Bent pipe airtightness detection tool

Abstract

The utility model provides an air tightness detection tool for a bent pipe. The air tightness detection tool comprises a tool box, the frame is arranged at the top of the tool box, a supporting block used for supporting the first driving cylinder is arranged in the middle of the frame, and a movable rod of the first driving cylinder penetrates through the supporting block and is connected with the connecting block; the driving cylinder II is arranged on the bottom surface of the connecting block; the bearing frame is used for supporting a second driving cylinder, and a movable rod of the second driving cylinder penetrates through the bearing frame and is connected with the pressing disc; the supporting plate is detachably arranged on the bottom surface of the bearing frame; the two groups of inclined plates are arranged at two ends of the supporting plate; the sealing rubber layers are arranged on the corresponding inclined plates; the inflation nozzles are arranged on the corresponding inclined plates and communicated with the air pump, the bent pipe is installed between the two sets of inclined plates, the second driving cylinder drives the pressing disc to press downwards, the sealing rubber layers seal and press the two ends of the bent pipe, the air pump inflates the interior of the bent pipe, the first driving cylinder drives the bent pipe to move downwards to be covered by water, and the air tightness is detected. The operation is convenient.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of pipelines, and in particular to an air tightness detection tool for bent pipes. Background Art

[0002] The pipe bends are made with a complete set of bending equipment, which is divided into two processes: cold bending and hot pushing. Regardless of the type of machinery, equipment, or pipeline, most of them use pipe bends, which are mainly used for oil, gas, and liquid transportation, engineering bridge construction, etc. After the production of the pipe bends is completed, they need to be tested for air tightness before they can be used. The most common way to test the air tightness of metal pipe bends is through metal flaw detection. For example, the utility model patent application No. CN201920225823.2 discloses a pipe bend workpiece air tightness detection tool, which includes a base plate, a vertical frame, a top-tightening and blocking mechanism, a positioning mechanism, a clamping mechanism, and a trachea seat; the vertical frame is vertically connected to the upper end face of the base plate, The tightening and blocking mechanism, the positioning mechanism and the trachea seat are all located on the upper end surface of the bottom plate, the clamping mechanism is located on the side of the vertical frame, and the upper and lower positions of the clamping mechanism and the positioning mechanism correspond to each other: the tightening and blocking mechanism includes a horizontal pressing clamp and a plug: the positioning mechanism includes a first positioning seat, a second positioning seat and a third positioning seat: the clamping mechanism includes a vertical pressing clamp and a pressing block: the trachea seat includes a base and a ventilation block; the overall structure of the tooling is complex, and on this basis, and in order to meet the diversified development of the market, a bent pipe airtightness detection tooling is proposed. Utility Model Content

[0003] 1. Technical problems to be solved by the utility model:

[0004] The utility model provides a bent pipe air tightness detection tool to solve the technical problems existing in the above-mentioned background technology.

[0005] 2. Technical solution:

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] The air tightness detection tool for bent pipes is characterized in that the detection tool comprises

[0008] A work box, inside of which is provided water for testing airtightness;

[0009] A frame is arranged on the top of the tooling box, and a support block for supporting the driving cylinder 1 is arranged in the middle of the frame, and a movable rod of the driving cylinder 1 passes through the support block and is connected to the connecting block;

[0010] A second driving cylinder is arranged on the bottom surface of the connecting block;

[0011] A support frame, used to support the second driving cylinder, and the movable rod of the second driving cylinder passes through the support frame and is connected to the pressure plate;

[0012] A support plate is detachably arranged on the bottom surface of the rack;

[0013] Two sets of inclined plates are arranged at both ends of the supporting plate;

[0014] A sealing rubber layer is arranged on the corresponding inclined plate;

[0015] The inflation nozzle is arranged on the corresponding inclined plate, and the inflation nozzle is connected with the air pump, and the sealing rubber layer is wrapped around the outside of the inflation nozzle with the inflation nozzle as the center.

[0016] Furthermore, the second driving cylinder is connected to the connecting block bearing.

[0017] Furthermore, H-shaped brackets are provided at both ends of the tooling box, and the tops of the two groups of H-shaped brackets jointly support a frame.

[0018] Furthermore, the object rack includes a top plate connected to the second driving cylinder and a bottom plate for placing the support plate, and a plurality of groups of guide columns are provided between the top plate and the bottom plate.

[0019] Furthermore, the two groups of inclined plates and the supporting plates form a trapezoidal structure.

[0020] 3. Beneficial effects:

[0021] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0022] The utility model has a simple structure and is easy to operate. The bent pipe is installed between the corresponding two groups of inclined plates, and the pressure plate is pressed down by the second driving cylinder. At this time, the sealing rubber layer adaptively seals and presses the two openings of the bent pipe. After the bending pipe is pressed, the air pump inflates the inside of the bent pipe through the inflation nozzle. At this time, the first driving cylinder drives the compressed bent pipe in the supporting frame to move down to be covered by water. The air tightness of the bent pipe can be judged by detecting whether bubbles are generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 For this utility model Figure 1 Schematic diagram of the split state structure;

[0025] Figure 3 It is a schematic diagram of the structural relationship of the object-carrying rack of the utility model.

[0026] Reference numerals:

[0027] 1- tooling box; 2- frame; 3- driving cylinder 1; 4- supporting block; 5- connecting block; 6- driving cylinder 2; 7- supporting rack; 701- top plate; 702- bottom plate; 703- guide column; 8- pressure plate; 9- supporting plate; 10- inclined plate; 11- sealing rubber layer; 12- inflation nozzle; 13- H-type bracket. DETAILED DESCRIPTION

[0028] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "set at" and "set at" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference Figure 1-3 , This embodiment provides a bend air tightness detection tool, the detection tool comprises a tool box 1, inside of which is provided water for detecting air tightness;

[0031] A frame 2 is arranged on the top of the tooling box 1, and a support block 4 for supporting a driving cylinder 3 is provided in the middle of the frame 2, and a movable rod of the driving cylinder 3 passes through the support block 4 and is connected to a connecting block 5;

[0032] A second driving cylinder 6 is arranged on the bottom surface of the connecting block 5;

[0033] The object support frame 7 is used to support the second driving cylinder 6, and the movable rod of the second driving cylinder 6 passes through the object support frame 7 and is connected to the pressure plate 8;

[0034] The support plate 9 is detachably arranged on the bottom surface of the support frame 7;

[0035] Two sets of inclined plates 10 are arranged at both ends of the support plate 9;

[0036] A sealing rubber layer 11 is disposed on the corresponding inclined plate 10;

[0037] The inflation nozzle 12 is disposed on the corresponding inclined plate 10 , and the inflation nozzle 12 is connected to the air pump. The sealing rubber layer 11 surrounds and wraps around the outside of the inflation nozzle 12 with the inflation nozzle 12 as the center.

[0038] The operator adjusts the position and installs the elbow between the corresponding two sets of inclined plates 10, and drives the pressure plate 8 to press down through the driving cylinder 2 6. At this time, the sealing rubber layer 11 adaptively seals and presses the two openings of the elbow. After the elbow is compressed, the air pump inflates the inside of the elbow through the inflation nozzle 12. At this time, the driving cylinder 1 3 drives the compressed elbow in the support frame 7 to move down to the water cover. The air tightness of the elbow can be judged by detecting whether bubbles are generated.

[0039] In this embodiment, a gas filling port connected to a gas filling nozzle 12 is provided on the side surface of each set of side panels 10 .

[0040] In a preferred embodiment, the drive cylinder 2 6 is connected to the connecting block 5 with a bearing. This arrangement allows the support frame to rotate freely, making it easy for the operator to adjust the bent pipe to a suitable position and install it between the two inclined plates 10.

[0041] In a preferred embodiment, H-shaped brackets 13 are provided at both ends of the tooling box 1, and the tops of two groups of H-shaped brackets 13 jointly support the frame 2. The above arrangement ensures the stability of the entire tooling while saving materials.

[0042] In a preferred embodiment, the object rack 7 includes a top plate 701 connected to the driving cylinder 2 6 and a bottom plate 702 for placing the support plate 9, and a plurality of groups of guide columns 703 are provided between the top plate 701 and the bottom plate 702.

[0043] In this embodiment, a disc is provided on the bottom plate 702, and a support block 9 is provided on the disc. The disc is provided on the bottom plate 702, and the edge of the disc is located beyond the bottom plate. Figure 3 As shown, the support block 9 has a larger operating space on the disc.

[0044] In a preferred embodiment, the two groups of inclined plates 10 and the support plate 9 form an obtuse-angled trapezoidal structure, which facilitates the installation of the elbow between the two inclined plates 10 .

[0045] This embodiment also includes a pressure gauge connected to the elbow, and the air tightness of the elbow can also be detected by the pressure gauge. If the elbow leaks after being inflated, the pressure will decrease.

[0046] The inclined position of the inclined plate 10 is adjustable to facilitate air tightness testing of elbows of different sizes. However, considering that the tooling is subjected to long-term underwater testing and has a limited service life, it is preferred to provide a detachable support plate 9 to facilitate replacement of the support plate 9 according to the type of elbow to be tested. There are multiple ways to detach the support plate 9, such as a traditional bolt and nut assembly or directly placing the support plate 9 on the bottom plate, so that the support plate 9 is easy to move during the installation process, and the air tightness of the elbow can also be tested after being clamped by the pressure plate 8.

[0047] It should be noted that a sealing rubber layer 11 is provided on the side of the inclined plate. Since the sealing rubber layer 11 will adaptively seal according to the shape of the bent pipe during the clamping process of the bent pipe through the pressure plate 8, it is ensured that the tooling can clamp and seal the bent pipes within a certain range, thereby improving its applicability.

[0048] It should be noted that the structures not introduced in the present invention do not involve the design points and improvement directions of the present invention, and all adopt the existing technology. At the same time, the content of the above background technology belongs to the technical cognition scope of the utility model inventor. Since the technical content in this field is vast and too complicated, the above content of this application does not necessarily constitute the prior art.

[0049] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. Bend pipe air tightness detection tooling, characterized in that: The testing tool includes A tool box (1) having water therein for testing air tightness; A frame (2) is arranged on the top of the tooling box (1), and a support block (4) for supporting a driving cylinder (3) is provided in the middle of the frame (2), and a movable rod of the driving cylinder (3) passes through the support block (4) and is connected to a connecting block (5); A second driving cylinder (6) is arranged on the bottom surface of the connecting block (5); A support frame (7) is used to support the second driving cylinder (6), and the movable rod of the second driving cylinder (6) passes through the support frame (7) and is connected to the pressure plate (8); A support plate (9) is detachably arranged on the bottom surface of the object support frame (7); Two sets of inclined plates (10) are arranged at both ends of the support plate (9); A sealing rubber layer (11) is disposed on the corresponding inclined plate (10); The inflation nozzle (12) is arranged on the corresponding inclined plate (10), and the inflation nozzle (12) is connected to the air pump, and the sealing rubber layer (11) surrounds and wraps around the outside of the inflation nozzle (12) with the inflation nozzle (12) as the center.

2. The air tightness detection tool for bent pipes according to claim 1 is characterized in that: The second driving cylinder (6) is connected to the bearing of the connecting block (5).

3. The air tightness detection tool for bent pipes according to claim 1 is characterized in that: H-shaped brackets (13) are provided at both ends of the tooling box (1), and the tops of two groups of H-shaped brackets (13) jointly support a frame (2).

4. The air tightness detection tool for bent pipes according to claim 1, characterized in that: The object support frame (7) comprises a top plate (701) connected to the second driving cylinder (6) and a bottom plate (702) for placing a support plate (9), and a plurality of groups of guide columns (703) are provided between the top plate (701) and the bottom plate (702).

5. The bend pipe air tightness detection tool according to claim 1, characterized in that: The two groups of inclined plates (10) and the support plate (9) form a trapezoidal structure.

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