Novel measuring instrument for liquid pressure transmitter

Abstract

The utility model provides a novel measuring instrument for a liquid pressure transmitter. The novel measuring instrument for the liquid pressure transmitter comprises a measuring instrument body, a first connecting pipe and a second connecting pipe are fixedly installed on the top of the measuring instrument body, a high-precision pressure transmitter is installed on the first connecting pipe in a threaded mode, and a to-be-measured pressure transmitter is inserted into the second connecting pipe. A lifting mechanism and a clamping mechanism are arranged on the measuring instrument body; the lifting mechanism comprises a rectangular frame, two fixing plates, two supporting plates, two threaded rods and two driving motors, the rectangular frame is arranged above the measuring instrument body, and the two fixing plates are fixedly installed on the two sides of the measuring instrument body respectively. The novel measuring instrument for the liquid pressure transmitter provided by the utility model has the advantages that the pressure transmitter can be measured and detected, the pressure transmitter can be quickly disassembled and assembled, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure transmitters, and in particular relates to a new measuring instrument for liquid pressure transmitters. Background Art

[0002] A pressure transmitter is a device that converts pressure into pneumatic or electric signals for control and remote transmission. It can convert physical pressure parameters such as gas and liquid sensed by the pressure measuring element sensor into standard electrical signals to supply secondary instruments such as indicator alarms, recorders, regulators, etc. for measurement, indication and process regulation.

[0003] After the pressure transmitter is produced, in order to ensure that the actual measurement error of the pressure transmitter is within the allowable range, the pressure of the liquid can be measured. Therefore, its measurement accuracy needs to be tested.

[0004] However, in the prior art, when testing a pressure transmitter, it is necessary to connect it to a measuring instrument through a threaded interface at the bottom of the pressure transmitter, and tighten it to avoid pressure release. However, this method requires frequent disassembly and assembly of the pressure transmitter to be tested, which can easily damage the interface of the measuring instrument, and the disassembly and assembly is inconvenient, affecting the detection efficiency.

[0005] Therefore, it is necessary to provide a new liquid pressure transmitter to solve the above technical problems with a new measuring instrument. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a new measuring instrument for liquid pressure transmitter which can measure and detect the pressure transmitter and can be quickly disassembled and assembled to improve the detection efficiency.

[0007] In order to solve the above technical problems, the utility model provides a new measuring instrument for a liquid pressure transmitter, comprising: a measuring instrument body, a first pipe and a second pipe are fixedly installed on the top of the measuring instrument body, a high-precision pressure transmitter is threadedly installed on the first pipe, a pressure transmitter to be measured is plugged into the second pipe, and a lifting mechanism and a clamping mechanism are provided on the measuring instrument body;

[0008] The lifting mechanism includes a rectangular frame, two fixed plates, two supporting plates, two threaded rods, and two driving motors. The rectangular frame is arranged above the measuring instrument body. The two fixed plates are respectively fixedly installed on both sides of the measuring instrument body. The two supporting plates are respectively arranged above the two fixed plates. The two threaded rods are respectively rotatably installed on the two supporting plates. The two threaded rods respectively penetrate the two fixed plates and are threadedly connected to the fixed plates. The bottom ends of the two threaded rods are both rotatably connected to the measuring instrument body. The two driving motors are respectively fixedly installed on the tops of the two supporting plates. The output shafts of the two driving motors are respectively fixedly connected to the two threaded rods.

[0009] As a further solution of the utility model, the clamping mechanism includes two push rods, two cylinders, two connecting blocks and two clamping blocks. The two push rods are slidably installed in the rectangular frame, the two cylinders are fixedly installed on the inner walls on both sides of the rectangular frame, the output shafts of the two cylinders are fixedly connected to the two push rods, the two connecting blocks are fixedly installed on the two push rods, and the two clamping blocks are fixedly installed on the two connecting blocks.

[0010] As a further solution of the utility model, two support rods are fixedly installed at the bottom of the two support plates, the bottom ends of the four support rods are fixedly connected to the measuring instrument body, and the four support rods respectively penetrate the two fixed plates and are slidably connected to the fixed plates.

[0011] As a further solution of the utility model, two inserting blocks are fixedly mounted on the corresponding clamping block, and two slots are provided on the corresponding clamping block, and the inserting blocks and the slots are adapted to each other.

[0012] As a further solution of the utility model, a sealing gasket is fixedly installed on the top end of the second connecting pipe, and the top of the sealing gasket is in contact with the pressure transmitter to be measured.

[0013] As a further solution of the utility model, four limiting slide grooves are provided on the rectangular frame, and limiting sliders are slidably installed in the four limiting slide grooves, and one side of the four limiting sliders is fixedly connected to two push rods respectively.

[0014] Compared with the related art, the new measuring instrument for liquid pressure transmitter provided by the utility model has the following beneficial effects:

[0015] 1. The utility model provides a lifting mechanism to enable the rectangular frame to be raised or lowered, so that the pressure transmitter to be tested can be pulled out or inserted into the second pipe, and the pressure transmitter to be tested can be disassembled and assembled;

[0016] 2. The utility model provides a clamping mechanism so that the two clamping blocks can be brought close to each other to clamp and fix the pressure transmitter to be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 A first three-dimensional structural schematic diagram of a new measuring instrument for a liquid pressure transmitter provided by the utility model;

[0019] Figure 2 A second three-dimensional structural schematic diagram of a new measuring instrument for a liquid pressure transmitter provided by the utility model;

[0020] Figure 3 The utility model provides a partial structural schematic diagram of a new measuring instrument for a liquid pressure transmitter.

[0021] In the figure: 1. Measuring instrument body; 2. First connecting pipe; 3. Second connecting pipe; 4. High-precision pressure transmitter; 5. Pressure transmitter to be measured; 6. Rectangular frame; 7. Fixing plate; 8. Support plate; 9. Threaded rod; 10. Drive motor; 11. Push rod; 12. Cylinder; 13. Connecting block; 14. Clamp block; 15. Support rod; 16. Insert block; 17. Slot. DETAILED DESCRIPTION

[0022] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A first three-dimensional structural schematic diagram of a new measuring instrument for a liquid pressure transmitter provided by the utility model; Figure 2 A second three-dimensional structural schematic diagram of a new measuring instrument for a liquid pressure transmitter provided by the utility model; Figure 3 The schematic diagram of the partial structure of the new measuring instrument for liquid pressure transmitter provided by the utility model. The new measuring instrument for liquid pressure transmitter comprises: a measuring instrument body 1, a first pipe 2 and a second pipe 3 are fixedly installed on the top of the measuring instrument body 1, a high-precision pressure transmitter 4 is threadedly installed on the first pipe 2, a pressure transmitter 5 to be measured is plugged into the second pipe 3, and a lifting mechanism and a clamping mechanism are provided on the measuring instrument body 1;

[0023] The lifting mechanism includes a rectangular frame 6, two fixed plates 7, two supporting plates 8, two threaded rods 9, and two driving motors 10. The rectangular frame 6 is arranged above the measuring instrument body 1. The two fixed plates 7 are respectively fixedly installed on both sides of the measuring instrument body 1. The two supporting plates 8 are respectively arranged above the two fixed plates 7. The two threaded rods 9 are respectively rotatably installed on the two supporting plates 8. The two threaded rods 9 respectively penetrate the two fixed plates 7 and are threadedly connected with the fixed plates 7. The bottom ends of the two threaded rods 9 are both rotatably connected with the measuring instrument body 1. The two driving motors 10 are respectively fixedly installed on the tops of the two supporting plates 8. The output shafts of the two driving motors 10 are respectively fixedly connected with the two threaded rods 9.

[0024] like Figure 3 As shown, the clamping mechanism includes two push rods 11, two cylinders 12, two connecting blocks 13 and two clamping blocks 14. The two push rods 11 are slidably mounted in the rectangular frame 6. The two cylinders 12 are fixedly mounted on the inner walls of both sides of the rectangular frame 6. The output shafts of the two cylinders 12 are fixedly connected to the two push rods 11, respectively. The two connecting blocks 13 are fixedly mounted on the two push rods 11, respectively. The two clamping blocks 14 are fixedly mounted on the two connecting blocks 13, respectively.

[0025] By providing the clamping mechanism, the two clamping blocks 14 can be brought close to each other to clamp and fix the pressure transmitter 5 to be measured.

[0026] like Figures 1 to 3 As shown, two support rods 15 are fixedly installed at the bottom of the two support plates 8, and the bottom ends of the four support rods 15 are fixedly connected to the measuring instrument body 1, and the four support rods 15 respectively penetrate the two fixed plates 7 and are slidably connected to the fixed plates 7;

[0027] By providing the support rods 15 , the support plate 8 can be supported and the stability of the fixing plate 7 can be improved.

[0028] like Figure 3 As shown, two inserting blocks 16 are fixedly mounted on the corresponding clamping block 14, and two slots 17 are provided on the corresponding clamping block 14, and the inserting blocks 16 and the slots 17 are adapted to each other;

[0029] By providing the insert block 16 and the slot 17 , after the two clamping blocks 14 are closed, the insert block 16 can be inserted into the slot 17 , thereby improving the stability of the connection between the two clamping blocks 14 .

[0030] like Figure 1 and Figure 2 As shown, a sealing gasket is fixedly installed on the top of the second connecting pipe 3, and the top of the sealing gasket is in contact with the pressure transmitter 5 to be measured;

[0031] By providing the sealing pad, after the pressure transmitter 5 to be measured is inserted into the second connecting pipe 3, the sealing performance can be improved to avoid liquid leakage and inaccurate measurement.

[0032] like Figure 3 As shown, the rectangular frame 6 is provided with four limit slide grooves, and the four limit slide grooves are all slidably installed with limit sliders, and one side of the four limit sliders is fixedly connected to two push rods 11 respectively;

[0033] By providing the limiting sliding groove and the limiting sliding block, the push rod 11 can be limited, and when the rectangular frame 6 moves downward, the push rod 11 moves downward along with the rectangular frame 6 .

[0034] The working principle of the new measuring instrument for liquid pressure transmitter provided by the utility model is as follows:

[0035] Step 1: When in use, screw the high-precision pressure transmitter 4 into the first pipe 2, then place the pressure transmitter 5 to be tested between the two clamping blocks 14, start the two cylinders 12, the cylinders 12 drive the two push rods 11 to approach each other, the push rods 11 drive the connecting block 13 and the clamping block 14 to move, so that the two clamping blocks 14 clamp the pressure transmitter 5 to be tested;

[0036] The second step: two driving motors 10, the driving motor 10 drives the threaded rod 9 to rotate, the threaded rod 9 drives the fixing plate 7 to move downward, and the fixing plate 7 drives the rectangular frame 6 to move downward, so that the pressure transmitter 5 to be tested is moved downward and inserted into the second connecting pipe 3, so that the pressure transmitter 5 to be tested is connected to the second connecting pipe 3. At this time, the measuring instrument body 1 can be started to detect the pressure transmitter 5 to be tested, and then the detection data of the high-precision pressure transmitter 4 and the pressure transmitter 5 to be tested are compared to obtain the error of the pressure transmitter 5 to be tested.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A new measuring instrument for a liquid pressure transmitter, characterized in that: include: A measuring instrument body, wherein a first pipe and a second pipe are fixedly mounted on the top of the measuring instrument body, a high-precision pressure transmitter is threadedly mounted on the first pipe, a pressure transmitter to be measured is plugged into the second pipe, and a lifting mechanism and a clamping mechanism are provided on the measuring instrument body; The lifting mechanism includes a rectangular frame, two fixed plates, two supporting plates, two threaded rods, and two driving motors. The rectangular frame is arranged above the measuring instrument body. The two fixed plates are respectively fixedly installed on both sides of the measuring instrument body. The two supporting plates are respectively arranged above the two fixed plates. The two threaded rods are respectively rotatably installed on the two supporting plates. The two threaded rods respectively penetrate the two fixed plates and are threadedly connected to the fixed plates. The bottom ends of the two threaded rods are both rotatably connected to the measuring instrument body. The two driving motors are respectively fixedly installed on the tops of the two supporting plates. The output shafts of the two driving motors are respectively fixedly connected to the two threaded rods.

2. The new measuring instrument for liquid pressure transmitter according to claim 1 is characterized in that: The clamping mechanism includes two push rods, two cylinders, two connecting blocks and two clamping blocks. The two push rods are slidably installed in the rectangular frame, the two cylinders are fixedly installed on the inner walls on both sides of the rectangular frame, the output shafts of the two cylinders are fixedly connected to the two push rods, the two connecting blocks are fixedly installed on the two push rods, and the two clamping blocks are fixedly installed on the two connecting blocks.

3. The new measuring instrument for liquid pressure transmitter according to claim 1 is characterized in that: Two support rods are fixedly installed at the bottom of the two support plates, the bottom ends of the four support rods are fixedly connected to the measuring instrument body, and the four support rods respectively penetrate the two fixed plates and are slidably connected to the fixed plates.

4. The new measuring instrument for liquid pressure transmitter according to claim 2 is characterized in that: Two inserting blocks are fixedly mounted on the corresponding clamping block, and two slots are provided on the corresponding clamping block, and the inserting blocks and the slots are matched.

5. The new measuring instrument for liquid pressure transmitter according to claim 1 is characterized in that: A sealing gasket is fixedly mounted on the top end of the second connecting pipe, and the top of the sealing gasket is in contact with the pressure transmitter to be measured.

6. The new measuring instrument for liquid pressure transmitter according to claim 1 is characterized in that: The rectangular frame is provided with four limiting slide grooves, and limiting sliders are slidably installed in the four limiting slide grooves, and one side of the four limiting sliders is fixedly connected to two push rods respectively.

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