Pressure detection device

By setting lubrication and limiting components on the suction cup rod, friction is reduced, solving the problem of inaccurate detection accuracy of the suction cup rod and achieving more efficient pressure detection.

CN224216210UActive Publication Date: 2026-05-08QINGDAO HUANGANG HEAVY IND TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HUANGANG HEAVY IND TECH CO LTD
Filing Date
2025-04-28
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In the prior art, when the suction cup rod encounters an obstacle or object, the friction affects the piston movement, resulting in inaccurate detection of pressure changes inside the cylinder and affecting the detection accuracy.

Method used

By setting up lubrication and limiting components, the friction between the piston and the cylinder wall is reduced, and the lubrication components are driven by a motor to inject lubricating oil, thereby reducing the impact of friction and improving the smoothness of piston movement.

Benefits of technology

It effectively reduces friction, improves cylinder working efficiency, ensures that pressure changes inside the cylinder accurately reflect the external force on the suction rod, and improves detection accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pressure detection device, which relates to the technical field of pressure detection and comprises a sucker rod, a mounting seat arranged on the sucker rod, a top plate arranged at the top of the mounting seat and a detection assembly, the detection assembly comprises an air cylinder arranged on the mounting seat, an air rod is slidably connected onto the air cylinder, and a connecting rod is connected between the sucker rod and the mounting seat. The lubricating assembly comprises an oil storage barrel arranged on the top of the top plate, the top of the top plate is rotationally connected with a fixing shaft, the fixing shaft is connected with a rotating disc, the rotating disc is provided with a rotating shaft, the rotating shaft is connected with a connecting arm, and the connecting arm is connected with a sliding rod. By arranging the lubricating assembly, the friction force between the piston and the inner wall of the air cylinder can be effectively reduced, the piston can move more smoothly, energy loss is reduced, and the working efficiency of the air cylinder is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pressure detection technology, specifically a pressure detection device. Background Technology

[0002] In industries such as petrochemicals and energy, pressure monitoring of pipelines and pressure vessels is crucial to production safety and the health and safety of personnel. During oil pipeline transportation, abnormal pressure can trigger serious accidents such as leaks or even explosions. Past methods relying on manual inspections and simple instrument monitoring were not only inefficient but also unable to capture pressure changes in real time, making it difficult to promptly detect potential safety hazards.

[0003] In existing technologies, when the suction cup rod encounters an obstacle or presses against the object to be suctioned, a reaction force is generated, pushing the piston of the cylinder to move. The piston's movement compresses the gas inside the cylinder, and the reduced gas volume increases the pressure within the cylinder. At this point, a pressure sensor connected to the cylinder can detect the pressure change. However, as the piston moves within the cylinder, it is inevitably subject to friction. This friction affects the transmission of the piston's reaction force to the suction cup rod, causing the pressure change within the cylinder to not accurately reflect the external force acting on the suction cup rod, thus affecting the detection accuracy. Therefore, we propose a pressure detection device. Utility Model Content

[0004] The purpose of this invention is to provide a pressure detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure detection device, comprising:

[0006] The suction cup rod, the mounting base on the suction cup rod, and the top plate on the top of the mounting base;

[0007] The detection component includes a cylinder mounted on a mounting base, a pneumatic rod slidably connected to the cylinder, a connecting rod connecting the suction cup rod and the mounting base, a connecting shaft mounted on the connecting rod, the pneumatic rod connected to the connecting shaft, and a detector mounted on the cylinder.

[0008] The lubrication assembly includes an oil reservoir disposed on the top of a top plate. A fixed shaft is rotatably connected to the top of the top plate. A turntable is connected to the fixed shaft. A rotating shaft is disposed on the turntable. A connecting arm is connected to the rotating shaft. A sliding rod is connected to the connecting arm. A stop block is disposed on the sliding rod. An oil injection pipe is fixedly connected to the top of the oil reservoir.

[0009] Furthermore, a motor is provided at the bottom of the top plate, and the fixed shaft is fixedly connected to the output end of the motor.

[0010] The above technical solution involves setting up a motor as the power source for the lubrication components, which drives the sliding rod and the abutment to squeeze the oil reservoir.

[0011] Furthermore, a locking assembly is provided on the top of the top plate near the sliding rod. The locking assembly includes a connecting seat, on which a clamping plate is provided. There are two clamping plates, and the sliding rod is slidably connected to the clamping plate.

[0012] The above technical solution involves setting a locking component to limit the sliding rod and prevent its movement trajectory from deviating during the movement.

[0013] Furthermore, a limiting component is provided on the side of the top of the top plate away from the lubrication component. The limiting component includes a limiting plate, and a limiting block is provided on the limiting plate.

[0014] The above technical solution is adopted: by setting a limiting component, the other side of the oil storage tank is limited and fixed.

[0015] Furthermore, a fixing component is provided on the top of the top plate near the oil storage tank. The fixing component includes a fixing ring, and a support rod is connected between the fixing ring and the top of the top plate.

[0016] The above technical solution involves setting up a fixing component to connect the oil storage tank to the top plate.

[0017] Furthermore, the cylinder is provided with a feeding assembly, which includes an oil inlet pipe. A sealing cap is threadedly connected to the top of the oil inlet pipe, and an oil drain pipe is fixedly connected to the bottom of the oil storage tank.

[0018] The above technical solution is adopted: by setting up a feeding component, the extruded lubricating oil flows from the oil drain pipe into the oil inlet pipe and then into the cylinder.

[0019] Furthermore, the mounting base is provided with a fixing seat, and a fixing rod is fixedly connected to the fixing seat, and the fixing rod is fixedly connected to the connecting rod.

[0020] The above technical solution involves setting a fixed base and a fixed rod to connect the connecting rod to the mounting base.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by incorporating a lubrication component, the friction between the piston and the cylinder wall is effectively reduced, resulting in smoother piston movement, reduced energy loss, and improved cylinder efficiency. This solves the problem in existing technologies where, when the suction cup rod encounters an obstacle or presses against the object to be suctioned, a reaction force is generated, pushing the piston in the cylinder. This piston movement compresses the gas inside the cylinder, increasing the pressure. While a pressure sensor connected to the cylinder can detect this pressure change, friction inevitably affects the transmission of the piston's reaction force to the suction cup rod. This friction causes the pressure change inside the cylinder to not accurately reflect the external force acting on the suction cup rod, thus affecting detection accuracy. Attached Figure Description

[0023] Figure 1 This is a front view of a pressure detection device.

[0024] Figure 2 This is a side view of a pressure detection device.

[0025] Figure 3 This is a split diagram of a pressure detection device.

[0026] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0027] Numbering on the map:

[0028] 1. Suction cup rod; 2. Mounting base;

[0029] 3. Detection assembly; 31. Cylinder; 32. Detector; 33. Connecting rod; 34. Connecting shaft; 35. Pneumatic rod;

[0030] 4. Top slab;

[0031] 5. Lubrication components; 51. Oil reservoir; 52. Turntable; 53. Fixed shaft; 54. Rotating shaft; 55. Connecting arm; 56. Sliding rod; 57. Abutment; 58. Oil injection pipe;

[0032] 6. Limiting component; 61. Limiting plate; 62. Limiting block;

[0033] 7. Locking assembly; 71. Connecting base; 72. Clamping plate;

[0034] 8. Fixing components; 81. Fixing ring; 82. Support rod;

[0035] 9. Feeding assembly; 91. Oil inlet pipe; 92. Oil outlet pipe; 93. Sealing cap;

[0036] 10. Fixing base; 11. Fixing rod. Detailed Implementation

[0037] 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.

[0038] like Figures 1-3 As shown, this utility model provides a technical solution: a pressure detection device, comprising:

[0039] Suction cup rod 1, mounting base 2 on suction cup rod 1, and top plate 4 on top of mounting base 2;

[0040] The detection component 3 includes a cylinder 31 mounted on the mounting base 2, a pneumatic rod 35 slidably connected to the cylinder 31, a connecting rod 33 connecting the suction cup rod 1 and the mounting base 2, a connecting shaft 34 mounted on the connecting rod 33, the pneumatic rod 35 connected to the connecting shaft 34, and a detector 32 mounted on the cylinder 31.

[0041] The lubrication assembly 5 includes an oil reservoir 51 disposed on the top of the top plate 4. A fixed shaft 53 is rotatably connected to the top of the top plate 4. A turntable 52 is connected to the fixed shaft 53. A rotating shaft 54 ​​is disposed on the turntable 52. A connecting arm 55 is connected to the rotating shaft 54. A sliding rod 56 is connected to the connecting arm 55. A stop block 57 is disposed on the sliding rod 56. An oil injection pipe 58 is fixedly connected to the top of the oil reservoir 51. A motor is disposed at the bottom of the top plate 4. The fixed shaft 53 is fixedly connected to the output end of the motor.

[0042] Specifically, when the suction rod 1 encounters an obstacle, the reaction force pushes the air rod 35 to move like a piston in the cylinder 31, thereby increasing the pressure inside the cylinder 31. The cylinder 31 is connected to the detector 32. When the air pressure in the cylinder 31 increases, it indicates that the suction rod 1 has encountered an obstacle or pressed against the object to be suctioned. This is how feedback is obtained when the workpiece to be suctioned is encountered. After long-term operation, the friction inside the cylinder 31 will increase. Then, the motor is turned on to drive the turntable 52 to rotate. The turntable 52 drives the top rotating shaft 54 ​​and the connecting arm 55 to move. The connecting arm 55 drives the sliding rod 56 and the stop block 57 to squeeze the oil reservoir 51, thereby injecting oil into the cylinder 31.

[0043] Furthermore, such as Figure 3 and Figure 4As shown: The cylinder 31 is equipped with a feeding assembly 9, which includes an oil inlet pipe 91. The top of the oil inlet pipe 91 is threadedly connected to a sealing cap 93. The bottom of the oil reservoir 51 is fixedly connected to an oil drain pipe 92. Lubricating oil enters the oil inlet pipe 91 from the oil drain pipe 92, and then enters the cylinder 31 from the oil inlet pipe 91. The sealing cap 93 then seals the top of the oil inlet pipe 91.

[0044] The above solutions also have the problem that the trajectory of the sliding rod 56 is prone to deviation during movement, such as... Figure 3 As shown: A locking component 7 is provided on the top side of the top plate 4 near the sliding rod 56. The locking component 7 includes a connecting seat 71, and a clamping plate 72 is provided on the connecting seat 71. There are two clamping plates 72. The sliding rod 56 is slidably connected in the clamping plate 72. By setting the locking component 7, the sliding rod 56 is limited to prevent its movement trajectory from deviating during the movement.

[0045] The above solutions also have drawbacks: the side of the oil reservoir 51 furthest from the lubrication assembly 5 is not limited, and the oil reservoir 51 cannot be fixed to the top of the top plate 4. Figure 3 As shown: A limiting component 6 is provided on the side of the top plate 4 away from the lubrication component 5. The limiting component 6 includes a limiting plate 61 and a limiting block 62 is provided on the limiting plate 61. A fixing component 8 is provided on the side of the top plate 4 near the oil reservoir 51. The fixing component 8 includes a fixing ring 81 and a support rod 82 is connected between the fixing ring 81 and the top of the top plate 4. By setting the limiting component 6, the other side of the oil reservoir 51 is limited and fixed. By setting the fixing component 8, the oil reservoir 51 is connected to the top plate 4.

[0046] Furthermore, such as Figure 2 As shown: A fixing seat 10 is provided on the mounting base 2, and a fixing rod 11 is fixedly connected to the fixing seat 10. The fixing rod 11 is fixedly connected to the connecting rod 33. By setting the fixing seat 10 and the fixing rod 11, the connecting rod 33 and the mounting base 2 can be connected.

[0047] The working principle provided by this utility model is as follows: Figures 1-4As shown: When the suction rod 1 encounters an obstacle, the reaction force pushes the air rod 35 to move like a piston in the cylinder 31, thereby increasing the pressure inside the cylinder 31. The cylinder 31 is connected to the detector 32. When the air pressure in the cylinder 31 increases, it indicates that the suction rod 1 has encountered an obstacle or pressed the object to be suctioned. This is used to detect and provide feedback on whether the workpiece to be suctioned has been encountered. After long-term operation, the friction inside the cylinder 31 will increase. Then, the motor is turned on to drive the turntable 52 to rotate. The turntable 52 drives the top rotating shaft 54 ​​and the connecting arm 55 to move. The connecting arm 55 drives the sliding rod 56 and the abutment block 57 to squeeze the oil reservoir 51. When the sliding rod 56 is moving, the clamps 72 on both sides will limit its movement trajectory to prevent deviation from the movement trajectory, thereby injecting oil into the cylinder 31. The lubricating oil enters the oil inlet pipe 91 from the oil outlet pipe 92, and then enters the cylinder 31 from the oil inlet pipe 91. Then, the sealing cap 93 seals the top of the oil inlet pipe 91.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A pressure detection device, characterized in that, include: The suction cup rod (1), the mounting base (2) provided on the suction cup rod (1), and the top plate (4) provided on the top of the mounting base (2); The detection component (3) includes a cylinder (31) mounted on a mounting base (2), a pneumatic rod (35) slidably connected to the cylinder (31), a connecting rod (33) connecting the suction cup rod (1) and the mounting base (2), a connecting shaft (34) being provided on the connecting rod (33), the pneumatic rod (35) being connected to the connecting shaft (34), and a detector (32) being provided on the cylinder (31). The lubrication assembly (5) includes an oil reservoir (51) disposed on the top of the top plate (4). A fixed shaft (53) is rotatably connected to the top of the top plate (4). A turntable (52) is connected to the fixed shaft (53). A rotating shaft (54) is disposed on the turntable (52). A connecting arm (55) is connected to the rotating shaft (54). A sliding rod (56) is connected to the connecting arm (55). A stop block (57) is disposed on the sliding rod (56). An oil injection pipe (58) is fixedly connected to the top of the oil reservoir (51).

2. The pressure detection device according to claim 1, characterized in that: A motor is provided at the bottom of the top plate (4), and the fixed shaft (53) is fixedly connected to the output end of the motor.

3. The pressure detection device according to claim 1, characterized in that: A locking assembly (7) is provided on the top of the top plate (4) near the sliding rod (56). The locking assembly (7) includes a connecting seat (71) and a clamping plate (72) is provided on the connecting seat (71). There are two clamping plates (72), and the sliding rod (56) is slidably connected in the clamping plate (72).

4. The pressure detection device according to claim 1, characterized in that: A limiting component (6) is provided on the side of the top plate (4) away from the lubrication component (5). The limiting component (6) includes a limiting plate (61) and a limiting block (62) is provided on the limiting plate (61).

5. A pressure detection device according to claim 1, characterized in that: A fixing component (8) is provided on the top of the top plate (4) near the oil storage tank (51). The fixing component (8) includes a fixing ring (81), and a support rod (82) is connected between the fixing ring (81) and the top of the top plate (4).

6. A pressure detection device according to claim 1, characterized in that: The cylinder (31) is provided with a feeding assembly (9), which includes an oil inlet pipe (91). The top of the oil inlet pipe (91) is threaded with a sealing cap (93), and the bottom of the oil storage cylinder (51) is fixedly connected to an oil drain pipe (92).

7. A pressure detection device according to claim 1, characterized in that: The mounting base (2) is provided with a fixing base (10), and a fixing rod (11) is fixedly connected to the fixing base (10). The fixing rod (11) is fixedly connected to the connecting rod (33).