Oil pipe pressure testing device

Abstract

The utility model relates to the technical field of oil pipe processing, in particular to an oil pipe pressure testing device. The oil pipe pressure test device comprises a mounting plate, wherein an oil pipe for a pressure test is placed on the mounting plate, and a fixing piece for fixing the oil pipe is mounted on the mounting plate; an inflating pump for inflating the oil pipe is mounted on the mounting plate; the oil pipe pressure testing device further comprises a monitoring assembly. According to the oil pipe pressure testing device, the designed monitoring assembly adopts an elastic linkage structure of the air cylinder, the piston column and the spring, the contact piece type switch and the indicator lamp are combined, the pressure change in the oil pipe can be sensed in real time, and when the pressure reaches the standard, the piston column triggers the indicator lamp to be turned on; when the pressure is abnormal, the spring resets to extinguish the indicating lamp, thereby remarkably improving the detection precision and response speed, and reducing man-made misjudgment.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipe processing, in particular to an oil pipe pressure testing device. Background Art

[0002] During the processing of oil pipes, it is necessary to detect the air tightness of the oil pipes. Traditionally, the air tightness is usually detected by using water pressure. When performing water pressure detection, due to the relatively large volume of water molecules, the detection accuracy is very poor. Moreover, when performing water pressure detection, it is easy to cause water accumulation on the surface of the workpiece, which is easy to rust and affects the service life of the workpiece. In addition, when using water pressure detection, it is relatively wasteful of water resources. In winter or at low temperatures, it is not conducive to the work of the staff, increasing the labor intensity. Therefore, many traditional oil pipe pressure testing devices mostly use manual pressurization combined with mechanical dial monitoring, but they have problems such as low detection accuracy and slow response speed, and lack a real-time feedback mechanism. The operator needs to continuously observe the pressure gauge, which is not only inefficient but also has a risk of human judgment error.

[0003] Therefore, it is necessary to provide a new oil pipe pressure testing device to solve the above technical problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides an oil pipe pressure testing device.

[0005] The oil pipe pressure testing device provided by the utility model includes a mounting plate, on which an oil pipe for pressure testing experiments is placed and a fixing member for fixing the oil pipe is installed;

[0006] An air inflation pump for inflating the oil pipe is installed on the mounting plate;

[0007] The oil pipe pressure testing device further includes a monitoring component, and the monitoring component includes an air cylinder. A piston column is inserted into the air cylinder and is slidably connected, and the piston column is elastically connected to the air cylinder. An indicator light is fixedly installed at the tail of the air cylinder, and a touch switch for opening and closing the indicator light is installed. A pressing pointer for starting the touch switch is installed on the piston column.

[0008] Preferably, a middle connection plate is fixedly installed on the upper column surface of the piston column near the tail, and the middle connection plate extends out of the sliding cavity opened in the air cylinder and is in sliding contact with the sliding cavity. The pressing pointer is fixedly installed on the top of the middle connection plate, and the pressing pointer corresponds to the touch switch.

[0009] Preferably, the length of the sliding cavity is less than the length of the piston column, and the sliding cavity is close to the tail of the air cylinder. The piston column is provided with a pressure relief flow channel, and an electromagnetic valve for sealing the pressure relief flow channel is installed on the pressure relief flow channel.

[0010] Preferably, a spring is installed inside the air cylinder. One end of the spring is fixedly connected to the inner wall of the air cylinder, and the other end of the spring is fixedly connected to the tail of the piston rod.

[0011] Preferably, a threaded interface for threaded docking with the oil pipe is installed on the air cylinder.

[0012] Preferably, a voice broadcaster is fixedly installed at the tail of the air cylinder.

[0013] Preferably, multiple groups of fixing members are provided, and the multiple groups of fixing members are arranged in parallel. The fixing member includes a support frame, the support frame is fixedly installed on the mounting plate, and a fastening screw rod for fastening the oil pipe is inserted into a threaded through hole opened on the support frame.

[0014] Preferably, threaded joints are provided at both ends of the oil pipe.

[0015] Preferably, an air delivery pipe is fixedly installed at the output end of the air pump, a threaded sleeve is fixedly installed on the air delivery pipe, and a valve is installed on the air delivery pipe.

[0016] Compared with the related art, the oil pipe pressure test device provided by the present utility model has the following beneficial effects:

[0017] The monitoring component designed by the present utility model adopts an elastic linkage structure of an air cylinder, a piston rod and a spring, combined with a contact switch and an indicator light, which can sense the pressure change in the oil pipe in real time. When the pressure reaches the standard, the piston rod triggers the indicator light to light up; when the pressure is abnormal, the spring resets to extinguish the indicator light, significantly improving the detection accuracy and response speed, and reducing human misjudgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a preferred embodiment of the oil pipe pressure test device provided by the present utility model;

[0019] Figure 2 is Figure 1 the explosion structural diagram shown;

[0020] Figure 3 is Figure 2 the structural diagram of the monitoring component shown;

[0021] Figure 4 is Figure 3 the sectional structural diagram of the monitoring component shown.

[0022] Reference numerals in the figure: 1, mounting plate; 2, fixing member; 21, support frame; 22, fastening screw; 3, oil pipe; 4, air inflation pump; 5, monitoring assembly; 51, air cylinder; 51a, sliding cavity; 52, threaded interface; 53, piston rod; 53a, pressure relief flow channel; 531, solenoid valve; 54, spring; 55, indicator light; 551, voice broadcaster; 56, contact switch; 57, pressing pointer; 58, intermediate connection plate. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] The following describes the specific implementation of the present utility model in detail in conjunction with specific embodiments.

[0025] Please refer to Figures 1 to 4 , a kind of oil pipe pressure test device provided by an embodiment of the present utility model, the oil pipe pressure test device includes a mounting plate 1, an air inflation pump 4 and a monitoring assembly 5.

[0026] In an embodiment of the present utility model, please refer to Figures 1 to 4 , an oil pipe 3 for a pressure test experiment is placed on the mounting plate 1 and a fixing member 2 for fixing the oil pipe 3 is installed. There are multiple groups of fixing members 2, and the multiple groups of fixing members 2 are arranged in parallel. The fixing member 2 includes a support frame 21. The support frame 21 is fixedly installed on the mounting plate 1, and a fastening screw 22 for fastening the oil pipe 3 is inserted into a threaded through hole opened on the support frame 21. Threaded joints are provided at both ends of the oil pipe 3.

[0027] It should be noted that: the oil pipe 3 to be subjected to a pressure test experiment is erected on the support frame 21, and then the fastening screw 22 is tightened, so that the oil pipe 3 is fixed on the support frame 21 for subsequent pressure test experiments.

[0028] In an embodiment of the present utility model, please refer to Figures 1 to 4, an air inflation pump 4 for inflating the oil pipe 3 is installed on the mounting plate 1. The output end of the air inflation pump 4 is fixedly installed with an air delivery pipe, and a threaded sleeve is fixedly installed on the air delivery pipe. A valve is installed on the air delivery pipe. The oil pipe pressure test device further includes a monitoring component 5, and the monitoring component 5 includes a cylinder 51. A piston rod 53 connected in a sliding manner is inserted into the cylinder 51, and the piston rod 53 is elastically connected to the cylinder 51. A spring 54 is installed in the cylinder 51. One end of the spring 54 is fixedly connected to the inner wall of the cylinder 51, and the other end of the spring 54 is fixedly connected to the tail of the piston rod 53. An indicator light 55 and a touch switch 56 for opening and closing the indicator light 55 are fixedly installed at the tail of the cylinder 51. A pressing pointer 57 for starting the touch switch 56 is installed on the piston rod 53. Specifically, a middle connecting plate 58 is fixedly installed on the upper cylindrical surface of the piston rod 53 near the tail, and the middle connecting plate 58 extends out of the sliding cavity 51a opened in the cylinder 51 and is in sliding contact with the sliding cavity 51a. The pressing pointer 57 is fixedly installed on the top of the middle connecting plate 58, and the pressing pointer 57 corresponds to the touch switch 56. A threaded interface 52 for threadedly docking with the oil pipe 3 is installed on the cylinder 51.

[0029] It should be noted that: after the oil pipe is fixed, the threaded sleeve on the air inflation pump 4 is fixedly installed at one end of the oil pipe 3, and then the cylinder 51 is threadedly fixed to the other end of the oil pipe through the threaded interface 52. Then, the air inflation pump 4 is turned on to inflate the oil pipe 3. When the air pressure in the oil pipe 3 increases, at this time, the piston rod 53 slides towards the tail of the cylinder 51 under the action of the gas pressure and compresses the spring 54 until the pressing pointer 57 abuts against the touch switch 56, and then the indicator light 55 lights up. At this time, first close the valve on the air delivery pipe and then turn off the air inflation pump 4. Let it stand for 5 - 10 minutes. If the indicator light 55 is in a constantly on state during this period, it means that the oil pipe 3 is in good condition and does not leak. If the indicator light 55 goes out, it means that the air pressure in the oil pipe 3 decreases due to air leakage in the oil pipe 3, so that the piston rod 53 slides towards the threaded interface 52 under the elastic force of the spring 54, and thus the pressing pointer 57 no longer abuts against the touch switch 56, causing the indicator light 55 to go out;

[0030] The monitoring component 5 designed in this application adopts an elastic linkage structure of the cylinder 51, the piston rod 53 and the spring 54, combined with the touch switch 56 and the indicator light 55, which can sense the pressure change in the oil pipe 3 in real time. When the pressure reaches the standard, the piston rod 53 triggers the indicator light 55 to light up; when the pressure is abnormal, the spring 54 resets to turn off the indicator light 55, significantly improving the detection accuracy and response speed and reducing human misjudgment.

[0031] Among them, a pressure relief flow channel 53a is opened on the piston rod 53, and a solenoid valve 531 for sealing the pressure relief flow channel 53a is installed on the pressure relief flow channel 53a. During the test, the solenoid valve 531 is closed, and after the test is completed, the solenoid valve 531 is opened so that the gas in the oil pipe 3 is quickly discharged and the pressure is relieved.

[0032] In this embodiment: If the indicator light 55 does not light up or the pressing pointer 57 has no obvious displacement during the inflation process of the oil pipe 3, it indicates that there is a problem of air leakage in the oil pipe 3.

[0033] Furthermore, a voice broadcaster 551 is fixedly installed at the tail of the air cylinder 51 to timely remind the staff to perform the airtightness process.

[0034] Furthermore, the length of the sliding cavity 51a is less than the length of the piston column 53, and the sliding cavity 51a is close to the tail of the air cylinder 51, so as to prevent the piston column 53 from sliding to the rear side of the air cylinder 51 where the sliding cavity 51a is provided, resulting in the hidden danger of gas leakage in the air cylinder 51 where the sealing part of the piston column 53 is located.

[0035] Among them, a storage battery for supplying power to the indicator light 55 and the voice broadcaster 551 is embedded in the tail of the air cylinder 51 in this application. The storage battery, the indicator light 55, the voice broadcaster 551 and the touch switch 56 adopt a series circuit. The circuits and controls involved are all prior arts and will not be elaborated here.

[0036] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An oil pipe pressure testing device, characterized in that, It includes a mounting plate (1) on which an oil pipe (3) for a pressure test is placed and a fixing member (2) for fixing the oil pipe (3) is installed; An air inflation pump (4) for inflating the oil pipe (3) is installed on the mounting plate (1); The oil pipe pressure test device further includes a monitoring component (5), and the monitoring component (5) includes a cylinder (51). A piston rod (53) connected in a sliding manner is inserted into the cylinder (51), and the piston rod (53) is elastically connected to the cylinder (51). An indicator light (55) is fixedly installed at the tail of the cylinder (51), and a touch switch (56) for turning on and off the indicator light (55) is installed. A pressing pointer (57) for activating the touch switch (56) is installed on the piston rod (53).

2. The tubing pressure testing device according to claim 1, characterized in that, A middle connecting plate (58) is fixedly installed on the upper cylindrical surface of the piston rod (53) near the tail. The middle connecting plate (58) extends out of a sliding cavity (51a) opened in the cylinder (51) and is in sliding contact with the sliding cavity (51a). The pressing pointer (57) is fixedly installed on the top of the middle connecting plate (58), and the pressing pointer (57) corresponds to the touch switch (56).

3. The tubing pressure testing device according to claim 2, wherein, The length of the sliding cavity (51a) is less than the length of the piston rod (53), and the sliding cavity (51a) is close to the tail of the cylinder (51). A pressure relief flow channel (53a) is opened in the piston rod (53), and a solenoid valve (531) for sealing the pressure relief flow channel (53a) is installed on the pressure relief flow channel (53a).

4. The tubing pressure testing device according to claim 1, wherein, A spring (54) is installed in the cylinder (51). One end of the spring (54) is fixedly connected to the inner wall of the cylinder (51), and the other end of the spring (54) is fixedly connected to the tail of the piston rod (53).

5. The tubing pressure testing device according to claim 1, wherein A threaded interface (52) for threaded docking with the oil pipe (3) is installed on the cylinder (51).

6. The tubing pressure testing device according to claim 1, wherein, A voice broadcaster (551) is also fixedly installed at the tail of the cylinder (51).

7. The tubing pressure testing device according to claim 1, wherein, There are multiple groups of the fixing members (2), and the multiple groups of fixing members (2) are arranged in parallel. The fixing member (2) includes a support frame (21) fixedly installed on the mounting plate (1), and a fastening screw rod (22) for fastening the oil pipe (3) is inserted into a threaded through hole opened in the support frame (21).

8. The tubing pressure testing device according to claim 1, characterized in that Threaded joints are provided at both ends of the oil pipe (3).

9. The tubing pressure testing device according to claim 1, wherein The output end of the air inflation pump (4) is fixedly installed with an air delivery pipe, and a threaded sleeve is fixedly installed on the air delivery pipe. A valve is installed on the air delivery pipe.

Images