CN108956010A - A kind of calibration device for pressure gauge - Google Patents

Abstract

The present invention discloses a kind of calibration device for pressure gauge, it is related to pressure gauge detection technique field, including the pedestal for installing pressure gauge, the outer diameter of the pedestal is equipped with bearing, the outer diameter of the bearing is equipped with rotor, the rotor is hollow structure, the shape at the top of the hollow structure and the joint component of pressure gauge match, the outer surface of the rotor is additionally provided with for providing the driving mechanism of power to rotor, it further include for providing the detection case of hydraulic pressure, the pedestal is mounted on the top of detection case, standard scale is additionally provided at the top of the detection case, gas supply mechanism is additionally provided on the detection case.The present invention drives rotor to rotate so that pressure gauge is installed in pedestal by driving mechanism, easy to operate, improves work efficiency, and the design of gas supply mechanism is so that device not only can detecte water pressure gauge and can also detect air gauge, so that the function of device is more abundant.

Description

A pressure gauge calibration device

technical field

The invention relates to the technical field of pressure gauge detection, in particular to a pressure gauge calibration device.

Background technique

After the pressure gauge is produced, it needs to be calibrated.

Most of the existing pressure gauge calibration devices are installed with a joint on the table, and the joint and the pressure gauge are connected by threads. During the calibration process, a wrench is needed to adjust and reinforce, which undoubtedly causes inconvenience in use. The operation is cumbersome, and it is easy to cause the labor intensity of the workers to check and reduce the work efficiency, and the function of the device is single at the same time.

Chinese patent application No. CN201010140921.X discloses a pressure gauge quick calibration connector, including a vertically arranged pressure source connection seat, the pressure source connection seat is provided with a vertical through hole; the through hole can slide up and down. There is a piston, and there is a seal between the piston and the inner wall of the through hole; a vertical pressure spring is provided between the lower end of the piston and the pressure source connection seat; the piston is provided with a vertically through vent hole, and a sealing rubber ring is provided at the upper end of the vent hole ;The pressure source connecting seat is covered with a fixed ferrule, and the fixed ferrule and the pressure source connecting seat are fixedly connected; there are two openings on the fixed ferrule, and a clamping piece is inserted into each opening, and the width of the clamping piece is larger than that of the fixed The thickness of the side wall of the ferrule; the clamping piece is located above the pressure source connection seat; there are upper and lower movable sleeves outside the fixed ferrule, and the upper end of the inner wall of the upper and lower movable sleeves is an outwardly inclined slope. This invention is complicated in structure, all needs to finish operation by hand, also has the situation of inconvenient operation.

Contents of the invention

The purpose of the present invention is to provide a pressure gauge calibration device to solve the problems of inconvenient operation, low efficiency and single function in the installation process of the pressure gauge in the background art.

A pressure gauge verification device, comprising a base for installing a pressure gauge, bearings are provided on the outer diameter of the base, a rotor is provided on the outer diameter of the bearing, the rotor is a hollow structure, and the hollow structure The shape of the top of the rotor matches the joint parts of the pressure gauge. The outer surface of the rotor is also provided with a driving mechanism for providing power to the rotor, and a detection box for providing water pressure. The base is installed on the detection box. The top, the top of the test box is also provided with a standard meter, and the test box is also provided with an air supply mechanism.

Optionally, the drive mechanism includes a first motor and a first gear fixedly connected to the outer surface of the rotor, a second gear is fixedly installed on the rotating shaft of the first motor, and the first gear is connected to the second gear. The gears are connected by rack and belt drive.

Optionally, the top of the detection box is provided with several bases, the detection box is also provided with a first counterbore, the first motor is arranged in the first counterbore, and several of the bases are arranged side by side On the top of the detection box, an intermediate gear is also arranged between the two bases, and the intermediate gear is rotatably connected to the top of the detection box, and the rack belt is sequentially meshed with a plurality of the first gears and the intermediate gear , the intermediate gear is used to tighten the rack belt, and the bottom of the detection box is also provided with a water inlet and a water outlet.

Optionally, the air supply mechanism includes a second motor, the second motor is arranged in the second counterbore provided on the detection box, the rotation shaft of the second motor is provided with a first bevel gear, the The first bevel gear meshes with the second bevel gear, and the second bevel gear is connected to the turntable through the rotating shaft, and the rotating shaft is connected to the top of the detection box in rotation, and a connecting rod is hinged at the non-center of the rotating disk, and the connecting rod A piston is hinged at the lower end of the cylinder, the piston is slidably connected to the inside of the cylinder, the cylinder is fixedly connected to the outer surface of the detection box, and the surface of the cylinder is also provided with a first one-way valve and a second one-way valve , the first one-way valve communicates with the outside with one end, and the second one-way valve is connected with the detection box through a connecting pipe.

Optionally, a water circulation mechanism is also included.

Optionally, the water circulation mechanism includes a water tank for storing water, the upper end and the lower end of the water tank are respectively provided with a water inlet and a water suction port, and a first pipeline is fixedly connected between the water inlet and the water suction port, and the A water pump and a first valve are connected in series on the first pipeline, a second pipeline is fixedly connected between the water outlet and the water inlet, a second valve is connected in series on the second pipeline, and the top of the water tank is also fixedly connected There is a support plate, and the detection box is detachably connected to the top of the support plate.

Optionally, a water pressure sensor is also provided on the surface of the detection box, the water pressure sensor is connected to a display through wires, the water pressure sensor is electrically connected to a controller, and the controller is electrically connected to the water pump.

Optionally, a limit mechanism is also included.

Optionally, the limiting mechanism includes a limiting block, a pressure sensor is arranged on the top of the limiting block, and the pressure sensor is electrically connected to the controller.

The beneficial effects of the present invention are: the drive mechanism drives the rotor to rotate so that the pressure gauge is installed in the base, the operation is convenient, and the work efficiency is improved. The design of the air supply mechanism enables the device to detect not only the water pressure gauge but also the barometer, so that the device The functions are more abundant. The first motor drives the rotor to rotate, which realizes automatic operation and further improves the operation efficiency. One first gear can drive multiple rotors to rotate, which makes the structure of the whole detection device more compact and makes full use of the first gear. The power provided by a motor saves energy and can reduce the number of motors and reduce the production cost of the detection device.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the present invention;

Fig. 2 is the top view of the detection box place of the specific embodiment of the present invention;

Fig. 3 is an enlarged view of the rotor in the specific embodiment of the present invention.

Among them, base 1, bearing 2, rotor 3, pressure gauge joint part 4, driving mechanism 5, detection box 6, water circulation mechanism 7, limit mechanism 8, air supply mechanism 9, first motor 51, first gear 52, the first Two gears 53, rack belt 54, intermediate gear 55, first counterbore 61, water inlet 62, water outlet 63, standard meter 64, water pressure sensor 65, display 66, controller 67, water tank 71, water inlet 72, Water intake 73, first pipeline 74, water pump 75, first valve 76, second pipeline 77, second valve 78, support plate 79, limit block 81, second motor 91, second counterbore 92, first cone Gear 93, second bevel gear 94, rotating shaft 95, turntable 96, bracket 97, connecting rod 98, piston 99, cylinder 910, first one-way valve 911, second one-way valve 912, connecting pipe 913.

Detailed ways

Through the description of the embodiments below, the specific implementation of the present invention includes the shape, structure, mutual position and connection relationship between the various parts, the function and working principle of each part, the manufacturing process and the operation and use method of the various components involved. etc., to make further detailed descriptions to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

As shown in Figures 1 to 3, a pressure gauge calibration device includes a base 1 for installing a pressure gauge, and a bearing 2 is fixedly connected to the outer diameter of the base 1. Specifically, the bearing 2 can be clamped Connected to the outer diameter of the base 1, a rotor 3 is fixedly connected to the outer diameter of the bearing 2, the rotor 3 can be clamped on the outer diameter of the bearing 2, the rotor 3 is a hollow structure, and the hollow structure The shape of the top matches the joint part 4 of the pressure gauge. The size of the top of the hollow structure can limit the rotation of the pressure gauge joint part 4, but does not limit the up and down movement of the pressure gauge joint part 4. The outer surface of the rotor 3 also A drive mechanism 5 for providing power to the rotor 3 is provided, and a detection box 6 for providing hydraulic pressure is provided. The base 1 is installed on the top of the detection box 6, and a standard gauge 64 is also provided on the top of the detection box 6 , The detection box 6 is also provided with an air supply mechanism 9 . The drive mechanism 5 drives the rotor 3 to rotate so that the pressure gauge is installed in the base 1, which is easy to operate and improves work efficiency. The design of the air supply mechanism 9 enables the device to detect not only the water pressure gauge but also the barometer, making the device more functional. Rich.

In this embodiment, the drive mechanism 5 includes a first motor 51 and a first gear 52 fixedly connected to the outer surface of the rotor 3, a second gear 53 is fixedly installed on the rotating shaft of the first motor 51, the The first gear 52 is connected to the second gear 53 via a rack belt 54 . The rotor 3 is driven to rotate by the first motor 51, which realizes automatic operation and further improves the operation efficiency.

In this embodiment, the top of the detection box 6 is provided with several bases 1, and the detection box 6 is also provided with a first counterbore 61, and the first motor 51 is installed in the first counterbore 61 , several bases 1 are arranged side by side on the top of the detection box 6, an intermediate gear 55 is also arranged between the two bases 1, and the intermediate gear 55 is rotatably connected to the top of the detection box 6, and the rack belt 54 meshes with multiple first gears 52 and intermediate gears 55 in turn, and the intermediate gears 55 are used to tighten the rack belt 54 . This makes the structure of the entire detection device more compact, fully utilizes the power provided by the first motor 51, saves energy and can reduce the number of motors and reduce the production cost of the detection device. The bottom of the detection box 6 is also provided with a water inlet 62 and water outlet 63.

In this embodiment, the air supply mechanism 9 includes a second motor 91, the second motor 91 is arranged in the second counterbore 92 provided on the detection box 6, and the rotation shaft of the second motor 91 is fixed A first bevel gear 93 is installed, and the first bevel gear 93 is meshed with a second bevel gear 94, and the second bevel gear 94 is fixedly connected with a rotating disk 96 through a rotating shaft 95, and the two ends of the rotating shaft 95 are respectively welded on the second bevel The middle part of the gear 94 and the rotating disk 96, the rotating shaft 95 is rotatably connected to the top of the detection box 6, the specific rotating shaft 95 is rotatably connected to the bracket 97, and the bracket 97 is fixedly connected to the top of the detection box 6, and the non-center of the rotating disk 96 A connecting rod 98 is hinged, and a piston 99 is hinged at the lower end of the connecting rod 98. The piston 99 is slidably connected to the inside of the cylinder 910, and the cylinder 910 is fixedly connected to the outer surface of the detection box 6. The cylinder The surface of 910 is also provided with a first one-way valve 911 and a second one-way valve 912, the first one-way valve 911 communicates with the outside with one end, and the second one-way valve 912 is connected to the detection box 6 through a connecting pipe 913 connect.

In this embodiment, a water circulation mechanism 7 is also included. Specifically, the water circulation mechanism 7 includes a water tank 71 for storing water. The upper end and the lower end of the water tank 71 are respectively provided with a water inlet 72 and a water suction port 73. A first pipe 74 is fixedly connected between the water inlet 62 and the water outlet 73. Specifically, the two ends of the first pipe 74 are respectively welded to the water inlet 62 and the water outlet 73. The first pipe 74 is connected in series with a water pump 75. and the first valve 76, a second pipeline 77 is fixedly connected between the water outlet 63 and the water inlet 72, and the two ends of the specific second pipeline 77 are respectively welded to the two ends of the water outlet 63 and the water inlet 72, and the The second pipe 77 is connected in series with a second valve 78, specifically the second valve 78 can be a ball valve, the top of the water tank 71 is also fixedly connected with a support plate 79, and the support plate 79 can be welded on the bottom of the water tank 71 The top is also fixedly connected to the top of the water tank 71 by bolts, and the detection box 6 is detachably connected to the top of the support plate 79 by bolts.

The design of the water circulation mechanism 7 enables the water in the water tank 71 to be recycled, which saves water resources, reduces water consumption, and reduces the production cost of the enterprise. The detection box 6 is detachably connected to the top of the support plate 79 by bolts, so that the detection box 6 can be easily replaced when it is damaged, which improves the practicability of the device.

In this embodiment, a water pressure sensor 65 is installed on the surface of the detection box 6, and the water pressure sensor 65 is connected to a display 66 through a wire, and the water pressure sensor 65 is electrically connected to a controller 67. The controller 67 is electrically connected to the water pump 75 . When detecting, the quality of the pressure gauge is judged by the readings of the display 66 and the standard gauge 64 compared with the standard gauge 64 alone, so that the judgment is more reasonable, and the situation of judgment error caused by the inaccuracy of the standard gauge 64 is avoided. At the same time, a predetermined value can be set. When the water pressure reaches the predetermined value, the water pressure sensor 65 obtains a signal and transmits it to the controller 67, and the controller 67 controls the water pump 75 to stop pumping water, so that the degree of automation of the device is higher and the operation of personnel is reduced.

In this embodiment, a limit mechanism 8 is also included, specifically, the limit mechanism 8 includes a limit block 81, and a pressure sensor is arranged on the top of the limit block 81, and the pressure sensor and the first motor 51 It is electrically connected with the controller 67. When the pressure gauge rotates into the base 1, when the joint part 4 of the pressure gauge contacts the pressure sensor, the pressure sensor obtains a signal and transmits it to the controller 67, and the controller 67 controls the first motor 51 to stop working, so that the installation of the pressure gauge can be controlled .

The working principle of the present invention: align the lower end of the water pressure gauge with the threaded opening of the base 1, start the first motor 51, the first motor 51 drives the second gear 53 to rotate, and the second gear 53 drives the first gear 52 and the intermediate gear to rotate , the first gear 52 drives the rotor 3 to rotate, and the rotor 3 drives the water pressure gauge to rotate, thereby rotating the water pressure gauge into the base 1. When the joint part 4 of the water pressure gauge contacts the pressure sensor, the pressure sensor obtains a signal and transmits it to the control 67, the controller 67 controls the first motor 51 to stop working, and at this time, the water pump 75 is started, and the water pump 75 pumps the water in the water tank 71 into the detection box 6. When the water pressure reaches a predetermined value, the water pressure sensor 65 obtains a signal transmission To the controller 67, the controller 67 controls the water pump 75 to stop pumping water. At this moment, the first valve 76 and the second valve 78 remain closed to maintain pressure. After 5-10 minutes, observe the reading of the water pressure gauge and the standard gauge 64 and display. 66 readings to judge whether the water pressure gauge is good or bad.

When the air pressure gauge is to be detected, the air pressure gauge is installed in the base 1 the same as the installation steps of the water pressure gauge, and then the second motor 91 is started, and the second motor 91 drives the first bevel gear 93 to rotate, and the first bevel gear 93 drives The second bevel gear 94 rotates, the second bevel gear 94 drives the turntable 96 to rotate, the turntable 96 drives the piston 99 to move up and down through the connecting rod 98, and the gas is rushed into In detection box 6, then carry out pressure maintaining to judge the good or bad situation of barometer.

The present invention has been exemplarily described above in conjunction with the embodiments, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, as long as various insubstantial improvements are adopted in the method concept and technical scheme of the present invention, or without improvement Directly applying the conception and technical solutions of the present invention to other occasions falls within the protection scope of the present invention. The protection scope of the present invention should be determined by the protection scope defined in the claims.

Claims (9)

1. a kind of calibration device for pressure gauge, which is characterized in that including the pedestal for installing pressure gauge, on the outer diameter of the pedestal Equipped with bearing, the outer diameter of the bearing is equipped with rotor, and the rotor is hollow structure, the shape at the top of the hollow structure Matching with the joint component of pressure gauge, the outer surface of the rotor is additionally provided with for providing the driving mechanism of power to rotor, It further include for providing the detection case of hydraulic pressure, the pedestal is mounted on the top of detection case, is additionally provided at the top of the detection case Standard scale is additionally provided with gas supply mechanism on the detection case.

2. a kind of calibration device for pressure gauge according to claim 1, it is characterised in that: the driving mechanism includes the first electricity Machine and the first gear being fixedly connected with rotor outer surface are fixedly installed with second gear in the rotation axis of the first motor, The first gear is connect with the second gear by rack gear V belt translation.

3. a kind of calibration device for pressure gauge according to claim 2, it is characterised in that: if the top of the detection case is equipped with The dry pedestal, the detection case are additionally provided with the first counterbore, and the first motor is arranged in the first counterbore, described in several Pedestal is disposed in parallel in the top of detection case, and intermediate gear is additionally provided between two pedestals, and the intermediate gear rotation connects It connects at the top of detection case, the rack gear band is successively meshed with multiple first gears and intermediate gear, the center tooth For wheel for tightening rack gear band, the bottom of the detection case is additionally provided with inlet and outlet.

4. a kind of calibration device for pressure gauge according to claim 1, it is characterised in that: the gas supply mechanism includes the second electricity Machine, second motor are arranged in the second counterbore that detection case is equipped with, and the rotation axis of second motor is equipped with the first cone Gear, the first bevel gear are engaged with second bevel gear, and the second bevel gear is connected with turntable, the shaft by shaft It is rotatably connected on the top of detection case, the non-central place of the turntable is hinged with connecting rod, and the lower end of the connecting rod is hinged with piston, The piston is slidably connected to the inside of cylinder body, and the cylinder body is fixedly connected on the outer surface of detection case, the surface of the cylinder body It is additionally provided with the first check valve and second one-way valve, first check valve is connected to one end with outside, and the second one-way valve is logical Connecting tube is crossed to connect with detection case.

5. a kind of calibration device for pressure gauge according to claim 1, it is characterised in that: further include water circulation mechanism.

6. a kind of calibration device for pressure gauge according to claim 5, it is characterised in that: the water circulation mechanism includes being used for Store the water tank of water, the top and bottom of the water tank are respectively equipped with water inlet and pump mouth, the water inlet and pump mouth it Between be fixedly connected with first pipe, be serially connected with water pump and the first valve in the first pipe, the water outlet and water inlet it Between be fixedly connected with second pipe, the second valve is serially connected on the second pipe, the top of the water tank is also fixedly connected with Support plate, the detection case are detachably connected on the top of support plate.

7. a kind of calibration device for pressure gauge according to claim 6, it is characterised in that: the surface of the detection case is additionally provided with Hydraulic pressure sensor, the hydraulic pressure sensor are connected with display by conducting wire, and the hydraulic pressure sensor is electrically connected with controller, The controller and water pump are electrically connected.

8. a kind of calibration device for pressure gauge according to claim 7, it is characterised in that: further include position-limit mechanism.

9. a kind of calibration device for pressure gauge according to claim 8, it is characterised in that: the position-limit mechanism includes limit Block, the top of the limited block are equipped with pressure sensor, and the pressure sensor and controller are electrically connected.