Quality detection device for pressure pipeline of special equipment

Abstract

The utility model relates to the technical field of detection devices, in particular to a special equipment pressure pipeline quality detection device which comprises a bottom plate, and a pipeline workpiece is arranged above the bottom plate. The screw rod is driven by the motor to rotate clockwise, so that the two nut seats are close to each other, the nut seats drive the clamping seats to be close to each other to clamp and fix a pipeline workpiece, the two ends of the pipeline workpiece are embedded into the V-shaped ring grooves, and the V-shaped sealing sleeves are extruded and deformed to fill gaps between the pipeline workpiece and the clamping seats, so that the pipeline workpiece is in a sealed state; the air inlet pipe is connected with an external air pump, air is pumped into the fixed pipe, the internal pressure of the pipeline workpiece and the air bag rises until the pressure gauge reaches a preset reading, after the external air pump is closed, if the reading of the pressure gauge is observed to be continuously reduced, the pipeline workpiece leaks, and the sealing performance and the quality do not reach the standard, and otherwise, the pipeline workpiece is a qualified product. Therefore, the sealing performance of the pressure pipeline can be effectively detected, and convenience is brought to the quality detection work of the pressure pipeline of special equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a quality detection device for a pressure pipeline of special equipment. Background Art

[0002] Special equipment refers to eight categories of equipment involving life safety and high risk, including boilers, pressure vessels (including gas cylinders), pressure pipes, elevators, lifting machinery, passenger ropeways, large amusement facilities, and special motor vehicles within the site (factory). Pressure pipes are one type of special equipment, which refers to tubular equipment used to transport gas or liquid under a certain pressure.

[0003] When producing special equipment pressure pipelines, it is necessary to strictly ensure the production quality of the pipelines, including indicators such as sealing and bearing pressure. Among them, the sealing of special equipment pressure pipelines is an important part of pressure pipeline quality inspection. How to accurately detect whether there is leakage in the pressure pipeline and ensure safe use is one of the problems that need to be solved in the current special equipment pressure pipeline quality inspection work; for this reason, a special equipment pressure pipeline quality inspection device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a quality detection device for pressure pipelines of special equipment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a special equipment pressure pipeline quality inspection device, comprising a base plate, a pipeline workpiece is provided above the base plate, a sealing mechanism for fixing and sealing the pipeline workpiece is installed on the upper surface of the base plate, and a detection mechanism for detecting the sealing quality of the pipeline workpiece is provided on the sealing mechanism;

[0006] The sealing mechanism includes two fixing plates, which are symmetrically fixedly connected to the upper surface of the base plate, and a screw is rotatably connected between the opposite sides of the two fixing plates through a bearing. A motor is installed on the right side of the upper surface of the base plate, and one end of the output shaft of the motor passes through the fixing plate and is fixedly connected to the right end of the screw. The outer side wall of the screw is symmetrically threaded with two nut seats, and the upper surface of the nut seat is fixedly connected to a connecting plate, and the upper surface of the connecting plate is fixedly connected to a clamping seat, and a V-shaped ring groove is opened on the opposite side of the two clamping seats, and a V-shaped sealing sleeve is bonded to the inner side wall of the V-shaped ring groove;

[0007] The detection mechanism includes a fixed tube, an inner side wall of the clamp seat is fixedly connected to the fixed tube, the upper surface of the fixed tube is connected to the air intake pipe, the right end of the fixed tube is connected to the airbag, the right side wall of the airbag is connected to a connecting tube, and the right end of the connecting tube is installed with a pressure gauge.

[0008] As a further preferred embodiment of the present technical solution: two positioning rods are symmetrically fixedly connected between opposite sides of the two fixing plates, and the positioning rods are slidably connected to the nut seats.

[0009] As a further preferred embodiment of the present technical solution: two brackets are symmetrically fixedly connected to the left side of the upper surface of the base plate, and the pipeline workpiece is placed on the upper surface of the brackets.

[0010] As a further preferred embodiment of the present technical solution: a valve is installed on the outer side wall of the air intake pipe.

[0011] As a further preferred embodiment of the present technical solution: a pressure relief valve is installed on the right side of the outer side wall of the fixed pipe.

[0012] As a further preferred embodiment of the present technical solution: a vertical plate is fixedly connected to the rear side of the upper surface of the base plate, a control panel is installed on the upper front surface of the vertical plate, and the electrical output end of the control panel is electrically connected to the electrical input end of the motor through a wire.

[0013] As a further preferred embodiment of the present technical solution: a display panel is installed on the top of the front surface of the vertical panel, and the electrical output end of the pressure gauge is electrically connected to the electrical input end of the display panel through a wire.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model drives the screw to rotate clockwise by a motor, so that the two nut seats approach each other, and the nut seats drive the clamping seats to approach each other to clamp and fix the pipeline workpiece, and the two ends of the pipeline workpiece are embedded in the V-shaped ring groove. The V-shaped sealing sleeve is squeezed and deformed to fill the gap between the pipeline workpiece and the clamping seat, so that the pipeline workpiece is in a sealed state, and the air inlet pipe is connected to the external air pump, and the gas is pumped into the fixed pipe. The internal pressure of the pipeline workpiece and the airbag increases until the pressure gauge reaches a predetermined reading. After the external air pump is turned off, if the pressure gauge reading is observed to continue to decrease, it means that there is a leak in the pipeline workpiece, and the sealing performance and quality are not up to standard. Otherwise, it is a qualified product, thereby effectively detecting the sealing performance of the pressure pipeline, and bringing convenience to the quality inspection work of the pressure pipeline of special equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a left-side structural schematic diagram of the present utility model;

[0017] Figure 2 It is a right side structural schematic diagram of the present utility model;

[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0019] Figure 4 For this utility model Figure 3 A magnified view of the structure of area A;

[0020] Figure 5 This is a schematic diagram of the structure of the bracket and the pipeline workpiece in the utility model;

[0021] Figure 6 This is a structural diagram of the nut seat and the connecting plate in the utility model;

[0022] Figure 7 It is a schematic cross-sectional structural diagram of the clamping seat in the present utility model.

[0023] In the picture:

[0024] 1. Bottom plate; 2. Pipe workpiece; 3. Sealing mechanism; 4. Detection mechanism; 5. Vertical plate; 6. Control panel; 7. Display panel;

[0025] 31. Fixing plate; 32. Screw; 33. Motor; 34. Nut seat; 35. Connecting plate; 36. Clamp seat; 37. V-shaped ring groove; 38. V-shaped sealing sleeve; 39. Positioning rod; 310. Bracket;

[0026] 41. Fixed pipe; 42. Inlet pipe; 43. Air bag; 44. Connecting pipe; 45. Pressure gauge; 46. Valve; 47. Pressure relief valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "installed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0029] See also Figure 1-7The utility model provides a technical solution: a special equipment pressure pipeline quality detection device, comprising a base plate 1, a pipeline workpiece 2 is provided above the base plate 1, a sealing mechanism 3 for fixing and sealing the pipeline workpiece 2 is installed on the upper surface of the base plate 1, and a detection mechanism 4 for detecting the sealing quality of the pipeline workpiece 2 is provided on the sealing mechanism 3;

[0030] The sealing mechanism 3 includes two fixing plates 31, which are symmetrically fixed to the upper surface of the base plate 1. A screw 32 is rotatably connected between the opposite sides of the two fixing plates 31 through a bearing. A motor 33 is installed on the right side of the upper surface of the base plate 1. One end of the output shaft of the motor 33 passes through the fixing plate 31 and is fixedly connected to the right end of the screw 32. Two nut seats 34 are symmetrically threaded on the outer wall of the screw 32. A connecting plate 35 is fixedly connected to the upper surface of the nut seat 34. A clamping seat 36 is fixedly connected to the upper surface of the connecting plate 35. A V-shaped ring groove 37 is formed on the opposite side of the two clamping seats 36. A V-shaped sealing sleeve 38 is bonded to the inner side wall of the V-shaped ring groove 37.

[0031] The detection mechanism 4 includes a fixed tube 41, and the inner side wall of a clamp seat 36 is fixedly connected to the fixed tube 41. The upper surface of the fixed tube 41 is connected to the air inlet pipe 42, and the right end of the fixed tube 41 is connected to the airbag 43. The right side wall of the airbag 43 is connected to the connecting tube 44, and the right end of the connecting tube 44 is installed with a pressure gauge 45; the airbag 43 is made of high-strength materials such as nitrile rubber and can withstand high-pressure environments.

[0032] Under the above setting, the motor 33 drives the screw 32 to rotate clockwise, so that the two nut seats 34 approach each other, and the nut seats 34 drive the clamping seats 36 to approach each other to clamp and fix the pipe workpiece 2. The two ends of the pipe workpiece 2 are embedded in the V-shaped ring groove 37, and the V-shaped sealing sleeve 38 is squeezed and deformed to fill the gap between the pipe workpiece 2 and the clamping seat 36, so that the pipe workpiece 2 is in a sealed state. The air inlet pipe 42 is connected to the external air pump, and the gas is pumped into the fixed pipe 41. The internal pressure of the pipe workpiece 2 and the airbag 43 increases until the pressure gauge 45 reaches a predetermined reading. After turning off the external air pump, if the pressure gauge 45 reading is observed to continue to decrease, it means that there is a leak in the pipe workpiece 2, and the sealing performance and quality are not up to standard. Otherwise, it is a qualified product, thereby effectively detecting the sealing performance of the pressure pipeline.

[0033] In this embodiment, specifically: two positioning rods 39 are symmetrically fixedly connected between the opposite sides of the two fixing plates 31, and the positioning rods 39 are slidingly connected to the nut seat 34; the nut seat 34 slides on the outer wall of the positioning rod 39 to prevent the nut seat 34 from rotating with the screw rod 32.

[0034] In this embodiment, specifically: two brackets 310 are symmetrically fixedly connected to the left side of the upper surface of the base plate 1 , and the pipe workpiece 2 is placed on the upper surface of the brackets 310 to support the pipe workpiece 2 .

[0035] In this embodiment, specifically: a valve 46 is installed on the outer wall of the air inlet pipe 42; and the valve 46 is closed after the external air pump stops to prevent gas leakage.

[0036] In this embodiment, specifically: a pressure relief valve 47 is installed on the right side of the outer wall of the fixed pipe 41; after the detection is completed, the pressure relief valve 47 is opened to reduce the pressure inside the airbag 43 and the pipeline workpiece 2.

[0037] In this embodiment, specifically: a vertical plate 5 is fixedly connected to the rear side of the upper surface of the base plate 1, a control panel 6 is installed on the upper front surface of the vertical plate 5, and the electrical output end of the control panel 6 is electrically connected to the electrical input end of the motor 33 through a wire; this is convenient for controlling the working state of the motor 33.

[0038] In this embodiment, specifically: a display board 7 is installed on the top of the front surface of the vertical board 5, and the electrical output end of the pressure gauge 45 is electrically connected to the electrical input end of the display board 7 through a wire; this facilitates more intuitive observation of the reading of the pressure gauge 45.

[0039] The working principle of the present invention is: the motor 33 drives the screw 32 to rotate clockwise, so that the two nut seats 34 approach each other, and the nut seats 34 drive the clamping seats 36 to approach each other to clamp and fix the pipeline workpiece 2. The two ends of the pipeline workpiece 2 are embedded in the V-shaped ring groove 37, and the V-shaped sealing sleeve 38 is squeezed and deformed to fill the gap between the pipeline workpiece 2 and the clamping seat 36, so that the pipeline workpiece 2 is in a sealed state. The air inlet pipe 42 is connected to the external air pump, and the gas is pumped into the fixed pipe 41. The internal pressure of the pipeline workpiece 2 and the airbag 43 increases until the pressure gauge 45 reaches a predetermined reading. After turning off the external air pump, if the reading of the pressure gauge 45 is observed to continue to decrease, it means that there is a leak in the pipeline workpiece 2, and the sealing performance and quality are not up to standard. Otherwise, it is a qualified product, thereby effectively detecting the sealing performance of the pressure pipeline, and bringing convenience to the quality inspection work of the pressure pipeline of special equipment.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Special equipment pressure pipeline quality inspection device, characterized by: The invention comprises a base plate (1), a pipe workpiece (2) is provided above the base plate (1), a sealing mechanism (3) for fixing and sealing the pipe workpiece (2) is installed on the upper surface of the base plate (1), and a detection mechanism (4) for detecting the sealing quality of the pipe workpiece (2) is provided on the sealing mechanism (3); The sealing mechanism (3) comprises two fixing plates (31), the two fixing plates (31) are symmetrically fixedly connected to the upper surface of the base plate (1), a screw rod (32) is rotatably connected between the opposite sides of the two fixing plates (31) through a bearing, a motor (33) is installed on the right side of the upper surface of the base plate (1), one end of the output shaft of the motor (33) passes through the fixing plate (31) and is fixedly connected to the right end of the screw rod (32), the outer wall of the screw rod (32) is symmetrically threaded with two nut seats (34), the upper surface of the nut seat (34) is fixedly connected to a connecting plate (35), the upper surface of the connecting plate (35) is fixedly connected to a clamping seat (36), and the opposite sides of the two clamping seats (36) are each provided with a V-shaped ring groove (37), and the inner side wall of the V-shaped ring groove (37) is bonded with a V-shaped sealing sleeve (38); The detection mechanism (4) includes a fixed tube (41), an inner side wall of the clamping seat (36) is fixedly connected to the fixed tube (41), the upper surface of the fixed tube (41) is connected to an air inlet pipe (42), the right end of the fixed tube (41) is connected to an air bag (43), the right side wall of the air bag (43) is connected to a connecting tube (44), and the right end of the connecting tube (44) is installed with a pressure gauge (45).

2. The special equipment pressure pipeline quality inspection device according to claim 1, characterized in that: Two positioning rods (39) are symmetrically fixedly connected between opposite sides of the two fixing plates (31), and the positioning rods (39) are slidably connected to the nut seats (34).

3. The special equipment pressure pipeline quality inspection device according to claim 2, characterized in that: Two brackets (310) are symmetrically fixedly connected to the left side of the upper surface of the base plate (1), and the pipeline workpiece (2) is placed on the upper surface of the brackets (310).

4. The special equipment pressure pipeline quality inspection device according to claim 3 is characterized in that: A valve (46) is installed on the outer side wall of the air inlet pipe (42).

5. The special equipment pressure pipeline quality inspection device according to claim 4, characterized in that: A pressure relief valve (47) is installed on the right side of the outer side wall of the fixed pipe (41).

6. The special equipment pressure pipeline quality inspection device according to claim 5, characterized in that: A vertical plate (5) is fixedly connected to the rear side of the upper surface of the bottom plate (1), a control panel (6) is installed on the upper portion of the front surface of the vertical plate (5), and an electrical output end of the control panel (6) is electrically connected to an electrical input end of the motor (33) via a wire.

7. The special equipment pressure pipeline quality inspection device according to claim 6, characterized in that: A display panel (7) is installed on the top of the front surface of the vertical plate (5), and the electrical output end of the pressure gauge (45) is electrically connected to the electrical input end of the display panel (7) through a wire.

Images