Spring base device

Abstract

A spring base device relates to the field of electric vehicle production and comprises a rotating rod mechanism and a torsion spring mechanism, the torsion spring mechanism is sleeved on the rotating rod mechanism, and the torsion spring mechanism is used for providing torsion for two force application rods. The rotating rod mechanism comprises a rotating rod, a rotating rod sleeve and a locking nut, the rotating rod sleeve is arranged on the rotating rod in a sleeving mode, and the locking nut is screwed at the tail end of the rotating rod in a threaded mode; the torsional spring mechanism comprises a torsional spring, two force bearing arms and a torsional spring protective sleeve, the torsional spring is arranged on the rotating rod in a sleeving mode, the two force bearing arms are connected with the two ends of the torsional spring respectively, and the torsional spring protective sleeve is arranged outside the torsional spring in a sleeving mode. According to the spring base device, the rotating rod sleeve is arranged on the rotating rod, so that the torsional spring and the force application rod cannot be in direct contact with the rotating rod in the rotating process, and abrasion of the rotating rod is reduced; the torsion spring is sleeved with the torsion spring protection sleeve, external objects are prevented from being twisted into the torsion spring in the rotation process of the torsion spring, the torsion effect of the torsion spring is guaranteed, and the torsion spring is safer in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle production technical field especially spring base device. BACKGROUND

[0002] The electric tricycle is a kind of three-wheeled transport vehicle driven by electricity. It is composed of frame, car, three wheels, motor, battery and control system. The motor is powered by battery to provide power for the vehicle, and it is easy to operate, and the driving direction can be controlled by rotating the handlebar. Because of its economic and convenient, flexible and convenient advantages, it is widely used in cities and villages. In the city, it is often used for express delivery and short-distance cargo transportation. In the countryside, it can help farmers transport agricultural products and agricultural materials. In addition, it does not need fuel, is energy-saving and environment-friendly, and the maintenance cost is relatively low, which is an ideal choice to meet the daily short-distance transportation needs.

[0003] Many places of agricultural electric tricycle compartment opening and closing need to add spring base, but the spring base of the prior art is mostly torsional spring which is sleeved on screw rod (principle similar to spring hinge), and the rotation of force bar is prone to wear on screw rod, and in addition, the torsional spring is prone to twist the objects in the vehicle during rotation, thereby affecting the use effect of torsional spring hinge. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art.

[0005] To achieve the above purpose, the utility model provides a spring base device, including the lever mechanism and torsional spring mechanism, wherein, the torsional spring mechanism is sleeved on the lever mechanism, the torsional spring mechanism is used for providing torsion to two force bars, the lever mechanism includes lever, lever sleeve and lock nut, wherein, the lever sleeve is sleeved on the lever, the lock nut is screwed on the end of lever, the torsional spring mechanism includes torsional spring, force arm and torsional spring protection sleeve, wherein, the torsional spring is sleeved on the lever, the force arm is provided with two and is connected with the both ends of torsional spring respectively, the torsional spring protection sleeve is sleeved on the outside of torsional spring.

[0006] Further, the torsional spring protection sleeve is a silica gel bellows, the both ends of the torsional spring protection sleeve are provided with end cover, the end cover is provided with force arm clamping groove.

[0007] Further, the end of the force arm away from the torsional spring is provided with end sleeve, the end sleeve is sleeved on the lever sleeve, the end of the force arm close to the torsional spring is provided with rubber pad, and the rubber pad is sleeved on the lever sleeve.

[0008] Further, the force arm is C-shaped structure, and the force arm is provided with buffer sleeve.

[0009] Further, one end of the rotating rod is provided with a rotating rod cap, and the other end of the rotating rod is provided with a threaded head, the threaded head and a locking nut are matched with each other, and a limiting step is arranged between the rotating rod and the threaded head.

[0010] Further, a positioning hole is arranged on the threaded head and the nut, and a positioning pin is arranged in the positioning hole.

[0011] Beneficial effects: the rotating rod sleeve, the torsional spring and the force applying rod are not directly contacted in the rotating process, so that the abrasion of the rotating rod is reduced; the torsional spring protection sleeve is arranged outside the torsional spring, so that external objects are prevented from being twisted into the torsional spring in the rotating process of the torsional spring, the torsional force effect of the torsional spring is ensured, and the use is safer.

[0012] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0014] Figure 1 It is a structural schematic view of the spring base device according to one embodiment of the present application;

[0015] Figure 2 It is a partial structural schematic view of the spring base device according to one embodiment of the present application;

[0016] Figure 3 It is a front view sectional view of the spring base device according to one embodiment of the present application;

[0017] Figure 4 It is a use principle view of the spring base device according to one embodiment of the present application.

[0018] As shown in the drawings: 1, rotating rod mechanism; 11, rotating rod cap; 12, rotating rod sleeve; 13, threaded head; 14, locking nut; 15, positioning pin; 16, positioning hole; 17, rotating rod; 18, limiting step; 2, torsional spring mechanism; 21, end sleeve; 22, force arm; 221, buffer sleeve; 23, rubber pad; 24, torsional spring protection sleeve; 241, end cover; 242, force arm clamping groove; 25, torsional spring; 3, force applying rod. DETAILED DESCRIPTION

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] The spring base device of this utility model embodiment will now be described with reference to the accompanying drawings.

[0021] like Figures 1-4 As shown, the spring base device provided in this embodiment of the present invention includes a rotating rod mechanism 1 and a torsion spring mechanism 2, wherein the torsion spring mechanism 2 is sleeved on the rotating rod mechanism 1 and is used to provide torque to the two force-applying rods 3.

[0022] The rotating rod mechanism 1 includes a rotating rod 17, a rotating rod sleeve 12, and a locking nut 14, wherein the rotating rod sleeve 12 is sleeved on the rotating rod 17, and the locking nut 14 is threaded onto the end of the rotating rod 17.

[0023] The torsion spring mechanism 2 includes a torsion spring 25, a load-bearing arm 22, and a torsion spring protective sleeve 24. The torsion spring 25 is sleeved on the rotating rod 17. There are two load-bearing arms 22, which are respectively connected to the two ends of the torsion spring 25. The torsion spring protective sleeve 24 is sleeved on the outside of the torsion spring 25.

[0024] Specifically, when installing the spring base device of this application, it is combined with... Figure 4 As shown, two force-applying rods 3 (it should be noted that force-applying rods 3 can be understood as components that require elastic rotational connection) are directly inserted into the inside of the load-bearing arm 22.

[0025] If it is inconvenient to insert the force-applying rod 3 into the load-bearing arm 22, the rotating rod 17 and the rotating rod sleeve 12 can be removed from the torsion spring 25. At this time, a notch is formed above the load-bearing arm 22, and the force-applying rod 3 can be inserted into the inner side of the C-shaped load-bearing arm 22. Then the rotating rod sleeve 12 is reinserted into the torsion spring 25, and the load-bearing arm 22 holds the force-applying rod 3 tightly.

[0026] During use, because the rotating rod 17 is equipped with a rotating rod sleeve 12, when the two force-applying rods 3 are twisted, the torsion spring 25 and the force-applying rods 3 will not directly contact the rotating rod 17 during rotation, reducing wear on the rotating rod 17. In addition, by wearing a torsion spring protective sleeve 24 on the outside of the torsion spring 25, external objects are prevented from getting caught in the torsion spring 25 during rotation, ensuring the torsion effect of the torsion spring 25 and making it safer to use.

[0027] In one embodiment of this utility model, such as Figure 2 , Figure 3As shown, the torsional spring protection sleeve 24 is provided as a silica gel bellows, and the two ends of the torsional spring protection sleeve 24 are provided with end covers 241, the end covers 241 at the two ends of the torsional spring protection sleeve 24 wrap the two ends of the torsional spring 25, preventing the torsional spring protection sleeve 24 from being separated from the torsional spring 25. The end cover 241 is provided with a force arm clamping groove 242 for the two force arms 22 to extend out of the torsional spring protection sleeve 24.

[0028] Specifically, the torsional spring protection sleeve 24 of the silica gel material and the bellows structure provides an elastic and stretchable property, can tightly wrap the torsional spring 25 therein, and can also rotate with the torsional spring 25 to protect the torsional spring 25 in all directions.

[0029] In an embodiment of the utility model, as shown in Figure 2 , Figure 3 , Figure 4 As shown, the end cover 241 is provided with a force arm clamping groove 242 for the two force arms 22 to extend out of the torsional spring protection sleeve 24.

[0030] Specifically, the end cover 21 is used to support the two ends of the C-shaped force arm 22. As shown in Figure 4 When the side of the force rod 3 is close to the torsional spring 25, the rubber pad 23 on the rotating rod sleeve 12 can provide a side wall buffer support for the force rod 3, preventing friction between the torsional spring 25 and the force rod 3 when the torsional spring 25 is twisted. Reduce the friction on the side wall of the force rod 3.

[0031] In an embodiment of the utility model, as shown in Figure 2 , Figure 3 , Figure 4 As shown, one end of the rotating rod 17 is provided with a rotating rod cap 11, the other end of the rotating rod 17 is provided with a threaded head 13, the threaded head 13 and the lock nut 14 are matched with each other, and the rotating rod 17 and the threaded head 13 are provided with a limiting step 18. The threaded head 13 and the nut are both provided with a positioning hole 16, and the positioning hole 16 is provided with a positioning pin 15.

[0032] Specifically, after the lock nut 14 and the threaded head 13 are tightened, the lock nut 14 is tightly attached to the limiting step 18, and then the positioning pin 15 is inserted into the positioning hole 16 on the threaded head 13 and the nut, preventing the threaded head 13 and the nut from being loosened. Since the lock nut 14 stops at the limiting step 18, at this time the rotating rod sleeve 12 has a moving space, by smearing some lubricating grease on the inside of the rotating rod sleeve 12, the free rotation of the torsional spring 25 and the force rod 3 is facilitated, and the torsional spring 25 and the force rod 3 do not directly contact the rotating rod 17 during rotation, reducing the wear of the rotating rod 17.

[0033] In order to clearly illustrate the above-mentioned embodiments, reference is made to the following description taken in conjunction with the accompanying drawings. Figures 1-4 The spring base device of the present application works as follows: when the spring base device is installed, two force rods 3 are directly inserted into the inside of the force arm 22, as shown in the figure. Figure 4 If the force rod 3 is not convenient to insert into the force arm 22, the force rod 3 can be clamped into the inside of the C-shaped force arm 22 by taking out the torsion spring 25 and the rotating rod 17 and the rotating rod sleeve 12, and then the rotating rod sleeve 12 is reinserted into the torsion spring 25.

[0034] After the locking nut 14 is tightened with the threaded head 13, the locking nut 14 is tightly attached to the limiting step 18, and then the positioning pin 15 is inserted into the positioning hole 16 on the threaded head 13 and the nut to prevent the threaded head 13 and the nut from being loosened.

[0035] In addition, the torsion spring protection sleeve 24 is sleeved outside the torsion spring 25 to prevent external objects from being twisted into the inside of the torsion spring 25 during the rotation of the torsion spring 25, ensure the torsion effect of the torsion spring 25, and make the use process safer.

[0036] In summary, the spring base device of the present application has the following advantages: the rotating rod sleeve 12 is arranged on the rotating rod 17, so that the torsion spring 25 and the force rod 3 do not directly contact the rotating rod 17 during rotation, reducing the wear of the rotating rod 17; the torsion spring protection sleeve 24 is sleeved outside the torsion spring 25 to prevent external objects from being twisted into the inside of the torsion spring 25 during the rotation of the torsion spring 25, ensuring the torsion effect of the torsion spring 25, and making the use process safer.

[0037] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and deformations to the above-mentioned embodiments within the scope of the present application.

Claims

1. A spring seat device, characterized by Including a rotating rod mechanism (1) and a torsion spring mechanism (2), wherein the torsion spring mechanism (2) is sleeved on the rotating rod mechanism (1), and the torsion spring mechanism (2) is used for providing torsion to two force applying rods (3); The rotating rod mechanism (1) comprises a rotating rod (17), a rotating rod sleeve (12) and a locking nut (14), wherein the rotating rod sleeve (12) is sleeved on the rotating rod (17), and the locking nut (14) is screwed on the end of the rotating rod (17); The torsion spring mechanism (2) comprises a torsion spring (25), a force bearing arm (22) and a torsion spring protection sleeve (24), wherein the torsion spring (25) is sleeved on the rotating rod (17), the force bearing arm (22) is provided with two ends connected with the torsion spring (25), and the torsion spring protection sleeve (24) is sleeved outside the torsion spring (25).

2. The spring pedestal device of claim 1, wherein, The torsion spring protection sleeve (24) is a silica gel bellows, and the two ends of the torsion spring protection sleeve (24) are provided with end covers (241), and the end covers (241) are provided with force bearing arm clamping grooves (242).

3. The spring pedestal device of claim 1, wherein, The end of the force bearing arm (22) away from the torsion spring (25) is provided with an end sleeve (21), the end sleeve (21) is sleeved on the rotating rod sleeve (12), and the end of the force bearing arm (22) close to the torsion spring (25) is provided with a rubber pad (23), and the rubber pad (23) is sleeved on the rotating rod sleeve (12).

4. The spring seat apparatus of claim 3, wherein, The force bearing arm (22) is a C-shaped structure, and the force bearing arm (22) is provided with a buffer sleeve (221).

5. The spring pedestal device of claim 1, wherein, One end of the rotating rod (17) is provided with a rotating rod cap (11), the other end of the rotating rod (17) is provided with a threaded head (13), the threaded head (13) and the locking nut (14) are matched with each other, and a limiting step (18) is arranged between the rotating rod (17) and the threaded head (13).

6. The spring seat apparatus of claim 5, wherein, The threaded head (13) and the nut are both provided with a positioning hole (16), and the positioning hole (16) is provided with a positioning pin (15) inside.

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