Air tightness testing device for steel pipe assembly

Abstract

The utility model discloses a steel pipe assembly air tightness testing device, which belongs to the technical field of hydraulic system testing equipment and comprises a workbench, a connecting plate is arranged at the top of the workbench, an electric push rod is connected to the side wall of the connecting plate, a fixing part of the electric push rod is fixed to the side wall of a side plate, and the bottom of the side plate is welded to the top of the workbench; the two vertical plates are connected with the fixing part of the electric push rod in a sleeving mode, a fixing block facilitating supporting is welded between the two vertical plates, and an arc-shaped storage groove is formed in the top of the fixing block; and the connector is fixed with the connecting plate, one end of the connector is provided with a connecting nozzle which is convenient for connection of testing equipment, the other side of the connector is provided with a port which is convenient for connection during the sealing test of the steel pipe, and the port is provided with a pressing groove which is convenient for fixation. When the steel pipe assembly air tightness testing device is used for testing the air tightness of a steel pipe assembly, the hydraulic rod is directly controlled to complete connection after the steel pipe is fixed, the participation of manpower is reduced, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic system testing equipment, in particular to a steel pipe assembly air tightness testing device. Background Art

[0002] A hydraulic system is a system that uses oil as the working medium, utilizes the pressure energy of the oil, and drives the hydraulic actuator to work by controlling valves and other components. The steel pipes that make up the hydraulic oil pipeline need to be tested for tightness before assembly. Existing test equipment generally uses a sealing head to complete the sealing of the steel pipe, and then completes the air tightness test through the connection nozzle set on the sealing head. However, when using this device for testing, it is necessary to connect and fix the connection head to the test pipeline, and the repeated operation is not convenient to use.

[0003] After searching, for example (authorization announcement number 3CN210269050U) a steel pipe assembly air tightness test device includes a first quick clamp, the first quick clamp includes a first slotted splint, a first quick clamp mechanism and a first sealing head, the first slotted splint is provided with a first opening slot, the first quick clamp mechanism is mounted on the first slotted splint, the first sealing head is mounted on the first quick clamp mechanism and is located above the first opening slot, and the first sealing head is provided with an air outlet at one end facing the first opening slot, and a trachea joint connected to the air outlet is provided on the side of the first sealing head or at one end away from the first opening slot. This device solves the problem that the existing equipment cannot be easily connected when in use, but the device needs to manually complete the connection of the pipeline when performing the front and rear operations of the steel pipe sealing test, and the repeated operations reduce the testing efficiency of the device. Utility Model Content

[0004] The utility model aims to provide a steel pipe assembly air tightness testing device to solve the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a steel pipe assembly air tightness test device, comprising:

[0006] A workbench, the top of which is provided with a connecting plate for easy fixation, the side wall of the connecting plate is connected with an electric push rod for easy retraction, the fixing part of the electric push rod is fixed to the side wall of the side plate, and the bottom of the side plate is welded to the top of the workbench;

[0007] Two vertical plates, the vertical plates are sleeved with the fixed part of the electric push rod, a fixed block for easy support is welded between the two vertical plates, and a circular arc storage groove is provided on the top of the fixed block;

[0008] The connector is fixed to the connecting plate, one end of the connector is provided with a connecting nozzle for easy connection of the test equipment, the other side of the connector is provided with a port for easy connection during the steel pipe sealing test, and the port is provided with a pressing groove for easy fixation.

[0009] As a preferred embodiment, a through circular hole is provided in the middle of the side plate for easy connection, and an arc-shaped pressing plate is movably connected to the inner wall of the circular hole for easy lifting.

[0010] As a preferred embodiment, the top of the side plate is rotatably connected to a threaded rod, the top of the threaded rod is welded with a handle for easy driving, and the bottom of the threaded rod passes through a round hole and is rotatably connected to the top of the pressure plate.

[0011] As a preferred embodiment, a straight plate is provided on the back side of the circular hole to facilitate the support of the test steel pipe, and an arc groove is provided on the top of the straight plate to facilitate fixing and limiting.

[0012] As a preferred embodiment, a movable plate for easy connection is welded at the bottom of the straight plate, and two symmetrical T-shaped slide plates are welded on the top of the movable plate. The slide plates are slidably connected to the slide rails arranged at the bottom of the workbench.

[0013] As a preferred embodiment, connecting blocks for easy fixation are welded on both sides of the moving plate, the other side of the connecting blocks is welded to the moving part of the linear motor, and the fixed part of the linear motor is welded to the bottom of the workbench.

[0014] As a preferred embodiment, connecting blocks for easy fixation are welded on both sides of the moving plate, the other side of the connecting blocks is welded to the moving part of the linear motor, and the fixed part of the linear motor is welded to the bottom of the workbench.

[0015] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0016] The steel pipe assembly air tightness testing device is provided with a vertical plate, a through-type circular hole and a fixed block. The tops of the straight plate and the fixed block are provided with the same arc groove and storage groove for fixing and limiting the steel pipe for testing the airtightness. The pressure plate arranged inside the circular hole is cooperated with the threaded rod and the turning handle to complete the fixation of the steel pipe, so that the structure is stable and easy to operate when the steel pipe is tested. A moving plate slidably connected to the workbench is welded to the bottom of the straight plate, and the moving plate can be driven to move by controlling the moving part of the linear motor, so that the device can be suitable for testing steel pipes of different lengths and is easy to use.

[0017] The steel pipe assembly air tightness testing device has a side plate welded on the top of the workbench, two symmetrical electric push rods welded on one side of the side plate, a connecting plate is fixed to the moving part of the electric push rod, a connecting head is embedded and installed inside the connecting plate, a connected port is located on the side close to the side plate, a slot abutting against the end of the steel pipe is arranged at the port position, a rubber ring for increasing the sealing is arranged inside the slot, a connecting nozzle is integrally formed on the other side of the connecting head, a groove for facilitating the placement of the rubber ring is arranged on the outer wall of the connecting nozzle, the connecting pipe of the test equipment is fixed to the connecting nozzle, ventilation of the steel pipe is completed, air tightness testing of the hydraulic assembly steel pipe is convenient, and repeated operations by the operator are avoided under the action of the electric push rod and the linear motor, thereby improving the testing efficiency of the device.

[0018] The device solves the problem that the existing equipment needs operators to repeatedly operate and fix when conducting the sealing test of the steel pipe assembly, thereby improving the testing efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a structural schematic diagram of a steel pipe assembly air tightness testing device in an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of another viewing angle of the workbench in the embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the movable plate in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the connector in the embodiment of the utility model.

[0024] Description of reference numerals:

[0025] In the figure: 1. workbench; 2. side panel; 3. electric push rod; 4. turning handle; 5. vertical plate; 6. connecting head; 7. fixing block; 8. linear motor; 9. moving plate; 10. straight plate; 11. sliding plate; 12. round hole; 13. pressing plate; 14. connecting plate; 15. pressing groove; 16. connecting block; 17. groove; 18. connecting nozzle. DETAILED DESCRIPTION

[0026] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0027] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0028] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0029] Example

[0030] like Figures 1 to 4 As shown,

[0031] This embodiment includes:

[0032] The workbench 1 has supporting legs welded at the bottom of the workbench 1 for easy support. The arrangement of the supporting legs enables the linear motor 8 welded at the bottom of the workbench 1 to operate normally and is easy to use.

[0033] A connecting plate 14 for easy fixation is provided on the top of the workbench 1. An electric push rod 3 for easy contraction and adjustment is connected to one side of the connecting plate 14. The fixed part of the electric push rod 3 is fixed to the side wall of the side plate 2. The bottom of the side plate 2 is welded to the top of the workbench 1. By controlling the extension and retraction of the moving part of the electric push rod 3, the fixed connecting plate 14 is driven to move, so that the connecting head 6 fixed on the connecting plate 14 is moved, and the pressure groove 15 set at the port of the connecting head 6 is connected to the port of the tested steel pipe, and the rubber ring connection for improving the sealing performance set inside the pressure groove 15 is used to improve the practicability of the device.

[0034] Two vertical plates 5, the bottoms of the two vertical plates 5 are welded to the top of the workbench 1, and are symmetrically distributed on the top of the workbench 1. The vertical plates 5 are socketed with the fixed parts of the electric push rod 3. Through the joint action of the side plates 2 and the vertical plates 5, the moving part of the electric push rod 3 can always maintain the stability of the overall structure of the device when it is extended and retracted, so that it is easy to use.

[0035] A fixed block 7 for easy support is welded between the two vertical plates 5. A circular arc-shaped storage groove is provided on the top of the fixed block 7. The setting of the storage groove can support the steel pipe for air tightness test placed on the top of the fixed block 7, so that the square pipe always remains stable and is easy to fix and detect.

[0036] Connector 6 is fixed to connecting plate 14, one end of connector 6 is provided with connecting nozzle 18 for easy connection of test equipment, a groove 17 is provided on the outer side of connecting nozzle 18 for easy fixation and increased air tightness, a rubber ring for increasing sealing effect is provided in groove 17, which is fixed to connecting nozzle 18 through connecting pipe of test equipment to complete the connection between test equipment and test steel pipe.

[0037] A port is provided on the other side of the connector 6 for connection during the steel pipe sealing test. The port is provided with a pressure groove 15 for easy fixation. The pressure groove 15 abuts against the end of the test steel pipe. Under the action of the rubber ring arranged inside the pressure groove 15, the connection is made tighter. In order to always maintain the connection sealing of the connector 6, a new rubber ring needs to be replaced for each test, and with the assistance of the moving part of the electric push rod 3, the connecting plate 14 drives the connector 6 to move, so that the end of the steel pipe abuts against the pressure groove 15 more tightly, which is convenient for use.

[0038] Two symmetrical slide rails are provided at the bottom of the workbench 1, and the slide rails are slidably connected to the T-shaped slide plate 11. The slide plate 11 is symmetrically welded to the top of the movable plate 9. A straight plate 10 is also welded to the top of the movable plate 9. The top of the straight plate 10 is provided with an arc groove for convenient fixation of the steel pipe. Two connecting blocks 16 are welded on both sides of the movable plate 9. The connecting blocks 16 are welded to the movable part of the linear motor 8. The fixed part of the linear motor 8 is connected to the bottom of the workbench 1. By controlling the movement of the movable part of the linear motor 8, the position of the movable plate 9 is adjusted, so as to facilitate the fixation of the steel pipe for auxiliary testing.

[0039] A through circular hole 12 is provided in the middle of the side plate 2, and a movable arc-shaped pressure plate 13 is provided inside the circular hole 12. A threaded rod is rotatably connected to the top of the pressure plate 13, and the threaded rod is threadedly connected to the top of the side plate 2, and a turning handle 4 for easy application is welded on the top of the threaded rod. The turning handle 4 is driven to rotate, which drives the pressure plate 13 to move, and the fixing block 7 and the straight plate 10 are provided to fix the steel pipe, thereby improving the stability of the structure when the device is subjected to a sealing test.

[0040] The electric push rod 3 and the linear motor 8 are both conventional instruments. Their working principles, sizes and models are irrelevant to the functions of the present application, so they will not be described in detail. The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0041] How it works

[0042] The steel pipe assembly air tightness test device, when using the device, controls the movement of the moving part of the linear motor 8 according to the length of the steel pipe, drives the moving plate 9 to move under the action of the slide plate 11, and then, the steel pipe is sequentially passed through the arc groove, the circular hole 12 and the storage groove on the fixed block 7 provided on the straight plate 10, and the turning handle 4 is turned to drive the pressing plate 13 to move, so as to complete the fixing of the steel pipe inside the circular hole 12;

[0043] Then connect the connecting pipe of the air tightness test equipment to the connecting nozzle 18, control the moving part of the electric push rod 3 to contract, drive the connecting head 6 and the connecting plate 14 to move, so that the pressing groove 15 set on the connecting head 6 does not abut against the steel pipe, complete the connection of the structure, and then conduct ventilation testing.

[0044] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel pipe assembly air tightness test device, characterized in that: include: A workbench (1), wherein a connecting plate (14) is provided on the top of the workbench (1) for easy fixation, a side wall of the connecting plate (14) is connected to an electric push rod (3) for easy retraction, a fixing portion of the electric push rod (3) is fixed to the side wall of a side plate (2), and a bottom of the side plate (2) is welded to the top of the workbench (1); Two vertical plates (5), the vertical plates (5) being sleeved with the fixing part of the electric push rod (3), a fixing block (7) for supporting is welded between the two vertical plates (5), and a circular arc-shaped storage groove is provided on the top of the fixing block (7); A connector (6) is fixed to a connecting plate (14), one end of the connector (6) is provided with a connecting nozzle (18) for facilitating connection of a test device, the other side of the connector (6) is provided with a port for facilitating connection during a steel pipe sealing test, and the port is provided with a pressing groove (15) for facilitating fixation.

2. The air tightness testing device for a steel pipe assembly according to claim 1, characterized in that: A through-type circular hole (12) is provided in the middle of the side plate (2) for easy connection, and an arc-shaped pressing plate (13) is movably connected to the inner wall of the circular hole (12) for easy lifting.

3. The air tightness testing device for a steel pipe assembly according to claim 2, characterized in that: The top of the side plate (2) is rotatably connected to a threaded rod, the top of the threaded rod is welded with a turning handle (4) for easy driving, and the bottom of the threaded rod passes through a circular hole (12) and is rotatably connected to the top of the pressing plate (13).

4. The air tightness testing device for a steel pipe assembly according to claim 3, characterized in that: A straight plate (10) is provided on the back side of the circular hole (12) for facilitating the support of the test steel pipe, and an arc groove is provided on the top of the straight plate (10) for facilitating fixing and limiting.

5. The air tightness testing device for a steel pipe assembly according to claim 4, characterized in that: A movable plate (9) for easy connection is welded at the bottom of the straight plate (10), and two symmetrical T-shaped slide plates (11) are welded at the top of the movable plate (9). The slide plates (11) are slidably connected to a slide rail arranged at the bottom of the workbench (1).

6. The air tightness testing device for a steel pipe assembly according to claim 5, characterized in that: Connecting blocks (16) for easy fixation are welded on both sides of the movable plate (9), the other side of the connecting block (16) is welded to the movable part of the linear motor (8), and the fixed part of the linear motor (8) is welded to the bottom of the workbench (1).

7. The air tightness testing device for a steel pipe assembly according to claim 1, characterized in that: An integrally formed connection nozzle (18) is provided on a side of the connection head (6) away from the port, a groove (17) is provided on the outer peripheral side of the connection nozzle (18) to increase the overall sealing performance of the device, and a rubber ring is provided inside the groove (17).

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