bushing undergo plastic deformation at the installation point, and the top bead Ⅰ generates a mechanical locking effect on the copper alloy bushing. Then, firmly hold the holding part and vertically insert the copper alloy bushing into the inner cavity of the pump. Rotate the handle to separate the top bead Ⅱ from the positioning hole on the side wall of the copper alloy bushing, and then pull out the handle to complete the installation. When designing, it is necessary to ensure that the friction between the copper alloy bushing and the inner cavity of the pump is less than the supporting force between the copper ring and the top bead Ⅰ, so that the handle can push the copper alloy bushing into the inner cavity of the pump. The above-mentioned top bead type pump body copper alloy bushing installation handle can achieve safe, fast and precise installation of the copper alloy bushing in the inner cavity of the pump, saving time and effort, and improving the problem that the copper alloy bushing is scrapped due to deformation caused by hammering. Description of the Drawings

[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a cross-sectional view of the pump body;

[0016] Figure 2Assembly diagram for installing handles on copper alloy bushings for ball-top pump bodies;

[0017] Figure 3 Exploded view of the handle for installing the copper alloy bushing of the ball-type pump body;

[0018] Figure 4 Plan view of the handle for the copper alloy bushing of the ball-type pump body;

[0019] Figure 5 for Figure 4 Sectional view in the AA direction;

[0020] Figure 6 It is a schematic diagram of the structure of the auxiliary support.

[0021] In the figure: 1- auxiliary support member; 1.1- threaded rod Ⅰ; 1.2- elastic element Ⅰ; 1.3- top ball Ⅰ; 2- limit support member; 3.1- gripping part; 3.2- support member mounting part;

[0022] 100- pump body; 101- copper alloy bushing installation position. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The present embodiment provides a ball-type pump body copper alloy bushing mounting handle, including a handle body, an auxiliary support member 1 and a limit support member 2; the handle body includes a gripping portion 3.1 and a support member mounting portion 3.2; the support member mounting portion 3.2 is a circular cylindrical structure, and a plurality of threaded holes Ⅰ and a threaded hole Ⅱ are arranged on the side wall; the auxiliary support member 1 corresponds to the threaded hole Ⅰ one by one, including a threaded rod Ⅰ1.1, an elastic element Ⅰ1.2 and a ball Ⅰ1.3; the first end of the threaded rod Ⅰ1.1 is provided with a mounting hole Ⅰ; the ball Ⅰ1.3 is rotatably connected to the mounting hole Ⅰ ; The elastic element Ⅰ1.2 is located in the mounting hole Ⅰ, and its two ends are respectively connected to the threaded rod Ⅰ1.1 and the top ball Ⅰ1.3; the threaded rod Ⅰ1.1 passes through the threaded hole Ⅰ, and the top ball Ⅰ1.3 is located outside the support member mounting part 3.2; the limiting support member 2 includes a threaded rod Ⅱ, an elastic element Ⅱ and a top ball Ⅱ; the first end of the threaded rod Ⅱ is provided with a mounting hole Ⅱ; the top ball Ⅱ is rotatably connected to the mounting hole Ⅱ; the elastic element Ⅱ is located in the mounting hole Ⅱ, and its two ends are respectively connected to the threaded rod Ⅱ and the top ball Ⅱ; the threaded rod Ⅱ passes through the threaded hole Ⅱ, and the top ball Ⅱ is located outside the support member mounting part 3.2.

[0025] Adjust the extension amount of the threaded rod in the pump body cavity with different inner diameters to achieve fine-tuning of the supporting force of the top bead and prevent deformation caused by material problems. When in use, first, align the top bead II of the handle with the positioning hole on the side wall of the copper alloy bushing and push it forcefully to make the two fit completely. The top bead I 1.3 exerts uniform pressure on the copper alloy bushing. Utilize the ductility and resilience of copper to cause plastic deformation of the copper alloy bushing at the installation point. The top bead I 1.3 produces a mechanical locking effect on the copper alloy bushing. Then, firmly hold the holding part and vertically insert the copper alloy bushing into the pump body cavity. Rotate the handle to separate the top bead II from the positioning hole on the side wall of the copper alloy bushing, and then pull out the handle to complete the installation.

[0026] In the above-mentioned installation handle of the copper alloy bushing for the top bead type pump body, multiple threaded holes I are divided into two groups along the axial direction of the support part installation part 3.2, and each group of threaded holes I is evenly arranged along the circumferential direction of the support part installation part 3.2 to ensure that the copper alloy bushing is uniformly stressed and does not deform.

[0027] In the above-mentioned installation handle of the copper alloy bushing for the top bead type pump body, the number of each group of threaded holes I is three, and they are evenly arranged at an angle of 120°.

[0028] In the above-mentioned installation handle of the copper alloy bushing for the top bead type pump body, the threaded hole II is located between the two groups of threaded holes I.

[0029] In the above-mentioned installation handle of the copper alloy bushing for the top bead type pump body, both the auxiliary support part 1 and the limit support part 2 are ball plunger screws. The elastic element adopts a spring.

[0030] In the above-mentioned installation handle of the copper alloy bushing for the top bead type pump body, anti-slip textures or rubber anti-slip sleeves are provided on the holding part 3.1. Considering the comfort and efficiency of the staff during long-term operations, the shape, size, and surface treatment of the handle body are optimized to provide a better grip and operability. The addition of anti-slip textures or rubber anti-slip sleeves further improves the stability and safety of the tool during use.

[0031] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ball-type pump body copper alloy bushing installation handle, characterized in that: It includes a handle body, an auxiliary support member and a position-limiting support member; The handle body comprises a gripping portion and a support member mounting portion; The support member mounting portion is a circular cylindrical structure, and a plurality of threaded holes I and a threaded hole II are arranged on the side wall; the auxiliary support member corresponds to the threaded holes I one by one, and includes a threaded rod I, an elastic element I and a top ball I; The first end of the threaded rod I is provided with a mounting hole I; The top bead I is rotatably connected to the mounting hole I; The elastic element I is located in the mounting hole I, and its two ends are connected to the threaded rod I and the top ball I respectively; The threaded rod I passes through the threaded hole I, and the top ball I is located outside the support member mounting portion; The position-limiting support member comprises a threaded rod II, an elastic element II and a top ball II; The first end of the threaded rod II is provided with a mounting hole II; The top ball II is rotatably connected to the mounting hole II; The elastic element II is located in the mounting hole II, and its two ends are respectively connected to the threaded rod II and the top ball II; The threaded rod II passes through the threaded hole II, and the top bead II is located outside the support member mounting portion.

2. The ball-type pump body copper alloy bushing installation handle according to claim 1, characterized in that: The plurality of threaded holes I are divided into two groups along the axial direction of the support member mounting portion, and the threaded holes I in each group are evenly arranged along the circumferential direction of the support member mounting portion.

3. The ball-type pump body copper alloy bushing installation handle according to claim 2, characterized in that: The number of threaded holes in each group I is three, and they are evenly arranged at an angle of 120°.

4. The ball-type pump body copper alloy bushing installation handle according to claim 2 or 3, characterized in that: The threaded hole II is located between the two groups of threaded holes I.

5. The ball-type pump body copper alloy bushing installation handle according to claim 1, characterized in that: The auxiliary support parts and the limit support parts are both ball screws.

6. The ball-type pump body copper alloy bushing installation handle according to claim 1, characterized in that: The grip portion is provided with an anti-skid texture or a rubber anti-skid cover.

Images