Protective sleeve for convex shaft of rocker arm of rear axle of electric vehicle

Abstract

The utility model relates to the technical field of electric vehicle rear axle rocker arm protection, and discloses an electric vehicle rear axle rocker arm convex shaft protection sleeve which comprises a rocker arm body, a lantern ring is sleeved with the top of the rocker arm body, a protection mechanism is arranged on the outer side of the rocker arm body, fixing mechanisms are arranged on the left side and the right side of the protection mechanism, and the protection mechanism comprises a protection assembly and a positioning assembly. According to the protective sleeve for the convex shaft of the rear axle rocker arm of the electric vehicle, through the arranged protective mechanism, the rear protective cover and the front protective cover on the front side and the rear side are spliced and then are connected to the outer side of the top of the rocker arm body in a sleeving mode to complete protection on the rocker arm body and the lantern ring, and the spliced rear protective cover and the front protective cover can be disassembled and assembled; compared with an integrally-formed protective sleeve, a gap does not need to be reserved for the rocker arm body and disassembly and assembly, dust in external air cannot enter the rear protective cover and the front protective cover to be attached to the rocker arm body, and the protective effect on the rocker arm body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rear axle rocker arm protection for electric vehicles, in particular to a cam shaft protection sleeve for a rear axle rocker arm of an electric vehicle. Background Art

[0002] The electric vehicle rocker arm is the main component to connect the brake line to the rear axle of the electric vehicle. One end of the brake line is connected to the brake pin at one end of the rocker arm, and the other end of the rocker arm is connected to the cam of the rear axle. Currently, the cam rocker arms of electric vehicles' rear axles are directly exposed to the outside. Muddy roads are inevitable when riding electric vehicles. Over time, mud and debris will penetrate into the cam of the rear axle rocker arm, hindering the smooth rotation of the cam, which in turn causes heavy brakes. In severe cases, the brakes are ineffective, which is directly related to vehicle and personal safety.

[0003] According to the "Electric Vehicle Rear Axle Rocker Arm Cam Shaft Protective Cover (Publication Number: CN 213323530U; Application Number: 202022405951.0)" published on the patent website, the above application optimizes the problem that "mud and debris are prone to corrosion, affecting the overall service life; furthermore, when it is stuck or not flexible to rotate, it is difficult to disassemble during maintenance, and it is easy to damage the object when strong force is applied, which is not convenient for later maintenance and repair." The rocker arm is protected by an integrally formed 'protective cover body 1', but since the above-mentioned 'protective cover body 1' is integrally formed, in order to facilitate disassembly and assembly, there is a large gap between the inner side of the 'protective cover body 1' and the rocker arm, and it cannot fit tightly with the outer side of the rocker arm, and the protective effect is limited. Utility Model Content

[0004] The utility model aims to provide a protective sleeve for a rocker arm cam shaft of an electric vehicle rear axle, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective sleeve for a cam shaft of a rocker arm of a rear axle of an electric vehicle, comprising a rocker arm body, a sleeve ring is sleeved on the top of the rocker arm body, a protective mechanism is arranged on the outside of the rocker arm body, and fixing mechanisms are arranged on the left and right sides of the protective mechanism.

[0006] The protection mechanism comprises a protection component and a positioning component. The protection component is sleeved on the top of the rocker arm body, and the positioning component is arranged on the left and right sides of the protection component.

[0007] The fixing mechanism comprises a locking component and a fixing component. The locking component is arranged outside the protection component, and the fixing component is arranged inside the outside of the locking component.

[0008] Preferably, the protective assembly includes a rear protective cover, which is sleeved on the rear side of the top of the rocker arm body. A front protective cover is provided on the front side of the rear protective cover, and the front protective cover is sleeved on the front side of the top of the rocker arm body.

[0009] Preferably, a clamping strip is fixedly connected to the rear side of the front protective cover, and the clamping strip is clamped in the front side of the rear protective cover, so that the rear side of the front protective cover fits tightly with the front side of the rear protective cover.

[0010] Preferably, the positioning assembly comprises an inlay plate, which is clamped in the left and right sides of the rear protective cover and the front protective cover, and a clamping rod is fixedly connected to the inner side of the inlay plate, and the clamping rod is clamped in the rear protective cover and the clamping strip.

[0011] Preferably, the positioning assembly includes a limit plate, which is arranged on the outside of the panel, and the inner side of the limit plate fits with the left and right sides of the rear protective cover and the front protective cover. The outer side of the limit plate is sleeved with a sleeve frame, and the sleeve frame is fixedly connected to the outer side of the panel.

[0012] Preferably, a positioning frame is sleeved on the rear side of the limiting plate, and the positioning frame is fixedly connected to the left and right sides of the rear protective cover.

[0013] Preferably, the fixing assembly includes a flange, the flange is fixedly connected to the outer side of the limiting plate, bolts are arranged inside the flange, and the bolts pass through the limiting plate and are threadedly connected to the left and right sides of the front protective cover.

[0014] Compared with the prior art, the utility model provides a protective sleeve for the cam shaft of the rear axle rocker arm of an electric vehicle, which has the following beneficial effects:

[0015] 1. The protective cover of the cam shaft of the rear axle rocker arm of the electric vehicle has a protective mechanism set up, and the rear protective cover and the front protective cover on the front and rear sides are spliced ​​and sleeved on the outer side of the top of the rocker arm body to complete the protection of the rocker arm body and the collar. The spliced ​​rear protective cover and the front protective cover can be disassembled and assembled, so that the inner sides of the rear protective cover and the front protective cover can be closely fitted with the outer side of the rocker arm body. Compared with the one-piece protective cover, there is no need to reserve a gap for the rocker arm body and disassembly and assembly, so that dust in the external air cannot enter the rear protective cover and the front protective cover to adhere to the rocker arm body, thereby improving the protection effect of the rocker arm body.

[0016] 2. The rear axle rocker arm cam shaft protective sleeve of the electric vehicle has a fixing mechanism, and the staff only needs to insert the limit plate into the sleeve frame and then rotate the bolt to complete the fixing of the panel, so that the panel can be fixed on the left and right sides of the rear protective cover and the front protective cover to complete the fixing of the rear protective cover and the front protective cover, which is convenient for the staff to disassemble and assemble the rear protective cover and the front protective cover, and is convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a front schematic diagram of the utility model;

[0019] Figure 2 This is an explosion diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the inner structure of the rear protective cover;

[0021] Figure 4 It is a schematic diagram of the inner structure of the front protective cover;

[0022] Figure 5 This is an exploded view of the positioning component and the fixing mechanism part of the structure.

[0023] In the figure: 1. protection mechanism; 11. protection assembly; 1101. rear protection cover; 1102. front protection cover; 1103. clamping strip; 12. positioning assembly; 1201. panel; 1202. clamping rod; 2. fixing mechanism; 21. clamping assembly; 2101. limit plate; 2102. frame; 2103. positioning frame; 22. fixing assembly; 2201. flange; 2202. bolt; 3. rocker arm body; 4. collar. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The utility model provides a technical solution:

[0027] Embodiment 1

[0028] Combination Figures 1 to 5 A protective sleeve for a rear axle rocker arm cam shaft of an electric vehicle comprises a rocker arm body 3, a sleeve ring 4 is sleeved on the top of the rocker arm body 3, a protective mechanism 1 is arranged on the outside of the rocker arm body 3, and fixing mechanisms 2 are arranged on the left and right sides of the protective mechanism 1.

[0029] The protection mechanism 1 includes a protection component 11 and a positioning component 12 . The protection component 11 is sleeved on the top of the rocker arm body 3 , and the positioning component 12 is arranged on the left and right sides of the protection component 11 .

[0030] The protective component 11 includes a rear protective cover 1101, which is sleeved on the rear side of the top of the rocker arm body 3. A front protective cover 1102 is arranged on the front side of the rear protective cover 1101, which is sleeved on the front side of the top of the rocker arm body 3. A clamping strip 1103 is fixedly connected to the rear side of the front protective cover 1102, and the clamping strip 1103 is clamped in the front side of the rear protective cover 1101. The rear side of the front protective cover 1102 is tightly fitted with the front side of the rear protective cover 1101. The positioning component 12 includes an inlay plate 1201, which is clamped in the left and right sides of the rear protective cover 1101 and the front protective cover 1102. A clamping rod 1202 is fixedly connected to the inner side of the inlay plate 1201, and the clamping rod 1202 is clamped in the rear protective cover 1101 and the clamping strip 1103.

[0031] Furthermore: the rear protective cover 1101 and the front protective cover 1102 on the front and rear sides are spliced ​​and sleeved on the outer side of the top of the rocker arm body 3 to complete the protection of the rocker arm body 3 and the ring 4. The spliced ​​rear protective cover 1101 and the front protective cover 1102 can be disassembled and assembled, so that the inner sides of the rear protective cover 1101 and the front protective cover 1102 can fit tightly with the outer side of the rocker arm body 3. Compared with the one-piece protective cover, there is no need to reserve a gap for the rocker arm body 3 and disassembly and assembly, so that dust in the external air cannot enter the rear protective cover 1101 and the front protective cover 1102 to adhere to the rocker arm body 3, thereby improving the protection effect of the rocker arm body 3.

[0032] Embodiment 2

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 On the basis of the first embodiment, it is further obtained that the fixing mechanism 2 includes a positioning component 21 and a fixing component 22 , the positioning component 21 is arranged outside the protective component 11 , and the fixing component 22 is arranged inside the outside of the positioning component 21 .

[0034] The positioning assembly 21 includes a limit plate 2101, which is arranged on the outer side of the panel 1201. The inner side of the limit plate 2101 fits with the left and right sides of the rear protective cover 1101 and the front protective cover 1102. The outer side of the limit plate 2101 is sleeved with a sleeve frame 2102, and the sleeve frame 2102 is fixedly connected to the outer side of the panel 1201. The rear side of the limit plate 2101 is sleeved with a positioning frame 2103, and the positioning frame 2103 is fixedly connected to the left and right sides of the rear protective cover 1101. The fixing assembly 22 includes a flange 2201, which is fixedly connected to the outer side of the limit plate 2101. Bolts 2202 are arranged in the flange 2201, and the bolts 2202 pass through the limit plate 2101 and are threadedly connected to the left and right sides of the front protective cover 1102.

[0035] Furthermore, the staff only needs to insert the limit plate 2101 into the sleeve frame 2102 and then rotate the bolt 2202 to complete the fixation of the panel 1201, so that the panel 1201 can be fixed on the left and right sides of the rear protective cover 1101 and the front protective cover 1102 to complete the fixation of the rear protective cover 1101 and the front protective cover 1102, which is convenient for the staff to disassemble and assemble the rear protective cover 1101 and the front protective cover 1102 and convenient for the staff to use.

[0036] During the actual operation, when the device is used, when the collar 4 needs to be installed, the staff first sleeves the rear protective cover 1101 on the rear side of the top of the rocker arm body 3, and then the staff sleeves the front protective cover 1102 on the front side of the top of the rocker arm body 3. When the front protective cover 1102 and the rear protective cover 1101 are aligned, the clamping strip 1103 is clamped in the front side of the rear protective cover 1101. Then the staff clamps the panel 1201 in the left and right sides of the rear protective cover 1101 and the front protective cover 1102. The panel 1201 is clamped in the left and right sides of the rear protective cover 1101 and the front protective cover 1102 to drive the clamping rod 1 202 is clamped in the rear protective cover 1101 and the clamping strip 1103, and then the staff inserts the limit plate 2101 into the sleeve frame 2102 to make the rear side of the limit plate 2101 fit with the positioning frame 2103, and finally the staff inserts the bolt 2202 into the limit plate 2101 and rotates it. The bolt 2202 rotates on the inner circle of the front protective cover 1102 and moves inward until the bolts 2202 on the left and right sides can no longer rotate. At this time, the fixing work of the rear protective cover 1101 and the front protective cover 1102 on the front and rear sides is completed, and the installation of the rear protective cover 1101 and the front protective cover 1102 is completed.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A protective sleeve for a rocker arm cam shaft of an electric vehicle rear axle, comprising a rocker arm body (3), characterized in that: A collar (4) is sleeved inside the top of the rocker arm body (3), a protective mechanism (1) is arranged outside the rocker arm body (3), and fixing mechanisms (2) are arranged on the left and right sides of the protective mechanism (1); The protection mechanism (1) comprises a protection component (11) and a positioning component (12); the protection component (11) is sleeved on the top of the rocker arm body (3); and the positioning component (12) is arranged on the left and right sides of the protection component (11); The fixing mechanism (2) comprises a locking component (21) and a fixing component (22); the locking component (21) is arranged outside the protection component (11), and the fixing component (22) is arranged inside the outside of the locking component (21).

2. The electric vehicle rear axle rocker arm cam shaft protective sleeve according to claim 1, characterized in that: The protective assembly (11) comprises a rear protective cover (1101), wherein the rear protective cover (1101) is sleeved on the rear side of the top of the rocker arm body (3), and a front protective cover (1102) is arranged on the front side of the rear protective cover (1101), wherein the front protective cover (1102) is sleeved on the front side of the top of the rocker arm body (3).

3. The electric vehicle rear axle rocker arm cam shaft protective sleeve according to claim 2, characterized in that: The rear side of the front protective cover (1102) is fixedly connected with a clamping strip (1103), and the clamping strip (1103) is clamped in the front side of the rear protective cover (1101), so that the rear side of the front protective cover (1102) is tightly fitted with the front side of the rear protective cover (1101).

4. The electric vehicle rear axle rocker arm cam shaft protective sleeve according to claim 1, characterized in that: The positioning assembly (12) comprises a panel (1201), the panel (1201) being clamped in the left and right sides of the rear protective cover (1101) and the front protective cover (1102), a clamping rod (1202) being fixedly connected to the inner side of the panel (1201), and the clamping rod (1202) being clamped in the rear protective cover (1101) and the clamping strip (1103).

5. The electric vehicle rear axle rocker arm cam shaft protective sleeve according to claim 1, characterized in that: The positioning assembly (21) comprises a limiting plate (2101), the limiting plate (2101) being arranged on the outside of the panel (1201), the inner side of the limiting plate (2101) being in contact with the left and right sides of the rear protective cover (1101) and the front protective cover (1102), the outer side of the limiting plate (2101) being sleeved with a sleeve frame (2102), and the sleeve frame (2102) being fixedly connected to the outer side of the panel (1201).

6. The electric vehicle rear axle rocker arm cam shaft protective sleeve according to claim 5, characterized in that: A positioning frame (2103) is sleeved on the rear side of the limiting plate (2101), and the positioning frame (2103) is fixedly connected to the left and right sides of the rear protective cover (1101).

7. The electric vehicle rear axle rocker arm cam shaft protective sleeve according to claim 1, characterized in that: The fixing assembly (22) comprises a flange (2201), wherein the flange (2201) is fixedly connected to the outer side of the limiting plate (2101), and bolts (2202) are arranged inside the flange (2201), and the bolts (2202) pass through the limiting plate (2101) and are threadedly connected to the left and right sides of the front protective cover (1102).

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