Plugging head of gas pipeline

Abstract

The utility model provides a plugging head of a gas pipeline, which belongs to the technical field of gas pipeline plugging and comprises a connecting ring, a plugging pipe is fixedly connected to the inner side of the connecting ring, a plurality of connecting springs are arranged on the surface of the connecting ring, one end of each connecting spring is fixedly connected with a plugging block, and the other end of each connecting spring is fixedly connected with a plug. One end of the connecting ring is fixedly connected with a plugging pipe, the other end of the connecting ring is fixedly connected with a plugging cover, a plurality of limiting blocks are arranged on the surface of the connecting ring, a plurality of limiting sliding grooves are formed in the surface of the plugging block, and a supporting mechanism is arranged on the surface of the plugging cover. And at the moment, the gas pipeline can be plugged under the action of the plugging block and the plugging cover, and then the supporting mechanism is adjusted to fix the plugging pipe from the gas pipeline, so that the stability of the plugging head during use is improved, and the anti-pressure capability of the plugging head during use is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pipeline plugging, and in particular relates to a plugging head for a gas pipeline. Background Art

[0002] Gas pipelines are pipelines specially used to transport combustible gases. They can replace traditional rubber hoses and solve the problems of rubber hoses being easy to fall off, easy to age, easy to be eaten by insects, and having a short service life. Gas pipelines have the characteristics of easy installation, reliable connection, corrosion resistance, no gas blockage, good flexibility, and long service life. The surface soft protective layer material is safer, easier to clean, and more beautiful. With the development of the diversity of customers' gas use methods, the types of commercial gas equipment have changed frequently, and gas equipment often increases or decreases. Due to insufficient safety awareness, some customers did not seal the fire head of the gas pipeline after dismantling the original equipment, which posed a risk of gas leakage.

[0003] The existing patent announcement number is CN207005558U, and the public name is a universal sealing plug for polyethylene gas pipelines, including an upper plug and a lower plug. The top of the upper plug is provided with a cross groove, the interior of the upper plug is provided with a groove, the interior of the groove is provided with a screw, the outside of the screw is provided with a slider, one end of the slider is provided with a plug, one end of the plug is provided with a spacing groove, the top of the plug is provided with a rubber layer, the outside of the plug is provided with a plug hole, and the bottom of the screw is provided with a lower plug.

[0004] Although the above-mentioned sealing plug is provided with a lower plug at the bottom of the screw, the lower plug rises along the spiral of the screw to squeeze the slider in the groove to facilitate the outward expansion of the plug, and the rubber layer gradually fills the gap between the plug and the inner wall of the pipeline in the process of following the movement of the plug, thereby increasing the pressure of the plug on the inner wall of the gas pipeline, avoiding excessive gas pressure in the gas pipeline from rushing the plug open, and ensuring good air tightness of the gas pipeline, but the above-mentioned sealing plug is less practical when used due to the different inner diameters of the pipelines, and the sealing plug needs to be inserted into the interior of the pipeline when used. Since the lower plug is conical, it brings a lot of inconvenience to the staff. Utility Model Content

[0005] The utility model aims to provide a plugging head for a gas pipeline, aiming to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A plugging head for a gas pipeline comprises: a connecting ring, a plugging tube is fixedly connected to the inner side of the connecting ring, a plurality of connecting springs are arranged on the surface of the connecting ring, a plugging block is fixedly connected to one end of the connecting spring, a plugging cover is fixedly connected to the other end of the connecting ring, a plurality of limiting blocks are arranged on the surface of the connecting ring, a plurality of limiting sliding grooves are opened on the surface of the plugging block, and a supporting mechanism is arranged on the surface of the plugging cover.

[0008] As a preferred solution of the utility model, the plurality of connecting springs are fixedly connected to the surface of the connecting ring in an annular array, and the plurality of limiting blocks are respectively slidably connected to the surfaces of the plurality of limiting sliding grooves.

[0009] As a preferred solution of the utility model, a sealing ring is arranged on the outer side of the blocking tube, and the sealing ring is adapted to the inner wall of the blocking block.

[0010] As a preferred scheme of the utility model, the supporting mechanism includes a mounting block fixedly connected to the inner wall of the blocking cover, the surface of the mounting block is rotatably connected to a threaded rod, the surface of the mounting block and located on the outside of the threaded rod is fixedly connected to a first supporting member, the surface of the threaded rod is threadedly connected to a second supporting member, the surfaces of the first supporting member and the second supporting member are both rotatably connected to multiple supporting rods, and the two support rods are directly hinged, one end of the outer side of the support rod is rotatably connected to a connecting rod, and the other support rod is slidably connected to the surface of the connecting rod, the surface of the outer side of the connecting rod is fixedly connected to an arc block, one end of the first support member is fixedly connected to a buffer spring, and the buffer spring is in contact with the second support member.

[0011] As a preferred solution of the utility model, a blocking block is fixedly connected to one end of the threaded rod, and the cross-sectional area of ​​the blocking block is adapted to the cross-sectional area of ​​the second support member.

[0012] As a preferred solution of the utility model, the support mechanism also includes a hexagonal knob rotatably connected to the surface of the blocking cover, and the hexagonal knob is fixedly connected to one end of the threaded rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] This solution is to put a sealing tube on the surface of the gas pipeline, at which time the gas pipeline can be sealed under the action of the sealing block and the sealing cover, and then adjust the supporting mechanism to fix the sealing tube from the gas pipeline, thereby increasing the stability of the sealing head when in use and increasing the pressure resistance of the sealing head when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a top view of the overall structure of the utility model;

[0018] Figure 2 It is a bottom view of the overall structure of the utility model;

[0019] Figure 3 It is an exploded view of a local structure in the structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the support mechanism in the structure of the utility model from a first perspective;

[0021] Figure 5 This is a schematic diagram of the support mechanism in the structure of the utility model from a second viewing angle.

[0022] In the figure: 1. connecting ring; 2. sealing tube; 3. connecting spring; 4. sealing block; 5. sealing cover; 6. limiting block; 7. limiting slide groove; 8. supporting mechanism; 801. mounting block; 802. threaded rod; 803. blocking block; 804. first supporting member; 805. second supporting member; 806. supporting rod; 807. connecting rod; 808. arc block; 809. hexagonal knob; 810. buffer spring; 9. sealing ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-5 , the technical solution provided by this embodiment is as follows:

[0026] A plugging head for a gas pipeline, comprising: a connecting ring 1, a plugging tube 2 is fixedly connected to the inner side of the connecting ring 1, a plurality of connecting springs 3 are arranged on the surface of the connecting ring 1, a plugging block 4 is fixedly connected to one end of the connecting spring 3, a plugging cover 5 is fixedly connected to the other end of the connecting ring 1, a plurality of limiting blocks 6 are arranged on the surface of the connecting ring 1, a plurality of limiting slide grooves 7 are opened on the surface of the plugging block 4, a supporting mechanism 8 is arranged on the surface of the plugging cover 5, a plurality of connecting springs 3 are fixedly connected to the surface of the connecting ring 1 in an annular array, a plurality of limiting blocks 6 are respectively slidably connected to the surfaces of the plurality of limiting slide grooves 7, by putting the plugging tube 2 on the surface of the gas pipeline, the gas pipeline can be plugged under the action of the plugging block 4 and the plugging cover 5, and then the supporting mechanism 8 is adjusted to fix the plugging tube 2 from the gas pipeline, thereby increasing the stability of the plugging head when in use and increasing the pressure resistance of the plugging head when in use.

[0027] Specifically, a sealing ring 9 is provided on the outer side of the blocking tube 2 , and the sealing ring 9 is adapted to the inner wall of the blocking block 4 .

[0028] In a specific embodiment of the present invention, by providing the sealing ring 9, the air tightness between the connecting ring 1 and the blocking block 4 can be increased, while the blocking effect on the gas pipeline is increased.

[0029] Specifically, the supporting mechanism 8 includes a mounting block 801 fixedly connected to the inner wall of the blocking cover 5, the surface of the mounting block 801 is rotatably connected to a threaded rod 802, the surface of the mounting block 801 and located on the outer side of the threaded rod 802 is fixedly connected to a first supporting member 804, the surface of the threaded rod 802 is threadedly connected to a second supporting member 805, the surfaces of the first supporting member 804 and the second supporting member 805 are both rotatably connected to a plurality of supporting rods 806, and the two supporting rods 806 are directly hinged, one end of the outer side of the supporting rod 806 is rotatably connected to a connecting rod 807, and the other supporting rod 806 is slidably connected to the surface of the connecting rod 807, the surface of the outer side of the connecting rod 807 is fixedly connected to an arc block 808, one end of the first supporting member 804 is fixedly connected to a buffer spring 810, and the buffer spring 810 is in contact with the second supporting member 805, the supporting mechanism 8 also includes a hexagonal knob 809 rotatably connected to the surface of the blocking cover 5, and the hexagonal knob 809 is fixedly connected to one end of the threaded rod 802.

[0030] In a specific embodiment of the utility model, when the arc block 808 needs to be adjusted, the hexagonal knob 809 is rotated. The rotation of the hexagonal knob 809 drives the threaded rod 802 to rotate. The rotation of the threaded rod 802 drives the second support member 805 to move. At this time, under the action of the first support member 804, the support rod 806 is driven to adjust. The movement of the support rod 806 drives the connecting rod 807 and the arc block 808 to move, thereby fitting the inner wall of the gas pipeline.

[0031] Specifically, one end of the threaded rod 802 is fixedly connected to a blocking block 803 , and the cross-sectional area of ​​the blocking block 803 is adapted to the cross-sectional area of ​​the second support member 805 .

[0032] In a specific embodiment of the present invention, the movement track of the second support member 805 can be limited by setting the blocking block 803 , thereby reducing the probability of the second support member 805 falling off the surface of the threaded rod 802 .

[0033] Working principle: By putting the sealing tube 2 on the surface of the gas pipeline, the gas pipeline can be sealed under the action of the sealing block 4 and the sealing cover 5. When the arc block 808 needs to be adjusted, the hexagonal knob 809 is turned. The rotation of the hexagonal knob 809 drives the threaded rod 802 to rotate. The rotation of the threaded rod 802 drives the second support member 805 to move. At this time, the support rod 806 is adjusted under the action of the first support member 804. The movement of the support rod 806 drives the connecting rod 807 and the arc block 808 to move, thereby fitting the inner wall of the gas pipeline and increasing the pressure resistance of the sealing head when in use.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. 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 plugging head for a gas pipeline, characterized in that: include: A connecting ring (1), the inner side of which is fixedly connected to a blocking tube (2), the surface of the connecting ring (1) is provided with a plurality of connecting springs (3), one end of the connecting spring (3) is fixedly connected to a blocking block (4), the other end of the connecting ring (1) is fixedly connected to a blocking cover (5), the surface of the connecting ring (1) is provided with a plurality of limiting blocks (6), the surface of the blocking block (4) is provided with a plurality of limiting sliding grooves (7), and the surface of the blocking cover (5) is provided with a supporting mechanism (8).

2. A plugging head for a gas pipeline according to claim 1, characterized in that: The plurality of connection springs (3) are fixedly connected to the surface of the connection ring (1) in an annular array, and the plurality of limit blocks (6) are respectively slidably connected to the surfaces of the plurality of limit sliding grooves (7).

3. A plugging head for a gas pipeline according to claim 1, characterized in that: A sealing ring (9) is provided on the outer side of the blocking tube (2), and the sealing ring (9) is adapted to the inner wall of the blocking block (4).

4. A plugging head for a gas pipeline according to claim 1, characterized in that: The support mechanism (8) comprises a mounting block (801) fixedly connected to the inner wall of the blocking cover (5); a threaded rod (802) is rotatably connected to the surface of the mounting block (801); a first support member (804) is fixedly connected to the surface of the mounting block (801) and located outside the threaded rod (802); a second support member (805) is threadedly connected to the surface of the threaded rod (802); and the surfaces of the first support member (804) and the second support member (805) are both rotatably connected to the plurality of support members. A support rod (806) is provided, and the two support rods (806) are directly hinged, one end of the outer side of the support rod (806) is rotatably connected to a connecting rod (807), and the other support rod (806) is slidably connected to the surface of the connecting rod (807), the outer surface of the connecting rod (807) is fixedly connected to an arc block (808), one end of the first support member (804) is fixedly connected to a buffer spring (810), and the buffer spring (810) is in contact with the second support member (805).

5. A plugging head for a gas pipeline according to claim 4, characterized in that: One end of the threaded rod (802) is fixedly connected to a blocking block (803), and the cross-sectional area of ​​the blocking block (803) is adapted to the cross-sectional area of ​​the second support member (805).

6. A plugging head for a gas pipeline according to claim 5, characterized in that: The support mechanism (8) further comprises a hexagonal knob (809) rotatably connected to the surface of the blocking cover (5), and the hexagonal knob (809) is fixedly connected to one end of the threaded rod (802).

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