Workbench for pressure gauge metrological verification

Abstract

The utility model aims to provide a working table for pressure gauge metrological verification, and relates to the technical field of metrological detection, a fixed cylinder is slidably mounted in a mounting hole of a fixed frame on an operation table, a plurality of vertical rods are arrayed below the fixed frame corresponding to the circumference of the mounting hole, and clamping rods are rotatably mounted on the vertical rods; the pressure gauge is placed in the fixing cylinder to abut against the fixing cylinder to move downwards, the clamping rods below the multiple vertical rods in a circumferential array are pushed to synchronously rotate downwards, get close to the axis of the fixing cylinder and make contact with an inlet pipeline of the pressure gauge, the inlet pipeline is clamped and fixed, and the inlet pipeline of the pressure gauge is aligned with the axis of the fixing cylinder; the success rate of aligning and connecting the inlet pipeline of the pressure gauge and the pressurizing head of the metrological verification equipment is increased; the pedal fixedly connected with the rotating disc is treaded by a foot to drive the pressurizing plate to move upwards to penetrate through the through groove, so that the pressurizing head on the pressurizing plate moves upwards to be in butt joint with the inlet pipeline of the pressure gauge clamped by the clamping assembly, butt joint is convenient, two hands are liberated, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field related to measurement and detection, in particular to a workbench used for measurement and verification of pressure gauges. Background Art

[0002] A pressure gauge is an instrument used to measure the pressure of gas or liquid. It is widely used in industrial production, scientific research experiments and other fields. In order to ensure the accuracy and reliability of the pressure gauge, it needs to be quality inspected. The pressure gauge consists of a disc-shaped dial and a cylindrical tube-shaped inlet pipe. During inspection, the pressure gauge inlet pipe is connected to the booster head of the measurement and inspection equipment to test the accuracy of the pressure gauge.

[0003] The current workbench for calibrating the pressure gauge uses two clamps to clamp the inlet pipe of the pressure gauge from the front and back directions, and cannot well ensure that the pressure gauge is aligned with the booster head of the metrological calibration equipment. The inlet pipe of the pressure gauge is not easy to be placed in the center and is easily deviated to the left and right, resulting in the pressure gauge being unable to be successfully docked with the booster head, affecting the detection of the pressure gauge. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present invention provides the following technical solutions:

[0005] A workbench for metrological verification of a pressure gauge comprises an operating table and metrological verification equipment, a fixing frame is fixedly installed on the operating table, a plurality of mounting holes are provided on the fixing frame, a fixing cylinder is slidably arranged in the mounting hole, an L-shaped limiter is arranged on the fixing frame to limit the sliding of the fixing cylinder, a clamping assembly is provided in the mounting hole, the clamping assembly comprises a clamping rod and vertical rods arranged along the circumference of the outer periphery of the mounting hole, the upper end of the vertical rod is fixedly connected to the fixing frame, the lower end is rotatably connected to one end of the clamping rod, and the clamping rod and the vertical rod are connected at a certain angle by an elastic element, and the clamping rod is rotated downward by the sliding fixing cylinder against the clamping rod to approach the axis of the fixing cylinder;

[0006] The metrological verification equipment includes a boosting device and a boosting plate slidably installed under the operating table, and a rotating disk is rotatably installed under the operating table. A rocker is rotatably installed on the rotating disk at a position deviating from its center, and the other end of the rocker is rotatably connected to the bottom of the boosting plate. By rotating the rotating disk, the rocker is driven to control the sliding of the boosting plate.

[0007] Furthermore, a through groove is provided on the operating table corresponding to the boost plate, and two H-shaped table legs are fixedly arranged on both sides of the lower side of the operating table, and connecting columns are fixedly installed on the table legs. The two sides of the boost plate slide on the connecting columns by setting earrings, and elastic elements are sleeved on the connecting columns and connected to the earrings. A rotating shaft is rotatably installed between the table legs, and there are two rotating disks, both of which are fixedly connected to the rotating shaft, and a pedal is provided between the two rotating disks and fixedly connected to the rotating disk. The rotating disk is rotated by the pedal to drive the rocker to rotate upward, thereby controlling the boost plate to slide upward on the connecting column and pass through the through groove to approach the fixed cylinder below the fixed frame.

[0008] Furthermore, a plurality of boosting heads are arranged on the boosting plate corresponding to the fixed cylinder, and the axis of the boosting head is in a straight line with the axis of the fixed cylinder.

[0009] Furthermore, the length of the clamping rod is greater than or equal to the shortest distance from the rotation connection point of the clamping rod to the axis of the fixing tube.

[0010] Furthermore, the outer wall of the fixed cylinder is linearly arrayed with several limit blocks, and the L-shaped limit piece is installed on the fixed frame along the radial sliding of the fixed cylinder. A sliding groove is provided on the fixed frame corresponding to the L-shaped limit piece, and the L-shaped limit piece slides in the sliding groove. One side of the L-shaped limit piece close to the fixed cylinder is a wedge-shaped structure that cooperates with the limit block, and an elastic element is fixedly installed on the other side and fixedly connected with the sliding groove. Under the action of the elastic element, the L-shaped limit piece always moves toward the limit block on the outer wall of the fixed cylinder and is inserted into the gap between the several limit blocks to limit the sliding of the fixed cylinder.

[0011] Furthermore, the boosting device is fixedly installed below the operating table, the boosting device is connected to the boosting plate through a conduit, and a control button is installed on the operating table to control the operation of the boosting device.

[0012] Furthermore, the clamping assembly has at least four vertical rods.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The utility model slides and installs a fixing cylinder in the installation hole of the fixing frame on the operating table, and a plurality of vertical rods are arranged in a circumferential array corresponding to the installation holes below the fixing frame, and a clamping rod is rotatably installed on the vertical rod. When in use, the pressure gauge is placed in the fixing cylinder and moves downward against the fixing cylinder, and the clamping rods under the plurality of vertical rods in the circumferential array are pushed to rotate downward synchronously, approach the axis of the fixing cylinder, contact the inlet pipe of the pressure gauge, clamp and fix the inlet pipe of the pressure gauge, align the inlet pipe of the pressure gauge with the axis of the fixing cylinder, and increase the success rate of alignment and connection between the inlet pipe of the pressure gauge and the booster head of the measurement and verification equipment;

[0015] 2. The utility model rotatably installs a rotating shaft between the H-shaped table legs under the operating table, and fixes two rotating disks on the rotating shaft, and slides a boosting plate under the through slot of the operating table, and rotatably installs a rocker on the rotating disk, one end of the rocker is rotatably connected with the lower end of the boosting plate. When in use, the rotating disk is driven to rotate by stepping on a pedal fixedly connected to the rotating disk, so that the rocker rotates upward, and the boosting plate is pushed to move upward through the through slot, so that the boosting head on the boosting plate moves upward and docks with the inlet pipe of the pressure gauge clamped by the clamping assembly. The inlet pipe of the pressure gauge and the boosting head can be docked by stepping on the pedal, which is convenient for docking, freeing both hands, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the measurement and verification equipment of the utility model;

[0018] Figure 3 This is a schematic diagram of the fixed cylinder structure of the utility model;

[0019] Figure 4 This is a schematic front cross-sectional view of the fixing frame of the utility model;

[0020] Figure 5 This is an enlarged schematic diagram of the cross-section A of the fixing frame of the utility model;

[0021] Figure 6 It is a side sectional schematic diagram of the fixing frame of the utility model;

[0022] Figure 7 It is an enlarged schematic diagram of the lateral section B of the fixing frame of the utility model.

[0023] In the figure: operating table 1, fixing frame 2, mounting hole 201, sliding slot 202, positioning slot 203, table leg 3, connecting column 4, elastic element 5, metrological verification equipment 6, boosting equipment 601, boosting plate 602, boosting head 6021, earrings 6022, rotating disk 603, rocker 604, pedal 605, rotating shaft 606, control button 7, fixing cylinder 8, limit block 801, positioning strip 802, clamping assembly 9, vertical rod 901, clamping rod 902, clamping block 903, L-shaped limit piece 10. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-7 A workbench for metrological verification of a pressure gauge comprises an operating table 1 and a metrological verification device 6, wherein a fixing frame 2 is fixedly installed on the operating table 1, and a plurality of mounting holes 201 are provided on the fixing frame 2, wherein a fixing cylinder 8 is slidably arranged in the mounting hole 201, and an L-shaped stopper 10 is arranged on the fixing frame 2 to limit the sliding of the fixing cylinder 8, and a clamping assembly 9 is arranged below the mounting hole 201, wherein the clamping assembly 9 comprises a clamping rod 902 and vertical rods 901 arranged along the circumference of the outer periphery of the mounting hole 201, wherein the upper end of the vertical rod 901 is fixedly connected to the fixing frame 2, and the lower end is rotatably connected to one end of the clamping rod 902, and the clamping rod 902 and the vertical rod 901 are connected at a certain angle by an elastic element 5, wherein the angle is less than 90 degrees, and the fixing cylinder 8 is pressed against the clamping rod 902 by sliding down and rotating downward, close to the axis of the fixing cylinder 8;

[0027] In this embodiment, the clamping assembly 9 has at least four vertical rods 901, the length of the clamping rod 902 is greater than or equal to the shortest distance from the rotation connection point of the clamping rod 902 to the axis of the fixed tube 8, the other end of the clamping rod 902 is installed with a clamping block 903, the clamping block 903 is made of silicone, and the elastic element 5 connecting the clamping rod 902 and the vertical rod 901 is an elastic belt;

[0028] In this embodiment, the outer wall of the fixed cylinder 8 is linearly arrayed with a plurality of limit blocks 801, and the L-shaped limit member 10 is slidably installed on the fixed frame 2 along the radial direction of the fixed cylinder 8. A sliding groove 202 is provided on the fixed frame 2 corresponding to the L-shaped limit member 10, and the L-shaped limit member 10 is located in the sliding groove 202 and slides. One side of the L-shaped limit member 10 close to the fixed cylinder 8 is a wedge-shaped structure that cooperates with the limit block 801, and an elastic element 5 is fixedly installed on the other side and is fixedly connected with the sliding groove 202. Under the action of the elastic element 5, the L-shaped limit member 10 always moves toward the limit block 801 on the outer wall of the fixed cylinder 8, and is inserted into the gap between the plurality of limit blocks 801 to limit the sliding of the fixed cylinder 8. The elastic element 5 is compressed by manually sliding the L-shaped limit member 10, so that the L-shaped limit member 10 leaves the gap between the plurality of limit blocks 801, thereby releasing the restriction on the fixed cylinder 8.

[0029] In this embodiment, a positioning strip 802 is disposed on the outer wall of the fixed tube 8, and a positioning groove 203 is disposed on the fixed frame 2 corresponding to the positioning strip 802, and the positioning strip 802 cooperates with the positioning groove 203 to limit the rotation of the fixed tube 8;

[0030] In this embodiment, the fixing cylinder 8 is slidably installed in the mounting hole 201 of the fixing frame 2 on the operating table 1, and a plurality of vertical rods 901 are arranged in a circular array corresponding to the mounting hole 201 below the fixing frame 2, and the clamping rod 902 is rotatably installed on the vertical rod 901. When in use, the pressure gauge is placed in the fixing cylinder 8 and moved downward against the fixing cylinder 8, pushing the clamping rods 902 below the plurality of vertical rods 901 in the circular array to rotate downward synchronously, approaching the axis of the fixing cylinder 8, contacting the inlet pipe of the pressure gauge, clamping and fixing the inlet pipe of the pressure gauge, aligning the inlet pipe of the pressure gauge with the axis of the fixing cylinder 8, and increasing the success rate of aligning and connecting the inlet pipe of the pressure gauge with the booster head of the metrological calibration equipment.

[0031] Embodiment 2:

[0032] See also Figure 1-7 According to Example 1, the metrology and verification equipment 6 includes a boosting device 601 and a boosting plate 602 slidably installed under the operating table 1, and a rotating disk 603 is rotatably installed under the operating table 1, and a rocker 604 is rotatably installed at a position deviated from the center of the rotating disk 603, and the other end of the rocker 604 is rotatably connected to the bottom of the boosting plate 602. By rotating the rotating disk 603, the rocker 604 is driven to control the sliding of the boosting plate 602. A through groove is provided on the operating table 1 corresponding to the boosting plate 602, and two H-shaped table legs 3 are fixedly arranged on both sides of the bottom of the operating table 1, and connecting columns 4 are fixedly installed on the table legs 3. The two sides of the boosting plate 602 are provided with The earring 6022 is sleeved on the connecting column 4 to slide, and an elastic element 5 is sleeved on the connecting column 4 to connect with the earring 6022. A rotating shaft 606 is rotatably installed between the table legs 3. There are two rotating disks 603, and both rotating disks 603 are fixedly connected to the rotating shaft 606. A pedal 605 is arranged between the two rotating disks 603 and is fixedly connected to the rotating disk 603. The rotating disk 603 is rotated by the pedal 605 to drive the rocker 604 to rotate upward, and the booster plate 602 is controlled to slide upward on the connecting column 4, pass through the through slot close to the fixing cylinder 8 below the fixing frame 2, and the pedal 605 is released. Under the action of the elastic element 5, the booster plate 602 moves downward;

[0033] In this embodiment, the boosting device 601 is fixedly installed below the operating table 1, and the boosting device 601 is connected to the boosting plate 602 through a conduit. The operating table 1 is equipped with a control button 7 to control the operation of the boosting device 601. The boosting plate 602 is provided with a plurality of boosting heads 6021 corresponding to the fixed cylinder 8, and the axis of the boosting head 6021 is in a straight line with the axis of the fixed cylinder 8. The boosting device 601, the boosting plate 602 and the boosting head 6021 of the measurement and verification equipment 6 are prior art and are not specifically described in this application.

[0034] In this embodiment, the rotating shaft 606 is rotatably installed between the H-shaped table legs 3 under the operating table 1, and the two rotating disks 603 are fixedly installed on the rotating shaft 606, and the boosting plate 602 is slidably set under the through slot of the operating table 1, and the rocker 604 is rotatably installed on the rotating disk 603, and one end of the rocker 604 is connected to the lower end of the boosting plate 602. When in use, the rotating disk 603 is driven to rotate by stepping on the pedal 605 fixedly connected to the rotating disk 603, so that the rocker 604 rotates upward, and the boosting plate 602 is pushed to move upward through the through slot, so that the boosting head 6021 on the boosting plate 602 moves upward and docks with the inlet pipe of the pressure gauge clamped by the clamping assembly 9. The inlet pipe of the pressure gauge can be docked with the boosting head 6021 by stepping on the pedal 605. The docking is convenient, freeing both hands, saving time and effort.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A workbench for pressure gauge metrological verification, comprising an operating table and metrological verification equipment, wherein a fixing frame is fixedly mounted on the operating table, and a plurality of mounting holes are provided on the fixing frame, wherein: A fixing cylinder is slidably arranged in the mounting hole, and an L-shaped limiter is arranged on the fixing frame to limit the sliding of the fixing cylinder. The mounting hole is provided with a clamping assembly, and the clamping assembly includes a clamping rod and a vertical rod arrayed along the outer circumference of the mounting hole. The upper end of the vertical rod is fixedly connected to the fixing frame, and the lower end is rotatably connected to one end of the clamping rod. The clamping rod and the vertical rod are connected at a certain angle by an elastic element, and the clamping rod is rotated downward by the sliding fixing cylinder against the clamping rod to approach the axis of the fixing cylinder. The metrological verification equipment includes a boosting device and a boosting plate slidably installed under the operating table, and a rotating disk is rotatably installed under the operating table. A rocker is rotatably installed on the rotating disk at a position deviating from its center, and the other end of the rocker is rotatably connected to the bottom of the boosting plate. By rotating the rotating disk, the rocker is driven to control the sliding of the boosting plate.

2. A workbench for pressure gauge measurement and verification according to claim 1, characterized in that: A through slot is provided on the operating table corresponding to the boost plate, and two H-shaped table legs are fixedly arranged on both sides of the lower side of the operating table, and connecting columns are fixedly installed on the table legs. The two sides of the boost plate slide on the connecting columns by setting earrings, and elastic elements are sleeved on the connecting columns to be connected with the earrings. A rotating shaft is rotatably installed between the table legs, and there are two rotating disks, both of which are fixedly connected to the rotating shaft, and a pedal is provided between the two rotating disks and fixedly connected to the rotating disk. The rotating disk is rotated by the pedal to drive the rocker to rotate upward, thereby controlling the boost plate to slide upward on the connecting column and pass through the through slot close to the fixed cylinder below the fixed frame.

3. A workbench for pressure gauge measurement and verification according to claim 1, characterized in that: A plurality of boosting heads are arranged on the boosting plate corresponding to the fixed cylinder, and the axis of the boosting head is in a straight line with the axis of the fixed cylinder.

4. A workbench for pressure gauge measurement and verification according to claim 1, characterized in that: The length of the clamping rod is greater than or equal to the shortest distance from the rotation connection point of the clamping rod to the axis of the fixing cylinder.

5. The workbench for pressure gauge measurement and verification according to claim 1, characterized in that: The outer wall of the fixed cylinder is linearly arrayed with several limit blocks, and the L-shaped limit piece is installed on the fixed frame along the radial sliding of the fixed cylinder. A sliding groove is provided on the fixed frame corresponding to the L-shaped limit piece, and the L-shaped limit piece slides in the sliding groove. One side of the L-shaped limit piece close to the fixed cylinder is a wedge-shaped structure that cooperates with the limit block, and an elastic element is fixedly installed on the other side and fixedly connected with the sliding groove. Under the action of the elastic element, the L-shaped limit piece always moves toward the limit block on the outer wall of the fixed cylinder and is inserted into the gap between the limit blocks to limit the sliding of the fixed cylinder.

6. A workbench for pressure gauge measurement and verification according to claim 1, characterized in that: The boosting device is fixedly installed below the operating table, the boosting device is connected to the boosting plate through a conduit, and a control button is installed on the operating table to control the operation of the boosting device.

7. The workbench for pressure gauge measurement and verification according to claim 1, characterized in that: The clamping assembly has at least four vertical rods.

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