CN217211207U

CN217211207U - Force transducer with overload protection function

Info

Publication number: CN217211207U
Application number: CN202221138514.XU
Authority: CN
Inventors: 刘仕奇; 刘飞
Original assignee: Bengbu Guangya Machinery Technology Co ltd
Current assignee: Bengbu Guangya Machinery Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-16
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a force cell sensor with overload protection function, belonging to the technical field of force cell sensors; the traditional force measuring sensor has no overload protection capability and is easy to overload or impact damage; the protective cover is fixedly arranged on the upper surface of the fixed plate, a plurality of connecting grooves are formed in the protective cover, a force cell sensor body is arranged on the fixed plate, a connecting line is fixedly connected to the force cell sensor body, and two pairs of limiting blocks are fixedly arranged on the periphery of the fixed plate; put into the spread groove with the force cell sensor body in, through fixed establishment with force cell sensor body rigidity, can protect the force cell sensor body through the visor, avoid its collision to cause the damage, when examining time measuring, the lift post can move down along the lift groove to the extrusion spring, when the overload will appear in the force cell sensor body, lift socle portion and guard bar contact avoid the force cell sensor body to transship.

Description

Force transducer with overload protection function

Technical Field

The utility model relates to a force cell sensor art field specifically is a take force cell sensor of overload protection function.

Background

The force sensor comprises three parts, namely a bridge circuit (such as a Wheatstone bridge) consisting of one or more elastic bodies capable of deforming after being stressed, a resistance strain gauge capable of sensing the deformation, an adhesive capable of fixedly adhering the resistance strain gauge to the elastic body and conducting the strain, a sealant for protecting an electronic circuit and the like;

the traditional force measuring sensor does not have overload protection capability and is easy to overload or impact damage, so that a force measuring sensor with an overload protection function is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take force cell sensor of overload protection function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take force cell sensor of overload protection function, includes the fixed plate, fixed surface is equipped with the visor on the fixed plate, a plurality of spread grooves have been seted up on the protective cover, be equipped with the force cell sensor body on the fixed plate, fixed connection connecting wire on the force cell sensor body, the fixed plate is fixed all around and is equipped with two pairs of stoppers, the thread groove has been seted up on the stopper, the fixed plate upper surface is equipped with fixed establishment.

As a preferred technical scheme of the utility model, fixed establishment includes the dead lever, fixed surface is connected on dead lever lower surface and the fixed plate, fixed plate upper surface slides and is equipped with a pair of carriage release lever, fixed plate upper surface slides and is equipped with the connecting rod, dead lever, carriage release lever and connecting rod tip are all fixed and are equipped with the grip block, the fixed spacing that is equipped with in connecting rod both sides, the spacing groove has been seted up on the carriage release lever, spacing one end and spacing groove sliding connection.

As a preferred technical scheme of the utility model, a plurality of shifting chutes have been seted up to the fixed plate upper surface, it is equipped with the movable block to slide in the shifting chute, fixed surface is connected under movable block upper surface and carriage release lever and the connecting rod.

As a preferred technical scheme of the utility model, the fixed limiting plate that is equipped with in fixed plate one side, the screw thread is equipped with the threaded rod on the limiting plate, grip block one end is kept away from with the connecting rod to threaded rod one end and is rotated and be connected, the threaded rod other end is fixed and is equipped with rotatory handle.

As a preferred technical scheme of the utility model, fixed surface is equipped with the fixed column on the fixed plate, the lift groove has been seted up in the fixed column, it is equipped with the lift post to slide in the lift inslot, the fixed spring that is equipped with of lift post lower extreme, spring lower extreme and lift tank bottom fixed connection, the lift inslot is fixed and is equipped with the fender beam.

As a preferred technical scheme of the utility model, dead lever, carriage release lever and connecting rod shape are the same, the grip block is the arc shape, dead lever and connecting rod are the symmetric distribution.

As an optimal technical scheme of the utility model, force cell sensor body and connecting wire pass the spread groove, the visor equals with the fixed plate cross section.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. put into the spread groove with the force cell sensor body in, through fixed establishment with force cell sensor body rigidity, can protect the force cell sensor body through the visor, avoid its collision to cause the damage, when examining time measuring, the lift post can move down along the lift groove to the extrusion spring, when the overload will appear in the force cell sensor body, lift socle portion and guard bar contact avoid the force cell sensor body to transship.

Drawings

FIG. 1 is a schematic structural view of the present invention,

FIG. 2 is a schematic view of the fixing mechanism of the present invention,

fig. 3 is a schematic view of the cross-sectional structure of the fixing column of the present invention.

In the figure: 1. a fixing plate; 11. a protective cover; 12. connecting grooves; 13. a force sensor body; 14. a limiting block; 15. a thread groove; 16. a connecting wire; 2. a fixing mechanism; 21. a fixing rod; 22. a travel bar; 23. a connecting rod; 24. a clamping block; 25. a limiting frame; 26. a limiting groove; 3. a moving groove; 31. a moving block; 4. a limiting plate; 41. a threaded rod; 42. rotating the handle; 5. fixing the column; 51. a lifting groove; 52. a lifting column; 53. a spring; 54. a guard bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Example (b): as shown in FIGS. 1-3, the utility model provides a force cell sensor with overload protection function, which comprises a fixing plate 1, a protective cover 11 is fixedly arranged on the upper surface of the fixing plate 1, a plurality of connecting grooves 12 are arranged on the protective cover 11, a force cell sensor body 13 is arranged on the fixing plate 1, a connecting wire 16 is fixedly connected on the force cell sensor body 13, two pairs of limit blocks 14 are fixedly arranged around the fixing plate 1, thread grooves 15 are arranged on the limit blocks 14, the force cell sensor body 13 and the connecting wire 16 pass through the connecting grooves 12, the cross sections of the protective cover 11 and the fixing plate 1 are equal, a fixing mechanism 2 is arranged on the upper surface of the fixing plate 1, the fixing plate 1 is fixed by penetrating the thread grooves 15 on the limit blocks 14 through screws, the connecting wire 16 is firstly placed in the connecting grooves 12, the force cell sensor body 13 is fixed by the fixing mechanism 2, the load cell body 13 can be protected by the protective cover 11 to prevent the load cell body from being damaged by collision.

The fixing mechanism 2 comprises a fixing rod 21, the lower surface of the fixing rod 21 is fixedly connected with the upper surface of a fixing plate 1, the upper surface of the fixing plate 1 is provided with a pair of moving rods 22 in a sliding manner, the upper surface of the fixing plate 1 is provided with a connecting rod 23 in a sliding manner, the end parts of the fixing rod 21, the moving rods 22 and the connecting rod 23 are respectively and fixedly provided with a clamping block 24, two sides of the connecting rod 23 are fixedly provided with a limiting frame 25, the moving rod 22 is provided with a limiting groove 26, one end of the limiting frame 25 is connected with the limiting groove 26 in a sliding manner, the fixing rod 21, the moving rods 22 and the connecting rod 23 are in the same shape, the clamping blocks 24 are in an arc shape, the fixing rod 21 and the connecting rod 23 are symmetrically distributed, the upper surface of the fixing plate 1 is provided with a plurality of moving grooves 3, moving blocks 31 are arranged in the moving grooves 3 in a sliding manner, the upper surface of the moving blocks 31 is fixedly connected with the lower surfaces of the moving rods 22 and the connecting rod 23, one side of the fixing plate 1 is fixedly provided with a limiting plate 4, a threaded rod 41 is arranged on the limiting plate 4, threaded rod 41 one end is kept away from grip block 24 one end with connecting rod 23 and is rotated and be connected, the fixed rotatory handle 42 that is equipped with in 41 other end of threaded rod, it drives threaded rod 41 and rotates to rotate rotatory handle 42, threaded rod 41 removes along limiting plate 4, thereby promote connecting rod 23 and remove, connecting rod 23 drives spacing 25 and removes, spacing 25 removes along spacing groove 26, drive carriage release lever 22 and connecting rod 23 synchronous motion, carriage release lever 22 and connecting rod 23 pass through movable block 31 and inwards remove along the shifting chute 3, through dead lever 21, grip block 24 and the inseparable laminating of force cell body 13 outer wall on four not equidirectional directions of carriage release lever 22 and connecting rod 23, with force cell body 13 rigidity.

Fixed plate 1 upper surface is fixed and is equipped with fixed column 5, seted up lifting tank 51 in the fixed column 5, it is equipped with lift post 52 to slide in lifting tank 51, the fixed spring 53 that is equipped with of lift post 52 lower extreme, spring 53 lower extreme and lifting tank 51 bottom fixed connection, lifting tank 51 internal fixation is equipped with fender beam 54, when examining time measuring, lift post 52 can be along lifting tank 51 downstream, and extrude spring 53, when the overload will appear in force cell sensor body 13, lift post 52 bottom and fender beam 54 contact, avoid force cell sensor body 13 to transship.

The working principle is as follows: firstly, the position of a fixing plate 1 is fixed by penetrating a screw through a thread groove 15 on a limiting block 14, a connecting wire 16 is firstly placed into a connecting groove 12, a load cell body 13 is placed into the connecting groove 12, then a rotating handle 42 is rotated to drive a threaded rod 41 to rotate, the threaded rod 41 moves along a limiting plate 4, so that a connecting rod 23 is pushed to move, the connecting rod 23 drives a limiting frame 25 to move, the limiting frame 25 moves along a limiting groove 26, a moving rod 22 and the connecting rod 23 are driven to move synchronously, the moving rod 22 and the connecting rod 23 move inwards along a moving groove 3 through a moving block 31, clamping blocks 24 in four different directions of the fixing rod 21, the moving rod 22 and the connecting rod 23 are tightly attached to the outer wall of the load cell body 13, the load cell body 13 is fixed, and then when detection is carried out, a lifting column 52 moves downwards along a lifting groove 51, and presses the spring 53, and when the load cell body 13 is about to be overloaded, the bottom of the lifting column 52 contacts the protective rod 54, preventing the load cell body 13 from being overloaded.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take load cell of overload protection function, includes fixed plate (1), its characterized in that: fixed surface is equipped with visor (11) on fixed plate (1), a plurality of spread grooves (12) have been seted up on visor (11), be equipped with force cell sensor body (13) on fixed plate (1), fixed connection connecting wire (16) are gone up in force cell sensor body (13), fixed plate (1) is fixed all around and is equipped with two pairs of stopper (14), threaded groove (15) have been seted up on stopper (14), fixed plate (1) upper surface is equipped with fixed establishment (2).

2. The load cell with overload protection function according to claim 1, wherein: fixed establishment (2) include dead lever (21), fixed surface is connected on dead lever (21) lower surface and fixed plate (1), fixed plate (1) upper surface slides and is equipped with a pair of carriage release lever (22), fixed plate (1) upper surface slides and is equipped with connecting rod (23), dead lever (21), carriage release lever (22) and connecting rod (23) tip are all fixed and are equipped with grip block (24), connecting rod (23) both sides are fixed and are equipped with spacing (25), spacing groove (26) have been seted up on carriage release lever (22), spacing (25) one end and spacing groove (26) sliding connection.

3. The load cell with overload protection function according to claim 1, wherein: the upper surface of the fixed plate (1) is provided with a plurality of moving grooves (3), moving blocks (31) are arranged in the moving grooves (3) in a sliding mode, and the upper surfaces of the moving blocks (31) are fixedly connected with the lower surfaces of the moving rods (22) and the connecting rods (23).

4. The load cell with overload protection function according to claim 1, wherein: fixed plate (1) one side is fixed and is equipped with limiting plate (4), the screw thread is equipped with threaded rod (41) on limiting plate (4), grip block (24) one end rotation connection is kept away from with connecting rod (23) threaded rod (41) one end, threaded rod (41) other end is fixed and is equipped with rotatory handle (42).

5. The load cell with overload protection function according to claim 1, wherein: the fixing plate is characterized in that a fixing column (5) is fixedly arranged on the upper surface of the fixing plate (1), a lifting groove (51) is formed in the fixing column (5), a lifting column (52) is arranged in the lifting groove (51) in a sliding mode, a spring (53) is fixedly arranged at the lower end of the lifting column (52), the lower end of the spring (53) is fixedly connected with the bottom of the lifting groove (51), and a protection rod (54) is fixedly arranged in the lifting groove (51).

6. The load cell with overload protection function according to claim 2, wherein: the fixing rod (21), the moving rod (22) and the connecting rod (23) are the same in shape, the clamping block (24) is arc-shaped, and the fixing rod (21) and the connecting rod (23) are symmetrically distributed.

7. The load cell with overload protection function according to claim 1, wherein: the force measuring sensor body (13) and the connecting line (16) penetrate through the connecting groove (12), and the cross sections of the protective cover (11) and the fixing plate (1) are equal.