Connecting rod for electric carrier

Abstract

The utility model relates to the technical field of electric carrier parts, and discloses a connecting rod for an electric carrier, which comprises a hollow main rod, the inner wall of the hollow main rod is fixedly connected with a telescopic support, the upper side and the lower side of the inner wall of the hollow main rod are fixedly connected with limiting columns, and the surfaces of the limiting columns are contacted with the inner wall of the telescopic support. The elliptical plates at the front end and the rear end of the hollow main rod can synchronously and reversely move by rotating the first screw rod and the second screw rod on the telescopic support, meanwhile, when the elliptical plates and the hollow main rod clamp the side connecting rods, the side connecting rods can be fixed to the hollow main rod through cooperation of the elliptical plates, the elliptical rings, the positioning grooves and the limiting columns, and therefore the side connecting rods can be fixed to the hollow main rod. When the elliptical plate and the hollow main rod loosen the side connecting rods, the side connecting rods can be directly disassembled, and then the two side connecting rods on the connecting rod can be disassembled and assembled at the same time by rotating the first screw rod and the second screw rod, so that the connecting rod is relatively convenient to disassemble or assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of electric transport vehicle parts, in particular to a connecting rod used for an electric transport vehicle. Background Art

[0002] Electric transport trucks are logistic handling equipment used to transport goods. They use batteries as power sources and motors as power. They are driven by gear transmission to drive the vehicle to move. The lifting of the fork relies on a DC motor and hydraulic transmission to push the oil cylinder up and down to lift the fork and goods. Since the vehicle is electrically driven for both traveling and lifting, the driving mode is standing driving, and the steering operation is a tiller steering, it has the characteristics of labor saving, high efficiency, stable cargo movement, simple operation, safety and reliability, low noise, and no pollution.

[0003] At present, the connecting rod of an electric transport truck is mainly composed of a connecting main rod and two side connecting rods. For example, Chinese patent publication No. CN209781443U discloses a lower connecting rod for an electric transport truck. However, since the two side connecting rods on the connecting main rod need to be disassembled and assembled separately, the connecting rod is more troublesome to assemble or disassemble. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. For example, at present, the connecting rod of the electric transport vehicle is mainly composed of a connecting main rod and two side connecting rods. However, since the two side connecting rods on the connecting main rod need to be disassembled and assembled separately, it is more troublesome to assemble or disassemble the connecting rod. A connecting rod for an electric transport vehicle is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connecting rod for an electric transport vehicle comprises a hollow main rod, an inner wall of the hollow main rod is fixedly connected to a telescopic bracket, upper and lower sides of the inner wall of the hollow main rod are fixedly connected to limit columns, the surface of the limit column contacts the inner wall of the telescopic bracket, an elliptical plate is fixedly connected to the surface of the telescopic bracket, side connecting rods are fitted on the surface of the elliptical plate and the front and rear ends of the hollow main rod, an elliptical hole is provided inside the side connecting rod, an elliptical ring is fixedly connected to the inner wall of the elliptical hole, the inner wall of the elliptical ring contacts the surface of the telescopic bracket, positioning grooves are provided on upper and lower sides of the inner wall of the elliptical ring, and the inner wall of the positioning groove contacts the surface of the limit column.

[0007] Preferably, the telescopic bracket includes a bearing, the surface of the bearing is fixedly connected to the inner wall of the hollow main rod, the inner wall of the bearing is fixedly connected to a cylinder, the inner wall of the cylinder is fixedly connected to a first screw, the back side of the first screw and the inner wall of the cylinder are both fixedly connected to the second screw, the surface of the first screw and the surface of the second screw are both threadedly connected to a threaded barrel, the upper and lower sides of the threaded barrel are provided with sliding grooves, the inner wall of the sliding groove contacts the surface of the limit column, the surface of the threaded barrel contacts the inner wall of the elliptical ring, the end of the threaded barrel away from the cylinder is fixedly connected to the surface of the elliptical plate, the surfaces of the first screw and the second screw contact the inner wall of the elliptical plate, and the front side of the first screw and the front side of the second screw are both provided with a first cross groove.

[0008] Preferably, the shape of the inner wall of the elliptical ring is equal to that of the elliptical plate, the center of the elliptical plate and the axis of the threaded barrel are on the same horizontal line, and the minor axis length of the elliptical plate is equal to the outer diameter length of the threaded barrel.

[0009] Preferably, centers of the first screw, the second screw and the first cross groove are all on the same horizontal line, and the thread direction of the first screw is opposite to that of the second screw.

[0010] Preferably, the upper surfaces of the first screw and the second screw are both provided with thread grooves, the inner walls of the thread grooves are threadedly connected with a third screw, the upper surface of the third screw is provided with a second cross groove, and the surface of the third screw contacts the surface of the elliptical plate.

[0011] Preferably, a first connecting hole is opened inside the side connecting rod, and a second connecting hole is opened inside the side connecting rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model can make the elliptical plates at the front and rear ends of the hollow main rod move synchronously and in opposite directions by rotating the first screw and the second screw on the telescopic bracket. At the same time, when the elliptical plates and the hollow main rod clamp the side connecting rod, the side connecting rod can be fixed on the hollow main rod through the cooperation of the elliptical plates, the elliptical rings, the positioning grooves and the limit columns. When the elliptical plates and the hollow main rod release the side connecting rod, the side connecting rod can be directly removed. Then, by rotating the first screw and the second screw, the two side connecting rods on the connecting rod can be disassembled and assembled at the same time, so that the connecting rod is more convenient to disassemble or assemble.

[0014] (2) The utility model provides a thread groove, a third screw rod and a second cross groove, wherein when the third screw rod is screwed into the thread groove, the third screw rod is fixed in the thread groove through the thread, and the third screw rod is used to prevent the distance between the elliptical plate and the hollow main rod from changing, thereby preventing the side connecting rod and the hollow main rod from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Sectional view at AA;

[0017] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0018] Figure 4 It is a front view of the hollow main rod of the utility model;

[0019] Figure 5 It is a front view of the telescopic bracket in the utility model;

[0020] Figure 6 for Figure 5 Sectional view at CC;

[0021] Figure 7 It is a front view of the side connecting rod of the utility model;

[0022] Figure 8 It is a top view of the third screw in the utility model.

[0023] In the figure: 1. hollow main rod; 2. telescopic bracket; 201. bearing; 202. cylinder; 203. first screw; 204. second screw; 205. threaded cylinder; 206. slide groove; 207. first cross groove; 3. limit column; 4. elliptical plate; 5. side connecting rod; 6. elliptical hole; 7. elliptical ring; 8. positioning groove; 9. threaded groove; 10. third screw; 11. second cross groove; 12. first connecting hole; 13. second connecting hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Embodiment 1:

[0027] Reference Figure 1-7 A connecting rod for an electric transport vehicle comprises a hollow main rod 1, a telescopic bracket 2 is fixedly connected to the inner wall of the hollow main rod 1, a limiting column 3 is fixedly connected to the upper and lower sides of the inner wall of the hollow main rod 1, the surface of the limiting column 3 contacts the inner wall of the telescopic bracket 2, an elliptical plate 4 is fixedly connected to the surface of the telescopic bracket 2, a side connecting rod 5 is provided on the surface of the elliptical plate 4 and the front and rear ends of the hollow main rod 1, an elliptical hole 6 is opened inside the side connecting rod 5, an elliptical ring 7 is fixedly connected to the inner wall of the elliptical hole 6, the inner wall of the elliptical ring 7 contacts the surface of the telescopic bracket 2, and the shape of the inner wall of the elliptical ring 7 is consistent with that of the elliptical plate 4 are of equal shape, positioning grooves 8 are provided on the upper and lower sides of the inner wall of the elliptical ring 7, and the inner wall of the positioning groove 8 contacts the surface of the limiting column 3. When the positioning groove 8 contacts the limiting column 3, the side connecting rod 5 cannot rotate on the telescopic bracket 2 through the cooperation of the positioning groove 8 and the limiting column 3. When the elliptical plate 4 is staggered with the elliptical ring 7, the side connecting rod 5 and the telescopic bracket 2 cannot be separated through the elliptical plate 4. When the elliptical plate 4 is aligned with the elliptical ring 7, the side connecting rod 5 can be separated from the telescopic bracket 2. A first connecting hole 12 is provided inside the side connecting rod 5, and a second connecting hole 13 is provided inside the side connecting rod 5.

[0028] The telescopic bracket 2 includes a bearing 201, the surface of the bearing 201 is fixedly connected to the inner wall of the hollow main rod 1, the inner wall of the bearing 201 is fixedly connected to a cylinder 202, the inner wall of the cylinder 202 is fixedly connected to a first screw 203, the back of the first screw 203 and the inner wall of the cylinder 202 are fixedly connected to a second screw 204, the first screw 203 and the second screw 204 are fixedly connected together through the cylinder 202, and the first screw 203 and the second screw 204 can rotate synchronously, the surface of the first screw 203 and the surface of the second screw 204 are threadedly connected to a threaded cylinder 205, the upper and lower sides of the threaded cylinder 205 are provided with a slide groove 206, the inner wall of the slide groove 206 contacts the surface of the limiting column 3, through the cooperation of the limiting column 3 and the slide groove 206, the threaded cylinder 205 cannot rotate in the hollow main rod 1, the surface of the threaded cylinder 205 contacts the inner wall of the elliptical ring 7, and the threaded cylinder 205 is away from the cylinder 20 2 is fixedly connected to the surface of the elliptical plate 4, the surface of the first screw rod 203 and the surface of the second screw rod 204 are both in contact with the inner wall of the elliptical plate 4, the center of the elliptical plate 4 and the axis of the threaded barrel 205 are on the same horizontal line, the short axis length of the elliptical plate 4 is equal to the outer diameter length of the threaded barrel 205, the front side of the first screw rod 203 and the front side of the second screw rod 204 are both provided with a first cross groove 207, through which the user can use a screwdriver to rotate the first screw rod 203 and the second screw rod 204, the centers of the first screw rod 203, the second screw rod 204 and the first cross groove 207 are all on the same horizontal line, the thread direction of the first screw rod 203 is opposite to the thread direction of the second screw rod 204, when the first screw rod 203 and the second screw rod 204 rotate, through the cooperation of the first screw rod 203, the second screw rod 204 and the threaded barrel 205, the distance between the elliptical plate 4 and the hollow main rod 1 changes.

[0029] Embodiment 2:

[0030] Reference Figure 1-8 A thread groove 9 is provided on the upper surface of the first screw 203 and the upper surface of the second screw 204. A third screw 10 is threadedly connected to the inner wall of the thread groove 9. A second cross groove 11 is provided on the upper surface of the third screw 10. The surface of the third screw 10 contacts the surface of the elliptical plate 4. The thread groove 9, the third screw 10 and the second cross groove 11 are provided. When the third screw 10 is screwed into the thread groove 9, the third screw 10 is fixed in the thread groove 9 through the thread. The third screw 10 can prevent the distance between the elliptical plate 4 and the hollow main rod 1 from changing, so that the side connecting rod 5 and the hollow main rod 1 are not easy to loosen. At the same time, the second cross groove 11 allows the user to rotate the third screw 10 with a screwdriver.

[0031] In the utility model, when assembling the connecting rod, the user first inserts a screwdriver into the first cross groove 207, and rotates the first screw rod 203 and the second screw rod 204 by the screwdriver. Then, the distance between the elliptical plate 4 and the hollow main rod 1 is increased by the cooperation of the first screw rod 203, the second screw rod 204 and the threaded barrel 205. When the distance between the elliptical plate 4 and the strip is greater than the thickness of the side connecting rod 5, the rotation of the first screw rod 203 and the second screw rod 204 is stopped. Then, the elliptical ring 7 on the side connecting rod 5 passes through the elliptical plate 4, and the positioning groove 8 contacts the limiting column 3 by rotating the side connecting rod 5. Then, the distance between the elliptical plate 4 and the hollow main rod 1 is increased by the cooperation of the first screw rod 203, the second screw rod 204 and the threaded barrel 20 5, and gradually decreases with the cooperation of the elliptical plate 4 and the hollow main rod 1. When the elliptical plate 4 and the hollow main rod 1 clamp the side connecting rod 5, the side connecting rod 5 can be fixed on the hollow main rod 1 through the cooperation of the elliptical plate 4, the elliptical ring 7, the positioning groove 8 and the limiting column 3. When the connecting rod needs to be disassembled, the distance between the elliptical plate 4 and the hollow main rod 1 is gradually increased by rotating the first screw 203 and the second screw 204 with the cooperation of the first screw 203, the second screw 204 and the threaded cylinder 205. When the distance between the elliptical plate 4 and the bar is greater than the thickness of the side connecting rod 5, stop rotating the first screw 203 and the second screw 204, and then separate the positioning groove 8 from the limiting column 3, and align the elliptical plate 4 with the elliptical ring 7 by rotating the side connecting rod 5, and then, remove the side connecting rod 5 from the telescopic bracket 2 by translating the side connecting rod 5.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] 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.

Claims

1. A connecting rod for an electric transport vehicle, comprising a hollow main rod (1), It is characterized in that The inner wall of the hollow main rod (1) is fixedly connected with a telescopic bracket (2), and the upper and lower sides of the inner wall of the hollow main rod (1) are fixedly connected with a limit column (3), and the surface of the limit column (3) contacts the inner wall of the telescopic bracket (2). The surface of the telescopic bracket (2) is fixedly connected with an elliptical plate (4), and the surface of the elliptical plate (4) and the front and rear ends of the hollow main rod (1) are both fitted with side connecting rods (5), and an elliptical hole (6) is provided inside the side connecting rod (5), and the inner wall of the elliptical hole (6) is fixedly connected with an elliptical ring (7), and the inner wall of the elliptical ring (7) contacts the surface of the telescopic bracket (2). The upper and lower sides of the inner wall of the elliptical ring (7) are provided with positioning grooves (8), and the inner wall of the positioning groove (8) contacts the surface of the limit column (3).

2. A connecting rod for an electric transport vehicle according to claim 1, It is characterized in that The telescopic bracket (2) comprises a bearing (201), the surface of the bearing (201) is fixedly connected to the inner wall of the hollow main rod (1), the inner wall of the bearing (201) is fixedly connected to a cylinder (202), the inner wall of the cylinder (202) is fixedly connected to a first screw rod (203), the back side of the first screw rod (203) and the inner wall of the cylinder (202) are both fixedly connected to a second screw rod (204), the surface of the first screw rod (203) and the surface of the second screw rod (204) are both threadedly connected to a threaded cylinder (205), the threaded cylinder (20 5) are provided with a slide groove (206) on both the upper and lower sides, the inner wall of the slide groove (206) is in contact with the surface of the limiting column (3), the surface of the threaded barrel (205) is in contact with the inner wall of the elliptical ring (7), the end of the threaded barrel (205) away from the cylinder (202) is fixedly connected to the surface of the elliptical plate (4), the surface of the first screw rod (203) and the surface of the second screw rod (204) are in contact with the inner wall of the elliptical plate (4), and the front side of the first screw rod (203) and the front side of the second screw rod (204) are provided with a first cross groove (207).

3. A connecting rod for an electric transport vehicle according to claim 2, It is characterized in that The shape of the inner wall of the elliptical ring (7) is equal to that of the elliptical plate (4), the center of the elliptical plate (4) and the axis of the threaded barrel (205) are on the same horizontal line, and the minor axis length of the elliptical plate (4) is equal to the outer diameter length of the threaded barrel (205).

4. A connecting rod for an electric transport vehicle according to claim 2, It is characterized in that The centers of the first screw rod (203), the second screw rod (204) and the first cross groove (207) are all on the same horizontal line, and the thread direction of the first screw rod (203) is opposite to the thread direction of the second screw rod (204).

5. A connecting rod for an electric transport vehicle according to claim 2, It is characterized in that The upper surface of the first screw rod (203) and the upper surface of the second screw rod (204) are both provided with a thread groove (9), the inner wall of the thread groove (9) is threadedly connected to a third screw rod (10), the upper surface of the third screw rod (10) is provided with a second cross groove (11), and the surface of the third screw rod (10) is in contact with the surface of the elliptical plate (4).

6. A connecting rod for an electric transport vehicle according to claim 1, It is characterized in that A first connection hole (12) is provided inside the side connecting rod (5), and a second connection hole (13) is provided inside the side connecting rod (5).

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