Beam structure for electro-tricycle frame, electro-tricycle frame and electro-tricycle

Abstract

The beam structure comprises a longitudinal beam, a transverse beam and a connecting plate, the longitudinal beam is provided with a first beam plate, a second beam plate and a third beam plate, and the first beam plate and the third beam plate are connected to the two sides of the second beam plate in the first direction respectively. The first beam plate, the second beam plate and the third beam plate form a first cavity with an opening in one side; the cross beam is provided with a fourth beam plate, a fifth beam plate and a sixth beam plate, the fourth beam plate and the sixth beam plate are connected to the two sides of the fifth beam plate in the first direction respectively, and the fourth beam plate, the fifth beam plate and the sixth beam plate form a second cavity with an opening in one side; the connecting plates are fixedly connected with the fourth beam plate and the sixth beam plate of the cross beam respectively, are arranged close to the two end parts of the fourth beam plate and the sixth beam plate, and are used for fixedly connecting the longitudinal beam and the cross beam.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric tricycle, especially to a beam structure for electric tricycle frame, frame and electric tricycle. BACKGROUND

[0002] Electric tricycle has been widely used in common transportation, short-distance freight transportation, carrying and other production and life due to its lightness, flexibility and convenience. Since electric tricycle needs to carry a certain weight in use, the frame as its main load-bearing structure needs to have good bending resistance and strong carrying capacity.

[0003] The existing electric tricycle frame is generally made of square tube, which has strong rigidity and good bearing capacity, but its bending resistance and carrying capacity are relatively poor, which will affect the riding experience of the passengers, the loading capacity of the vehicle and the service life of the vehicle. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides a beam structure for electric tricycle frame, frame and electric tricycle, which has good bending resistance, enhances the carrying capacity of the vehicle, has good damping performance and prolongs the service life of the frame.

[0005] The technical scheme adopted by the utility model is: a beam structure for electric tricycle frame, comprising

[0006] The longitudinal beam has a first beam plate, a second beam plate and a third beam plate, the first beam plate and the third beam plate are connected to the two sides of the first direction of the second beam plate respectively, and the first beam plate, the second beam plate and the third beam plate form a first cavity with one side opening;

[0007] The cross beam has a fourth beam plate, a fifth beam plate and a sixth beam plate, the fourth beam plate and the sixth beam plate are connected to the two sides of the first direction of the fifth beam plate respectively, and the fourth beam plate, the fifth beam plate and the sixth beam plate form a second cavity with one side opening; and

[0008] The connecting plate is connected and fixed with the fourth beam plate and the sixth beam plate of the cross beam respectively, and is arranged close to the two end portions of the fourth beam plate and the sixth beam plate, and the connecting plate is used for connecting and fixing the longitudinal beam and the cross beam.

[0009] Further, the maximum distance H between the fourth beam plate and the sixth beam plate of the cross beam is less than the net distance h between the first beam plate and the third beam plate of the longitudinal beam.

[0010] Further, the connecting plate is respectively welded to the outer side of the fourth beam plate and the sixth beam plate of the cross beam.

[0011] Further, the connecting plate is provided with two structure forms according to requirements, the first structure is that the connecting plate comprises a first connecting sub-plate and a second connecting sub-plate, the first connecting sub-plate is isosceles trapezoidal structure, the top edge of the first connecting sub-plate is extended to form the second connecting sub-plate, and the first connecting sub-plate and the first edge of the second connecting sub-plate are fixedly connected as a whole.

[0012] For the cross beam connected to the longitudinal end, the connecting plate can be provided with the second structure, which comprises a third connecting sub-plate and a fourth connecting sub-plate, the third connecting sub-plate is right trapezoidal structure, the top edge of the third connecting sub-plate is extended to form the fourth connecting sub-plate, and the third connecting sub-plate and the fourth connecting sub-plate are fixedly connected as a whole. The fourth connecting sub-plate is connected and fixed with the fourth beam plate and the sixth beam plate of the cross beam, and the third connecting sub-plate is connected and fixed with the first beam plate and the third beam plate of the longitudinal beam, so that the cross beam and the longitudinal beam are connected.

[0013] Further, the closest distance L of the connecting plate to the end of the cross beam is not greater than the width W of the first direction of the first cavity of the longitudinal beam.

[0014] Further, the utility model also has a reinforcing piece, which is arranged in the first cavity of the longitudinal beam and is connected and fixed with the first beam plate and the third beam plate respectively

[0015] Further, the reinforcing piece is a square tube, a channel steel or a solid iron plate structure.

[0016] Further, a plurality of reinforcing pieces are arranged along the second direction of the first cavity.

[0017] Further, the first direction and the second direction are orthogonal.

[0018] Further, the two ends of the cross beam can be inserted into the first cavity of the longitudinal beam and connected and fixed, the outer side surfaces of the first beam plate and the third beam plate of the longitudinal beam are respectively attached to and welded with the inner side surfaces of the fourth beam plate and the sixth beam plate of the cross beam, and the bottom edges of the second connecting sub-plate and the fourth connecting sub-plate of the connecting plate are welded with the edges of the first beam plate and the third beam plate of the longitudinal beam.

[0019] A three-wheeled electric vehicle frame comprises

[0020] A front frame body,

[0021] The rear frame is arranged above the front frame and supported and fixed by the columns. The rear frame is composed of the two longitudinal beams and a plurality of cross beams. The two longitudinal beams are arranged in parallel with the openings of the first cavities facing each other. One end of the two longitudinal beams is connected and fixed by a cross beam. The remaining cross beams are arranged at intervals along the length of the longitudinal beams to form a frame structure. The reinforcement members are arranged at intervals from the cross beams.

[0022] The middle beam is located in the middle of the width of the electric tricycle frame, with its front end fixedly connected to the front frame body, and its rear end extends to the middle of the length of the rear frame body and is connected and fixed to the rear frame body by a column;

[0023] a battery box fixed to the lower front portion of the rear frame; and

[0024] The controller box is arranged close to the battery box.

[0025] Furthermore, the electric tricycle frame is also provided with a suspension beam, both ends of which are connected and fixed to the longitudinal beams, one side of the controller box is welded and fixed to one of the cross beams, and the other side is welded and fixed to the suspension beam.

[0026] Furthermore, the frame and transverse reinforcement beam of the front frame can also be made of the beam structure described above.

[0027] An electric tricycle, the frame of which adopts the electric tricycle frame described above.

[0028] The beneficial effects of the utility model are:

[0029] The utility model discloses a beam structure for an electric tricycle frame, a frame and an electric tricycle. The beam structure has strong bending resistance, and when the vehicle is loaded with heavy goods, the frame can recover in time when it is deformed by a vertical force; when the vehicle passes through a bumpy road, it has good shock absorption performance, thereby improving riding comfort; it has strong load-bearing capacity, thereby preventing the vehicle from being damaged when transporting heavy goods; the provided connecting plate can increase the connection strength between the crossbeam and the longitudinal beam, thereby improving the load-bearing capacity of the frame; the provided reinforcement member can increase the strength of the stress-bearing part of the vehicle, thereby enhancing its loading capacity. The utility model improves the vehicle performance without increasing the cost, thereby extending the service life of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of the beam structure of the utility model;

[0031] Figure 2 Schematic diagram of the structure of the longitudinal beam;

[0032] Figure 3 is a schematic cross-sectional view of the longitudinal beam;

[0033] Figure 4 Schematic diagram of the structure of the beam;

[0034] Figure 5 is a sectional view of the cross beam;

[0035] Figure 6 is a schematic view of a connection plate structure of the first structure;

[0036] Figure 7 is a schematic view of the connection of the connection plate and the cross beam of the first structure;

[0037] Figure 8 is a schematic view of a connection plate structure of the second structure;

[0038] Figure 9 is a schematic view of the connection of the connection plate and the cross beam of the second structure;

[0039] Figure 10 is a schematic view of the vehicle frame from above;

[0040] Figure 11 is a sectional view of A-A of Figure 10 .

[0041] In the figure, 1 - beam structure,

[0042] 11 - longitudinal beam, 11a - first beam plate, 11b - second beam plate, 11c - third beam plate, 111 - first cavity;

[0043] 12 - cross beam, 12a - fourth beam plate, 12b - fifth beam plate, 12c - sixth beam plate, 121 - second cavity;

[0044] 13 - connection plate, 131 - first connection sub-plate, 132 - second connection sub-plate, 133 - third connection sub-plate, 134 - fourth connection sub-plate;

[0045] 14 - reinforcement;

[0046] 2 - front frame body, 21 - frame, 22 - transverse reinforcement beam;

[0047] 3 - rear frame body;

[0048] 4 - upright;

[0049] 5 - middle beam;

[0050] 6 - battery box;

[0051] 7 - controller box. DETAILED DESCRIPTION Example 1

[0052] As Figures 1-9 shown in the figure, a beam structure 1 for an electric tricycle frame includes

[0053] the longitudinal beam 11 has a first beam plate 11a, a second beam plate 11b and a third beam plate 11c, the first beam plate 11a and the third beam plate 11c are connected to two sides of the second beam plate 11b in the first direction respectively, and the first beam plate 11a, the second beam plate 11b and the third beam plate 11c form a first cavity 111 with one side open;

[0054] the cross beam 12 has a fourth beam plate 12a, a fifth beam plate 12b and a sixth beam plate 12c, the fourth beam plate 12a and the sixth beam plate 12c are connected to two sides of the fifth beam plate 12b in the first direction respectively, and the fourth beam plate 12a, the fifth beam plate 12b and the sixth beam plate 12c form a second cavity 121 with one side open; and

[0055] the connecting plate 13 is connected and fixed with the fourth beam plate 12a and the sixth beam plate 12c of the cross beam 12 respectively, and is arranged close to two ends of the fourth beam plate 12a and the sixth beam plate 12c, and the connecting plate 13 is used for connecting and fixing the longitudinal beam 11 and the cross beam 12.

[0056] the maximum distance H between the fourth beam plate 12a and the sixth beam plate 12c of the cross beam 12 is less than the net distance h between the first beam plate 11a and the third beam plate 11c of the longitudinal beam 11.

[0057] the connecting plate 13 is welded to the outer side of the fourth beam plate 12a and the sixth beam plate 12c of the cross beam 12 respectively.

[0058] the connecting plate 13 includes a first connecting sub-plate 131 and a second connecting sub-plate 132, the first connecting sub-plate 131 is isosceles trapezoidal structure, the top edge of the first connecting sub-plate 131 extends to form the second connecting sub-plate 132, and the first connecting sub-plate 131 and the first edge of the second connecting sub-plate 132 are fixedly connected as a whole, the second connecting sub-plate 132 is connected and fixed with the fourth beam plate 12a and the sixth beam plate 12c of the cross beam 12, the first connecting sub-plate 131 is connected and fixed with the first beam plate 11a and the third beam plate 11c of the longitudinal beam 11, and the connection of the cross beam 12 and the longitudinal beam 11 is realized.

[0059] for the cross beam 12 connected to the end of the longitudinal beam 11, the connecting plate 13 can be arranged to include a third connecting sub-plate 133 and a fourth connecting sub-plate 134, the third connecting sub-plate 133 is a right-angle trapezoidal structure, the top edge of the third connecting sub-plate 133 extends to form the fourth connecting sub-plate 134, and the third connecting sub-plate 133 and the fourth connecting sub-plate 134 are fixedly connected as a whole, the fourth connecting sub-plate 133 is connected and fixed with the fourth beam plate 12a and the sixth beam plate 12c of the cross beam 12, the third connecting sub-plate 131 is connected and fixed with the first beam plate 11a and the third beam plate 11c of the longitudinal beam 11, and the connection of the cross beam 12 and the longitudinal beam 11 is realized.

[0060] The closest distance L of the connecting plate 13 to the end of the cross beam 12 is not greater than the width W of the first direction of the first cavity 111 of the longitudinal beam 11.

[0061] The utility model also has reinforcing member 14, its arrangement is in the first cavity 111 of longitudinal beam 11, and is connected with first beam plate 11a and third beam plate 11c respectively fixed

[0062] The reinforcing member 14 is a square tube, a channel steel or a solid iron plate structure.

[0063] The reinforcing member 14 is provided with multiple, and is arranged along the second direction of first cavity 111.

[0064] The first direction and the second direction are orthogonal.

[0065] The both ends of the cross beam 12 can be inserted into the first cavity 111 of the longitudinal beam 11 and be connected and fixed, the outer side of the first beam plate 11a and the third beam plate 13 of the longitudinal beam 11 respectively with the inner side of the fourth beam plate 12a and the sixth beam plate 12c of the cross beam 12 are pasted and welded fixed, the bottom edge of the second connecting sub-plate 132 and the fourth connecting sub-plate 134 of the connecting plate 13 are welded fixed with the edge of the first beam plate 12a and the third beam plate 12c of the longitudinal beam 11. Embodiment 2

[0066] As Figures 10-11 The utility model provides a kind of electric tricycle frame, including

[0067] Front frame body 2,

[0068] Rear frame body 3, it is set to the upper of front frame body 2, is supported and fixed by stand 4, the rear frame body 3 is combined by the above two longitudinal beams 11 and several cross beams 12, the two longitudinal beams 11 are arranged in parallel, and the opening of first cavity 111 is opposite, and one end is connected and fixed by a cross beam 12, and the remaining cross beam 12 is arranged along the length interval of longitudinal beam 11, forms frame structure, and reinforcing member 14 is arranged at interval with cross beam 12;

[0069] Middle beam 5, it is located in the middle of the width of electric tricycle frame, and its front end is fixedly connected with front frame body 2, and rear portion extends to the middle of the length of rear frame body 3, and is connected and fixed by stand 4 with rear frame body 3;

[0070] Battery box 6, it is fixed in the front lower of rear frame body 3;

[0071] Controller box 7, it is close to battery box 6 and is arranged.

[0072] In the embodiment, a suspension beam 8 is arranged, two ends of which are fixedly connected with the longitudinal beams 11, one side of the controller box 7 is fixedly welded with one of the transverse beams 12, and the other side is fixedly welded with the suspension beam 6.

[0073] The frame 21 and the transverse reinforcing beam 22 of the front frame body 2 can also be made of the beam structure 1 described above. Embodiment 3

[0074] An electric tricycle, the frame of which is the electric tricycle frame described in Embodiment 2 or Embodiment 3.

Claims

1. A beam structure for an electrically powered tricycle frame, characterized by The longitudinal beam has a first beam plate, a second beam plate and a third beam plate, the first beam plate and the third beam plate are connected to the two sides of the second beam plate in the first direction respectively, and the first beam plate, the second beam plate and the third beam plate form a first cavity with one side opening; The transverse beam has a fourth beam plate, a fifth beam plate and a sixth beam plate, the fourth beam plate and the sixth beam plate are connected to the two sides of the fifth beam plate in the first direction respectively, and the fourth beam plate, the fifth beam plate and the sixth beam plate form a second cavity with one side opening; And The connecting plate is connected and fixed with the fourth beam plate and the sixth beam plate of the transverse beam respectively, and is arranged close to the two end portions of the fourth beam plate and the sixth beam plate, and the connecting plate is used for connecting and fixing the longitudinal beam and the transverse beam. The maximum distance H between the fourth beam plate and the sixth beam plate of the transverse beam is less than the net distance h between the first beam plate and the third beam plate of the longitudinal beam.

2. A beam structure for an electrically powered tricycle frame according to claim 1, characterized in that The connecting plate is welded to the outer side of the fourth beam plate and the sixth beam plate of the transverse beam respectively; the nearest distance L of the connecting plate to the end portion of the transverse beam is not greater than the width W of the first cavity of the longitudinal beam in the first direction.

3. The beam structure for an electrically powered tricycle frame according to claim 1, wherein The connecting plate is provided with two structure forms, the first structure is that the connecting plate comprises a first connecting sub-plate and a second connecting sub-plate, the first connecting sub-plate is isosceles trapezoidal structure, the top edge of the first connecting sub-plate extends to form the second connecting sub-plate, and the first connecting sub-plate and the first edge of the second connecting sub-plate are fixedly connected as a whole; the second connecting sub-plate is connected and fixed with the fourth beam plate and the sixth beam plate of the transverse beam, the first connecting sub-plate is connected and fixed with the first beam plate and the third beam plate of the longitudinal beam, and the connection of the transverse beam and the longitudinal beam is realized; or 4. The beam structure for an electrically powered tricycle frame according to claim 1, wherein The second structure is that the connecting plate comprises a third connecting sub-plate and a fourth connecting sub-plate, the third connecting sub-plate is right-angled trapezoidal structure, the top edge of the third connecting sub-plate extends to form the fourth connecting sub-plate, and the third connecting sub-plate and the fourth connecting sub-plate are fixedly connected as a whole; the fourth connecting sub-plate is connected and fixed with the fourth beam plate and the sixth beam plate of the transverse beam, the third connecting sub-plate is connected and fixed with the first beam plate and the third beam plate of the longitudinal beam, and the connection of the transverse beam and the longitudinal beam is realized. The two ends of the transverse beam can be inserted into the first cavity of the longitudinal beam for connection and fixation, the outer side surfaces of the first beam plate and the third beam plate of the longitudinal beam are respectively attached to and welded with the inner side surfaces of the fourth beam plate and the sixth beam plate of the transverse beam, and the bottom edge of the second connecting sub-plate and the fourth connecting sub-plate of the connecting plate are welded with the edges of the first beam plate and the third beam plate of the longitudinal beam.

5. The beam structure for an electrically powered tricycle frame according to claim 1, wherein A reinforcing member is arranged in the first cavity of the longitudinal beam and connected and fixed with the first beam plate and the third beam plate respectively; a plurality of reinforcing members are arranged along the second direction of the first cavity, and the first direction and the second direction are orthogonal.

6. The beam structure for an electrically powered tricycle frame according to claim 1, wherein The reinforcing member is a square tube, a channel steel or a solid iron plate structure.

7. A beam structure for an electrically powered tricycle frame according to claim 6, characterised in that, 8. An electric tricycle frame, comprising a front frame body, a rear frame body, a middle beam, a battery box and a controller box, characterized in that, ​ The rear frame body is composed of two longitudinal beams and several cross beams according to any one of claims 1-6, the two longitudinal beams are arranged in parallel, and the openings of the first cavities are opposite, one end of which is connected and fixed by a cross beam, and the remaining cross beams are arranged at intervals along the length of the longitudinal beam to form a frame structure, and the reinforcing members are arranged at intervals with the cross beams.

9. An electrically powered tricycle frame according to claim 8, characterised in that, The front frame body is made of the beam structure according to any one of claims 1-6.

10. An electric tricycle, characterized by The vehicle frame adopts the vehicle frame according to any one of claims 8-9.

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