Pressure transmitter testing device

Abstract

The utility model discloses a pressure transmitter testing device, which comprises a bearing platform, the upper part of the bearing platform is respectively provided with a mounting seat used for communicating a conveying pipeline and a circulation pipeline, the middle part of the upper surface of the mounting seat is provided with a sliding groove, a sliding block is movably arranged in the sliding groove, and a conveying channel is arranged in the sliding block. A mounting through hole communicated with the conveying channel is formed in the upper end of the sliding block, a quick connection mechanism used for being connected with a threaded connector of the pressure transmitter is inserted into the mounting through hole, a plunger hole opposite to the conveying channel is formed in the middle of one side of the mounting base, a plunger plate is arranged in the plunger hole in a sliding mode, and a push-pull rod is arranged at one end of the plunger plate; a liquid drainage channel opposite to the plunger hole is formed in the lower portion of the installation base, and a liquid guide pipe communicated with the recycling box is arranged at the outlet end of the liquid drainage channel. According to the utility model, the pressure transmitter can be quickly mounted or dismounted through the arranged quick connection mechanism, and the test efficiency of the pressure transmitter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitter testing, in particular to a pressure transmitter testing device. Background Art

[0002] A pressure transmitter is a device that converts pressure into pneumatic or electric signals for control and remote transmission. It is widely used in various industrial automatic control environments. Performance testing is required before pressure transmitters enter the market.

[0003] The patent with announcement number CN219319662U discloses a pressure transmitter test device, including a base, a bearing platform is arranged directly above the base, and an infusion box, a gas tank, a test component, a control component and a recovery box are arranged on the bearing platform from left to right, wherein the infusion box, the test component, the control component and the recovery box are located on the same central axis, the gas tank is located at the rear side of the top of the bearing platform, and a delivery pipeline is provided between the infusion box, the test component, the control component and the recovery box for communication, and a circulation pipeline is provided between the gas tank, the test component and the control component for circulation, and an infusion pipe is provided at the rear center of the infusion box, and a gas pipe is provided at the rear center of the gas tank. However, there are still some shortcomings, such as the pipeline and the test component and the control component are respectively connected by thread, so that the test component and the control component cannot be quickly installed or replaced, thereby reducing the test efficiency of the pressure transmitter, and it is not suitable for large-scale testing work after the factory is produced. Utility Model Content

[0004] The purpose of the utility model is to provide a pressure transmitter testing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure transmitter testing device, including a supporting platform, the upper part of the supporting platform is respectively provided with a mounting seat for connecting the delivery pipe and the circulating pipe, the middle part of the upper surface of the mounting seat is provided with a slide groove, a slider is movably provided in the slide groove, a delivery channel is provided in the slider, and a mounting through hole connected to the delivery channel is provided at the upper end of the slider, a quick connection mechanism for connecting the threaded interface of the pressure transmitter is inserted in the mounting through hole, a plunger hole opposite to the delivery channel is provided in the middle part of one side of the mounting seat, a plunger plate is slidably provided in the plunger hole, a push-pull rod is provided at one end of the plunger plate, the outer side of the push-pull rod is provided with a limit sleeve fixedly connected to the slider, a drainage channel opposite to the plunger hole is provided at the lower part of the mounting seat, and a liquid guide tube connected to a recovery box is provided at the outlet end of the drainage channel.

[0006] Preferably, the quick-connect mechanism includes a stepped socket, a rubber sealing gasket, a threaded sleeve, a U-shaped pressure plate and a card plate, a stepped socket is inserted in the mounting through hole, and a rubber sealing gasket is arranged in the stepped socket, a threaded sleeve for connecting the threaded interface of the pressure transmitter is arranged above the rubber sealing gasket, a U-shaped pressure plate for pressing down the threaded sleeve is rotatably arranged on the upper part of the mounting seat, and a card plate is rotatably arranged at one end of the U-shaped pressure plate away from the mounting seat, and a card groove matching the card plate is opened on one side of the mounting seat.

[0007] Preferably, the threaded sleeve is composed of two arc-shaped clips and a positioning pin, one end of the arc-shaped clip is provided with a positioning pin, and the other end of the arc-shaped clip is provided with a positioning hole matching the positioning pin.

[0008] Preferably, both left and right ends of the conveying channel are provided with receiving grooves, corrugated spring washers are arranged in the receiving grooves, and a connecting guide sleeve is inserted in the corrugated spring washers.

[0009] Preferably, a mounting hole is provided in the limiting sleeve, a tightening spring is provided in the mounting hole, a positioning steel ball is provided at the outer end of the tightening spring, and a positioning groove matching the positioning steel ball is provided on one side of the push-pull rod.

[0010] Compared with the prior art, the utility model provides a pressure transmitter testing device, which has the following beneficial effects: the utility model can quickly install or disassemble the pressure transmitter through the quick-connect mechanism, thereby improving the testing efficiency of the pressure transmitter, and by adopting a movable connection between the slider and the mounting seat, the pressure transmitter can be quickly switched between gas and liquid tests. At the same time, through the provided plunger plate and drainage channel, the residual liquid in the delivery channel can be cleared, thereby avoiding the interference of the residual liquid in the delivery channel with the gas test of the pressure transmitter after the liquid test is switched to the gas test. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a partial front view of the utility model;

[0012] Figure 2 It is a partial front cross-sectional view of the utility model;

[0013] Figure 3 It is a top view of the utility model;

[0014] Figure 4 for Figure 2 The enlarged structural diagram of part A in the middle;

[0015] Figure 5 for Figure 2 The enlarged structural diagram of part B in the middle;

[0016] Figure 6It is a three-dimensional diagram of the threaded sleeve in the utility model.

[0017] In the figure: 1. mounting seat; 100. slide groove; 101. plunger hole; 102. drainage channel; 2. slider; 200. delivery channel; 201. mounting through hole; 3. quick-connect mechanism; 30. stepped sleeve; 31. rubber sealing gasket; 32. threaded sleeve; 320. arc-shaped clip; 321. positioning pin; 33. U-shaped pressure plate; 34. clamping plate; 4. plunger plate; 5. push-pull rod; 6. limit sleeve; 7. liquid guide tube; 8. corrugated spring washer; 9. connecting guide sleeve; 10. tightening spring; 11. positioning steel ball. DETAILED DESCRIPTION

[0018] 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 in 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.

[0019] See also Figure 1-6 The utility model provides an embodiment of a pressure transmitter testing device: a pressure transmitter testing device, including a bearing platform, the upper part of the bearing platform is respectively provided with a mounting seat 1 for connecting a conveying pipeline and a circulating pipeline, a slide groove 100 is opened in the middle of the upper surface of the mounting seat 1, a slider 2 is movably arranged in the slide groove 100, and a conveying channel 200 is opened in the slider 2. By adopting a movable connection between the slider and the mounting seat, the pressure transmitter can quickly switch between gas and liquid tests.

[0020] A mounting through hole 201 connected to the conveying channel 200 is provided at the upper end of the slider 2, a stepped sleeve 30 is inserted in the mounting through hole 201, and a rubber sealing gasket 31 is provided in the stepped sleeve 30, a threaded sleeve 32 for connecting the threaded interface of the pressure transmitter is provided above the rubber sealing gasket 31, a U-shaped pressing plate 33 for pressing down the threaded sleeve 32 is rotatably provided on the upper part of the mounting seat 1, and a clamping plate 34 is rotatably provided at one end of the U-shaped pressing plate 33 away from the mounting seat 1, and a side of the mounting seat 1 is provided with a There is a card slot matching the card plate 34, which is quickly connected to the threaded interface end of the pressure transmitter through the threaded sleeve 32, and the pressure transmitter is quickly fixed by pressing the threaded sleeve 32 downward through the U-shaped pressure plate 33, and the threaded interface end of the pressure transmitter is tightly fitted with the rubber sealing gasket 31, so that the sealing of the connection between the pressure transmitter and the test device is guaranteed, and the U-shaped pressure plate 33 can be quickly opened and closed through the card plate 34, making the installation or disassembly of the pressure transmitter more convenient and quick.

[0021] A plunger hole 101 opposite to the delivery channel 200 is provided in the middle of one side of the mounting seat 1, a plunger plate 4 is slidably arranged in the plunger hole 101, a push-pull rod 5 is provided at one end of the plunger plate 4, and a limit sleeve 6 fixedly connected to the slider 2 is sleeved on the outer side of the push-pull rod 5, and a discharge channel 102 opposite to the plunger hole 101 is provided at the lower part of the mounting seat 1, and a liquid guide tube 7 connected to the recovery box is provided at the outlet end of the discharge channel 102, and the plunger plate 4 is pushed to slide into the delivery channel 200 by the push-pull rod 5, so that the liquid retained in the delivery channel 200 enters the recovery box through the discharge channel 102, thereby avoiding the interference of the residual liquid in the delivery channel 200 with the gas test of the pressure transmitter after the liquid test is switched to the gas test.

[0022] In this implementation, if Figure 6 As shown, the threaded sleeve 32 is composed of two arc-shaped clips 320 and a positioning pin 321. The positioning pin 321 is provided at one end of the arc-shaped clip 320, and a positioning hole matching the positioning pin 321 is provided at the other end of the arc-shaped clip 320, so that the threaded sleeve 32 does not need to be fixed to the threaded interface end of the pressure transmitter by twisting, so that the installation of the threaded sleeve 32 is faster.

[0023] In this implementation, if Figure 5 As shown, the left and right ends of the delivery channel 200 are provided with receiving grooves, and corrugated spring washers 8 are arranged in the receiving grooves. A connecting guide sleeve 9 is inserted in the corrugated spring washers 8. The connecting guide sleeve 9 is pushed by the elastic force of the corrugated spring washers 8, so that the delivery channel 200 and the infusion channel or the gas delivery channel on the mounting seat 1 can be connected more smoothly and accurately, and at the same time, the gas or liquid can be prevented from leaking through the fitting between the mounting seat 1 and the slider.

[0024] In this implementation, if Figure 5 As shown, a mounting hole is provided in the limit sleeve 6, a tightening spring 10 is provided in the mounting hole, a positioning steel ball 11 is provided at the outer end of the tightening spring 10, and a positioning groove matching the positioning steel ball 11 is provided on one side of the push-pull rod 5. The positioning steel ball is pushed into the positioning groove by the elastic force of the tightening spring 10, so as to facilitate determination that the piston plate 4 connected to the push-pull rod 5 has slid out of the conveying channel 200, thereby enabling the slider 2 to switch between liquid testing and gas testing normally.

[0025] Working principle: During the test, the slider 2 is moved to the corresponding position according to the needs of the test, and the elastic force of the corrugated spring pad 8 is used to push the connecting guide sleeve 9, so that the connection between the delivery channel 200 and the infusion channel or the gas delivery channel on the mounting seat 1 is smoother and more accurate, while preventing gas or liquid from leaking through the fitting between the mounting seat 1 and the slider, and then the threaded sleeve 32 is quickly connected to the threaded interface end of the pressure transmitter, and the U-shaped pressure plate 33 is used to press down the threaded sleeve 32, so that the pressure transmitter is quickly fixed, and at the same time, the threaded interface end of the pressure transmitter is tightly fitted with the rubber sealing pad 31, so that the sealing of the connection between the pressure transmitter and the test device is guaranteed, and then the clamping plate 34 is used to enable the U-shaped pressure plate 33 to be quickly opened and closed.

[0026] When switching the liquid test to the gas test, align the delivery channel 200 of the slider 2 with the plunger hole 101, and use the push-pull rod 5 to push the plunger plate 4 to slide into the delivery channel 200, so that the liquid retained in the delivery channel 200 enters the recovery box through the drainage channel 102, thereby avoiding the residual liquid in the delivery channel 200 interfering with the gas test of the pressure transmitter after the liquid test is switched to the gas test.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A pressure transmitter testing device, comprising a bearing platform, characterized in that: The upper part of the support platform is provided with a mounting seat (1) for connecting the conveying pipeline and the circulating pipeline, a slide groove (100) is provided in the middle of the upper surface of the mounting seat (1), a slider (2) is movably provided in the slide groove (100), a conveying channel (200) is provided in the slider (2), and a mounting through hole (201) connected to the conveying channel (200) is provided at the upper end of the slider (2), a quick connection mechanism (3) for connecting a threaded interface of a pressure transmitter is inserted in the mounting through hole (201), and the mounting through hole (201) is provided with a quick connection mechanism (3) for connecting a threaded interface of a pressure transmitter. A plunger hole (101) opposite to the delivery channel (200) is provided in the middle of one side of the mounting seat (1), a plunger plate (4) is slidably arranged in the plunger hole (101), a push-pull rod (5) is arranged at one end of the plunger plate (4), a limit sleeve (6) fixedly connected to the slider (2) is sleeved on the outer side of the push-pull rod (5), a drainage channel (102) opposite to the plunger hole (101) is provided at the lower part of the mounting seat (1), and a drainage tube (7) connected to the recovery box is arranged at the outlet end of the drainage channel (102).

2. A pressure transmitter testing device according to claim 1, characterized in that: The quick-connect mechanism (3) comprises a stepped socket (30), a rubber sealing gasket (31), a threaded sleeve (32), a U-shaped pressure plate (33) and a clamping plate (34); the stepped socket (30) is inserted into the mounting through hole (201), and the stepped socket (30) is provided with a rubber sealing gasket (31); a threaded sleeve (32) for connecting a threaded interface of a pressure transmitter is provided above the rubber sealing gasket (31); a U-shaped pressure plate (33) for pressing down the threaded sleeve (32) is rotatably provided on the upper part of the mounting seat (1), and a clamping plate (34) is rotatably provided on one end of the U-shaped pressure plate (33) away from the mounting seat (1); and a clamping groove matching the clamping plate (34) is provided on one side of the mounting seat (1).

3. A pressure transmitter testing device according to claim 2, characterized in that: The threaded sleeve (32) is composed of two arc-shaped clips (320) and a positioning pin (321); one end of the arc-shaped clip (320) is provided with a positioning pin (321), and the other end of the arc-shaped clip (320) is provided with a positioning socket matching the positioning pin (321).

4. A pressure transmitter testing device according to claim 3, characterized in that: The left and right ends of the conveying channel (200) are both provided with receiving grooves, in which corrugated spring washers (8) are arranged, and in which a connecting guide sleeve (9) is inserted.

5. A pressure transmitter testing device according to claim 4, characterized in that: A mounting hole is provided in the limiting sleeve (6), a tensioning spring (10) is provided in the mounting hole, a positioning steel ball (11) is provided at the outer end of the tensioning spring (10), and a positioning groove matching the positioning steel ball (11) is provided on one side of the push-pull rod (5).

Images