A pressure testing apparatus

Abstract

The utility model relates to a pressure test equipment, including support, collection and bundle department and lifting wheel mechanism, support includes upper plate and lower plate, and the electric pressure test pump is placed on the upper surface of lower plate and is connected between lower plate and upper plate via many vertical struts, and the electric pressure test pump is connected with long tube one end, collection and bundle department includes rotatable center rod, and long tube is tightly arranged in the center rod back in a circle and makes the center rod rotate to left, and long tube is relaxed and pulls another end and inserts into the fixing piece, and the center rod rotates to right, and long tube is tightened in the collection and bundle department, avoids long tube to scatter and to place, lifting wheel mechanism sets up in the four corner positions of lower plate, and lifting wheel mechanism includes gyro wheel and lifting lead screw, gyro wheel is sleeved on lifting lead screw through mounting piece, drives lifting lead screw and makes gyro wheel act downward to gyro wheel ground, thereby can make the equipment to move everywhere and carry out experiment, the utility model reaches the beneficial effect is: mobile flexible convenient, strong adaptability and effectively accomodate long tube cable.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a pressure testing device. Background Technology

[0002] Pressure testing is an important means of evaluating the strength, sealing performance, and safety of pressure-bearing equipment (such as pressure vessels, valves, engine blocks, and various hydraulic components). Liquid pressure testing is the most basic and commonly used test method for factory inspection and periodic inspection of most industrial equipment because it is safer to implement and can effectively and directly detect macroscopic defects. Liquid pressure testing equipment is widely used in petrochemical, energy and power, automobile manufacturing, aerospace, pressure vessel and pipeline engineering and other fields. Its main function is to simulate the liquid pressure that pressure-bearing devices are subjected to under actual working conditions, thereby verifying their performance.

[0003] However, although liquid pressure testing equipment used in industrial production and equipment testing has been developed for many years, there are still some problems that need to be solved: First, the current equipment requires various long hoses or cables to connect the cylinder to the control platform and electric pressure testing pump during the experiment. The hoses in the experimental equipment are usually placed messily when not in use and become tangled when not in use. Therefore, they need to be effectively stored and fixed. In addition, the equipment as a whole is often large and bulky and cannot be moved flexibly to different locations, so its practicality and adaptability are relatively poor.

[0004] Therefore, based on customer feedback regarding the shortcomings of existing equipment, the inventors made further improvements to overcome the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pressure testing device that is mobile, flexible, convenient, highly adaptable, and effectively accommodates various long pipes and cables.

[0006] The purpose of this utility model is achieved through the following technical solution: a pressure testing device, including a support, a converging part, and a lifting wheel mechanism; The support includes an upper plate and a lower plate. An electric pressure testing pump is placed on the upper surface of the lower plate, and the lower plate and the upper plate are connected by multiple vertical supports. The electric pressure testing pump is connected to one end of a long tube. The converging part includes a rotatable central rod. The long tube is tightly wound around the central rod in circles. When the central rod is rotated to the left, the long tube loosens and pulls the other end upward to insert into the fixing piece. When the central rod is rotated to the right, the long tube tightens at the converging part to prevent the long tube from being scattered. The lifting wheel mechanism is set at the four corners of the lower plate. The lifting wheel mechanism includes rollers and lifting screws. The rollers are mounted on the lifting screws through mounting pieces. Driving the lifting screws causes the rollers to move downwards until the rollers touch the ground, thereby enabling the device to move around for experiments.

[0007] As a preferred technical solution of this application, the bottom surface of the lower plate is also provided with a support frame; a total of four support frames are provided and are respectively vertically installed at the four corners of the lower plate. By driving the lifting screw to rotate, the roller moves upward until the roller is suspended in the air, and the support frame supports the device on the ground.

[0008] As a preferred technical solution of this application, the upper and lower ends of the lifting screw are fixed in a concave frame. The upper end of the lifting screw passes through the upper surface of the concave frame and is connected to the motor A. The motor A drives the lifting screw to rotate. The side plate of the concave frame is fixed to the lower plate, thereby installing the lifting wheel mechanism onto the lower plate.

[0009] As a preferred technical solution of this application, a control box is provided on the upper surface of the upper plate. The control box extends through a line to connect to the electric pressure testing pump and pressure testing cylinder on the lower plate, thereby controlling the pressure testing system. At the same time, the extension line is connected to the motor A at the four corners of the lower plate to control the synchronous drive of the motor A.

[0010] As a preferred technical solution of this application, the lower plate is provided with a plurality of gathering sections spaced at a certain distance, which simultaneously gather the lines deep inside the control box to avoid the lines being messy.

[0011] As a preferred technical solution of this application, the upper plate is mounted on the side of a fixing frame, which includes a fork-shaped plate and a movable plate. The fork-shaped plate is fixedly mounted on the side of the upper plate and has four forked strips. Each forked strip has multiple holes B. The movable plate also has multiple holes A. The movable plate can move along the forked strips and the holes A and B are locked together by bolts, which can extend the area of ​​the fixing frame and adapt to fixing cylinders of various sizes.

[0012] As a preferred technical solution of this application, the fixing member includes a fixing ring; a narrow plate extends vertically from one side of the upper plate, and multiple fixing rings are equally spaced on the narrow plate, so that the long tube is positioned by inserting it into the fixing ring.

[0013] This utility model has the following advantages: (1) This equipment is easy to move and flexible, and convenient to use; The existing equipment is bulky and occupies a large area, making it inconvenient to move and difficult to meet the needs of multi-workshop or laboratory operation. Therefore, this solution solves this problem by designing a lifting wheel mechanism. In the lifting wheel mechanism, the lifting screw driven by motor A serves as the main force to drive the rollers to move up and down. When the device needs to move, the rollers are lowered to the ground to move. When no movement is needed, the rollers are raised, and the support frame used in conjunction supports and stabilizes the device. (2) Effectively organize long pipes and cables to avoid clutter; Existing pressure testing equipment often suffers from disorganized layouts, tangles, and improper storage of long tubes or cables. This requires extra time to organize and separate the cables before and after use, wasting time and posing safety hazards. When idle, the tangled cable conduits can easily cause people to trip or be trampled, potentially leading to personal injury or equipment damage. Therefore, this solution addresses this issue by designing multiple cable-gathering sections. These sections organize and partition the long tubes and cables in an orderly manner, and the length of each cable can be adjusted by rotating the central rod, preventing tangling, facilitating use, and improving efficiency. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention from a frontal view; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective; Figure 4 This is a schematic diagram of the structure of the fixing frame of this utility model after an explosion; Figure 5 This is a schematic diagram of the lifting wheel mechanism of this utility model; In the diagram: 1-Upper plate, 2-Lower plate, 3-Contraction section, 4-Center rod, 5-Electric pressure test pump, 6-Long pipe, 7-Roller, 8-Lifting screw, 9-Support frame, 10-Control box, 11-Bifurcation bar, 12-Moving plate, 13-Hole A, 14-Hole B, 15-Groove, 16-Fixing ring. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0016] It should be noted that the orientation or positional relationship indicated by terms such as "left" and "right" is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. Such terms are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that the electric pressure testing pump 5 is an electrically driven device used to generate ultra-high pressure liquids (usually water or oil), and it is the core pressure source in liquid pressure testing equipment; most electric pressure testing pumps 5 adopt a reciprocating plunger design. The motor drives the crankshaft connecting rod, causing multiple plungers (usually 2-4) to reciprocate, alternately drawing in and discharging liquid, thereby smoothly outputting high-pressure liquid, and a precision pressure gauge is usually integrated on the pump body to display the output pressure in real time.

[0019] Therefore, based on the above issues, please refer to Figure 1 This utility model proposes a pressure testing device to solve the problem.

[0020] See Figures 1-5 The pressure testing equipment proposed in this embodiment includes a bracket with an upper plate 1 and a lower plate 2, a converging part 3 and a lifting wheel structure disposed in the lower plate 2, and the upper plate 1 is used to place the control box 10 and other devices. Among them, see Figure 1 Multiple support pillars are vertically connected between the upper plate 1 and the lower plate 2, and an electric pressure test pump 5 is installed in the space between the upper and lower plates 2. The electric pressure test pump 5 is connected to an output long pipe 6. The long pipe 6 is wrapped around the converging part 3. The long pipe 6 is tightened around the central rod 4 in the converging part 3 one circle at a time. The central rod 4 itself can rotate. When the central rod 4 rotates to the left, the long pipe 6 is loosened and the other end is pulled upward to insert into the fixing part. When the central rod 4 rotates to the right, the long pipe 6 is tightened in the converging part 3, thereby preventing the long pipe 6 from becoming tangled. Among them, see Figure 2 and Figure 5 The lifting wheel mechanism includes rollers 7 and lifting screws 8. A total of four sets of lifting wheel mechanisms are set at the four corners of the lower plate 2. The rollers 7 can be driven by the lifting screws 8 to move up and down. When the rollers 7 move down to contact the ground, the device can be flexibly moved around by the rollers 7, which is convenient for use. During operation, the liquid is pressurized by the electric pressure pump 5 through the long pipe 6 and used to conduct pressure tests on the test specimen cylinder. The long pipe 6 is tightened or loosened by rotating the central rod 4 in the converging part 3, thereby storing the cable pipes in the device and preventing them from being messy. At the same time, when it is necessary to move the device, the lifting screw 8 in the lifting wheel mechanism drives the roller 7 to descend along the screw direction until it contacts the ground, thereby moving the device through the roller 7.

[0021] The long tubes 6 or cables used in existing experimental equipment are often messy and tangled, requiring them to be separated before use or easily trampled or tripped over when not in use. Therefore, we need a simple and effective way to store or fix them. At the same time, the existing equipment does not have a convenient and flexible moving mechanism, making it difficult to move to different locations and resulting in poor adaptability. Therefore, this solution designs a pressure testing device that uses a gathering part 3 to store and fix the cables and long tubes 6, and sets up a lifting wheel mechanism. The rollers 7 cooperate with the drive component - lifting screw 8 to achieve flexible movement of the device.

[0022] In this embodiment, see Figure 2 and Figure 5 For the lifting wheel mechanism; the lifting screw 8 in the lifting wheel mechanism is installed in a concave frame. The concave frame includes a side plate and two horizontal plates that are perpendicularly connected to both ends of the side plate. The side plate is fixedly connected to the lower plate 2 of the bracket by welding or other means. The lifting screw 8 is rotatably inserted into the concave frame, and the upper end of the screw passes through the upper horizontal plate of the concave frame and extends out to be connected to a motor A. The motor A can drive the lifting screw 8 to rotate, thereby driving the roller 7 sleeved in the lifting screw 8 to move up and down. The roller 7 is movably connected to the lifting screw 8 through a mounting part. The mounting part includes a mounting hole with an internal thread, which can be fitted onto the lifting screw 8. At the same time, a short rod is horizontally connected in the mounting part, and the roller 7 is inserted on the short rod. The roller 7 can rotate. When the motor A drives the lifting screw 8 to rotate, it drives the mounting part to move up and down along the lifting screw 8, thereby driving the roller 7 to move up and down accordingly.

[0023] Furthermore, four support frames 9 are fixedly installed on the bottom surface of the lower plate 2 (each located at one of the four corners of the lower plate 2). When the device is not moved using the lifting wheel mechanism, the support frames 9 provide support and stability. The support frames 9 are similar to short cylindrical structures. When the lifting screw 8 is driven by motor A to rotate, causing the roller 7 to move downwards to the ground, the device is moved via the roller 7 (at this time, the support frames 9 are flush with the roller 7, which serves as an auxiliary stabilizer). When the lifting screw 8 is driven by motor A to move the roller 7 upwards away from the ground, the device is supported by the support frames 9.

[0024] Furthermore, a control box 10, serving as the main control system of this device, is installed on the upper plate 1. The control box 10 is equipped with multiple control buttons and controls the pressure testing system through a PLC or other programs, processing information and issuing commands. The PLC system has high reliability, is suitable for industrial environments, and executes logic control very stably. By pressing the control buttons, the device can be started and stopped. The entire testing process is automatically controlled by software, and the pressure-time curve is displayed in real time, automatically judging the test results. The control box 10 extends through a line to the electric pressure testing pump 5 and the pressure testing cylinder on the lower plate 2, thereby controlling the pressure testing system. At the same time, the extension line is connected to the motor A in the lifting wheel mechanism, which can control the four sets of motors A to synchronously drive the lifting screw 8 to perform actions, avoiding errors during the movement of this device, which could lead to shaking or tilting.

[0025] In this embodiment, see Figures 1-3 For the coiling section 3, multiple coiling sections 3 are provided on the side of the electric test pump 5. There is a certain distance between the multiple coiling sections 3 to avoid mutual interference in the coiling of various cables and tubes 6. The coiling sections 3 synchronously coil the lines extending from the control box 10, thereby effectively avoiding messy lines. The coiling section 3 has a frame protruding around its central rod 4, thereby constraining a single cable within the frame. The length of the cable or tube 6 is adjusted by rotating the central rod 4. When needed, it can be stretched out. When not needed, the central rod 4 can be rotated in the opposite direction to store the cable back in the frame, preventing it from being scattered and affecting the normal operation of the test.

[0026] In this embodiment, see Figure 2 and Figure 3 For the upper plate 1, a fixed frame extends out from and is fixedly installed on the front edge of the upper plate 1. The fixed frame encloses the fixed fork-shaped plate and the movable plate 12 that can move along the fork-shaped plate. The fork-shaped plate is "X" shaped, and multiple holes B14 are opened on its four forked strips 11 along the forking direction. The multiple holes B14 are set at a certain distance from each other. At the same time, the movable plate 12 is installed along the direction of the forked strips 11. The movable plate 12 is similar to a rectangular plate structure. Multiple holes A13 are opened on its upper surface, so that the movable plate 12 can move along the forked plate and the holes A13 and B14 are locked together by bolts. This can extend the overall area of ​​the fixed frame and adapt to the multiple sizes of cylinders to fix various cylinders. A protruding strip is provided at the lower end of the movable plate 12 facing inward, and a groove 15 is provided on the left and right sides of the forked strips 11. The protruding strip and the groove 15 are inserted into each other, so that the movable plate 12 can only move along the direction of the forked strips 11.

[0027] Furthermore, a fixing component is provided next to the fixing frame. One end of the fixing component is also welded and fixed to the upper plate 1. The fixing component includes a fixing ring 16. A narrow plate extends vertically from one side of the upper plate 1. Multiple fixing rings 16 are arranged at equal intervals on the narrow plate. The long tube 6 is positioned by inserting it into the fixing ring 16.

[0028] It should be noted that most existing equipment is designed for the single function of testing specimen pressure, and its adaptability and practicality are relatively poor. In this solution, the specially designed wire harness storage unit 3 and the lifting wheel mechanism for movement are used to improve its adaptability and applicability in harsh industrial environments.

[0029] Although liquid pressure testing equipment used in industrial production and quality inspection has been developed for many years, it still has some problems and limitations: First, due to the large footprint and complicated installation and connection of the equipment, it is extremely inconvenient to move and cannot meet the needs of multi-workshop operation or field operation; Second, the long pipes 6 or cables used are messy or tangled, which requires them to be separated before use, wasting time and effort. Therefore, we need to adopt a simple and effective way to store or fix them; Third, for test cylinders, since there are various types and sizes of cylinders, it is necessary to design a structure that can flexibly fix the cylinders. Based on the above problems, this solution uses the gathering part 3 to store and fix the cables and long pipes 6. The rollers 7 controlled by the lifting screw 8 in the lifting wheel mechanism cooperate with the support column to realize the quick stop and start of the equipment. The equipment is equipped with a fixed frame structure. Through the cooperation between the fork plate and the movable plate 12, the overall area of ​​the fixed frame can be flexibly adjusted to fit the size of the cylinder for fixing.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure testing apparatus, characterized by: It includes a support frame, a converging part (3), and a lifting wheel mechanism; The support includes an upper plate (1) and a lower plate (2). An electric pressure testing pump (5) is placed on the upper surface of the lower plate (2), and the lower plate (2) and the upper plate (1) are connected by multiple vertical supports. The electric pressure testing pump (5) is connected to one end of a long tube (6). The converging part (3) includes a rotatable central rod (4). The long tube (6) is tightly wound around the central rod (4) in circles, causing the central rod (4) to rotate to the left. The long tube (6) is then loosened and the other end is pulled upwards. When the central rod (4) rotates to the right, the long tube (6) is tightened at the converging part (3) to prevent the long tube (6) from being scattered. The lifting wheel mechanism is set at the four corners of the lower plate (2). The lifting wheel mechanism includes a roller (7) and a lifting screw (8). The roller (7) is mounted on the lifting screw (8) through the mounting part. The lifting screw (8) is driven to make the roller (7) move downward until the roller (7) touches the ground, so that the device can be moved around to conduct experiments.

2. The pressure testing equipment according to claim 1, characterized in that: The bottom surface of the lower plate (2) is also provided with a support frame (9); a total of four support frames (9) are provided and are respectively vertically set at the four corners of the lower plate (2). By driving the lifting screw (8) to rotate, the roller (7) moves upward until the roller (7) is suspended in the air, and the equipment is supported on the ground by the support frame (9).

3. The pressure testing equipment according to claim 2, characterized in that: The upper and lower ends of the lifting screw (8) are fixed in a concave frame. The upper end of the lifting screw (8) passes through the upper surface of the concave frame and is connected to the motor A. The motor A drives the lifting screw (8) to rotate. The side plate of the concave frame is fixed to the lower plate (2), thereby installing the lifting wheel mechanism onto the lower plate (2).

4. A pressure testing apparatus as claimed in claim 1, wherein: The upper surface of the upper plate (1) is provided with a control box (10). The control box (10) extends through a line to connect to the electric pressure test pump (5) and the pressure test cylinder on the lower plate (2), thereby controlling the pressure test system. At the same time, the extension line is connected to the motor A at the four corners of the lower plate (2) to control the synchronous drive of the motor A.

5. A pressure testing apparatus as claimed in claim 4, wherein: The lower plate (2) is provided with multiple gathering parts (3) spaced at a certain distance. The lines extending from the control box (10) are gathered synchronously through the gathering parts (3) to avoid messy lines.

6. A pressure testing apparatus as claimed in claim 1, wherein: The upper plate (1) is mounted on the side of a fixing frame, which includes a fork-shaped plate and a movable plate (12). The fork-shaped plate is fixedly mounted on the side of the upper plate (1) and has four forked strips (11). Each forked strip (11) has multiple holes B (14), and the movable plate (12) also has multiple holes A (13). The movable plate (12) can move along the forked strips (11) and lock the holes A (13) and B (14) in correspondence with each other by bolts. This can extend the area of ​​the fixing frame and is suitable for fixing cylinders of various sizes.

7. A pressure testing apparatus as claimed in claim 1, wherein: The fastener includes a fixing ring (16); a narrow plate extends vertically from one side of the upper plate (1), and multiple fixing rings (16) are arranged at equal intervals on the narrow plate. The long tube (6) is positioned by inserting it into the fixing ring (16).

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