CN214667192U

CN214667192U - Weighing sensor of piezoelectric type vehicle

Info

Publication number: CN214667192U
Application number: CN202120972949.3U
Authority: CN
Inventors: 曹裕辉
Original assignee: Xiamen Bibeng Technology Co ltd
Current assignee: Xiamen Bibeng Technology Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-11-09
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a weighing sensor of piezoelectric type vehicle, including the bottom base, the top of bottom base is provided with two wheel platforms, and two wheel platform parallel arrangement, the top of bottom base just is located and is provided with the detection structure between two wheel platforms, the top of detecting the structure is provided with the cushion chamber, the top of bottom base just is located the outside fixedly connected with protection platform of two wheel platforms. The utility model discloses, through being provided with wheel platform, cushion chamber and detection structure, restrict the position that the vehicle detected through the wheel platform, the tire of vehicle stops on the wheel platform, presses the transmission structure, and the guide pulley of connecting bottom the cushion chamber is being pushed up to the other end of transmission structure, plays the effect of alleviating the impact, increases the life of the sensing element of weighing.

Description

Weighing sensor of piezoelectric type vehicle

Technical Field

The utility model relates to a technical field that weighs of piezoelectric type vehicle especially relates to a weighing sensor of piezoelectric type vehicle.

Background

The weighing sensor of the piezoelectric vehicle is a sensor based on the piezoelectric effect, and electric charges are generated on the surface of a piezoelectric material after the piezoelectric material is stressed. The charge is amplified by the charge amplifier and the measuring circuit and transformed into impedance, and then the electric quantity proportional to the external force is output.

The applicant finds that Chinese patent discloses 'a piezoelectric type vehicle dynamic weighing sensor' through retrieval when applying the invention, the application number is '201610173318.9', the patent mainly uses FPC, and places the FPC welded with the weighing sensitive element in a groove, so that the weighing sensitive element is stressed more uniformly and is not easy to damage, the manufacturing process is greatly simplified, but most of the force is impact force to the sensor, the utility model discloses optimize the detection structure and set up the buffer cavity to effectively protect the weighing sensitive element, and the service life of the use is prolonged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the weighing sensor of a piezoelectric type vehicle that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a weighing sensor of piezoelectric type vehicle, includes the bottom base, the top of bottom base is provided with two wheel platforms, and two wheel platform parallel arrangement, the top of bottom base just is located and is provided with the detection structure between two wheel platforms, the top of detecting the structure is provided with the cushion chamber, the top of bottom base just is located the outside fixedly connected with protection platform of two wheel platforms.

As a further description of the above technical solution:

the detection structure comprises a transmission structure, one end of the transmission structure supports the wheel platform, and the other end of the transmission structure is provided with a weighing sensing element.

As a further description of the above technical solution:

the transmission structure further comprises a group of rotary drums, the side surfaces of the rotary drums are fixedly connected with long arms, one ends of the long arms, far away from the rotary drums, are fixedly connected with supporting blocks, and the supporting blocks are located right below the wheel platforms;

the side of the rotating drum and the long arm form an included angle of 90-110 degrees and are fixedly connected with a short arm, and the weighing sensing element is positioned on the inner side of the short arm.

As a further description of the above technical solution:

and a limiting structure is arranged between the bottom of the wheel platform and the bottom base.

As a further description of the above technical solution:

the limiting structure comprises an inserting rod and a socket, the inserting rod is fixedly connected to the bottom of the wheel platform, the socket is fixedly connected to the inner bottom of the bottom base, and the inserting rod is located right above the socket.

As a further description of the above technical solution:

the buffer cavity comprises a cavity body, a piston is arranged in the cavity body, a transmission rod is fixedly connected to the bottom end of the piston, a guide wheel is fixedly connected to the bottom end of the transmission rod, and the guide wheel is located at the top end of the short arm.

As a further description of the above technical solution:

the side of the cavity is provided with a plurality of one-way air inlets and an air outlet.

As a further description of the above technical solution:

the side face of the guide wheel is fixedly connected with a side plate, a spring is arranged at the top of the side plate, and the top end of the spring abuts against the bottom face of the cavity.

As a further description of the above technical solution:

and a detection shell is arranged on the outer side of the detection structure.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this weighing sensor of piezoelectric type vehicle through being provided with wheel platform, cushion chamber and detection structure, restricts the position that the vehicle detected through the wheel platform, and the tire of vehicle stops on the wheel platform, presses the transmission structure, and the guide pulley of connecting bottom the cushion chamber is being pushed against to the other end of transmission structure, plays the effect of alleviating the impact, increases weighing sensing element's life.

2. Compared with the prior art, the weighing sensor of the piezoelectric type vehicle has the advantages that the transmission structure is arranged, the long arm and the short arm (forming a lever structure) are utilized to increase the force, and the weighing sensing element is enabled to detect more accurately.

3. Compared with the prior art, this weighing sensor of piezoelectric type vehicle through being provided with cushion chamber and guide pulley structure, the guide pulley setting is at the top of forearm, and the cavity is inside to be provided with a plurality of one-way air inlets and a gas outlet, and in the time of the atress, it is slower to give vent to anger, plays the effect of buffering, admits air relatively fast return that can be quick, the curb plate that sets up moreover and the response return that spring structure can be quick.

Drawings

Fig. 1 is a schematic perspective view of a weighing sensor of a piezoelectric vehicle according to the present invention;

fig. 2 is a schematic front structural view of a weighing sensor of a piezoelectric vehicle according to the present invention;

fig. 3 is a schematic top view of a weighing sensor of a piezoelectric vehicle according to the present invention;

fig. 4 is a schematic side view of the weighing sensor of the piezoelectric vehicle according to the present invention.

Illustration of the drawings:

1. a bottom base; 2. a wheel table; 3. a buffer chamber; 4. detecting the shell; 5. a protection table; 6. a limiting structure; 7. a transmission structure; 701. a long arm; 702. a short arm; 703. a support block; 704. a weighing sensor element; 8. a guide wheel; 9. a side plate; 10. a spring; 11. a cavity; 12. a one-way air inlet; 13. and an air outlet.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a weighing sensor of piezoelectric type vehicle: including bottom base 1, the top of bottom base 1 is provided with two

wheel platforms

2, and 2 parallel arrangement of two wheel platforms, the tire that supplies both sides goes on, the top of bottom base 1 just is located and is provided with the detection structure between two wheel platforms 2, a weight for detecting the vehicle, the top of detecting the structure is provided with cushion chamber 3, can produce the impact when the vehicle just gone up wheel platform 2, cushion chamber 3 plays the effect of buffering, the top of bottom base 1 just is located two outside fixedly connected with protection platforms 5 of wheel platform 2, make things convenient for the automobile to go on wheel platform 2.

The detection structure comprises a transmission structure 7, one end of the transmission structure 7 supports the wheel platform 2, the other end of the transmission structure 7 is provided with a weighing sensing element 704, the transmission structure 7 further comprises a group of rotary drums, the side surfaces of the rotary drums are fixedly connected with long arms 701, one ends, far away from the rotary drums, of the long arms 701 are fixedly connected with supporting blocks 703, and the supporting blocks 703 are located right below the wheel platform 2;

a short arm 702 is fixedly connected to the side surface of the rotary drum and forms an included angle of 90-110 degrees with the long arm 701, and a weighing sensing element 704 is positioned on the inner side of the short arm 702.

Be provided with limit structure 6 between the bottom of wheel platform 2 and bottom base 1, limit structure 6 includes inserted bar and socket, and inserted bar fixed connection is in wheel platform 2's bottom, and socket fixed connection is at bottom base 1's interior bottom, and the inserted bar is located the socket directly over, guarantees that wheel platform 2 can only the removal from top to bottom can not produce and remove about.

Cushion chamber 3 includes cavity 11, the inside of cavity 11 is provided with the piston, and the bottom fixedly connected with transfer line of piston, the bottom fixedly connected with guide pulley 8 of transfer line, and guide pulley 8 is located the top of forearm 702, a plurality of one-way air inlets 12 and a gas outlet 13 have been seted up to the side of cavity 11, it is comparatively fast when admitting air, it is comparatively slow when giving vent to anger, can play the effect of shocking resistance, guide pulley 8's side fixedly connected with curb plate 9, the top of curb plate 9 is provided with spring 10, and spring 10's top is on the bottom surface of cavity 11, the outside of detecting the structure is provided with detects shell 4.

The working principle is as follows: when the weighing device is used, the bottom base 1 is arranged on a lane, the top of the wheel table 2 is flush with the road surface of the lane, when a vehicle passes through, tires are pressed on the wheel table 2, the supporting block 703 is pressed downwards, then force is transmitted to the short arm 702 through the long arm 701, the short arm 702 rotates, the guide wheel 8 at the top is jacked (the guide wheel 8 slowly rises upwards to offset impact), and then the side face is jacked on the weighing sensing element 704 to achieve the purpose of weighing.

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

1. A weighing sensor of piezoelectric vehicle, includes bottom base (1), its characterized in that: the top of bottom base (1) is provided with two wheel platforms (2), and two wheel platform (2) parallel arrangement, the top of bottom base (1) just is located and is provided with between two wheel platforms (2) and detects the structure, the top that detects the structure is provided with cushion chamber (3), the top of bottom base (1) just is located outside fixedly connected with protection platform (5) of two wheel platforms (2).

2. The piezoelectric vehicle load cell of claim 1, wherein: the detection structure comprises a transmission structure (7), one end of the transmission structure (7) supports the wheel platform (2), and the other end of the transmission structure is provided with a weighing sensing element (704).

3. The piezoelectric vehicle load cell of claim 2, wherein: the transmission structure (7) further comprises a group of rotary drums, the side surfaces of the rotary drums are fixedly connected with long arms (701), one ends, far away from the rotary drums, of the long arms (701) are fixedly connected with supporting blocks (703), and the supporting blocks (703) are located right below the wheel platforms (2);

a short arm (702) is fixedly connected to the side surface of the rotary drum and forms an included angle of 90-110 degrees with the long arm (701), and the weighing sensing element (704) is located on the inner side of the short arm (702).

4. The piezoelectric vehicle load cell of claim 2, wherein: a limiting structure (6) is arranged between the bottom of the wheel platform (2) and the bottom base (1).

5. The piezoelectric vehicle load cell of claim 4, wherein: limiting structure (6) are including inserted bar and socket, inserted bar fixed connection is in the bottom of wheel platform (2), socket fixed connection is in the interior bottom of bottom base (1), and the inserted bar is located the socket directly over.

6. The piezoelectric vehicle load cell of claim 2, wherein: the buffer cavity (3) comprises a cavity (11), a piston is arranged inside the cavity (11), a transmission rod is fixedly connected to the bottom end of the piston, a guide wheel (8) is fixedly connected to the bottom end of the transmission rod, and the guide wheel (8) is located at the top end of the short arm (702).

7. The piezoelectric vehicle load cell of claim 6, wherein: the side surface of the cavity (11) is provided with a plurality of one-way air inlets (12) and an air outlet (13).

8. The piezoelectric vehicle load cell of claim 6, wherein: the side face of the guide wheel (8) is fixedly connected with a side plate (9), a spring (10) is arranged at the top of the side plate (9), and the top end of the spring (10) is pressed against the bottom face of the cavity (11).

9. The piezoelectric vehicle load cell of claim 1, wherein: and a detection shell (4) is arranged on the outer side of the detection structure.