Chemical pressure instrument calibration equipment

Abstract

The utility model provides chemical pressure instrument calibration equipment, which relates to the technical field of chemical instrument detection, and comprises a calibration main body, a group of uniformly distributed drainage sleeves are arranged above the calibration main body, a liquid storage cup is arranged above the calibration main body, a stop valve is arranged in the middle of the liquid storage cup, and a check valve is arranged on the check main body. A sealing ring and a first threaded rod are installed above the drainage sleeve. A first threaded rod and a lifting frame are arranged to control a set of clamped pressure instruments to move up and down at the same time, after the pressure instruments move downwards, the bottoms of the pressure instruments can effectively extend into a drainage sleeve and a sealing ring, and at the moment, the sealing ring has a good sealing effect; the checking main body and the pressure instrument can quickly form a pressure checking loop, and the problem that in the prior art, the pressure instrument is sequentially matched with threads to be installed is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical industry instrument detection technical field especially relates to a chemical pressure instrument check out test equipment. BACKGROUND

[0002] In the chemical production field, pressure instrument as the key equipment of guaranteeing production safety and product quality, its accuracy is very important, therefore, to the chemical pressure instrument, efficient, accurate check is the important task in the production link of chemical enterprise, at present, pressure instrument check will be assisted by chemical pressure instrument check out test equipment, however, the existing chemical pressure instrument check out test equipment has many problems as follows:

[0003] Firstly, the conventional chemical pressure instrument check out test equipment installs pressure instrument, and the prior art basically adopts the mode of threaded connection and installs one by one, and each time that pressure instrument is installed and disassembled needs to spend a lot of time to tighten and loosen the thread operation, especially when batch checking, frequent threaded installation and disassembly greatly reduce the checking efficiency, lead to complicated operation and low efficiency, seriously affect the overall progress of the checking work;

[0004] Secondly, threaded connection can also cause damage to the thread due to improper operation, affecting the service life of the pressure instrument and the check out test equipment, and in the checking process, part of the pressure instrument can also appear the phenomenon of displacement due to unstable installation, affecting the accuracy of the checking result. CONTENT OF THE UTILITY MODEL

[0005] The utility model relates to a kind of chemical pressure instrument check out test equipment, and operator places pressure instrument between first clamping block and second clamping block, rotates second threaded rod, and makes pressing frame move downwards, and first clamping block, second clamping block tightly clamps pressure instrument, by rotating first threaded rod, control lifting frame moves downwards, and pressure instrument bottom is completely extended to drainage sleeve, sealing ring inside, and pressure test loop is established between check main body and pressure instrument.

[0006] The utility model provides a kind of chemical pressure instrument check out test equipment, specifically includes: check main body, the upper portion of check main body is equipped with a set of evenly distributed drainage sleeve, check main body's upper portion position installs one liquid storage cup, the middle position of liquid storage cup installs one stop valve, the upper portion position of drainage sleeve installs one sealing ring, one first threaded rod, check main body's upper portion position installs one first positioning rod, the outer side position of first positioning rod installs one lifting frame, the side of lifting frame is equipped with a set of evenly distributed first clamping block, a set of positioning plate, first clamping block and positioning plate between install one second clamping block, first clamping block, second clamping block between install one pressure instrument.

[0007] Further, a stepped groove is formed on the inner side of the drainage sleeve, a stepped groove is formed on the bottom of the sealing ring, a group of sealing grooves are formed on the upper side of the sealing ring, the sealing grooves are circular ring structures, and a buffer groove is formed on the outer side of the sealing ring, the buffer groove is a circular ring structure with a chamfer.

[0008] Further, the bottom of the pressure gauge is aligned with the drainage sleeve and the sealing ring.

[0009] Further, a positioning groove is formed on the upper side of one side of the calibration body, the positioning groove is a cylindrical structure, and the bottom of the first positioning rod is installed in the interior of the positioning groove.

[0010] Further, a sliding hole is formed on one side of the lifting frame, the first positioning rod passes through the interior of the sliding hole, a nut is installed on one side of the lifting frame, a rotating groove is formed on the upper side of the calibration body, the first threaded rod is rotationally connected through the interior of the nut and the rotating groove, the first threaded rod is screw-connected with the nut, and the first threaded rod, the lifting frame and the threaded connecting plate cooperatively form a lifting mechanism.

[0011] Further, a horizontal sliding hole is formed on the positioning plate on one side of the lifting frame, a clamping groove is formed on the inner side of each of the first clamping block and the second clamping block, the clamping grooves are V-shaped structures, an integral threaded connecting plate is arranged on the upper side of the lifting frame, a vertical threaded hole is formed on the upper side of the threaded connecting plate, a screw-connected second threaded rod passes through the interior of the threaded hole, a pressing frame is installed at the bottom of the second threaded rod, and the second threaded rod is rotationally connected with the pressing frame at the middle position, the first clamping block, the second clamping block, the second positioning rod, the second threaded rod and the pressing frame cooperatively form a clamping mechanism.

[0012] Further, a horizontal second positioning rod is arranged on one side of the second clamping block, the second positioning rod passes through the interior of the sliding hole, a supporting spring and a positioning clasp are installed at the outer side of the second positioning rod, an inclined surface is arranged on the upper side of the second clamping block, and a group of inclined surfaces in the same direction are formed on the bottom of the pressing frame.

[0013] The chemical pressure gauge calibration device has the following beneficial effects:

[0014] In the utility model, the first clamping block, the second clamping block, the second positioning rod, the second threaded rod and the pressing frame can simultaneously clamp a group of pressure gauges quickly, the clamping efficiency of the pressure gauges is improved, the uniformity of the clamping force is ensured, and a group of pressure gauges can be kept stable during calibration.

[0015] Specifically, the operator can control the up-down movement of the pressing frame after the second threaded rod is rotated in the forward and reverse directions, so as to complete the clamping and loosening steps of the pressure instrument.

[0016] The first threaded rod and the lifting frame control the simultaneous up-down movement of a group of pressure instruments clamped, and when the pressure instruments move downward, the bottom part can effectively extend to the inside of the drainage sleeve and the sealing ring, so that the sealing ring has a good sealing effect, so that the verification main body and the pressure instrument can quickly form a pressure test loop, solving the problem of sequentially installing the pressure instrument in the prior art.

[0017] The V-shaped clamping grooves of the first clamping block and the second clamping block can adapt to pressure instruments of different shapes and sizes, facilitate verification of different types of pressure instruments, and improve the versatility of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present application, and are not a limitation on the present application.

[0020] In the drawings:

[0021] Figure 1 The axial side structure schematic diagram of the verification equipment and the pressure instrument assembly of the present application is shown;

[0022] Figure 2 The axial side structure schematic diagram of the verification equipment and the pressure instrument assembly of the present application is shown; Figure 1

[0023] Figure 3 The axial side structure schematic diagram of the verification equipment and the pressure instrument assembly of the present application is shown;

[0024] Figure 4 The axial side structure schematic diagram of the verification equipment and the pressure instrument assembly of the present application is shown; Figure 3

[0025] Figure 5 The axial side structure schematic diagram of the verification equipment and the pressure instrument assembly of the present application is shown;

[0026] Figure 6 The axial side structure schematic diagram of the verification equipment and the pressure instrument assembly of the present application is shown;

[0027] Figure 7 The axial side structure schematic diagram of the verification equipment and the pressure instrument assembly of the present application is shown;​​

[0028] Figure 8 The utility model discloses a Figure 1 The enlarged structural schematic diagram of A place of

[0029] List of reference signs

[0030] 1, check main body;101, drainage sleeve;

[0031] 2, sealing ring;

[0032] 3, first positioning rod;

[0033] 4, lifting mechanism;401, first threaded rod;402, lifting frame;403, threaded connection plate;

[0034] 5, clamping mechanism;501, first clamping block;502, second clamping block;503, second positioning rod;504, second threaded rod;505, pressing frame;

[0035] 6, pressure instrument. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme of the utility model embodiment will be clearly and completely described below in combination with the drawings of the utility model embodiment. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the described embodiment of the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0037] Embodiment one: please refer to Figures 1 to 8 :

[0038] The utility model provides a kind of chemical pressure instrument checking equipment, comprising: checking main body 1, the upper of checking main body 1 is equipped with a group of evenly distributed drainage sleeve 101, operator needs to connect the drainage sleeve 101 and the checking channel inside checking main body 1, this step needs to refer to the conventional step of pressure instrument 6 pressure checking in prior art, install a liquid storage cup in the upper position of checking main body 1, install a stop valve in the middle position of liquid storage cup, checking main body 1, liquid storage cup, stop valve directly select the model and structure commonly used in prior art chemical pressure instrument 6 checking, install a sealing ring 2, a first threaded rod 401 in the upper position of drainage sleeve 101, a ladder groove is set in the inner side position of drainage sleeve 101, a ladder groove is also set in the outer side surface in the bottom position of sealing ring 2, when sealing ring 2 is installed, cooperate ladder groove to realize the effect that installation position is stable, a group of sealing grooves is set in the upper position of sealing ring 2, sealing groove is circular ring structure, a buffer groove is set in the outer side surface of sealing ring 2, and buffer groove is circular ring structure with chamfered corner;

[0039] In the embodiment, a first positioning rod 3 is installed in the upper position of the checking main body 1, a positioning groove is formed in the upper position of one side of the checking main body 1, the positioning groove is a cylindrical structure, the bottom of the first positioning rod 3 is installed inside the positioning groove, the positioning groove realizes the effect of positioning the installation position of the first positioning rod 3, a lifting frame 402 is installed in the outer side position of the first positioning rod 3, a sliding hole is formed in one side of the lifting frame 402, the first positioning rod 3 passes through the inside of the sliding hole, a nut is installed on one side of the lifting frame 402, the operator assembles the nut and the lifting frame 402 stably according to the welding steps in the prior art, a rotating groove is formed in the upper position of the checking main body 1, the operator realizes the effect of positioning the first threaded rod 401 up and down according to the rotating positioning structure in the prior art, so that the first threaded rod 401 can rotate stably in place, the first threaded rod 401 is rotatably connected through the inside of the nut and the rotating groove, the first threaded rod 401 is threadedly connected with the nut, the first threaded rod 401, the lifting frame 402 and the threaded connection plate 403 cooperatively constitute a lifting mechanism 4, the pitch of the first threaded rod 401 and the nut is processed according to actual needs in the prior art, the first positioning rod 3 cooperates with the first threaded rod 401 to realize the effect of circumferential and transverse positioning of the lifting frame 402, so that the operator can control the lifting frame 402 to move up and down stably after rotating the first threaded rod 401 in forward and reverse directions;

[0040] In the embodiment, one side of the lifting frame 402 is provided with a set of uniformly distributed first clamping blocks 501, a set of positioning plates, a second clamping block 502 is installed between the first clamping block 501 and the positioning plate, a pressure instrument 6 is installed between the first clamping block 501 and the second clamping block 502, a horizontal sliding hole is formed in the middle position of the positioning plate on one side of the lifting frame 402, a clamping groove is formed in the inner side surface of the first clamping block 501 and the second clamping block 502 respectively, the clamping groove is a V-shaped structure, an integral threaded connection plate 403 is arranged at the upper position of the lifting frame 402, a vertical threaded hole is formed at the upper position of the threaded connection plate 403, a threaded second screw rod 504 penetrates through the inside of the threaded hole, the pitch of the second screw rod 504 and the threaded hole is processed according to actual needs with reference to the prior art, a pressing frame 505 is installed at the bottom position of the second screw rod 504, the second screw rod 504 and the pressing frame 505 are rotationally connected at the middle position, the first clamping block 501, the second clamping block 502, the second positioning rod 503, the second screw rod 504 and the pressing frame 505 cooperatively constitute a clamping mechanism 5, an operator realizes the up-down positioning effect of the rotating position of the second screw rod 504 with reference to the rotating positioning structure in the prior art, and after the operator reversibly rotates the second screw rod 504, the pressing frame 505 can be controlled to move up and down to complete the clamping and loosening steps of the pressure instrument 6. This structural design provides a reliable mechanical transmission mode for the clamping and loosening operation of the pressure instrument 6, conveniently and quickly realizes the fixing and dismounting of the pressure instrument 6, and improves the efficiency of the verification work.

[0041] In the embodiment, one side of the second clamping block 502 is provided with a horizontal second positioning rod 503, the second positioning rod 503 penetrates through the inside of the sliding hole, a supporting spring and a positioning snap spring are installed at the outer side position of the second positioning rod 503, the snap spring positions one side of the supporting spring, so that the supporting spring can stretch and reset the second clamping block 502 to one side, an inclined surface is arranged at the upper position of the second clamping block 502, a set of inclined surfaces with the same direction are formed at the bottom position of the pressing frame 505, the pressing frame 505 and the upper inclined surface of the second clamping block 502 are cooperatively and ingeniously designed, when the pressing frame 505 moves downward, through the interaction of the inclined surfaces, a set of second clamping blocks 502 can be simultaneously pressed inward, so that the second clamping block 502 moves toward the first clamping block 501, thereby realizing the rapid and stable clamping of a set of pressure instruments 6. This structural design not only improves the clamping efficiency of the pressure instrument 6, but also ensures the uniformity of the clamping force, so that a set of pressure instruments 6 remain stable during the verification process, the bottom of the pressure instrument 6 is aligned with the drainage sleeve 101 and the sealing ring 2, and after the pressure instrument 6 moves downward, the bottom can effectively extend to the inside of the drainage sleeve 101 and the sealing ring 2. At this time, the sealing ring 2 plays a good sealing effect, so that the verification main body 1 and the pressure instrument 6 can quickly form a pressure verification loop.

[0042] In the second embodiment, on the basis of the first embodiment, referring to Figures 1 to 8 As shown in the figure, the number of the drainage sleeve 101, the lifting mechanism 4 and the clamping mechanism 5 can be increased as needed, and the number of the drainage sleeve 101, the lifting mechanism 4 and the clamping mechanism 5 can increase the number of pressure instrument 6 calibration.

[0043] The working principle of the embodiment is as follows:

[0044] The operator selects the calibration main body 1 commonly used for calibration of the chemical pressure instrument 6 in the prior art, installs the sealing ring 2 above the drainage sleeve 101, installs the first positioning rod 3 in the positioning groove above the one side of the calibration main body 1, and installs the first threaded rod 401, the lifting frame 402, the threaded connecting plate 403, the second clamping block 502, the second threaded rod 504 and the pressing frame 505 in sequence above the calibration main body 1 according to the above specific installation steps;

[0045] The operator places the pressure instrument 6 between the first clamping block 501 and the second clamping block 502, aligns the center of the pressure instrument 6 with the center of the drainage sleeve 101 and the sealing ring 2, rotates the second threaded rod 504 to move the pressing frame 505 downward, and interacts the inclined surface at the bottom of the pressing frame 505 with the inclined surface above the second clamping block 502 to press the second clamping block 502 inward until the first clamping block 501 and the second clamping block 502 tightly clamp the pressure instrument 6;

[0046] By rotating the first threaded rod 401, the lifting frame 402 is controlled to move downward, and when the bottom of the pressure instrument 6 contacts the sealing ring 2, the first threaded rod 401 is continuously rotated to ensure that the bottom of the pressure instrument 6 completely extends to the inside of the drainage sleeve 101 and the sealing ring 2. At this time, the sealing ring 2 forms a good seal, and a pressure test loop is established between the calibration main body 1 and the pressure instrument 6;

[0047] The operator opens the stop valve of the liquid storage cup according to the conventional operation steps, and makes the calibration medium in the liquid storage cup flow into the calibration main body 1 and then into the pressure test loop to prepare a pressure source for calibration work;

[0048] According to the standard process and requirements of the calibration of the chemical pressure instrument 6, the calibration main body 1 is operated to calibrate the pressure instrument 6. In the calibration process, the display value of the pressure instrument 6 and the related parameters of the calibration main body 1 are closely observed to determine whether the pressure instrument 6 is working normally, and the calibration data is recorded;

[0049] After the pressure gauge 6 is calibrated, the first threaded rod 401 is rotated reversely, the lifting frame 402 is moved upward, the pressure gauge 6 is moved out of the drainage sleeve 101 and the sealing ring 2, the second threaded rod 504 is rotated reversely, the pressing frame 505 is moved upward, the second clamping block 502 is moved to one side under the action of the supporting spring, the clamping of the pressure gauge 6 is released, and the pressure gauge 6 is taken out.

Claims

1. A chemical pressure instrument calibration device, comprising: The test body (1), lifting mechanism (4) and first clamping block (501) are provided. A set of evenly distributed drainage sleeves (101) are provided above the test body (1). A liquid storage cup is installed above the test body (1). A shut-off valve is installed in the middle of the liquid storage cup. The test body (1) is characterized by a sealing ring (2) and a first threaded rod (401) being installed above the drainage sleeve (101). A first positioning rod (3) is installed above the test body (1). A lifting frame (402) is installed on the outer side of the first positioning rod (3). The first threaded rod (401), the lifting frame (402) and the threaded connecting plate (403) cooperate with each other to form the lifting mechanism (4). A set of evenly distributed first clamping blocks (501) and a set of positioning plates are provided on one side of the lifting frame (402). A second clamping block (502) is installed between the first clamping block (501) and the positioning plate. A pressure gauge (6) is installed between the first clamping block (501) and the second clamping block (502).

2. The chemical pressure instrument calibration equipment according to claim 1, characterized in that, A stepped groove is provided on the inner side of the drainage sleeve (101), a stepped groove is also provided on the outer side of the bottom of the sealing ring (2), a set of sealing grooves is provided on the upper side of the sealing ring (2), and a buffer groove is provided on the outer side of the sealing ring (2).

3. The chemical pressure instrument calibration equipment according to claim 1, characterized in that, The bottom of the pressure gauge (6) is aligned with the drain sleeve (101) and the sealing ring (2).

4. The chemical pressure instrument calibration equipment according to claim 1, characterized in that, A positioning groove is opened on one side of the verification body (1) at the upper position, and the bottom of the first positioning rod (3) is installed inside the positioning groove.

5. The chemical pressure instrument calibration equipment according to claim 1, characterized in that, A sliding hole is opened on one side of the lifting frame (402), the first positioning rod (3) passes through the inside of the sliding hole, a nut is installed on one side of the lifting frame (402), a rotating groove is opened at the upper position of the verification body (1), the first threaded rod (401) passes through the inside of the nut and rotates to connect with the rotating groove, and the first threaded rod (401) and the nut are threadedly connected.

6. The chemical pressure instrument calibration equipment according to claim 1, characterized in that, The positioning plate on one side of the lifting frame (402) has a horizontal sliding hole in the middle. The inner sides of the first clamping block (501) and the second clamping block (502) are respectively provided with a clamping groove. The upper part of the lifting frame (402) is provided with an integral threaded connecting plate (403). The upper part of the threaded connecting plate (403) is provided with a vertical threaded hole. A threaded second threaded rod (504) passes through the inside of the threaded hole. A pressing frame (505) is installed at the bottom of the second threaded rod (504). The second threaded rod (504) and the pressing frame (505) are rotatably connected at the middle position. The first clamping block (501), the second clamping block (502), the second positioning rod (503), the second threaded rod (504), and the pressing frame (505) cooperate with each other to form a clamping mechanism (5).

7. The chemical pressure instrument calibration equipment according to claim 1, characterized in that, The second clamping block (502) has a horizontal second positioning rod (503) on one side. The second positioning rod (503) passes through the interior of the sliding hole. A support spring and a positioning snap ring are installed on the outer side of the second positioning rod (503). An inclined surface is provided on the upper part of the second clamping block (502). A set of inclined surfaces with the same direction are opened at the bottom of the pressing frame (505).

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