Instrument verification butt joint tool

Abstract

The utility model relates to an instrument verification butt joint tool. The tool comprises a fixed seat; the mounting platform is arranged on the fixed seat by taking the center of the fixed seat as a reference and is used for being butted with a flange seat of the instrument; the pressure guide hole is formed in the center of the mounting platform and penetrates through the fixed seat; the sealing groove is formed in the mounting platform by taking the center of the mounting platform as a reference and is used for placing a sealing gasket; the pressure guide joint is arranged at the center of the bottom of the fixed seat and is communicated with the pressure guide hole; the adjustable locking device comprises two sliding locking assemblies which are symmetrically arranged on the two opposite side walls of the fixing base. According to the instrument verification butt joint tool, the mounting platform, the pressure guide hole, the sealing groove, the pressure guide connector and the adjustable locking device are arranged on the fixing base, instrument flanges of different specifications can be installed and fixed by being matched with the adjustable locking device within the range of the mounting platform, and the instrument verification butt joint tool is connected with a verification device through the pressure guide connector, so that verification work is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument calibration, in particular to an instrument calibration docking tool. Background Technique

[0002] Single (double) flange transmitters and diaphragm pressure gauges of different specifications, as pressure measurement tools, are widely used in, for example, chemical enterprises, mainly for accurately measuring pressure and liquid level. The accuracy and reliability of these instruments are crucial for ensuring the safety and efficiency of the production process.

[0003] Before the application of existing flange transmitters and diaphragm pressure gauges, it is necessary to calibrate such pressure measurement instruments. However, on general calibration devices, custom - sized docking joints are commonly used (when docking, the flange seat of the flange transmitter or diaphragm pressure gauge is placed on the docking joint). This joint can only be applicable to instruments of the same model and the same size. Moreover, if the existing calibration bench does not have a suitable flange interface, it will be difficult to calibrate and maintain these special - type instruments. At the same time, when using a single - specification flange interface for calibration, it is necessary to replace it according to the flange model of the instrument, which is time - consuming and laborious. Therefore, an instrument calibration docking tool is proposed to solve the above problems. Content of the Utility Model

[0004] The utility model provides an instrument calibration docking tool, which can adjust and adapt pressure measurement instruments such as flange transmitters or diaphragm pressure gauges of different model sizes, without the need to configure a dedicated docking joint, and designs a fixed locking device to strengthen the seal and ensure the sealing strength during calibration.

[0005] The technical solution of the utility model is as follows: an instrument calibration docking tool, comprising:

[0006] A fixed seat, whose shape is a rectangular block;

[0007] An installation platform, which is arranged on it with the center of the fixed seat as the reference, for docking the flange seat of the instrument;

[0008] A pressure - guiding hole, which is arranged at the center of the installation platform and penetrates through the fixed seat;

[0009] A sealing groove, which is arranged on it with the center of the installation platform as the reference, for placing a sealing gasket;

[0010] A pressure - guiding joint, which is arranged at the center of the bottom of the fixed seat and is communicated with the pressure - guiding hole;

[0011] An adjustable locking device, including two sliding locking components symmetrically arranged on two opposite side walls of the fixed seat. Two sliding pressure plates are mounted on the two sliding locking components, for locking the flange seat of the instrument. The two sliding pressure plates slide towards each other and lock through the sliding locking components.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the sliding locking assembly includes a fixing frame fixed on the side wall of the fixing seat, the fixing frame is provided with a sliding groove, two first locking screws are slidably provided through the sliding groove, the top ends of the two first locking screws are respectively connected to the ends of the two sliding pressure plates, and the bottom ends are respectively provided with first locking nuts for locking, and the sliding pressure plates slide on the sliding grooves of the two sliding locking assemblies through the first locking screws at both ends.

[0014] Furthermore, the sliding locking assembly includes a fixed locking frame fixed on the side wall of the fixed seat, the fixed locking frame is provided with two symmetrical first moving grooves, sliding rods are slidably provided in the two first moving grooves, the top ends of the two sliding rods are respectively connected to the ends of the two sliding pressure plates, and the bottoms are provided with first limit plates, the external movable sleeves of the two sliding rods are provided with an interference frame located between the fixed locking frame and the first limit plate, the interference frame is provided with a second moving groove identical to the first moving groove, the middle thread of the fixed locking frame is penetrated by a first locking bolt, and the bottom end of the first locking bolt is provided with a first interference plate.

[0015] Furthermore, a first limiting sliding block is arranged on one side of the abutment frame close to the fixing seat, and a first limiting sliding groove matched with the first limiting sliding block is arranged on the side wall of the fixing seat.

[0016] Furthermore, the first limiting plate is fixed to the bottom of the sliding rod by threaded connection.

[0017] Furthermore, it also includes a fixed locking device arranged vertically with the adjustable locking device.

[0018] Furthermore, the fixed locking device includes a fixed locking assembly arranged on the other two opposite side walls of the fixed seat, and two fixed pressure plates mounted on the fixed locking assembly. The fixed pressure plates are perpendicular to the sliding pressure plates and are respectively located above their two ends, so as to further lock the flange seat of the instrument.

[0019] Furthermore, the fixed locking assembly is composed of four locking mechanisms, two of which form a group and are respectively arranged at both ends of the fixed pressure plate;

[0020] The locking mechanism comprises a fixing block fixed on the side wall of the fixing seat, a second locking screw is telescopically penetrated through the fixing block, the top end of the second locking screw is connected to the fixing pressure plate, and the bottom end is threadedly sleeved with a second locking nut.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0022] 1. The instrument calibration docking tool, by setting an installation platform, a pressure guiding hole, a sealing groove, a pressure guiding joint and an adjustable locking device on a fixed seat, can install and fix instrument flanges of different specifications within the range of the installation platform in cooperation with the adjustable locking device, and connect a calibration device through the pressure guiding joint, thereby completing the calibration work. The structure is simple and the use is convenient.

[0023] 2. The instrument calibration docking tool, by setting a fixed locking device perpendicular to the adjustable locking device on the basis of the locking of the adjustable locking device, can further improve the locking strength and ensure the sealing strength during calibration. Description of the Drawings

[0024] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0025] Figure 2 is a schematic diagram of the connection between the main structure of the present utility model and the first embodiment of the adjustable locking device;

[0026] Figure 3 is a schematic diagram of the connection between the main structure of the present utility model, the first embodiment of the adjustable locking device and the first embodiment of the fixed locking device;

[0027] Figure 4 is a schematic diagram of the connection between the new main structure of the present utility model, the second embodiment of the adjustable locking device and the second embodiment of the fixed locking device;

[0028] Figure 5 is an exploded structural schematic diagram of the second embodiment of the adjustable locking device of the present utility model;

[0029] Figure 6 is an exploded structural schematic diagram of the second embodiment of the fixed locking device of the present utility model;

[0030] Figure 7 is a schematic diagram of the connection relationship between the fixed seat, the first limit sliding groove and the second limit sliding groove of the present utility model;

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 1. Fixed seat; 101. First limit sliding groove; 102. Second limit sliding groove; 2. Installation platform; 3. Pressure guiding hole; 4. Sealing groove; 5. Pressure guiding joint; 6. Adjustable locking device; 601. Sliding locking assembly; 6010. Fixed frame; 6012. Sliding groove; 6013. First locking screw; 6014. First locking nut; 6015. Fixed locking frame; 6016. First moving groove; 6017. Sliding rod; 6018. First limit plate; 6019. Contact frame; 6020. Second moving groove; 6022. First locking bolt; 6023. First contact plate; 6024. First limit slider; 602. Sliding pressure plate; 7. Fixed locking device; 701. Fixed locking assembly; 7010. Fixed block; 7011. Second locking screw; 7012. Second locking nut; 7013. Fixed plate; 7014. Telescopic rod; 7015. Second limit plate; 7016. Locking plate; 7017. Second contact bolt; 7018. Second contact plate; 7019. Second limit slider; 702. Fixed pressure plate. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] As Figure 1-2 shown, a kind of instrument calibration docking tool in this embodiment is mainly used for docking multi-specification diaphragm pressure gauges or flange transmitters. The instrument calibration docking tool includes a fixed seat 1, an installation platform 2, a pressure guiding hole 3, a sealing groove 4, a pressure guiding joint 5, and an adjustable locking device 6.

[0035] Among them, the fixed seat 1 is in the shape of a rectangular block, and the installation platform 2 is arranged on it with the center of the fixed seat 1 as the reference, and is used for docking the flange seat of the instrument. The pressure guiding hole 3 is arranged at the center of the installation platform 2 and penetrates through the fixed seat 1. The sealing groove 4 is arranged on it with the center of the installation platform 2 as the reference and is used for placing the sealing gasket. The pressure guiding joint 5 is arranged at the center of the bottom of the fixed seat 1 and is communicated with the pressure guiding hole 3. The adjustable locking device 6 includes two sliding locking assemblies 601 symmetrically arranged on two opposite side walls of the fixed seat 1. Two sliding pressure plates 602 are mounted on the two sliding locking assemblies 601 and are used for locking the flange seat of the instrument. The two sliding pressure plates 602 can slide towards each other and lock through the sliding locking assemblies 601. By sliding the two sliding pressure plates 602, the distance between them can be adjusted according to the flange diameter of the instrument, and then the flanges of instruments with different diameters can be fixed, achieving the effect of adapting to flange seats of different specifications of instruments.

[0036] It should be noted that the mounting platform 2 is circular and can hold instrument flange seats with a diameter smaller than it. For example, if the fixed seat 1 is a 300*300mm steel plate, the mounting platform 2 is machined by a lathe to form a plane of R=100mm with the pressure-conducting hole 3 as the center, and flange instruments with a diameter of less than 200mm can be fixed thereon for verification. The sealing groove 4 is circular, and the pressure-conducting joint 5 is fixed to the bottom of the fixed seat 1 by welding.

[0037] In the first embodiment of the sliding locking assembly 601, as shown in FIG. Figure 2 As shown, the sliding locking assembly 601 includes a fixing frame 6010 fixed on the side wall of the fixing seat 1, and the fixing frame 6010 can be fixed thereon by welding. A sliding groove 6012 is arranged on the fixing frame 6010, and two first locking screws 6013 are slidably arranged through the sliding groove 6012. The top ends of the two first locking screws 6013 are respectively connected to the ends of the two sliding pressure plates 602, and the bottom ends are threadedly sleeved with first locking nuts 6014 for locking. The sliding pressure plate 602 slides on the sliding grooves 6012 of the two sliding locking assemblies 601 through the first locking screws 6013 at both ends, so as to adjust the distance between the two. After the adjustment is completed, the effect of locking the sliding pressure plate 602 is achieved by rotating the first locking nut 6014 thereon, and then the instrument flange is locked by pressing down the sliding pressure plate 602 to complete the fixation.

[0038] like Figure 4 , 5 7, a second embodiment of the sliding locking assembly 601 is proposed. The sliding locking assembly 601 includes a fixed locking frame 6015 fixed on the side wall of the fixed seat 1. The fixed locking frame 6015 can be fixed by welding. The fixed locking frame 6015 is provided with two symmetrical first moving grooves 6016. Sliding rods 6017 are slidably provided through the two first moving grooves 6016. The top ends of the two sliding rods 6017 are respectively connected to the ends of the two sliding pressure plates 602, and the bottoms are both provided with first limit plates 601. 8, so that the two sliding pressure plates 602 can achieve the effect of adjusting the spacing. The external movable sleeves of the two sliding rods 6017 are equipped with a contact frame 6019 located between the fixed locking frame 6015 and the first limiting plate 6018. The contact frame 6019 is provided with a second movable groove 6020 which is the same as the first movable groove 6016 to avoid affecting the spacing adjustment of the two sliding pressure plates 602. The middle thread of the fixed locking frame 6015 is penetrated by a first locking bolt 6022, and the bottom end of the first locking bolt 6022 is provided with a first contact plate 6023.

[0039] In use, after adjusting the distance between the two sliding pressure plates 602 by sliding them, the first locking bolts 6022 of the two sliding locking assemblies 601 are rotated simultaneously, so that the first contact plates 6023 at the bottoms of the first locking bolts 6022 simultaneously contact the first contact plates 6023 of the two sliding rods 6017 through the contact frames 6019, achieving the effect of pressing down the sliding pressure plates 602 to lock the instrument flange. In this embodiment, the two sliding pressure plates 602 can be locked only by simultaneously rotating the two first locking bolts 6022, improving the locking efficiency.

[0040] Furthermore, a first limit slider 6024 is fixedly provided on one side of the contact frame 6019 close to the fixed seat 1, and a first limit chute 101 adapted to the first limit slider 6024 is provided on the side wall of the fixed seat 1. By sliding the first limit slider 6024 in the first limit chute 101, the effect of linear movement limitation can be achieved, improving its stability.

[0041] The first limit plate 6018 is fixedly connected to the bottom of the sliding rod 6017 by threading, and can be removed to replace the entire sliding pressure plate 602;

[0042] A rubber pad is provided at the bottom of the first contact plate 6023, playing a protective role.

[0043] To further improve the locking strength, as Figure 3 , in this embodiment, a fixed locking device 7 perpendicular to the adjustable locking device 6 is further included;

[0044] The fixed locking device 7 includes fixed locking assemblies 701 provided on the other two opposite side walls of the fixed seat 1, and two fixed pressure plates 702 mounted on the fixed locking assemblies 701. The fixed pressure plates 702 are perpendicular to the sliding pressure plates 602 and are respectively located above both ends thereof, for further locking the flange seat of the instrument. The fixed pressure plates 702 can further lock the locked sliding pressure plates 602, thereby improving the locking strength and ensuring the sealing strength during calibration. At the same time, by arranging the fixed pressure plates 702 at both ends of the sliding pressure plates 602, the installation of the instrument flange can be avoided from being affected.

[0045] In the first embodiment of the fixed locking device 7, the fixed locking assembly 701 is composed of four locking mechanisms. Two locking mechanisms are in a group and are respectively arranged at both ends of the fixed pressure plate 702;

[0046] The locking mechanism includes a fixed block 7010 fixed on the side wall of the fixed seat 1, the fixed block 7010 is fixed by welding, a second locking screw 7011 is telescopically penetrated on the fixed block 7010, a hole is provided on the fixed block 7010 for the second locking screw 7011 to be telescopic, the top end of the second locking screw 7011 is connected to the fixed pressure plate 702, and the bottom end is threadedly sleeved with a second locking nut 7012.

[0047] When in use, by tightening the second locking nut 7012, the fixed pressure plate 702 can be pulled to press the sliding pressure plate 602, thereby achieving further locking.

[0048] In a first embodiment of the fixed locking device 7, as shown in FIG. Figure 4 , 6 As shown in , 7, the fixing locking device 7 includes two telescopic fixing mechanisms respectively arranged on opposite side walls of the fixing seat 1;

[0049] The telescopic fixing mechanism includes a fixing plate 7013 fixed to the side wall of the fixing seat 1 by welding, and telescopic rods 7014 are telescopically penetrated at both ends of the fixing plate 7013, and the tops of the telescopic rods 7014 are respectively connected with two fixed pressure plates 702, and the bottoms are provided with second limit plates 7015, and the outsides of the two telescopic rods 7014 are telescopically sleeved with a locking plate 7016 located between the fixing plate 7013 and the second limit plate 7015, and the fixing plate 7013 and the locking plate 7016 are both provided with holes for the telescopic rods 7014 to be telescoped, and a second interference bolt 7017 is threadedly penetrated in the middle of the fixing plate 7013, and a second interference plate 7018 is provided at the bottom of the second interference bolt 7017.

[0050] When in use, the second interference bolts 7017 of the two telescopic fixing mechanisms can be rotated simultaneously to achieve the effect of tightening the two fixed pressure plates 702, thereby improving the locking efficiency. The specific principle is similar to the second embodiment of the sliding locking assembly 601, so it will not be described in detail here.

[0051] A second limiting slider 7019 is fixedly provided on one side of the locking plate 7016 close to the fixed seat 1, and a second limiting groove 102 adapted to the second limiting slider 7019 is provided on the side wall of the fixed seat 1. By sliding the second limiting slider 7019 in the second limiting groove 102, a linear movement limiting effect can be achieved, thereby improving its stability.

[0052] In addition, rubber pads are provided at the bottom of the fixed pressure plate 702 and the sliding pressure plate 602 to provide protection.

[0053] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. An instrument verification docking tool, used for docking diaphragm pressure gauges or flange transmitters of multiple specifications, characterized in that: include: Fixed seat (1); A mounting platform (2) is arranged on the fixing seat (1) with the center thereof as a reference and is used for docking with a flange seat of an instrument; A pressure-conducting hole (3) is arranged at the center of the mounting platform (2) and passes through the fixing seat (1); A sealing groove (4) is arranged on the mounting platform (2) with the center of the mounting platform (2) as a reference and is used for placing a sealing gasket; A pressure-conducting joint (5) is arranged at the center of the bottom of the fixing seat (1) and is connected to the pressure-conducting hole (3); The adjustable locking device (6) comprises two sliding locking assemblies (601) symmetrically arranged on two opposite side walls of the fixing seat (1), two sliding pressure plates (602) are mounted on the two sliding locking assemblies (601) for locking the flange seat of the instrument, and the two sliding pressure plates (602) slide towards each other and are locked through the sliding locking assemblies (601).

2. The instrument verification docking tool according to claim 1, characterized in that: The sliding locking assembly (601) comprises a fixing frame (6010) fixed on the side wall of the fixing seat (1), the fixing frame (6010) being provided with a sliding groove (6012), two first locking screws (6013) being slidably provided through the sliding groove (6012), the top ends of the two first locking screws (6013) being respectively connected to the ends of the two sliding pressure plates (602), and the bottom ends of the two first locking nuts (6014) for locking are both provided, and the sliding pressure plates (602) slide on the sliding grooves (6012) of the two sliding locking assemblies (601) through the first locking screws (6013) at both ends.

3. The instrument verification docking tool according to claim 1, characterized in that: The sliding locking assembly (601) comprises a fixed locking frame (6015) fixedly mounted on the side wall of the fixed seat (1), the fixed locking frame (6015) being provided with two symmetrical first moving grooves (6016), a sliding rod (6017) being slidably arranged through the two first moving grooves (6016), the top ends of the two sliding rods (6017) being respectively connected to the ends of the two sliding pressure plates (602), and the bottom ends of the two sliding rods (6017) being provided with a first limiting plate (6018) The outer movable sleeves of the two sliding rods (6017) are provided with a contact frame (6019) located between the fixed locking frame (6015) and the first limiting plate (6018), and the contact frame (6019) is provided with a second movable groove (6020) identical to the first movable groove (6016), and a first locking bolt (6022) is threadedly penetrated through the middle of the fixed locking frame (6015), and a first contact plate (6023) is provided at the bottom end of the first locking bolt (6022).

4. The instrument verification docking tool according to claim 3, characterized in that: A first limiting slide block (6024) is arranged on one side of the abutment frame (6019) close to the fixed seat (1), and a first limiting slide groove (101) adapted to the first limiting slide block (6024) is arranged on the side wall of the fixed seat (1).

5. The instrument verification docking tool according to claim 3, characterized in that: The first limiting plate (6018) is fixed to the bottom of the sliding rod (6017) by means of a threaded connection.

6. An instrument verification docking tool according to any one of claims 1 to 5, characterized in that: It also includes a fixed locking device (7) arranged vertically with the adjustable locking device (6).

7. The instrument verification docking tool according to claim 6, characterized in that: The fixed locking device (7) comprises a fixed locking assembly (701) arranged on the other two opposite side walls of the fixed seat (1), and two fixed pressure plates (702) mounted on the fixed locking assembly (701), wherein the fixed pressure plates (702) are perpendicular to the sliding pressure plate (602) and are respectively located above the two ends thereof, so as to further lock the flange seat of the instrument.

8. The instrument verification docking tool according to claim 7, characterized in that: The fixed locking assembly (701) is composed of four locking mechanisms, two of which form a group and are respectively arranged at two ends of the fixed pressing plate (702); The locking mechanism comprises a fixing block (7010) fixed on the side wall of the fixing seat (1), a second locking screw (7011) is telescopically penetrated through the fixing block (7010), the top end of the second locking screw (7011) is connected to the fixing pressure plate (702), and the bottom end is threadedly sleeved with a second locking nut (7012).

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