Motor protection shell

Abstract

The invention discloses a motor protection shell, and relates to the technical field of electric tricycle motors. The motor protection shell comprises a support ring, wherein an electro-tricycle motor to be mounted is fixed on the support ring; the number of the arc-shaped supporting strips is multiple, and the multiple arc-shaped supporting strips are all arranged on one side of the supporting ring; the movable rotary drum is movably arranged on the plurality of arc-shaped supporting strips; the buffer cylinder is arranged outside the movable rotating cylinder; the multiple helical tooth pieces are arranged on the outer portion of the buffer cylinder, and the multiple helical tooth pieces are evenly distributed along the circumference of the axis of the buffer cylinder; one end of the torsion spring is fixed on the supporting ring, and the other end of the torsion spring is matched with the buffer cylinder; the protection effect on the motor of the electro-tricycle is enhanced, and damage to the motor of the electro-tricycle can be effectively reduced or avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electric tricycle motors, in particular to a motor protection shell. Background Art

[0002] The motor is one of the core components of an electric tricycle. The shells of most existing electric tricycle motors can only provide simple covering and cannot effectively resist impact. Although some electric tricycle motors have protective casings such as boxes or frames on the outside, their buffering and energy absorption effects are average, and they cannot provide good protection when hit. Summary of the invention

[0003] The object of the present invention is to provide a motor protection shell which can enhance the protective effect and thus effectively reduce or avoid damage to the motor of an electric tricycle.

[0004] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a motor protective shell, comprising: a support ring, an electric tricycle motor to be installed is used to be fixed on the support ring; an arc-shaped support bar, a plurality of the arc-shaped support bars are provided, and the plurality of the arc-shaped support bars are all arranged on one side of the support ring; a movable rotating drum, the movable rotating drum is movably arranged on the plurality of the arc-shaped support bars; a buffer cylinder, the buffer cylinder is arranged outside the movable rotating drum; a helical gear, a plurality of the helical gears are provided outside the buffer cylinder, and the plurality of the helical gears are evenly distributed along the circumference of the axis of the buffer cylinder; a torsion spring, one end of the torsion spring is fixed on the support ring, the other end of the torsion spring cooperates with the buffer cylinder, and the torsion spring is sleeved on the outside of the electric tricycle motor to be installed.

[0005] Furthermore, the helical gear member includes: a connecting portion, which is arranged outside the buffer tube and is inclined; an arc portion, which connects the connecting portion; and an extension portion, wherein one end of the arc portion away from the connecting portion extends in a straight line to form the extension portion.

[0006] Furthermore, each of the arc-shaped support bars is provided with a slide groove, and the movable rotating drum is cooperatively arranged in each of the slide grooves.

[0007] Furthermore, a protrusion is provided at one end of the buffer tube away from the support ring, an open groove is provided on the protrusion, and one end of the torsion spring is matched and arranged in the open groove.

[0008] Furthermore, it also includes: a folded spring, each of the arc-shaped support strips is provided with the folded spring at one end away from the support ring; a support seat, each of the folded springs is provided with the support seat; a nylon contact head, each of the support seats is provided with a nylon contact head, and the nylon contact head contacts the outer wall of one of the arc-shaped parts.

[0009] Furthermore, it also includes: a rear cover plate, which is connected to all the support seats and has a plurality of through holes evenly distributed on the rear cover plate.

[0010] Furthermore, the movable rotating drum is provided with a plurality of first elongated holes.

[0011] Furthermore, a plurality of second elongated holes are provided through the buffer tube, and the plurality of second elongated holes and the plurality of helical gear members are alternately provided.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0013] 1. When the helical gear hits an external object, the impact of the collision is mitigated by the deformation of the helical gear and the buffer cylinder; at the same time, it is easy to cause the buffer cylinder and the movable rotating cylinder to rotate, thereby achieving an energy absorption effect; and when the buffer cylinder rotates, it causes the torsion spring to deform, further improving the buffering energy absorption effect.

[0014] 2. The rear end of the electric tricycle motor is protected by providing a rear cover. When the rear cover hits a foreign object, the folded spring is deformed to reduce the impact. When the nylon contact head squeezes the arc-shaped portion, the nylon contact head and the arc-shaped portion are deformed, which can easily cause the buffer cylinder and the movable rotating cylinder to rotate, thereby effectively reducing the impact of the collision.

[0015] 3. The torsion spring, the movable rotating cylinder and the buffer cylinder are all sleeved on the outside of the electric tricycle motor, achieving a multi-layer protection effect for the electric tricycle motor; in addition, the present invention is also provided with a rear cover plate to effectively protect the electric tricycle motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of embodiment 1 of the present invention from another angle.

[0019] Figure 3 It is a schematic diagram of the installation of the movable drum in the first embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the arrangement of arc-shaped support bars according to the first embodiment of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the buffer cylinder and the helical gear member of the first embodiment of the present invention.

[0022] Figure 6 It is a schematic structural diagram of the buffer cylinder and the helical gear member at another angle according to the first embodiment of the present invention.

[0023] Figure 7 It is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0024] Figure 8 It is a schematic diagram of the installation of the support base, folded spring leaf, and nylon contact head of the second embodiment of the present invention.

[0025] Fig. 9 It is a schematic diagram of the cooperation between the nylon abutment head and the helical gear member according to the second embodiment of the present invention.

[0026] Fig.10 This is a schematic diagram of the arrangement of nylon contact heads according to the second embodiment of the present invention.

[0027] Fig.11 It is a schematic diagram of the cooperation between the back cover and the support base of the second embodiment of the present invention.

[0028] Explanation of the reference numerals: 1. Support ring; 2. Arc-shaped support strip; 21. Slide groove; 3. Buffer cylinder; 31. Protrusion; 311. Open groove; 32. Bevel gear; 321. Connecting portion; 322. Arc-shaped portion; 323. Extension portion; 33. Second long hole; 4. Movable rotating cylinder; 41. First long hole; 5. Torsion spring; 6. Rear cover; 7. Folding spring leaf; 8. Support seat; 9. Nylon contact head. DETAILED DESCRIPTION

[0029] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] Embodiment 1 See also Figure 1-Figure 3 The present invention provides a technical solution: a motor protective shell, comprising a support ring 1, an electric tricycle motor to be installed (hereinafter referred to as the motor) is fixed on the support ring 1, specifically, one end of the motor can be fixed on the support ring 1 by bolts or screws, and a part of the motor passes through the support ring 1; three arc-shaped support bars 2 are arranged on one end face of the support ring 1, and a movable rotating drum 4 is commonly arranged on the three arc-shaped support bars 2, the movable rotating drum 4 can rotate along its own axis, and the three arc-shaped support bars 2 are evenly distributed along the circumference of the axis of the movable rotating drum 4; a buffer cylinder 3 is provided on the outer fixed sleeve of the movable rotating drum 4, the buffer cylinder 3 is coaxial with the movable rotating drum 4, and a plurality of helical gears 32 are arranged on the outer ring surface of the buffer cylinder 3, and the plurality of helical gears 32 are evenly distributed along the circumference of the axis of the buffer cylinder 3.

[0031] The motor protection shell also includes a torsion spring 5, one end of which is fixed on the support ring 1, and the other end of the torsion spring 5 is matched with the buffer cylinder 3. The torsion spring 5 is sleeved on the outside of the motor, and the movable rotating cylinder 4 is sleeved on the outside of the middle part of the torsion spring 5.

[0032] See also Figure 3-Figure 4 Each arc-shaped support bar 2 is provided with a slide groove 21, and the three slide grooves 21 are evenly distributed along the circumference of the axis of the movable rotating drum 4; the movable rotating drum 4 is arranged in the three slide grooves 21, so that the movable rotating drum 4 can rotate around its own axis.

[0033] See also Figure 2 , Figure 5 as well as Figure 6 The helical gear 32 includes a connecting portion 321 disposed on the outer ring surface of the buffer cylinder 3, an arc portion 322 is disposed at one end of the connecting portion 321 away from the buffer cylinder 3, and an end of the arc portion 322 away from the connecting portion 321 extends along a straight line to form an extension portion 323. The helical gear 32 and the buffer cylinder 3 are an integrally formed structure, and the helical gear 32 and the buffer cylinder 3 can be made of polyethylene, so that the buffer cylinder 3 and the helical gear 32 have good elasticity and impact resistance performance; the connecting portion 321 is inclined, and as Figure 6 As shown, the front end of the topmost connecting portion 321 of the buffer tube 3 is higher than the rear end of the connecting portion 321 ; and a plurality of helical gear members 32 evenly distributed around the circumference just cover the outside of the buffer tube 3 .

[0034] A protrusion 31 is provided at one end of the buffer tube 3 away from the support ring 1 , an opening groove 311 is provided on the protrusion 31 , and one end of the torsion spring 5 away from the support ring 1 is clamped and fitted in the opening groove 311 .

[0035] See again Figure 2 and Figure 3 A plurality of first long holes 41 are provided through the movable rotating drum 4, and the plurality of first long holes 41 are evenly distributed along the circumference of the axis of the movable rotating drum 4; a plurality of second long holes 33 are provided through the buffer cylinder 3, and the plurality of second long holes 33 and the plurality of bevel gear members 32 are alternately provided; by providing the first long holes 41 and the second long holes 33, the heat dissipation of the motor is avoided from being affected.

[0036] See also Figure 1-Figure 6In this embodiment, by placing the motor fixing seat on the support ring 1, the motor can be normally installed on the electric tricycle; since the torsion spring 5, the movable rotating drum 4 and the buffer cylinder 3 are all sleeved on the outside of the motor, a multi-layer protection effect is achieved for the motor; at the same time, when a collision occurs and the helical gear 32 hits a foreign object, the deformation of the helical gear 32 and the buffer cylinder 3 facilitates the mitigation of the collision impact; at the same time, since the helical gear 32 is arranged as a whole in an inclined manner, the positions of the two ends of the connecting part 321 do not correspond, and the movable rotating drum 4 is rotatable, so in the process of the helical gear 32 hitting a foreign object, it is easy to cause the buffer cylinder 3 and the movable rotating drum 4 to rotate, and energy absorption is achieved through the rotation of the buffer cylinder 3 and the movable rotating drum 4; and when the buffer cylinder 3 rotates, it will cause the torsion spring 5 to deform, further improving the buffering energy absorption effect, effectively mitigating the collision impact, and thereby reducing or avoiding damage to the motor.

[0037] Embodiment 2 See also Figure 7-Figure 11 This embodiment is based on the first embodiment, and a folded spring sheet 7 is fixedly provided at one end of each arc-shaped support strip 2 away from the support ring 1, and a support seat 8 is provided at one end of the folded spring sheet 7 away from the support seat 8, and a nylon contact head 9 is provided on the support seat 8. The end of the nylon contact head 9 away from the support seat 8 is in the shape of a bullet head, and the end of the nylon contact head 9 away from the support seat 8 contacts the outer wall of one of the arc-shaped parts 322, that is, the three nylon contact heads 9 contact the outer walls of the three arc-shaped parts 322 respectively; the material of the folded spring sheet 7 can be copper, so that the folded copper sheet has good elasticity.

[0038] The three support seats 8 are commonly connected to a rear cover plate 6, and the rear cover plate 6 can be connected to each support seat 8 by means of screws or the like; at the same time, a plurality of through holes 61 are also provided on the rear cover plate 6; by providing a plurality of through holes 61, the heat dissipation of the motor is avoided from being affected.

[0039] In this embodiment, the rear end of the motor is protected by providing a rear cover 6; when the rear cover 6 collides with a foreign object, the rear cover 6 causes the folded spring 7 to deform, thereby alleviating the impact; and when the rear cover 6 moves toward the direction close to the motor, the nylon contact head 9 will also squeeze the corresponding arc portion 322, and the impact is further alleviated by the deformation of the nylon contact head 9 and the arc portion 322; and when the nylon contact head 9 squeezes the arc portion 322, it is easy to cause the buffer cylinder 3 and the movable rotating cylinder 4 to rotate, and energy is absorbed by the rotation of the buffer cylinder 3 and the movable rotating cylinder 4. When the buffer cylinder 3 rotates, it can cause the torsion spring 5 to deform, thereby effectively alleviating the collision impact; therefore, the motor is effectively protected, and damage to the motor can be reduced or avoided during the entire impact process of the protective shell.

[0040] 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.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor protective case, characterized in that: include: A support ring (1), the electric tricycle motor to be installed being used to be fixed on the support ring (1); An arc-shaped support bar (2), wherein the arc-shaped support bar (2) is provided in plurality, and the plurality of arc-shaped support bars (2) are all arranged on one side of the support ring (1); A movable rotating drum (4), wherein the movable rotating drum (4) is movably arranged on the plurality of arc-shaped support bars (2); A buffer cylinder (3), wherein the buffer cylinder (3) is arranged outside the movable rotating cylinder (4); Helical gear members (32), a plurality of the helical gear members (32) being arranged outside the buffer cylinder (3), and the plurality of the helical gear members (32) being evenly distributed along the circumference of the axis of the buffer cylinder (3); A torsion spring (5), one end of the torsion spring (5) is fixed on the support ring (1), the other end of the torsion spring (5) is matched with the buffer cylinder (3), and the torsion spring (5) is sleeved on the outside of the electric tricycle motor to be installed.

2. A motor protection case according to claim 1, characterized in that: The helical gear member (32) comprises: A connecting portion (321), the connecting portion (321) being arranged outside the buffer cylinder (3), and the connecting portion (321) being arranged obliquely; An arc-shaped portion (322), the arc-shaped portion (322) being connected to the connecting portion (321); An extension portion (323), wherein one end of the arc-shaped portion (322) away from the connecting portion (321) extends in a straight line to form the extension portion (323).

3. The motor protection case according to claim 1, characterized in that: Each of the arc-shaped support bars (2) is provided with a slide groove (21), and the movable rotating drum (4) is cooperatively arranged in each of the slide grooves (21).

4. The motor protection case according to claim 1, characterized in that: A protrusion (31) is provided at one end of the buffer cylinder (3) away from the support ring (1), an opening groove (311) is provided on the protrusion (31), and one end of the torsion spring (5) is arranged in the opening groove (311).

5. The motor protection case according to claim 2, characterized in that: Also includes: A folded spring leaf (7), wherein the folded spring leaf (7) is provided at one end of each of the arc-shaped support strips (2) away from the support ring (1); A support seat (8), each of the folded spring leaves (7) being provided with the support seat (8); A nylon abutment head (9), each of the support seats (8) is provided with a nylon abutment head (9), and the nylon abutment head (9) abuts against an outer wall of one of the arc-shaped portions (322).

6. A motor protection case according to claim 5, characterized in that: Also includes: A rear cover plate (6), the rear cover plate (6) being connected to all the support seats (8), and the rear cover plate (6) having a plurality of through holes (61) evenly distributed on the rear cover plate (6).

7. The motor protection case according to claim 1, characterized in that: The movable rotating drum (4) is provided with a plurality of first elongated holes (41) extending through it.

8. The motor protection case according to claim 1, characterized in that: The buffer cylinder (3) is provided with a plurality of second elongated holes (33) penetrating therethrough, and the plurality of second elongated holes (33) and the plurality of helical gear members (32) are arranged alternately.

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