Connector for testing compressed natural gas bottle

Abstract

The utility model discloses a connector for testing a compressed natural gas bottle, which comprises a compressed natural gas bottle body and a connector body which is in threaded connection with the interior of the upper end of the compressed natural gas bottle body and is used for detection, the left end of the connector body is in threaded connection with a first conversion connector, and the right end of the connector body is in threaded connection with a second conversion connector; a long pipe is integrally connected to the lower left end of the connector body, a notch is formed in the lower right end of the connector body, a lifting assembly capable of being limited is arranged on the upper side of the connector body, and the lifting assembly comprises a lifting ring, a threaded rod, a limiting plate, a limiting hole and a lifting hook. Connecting plates are fixedly connected to the upper end of the connector body in a front-back symmetrical mode, mounting blocks are connected to the outer ends of the connecting plates in an embedded mode, and waterproof springs are fixedly connected into the mounting blocks. The connector for testing the compressed natural gas cylinder is convenient to install and prevents falling off during testing, the tested gas cylinder can be conveniently hoisted, falling off during hoisting is prevented, and meanwhile hidden dangers during water injection are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressed natural gas bottle test technical field, specifically is a compressed natural gas bottle test joint. BACKGROUND

[0002] The use range of compressed natural gas bottle is very extensive, in order to increase the security of compressed natural gas bottle use, need to carry out inspection to compressed natural gas bottle regularly, and water pressure test is an important item in the periodic inspection of gas cylinder, and the joint is an indispensable component in the detection during the test, the joint of compressed natural gas bottle test on the market at present has many styles, can satisfy certain demand.

[0003] Combining the use of actual production and processing, the current compressed natural gas bottle test joint still has some problems, such as: when testing, the joint is screwed on the upper end of the compressed natural gas bottle, but the joint is easy to fall off, and when hoisting through the lifting eye, the lifting hook is easy to move on the lifting eye, leading to the compressed natural gas bottle to be easy to produce skew, the gas cylinder can fall off when hoisting, and the water is not full, this condition causes the safety hidden danger in the subsequent water pressure test process, the test data is inaccurate, the water is full and overflows, it is inconvenient to screw the joint under this condition, and it is not conducive to the automatic operation of test equipment, therefore, we propose a compressed natural gas bottle test joint to solve the problems in the above. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a compressed natural gas bottle test joint to solve the problems that the existing compressed natural gas bottle test joint is inconvenient to install and prevent falling off during testing, and it is inconvenient to hoist the tested gas cylinder, and the water filling is prone to hidden troubles.

[0005] To achieve the above object, the utility model provides the following technical scheme: a compressed natural gas bottle test joint, including compressed natural gas bottle body and the joint body for detecting that is screwed on the upper end inside, and the left end of joint body is screwed with first conversion joint, and the right end of joint body is screwed with second conversion joint;

[0006] Further comprising:

[0007] The lower left end of the joint body is integrally connected with a long tube, the lower right end of the joint body is provided with an opening, and the upper side of the joint body is provided with a hoisting assembly that can be limited.

[0008] The upper end of the joint body is fixedly connected with a connecting plate symmetrically in front and back, the outer end of the connecting plate is embeddedly connected with a mounting block, and the inside of the mounting block is fixedly connected with a waterproof spring.

[0009] Preferably, the first conversion joint is in communication with the second conversion joint through a long pipe and a compressed natural gas bottle body.

[0010] Preferably, the lifting assembly comprises a lifting ring, a threaded rod, a limiting plate, a limiting hole and a lifting hook, the lifting ring is fixedly connected to the upper end of the joint body, a threaded rod is rotatably connected to the middle of the upper end of the lifting ring, the threaded rod is threadedly connected to the inside of the left end of the limiting plate, a limiting hole is formed in the middle of the right end of the limiting plate, and the right end of the lifting hook is nestedly connected to the inside of the limiting hole.

[0011] Preferably, the left end of the limiting plate is in contact with the inner wall of the left end of the lifting hook, and the limiting plate and the lifting hook form a lifting structure through the threaded rod on the upper side of the lifting ring.

[0012] Preferably, the lower end of the waterproof spring is fixedly connected to a limiting block, and the limiting block is slidingly connected to the inside of the mounting block.

[0013] Preferably, the lower end of the limiting block is clampingly connected to the hollow structure of the connecting lug, and the limiting block is fixedly connected to the upper end of the compressed natural gas bottle body in a front-rear symmetry manner.

[0014] Preferably, the positions of the limiting blocks correspond to the positions of the limiting plates in a one-to-one manner, and the limiting plates are fixedly connected to the front and rear ends of the compressed natural gas bottle body.

[0015] Preferably, the sum of the thickness of the limiting block and the minimum contraction state of the waterproof spring is equal to the internal depth of the mounting block.

[0016] Compared with the prior art, the compressed natural gas bottle testing joint has the advantages that it is convenient to install and prevent falling during testing, and it is convenient to lift the tested gas bottle and prevent falling during lifting, and hidden dangers during water injection are prevented.

[0017] 1. The connecting plate and the mounting block are provided, the lower end of the limiting block is clampingly connected to the hollow structure of the connecting lug, and after the joint body is threadedly connected to the inside of the upper end of the compressed natural gas bottle body;

[0018] The waterproof spring drives the limiting block to descend until the limiting block is clampingly connected to the hollow structure of the connecting lug, so that it is convenient to install and prevent falling during testing.

[0019] 2. The joint body and the lifting assembly are provided, and the structure design of the limiting plate and the threaded rod on the upper side of the lifting ring makes it convenient to hook the lifting hook on the lifting ring;

[0020] The limiting plate is lowered by rotating the threaded rod until the limiting hole is nestedly connected to the right end of the lifting hook, and the position of the lifting hook is limited by the threaded rod and the limiting plate, so that it is convenient to lift the tested gas bottle and prevent falling during lifting.

[0021] 3. The first conversion joint, the long pipe and the opening are arranged, and the structure design of the second conversion joint and the compressed natural gas bottle body through the long pipe makes water enter the inside of the compressed natural gas bottle body through the first conversion joint and the long pipe, and the gas in the inside of the compressed natural gas bottle body is discharged through the opening, so that hidden dangers during water injection are prevented. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view schematic diagram of the sectional structure of the utility model;

[0023] Figure 2 It is a left side view schematic diagram of the sectional structure of the connection between the joint body and the first conversion joint of the utility model;

[0024] Figure 3 It is a left side view schematic diagram of the sectional structure of the connection between the mounting block and the limiting block of the utility model;

[0025] Figure 4 It is a plan view schematic diagram of the sectional structure of the connection between the lifting hook and the limiting hole of the utility model;

[0026] Figure 5 It is a rear view schematic diagram of the structure of the connection between the joint body and the long pipe of the utility model;

[0027] Figure 6 It is a schematic diagram of the integral structure of the connection between the threaded rod and the limiting plate of the utility model.

[0028] In the figure: 1, compressed natural gas bottle body; 2, joint body; 3, first conversion joint; 4, second conversion joint; 5, long pipe; 6, opening; 7, lifting assembly; 701, lifting ring; 702, threaded rod; 703, limiting plate; 704, limiting hole; 705, lifting hook; 8, connecting plate; 9, mounting block; 10, waterproof spring; 11, limiting block; 12, connecting lug; 13, limiting plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Please refer to Figures 1-6The utility model provides a technical scheme: a kind of joint for compressed natural gas bottle test, including compressed natural gas bottle body 1, joint body 2, first conversion joint 3, second conversion joint 4, long tube 5, gap 6, hoisting assembly 7, connecting plate 8, mounting block 9, waterproof spring 10, limit block 11, connecting lug 12 and limiting plate 13, compressed natural gas bottle body 1 and threaded connection in its upper end inside for the joint body 2 of detection, and the left end of joint body 2 is threaded with first conversion joint 3, and the right end of joint body 2 is threaded with second conversion joint 4;

[0031] Also include:

[0032] The lower left end of joint body 2 is integrally connected with long tube 5, and the lower right end of joint body 2 is provided with gap 6, and the upper side of joint body 2 is provided with limitable hoisting assembly 7;

[0033] The upper end of joint body 2 is fixedly connected with connecting plate 8 in front and back symmetry, and the outer end of connecting plate 8 is embeddedly connected with mounting block 9, and the inside of mounting block 9 is fixedly connected with waterproof spring 10.

[0034] Embodiment: existing joint threaded connection in the upper end of compressed natural gas bottle when testing, but joint is easy to fall off, therefore the present embodiment is through following technical scheme, such as Figure 1 、 Figure 2 And Figure 3 Because the upper end of joint body 2 is fixedly connected with connecting plate 8 in front and back symmetry, the lower end of limit block 11 is engagedly connected in the hollow structure of connecting lug 12, the position of limit block 11 and the position of limiting plate 13 correspond one by one up and down, and the sum of the thickness of limit block 11 and the minimum contraction state of waterproof spring 10 is equal to the internal depth of mounting block 9;

[0035] Therefore, before detecting compressed natural gas bottle body 1, long tube 5 is nestedly connected in the inside of compressed natural gas bottle body 1, the lower end of joint body 2 enters the inside of the upper end of compressed natural gas bottle body 1, joint body 2 is rotated to be threaded in the inside of the upper end of compressed natural gas bottle body 1 with lower end;

[0036] Until the left and right two openings of joint body 2 are in the left and right ends of compressed natural gas bottle body 1, and the mounting block 9 of the outer end of connecting plate 8 and the hollow structure of connecting lug 12 are on the same vertical line, and limit block 11 is engagedly connected in the hollow structure of connecting lug 12 with waterproof spring 10 driving limit block 11 sliding downward in the inside of mounting block 9;

[0037] And the lower end of the limiting block 11 is in contact with the upper end of the limiting plate 13, and the mounting block 9 and the limiting plate 13 are symmetrically arranged to limit the position of the joint body 2 on the compressed natural gas bottle body 1, thereby facilitating the installation of the anti-falling device during testing;

[0038] When the existing lifting ring 701 is lifted, the lifting hook 705 is easy to move on the lifting ring 701, which causes the compressed natural gas bottle to be easy to be tilted, and the gas bottle may fall during lifting. Therefore, the embodiment adopts the following technical scheme, that is, Figure 1 、 Figure 2 、 Figure 4 and Figure 6 The lifting assembly 7 comprises the lifting ring 701, the threaded rod 702, the limiting plate 703, the limiting hole 704 and the lifting hook 705. The threaded rod 702 is rotatably connected to the middle position of the upper end of the lifting ring 701. The right end of the lifting hook 705 is nestedly connected to the inside of the limiting hole 704. The left end of the limiting plate 703 is in contact with the left end inner wall of the lifting hook 705. The limiting plate 703 forms a lifting structure on the upper side of the lifting ring 701 through the threaded rod 702.

[0039] Therefore, when lifting, the lifting hook 705 is hooked on the lifting ring 701, so that the right end of the lifting hook 705 corresponds to the position of the limiting hole 704, and the left end inner wall of the lifting hook 705 is in contact with the left end of the limiting plate 703. The threaded rod 702 is rotated at the middle position of the upper end of the lifting ring 701.

[0040] The threaded rod 702 drives the limiting plate 703 to descend until the limiting hole 704 is nestedly connected to the right end of the lifting hook 705. The position of the lifting hook 705 on the lifting ring 701 is limited by the threaded rod 702 and the limiting plate 703, thereby facilitating the lifting of the tested gas bottle and preventing it from falling during lifting.

[0041] The existing water is not filled, which causes safety hazards in the subsequent water pressure test process, inaccurate test data, water overflow, and inconvenient jointing under this condition, which is not conducive to the automatic operation of the test equipment. Therefore, the embodiment adopts the following technical scheme, that is, Figure 1 、 Figure 2 and Figure 5 The right lower end of the joint body 2 is provided with an opening 6. The first conversion joint 3, the long pipe 5 and the compressed natural gas bottle body 1 and the second conversion joint 4 form a communication structure.

[0042] Therefore, the first conversion joint 3 is threadedly connected to the left end of the joint body 2, and the second conversion joint 4 is threadedly connected to the right end of the joint body 2. The water inlet of the first conversion joint 3 is connected to the water injection pipeline, and the exhaust port of the second conversion joint 4 is connected to the exhaust pipeline. Water is injected into the compressed natural gas bottle body 1 through the water injection pipeline and the first conversion joint 3.

[0043] The water flows into the compressed natural gas bottle body 1 through the first conversion joint 3 and the long pipe 5 in turn, the air in the compressed natural gas bottle body 1 is discharged through the second conversion joint 4 and the air discharge pipe, the last air is discharged through the gap 6 when the water in the compressed natural gas bottle body 1 is about to be filled, the compressed natural gas bottle body 1 is completely filled with water, and the air in the compressed natural gas bottle body 1 is completely discharged, thereby preventing hidden dangers during water injection;

[0044] Working principle: the joint body 2 is placed on the upper side of the compressed natural gas bottle body 1, the long pipe 5 is nested and connected in the inside of the compressed natural gas bottle body 1, the joint body 2 is screwed and connected in the inside of the upper end of the compressed natural gas bottle body 1, the centers of the mounting blocks 9 symmetrically arranged in front and back are on the same vertical line with the hollow structure of the connecting ears 12, the waterproof spring 10 drives the limiting blocks 11 to slide downward in the inside of the mounting blocks 9, until the limiting blocks 11 symmetrically arranged in front and back are clamped and connected in the hollow structure of the connecting ears 12, and the lower end of the limiting blocks 11 abuts against the upper end of the limiting plate 13, and the position of the joint body 2 on the compressed natural gas bottle body 1 is further limited by the mounting blocks 9, the limiting blocks 11 and the connecting ears 12;

[0045] When hoisting, the hook 705 is hooked on the lifting ring 701, the right end of the hook 705 corresponds to the position of the limiting hole 704, and the left end of the limiting plate 703 abuts against the left end of the hook 705, the threaded rod 702 is rotated to lower the limiting plate 703, until the limiting hole 704 is nested and connected in the right end of the hook 705, the position of the hook 705 on the lifting ring 701 is limited, so that the position of the hook 705 on the lifting ring 701 cannot be deviated;

[0046] Water is injected into the compressed natural gas bottle body 1 through the first conversion joint 3, the water flows into the compressed natural gas bottle body 1 through the first conversion joint 3 and the long pipe 5 in turn, the air in the compressed natural gas bottle body 1 is discharged through the second conversion joint 4, and the last air is discharged through the gap 6 when the water in the compressed natural gas bottle body 1 is about to be filled, the compressed natural gas bottle body 1 is completely filled with water, and the air in the compressed natural gas bottle body 1 is completely discharged, the above-mentioned electrical elements are all prior art, and will not be described in detail here.

[0047] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0048] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A compressed natural gas bottle testing joint, comprising a compressed natural gas bottle body (1) and a threaded joint body (2) inside the upper end thereof for detection, and a first conversion joint (3) is threaded on the left end of the joint body (2), and a second conversion joint (4) is threaded on the right end of the joint body (2). characterized in that Further comprising: The lower left end of the joint body (2) is integrally connected with a long tube (5), and the lower right end of the joint body (2) is provided with an opening (6), and the upper side of the joint body (2) is provided with a hoisting assembly (7) which can be limited; The upper end of the joint body (2) is fixedly connected with a connecting plate (8) which is symmetrically arranged front and back, the outer end of the connecting plate (8) is inlaidly connected with a mounting block (9), and the inner portion of the mounting block (9) is fixedly connected with a waterproof spring (10).

2. A fitting for testing compressed natural gas cylinders as defined in claim 1, wherein: The first conversion joint (3) and the second conversion joint (4) constitute a communication structure through the long tube (5) and the compressed natural gas bottle body (1).

3. A fitting for testing compressed natural gas cylinders as defined in claim 1, wherein: The hoisting assembly (7) comprises a lifting ring (701), a threaded rod (702), a limiting plate (703), a limiting hole (704) and a lifting hook (705), the lifting ring (701) is fixedly connected to the upper end of the joint body (2), the threaded rod (702) is rotatably connected to the upper end of the lifting ring (701), the threaded rod (702) is threadedly connected to the inner portion of the left end of the limiting plate (703), the limiting hole (704) is formed in the right end of the limiting plate (703), and the lifting hook (705) is nestedly connected to the inner portion of the limiting hole (704).

4. A fitting for testing compressed natural gas cylinders as defined in claim 3, wherein: The left end of the limiting plate (703) is in contact with the inner wall of the left end of the lifting hook (705), wherein the limiting plate (703) and the lifting hook (705) constitute a lifting structure through the threaded rod (702) on the upper side of the lifting ring (701).

5. A fitting for testing compressed natural gas cylinders as defined in claim 1, wherein: The lower end of the waterproof spring (10) is fixedly connected with a limiting block (11), and the limiting block (11) is slidingly connected to the inner portion of the mounting block (9).

6. A coupling for testing compressed natural gas cylinders as defined in claim 5, wherein: The lower end of the limiting block (11) is clampedly connected to the hollow structure of the connecting lug (12), and the limiting block (11) is fixedly connected to the upper end of the compressed natural gas bottle body (1) symmetrically front and back.

7. A fitting for testing compressed natural gas cylinders as defined in claim 6, wherein: The position of the limiting block (11) corresponds to the position of the limiting plate (13) one by one, and the limiting plate (13) is fixedly connected to the front and rear ends of the compressed natural gas bottle body (1).

8. A fitting for testing compressed natural gas cylinders as defined in claim 7, wherein: The thickness of the limiting block (11) and the minimum contraction state of the waterproof spring (10) are equal to the inner depth of the mounting block (9).

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