Differential pressure transmitter testing device

Abstract

The utility model relates to the technical field of instrument testing devices, in particular to a differential pressure transmitter testing device, which comprises a supporting seat, a connecting pipe is fixedly connected onto the supporting seat, an air pipe joint is mounted at one end of the connecting pipe, a differential pressure transmitter body is inserted into the air pipe joint, a pressing structure is arranged on the supporting seat, and the pressing structure is connected with the connecting pipe. The pressing structure comprises a first electric push rod and a sliding rod, the first electric push rod is installed on the supporting base, the sliding rod is fixedly connected to the end of the first electric push rod and slidably connected to the supporting base, a pressing plate is clamped to the top end of the sliding rod, and a rotary knob is in threaded connection to the top end of the sliding rod. The knob abuts against the pressing plate. And after the test is completed, the air pipe joint can be automatically pressed, so that the condition that the pressure difference indicator is taken out by manually pressing the air pipe joint is avoided, and the operation convenience is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of test devices, specifically a kind of differential pressure transmitter testing device, belong to instrument testing device technical field. BACKGROUND

[0002] Differential pressure transmitter is a kind of device for hydraulic system, main function is monitoring the working state of oil filter, prevent system failure caused by impurity blockage, when hydraulic system works, impurity particles in oil liquid are blocked by filter element in oil filter, leading to filter element gradually block, and then produce import and export pressure difference, when this pressure difference reaches set value, differential pressure transmitter will send signal, instruct operator to need timely cleaning or replacing filter element, to ensure the normal operation of hydraulic system, differential pressure transmitter needs to test its performance in the process of production, general differential pressure transmitter is connected between its and the air pipe joint on test device during testing.

[0003] However, when test is completed, staff manually press air pipe joint to be able to take down differential pressure transmitter of completing test from air pipe joint, manual pressing is more laborious each time, to lead to the convenience of operation is poorer. UTILITY MODEL CONTENT

[0004] The utility model aims at solving above problem and provides a kind of differential pressure transmitter testing device, when test is completed, can automatically press air pipe joint, avoid the need manual press air pipe joint to realize the removal of differential pressure transmitter, to effectively improve the convenience of operation.

[0005] The utility model realizes above-mentioned purpose through following technical scheme, a kind of differential pressure transmitter testing device, including support seat, the support seat is fixedly connected with connecting pipe, one end of the connecting pipe is installed with air pipe joint, the air pipe joint is inserted with differential pressure transmitter body, the support seat is equipped with press structure, the press structure includes first electric push rod and sliding rod, the support seat is installed with first electric push rod, the end of first electric push rod is fixedly connected with sliding rod, the sliding rod is slidably connected in support seat, the top end of the sliding rod is clamped with pressing plate, the top end of the sliding rod is screw-connected with knob, and the knob is in contact with pressing plate.

[0006] Preferably, the cross section of the bottom end of the sliding rod is L-shaped structure, and the cross section between the sliding rod and the pressing plate is L-shaped structure.

[0007] Preferably, the pressing plate is fixedly connected with two positioning blocks, the sliding rod is provided with two positioning grooves, and the positioning blocks are clamped between adjacent positioning grooves.

[0008] Preferably, the cross section of the end of the support seat is L-shaped structure, and the cross section of the connecting pipe as a whole is L-shaped structure.

[0009] Preferably, a control base is fixedly connected to the support base, the control base is equipped with a display screen, and the control base is equipped with multiple control buttons.

[0010] Preferably, a connector is fixedly connected to the control base, and the connector is plugged into the differential pressure transmitter body.

[0011] Preferably, the support base is provided with a pressure-applying structure, which includes a second electric push rod and a sliding plate. The second electric push rod is installed on the support base, and one end of the second electric push rod is fixedly connected to the sliding plate. A pressure sensor is fixedly connected to the sliding plate. A connecting cylinder is fixedly connected to the support base, and a piston rod is slidably connected to the connecting cylinder. One end of the piston rod is fixedly connected to a piston, and the other end of the piston rod is fixedly connected to the pressure sensor. The piston is slidably connected to the connecting cylinder.

[0012] Preferably, a guide rod is fixedly connected to the support base, and the slide plate is slidably connected to the guide rod.

[0013] Preferably, the cross-section of one end of the slide plate is L-shaped, and the connecting cylinder and the connecting pipe are fixedly connected.

[0014] The beneficial effects of this utility model are as follows: After the differential pressure transmitter body is tested, the first electric push rod can be activated. The first electric push rod extends and drives the slide rod to move. The movement of the slide rod will cause the pressure plate to move towards the tracheal connector. During the movement, the pressure plate will press the tracheal connector. When the tracheal connector is pressed, the differential pressure transmitter body can be removed from the tracheal connector, thus avoiding the need to manually press the tracheal connector, effectively saving physical strength and improving the convenience of operation. Moreover, when it is necessary to replace the tracheal connector of different specifications or when the tracheal connector is damaged and needs to be replaced, the knob can be turned off from the end of the slide rod, and then the pressure plate can be removed from the end of the slide rod. After the pressure plate is removed, it will not block the tracheal connector, thus facilitating the replacement of the tracheal connector, thereby effectively improving its practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the second electric push rod and the slide plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the piston and the connecting cylinder of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the positioning block and the positioning groove of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the first electric push rod and the slide rod of this utility model.

[0020] In the diagram: 1. Support base; 2. Connecting pipe; 3. Air pipe connector; 4. Pressing structure; 401. First electric push rod; 402. Slide rod; 403. Pressure plate; 404. Knob; 405. Positioning block; 406. Positioning groove; 5. Pressing structure; 501. Second electric push rod; 502. Slide plate; 503. Guide rod; 504. Pressure sensor; 505. Piston rod; 506. Piston; 507. Connecting cylinder; 6. Differential pressure transmitter body; 7. Connector; 8. Control base. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a differential pressure transmitter testing device includes a support base 1, a connecting pipe 2 fixedly connected to the support base 1, an air pipe connector 3 installed at one end of the connecting pipe 2, a differential pressure transmitter body 6 inserted into the air pipe connector 3, a pressing structure 4 provided on the support base 1, the pressing structure 4 including a first electric push rod 401 and a slide rod 402, the first electric push rod 401 is installed on the support base 1, the end of the first electric push rod 401 is fixedly connected to the slide rod 402, the slide rod 402 is slidably connected to the support base 1, the top end of the slide rod 402 is engaged with a pressure plate 403, the top end of the slide rod 402 is threadedly connected to a knob 404, the knob 404 abuts against the pressure plate 403, the bottom end of the slide rod 402 has an L-shaped cross-section, the cross-section between the slide rod 402 and the pressure plate 403 has an L-shaped cross-section, the end of the support base 1 has an L-shaped cross-section, and the connecting pipe 2 has an overall L-shaped cross-section.

[0023] As a technical optimization solution of this utility model, such as Figure 4 As shown, two positioning blocks 405 are fixedly connected to the pressure plate 403, and two positioning grooves 406 are provided on the slide rod 402. The positioning blocks 405 engage with the adjacent positioning grooves 406, so that the pressure plate 403 can be positioned when it is installed.

[0024] As a technical optimization solution of this utility model, such as Figure 1 As shown, a control base 8 is fixedly connected to the support base 1. The control base 8 is equipped with a display screen and multiple control buttons. A connector 7 is fixedly connected to the control base 8. The connector 7 is inserted into the differential pressure transmitter body 6. Therefore, the parameters of the device can be set and controlled through the control base 8.

[0025] As a technical optimization solution of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the support base 1 is provided with a pressure applying structure 5, which includes a second electric push rod 501 and a sliding plate 502. The second electric push rod 501 is installed on the support base 1, and one end of the second electric push rod 501 is fixedly connected to the sliding plate 502. A pressure sensor 504 is fixedly connected to the sliding plate 502. A connecting cylinder 507 is fixedly connected to the support base 1, and a piston rod 505 is slidably connected to the connecting cylinder 507. One end of the piston rod 505 is fixedly connected to a piston 506, and the other end of the piston rod 505 is fixedly connected to the pressure sensor 504. The piston 506 is slidably connected to the connecting cylinder 507. The cross-section of one end of the sliding plate 502 is L-shaped. The connecting cylinder 507 is fixedly connected to the connecting pipe 2, thus enabling pressure testing on one side of the differential pressure transmitter body 6.

[0026] As a technical optimization solution of this utility model, such as Figure 2 As shown, a guide rod 503 is fixedly connected to the support base 1, and the slide plate 502 is slidably connected to the guide rod 503. Therefore, the guide rod 503 can guide the movement of the slide plate 502.

[0027] In use, when testing the differential pressure transmitter body 6, the differential pressure transmitter body 6 can be inserted into the air pipe connector 3, and then the connector 7 can be inserted into the differential pressure transmitter body 6. After insertion, the second electric push rod 501 can be activated. The extension of the second electric push rod 501 will cause the slide plate 502 to slide on the guide rod 503. The movement of the slide plate 502 will cause the pressure sensor 504 to move. The pressure sensor 504 will cause the piston rod 505 to move. The piston rod 505 will cause the piston 506 to slide inside the connecting cylinder 507. The movement of the piston 506 will increase the air pressure inside the connecting cylinder 507, thereby simulating the situation where the pressure on one side of the differential pressure transmitter body 6 increases during actual use. The pressure value can be obtained through the pressure sensor 504 and displayed on the display screen on the control base 8. When the pressure value reaches the specified value, if the differential pressure transmitter body 6 issues an alarm, it is qualified; otherwise... If the test fails, the differential pressure transmitter body 6 is tested. After the differential pressure transmitter body 6 is tested, the first electric push rod 401 is activated. The first electric push rod 401 extends and drives the slide rod 402 to move. The movement of the slide rod 402 will drive the pressure plate 403 to move towards the air pipe connector 3. During the movement, the pressure plate 403 will press the air pipe connector 3. When the air pipe connector 3 is pressed, the differential pressure transmitter body 6 can be removed from the air pipe connector 3, thus avoiding the need to manually press the air pipe connector 3, effectively saving physical strength and improving the convenience of operation. When it is necessary to replace the air pipe connector 3 with a different specification or when the air pipe connector 3 is damaged and needs to be replaced, the knob 404 can be turned off from the end of the slide rod 402, and then the pressure plate 403 can be removed from the end of the slide rod 402. After the pressure plate 403 is removed, it will not block the air pipe connector 3, thus facilitating the replacement of the air pipe connector 3, thereby effectively improving practicality.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A differential pressure transmitter testing device, comprising a support base (1), characterized in that: A connecting pipe (2) is fixedly connected to the support base (1). An air pipe connector (3) is installed at one end of the connecting pipe (2). A differential pressure transmitter body (6) is inserted into the air pipe connector (3). A pressing structure (4) is provided on the support base (1). The pressing structure (4) includes a first electric push rod (401) and a slide rod (402). The first electric push rod (401) is installed on the support base (1). The end of the first electric push rod (401) is fixedly connected to the slide rod (402). The slide rod (402) is slidably connected to the support base (1). A pressure plate (403) is engaged at the top of the slide rod (402). A knob (404) is threadedly connected to the top of the slide rod (402). The knob (404) abuts against the pressure plate (403).

2. The differential pressure transmitter testing device according to claim 1, characterized in that: The bottom section of the slide rod (402) has an L-shaped structure, and the section between the slide rod (402) and the pressure plate (403) has an L-shaped structure.

3. The differential pressure transmitter testing device according to claim 1, characterized in that: Two positioning blocks (405) are fixedly connected to the pressure plate (403), and two positioning grooves (406) are provided on the slide rod (402). The positioning blocks (405) engage with the adjacent positioning grooves (406).

4. The differential pressure transmitter testing device according to claim 1, characterized in that: The cross-section of the end of the support base (1) is L-shaped, and the cross-section of the connecting pipe (2) as a whole is L-shaped.

5. The differential pressure transmitter testing device according to claim 1, characterized in that: A control seat (8) is fixedly connected to the support base (1). The control seat (8) is equipped with a display screen and multiple control buttons.

6. The differential pressure transmitter testing device according to claim 5, characterized in that: A connector (7) is fixedly connected to the control base (8), and the connector (7) is inserted into the differential pressure transmitter body (6).

7. The differential pressure transmitter testing device according to claim 1, characterized in that: The support base (1) is provided with a pressure-applying structure (5), which includes a second electric push rod (501) and a sliding plate (502). The second electric push rod (501) is installed on the support base (1). One end of the second electric push rod (501) is fixedly connected to the sliding plate (502). A pressure sensor (504) is fixedly connected to the sliding plate (502). A connecting cylinder (507) is fixedly connected to the support base (1). A piston rod (505) is slidably connected to the connecting cylinder (507). One end of the piston rod (505) is fixedly connected to a piston (506). The other end of the piston rod (505) is fixedly connected to the pressure sensor (504). The piston (506) is slidably connected to the connecting cylinder (507).

8. The differential pressure transmitter testing device according to claim 7, characterized in that: A guide rod (503) is fixedly connected to the support base (1), and the slide plate (502) is slidably connected to the guide rod (503).

9. The differential pressure transmitter testing device according to claim 7, characterized in that: The cross-section of one end of the slide plate (502) is L-shaped, and the connecting cylinder (507) is fixedly connected to the connecting pipe (2).

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