Auxiliary pressurizing device for airtightness detection of stainless steel pipe fitting

Abstract

The utility model discloses an auxiliary pressurizing device for airtightness detection of stainless steel pipe fittings, which comprises a base, the top of the base is fixedly provided with a frame, two sides of the frame are rotatably connected with circular shafts, the circular shafts are fixedly connected with a disc located in the frame, the disc is fixedly provided with a sealing cover body, and the sealing cover body is fixedly provided with a sealing cover. And the circular shaft is connected with the frame through a driving mechanism. By arranging the circular shaft, the disc, the sealing cover body and the driving mechanism, in the using process, when a worker needs to seal pipe fittings with different diameter sizes, the circular shaft can drive the disc to rotate through the driving mechanism, and therefore the sealing cover body can rotate; the pipe fitting sealing cover has the advantages that auxiliary pressurization can be carried out on pipe fittings with different diameter sizes so as to facilitate follow-up inflation detection, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe fitting detection, in particular to an auxiliary pressurizing device for air tightness detection of stainless steel pipe fittings. Background Art

[0002] Compared with plastic pipe fittings, stainless steel pipe fittings have superior performance in all aspects. However, during the production process, the pipe wall may be too thin or cracked. When the pipe wall of a stainless steel pipe fitting is too thin or cracked, it will cause water leakage during use. Therefore, it is necessary to perform air tightness testing on the stainless steel pipe fittings. For example, Publication No.: CN220568361U discloses an air tightness testing device, including a testing mechanism. In this utility model, during use, under the action of the testing mechanism, one end of the stainless steel pipe fitting to be tested is sleeved on the outer wall of a first sealing cover, and then fixed. Subsequently, under the action of a motor, the slider slides inside the slide groove, driving the second sealing cover to be inserted into the other end of the stainless steel pipe fitting. Under the action of the two sealing covers, the pipe fitting can be sealed to prevent air leakage. Then, under the action of an air pump, air is input into the pipe fitting. By observing the changes in the pressure gauge, it is easy to judge whether the pipe fitting has good air tightness. Through the above structure and method, it is possible to quickly and accurately judge whether the pipe fitting has good air tightness, thereby improving work efficiency and the quality of detection.

[0003] However, there are some problems with this existing technology: when the detection device is in use, the two ends of the stainless steel pipe need to be respectively placed on the outer walls of the two sealing covers to seal the pipe to prevent air leakage, thereby achieving the effect of auxiliary pressurization, and air can be input into the pipe through an air pump for detection. However, the two sealing covers on the device are fixed in size, so that only pipes of a single diameter can be assisted in sealing, thereby reducing the applicability of the detection device and making it inconvenient for staff to detect pipes of different diameters. Therefore, we propose an auxiliary pressurization device for air tightness detection of stainless steel pipes. Utility Model Content

[0004] In response to the problems existing in the prior art, the purpose of this utility model is to provide an auxiliary pressurizing device for air tightness detection of stainless steel pipe fittings. By setting up multiple groups of sealing covers of different sizes, it is convenient for workers to perform auxiliary sealing and pressurization on pipe fittings of different diameters.

[0005] The utility model is implemented as follows: an auxiliary pressurizing device for air tightness detection of stainless steel pipe fittings comprises a base, a frame is fixedly installed on the top of the base, circular shafts are rotatably connected on both sides of the frame, a disc located inside the frame is fixedly connected to the circular shaft, a sealing cover body is fixedly installed on the disc, the circular shaft and the frame are connected by a driving mechanism, a through hole is opened between the sealing cover body and the disc on the left side, a cannula is movably inserted on the left side of the frame, the right end of the cannula extends to the inside of the through hole, and a push-pull assembly is provided on the right side of the frame.

[0006] Optionally, the driving mechanism includes a driving motor, which is fixedly mounted on the top of the frame. The output shaft of the driving motor is fixedly sleeved with a screw rod, the outer surface of the screw rod is threadedly connected to a movable rod, both sides of the movable rod are fixedly connected with a tooth plate, the outer surface of the circular shaft is fixedly sleeved with a gear, and the gear is meshingly connected to the tooth plate.

[0007] Optionally, the push-pull assembly includes a cylinder, which is fixedly installed on the right side of the frame. The telescopic end of the cylinder is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the circular shaft on the right side.

[0008] Optionally, a first oblique block is fixedly sleeved on the outer surface of the cannula, a spring located between the first oblique block and the frame is movably sleeved on the outer surface of the cannula, and both ends of the spring are fixedly connected to the frame and the first oblique block respectively.

[0009] Optionally, an electric push rod located below the first oblique block is fixedly installed on the left side of the frame, and the telescopic end of the electric push rod is fixedly connected to the second oblique block, and the second oblique block is slidably connected to the first oblique block.

[0010] Optionally, a slot is provided in the middle of the top of the base, a square plate is slidably connected between the inner walls on both sides of the slot, a splint is fixedly connected to the top of the square plate, a bottom groove is provided at the bottom end of the square plate, and the square plate and the base are connected via a power assembly.

[0011] Optionally, the power assembly includes a brake motor, which is fixedly mounted on the bottom of the inner wall of the slot, the output shaft of the brake motor is fixedly sleeved with a rotating shaft, the top of the rotating shaft is fixedly connected with a rotating rod, and the top of the rotating rod is fixedly mounted with a round block located inside the bottom slot.

[0012] Optionally, the appearance of the splint is arc-shaped, and the inner surface of the splint is provided with anti-slip grooves.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a circular shaft, a circular disc, a sealing cover body and a driving mechanism. During use, when the staff needs to seal pipes of different diameters, the driving mechanism can be used to drive the circular shaft to rotate the circular disc, thereby rotating the sealing cover body, and then rotating the sealing cover body of the corresponding size to a position connected to the cannula, thereby auxiliary pressurization of pipes of different diameters for subsequent inflation detection, thereby improving the applicability of the device.

[0015] 2. The utility model is provided with a first inclined block, a spring, an electric push rod and a second inclined block. By starting the electric push rod, the second inclined block can be moved upward to squeeze the first inclined block, so that the cannula can be moved into the inside of the through hole and the spring can be compressed, which is convenient for inflation. When it is necessary to rotate the disc to adjust the position of the sealing cover body, the electric push rod can be started to move the second inclined block downward. At this time, due to the elastic force of the spring, the first inclined block will drive the cannula to move away from the disc and move the cannula out of the through hole, thereby ensuring the normal rotation of the disc.

[0016] 3. The utility model is provided with a clamping plate, a brake motor, a square plate, a rotating rod and a round block. By starting the brake motor, the rotating shaft can drive the rotating rod and the round block to rotate. Due to the rotation of the round block, the inner wall of the bottom groove will be squeezed, so that the two square plates can drive the two clamping plates to move toward each other, and then the pipe fittings can be further clamped and fixed, thereby ensuring the stability of the pipe fittings during inspection.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram provided by the utility model;

[0019] Figure 2 This is a front cross-sectional structural diagram provided by the utility model;

[0020] Figure 3 This is a schematic diagram of the top cross-sectional structure provided by the utility model;

[0021] Figure 4 This is a schematic diagram of the split structure of the bottom of the splint provided by the utility model;

[0022] Figure 5 yes Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0023] In the figure: 1. base; 2. frame; 3. round shaft; 4. round disc; 5. sealing cover body; 6. through hole; 7. cannula; 8. driving motor; 9. screw rod; 10. movable rod; 11. tooth plate; 12. gear; 13. cylinder; 14. connecting rod; 15. first oblique block; 16. spring; 17. electric push rod; 18. second oblique block; 19. notch; 20. square plate; 21. splint; 22. bottom groove; 23. brake motor; 24. rotating shaft; 25. rotating rod; 26. round block. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 5 As shown, an auxiliary pressurizing device for air tightness detection of stainless steel pipe fittings provided by an embodiment of the utility model includes a base 1, a frame 2 is fixedly installed on the top of the base 1, and circular shafts 3 are rotatably connected on both sides of the frame 2. A circular disc 4 located inside the frame 2 is fixedly connected to the circular shaft 3, and a sealing cover body 5 is fixedly installed on the circular disc 4. The circular shaft 3 and the frame 2 are connected by a driving mechanism, and a through hole 6 is provided between the sealing cover body 5 and the circular disc 4 on the left side. A cannula 7 is movably inserted on the left side of the frame 2, and the right end of the cannula 7 extends to the inside of the through hole 6. A push-pull assembly is provided on the right side of the frame 2.

[0026] Furthermore, the driving mechanism includes a driving motor 8, which is fixedly mounted on the top of the frame 2. The output shaft of the driving motor 8 is fixedly sleeved with a screw rod 9, the outer surface of the screw rod 9 is threadedly connected to a movable rod 10, and both sides of the movable rod 10 are fixedly connected to a tooth plate 11. The outer surface of the circular shaft 3 is fixedly sleeved with a gear 12, and the gear 12 is meshed with the tooth plate 11.

[0027] By starting the drive motor 8 to rotate the screw rod 9, the movable rod 10 can drive the tooth plate 11 to move forward or backward, and then the gear 12 can drive the circular shaft 3 to rotate, so that the disc 4 can drive the sealing cover body 5 to rotate, and then the sealing cover body 5 of the corresponding size can be rotated to a position connected with the cannula 7.

[0028] Furthermore, the push-pull assembly includes a cylinder 13, which is fixedly mounted on the right side of the frame 2. The telescopic end of the cylinder 13 is fixedly connected to a connecting rod 14, and the other end of the connecting rod 14 is fixedly connected to the circular shaft 3 on the right side.

[0029] By starting the cylinder 13, the connecting rod 14 can drive the circular shaft 3 connected thereto to move closer to the frame 2, so that the right disc 4 can move closer to the left disc 4, and then the two ends of the pipe can be sealed by the sealing cover bodies 5 on both sides.

[0030] Furthermore, a first inclined block 15 is fixedly sleeved on the outer surface of the cannula 7 , and a spring 16 located between the first inclined block 15 and the frame 2 is movably sleeved on the outer surface of the cannula 7 , with both ends of the spring 16 fixedly connected to the frame 2 and the first inclined block 15 respectively.

[0031] By setting the spring 16 to a compressed state, the first inclined block 15 and the insertion tube 7 tend to move away from the frame 2 due to the elastic force of the spring 16 .

[0032] Furthermore, an electric push rod 17 located below the first inclined block 15 is fixedly installed on the left side of the frame 2. The telescopic end of the electric push rod 17 is fixedly connected to the second inclined block 18. The second inclined block 18 is slidably connected to the first inclined block 15.

[0033] Furthermore, a slot 19 is provided in the middle of the top of the base 1, a square plate 20 is slidably connected between the inner walls on both sides of the slot 19, a splint 21 is fixedly connected to the top of the square plate 20, a bottom groove 22 is provided at the bottom end of the square plate 20, and the square plate 20 and the base 1 are connected through a power component.

[0034] Furthermore, the power assembly includes a brake motor 23, which is fixedly mounted at the bottom of the inner wall of the slot 19. The output shaft of the brake motor 23 is fixedly sleeved with a rotating shaft 24, the top of the rotating shaft 24 is fixedly connected with a rotating rod 25, and the top of the rotating rod 25 is fixedly mounted with a round block 26 located inside the bottom slot 22.

[0035] By starting the brake motor 23, the rotating shaft 24 can drive the rotating rod 25 and the round block 26 to rotate. Due to the rotation of the round block 26, the inner wall of the bottom groove 22 will be squeezed, so that the two square plates 20 can drive the two clamping plates 21 to move toward each other, and then the pipe fittings can be further clamped and fixed, thereby ensuring the stability of the pipe fittings during inspection.

[0036] Furthermore, the appearance of the splint 21 is arc-shaped, and the inner surface of the splint 21 is provided with anti-slip grooves.

[0037] The working principle and use process of this utility model:

[0038] First, the staff needs to select the sealing cover body 5 of the corresponding size according to the diameter size of the stainless steel pipe fitting. First, the electric push rod 17 can be started to make the second inclined block 18 move downward, so that the cannula 7 is pulled out of the disc 4 under the elastic force of the spring 16, and then the driving motor 8 is started to make the screw rod 9 rotate, so that the movable rod 10 can drive the tooth plate 11 to move forward or backward, and then the gear 12 can drive the circular shaft 3 and the disc 4 to rotate, so that the sealing cover body 5 of the corresponding size can be rotated to a position connected with the cannula 7, and then the electric push rod 17 is started again to make the second inclined block 18 move upward to insert the cannula 7 into the through hole 6, and then the staff can sleeve the left end of the pipe fitting on the sealing cover body 5 on the left, and then start the brake motor 23 to make the two clamps 21 clamp the pipe fitting, and then start the cylinder 13 to make the connecting rod 14 drive the circular shaft 3 and the disc 4 on the right to move to the left, so that the right end of the pipe fitting is also sealed by the sealing cover body 5, and finally gas can be introduced into the pipe fitting through the cannula 7 for detection.

[0039] 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. An auxiliary pressurizing device for detecting the air tightness of stainless steel pipes, comprising a base (1), characterized in that: A frame (2) is fixedly mounted on the top of the base (1), and circular shafts (3) are rotatably connected to both sides of the frame (2), and a circular disc (4) located inside the frame (2) is fixedly connected to the circular shaft (3), and a sealing cover body (5) is fixedly mounted on the circular disc (4). The circular shaft (3) and the frame (2) are connected via a driving mechanism, and a through hole (6) is provided between the sealing cover body (5) and the circular disc (4) on the left side. A plug (7) is movably inserted on the left side of the frame (2), and the right end of the plug (7) extends to the inside of the through hole (6). A push-pull assembly is provided on the right side of the frame (2).

2. The auxiliary pressurizing device for air tightness detection of stainless steel pipes according to claim 1, characterized in that: The driving mechanism comprises a driving motor (8), the driving motor (8) being fixedly mounted on the top of the frame (2), the output shaft of the driving motor (8) being fixedly sleeved with a screw rod (9), the outer surface of the screw rod (9) being threadedly connected with a movable rod (10), both sides of the movable rod (10) being fixedly connected with a toothed plate (11), the outer surface of the circular shaft (3) being fixedly sleeved with a gear (12), and the gear (12) being meshedly connected with the toothed plate (11).

3. The auxiliary pressurizing device for air tightness detection of stainless steel pipes according to claim 1, characterized in that: The push-pull assembly comprises a cylinder (13), which is fixedly mounted on the right side of the frame (2); the telescopic end of the cylinder (13) is fixedly connected to a connecting rod (14), and the other end of the connecting rod (14) is fixedly connected to the circular shaft (3) on the right side.

4. The auxiliary pressurizing device for air tightness detection of stainless steel pipes according to claim 1, characterized in that: The outer surface of the insert tube (7) is fixedly sleeved with a first inclined block (15), and the outer surface of the insert tube (7) is movably sleeved with a spring (16) located between the first inclined block (15) and the frame (2), and the two ends of the spring (16) are respectively fixedly connected to the frame (2) and the first inclined block (15).

5. The auxiliary pressurizing device for air tightness detection of stainless steel pipes according to claim 1, characterized in that: An electric push rod (17) located below the first inclined block (15) is fixedly installed on the left side of the frame (2); the telescopic end of the electric push rod (17) is fixedly connected to the second inclined block (18); and the second inclined block (18) is slidably connected to the first inclined block (15).

6. The auxiliary pressurizing device for air tightness detection of stainless steel pipes according to claim 1, characterized in that: A notch (19) is provided in the middle of the top of the base (1), a square plate (20) is slidably connected between the inner walls on both sides of the notch (19), a clamping plate (21) is fixedly connected to the top of the square plate (20), a bottom groove (22) is provided at the bottom end of the square plate (20), and the square plate (20) and the base (1) are connected via a power assembly.

7. The auxiliary pressurizing device for air tightness detection of stainless steel pipes according to claim 6, characterized in that: The power assembly includes a brake motor (23), which is fixedly mounted on the bottom of the inner wall of the slot (19), and the output shaft of the brake motor (23) is fixedly sleeved with a rotating shaft (24), the top of the rotating shaft (24) is fixedly connected with a rotating rod (25), and the top of the rotating rod (25) is fixedly mounted with a round block (26) located inside the bottom slot (22).

8. The auxiliary pressurizing device for air tightness detection of stainless steel pipes according to claim 6, characterized in that: The appearance of the clamping plate (21) is arc-shaped, and the inner surface of the clamping plate (21) is provided with anti-slip grooves.

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