CN217554087U - Sprocket wheel torque sensor of electric power-assisted bicycle - Google Patents

Abstract

The utility model discloses an electric power bicycle sprocket torque sensor, including mount pad, a protection section of thick bamboo and torque sensor body, a protection section of thick bamboo movable mounting in the top of mount pad, be provided with fixed subassembly on the mount pad, fixed subassembly includes the fixed plate of fixed connection mount pad top both sides, two the inside sliding connection of fixed plate has the horizontal pole, two the equal fixedly connected with joint piece of one end that the horizontal pole is close to each other. The utility model discloses a set up a protection section of thick bamboo, be convenient for protect the torque sensor body, through setting up the closing plate, have a large amount of dusts to attach on the torque sensor body when avoiding traveling, influence its life to through setting up joint piece and protection section of thick bamboo joint, be convenient for fix the torque sensor body on the mount pad, easy dismounting can realize torque sensor quick assembly disassembly, the convenience when having strengthened the installation of torque sensor body.

Description

Sprocket wheel torque sensor of electric power-assisted bicycle

Technical Field

The utility model relates to a bicycle technical field especially relates to electric bicycle sprocket torque sensor.

Background

The torque sensor is the core of understanding rider's intention of the bicycle electric power assisting system. The high-end electric power-assisted bicycles all use the most technological content of 'bilateral torque sensors'. Compared with the lagging 'rear axle hook sensor', the bilateral torque sensor has obvious advantages, is mainly installed between the crank and the chain wheel, namely the outer side of the five-way joint, and some are directly installed on the middle axle. There is no absolute rigid body in the world, so the middle shaft will generate very fine torsion deformation when stressed, the magnitude of the current treading moment can be obtained by measuring the fine deformation signal of the middle shaft surface, and the precision is very high. The torque sensor is also referred to as a "torque sensor" because the torque is measured by the torque force.

Current torque sensor all is the welding or passes through nut fixed mounting in the outside of five-way, so when needs overhaul torque sensor, then invariably dismantle it to electric bicycle can jolt at the in-process of traveling, can influence the fixed stability of torque sensor like this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a sprocket torque sensor of an electric power-assisted bicycle.

In order to achieve the above purpose, the utility model adopts the following technical scheme: electric bicycle sprocket torque sensor, including mount pad, a protection section of thick bamboo and torque sensor body, a protection section of thick bamboo movable mounting in the top of mount pad, be provided with fixed subassembly on the mount pad, fixed subassembly includes the fixed plate of fixed connection mount pad top both sides, two the inside sliding connection of fixed plate has the horizontal pole, two the equal fixedly connected with joint piece of one end that the horizontal pole is close to each other, two the spring has all been cup jointed to the surface of horizontal pole, two the equal fixedly connected with arm-tie of one end that the horizontal pole was kept away from each other, be provided with protection component on the protection section of thick bamboo, protection component includes sliding connection two inside supporting rods of a protection section of thick bamboo, two the equal fixedly connected with fixed ball of one end of supporting rod, two the same closing plate of other end fixedly connected with of supporting rod, the inside of a protection section of thick bamboo just is located two the equal fixedly connected with elasticity telescopic link in both sides of supporting rod, four the elasticity telescopic link is close to the equal fixedly connected with arc piece of one end of two supporting rods respectively.

As a further description of the above technical solution: the outer surfaces of the two clamping blocks are respectively in sliding connection with two side walls of the protective barrel, and the arc blocks located on two sides of the same clamping rod are respectively in movable connection with the outer side wall of the clamping rod.

As a further description of the above technical solution: the arc blocks positioned on two sides of the same clamping rod are respectively movably connected with the outer side wall of the fixed ball, and the sealing plate is movably connected with one side of the protective cylinder.

As a further description of the above technical solution: the inside of a protection section of thick bamboo is provided with the centre gripping subassembly, the centre gripping subassembly includes the electric telescopic handle of fixed connection in a protection section of thick bamboo inner wall both sides.

As a further description of the above technical solution: two the equal fixedly connected with grip block of one end that electric telescopic handle is close to each other, two the grip block all sets V style of calligraphy two one side that the grip block is close to each other all is provided with a plurality of butt joint poles.

As a further description of the above technical solution: one end of the torque sensor body extends to the outside of the protective cylinder and is movably connected with a sprocket piece.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this electric power bicycle sprocket torque sensor, through setting up a protection section of thick bamboo, be convenient for protect the torque sensor body, through setting up the closing plate, it attaches on the torque sensor body to have a large amount of dusts when avoiding traveling, influence its life, and through setting up joint piece and a protection section of thick bamboo joint, be convenient for fix the torque sensor body on the mount pad, easy dismounting, can realize torque sensor quick assembly disassembly, and can carry out repetitious usage many times, the convenience when having strengthened the installation of torque sensor body.

2. Compared with the prior art, this electric power bicycle sprocket torque sensor through setting up two grip blocks, is convenient for fix the torque sensor body in the inside of a protection section of thick bamboo, and when receiving external impact, a protection section of thick bamboo can protect the torque sensor body, also conveniently changes the outside protection section of thick bamboo of torque sensor body.

Drawings

Fig. 1 is a longitudinal sectional front view of the whole internal structure of the sprocket torque sensor of the electric power-assisted bicycle according to the present invention;

FIG. 2 is a side view of the connection between the protective cylinder and the torque sensor in the sprocket torque sensor of the electric power-assisted bicycle of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is an enlarged view of fig. 2 at B.

Illustration of the drawings:

1. a mounting seat; 2. a protective cylinder; 3. a fixing plate; 4. a cross bar; 5. a clamping block; 6. a spring; 7. pulling a plate; 8. a clamping rod; 9. fixing the ball; 10. a sealing plate; 11. an elastic telescopic rod; 12. an arc-shaped block; 13. an electric telescopic rod; 14. a clamping plate; 15. a butting rod; 16. a sprocket member; 17. a torque sensor body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides an electric bicycle sprocket torque sensor: the device comprises an installation seat 1, a protection cylinder 2 and a torque sensor body 17, wherein the axle radius of the protection cylinder 2 is required to be larger than that of the torque sensor body 17, the torque sensor body 17 is an existing device, one end of the torque sensor body 17 extends to the outside of the protection cylinder 2 and is movably connected with a sprocket member 16, the protection cylinder 2 is movably installed at the top of the installation seat 1, a fixing component is arranged on the installation seat 1 and comprises fixing plates 3 fixedly connected with two sides of the top of the installation seat 1, the fixing plates 3 are symmetrically arranged at two sides of the protection cylinder 2, cross rods 4 are slidably connected inside the two fixing plates 3, grooves for sliding the cross rods 4 are formed in the fixing plates 3, clamping blocks 5 are fixedly connected with one ends, close to each other, of the two cross rods 4, the outer surfaces of the two clamping blocks 5 are respectively slidably connected with two side walls of the protection cylinder 2, springs 6 are sleeved on the outer surfaces of the two cross rods 4, the spring 6 is arranged between the fixed plate 3 and the clamping block 5, one end of the two cross rods 4 which are far away from each other is fixedly connected with the pulling plate 7, the pulling plate 7 is arranged, the cross rods 4 are convenient to move, a groove matched with the pulling plate 7 is arranged on the fixed plate 3, the protective barrel 2 is provided with a protective assembly, the protective assembly comprises two clamping rods 8 which are slidably connected inside the protective barrel 2, one end of each clamping rod 8 is fixedly connected with a fixed ball 9, a groove for driving the fixed ball 9 to move by the clamping rods 8 is arranged inside the protective barrel 2, the other end of each clamping rod 8 is fixedly connected with the same sealing plate 10, the sealing plate 10 is movably connected with one side of the protective barrel 2, elastic telescopic rods 11 are fixedly connected inside the protective barrel 2 and positioned at two sides of the two clamping rods 8, and arc-shaped blocks 12 are fixedly connected at one ends of the four elastic telescopic rods 11 which are respectively close to the two clamping rods 8, the arc blocks 12 located on two sides of the same clamping rod 8 are respectively movably connected with the outer side wall of the fixed ball 9, the arc blocks 12 located on two sides of the same clamping rod 8 are respectively movably connected with the outer side wall of the clamping rod 8, one side, close to each other, of the two arc blocks 12 is respectively abutted against two sides, opposite to the clamping rod 8, of the two arc blocks, and the side faces of the arc blocks 12 are abutted against two ends, on one side of the fixed ball 9.

The inside of a protection section of thick bamboo 2 is provided with the centre gripping subassembly, the centre gripping subassembly includes electric telescopic handle 13 of fixed connection in 2 inner wall both sides of a protection section of thick bamboo, external power source and control switch are connected to electric telescopic handle 13, still keep the extended state after electric telescopic handle 13 cuts off the power supply, the equal fixedly connected with grip block 14 of one end that two electric telescopic handle 13 are close to each other, two grip blocks 14 all set the V style of calligraphy to, grip block 14 can be with torque sensor body 17 butt between two grip blocks 14, one side that two grip blocks 14 are close to each other all is provided with a plurality of butt poles 15, set up the frictional force that butt pole 15 increases grip block 14 and torque sensor body 17 surface, avoid torque sensor body 17 to take place to remove.

The working principle is as follows:

before needing to dismantle the torque sensor body 17, it is first dismantled to need to protect a section of thick bamboo 2 on mount pad 1, can stimulate arm-tie 7 on the fixed plate 3 of mount pad 1 both sides earlier, make two arm-tie 7 opposite direction motions and keep away from each other, two arm-tie 7 remove to make two joint piece 5 remove and the both sides separation of a protection section of thick bamboo 2 through horizontal pole 4, stimulate a protection section of thick bamboo 2 to the one side of keeping away from sprocket spare 16 this moment, make a protection section of thick bamboo 2 break away from mount pad 1, a protection section of thick bamboo 2 and mount pad 1 separation make, the torque sensor body 17 of a protection section of thick bamboo 2 inside will separate with sprocket 16, stimulate the closing plate 10 of a protection section of thick bamboo 2 one side this moment, closing plate 10 removes to provide certain pulling force for fixed ball 9 through clamping bar 8, fixed ball 9 will be the arc 12 of both sides this moment, make two arc 12 keep away from each other, until fixed ball 9 breaks away from a protection section of thick bamboo 2 and can, start the electric telescopic link 13 inside of a protection section of thick bamboo 2 this moment, two electric opposite direction 13 movements and keep away from each other, two electric torque sensor bodies 14 can not dismantle the telescopic link 14 until the torque sensor body 17 and do not accomplish.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides an electric bicycle sprocket torque sensor, includes mount pad (1), a protection section of thick bamboo (2) and torque sensor body (17), its characterized in that: the protection device is characterized in that the protection barrel (2) is movably installed at the top of the installation seat (1), a fixing assembly is arranged on the installation seat (1), the fixing assembly comprises fixing plates (3) and two fixed connection installation seats (1) and two top two sides of the fixing plates (3), a transverse rod (4) is slidably connected inside the fixing plates (3) and two equal fixedly connected with clamping blocks (5) and two ends of the transverse rod (4) are close to each other, a spring (6) and two springs are sleeved on the outer surface of the transverse rod (4), two equal fixedly connected with pulling plates (7) and two ends of the transverse rod (4) are far away from each other, a protection assembly is arranged on the protection barrel (2), the protection assembly comprises two clamping rods (8) and two clamping rods (8) which are slidably connected inside the protection barrel (2), two equal fixedly connected with fixing balls (9) and two ends of the clamping rods (8) and one sealing plate (10), the protection barrel (2) is internally and is located two elastic telescopic rods (11) and two arc-shaped telescopic rods (8) are fixedly connected with one end fixing blocks (12) and two arc-shaped telescopic rods (8) respectively close to the clamping rods (11).

2. The electric bicycle sprocket torque sensor of claim 1, wherein: the outer surfaces of the two clamping blocks (5) are respectively in sliding connection with two side walls of the protective barrel (2), and the arc blocks (12) located on two sides of the same clamping rod (8) are respectively in movable connection with the outer side wall of the clamping rod (8).

3. The electric bicycle sprocket torque sensor of claim 1, wherein: the arc blocks (12) positioned on two sides of the same clamping rod (8) are movably connected with the outer side wall of the fixed ball (9) respectively, and the sealing plate (10) is movably connected with one side of the protective barrel (2).

4. The electric power assisted bicycle sprocket torque sensor of claim 1, wherein: the inside of a protection section of thick bamboo (2) is provided with the centre gripping subassembly, the centre gripping subassembly includes electric telescopic handle (13) of fixed connection in a protection section of thick bamboo (2) inner wall both sides.

5. The electric bicycle sprocket torque sensor of claim 4, wherein: two the equal fixedly connected with grip block (14) of one end that electric telescopic handle (13) are close to each other, two grip block (14) all set to two of V style of calligraphy one side that grip block (14) are close to each other all is provided with a plurality of butt joint poles (15).

6. The electric bicycle sprocket torque sensor of claim 1, wherein: one end of the torque sensor body (17) extends to the outside of the protective cylinder (2) and is movably connected with a chain wheel piece (16).

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