Crimping type pipe fitting air tightness experiment device

Abstract

The utility model discloses a crimping type pipe fitting air tightness experiment device, which relates to the technical field of sealing detection, and comprises a water tank, a support rod is arranged on the water tank, a lifting cylinder and a guide rod hole are arranged on the support rod, and the lifting cylinder is connected with a bottom plate and is used for water soaking and water discharging processes of a pipe fitting. A guide rod, a jacking air cylinder, a jacking screw rod, a pipe fitting mold and a plurality of water permeable holes are arranged on the bottom plate, the guide rod penetrates through a guide rod hole and is used for guiding, the jacking air cylinder is fixed on the bottom plate through a fixing seat, the jacking screw rod is fixed on the bottom plate through a jacking adjusting seat, and the pipe fitting mold is in threaded connection with the bottom plate. The compression joint type pipe fitting air tightness experiment device adopting the structure solves the problems that the manual air tightness detection of the pipe fitting in the prior art is poor in effect and low in efficiency, and the detection device is not universal, and the device is simple and reliable in structure, good in continuity of actions of workpiece clamping, water soaking, automatic inflation, pressure maintaining and water discharging, and high in reliability. The airtightness test can be carried out on a plurality of pipe fittings simultaneously, and the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing detection, in particular to a gas tightness test device for crimped pipe fittings. Background Art

[0002] In the existing production process of pipe fittings, various pipe fittings need to be subjected to air tightness detection before leaving the factory to ensure the production quality of the pipe fittings. The existing air tightness tests are mostly manual tests, that is, after blocking the two ends of the pipe fitting and immersing it in water to observe whether there are bubbles generated. However, this kind of test is not accurate. One is that the blockage is not tight, and the other is that the internal pressure of the pipe fitting does not reach a certain level, and the detection efficiency is also very low. In addition, for pipe fittings with complex structures, due to their shapes and multi-passage characteristics, it is not easy to test their air tightness after mass production. Manual testing is time-consuming and laborious. Therefore, there is an urgent need for an air tightness test device with better test effects. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a gas tightness test device for crimped pipe fittings, which solves the problems of poor air tightness detection effect, low efficiency and non-universal detection device for pipe fittings in the prior art.

[0004] To achieve the above purpose, the utility model provides a gas tightness test device for crimped pipe fittings, including a water tank. A support rod is arranged on the water tank. An elevating cylinder and a guide rod hole are arranged on the support rod. The elevating cylinder is connected to a bottom plate. A guide rod, a tightening cylinder, a tightening screw rod, a pipe fitting mold and a plurality of water permeable holes are arranged on the bottom plate. The tightening cylinder is fixed on the bottom plate through a fixed seat. The tightening screw rod is fixed on the bottom plate through a tightening adjustment seat. The pipe fitting mold is screwed to the bottom plate.

[0005] Preferably, there are two support rods which are symmetrically fixed on the left and right of the water tank respectively. Two guide rod holes are symmetrically distributed front and back on the support rod, and the guide rod holes are used to fix the guide rod.

[0006] Preferably, there are two elevating cylinders which are respectively fixed at the centers of the two support rods.

[0007] Preferably, at least two tightening cylinders are provided, and the two tightening cylinders are symmetrically distributed on the upper part of the bottom plate from left to right;

[0008] At least two tightening screw rods are provided, and the two tightening screw rods are symmetrically distributed on the lower part of the bottom plate from left to right;

[0009] An air vent plug is arranged at the end of the tightening cylinder, and a sealing plug is arranged at the end of the tightening screw rod.

[0010] Preferably, one end of the guide rod passes through the guide rod hole for guiding, and the other end is fixedly connected to the bottom plate.

[0011] Preferably, polyurethane sealing rings are provided at the ends of the air vent plug and the sealing plug.

[0012] Therefore, the crimping type pipe fitting airtightness test device of the present utility model with the above structure solves the problems of poor airtightness detection effect, low efficiency and non-universal detection device for pipe fittings in the prior art when manually detecting the airtightness of pipe fittings.

[0013] The technical solution of the present utility model will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a crimping type pipe fitting airtightness test device of the present utility model;

[0015] Figure 2 It is a schematic structural diagram of a pipe fitting mold;

[0016] Figure 3 It is a cross-sectional view of the sealing plug;

[0017] Figure 4 It is a cross-sectional view of the air vent plug.

[0018] Among them, 1, water tank; 2, air vent plug; 3, tightening cylinder; 4, support rod; 5, guide rod; 6, lifting cylinder; 7, guide rod hole; 8, sealing plug; 9, bottom plate; 10, tightening screw rod; 11, polyurethane sealing ring; 12, water permeable hole; 13, tightening adjustment seat; 14, test pipe fitting; 15, fixed seat; 16, pipe fitting mold. Detailed Embodiments

[0019] The technical solution of the present utility model will be further described below with reference to the drawings and embodiments.

[0020] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar terms used in this utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent the relative positional relationship in the figure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] Embodiment

[0022] As shown in the figure, the present utility model provides a crimping type pipe fitting airtightness test device, which includes a water tank 1. A support rod 4 is arranged on the water tank 1. An elevating cylinder 6 and a guide rod hole 7 are arranged on the support rod 4. The elevating cylinder 6 is connected to a bottom plate 9. A guide rod 5, a tightening cylinder 3, a tightening screw rod 10, a pipe fitting mold 16 and a plurality of water permeable holes 12 are arranged on the bottom plate 9. The tightening cylinder 3 is fixed on the bottom plate 9 through a fixing seat 15. The tightening screw rod 10 is fixed on the bottom plate 9 through a tightening adjustment seat 13. The pipe fitting mold 16 is screwed to the bottom plate 9; There are two support rods 4, which are symmetrically fixed on the left and right of the water tank 1 respectively. Two guide rod holes 7 are symmetrically distributed front and back on the support rod 4, and the guide rod holes 7 are used to fix the guide rod 5; There are two elevating cylinders 6, which are respectively fixed at the centers of the two support rods 4; At least two tightening cylinders 3 are provided, and the two tightening cylinders 3 are symmetrically distributed on the upper part of the bottom plate 9 from left to right; At least two tightening screw rods 10 are provided, and the two tightening screw rods 10 are symmetrically distributed on the lower part of the bottom plate 9 from left to right; An air vent plug 2 is arranged at the end of the tightening cylinder 3, and a sealing plug 8 is arranged at the end of the tightening screw rod 10; One end of the guide rod 5 passes through the guide rod hole 7 for guiding, and the other end is fixedly connected to the bottom plate 9; Polyurethane sealing rings 11 are arranged at the ends of the air vent plug 2 and the sealing plug 8.

[0023] In this embodiment, the pipe fitting mold 16 is fixed on the bottom plate 9 by bolts. The test pipe fitting 14 is placed in the corresponding pipe fitting mold 16. The tightening cylinder 3 and the tightening screw rod 10 start to work to press the test pipe fitting 14. The polyurethane sealing rings 11 at the ends of the air vent plug 2 and the sealing plug 8 start to play a sealing role. Subsequently, the tightening cylinder 3 starts to introduce compressed air into the test pipe fitting 14 for pressurization. At the same time, the lifting cylinder 6 starts to work, driving the test pipe fitting 14 to immerse in the water tank 1. After reaching the pressure, it is qualified if no bubbles emerge from the test pipe fitting 14 in the water tank 1. The lifting cylinder 6 acts to drive the test pipe fitting 14 to float out of the water tank 1, completing the airtightness test. In this device, the tightening cylinder 3 and the tightening screw rod 10 are distributed in an X shape, with good versatility, which can meet various-shaped and various-passage test pipe fittings and there are multiple workstations to simultaneously conduct airtightness tests on multiple pipe fittings, with high efficiency.

[0024] Therefore, the crimping type pipe fitting airtightness test device of the present utility model adopts the above structure, solving the problems in the prior art that the manual airtightness detection of pipe fittings has poor effect, low efficiency, and the detection device cannot be universal.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A compression fitting air tightness test device, characterized in that: It includes a water tank, on which a support rod is provided, on which a lifting cylinder and a guide rod hole are provided, the lifting cylinder is connected to a base plate, on which a guide rod, a tightening cylinder, a tightening screw rod, a pipe fitting mold and a plurality of water-permeable holes are provided, the tightening cylinder is fixed to the base plate through a fixing seat, the tightening screw rod is fixed to the base plate through a tightening adjustment seat, and the pipe fitting mold and the base plate are screwed.

2. The air tightness test device for crimped pipe fittings according to claim 1, characterized in that: The support rods are provided with two and are fixed on the water tank symmetrically left and right respectively. The support rods are provided with two guide rod holes symmetrically distributed front and back, and the guide rod holes are used to fix the guide rods.

3. The air tightness test device for crimped pipe fittings according to claim 1, characterized in that: The lifting cylinders are provided with two and are respectively fixed on the exact centers of the two support rods.

4. The air tightness test device for crimped pipe fittings according to claim 1, characterized in that: At least two of the tightening cylinders are provided, and the two tightening cylinders are symmetrically distributed on the upper part of the bottom plate; At least two tightening screw rods are provided, and the two tightening screw rods are symmetrically distributed at the lower part of the bottom plate; A vent plug is arranged at the end of the tightening cylinder, and a sealing plug is arranged at the end of the tightening screw rod.

5. The air tightness test device for crimped pipe fittings according to claim 2, characterized in that: One end of the guide rod passes through the guide rod hole for guiding, and the other end is fixedly connected to the base plate.

6. The air tightness test device for crimped pipe fittings according to claim 4, characterized in that: The ends of the vent plug and the sealing plug are both provided with polyurethane sealing rings.

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