CN219064767U

CN219064767U - Pressure sensor calibration device

Info

Publication number: CN219064767U
Application number: CN202320060492.8U
Authority: CN
Inventors: 邓兵; 马凯; 蔡俊; 徐建; 吕银; 周波; 晏小锋; 强星林; 李彪; 林岳
Original assignee: China Railway No 8 Engineering Group Co Ltd
Current assignee: China Railway No 8 Engineering Group Co Ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-05-23
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a pressure sensor calibration device, which belongs to the technical field of sensor detection and comprises a base, wherein a mounting assembly is arranged on the base, a top plate is arranged above the base, support rods are fixedly arranged on two sides of the bottom of the top plate, the bottom ends of the support rods are fixedly connected with the top of the base, a bottom plate is arranged on one side of the support rods, and the bottom plate is movably connected with the support rods through a moving assembly; the pressure sensor to be calibrated can be fixed through the arrangement of the positioning assembly, the positioning seat in the assembly is movably arranged, the positioning assembly can adapt to positioning requirements of pressure sensors of different types, the universality is high, the dynamometer can be driven to move up and down through the arrangement of the moving assembly, so that the dynamometer can apply pressure to the pressure sensor to be calibrated, the pressure sensor to be calibrated is calibrated, the device is simple in structure and convenient to use, and the calibration requirements of a plurality of pressure sensors can be met.

Description

Pressure sensor calibration device

Technical Field

The utility model relates to the technical field of sensor detection, in particular to a pressure sensor calibration device.

Background

The sensor is required to be calibrated before use to ensure accuracy of reading, but after the shield machine is transported to a project and assembled, the pressure sensor is rarely calibrated by people, and various sensors on the shield construction site can have the problems of inaccurate reading, data drift, no reading, data mess jump and the like caused by different reasons, and the sensor is required to be subjected to data calibration after repair is completed so as to achieve the aim of reutilization.

However, the existing pressure sensor calibration device has poor fixing universality on the pressure sensor, and cannot be effectively fixed when the pressure sensor of different types is calibrated, so that deviation occurs in the use position of the pressure sensor in the calibration process, and the data calibration result is inaccurate, so that the pressure sensor calibration device is required to be provided.

Disclosure of Invention

The utility model aims to provide a pressure sensor calibration device which has the advantage of being capable of effectively fixing pressure sensors of different types in the calibration process so as to solve the problems in the background art.

In order to achieve the above purpose, the utility model provides a pressure sensor calibration device, which comprises a base, wherein a mounting assembly is arranged on the base, a top plate is arranged above the base, support rods are fixedly arranged on two sides of the bottom of the top plate, the bottom ends of the support rods are fixedly connected with the top of the base, a bottom plate is arranged on one side of the support rods, the bottom plate is movably connected with the support rods through a moving assembly, a dynamometer is fixedly arranged on one side of the bottom plate, and a positioning assembly used for fixing the pressure sensor is arranged on the top of the base and under the dynamometer.

Preferably, the positioning assembly comprises a fixed seat fixedly mounted at the top of the base, one side of the fixed seat is provided with a positioning seat, rubber pads are fixedly connected with the inner sides of the positioning seat and the fixed seat, and one side of the positioning seat is provided with a driving assembly.

Preferably, the drive assembly includes fixed mounting in the fixed plate at base top, the surface of fixed plate inlays and is equipped with the screwed pipe, the inner chamber threaded connection of screwed pipe has the threaded rod, the outside that the screwed pipe was all run through at the both ends of threaded rod and extend to the screwed pipe, the one end fixed mounting of threaded rod has the handle, the other end of threaded rod rotates with the surface of positioning seat to be connected, still be provided with spacing subassembly between positioning seat and the fixed plate.

Preferably, the limiting assembly comprises limiting rods fixedly mounted at four corners on one side of the positioning seat, limiting holes matched with the limiting rods are formed in the surface of the fixing plate, and the inner walls of the limiting holes are slidably connected with the surfaces of the limiting rods.

Preferably, a limiting plate is fixedly arranged at one end of the limiting rod, and one side of the limiting plate can be in contact with the surface of the fixing plate.

Preferably, the moving assembly comprises a driving motor fixedly mounted on the top of the top plate, a driving screw rod is fixedly mounted below the driving motor, the driving motor penetrates through the top plate and extends to the top plate, the bottom end of the driving screw rod is rotationally connected with the top of the base, a sliding seat is mounted on the surface of the driving screw rod in a matched mode, and one side of the bottom plate is fixedly connected with the surface of the sliding seat.

Preferably, the surface of the sliding seat is provided with a through groove matched with the supporting rod, and the inner wall of the through groove is in sliding connection with the surface of the supporting rod.

Preferably, the installation component is including setting up the mounting groove in the base four corners, the inner chamber threaded connection of mounting groove has the installation pole, the bottom of installation pole runs through the mounting groove and extends to the below of base.

Compared with the prior art, the utility model has the beneficial effects that:

1. the pressure sensor to be calibrated can be fixed through the arrangement of the positioning assembly, the positioning seat in the assembly is movably arranged, the positioning assembly can adapt to the positioning requirements of pressure sensors of different types, the universality is high, the dynamometer can be driven to move up and down through the arrangement of the moving assembly, so that the dynamometer can apply pressure to the pressure sensor to be calibrated, the pressure sensor to be calibrated is calibrated, the device is simple in structure and convenient to use, and the calibration requirements of a plurality of pressure sensors can be met;

2. the device can be used for mounting and fixing the using position of the device through the arrangement of the mounting assembly, the using position of the positioning seat can be moved through the arrangement of the driving assembly, the pressure sensor can be positioned and fixed through the cooperation of the driving assembly and the fixing seat, and the moving stability of the positioning seat can be improved through the arrangement of the limiting assembly.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a mobile assembly according to the present utility model;

FIG. 3 is a schematic view of a positioning assembly according to the present utility model;

fig. 4 is a schematic structural view of the driving assembly of the present utility model.

In the figure: 1. a base; 2. a top plate; 3. a support rod; 4. a bottom plate; 5. a load cell; 6. a fixing seat; 7. a positioning seat; 8. a rubber pad; 9. a fixing plate; 10. a threaded tube; 11. a threaded rod; 12. a handle; 13. a limit rod; 14. a limiting hole; 15. a limiting plate; 16. a driving motor; 17. driving a screw rod; 18. a slide; 19. a through groove; 20. a mounting groove; 21. and (5) mounting a rod.

Detailed Description

Referring to fig. 1-4, the utility model provides a pressure sensor calibration device, which comprises a base 1, wherein a mounting assembly is arranged on the base 1, the mounting assembly comprises mounting grooves 20 arranged at four corners of the base 1, the inner cavity of the mounting groove 20 is in threaded connection with a mounting rod 21, and the bottom end of the mounting rod 21 penetrates through the mounting groove 20 and extends to the lower part of the base 1; through the setting of installation component, can install the fixed to the position of use of this device, the user can place base 1 on the installation face when installing this device to screw up installation pole 21 makes the bottom and the installation face threaded connection of installation pole 21 be in the same place.

As a preferred mode, a positioning component used for fixing the pressure sensor is arranged at the top of the base 1 and right below the dynamometer 5, the positioning component comprises a fixed seat 6 fixedly arranged at the top of the base 1, a positioning seat 7 is arranged at one side of the fixed seat 6, rubber pads 8 are fixedly connected to the inner sides of the positioning seat 7 and the fixed seat 6, a driving component is arranged at one side of the positioning seat 7, the driving component comprises a fixed plate 9 fixedly arranged at the top of the base 1, a threaded pipe 10 is embedded on the surface of the fixed plate 9, a threaded rod 11 is connected with an inner cavity of the threaded pipe 10 in a threaded manner, two ends of the threaded rod 11 penetrate through the threaded pipe 10 and extend to the outside of the threaded pipe 10, a handle 12 is fixedly arranged at one end of the threaded rod 11, and the other end of the threaded rod 11 is in rotary connection with the surface of the positioning seat 7;

through setting up of locating component, can fix the pressure sensor that needs to mark, the user can arrange pressure sensor between fixing base 6 and positioning seat 7, then twist handle 12, and handle 12's rotation can drive threaded rod 11 and rotate, and threaded rod 11's rotation can drive positioning seat 7 and remove to fixing base 6's direction to press from both sides pressure sensor tightly fixedly rather than the cooperation use, can play the guard action to pressure sensor at the in-process that presss from both sides tightly through setting up of rubber pad 8.

A limiting assembly is further arranged between the positioning seat 7 and the fixed plate 9, the limiting assembly comprises limiting rods 13 fixedly arranged at four corners on one side of the positioning seat 7, limiting holes 14 matched with the limiting rods 13 are formed in the surface of the fixed plate 9, the inner walls of the limiting holes 14 are in sliding connection with the surface of the limiting rods 13, one end of the limiting rods 13 is fixedly provided with limiting plates 15, and one side of each limiting plate 15 can be in contact with the surface of the fixed plate 9;

the stability that the positioning seat 7 moved can be promoted through the setting of spacing subassembly, and the positioning seat 7 can drive gag lever post 13 and slide at the inner chamber of spacing hole 14 in the removal, can play spacing effect to gag lever post 13 through the setting of limiting plate 15 to prevent that gag lever post 13 and spacing hole 14 from breaking away from connected state.

It is worth noting that a top plate 2 is arranged above a base 1, supporting rods 3 are fixedly arranged on two sides of the bottom of the top plate 2, the bottom ends of the supporting rods 3 are fixedly connected with the top of the base 1, a bottom plate 4 is arranged on one side of each supporting rod 3, the bottom plate 4 is movably connected with the supporting rods 3 through a moving assembly, the moving assembly comprises a driving motor 16 fixedly arranged on the top of the top plate 2, an output shaft of the driving motor 16 penetrates through the top plate 2 and extends to the lower side of the top plate 2, a driving screw 17 is fixedly arranged below the top plate 2, the bottom end of the driving screw 17 is rotationally connected with the top of the base 1, a sliding seat 18 is arranged on the surface of the driving screw 17 in a matched mode, one side of the bottom plate 4 is fixedly connected with the surface of the sliding seat 18, a through groove 19 matched with the supporting rods 3 is formed in the surface of the sliding seat 18, the inner wall of the through groove 19 is in sliding connection with the surface of the supporting rods 3, and a dynamometer 5 is fixedly arranged on one side of the bottom plate 4;

after the position of the pressure sensor is fixed, a user can open the driving motor 16 through the external controller, an output shaft of the driving motor 16 drives the sliding seat 18 to move through the driving screw rod 17, the sliding seat 18 can move through the bottom plate 4 to drive the dynamometer 5 to move, the dynamometer 5 can apply pressure to the pressure sensor so as to calibrate the pressure sensor, the supporting rod 3 can be connected with the sliding seat 18 in a sliding manner through the arrangement of the through groove 19, and meanwhile, the sliding seat 18 can be limited, and the sliding seat 18 is prevented from rotating along with the driving screw rod 17.

Claims

1. The utility model provides a pressure sensor calibration device, includes base (1), be provided with installation component on base (1), its characterized in that: the top of base (1) is provided with roof (2), the equal fixed mounting in both sides of roof (2) bottom has bracing piece (3), the bottom of bracing piece (3) and the top fixed connection of base (1), one side of bracing piece (3) is provided with bottom plate (4), bottom plate (4) are in the same place through moving assembly and bracing piece (3) swing joint, one side fixed mounting of bottom plate (4) has dynamometer (5), the top of base (1) just is provided with the locating component that is used for fixing pressure sensor under dynamometer (5).

2. A pressure sensor calibration device according to claim 1, wherein: the positioning assembly comprises a fixing seat (6) fixedly mounted at the top of the base (1), one side of the fixing seat (6) is provided with a positioning seat (7), rubber pads (8) are fixedly connected to the inner sides of the positioning seat (7) and the fixing seat (6), and one side of the positioning seat (7) is provided with a driving assembly.

3. A pressure sensor calibration device according to claim 2, characterized in that: the driving assembly comprises a fixed plate (9) fixedly mounted at the top of the base (1), a threaded pipe (10) is embedded in the surface of the fixed plate (9), a threaded rod (11) is connected with the inner cavity of the threaded pipe (10) in a threaded mode, two ends of the threaded rod (11) penetrate through the threaded pipe (10) and extend to the outside of the threaded pipe (10), a handle (12) is fixedly mounted at one end of the threaded rod (11), the other end of the threaded rod (11) is connected with the surface of the positioning seat (7) in a rotating mode, and a limiting assembly is further arranged between the positioning seat (7) and the fixed plate (9).

4. A pressure sensor calibration device according to claim 3, wherein: the limiting assembly comprises limiting rods (13) fixedly mounted at four corners on one side of the positioning seat (7), limiting holes (14) matched with the limiting rods (13) are formed in the surface of the fixing plate (9), and the inner walls of the limiting holes (14) are in sliding connection with the surfaces of the limiting rods (13).

5. The pressure sensor calibration device of claim 4, wherein: one end of the limiting rod (13) is fixedly provided with a limiting plate (15), and one side of the limiting plate (15) can be in contact with the surface of the fixed plate (9).

6. A pressure sensor calibration device according to claim 1, wherein: the movable assembly comprises a driving motor (16) fixedly mounted on the top of the top plate (2), a driving screw (17) is fixedly mounted below the driving motor (16) penetrating through the top plate (2) and extending to the top plate (2), the bottom end of the driving screw (17) is rotatably connected with the top of the base (1), a sliding seat (18) is mounted on the surface of the driving screw (17) in a matched mode, and one side of the bottom plate (4) is fixedly connected with the surface of the sliding seat (18).

7. The pressure sensor calibration apparatus of claim 6, wherein: the surface of the sliding seat (18) is provided with a through groove (19) matched with the supporting rod (3), and the inner wall of the through groove (19) is in sliding connection with the surface of the supporting rod (3).

8. A pressure sensor calibration device according to claim 1, wherein: the mounting assembly comprises mounting grooves (20) formed in four corners of the base (1), mounting rods (21) are connected with inner cavities of the mounting grooves (20) in a threaded mode, and the bottom ends of the mounting rods (21) penetrate through the mounting grooves (20) and extend to the lower portion of the base (1).