Double-locking type gas pipeline end plugging device

Abstract

The utility model relates to a double-locking type gas pipeline end plugging device which comprises a gas pipeline, a plugging handle, a plugging head, a locking frame and a U-shaped unlocking frame. The side face of the plugging head is provided with two sealing rings which are arranged on the plugging head in a sleeving mode and arranged in the axial direction of the plugging head. The plugging handle is fixedly connected to the tail of the plugging head. The four locking frames are annularly distributed and fixed to the plugging handle, the four U-shaped unlocking frames are inserted into the locking frames in a penetrating mode, and the plugging handle is sleeved with the tail portions of the U-shaped unlocking frames in a hollowed-out annular mode. An adjusting sleeve is arranged at the tail part of the plugging handle; a fixing shaft, involute-shaped locking plates and a spring are arranged at the end of the locking frame, and the eight involute-shaped locking plates are annularly arranged around the axis of the plugging handle; according to the gas pipeline end plugging device, double locking of the gas pipeline end plugging device is achieved through the four involute-shaped locking plates attached to the inner wall and the outer wall of the gas pipeline, safety is improved, and using is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas overhauling technical field especially point to a double locking type gas pipeline end plugging device. BACKGROUND

[0002] The gas pipeline is a kind of special pipeline for conveying combustible gas, with the characteristics of convenient installation, reliable connection, corrosion resistance, no gas blocking, good flexibility, long service life, arbitrary bending without deformation, no gas blocking and the like, when the gas pipeline needs to be repaired or the downstream of the gas pipeline is swept, plugging piece is needed to block the gas;The existing gas pipeline plugging piece has certain disadvantages when in use, the structure of the plugging piece is complex, the operation process is cumbersome, and the safety locking mechanism is single, which has safety hazards. SUMMARY

[0003] To solve the above problems, the utility model provides a double locking type gas pipeline end plugging device.

[0004] The utility model discloses a double locking type gas pipeline end plugging device, including gas pipeline, plugging handle, plugging head, lock frame and U-shaped unlocking frame, the plugging head side is equipped with two sealing rings that are arranged along the axial direction of the plugging head and are sleeved on the plugging head, and the plugging handle is fixedly connected to the tail part of the plugging head;The lock frame is four annular arrangements fixed on the plugging handle, and the U-shaped unlocking frame is four inserted on the lock frame, and the tail part of the U-shaped unlocking frame is hollow annularly sleeved on the plugging handle;The tail part of the plugging handle is equipped with an adjusting sleeve;The end part of the lock frame is equipped with a fixed shaft, a involute locking plate and a spring, and the involute locking plate is eight annular arrangements around the axis of the plugging handle.

[0005] Preferably, the sealing ring is made of silica gel or rubber material, and when the plugging head is inserted into the gas pipeline, the sealing ring is pressed between the plugging head and the gas pipeline.

[0006] Preferably, the tail part of the plugging handle is provided with a threaded section, and the adjusting sleeve is engaged with the threaded section.

[0007] Preferably, the involute locking plate is connected to the lock frame through the fixed shaft, and the involute locking plate can rotate on the lock frame around the fixed shaft.

[0008] Preferably, the main view of the involute locking plate is in the shape of involute, and the cross section of the involute locking plate is circular.

[0009] Preferably, the spring is fixedly connected to the end of the involute locking plate and the end of the U-shaped unlocking frame respectively, and the U-shaped unlocking frame can compress or stretch the spring in the sliding process on the plugging handle.

[0010] Preferably, the U-shaped unlocking frame is provided with a clamping groove close to the end of the adjusting sleeve, and the side surface of the adjusting sleeve is embedded in the clamping groove and can rotate.

[0011] The utility model discloses beneficial effect is: through four involute locking plates that fit in the gas pipeline inner wall and gas pipeline outer wall realizes the double locking of gas pipeline end plugging device, improves the security, and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a kind of double locking type gas pipeline end plugging device's perspective view.

[0013] Figure 2 It is a kind of double locking type gas pipeline end plugging device's front view.

[0014] Figure 3 It is Figure 2 A-A section view in the middle.

[0015] Figure 4 It is Figure 2 A-A section view in the middle.

[0016] In the drawing: 1, gas pipeline;2, plugging handle, 21, plugging head, 22, threaded section;3, sealing ring;4, locking frame, 41, fixed shaft;5, involute locking plate;6, U-shaped unlocking frame;7, adjusting sleeve;8, spring;9, clamping groove. DETAILED DESCRIPTION

[0017] In order to make the technical scheme of the utility model more clearly, the utility model is further described below in combination with the drawings specific embodiment;It needs to be explained that, the words "front", "back", "left", "right", "up" and "down" in the following description refer to the direction in the drawing, and the words "in" and "out" respectively refer to the direction towards or away from the geometric center of a particular component.

[0018] As Figures 1-4 Indicated, the utility model discloses a kind of double locking type gas pipeline end plugging device, including gas pipeline 1, plugging handle 2, plugging head 21, locking frame 4 and U-shaped unlocking frame 6;The side surface of plugging head 21 is provided with two sealing rings 3, which are sleeved on plugging head 21 and arranged along the axial direction thereof, and plugging handle 2 is fixedly connected to the tail portion of plugging head 21;The locking frame 4 is four annular arrangements fixed on plugging handle 2, and the U-shaped unlocking frame 6 is four inserted on the locking frame 4, and the tail portion of the U-shaped unlocking frame 6 is annularly sleeved on plugging handle 2 in a hollow manner;The tail portion of plugging handle 2 is provided with adjusting sleeve 7;The end portion of locking frame 4 is provided with fixed shaft 41, involute locking plate 5 and spring 8, and the involute locking plate 5 is eight annular arrangements around the axis of plugging handle 2.

[0019] In the embodiment, the sealing ring 3 is made of silica gel or rubber material, and when the plugging head 21 is inserted into the gas pipeline 1, the sealing ring 3 is pressed between the plugging head 21 and the gas pipeline 1.

[0020] In the embodiment, the tail of the plugging handle 2 is provided with a threaded section 22, and the adjusting sleeve 7 is engaged with the threaded section 22.

[0021] In the embodiment, the involute-shaped locking plate 5 is connected to the locking frame 4 through a fixed shaft 41, and the involute-shaped locking plate 5 can rotate on the locking frame 4 around the fixed shaft 41.

[0022] In the embodiment, the main view of the involute-shaped locking plate 5 is in the shape of involute, and the cross section of the involute-shaped locking plate 5 is circular.

[0023] In the embodiment, the spring 8 is fixedly connected to the end of the involute-shaped locking plate 5 and the end of the U-shaped unlocking frame 6 respectively, and the U-shaped unlocking frame 6 can compress or stretch the spring 8 in the process of sliding on the plugging handle 2.

[0024] In the embodiment, the U-shaped unlocking frame 6 is provided with a clamping groove 9 close to the end of the adjusting sleeve 7, and the side surface of the adjusting sleeve 7 is embedded in the clamping groove 9 and can rotate.

[0025] In use, first, the plugging head 21 is inserted into the gas pipeline 1, and at this moment, the sealing ring 3 is pressed between the plugging head 21 and the gas pipeline 1.

[0026] Further, in the process of inserting the plugging head 21 into the gas pipeline 1, the gas pipeline 1 is inserted between the plugging handle 2 and the locking frame 4, and at the same time, the gas pipeline 1 is located in the middle of the U-shaped unlocking frame 6, at this moment, the inner wall and the outer wall of the gas pipeline 1 are all adhered to the wall of the gas pipeline 1, and then the adjusting sleeve 7 is rotated clockwise, the adjusting sleeve 7 drives the U-shaped unlocking frame 6 to move away from the end of the gas pipeline 1, at this moment, the U-shaped unlocking frame 6 presses the involute-shaped locking plate 5 adhered to the wall of the gas pipeline 1 through the spring 8 at the end, and the double locking of the end of the gas pipeline 1 is completed, and at the same time, the end of the gas pipeline 1 is sealed.

[0027] Further, when the end of the gas pipeline 1 needs to be removed, first, the adjusting sleeve 7 is rotated counterclockwise, at this moment, the adjusting sleeve 7 drives the U-shaped unlocking frame 6 to move close to the end of the gas pipeline 1, at this moment, the U-shaped unlocking frame 6 pulls the involute-shaped locking plate 5 away from the wall of the gas pipeline 1 through the spring 8 at the end, and then the plugging handle 2 and the plugging head 21 can be pulled out.

[0028] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A double-locking type gas pipeline end sealing device, characterized in that: The utility model relates to a gas pipeline sealing device, which comprises a gas pipeline, a sealing handle, a sealing head, locking racks and U-shaped unlocking racks; the sealing head is provided with two sealing rings on its side surface, which are sleeved on the sealing head and arranged along the axial direction of the sealing head; the sealing handle is fixedly connected to the tail of the sealing head; the locking racks are four annular structures arranged on the sealing handle; the U-shaped unlocking racks are four structures inserted into the locking racks, and the tail of the U-shaped unlocking racks is a hollow annular structure sleeved on the sealing handle; the tail of the sealing handle is provided with an adjusting sleeve; the end of the locking rack is provided with a fixing shaft, a gradually opened locking plate and a spring; and the gradually opened locking plate is an annular structure arranged around the axis of the sealing handle.

2. The dual-lock type gas pipe end sealing device according to claim 1, characterized in that: The sealing rings are made of silica gel or rubber material, and when the sealing head is inserted into the gas pipeline, the sealing rings are pressed between the sealing head and the gas pipeline.

3. The dual-lock type gas pipe end sealing device according to claim 1, characterized in that: The tail of the sealing handle is provided with a threaded section, and the adjusting sleeve is engaged with the threaded section.

4. The dual-lock type gas pipe end sealing device according to claim 1, characterized in that: The gradually opened locking plate is connected to the locking rack through the fixing shaft, and the gradually opened locking plate can rotate around the fixing shaft on the locking rack.

5. The dual-lock type gas pipe end sealing device according to claim 1, characterized in that: The main view of the gradually opened locking plate is in the shape of a gradually opened line, and the cross section of the gradually opened locking plate is in the shape of a circle.

6. The dual-lock type gas pipe end sealing device according to claim 1, characterized in that: The two ends of the spring are fixedly connected to the gradually opened locking plate and the end of the U-shaped unlocking rack respectively, and the U-shaped unlocking rack can compress or stretch the spring during the sliding process on the sealing handle.

7. The dual-lock type gas pipe end sealing device according to claim 1, characterized in that: The end of the U-shaped unlocking rack close to the adjusting sleeve is provided with a clamping groove, and the side surface of the adjusting sleeve is embedded in the clamping groove and can rotate.

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