CN216645539U

CN216645539U - Elastomer for weighing sensor

Info

Publication number: CN216645539U
Application number: CN202123354695.8U
Authority: CN
Inventors: 崔浩
Original assignee: Changzhou Suming Instrument Co ltd
Current assignee: Changzhou Suming Instrument Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-05-31
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses an elastomer for a weighing sensor, which supplies power to a circuit board through a connector lug and outputs a weighing result, is simple and convenient to use, is provided with a threaded column on the bottom surface inside a strain groove, the surface of the threaded column is sleeved with a lantern ring, the surface of the lantern ring is movably connected with four groups of support rods through four groups of universal beads, one end of each support rod, far away from the threaded column, is provided with an arc panel, two groups of strain gauges are arranged inside a deformation block, limit beads are also arranged inside the deformation block and are abutted against the surfaces of the corresponding strain gauges, the arc panels are abutted against the surfaces of the corresponding limit beads, the limit beads can prevent the strain gauges from displacing during use, the lantern ring is limited by the threaded column and a limit nut, the limit beads are ensured not to move, the stability of the strain gauges is improved, and the strain gauges are ensured not to displace when being influenced by vibration, impact, extrusion, torsion and the like, the safety protection of weighing under the developments can be realized.

Description

Elastomer for weighing sensor

Technical Field

The utility model relates to the technical field of weighing, in particular to an elastomer for a weighing sensor.

Background

Principle of resistance strain type weighing sensor: the elastic body generates elastic deformation under the action of external force, so that the resistance strain gauge adhered to the surface of the elastic body also generates deformation along with the elastic deformation, after the resistance strain gauge is deformed, the resistance value of the elastic body is changed, and the resistance change is converted into an electric signal through a corresponding measuring circuit, so that the process of converting the external force into the electric signal is completed. In the prior art, connecting pieces are required to be connected at two ends of a sensor, and the connecting pieces are used for connecting a hanging ring for hanging a hanging scale and a lifting hook for connecting a heavy object. Generally, the sensor and the connecting piece are used as two parts and are produced separately, assembly and punching and bolt fixing are carried out at the later stage, and the steps are complex.

To this end, publication No. CN208476369U discloses a weighing sensor, which includes an elastic body and a resistance strain gauge disposed on the elastic body, wherein the elastic body includes a sensing portion and connecting portions disposed at two ends of the sensing portion, respectively, and the resistance strain gauge is disposed on the sensing portion.

For the above-mentioned weighing cell, its easy to assemble still has the following shortcoming: the fixing and protection of the resistance strain gauge are not perfect, the weighing usually occurs in dynamic occasions, the weighing sensor can be influenced by vibration, impact, extrusion, torsion and the like, and the resistance strain gauge is easy to damage, so that the weighing is inaccurate and cannot be weighed.

In view of the above, the present invention provides an elastic body for a weighing sensor, which is improved in view of the conventional structure and defects, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an elastic body for a weighing sensor, which solves the above problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: an elastomer for a weighing sensor comprises a supporting block, wherein mounting holes are formed in four corners of the surface of the supporting block, a circuit board is mounted on the lower portion of the surface of the supporting block, a board groove is formed in the surface of the supporting block, limiting strips are arranged on the inner walls of the left side and the right side of the board groove, the limiting strips abut against the side faces of the circuit board, the size of the circuit board is matched with that of the board groove, the circuit board is conveniently clamped into the board groove, grooves matched with the limiting strips in size are further formed in the left side face and the right side face of the circuit board, two groups of connector lugs are arranged on the lower surface of the supporting block, and the two groups of connector lugs are electrically connected with the circuit board;

the utility model discloses a supporting shoe, including supporting shoe, stop collar, bracing piece, wire way, wire groove, stop collar, wire panel, wire groove, stop collar, wire groove, stop collar, wire groove, wire groove, strain gauge and circuit board, supporting shoe surface, the inside spacing pearl that still is equipped with of deformation piece, and spacing pearl supports on the corresponding strain gauge surface, the spacing pearl surface that corresponds is supported on the arc panel.

Further, it has the loading board to warp a piece surface mounting, the loading board surface is equipped with the screw that runs through the loading board, and the screw thread end and the deformation piece spiro union of screw, and the screw sets up four groups, improves the stability and the fastness that loading board and deformation piece are connected, the screw surface is still the spiro union have the nut of support at the loading board lower surface.

Compared with the prior art, the utility model has the beneficial effects that: the utility model supplies power to the circuit board through the connector lug and outputs a weighing result, the use is simple and convenient, the bearing plate is used for placing a to-be-weighed object, the bearing plate presses the deformation block through the screw, the deformation block deforms and extrudes the strain gauge to deform, the circuit board receives the change of the strain gauge and outputs the change to the display screen after calculation, in the use process, the limiting beads can prevent the strain gauge from displacing, the lantern ring is limited by the threaded column and the limiting nut, the limiting beads are ensured not to move, the stability of the strain gauge is improved, the strain gauge is ensured not to displace when being influenced by vibration, impact, extrusion, torsion and the like, the safety protection of weighing under the dynamic state can be realized, the heavy precision is ensured, and the service life of the weighing sensor is ensured.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of the connection between the support block and the carrier plate according to the present invention;

FIG. 4 is a schematic view of the connection between the support block and the mounting hole according to the present invention.

In the figure: 1. a support block; 2. a plate groove; 3. a limiting strip; 4. a circuit board; 5. a connector lug; 6. a strain tank; 7. a deformation block; 8. a threaded post; 9. a collar; 10. a limit nut; 11. a universal bead; 12. a stay bar; 13. a cambered plate; 14. a limiting bead; 15. a strain gauge; 16. a carrier plate; 17. a screw; 18. a nut; 19. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an elastomer for a weighing sensor comprises a supporting block 1, wherein the supporting block 1 bears all the parts and enables all the parts to be matched with each other for use, a circuit board 4 is mounted on the lower portion of the surface of the supporting block 1, the circuit board 4 is used for receiving data of a deformation block 7 and carrying out conversion and output, a strain groove 6 is formed in the upper portion of the surface of the supporting block 1, two groups of deformation blocks 7 are arranged inside the strain groove 6, and the strain groove 6 limits the deformation blocks 7 and prevents the deformation blocks 7 from sliding;

the utility model discloses a strain gauge, including strain tank 6, lantern ring 9, screw post 8, vaulting pole 12, universal pearl 11, vaulting pole 12, flexible piece 13, two sets of foil gage 15 are equipped with to the one end that screw post 8 was kept away from to vaulting pole 12, the inside bottom surface of strain tank 6 is equipped with screw post 8, the lantern ring 9 surface has four groups of vaulting poles 12 through four groups of universal pearl 11 swing joint, and universal pearl 11 is fixed to vaulting pole 12 memorability and makes vaulting pole 12 rotate, vaulting pole 12, the inside one end that is equipped with of deformation piece 7 is equipped with the cambered plate 13, the inside spacing pearl 14 that still is equipped with of deformation piece 7, and spacing pearl 14 supports on the 15 surfaces of foil gage that correspond, cambered plate 13 supports on the spacing pearl 14 surface that corresponds, and cambered plate 13 is bigger with spacing pearl 14's area of contact, and is better to spacing effect of spacing pearl 14.

During specific implementation, the surface of the threaded column 8 is screwed with a limit nut 10, the limit nut 10 abuts against the upper surface of the lantern ring 9, the lantern ring 9 is prevented from moving up and down, and then the stability of the strain gauge 15 is ensured.

When the circuit board is specifically implemented, the surface of the supporting block 1 is provided with the plate groove 2, the inner walls of the left side and the right side of the plate groove 2 are provided with the limiting strips 3, the limiting strips 3 are abutted to the side faces of the circuit board 4, the plate groove 2 is used for installing the circuit board 4, and the limiting strips 3 can prevent the circuit board 4 from sliding.

When the device is specifically implemented, two groups of connector lugs 5 are arranged on the lower surface of the supporting block 1 and are used for being connected with an external power supply and a display screen.

During specific implementation, surface mounting has loading board 16 on the piece 7 that warp, loading board 16 surface is equipped with the screw 17 that runs through loading board 16, and the screw thread end and the piece 7 spiro union that warp of screw 17, screw 17 surface still spiro union has the nut 18 of propping to at loading board 16 lower surface, and nut 18 prevents the loading board 16 lapse, and screw 17 couples together loading board 16 and the piece 7 that warp.

During specific implementation, the four corners of the surface of the supporting block 1 are provided with mounting holes 19, so that the supporting block 1 is convenient to mount and fix.

Specifically, during the use, carry out electric connection with two sets of connector lugs 5 and external power and display screen, put the title article on loading board 16 after that, loading board 16 is pushed down to the gravity of article, loading board 16 pushes down deformation block 7 through screw 17, deformation block 7 produces certain deformation and extrudes foil gage 15, its resistance change after foil gage 15 pressurized deformation, circuit board 4 converts this resistance change into the signal of telecommunication, and carry out digital demonstration on the display screen through connector lug 5 output, in the weighing process, the lantern ring 9 is restricted to the screw post 8 and moves, lantern ring 9 passes through the slip of universal four group's pearl 11 restriction vaulting poles 12, vaulting pole 12 supports corresponding spacing pearl 14 through corresponding cambered plate 13, maintain the state that spacing pearl 14 inserted in deformation block 7, spacing pearl 14 restricts foil gage 15 displacement, precision when guaranteeing to weigh.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An elastomer for weighing sensor, includes supporting shoe (1), its characterized in that: supporting shoe (1) surface lower part installs circuit board (4), supporting shoe (1) surface upper portion is equipped with strain tank (6), strain tank (6) inside is equipped with two sets of deformation piece (7), strain tank (6) inside bottom surface is equipped with screw thread post (8), screw thread post (8) surface has cup jointed lantern ring (9), lantern ring (9) surface has four group vaulting poles (12) through four groups of universal pearl (11) swing joint, the one end that screw thread post (8) were kept away from in vaulting pole (12) is equipped with cambered plate (13), it is equipped with two sets of foil gage (15) to warp piece (7) inside, it still is equipped with spacing pearl (14) to warp piece (7) inside, and supports at corresponding foil gage (15) surface spacing pearl (14) in spacing pearl (13) surface that corresponds to warp piece (13).

2. An elastic body for a weighing sensor according to claim 1, wherein: the surface of the threaded column (8) is screwed with a limit nut (10), and the limit nut (10) abuts against the upper surface of the lantern ring (9).

3. An elastic body for a weighing sensor according to claim 1, wherein: supporting shoe (1) surface is equipped with board groove (2), and board groove (2) left and right sides inner wall all is equipped with spacing (3), spacing (3) support circuit board (4) side.

4. An elastic body for a weighing sensor according to claim 1, wherein: and two groups of connector lugs (5) are arranged on the lower surface of the supporting block (1).

5. An elastic body for a weighing sensor according to claim 1, wherein: deformation piece (7) upper surface mounting has loading board (16), loading board (16) surface is equipped with screw (17) that run through loading board (16), and the screw thread end of screw (17) and deformation piece (7) spiro union, screw (17) surface still spiro union have to support nut (18) at loading board (16) lower surface.

6. An elastic body for a weighing sensor according to claim 1, wherein: four corners of the surface of the supporting block (1) are provided with mounting holes (19).