Pipeline sealing structure

Abstract

The utility model discloses a pipeline sealing structure, and relates to the technical field of pipeline sealing, the pipeline sealing structure comprises a sealing ring for sealing a pipeline joint, a movable channel is formed in the sealing ring, an outer abutting ring is fixedly arranged on the inner ring surface of the movable channel, and a plurality of extrusion supporting mechanisms with the same structure and installation mode are arranged in the outer abutting ring in an array mode; the extrusion supporting mechanism comprises a lantern ring rotationally arranged on the inner ring face of the outer abutting ring, a transverse rod is fixedly arranged on the outer ring face of the side, away from the outer abutting ring, of the lantern ring, a movable sliding block is fixedly arranged on the side, away from the lantern ring, of the transverse rod, an arrowhead-shaped movable block is fixedly arranged on the outer surface of one side of the movable sliding block, and an inner abutting ring is slidably arranged on one side of the arrowhead-shaped movable block. The problems that when the sealing ring is used, the sealing ring is damaged, and the sealing ring cannot be tightly connected with a pipeline structure groove are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipe sealing technology, in particular to a pipe sealing structure. BACKGROUND

[0002] The pipe sealing assembly is used to seal the interface of the pipe, which is connected by pipes, pipe connectors and valves, etc. for conveying gas, liquid or fluid with solid particles. Generally, the fluid is conveyed from high pressure to low pressure of the pipe after being pressurized by a blower, a compressor, a pump and a boiler, etc. The sealing ring, also known as O-shaped sealing ring, is a kind of sealing accessory.

[0003] However, the existing sealing ring structure is relatively simple, and is easily extruded and deformed during use, which may cause damage to the sealing ring itself, thereby affecting the sealing performance. In addition, the sealing ring cannot be tightly connected with the groove when it is pre-contacted with the groove of the pipe and is extruded, which may affect the sealing effect and time. CONTENT OF THE INVENTION

[0004] In order to improve the problem of self-damage of the sealing ring during use and the problem that the sealing ring cannot be tightly connected with the groove of the pipe structure, the present application provides a pipe sealing structure.

[0005] The pipe sealing structure provided by the present application adopts the following technical scheme:

[0006] A pipe sealing structure comprises a sealing ring for sealing the interface of the pipe, an active channel is formed in the sealing ring, an outer abutting ring is fixedly arranged on the inner ring surface of the active channel, and a plurality of extrusion support mechanisms with the same structure and mounting mode are arranged in an array in the inner ring surface of the outer abutting ring.

[0007] The extrusion support mechanism comprises a sleeve ring rotatably arranged on the inner ring surface of the outer abutting ring, a horizontal rod is fixedly arranged on the outer ring surface of the side of the sleeve ring away from the outer abutting ring, a moving block is fixedly arranged on the side of the horizontal rod away from the sleeve ring, an arrow-shaped moving block is fixedly arranged on the outer surface of one side of the moving block, and an inner abutting ring is slidingly arranged on one side of the arrow-shaped moving block.

[0008] Through the above technical scheme, the sealing ring and the active channel cooperate to provide sufficient space for the steel wire, the outer abutting ring and the entire extrusion support mechanism, and to improve the deformation phenomenon of the sealing ring. The extrusion support mechanism and the outer abutting ring cooperate to effectively realize the fit between the sealing ring and the pipe sealing groove and reduce the gap therebetween.

[0009] Preferably, the extrusion support mechanism further comprises a moving sliding groove arranged in sliding relationship with the moving sliding block, the moving sliding groove being fixedly penetrated through the outer sleeve rod.

[0010] By adopting the above technical scheme, the arrangement of the moving sliding groove can allow the cross rod and the moving sliding block to slide better and play a guiding and supporting role.

[0011] Preferably, the moving sliding block is fixedly arranged with a spring at the middle of the side surface away from the sleeve ring, the spring being fixedly connected with the inner surface of the moving sliding groove away from the sleeve ring.

[0012] By adopting the above technical scheme, the spring can support the moving sliding block and the outer abutting ring in the normal state and push the moving sliding block back to the original position when the moving sliding block loses the extrusion force.

[0013] Preferably, a plurality of array-arranged and identically-structured inner sliding grooves are arranged around the inner abutting ring, and the interiors of the plurality of inner sliding grooves are fixedly connected with the exteriors of the plurality of outer sleeve rods away from the sleeve ring.

[0014] By adopting the above technical scheme, the mutual fixation of the inner sliding grooves and the outer sleeve rods can effectively support the entire extrusion support mechanism.

[0015] Preferably, a plurality of array-arranged and identically-structured telescopic wheels are fixedly arranged on the inner annular surface of the outer abutting ring, and the middle recesses of the plurality of telescopic wheels are rotatably connected with the inner annular surface of the sleeve ring.

[0016] By adopting the above technical scheme, the mutual rotation connection of the telescopic wheels and the sleeve ring can improve the activity performance of the extrusion support mechanism and also help the activity of the sealing ring.

[0017] Preferably, steel wires capable of playing a supporting role are fixedly arranged on both sides of the plurality of telescopic wheels.

[0018] By adopting the above technical scheme, the steel wires can provide good support performance for the sealing ring.

[0019] Preferably, the side surfaces away from the sleeve ring of the plurality of arrow-shaped moving blocks are triangular inclined surfaces with consistent angles, and the triangular inclined surfaces of the plurality of arrow-shaped moving blocks abut against each other.

[0020] By adopting the above technical scheme, the arrow-shaped moving blocks are arranged as inclined surfaces with consistent angles to better realize abutment and pushing effect.

[0021] Preferably, the two sides of the plurality of telescopic wheels can be telescopically expanded to improve the support performance of the steel wires.

[0022] By adopting the above technical scheme, the two sides of the telescopic wheels can be telescopically opened to the two sides to ensure that the steel wires can realize a certain tensioning effect as the sealing ring.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The telescopic wheel and the ring are connected with each other by rotation, which can offset a part of the torsion of the sealing ring when it is extruded, and the support performance between the outer abutting ring and the entire extrusion support mechanism can reduce the torsion phenomenon of the rubber ring when it is extruded, thereby reducing the poor sealing effect caused by the damage of the rubber ring.

[0025] 2. With the cooperation of the inner abutting ring and the outer sleeve rod, the arrow-shaped moving block, the moving slider, and the movement of the crossbar are supported, and the moving slider and the crossbar can drive the arrow-shaped moving block to move inward when they are moved by the extrusion force of the telescopic wheel and the ring, thereby extruding other arrow-shaped moving blocks, supporting other extrusion support mechanisms in the opposite direction, supporting the sealing ring, and filling the gap in the pipeline sealing groove, thereby achieving better sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the sealing ring structure of the present application;

[0027] Figure 2 It is a steel wire setting position diagram of the present application;

[0028] Figure 3 It is an internal structure diagram of the movable channel of the present application;

[0029] Figure 4 It is an internal connection structure diagram of the outer abutting ring of the present application;

[0030] Figure 5 It is an explosion schematic diagram of the extrusion support mechanism of the present application.

[0031] Reference signs: 1, sealing ring; 2, movable channel; 3, outer abutting ring;

[0032] 4, extrusion support mechanism; 41, ring; 42, crossbar; 43, moving slider; 44, arrow-shaped moving block; 45, outer sleeve rod; 46, moving sliding groove; 47, spring;

[0033] 5, steel wire; 6, inner abutting ring; 7, inner sliding groove; 8, telescopic wheel. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the Figures 1-5 The present application will be further described in detail.

[0035] The present application discloses a sealing structure of a pipeline.

[0036] Referring toFigure 1 、 Figure 2 、 Figure 3 、 Figure 4 A sealing structure of a pipeline, comprising a sealing ring 1 for sealing at a pipeline interface, and a through active channel 2 is opened in the inside of the sealing ring 1, and the active channel 2 and the sealing ring 1 can be formed at one time, and the inner ring surface of the active channel 2 and the outer ring surface of the outer abutting ring 3 are fixedly arranged with each other, and a plurality of telescopic wheels 8 are fixedly arranged on the inner ring surface of the outer abutting ring 3, and the plurality of telescopic wheels 8 are symmetrically and arrayed around, and the structure and the mounting mode of the plurality of telescopic wheels 8 are the same, and the two sides of the telescopic wheel 8 can be outwardly telescopic and expanded, and the two side surfaces of the plurality of telescopic wheels 8 are fixedly connected with the two side surfaces of the steel wire 5 which can play a supporting role, and the telescopic function of the two sides of the plurality of telescopic wheels 8 can improve the supporting performance of the steel wire 5 to the sealing ring 1 in the active channel 2, and the middle groove surface of the plurality of telescopic wheels 8 can be rotatably connected with the inner ring surface of the plurality of sleeve rings 41.

[0037] The sealing ring 1 and the active channel 2 can be produced by the method of integral molding to save cost and installation time, and the outer abutting ring 3 can be made of a material with certain elastic deformation, which can not only support the sealing ring 1, but also have the function of following the deformation of the sealing ring 1, and the fixed connection of the telescopic wheel 8 and the steel wire 5 can assist the outer abutting ring 3 to better support the sealing ring 1 and change the fitting area between the sealing ring 1 and the pipeline inner sealing groove, and reduce the gap between the sealing ring 1 and the inner wall of the pipeline inner sealing groove.

[0038] It should be noted that the sealing ring 1 is made of PVDF (polyvinylidene fluoride) material, and because of the excellent chemical resistance, wide temperature resistance range, high mechanical strength, and non-stick and self-cleaning properties of the polyvinylidene fluoride material, the long-term effectiveness and reliability of the pipeline sealing can be ensured in the pipeline sealing, in addition, the PVDF material also has excellent mechanical strength and rigidity, and good sliding and wear resistance.

[0039] Referring to Figure 4 、 Figure 5Within the outer abutment ring 3, a plurality of extrusion support mechanisms 4 are arranged in an array, and the structure and mounting mode of the plurality of extrusion support mechanisms 4 are the same, and the extrusion support mechanism 4 comprises a sleeve ring 41 rotatably arranged on the inner ring surface of the outer abutment ring 3, and the inner ring surface of the sleeve ring 41 is connected with the groove of the telescopic wheel 8, and the connection relationship between the sleeve ring 41 and the outer abutment ring 3 is rotary connection, and the outer ring surface of the sleeve ring 41 away from the outer abutment ring 3 and the telescopic wheel 8 is fixedly connected with one side surface of the cross rod 42, and one end of the cross rod 42 movably penetrates the moving sliding groove 46 away from the inner sliding groove 7 and is fixedly connected with the inner cavity surface in the middle of the inner sliding groove 7, and the side surface of the cross rod 42 away from the sleeve ring 41 is fixedly connected with the moving block 43 located in the middle of the side surface of the sleeve ring 41, and the middle of the side surface of the moving block 43 away from the cross rod 42 is fixedly connected with the spring 47 away from one end of the inner abutment ring 6, and the other end of the spring 47 away from the moving block 43 is fixedly connected with the moving sliding groove 46 located in the middle of the inner cavity surface of the inner abutting ring 6, and the spring 47, the moving block 43 and the cross rod 42 are arranged in the moving sliding groove 46, and the moving sliding groove 46 is arranged in the outer sleeve rod 45, and the moving sliding groove 46 directly penetrates through the entire outer sleeve rod 45, and the upper and lower surfaces of the outer sleeve rod 45 away from the sleeve ring 41 are fixedly connected with the inner sliding groove 7, and the inner sliding groove 7 is arranged on the inner abutment ring 6, and the inner sliding groove 7 also penetrates through the entire inner abutment ring 6, and the side surface of the moving block 43 away from the outer sleeve rod 45 is fixedly connected with the side surface of the arrow-shaped moving block 44, and the side surface of the arrow-shaped moving block 44 away from the sleeve ring 41 is arranged to abut and slide with the side surface of the inner abutment ring 6, and the plurality of arrow-shaped moving blocks 44 away from the sleeve ring 41 are arranged as triangular inclined surfaces with consistent inclination angles, and the triangular inclined surfaces of the plurality of arrayed arrow-shaped moving blocks 44 can abut and push each other, and the inclination angle of the inclined surface of the arrow-shaped moving block 44 can be designed according to actual needs.

[0040] Referring to Figure 3 , Figure 4 , Figure 5 The inner abutment ring 6 slidably arranged with the side surface of the arrow-shaped moving block 44 is provided with a plurality of inner sliding grooves 7 around, and the plurality of inner sliding grooves 7 are symmetrically and arrayed, and the structures of the plurality of inner sliding grooves 7 are the same, and the outer diameters of the plurality of inner sliding grooves 7 are consistent with the outer diameter of the outer sleeve rod 45, and the outer surface of the outer sleeve rod 45 and the inner surface of the inner sliding groove 7 can be fixedly connected.

[0041] The sleeve ring 41 is rotationally connected with the telescopic wheel 8, so that the telescopic wheel 8 can drive the sleeve ring 41 to move when the telescopic wheel 8 moves with the outer abutting ring 3, and the sleeve ring 41 can also drive the horizontal rod 42 fixedly connected therewith to move when the sleeve ring 41 moves, and the horizontal rod 42 can drive the moving block 43 fixedly connected therewith to move synchronously inside the moving slot 46 when the horizontal rod 42 moves, and the moving slot 46 is arranged on the outer sleeve rod 45, and the outer sleeve rod 45 is fixedly connected with the inner sliding slot 7 arranged on the inner abutting ring 6, so that the inner abutting ring 6 and the outer sleeve rod 45 can cooperate with each other to provide support for the movement of the moving block 43, and the spring 47 fixedly arranged on the side of the moving block 43 away from the horizontal rod 42 can push the horizontal rod 42 and the sleeve ring 41 back to the original position when the moving block 43 loses the extrusion, and the moving block 43 can drive the arrow-shaped moving block 44 to move synchronously when the moving block 43 moves, because the side of the arrow-shaped moving block 44 away from the sleeve ring 41 is arranged as an isosceles triangular inclined surface, and a plurality of arrow-shaped moving blocks 44 designed as needed abut each other, so that when a single arrow-shaped moving block 44 moves, the remaining arrow-shaped moving blocks 44 will be pushed to move in the opposite direction, so that the entire extrusion supporting mechanism 4 performs the reverse operation of the above-mentioned action, and the sleeve ring 41 pushes the telescopic wheel 8 and the outer abutting ring 3 to open the sealing ring 1, thereby increasing the contact area of the sealing ring 1 and the inner wall of the sealing groove in the pipeline, thereby achieving tight connection and reducing leakage, and according to the rotation of the sleeve ring 41 and the telescopic wheel 8, a part of the force generated by the mutual friction when the sealing member and the sealing ring 1 contact can be offset, thereby reducing the risk of cracks and breakage of the sealing ring 1 due to its own torsion.

[0042] It should be noted that the sealing ring 1 is a prior art, and its structure and principle will not be described here. The extrusion supporting mechanism 4 and the outer abutting ring 3 need to be set in number according to the actual situation, but not less than four.

[0043] The implementation principle of the sealing structure of a pipeline in the embodiment of the present application is as follows: first, the sealing ring 1 is placed in the groove at the pipeline interface, and then the staff can squeeze the surface of the sealing ring 1 outside the groove, so that the sealing ring 1 can squeeze the outer abutment ring 3, and when the outer abutment ring 3 is squeezed, it can drive the telescopic wheel 8 to move inward, and then drive the ring 41 to move inward together, and when the ring 41 moves inward, it can drive the cross bar 42 to move in the moving slide 46, and then drive the moving slider 43 to move in the moving slide 46, and the moving slider 43 moves The spring 47 can be squeezed and simultaneously drive the arrow-shaped moving block 44 to move synchronously. When the arrow-shaped moving block 44 moves inward, it will squeeze the other arrow-shaped moving blocks 44 that are in contact with its inclined surfaces, thereby causing the other arrow-shaped moving blocks 44 to move in the opposite direction, thereby driving the moving slider 43, the cross bar 42 and the ring 41 to move in the opposite direction synchronously, and at the same time push the telescopic wheel 8 and the outer abutment ring 3 on the side fixed to the telescopic wheel 8 to open outward, thereby pushing the steel wire 5 to open outward, so that the steel wire 5 will open the sealing ring 1 and press it tightly against the groove wall at the pipeline interface to limit the position.

[0044] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A pipeline sealing structure, characterized in that: The invention comprises a sealing ring (1) for sealing at a pipe interface, wherein a movable channel (2) is provided inside the sealing ring (1), an outer abutting ring (3) is fixedly provided on the inner ring surface of the movable channel (2), and a plurality of extrusion support mechanisms (4) having the same structure and installation method are arranged in an array inside the outer abutting ring (3); The extrusion support mechanism (4) comprises a collar (41) rotatably arranged on the inner ring surface of the outer abutment ring (3); a crossbar (42) is fixedly provided on the outer ring surface of the collar (41) away from the outer abutment ring (3); a movable slider (43) is fixedly provided on the side of the crossbar (42) away from the collar (41); an arrow-shaped movable block (44) is fixedly provided on the outer surface of one side of the movable slider (43); and an inner abutment ring (6) is slidably provided on one side of the arrow-shaped movable block (44).

2. A pipeline sealing structure according to claim 1, characterized in that: The extrusion support mechanism (4) further comprises a movable slide groove (46) which is slidably arranged with the movable slider (43), and the movable slide groove (46) is fixedly penetrated and opened on the outer sleeve (45).

3. The pipeline sealing structure according to claim 1, characterized in that: A spring (47) is fixedly provided on the middle portion of the surface of the movable slider (43) away from the collar (41) and is fixedly connected to the inner surface of the movable chute (46) away from the collar (41).

4. The pipeline sealing structure according to claim 1, characterized in that: The inner abutting ring (6) is provided with a plurality of inner sliding grooves (7) arranged in an array and having the same structure. The interiors of the plurality of inner sliding grooves (7) are fixedly connected to the exteriors of the plurality of outer rods (45) away from the collar (41).

5. The pipeline sealing structure according to claim 1, characterized in that: A plurality of telescopic wheels (8) arranged in an array and having the same structure are fixedly provided on the inner ring surface of the outer abutting ring (3); the grooves in the middle of the plurality of telescopic wheels (8) are rotatably connected to the inner ring surfaces of the plurality of sleeve rings (41).

6. The pipeline sealing structure according to claim 5, characterized in that: Steel wires (5) capable of playing a supporting role are fixedly provided on both sides of the plurality of telescopic wheels (8).

7. The pipeline sealing structure according to claim 1, characterized in that: The surfaces of the arrow-shaped moving blocks (44) on one side away from the collar (41) are arranged as triangular inclined surfaces with the same angle, and the triangular inclined surfaces of the arrow-shaped moving blocks (44) abut against each other.

8. The pipeline sealing structure according to claim 5, characterized in that: Both sides of the plurality of telescopic wheels (8) can be telescopically expanded and expanded to improve the supporting performance of the steel wire (5).

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