Pressure vessel pressure test mechanism

Abstract

The utility model provides a pressure vessel pressure test mechanism, which comprises a door-shaped frame, a moving lever, a sealing inflation and deflation piece, a first driving motor, a control panel and an auxiliary moving assembly, the moving lever is arranged on the opposite inner side of the door-shaped frame, the sealing inflation and deflation piece is arranged on the surface of the moving lever in a sliding mode, and the first driving motor is installed in the door-shaped frame. A control panel is installed on the side face of the n-shaped frame, an auxiliary moving assembly is arranged at the bottom of the n-shaped frame, the problem that the height of equipment is changed due to the fixing mode of an original pressure vessel pressure testing mechanism is solved, the pressure vessel pressure testing mechanism is reasonable in structure, clamping locking blocks are driven by moving plates which are close to each other to clamp moving wheels, and the pressure vessel pressure testing mechanism is convenient to use. Therefore, movement of the base is limited, the purpose of stabilizing equipment is achieved, operation is easy, and practicability is high.

Description

Technical Field

[0001] The utility model relates to a pressure testing mechanism for pressure vessels, belonging to the technical field of pressure testing of pressure vessels. Background Technique

[0002] A pressure vessel is a sealed device that bears a certain pressure and has extremely wide applications. Auxiliary machines (coolers, buffers, oil-water separators, gas storage tanks, evaporators, liquid coolant storage tanks) of various special compressors and refrigeration compressors are all pressure vessels, and pressure vessels need to be subjected to pressure tests according to the pressure test plan.

[0003] Chinese Patent No. CN219455427U proposes a pressure testing mechanism for pressure vessels. By arranging moving wheels at the bottom of the bracket, the overall device is convenient to move, and the moving wheels can be retracted and extended through a retracting and extending assembly, so that the device can be placed more stably, thus facilitating the pressure testing of pressure vessels. However, in this design, the retracting and extending assembly mainly drives the moving wheels into the storage cavity by an electric push rod. This retracting method will cause the device to drive the first cross plate and the sealing inflation and deflation part to have a certain displacement in the vertical direction, affecting the connection effect between the sealing inflation and deflation part and the pressure vessel, and the practicability is relatively low. Now, there is an urgent need for a pressure testing mechanism for pressure vessels to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a pressure testing mechanism for pressure vessels to solve the problems raised in the above background technology. The structure of the utility model is reasonable. By driving the clamping and locking blocks by the relatively close moving plates to clamp the moving wheels, the movement of the limiting base is restricted, so as to achieve the purpose of stabilizing the device, and the operation is simple and the practicability is strong.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical solutions: A pressure testing mechanism for pressure vessels includes a portal frame, a moving rod, a sealing inflation and deflation part, a first driving motor, a control panel and an auxiliary moving component. The moving rod is arranged on the relatively inner sides of the portal frame, the sealing inflation and deflation part is slidably arranged on the surface of the moving rod, the first driving motor is installed inside the portal frame, the control panel is installed on the side of the portal frame, and the auxiliary moving component is arranged at the bottom of the portal frame. The auxiliary moving component includes a base, moving wheels, moving plates and clamping and locking blocks. The base is welded and fixed to the lower end surface of the portal frame. The moving wheels are rotatably arranged inside the base. The moving plates are symmetrically arranged on the left and right sides of the moving wheels. The clamping and locking blocks are arranged on the side of the moving plates relatively close to the moving wheels.

[0006] Furthermore, a first positioning block is arranged at the top end inside the base, a second positioning block is arranged on the upper end surface of the moving plate, and the second positioning block closely slides along the surface of the first positioning block.

[0007] Furthermore, a first threaded rod and a second threaded rod are rotatably arranged inside the base through an external bearing member, and the first threaded rod and the second threaded rod are fixedly connected through a connecting flange.

[0008] Furthermore, a second driving motor is installed on the outer side surface of the base. The output end of the second driving motor is connected to the second threaded rod, and the input end of the second driving motor is electrically connected to the control panel through a wire.

[0009] Furthermore, several groups of the moving plates are arranged in the same specification. A threaded sleeve is arranged inside the moving plate, and several groups of the moving plates are respectively engaged with the first threaded rod and the second threaded rod through the threaded sleeve.

[0010] Furthermore, a limiting rod is arranged inside the base, a limiting hole is formed on the surface of the moving plate, and the limiting rod passes through the surface of the moving plate through the limiting hole.

[0011] Furthermore, a lead screw is clamped at the output end of the first driving motor. Connecting blocks are symmetrically arranged at both ends of the moving rod. A threaded hole is formed on the surface of the connecting block and the threaded hole is engaged with the lead screw.

[0012] Furthermore, a guide rail groove is formed on the surface of the moving rod. Several groups of the airtight inflation and deflation members are arranged in the same specification, and the airtight inflation and deflation members are slidably clamped with the guide rail groove.

[0013] Advantages of the present utility model: For a pressure vessel pressure testing mechanism of the present utility model, since the control panel controls the second driving motor to start in the present utility model, the second driving motor drives the second threaded rod to rotate. The second threaded rod drives the first threaded rod to rotate coaxially through the connecting flange. Since the threaded sleeve is respectively engaged with the first threaded rod and the second threaded rod, the rotation of the second threaded rod makes the moving plates on both sides approach each other, and drives the clamping and locking blocks to clamp and fix the moving wheels, so as to achieve the effect of fixing and limiting the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0015] Figure 1 is a schematic structural diagram of a pressure vessel pressure testing mechanism of the present utility model;

[0016] Figure 2 is a schematic structural diagram of another perspective of a pressure vessel pressure testing mechanism of the present utility model;

[0017] Figure 3Schematic diagram of the partial sectional view of the auxiliary moving component in a pressure vessel pressure test mechanism of the present utility model;

[0018] Figure 4 Schematic diagram of the first threaded rod and the second threaded rod in a pressure vessel pressure test mechanism of the present utility model;

[0019] Figure 5 Schematic diagram of the moving plate and the clamping and locking block in a pressure vessel pressure test mechanism of the present utility model.

[0020] In the figure: 1 - portal frame, 2 - moving rod, 21 - guide rail groove, 22 - connecting block, 23 - screw hole, 3 - sealing, inflating and deflating component, 4 - first driving motor, 41 - lead screw, 5 - control panel, 6 - auxiliary moving component, 61 - base, 62 - first positioning block, 63 - moving wheel, 64 - first threaded rod, 641 - connecting flange, 65 - second threaded rod, 66 - moving plate, 661 - second positioning block, 67 - limiting hole, 68 - threaded sleeve, 69 - clamping and locking block, 611 - limiting rod, 612 - second driving motor. Detailed implementation manners

[0021] To make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation manners.

[0022] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a pressure vessel pressure test mechanism, including a portal frame 1, a moving rod 2, a sealing, inflating and deflating component 3, a first driving motor 4, a control panel 5 and an auxiliary moving component 6. The moving rod 2 is arranged on the opposite inner sides of the portal frame 1, the sealing, inflating and deflating component 3 is slidably arranged on the surface of the moving rod 2, the first driving motor 4 is installed inside the portal frame 1, the control panel 5 is installed on the side surface of the portal frame 1, and the auxiliary moving component 6 is arranged at the bottom of the portal frame 1.

[0023] The auxiliary moving component 6 includes a base 61, a moving wheel 63, a moving plate 66 and a clamping and locking block 69. The base 61 is welded and fixed to the lower end surface of the portal frame 1. The moving wheel 63 is rotatably arranged inside the base 61. The moving plates 66 are symmetrically arranged on the left and right sides of the moving wheel 63. The clamping and locking blocks 69 are arranged on the side of the moving plates 66 relatively close to the moving wheel 63. This design solves the problem that the fixed method of the original pressure vessel pressure test mechanism will cause the height of the equipment to change.

[0024] As the first embodiment of the present utility model: a first positioning block 62 is provided at the inner top end of the base 61, a second positioning block 661 is provided on the upper end surface of the moving plate 66, and the second positioning block 661 closely slides along the surface of the first positioning block 62. The first positioning block 62 and the second positioning block 661 can play a certain limiting effect on the movement of the moving plate 66. A first threaded rod 64 and a second threaded rod 65 are rotatably arranged inside the base 61 through an external bearing member, and the first threaded rod 64 and the second threaded rod 65 are fixedly connected through a connecting flange 641. The second threaded rod 65 can drive the first threaded rod 64 to rotate coaxially through the connecting flange 641. A second driving motor 612 is installed on the outer side surface of the base 61, and the output end of the second driving motor 612 is connected to the second threaded rod 65. The input end of the second driving motor 612 is electrically connected to the control panel 5 through a wire. The second driving motor 612 can drive the second threaded rod 65 to rotate, and the control panel 5 can control the opening and closing of the second driving motor 612. A number of groups of moving plates 66 with the same specifications are provided. A threaded sleeve 68 is arranged inside the moving plate 66. The number of groups of moving plates 66 are respectively engaged with the first threaded rod 64 and the second threaded rod 65 through the threaded sleeve 68. The rotation of the first threaded rod 64 and the second threaded rod 65 can drive the moving plates 66 to move relatively through the threaded sleeve 68. A limiting rod 611 is arranged inside the base 61, a limiting hole 67 is formed on the surface of the moving plate 66, and the limiting rod 611 passes through the surface of the moving plate 66 through the limiting hole 67. The limiting rod 611 and the limiting hole 67 make the movement of the moving plate 66 more stable. The output end of the first driving motor 4 is clamped with a lead screw 41. Connecting blocks 22 are symmetrically arranged at both ends of the moving bar 2. A threaded hole 23 is formed on the surface of the connecting block 22 and the threaded hole 23 is engaged with the lead screw 41. The rotation of the lead screw 41 can drive the moving bar 2 to move through the connecting block 22. A guide rail groove 21 is formed on the surface of the moving bar 2. A number of groups of airtight inflation and deflation members 3 with the same specifications are provided. The airtight inflation and deflation members 3 are slidably engaged with the guide rail groove 21, and the airtight inflation and deflation members 3 can move along the surface of the moving bar 2 through the guide rail groove 21.

[0025] As the second embodiment of the present utility model: The user moves the portal frame 1 to directly above the pressure vessel to be detected through the base 61 and the moving wheels 63. Subsequently, the user controls the second driving motor 612 to start through the control panel 5. The second driving motor 612 drives the second threaded rod 65 to rotate. The second threaded rod 65 drives the first threaded rod 64 to rotate coaxially through the connecting flange 641. Since the threaded sleeve 68 meshes with the first threaded rod 64 and the second threaded rod 65 respectively, the rotation of the second threaded rod 65 causes the moving plates 66 on both sides to approach each other, and drives the clamping and locking block 69 to clamp and fix the moving wheels 63, thereby achieving the effect of fixing and limiting the base 61. Subsequently, the user operates the control panel 5 to control the first driving motor 4 to start. The first driving motor 4 drives the lead screw 41 to rotate. The rotation of the lead screw 41 drives the moving rod 2 to move vertically through the connecting block 22 and the screw hole 23, and at the same time adjusts the position of the sealing, inflating and deflating member 3 through the guide groove 21, so that the sealing, inflating and deflating member 3 is matched and connected with the pressure vessel below. Subsequently, the pressure test of the pressure vessel can be carried out.

[0026] It should be noted that in the existing pressure test, the sealing, inflating and deflating member 3 is usually used to inflate the pressure vessel and keep it in a sealed state, and then the internal air pressure is detected after several hours to see if it has dropped.

[0027] The above shows and describes the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 pressure test mechanism for a pressure vessel, comprising a door frame, a moving bar, a sealing, inflating and deflation member, a first driving motor, a control panel and an auxiliary moving assembly, characterized in that: The door frame is provided with a moving bar on the inner side thereof, a sealing inflatable and deflation member is slidably provided on the surface of the moving bar, a first driving motor is installed inside the door frame, a control panel is installed on the side of the door frame, and an auxiliary moving component is provided at the bottom of the door frame; The auxiliary moving component includes a base, a moving wheel, a moving plate and a clamping locking block. The base is welded and fixed to the lower end surface of the door frame. A moving wheel is rotatably arranged inside the base. Moving plates are symmetrically arranged on the left and right sides of the moving wheel. A clamping locking block is arranged on the side of the moving plate relatively close to the moving wheel.

2. A pressure vessel pressure testing mechanism according to claim 1, characterized in that: A first positioning block is arranged at the top of the inner part of the base, and a second positioning block is arranged at the upper end surface of the movable plate, and the second positioning block slides closely along the surface of the first positioning block.

3. A pressure vessel pressure testing mechanism according to claim 1, characterized in that: A first threaded rod and a second threaded rod are rotatably arranged inside the base through an external bearing component, and the first threaded rod and the second threaded rod are fixedly connected through a connecting flange.

4. A pressure vessel pressure testing mechanism according to claim 3, characterized in that: A second drive motor is installed on the outer side of the base, an output end of the second drive motor is connected to the second threaded rod, and an input end of the second drive motor is electrically connected to the control panel through a wire.

5. A pressure vessel pressure testing mechanism according to claim 3, characterized in that: The movable plates are provided in a plurality of groups with the same specifications, a threaded sleeve is provided inside the movable plates, and the plurality of movable plates are respectively meshed with the first threaded rod and the second threaded rod through the threaded sleeve.

6. A pressure testing mechanism for a pressure vessel according to claim 1, characterized in that: A limiting rod is arranged inside the base, a limiting hole is provided on the surface of the moving plate, and the limiting rod passes through the surface of the moving plate through the limiting hole.

7. A pressure vessel pressure testing mechanism according to claim 1, characterized in that: A lead screw is clamped at the output end of the first driving motor, and connecting blocks are symmetrically arranged at both ends of the moving rod. Screw holes are opened on the surface of the connecting blocks and the screw holes are meshed with the lead screw.

8. A pressure testing mechanism for a pressure vessel according to claim 1, characterized in that: A guide rail groove is provided on the surface of the moving rod, and a plurality of groups of the sealing, inflating and deflating parts are provided with the same specifications, and the sealing, inflating and deflating parts are slidably engaged with the guide rail groove.

Images