CN218818908U - Straight pipe leak source sealing clamp - Google Patents

Abstract

The utility model relates to a pipeline leaking stoppage equipment technical field specifically is a straight tube leak source seals fixture, and the inner wall of snap ring is equipped with two arc archs along the axial interval of snap ring, and the arc arch extends to the other end of snap ring by the one end of snap ring, is equipped with the sealing in the arc arch, and the sealing includes the sealed tooth of many arcs that set up along the snap ring interval, forms the injecting glue recess between two arc archs, and the outer wall of snap ring is equipped with the injecting glue hole that communicates with the injecting glue recess. According to the sealing fixture provided by the utility model, when the clamp ring is clamped on the leak source part, the glue injection hole provides a channel for injecting glue and repairing the leak to the leak source part, and the glue injection groove also serves as a glue fixing template after glue injection; the inboard sealing that sets up of snap ring enables the device and overcomes the condition of leak source position unevenness, and the sealing embedding pipe wall surface forms the sealed of leak source position, has solved when the contact surface of current sealing device and pipe wall is the level and smooth, can't carry out effective sealed problem to the concave-convex position.

Description

Straight pipe leak source sealing clamp

Technical Field

The utility model relates to a pipeline leaking stoppage equipment technical field specifically is a straight tube leak source sealing fixture.

Background

When the pipeline leaks, the pipeline is generally welded, replaced or sealed by a clamp and the like. Welding is a common treatment measure, but welding often has great limitations and is influenced by the material of the pipeline, the medium in the pipeline and the external environment of the pipeline; the replacement of the pipeline is less adopted due to high cost; the method for treating the leakage point position by using the sealing clamp is a commonly used solution, and the commonly used sealing clamp generally comprises two semicircular castings, a group of rubber pieces and fastening bolts.

For example, chinese patent document CN 107355633A (application number 201710595605.3) discloses an isolated sealing clamp and sealing process for pressure pipelines, which includes a pipeline clamp capable of wrapping a leakage pipeline, a filling groove is provided in the pipeline clamp, an elastic material is filled in the filling groove, a groove is provided at a joint of the pipeline clamp, an elastic material is provided in the groove, and a sealant injection hole communicated with the filling groove and the groove is further provided on the pipeline clamp. The device can be used only under the condition that the pressure and the temperature are not high, and the working principle of the device is that the sealant extrudes the elastic material to seal a gap between the sealing pipeline clamp and a leakage pipeline, so that after the device is clamped at a leakage point, if high-temperature and high-pressure fluid is conveyed in the pipeline, the leaked fluid can directly contact the elastic material and gather in the elastic material, and the leaked substance cannot be effectively dredged because the elastic material is in a sealing state, so that the elastic material has the risk that the substance at the leakage part pushes out of a sealant injection hole, and is inconvenient to use in actual construction; meanwhile, the shape of the actually used pipeline surface is uneven due to the fact that the production process or the use environment is corroded, the device is not provided with corresponding structural features to match the shape of the pipeline, even if a sealing gasket is arranged on a contact surface, the sealing gasket cannot be ensured to be tightly attached to the pipe wall at the concave-convex position, and therefore the device cannot provide a good sealing effect, is inconvenient to seal the leakage position, and cannot ensure the effect of subsequent glue injection on plugging of the leakage point.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art not enough, provide a straight tube leak source seals fixture, through the injecting glue hole that sets up the link up on the snap ring, effectively seal the leak department fluid and dredge behind the position to the snap ring, set up sealed edge of a knife simultaneously at snap ring and pipeline contact position, also can realize good sealing to the irregular surface of pipeline surface, ensure the shutoff effect to the leak position.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a straight tube leak source seals fixture, snap ring including the symmetry setting, the inner wall of snap ring is equipped with two arc archs along the axial interval of snap ring, the arc arch extends to the other end of snap ring by the one end of snap ring, be equipped with the sealing in the arc arch, the sealing includes follows the sealed tooth of many arcs that the snap ring interval set up, two form the injecting glue recess between the arc arch, the outer wall of snap ring is equipped with the injecting glue hole with injecting glue recess intercommunication.

The utility model provides a sealing fixture, the injecting glue recess of snap ring inboard, after the snap ring chucking was in the leak source position, the injecting glue recess both acted as the buffer space of leaking the fluid, also acted as the colloid fixed die plate after the injecting glue, the injecting glue hole provided to the leak source position injecting glue the passageway of mending leakage; simultaneously, the inboard sealing that sets up of snap ring enables the device and overcomes the condition that the leak source position is unevenness, and the snap ring is at the in-process of progressively chucking, and the sealing embedding pipe wall surface forms the sealed of leak source position, has solved when the contact surface of current sealing device and pipe wall is the level and smooth, can't carry out effective sealed problem to the unsmooth position. And the sealing effect of the device on the leakage point part of the pipeline is further improved by arranging a plurality of sealing teeth.

Preferably, the snap ring is connected to form a circular ring integrally.

Preferably, the cross section of the sealing tooth is isosceles trapezoid, so that the sealing tooth is embedded into the pipe wall to form effective sealing when contacting the pipe wall.

Preferably, the snap ring is provided with a connecting piece for connection, and the connecting piece is used for connecting the two snap rings.

Preferably, the glue injection hole is connected with a glue injection valve.

Preferably, the glue injection valve comprises a valve body and a valve core, a through hole which is through from left to right is formed in the valve body, a convex block matched with the glue injection hole is arranged at the right end of the valve body, an internal thread connected with an external glue injection device is arranged at the left end of the valve body, and the valve core is used for opening and closing the through hole.

Further preferably, the valve body is provided with a valve core hole perpendicular to the through hole, and the valve core is in threaded connection with the valve core hole.

Preferably, the connection mode between the convex block and the glue injection hole is threaded connection, so that the sealing effect at the glue injection hole is improved.

Preferably, a sealing gasket is fixed on the clamping ring and arranged at the butt joint of the two clamping rings so as to optimize the sealing effect when the clamping rings are connected.

The utility model has the advantages that:

1. the utility model provides a sealing fixture, after the snap ring chucking in the leak source position, the injecting glue recess can be used as the buffering space of leakage fluid, the injecting glue hole provides the passageway to leak hunting of leak source position injecting glue, injecting glue recess also serves as the colloid stationary mold after the injecting glue; meanwhile, the sealing part arranged on the inner side of the clamping ring can enable the device to overcome the condition that the leakage point part is uneven, and the sealing part is embedded into the surface of the pipe wall to seal the leakage point part in the process of gradually clamping the clamping ring, so that the problem that the uneven part cannot be effectively sealed when the contact surface of the existing sealing device and the pipe wall is flat is solved;

2. and the sealing effect of the clamping ring during connection is further optimized by utilizing the sealing gasket fixed on the clamping ring.

Drawings

FIG. 1 is a schematic view showing a structure of a snap ring in a straight pipe leak source sealing jig provided in example 1;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view of a straight pipe leak source sealing jig provided in example 2;

FIG. 4 is an exploded view of a straight pipe leak source sealing jig provided in example 2;

FIG. 5 is an exploded view of the glue injection valve provided in embodiment 2;

FIG. 6 is an axial view of the glue injection valve provided in embodiment 2;

FIG. 7 is a view showing a state in which the straight pipe leak source sealing jig provided in example 2 is connected to a straight pipe;

wherein, 1, a left snap ring; 101. a sealing part; 102. injecting glue holes; 103. injecting glue into the groove; 104. a connecting member; 105. bolt holes; 2. a nut; 3. fastening a bolt; 4. a right snap ring; 5. a glue injection valve; 501. a valve body; 5011. a bump; 5012. an internal thread; 5013. a through hole; 5014. a spool bore; 502. a valve core; 5021. a switch identifier; 5022. a valve core through hole; 6. a gasket; 7. a straight tube.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

Example 1:

as shown in fig. 1, a straight tube leak source sealing fixture, snap ring including the symmetry sets up, in this embodiment, the snap ring is left snap ring 1 and right snap ring 4 respectively, be ring shape after left side snap ring 1 and right snap ring 4 are connected, the inner wall of snap ring is equipped with two arc archs along the axial interval of snap ring, the arc arch extends to the other end of snap ring by the one end of snap ring, be equipped with sealing 101 in the arc arch, as shown in fig. 2, in this embodiment, sealing 101 includes the sealed tooth of many arcs that set up along the snap ring interval, the cross-section of sealed tooth is isosceles trapezoid, through setting up many sealed teeth, further lifting means is to the sealed effect at pipeline leak source position. And a glue injection groove 103 is formed between the two arc-shaped protrusions, and a glue injection hole 102 communicated with the glue injection groove 103 is formed in the outer wall of the clamping ring. The clamping ring is provided with a connecting piece 104 for connection, in the embodiment, the connecting piece 104 is a clamping lug, the connecting end parts of the left clamping ring and the right clamping ring are respectively provided with a clamping lug, the clamping lugs are provided with bolt holes 105, and the left clamping ring 1 and the right clamping ring 4 are fixedly connected by utilizing the fastening bolts 3 and the nuts 2.

The clamping ring is further fixedly provided with a sealing gasket, and the sealing gasket is arranged at the butt joint of the two clamping rings to optimize the sealing effect when the clamping rings are connected.

During the specific use, with left snap ring 1 and right snap ring 4 card leak department at straight tube 7, cooperation through fastening bolt 3 and nut 2 and bolt hole 105, the both sides snap ring is gradually at pipe wall surface chucking, the in-process of chucking, the sealing tooth of sealing 101 also imbeds gradually in the pipe wall, unsmooth position that the pipe wall surface exists is sealed by the embedding of sealing tooth formation, thereby avoided current fixture and pipeline contact surface to lead to the unable effective problem sealed in unsmooth position for the plane, and simultaneously, the sealed pad that the snap ring coupling end portion set up also can effectively seal the snap ring coupling position, prevent to pour into the colloid and leak from the junction. After the sealing, connect outside injecting glue equipment through injecting glue hole 102, can carry out the injecting glue to the leak source position and seal, the injecting glue in-process, injecting glue recess 103 plays the buffer region of leakage fluid and injects the forming die dual function of colloid, simultaneously, when carrying out the injecting glue from the injecting glue hole 102 of left snap ring 1 alone, the injecting glue hole 102 of right snap ring 4 can be filled as the effect of observing the hole, observe the injecting glue condition, if the injecting glue effect is not good, can again fill the injecting glue through the injecting glue hole 102 of right snap ring 4 from the right side, thereby ensure to inject the colloid and can be sealed the leak source position completely.

Example 2:

as shown in fig. 3 and 4, the straight pipe leak source sealing jig of the present embodiment is different from embodiment 1 in that the sealing jig further includes a glue injection valve 5 and a buffer pad 6.

The glue injection valve 5 comprises a valve body 501 and a valve core 502, a through hole 5013 which is through from left to right is formed in the valve body 501, a protruding block which is matched with the glue injection hole 102 is arranged at the right end of the valve body 501, in the embodiment, the protruding block is in threaded connection with the glue injection hole 102 so as to improve the sealing effect of the glue injection hole 102, an internal thread 5012 which is used for being connected with an external glue injection device is arranged at the left end of the valve body 501, a valve core hole 5014 which is perpendicular to the through hole 5013 is further formed in the valve body 501, the valve core 502 is used for opening and closing the through hole 5013, the valve core 502 is in threaded connection with the valve core hole 5014, a valve core through hole 5022 which is matched with the through hole 5013 is arranged at the position where the valve core 502 is inserted into the valve core hole 5014, and a switch identifier 5021 which is used for identifying the position of the valve core through hole 5022 is arranged at the end of the valve core 502.

The thickness of the buffer pad 6 is smaller than the height of the trapezoid of the section of the convex block of the sealing part 101, and the buffer pad 6 is arranged to control the thickness of the sealing part 101 inserted into the pipe wall by using the buffer pad 6 when the device is applied to the straight pipe 7 with a thin pipe wall, so that the situation that the sealing part 101 is embedded too deeply and the pipe wall is damaged in the clamping process of the device is prevented.

When the glue injection valve is used specifically, the glue injection valve 5 is fixed at the glue injection hole 102, then the clamping ring is fixed at the leaking point of the straight pipe 7, before glue injection is started, the through hole 5013 of the glue injection valve 5 on one side is closed by using the switch identifier 5021, glue injection operation is carried out on the other side, after glue injection is finished, the glue injection effect is observed from the side without glue injection, and if the leaking point still exists, glue injection can be carried out from two sides, so that the leaking point is ensured to be completely sealed.

Claims (8)

1. The utility model provides a straight tube leak source seals fixture, includes the snap ring that the symmetry set up, its characterized in that, the inner wall of snap ring is equipped with two arc archs along the axial interval of snap ring, the arc arch extends to the other end of snap ring by the one end of snap ring, be equipped with sealing (101) on the arc arch, sealing (101) are including following many arc seal teeth that the snap ring interval set up, two form injecting glue recess (103) between the arc arch, the outer wall of snap ring is equipped with injecting glue hole (102) with injecting glue recess (103) intercommunication.

2. The straight pipe leak source sealing fixture of claim 1, wherein said seal teeth have an isosceles trapezoid cross-section.

3. The straight pipe leak source sealing fixture according to claim 1, wherein said snap rings are provided with connecting members (104) for connection, said connecting members (104) being used for connecting two of said snap rings.

4. The straight pipe leak source sealing fixture according to claim 1, wherein a glue injection valve (5) is connected to the glue injection hole (102).

5. The straight pipe leak source sealing fixture as claimed in claim 4, wherein the glue injection valve (5) comprises a valve body (501) and a valve core (502), a through hole (5013) penetrating from left to right is formed in the valve body (501), a convex block (5011) connected with the glue injection hole (102) is arranged at the right end of the valve body (501), internal threads (5012) are formed at the left end of the valve body (501), and the valve core (502) is used for opening and closing the through hole (5013).

6. The straight pipe leak source sealing fixture according to claim 5, wherein the valve body (501) is provided with a valve core hole (5014) perpendicular to the through hole (5013), and the valve core (502) is in threaded connection with the valve core hole (5014).

7. The straight pipe leak source sealing jig according to claim 5, characterized in that the projection (5011) is screwed with the glue injection hole (102).

8. The straight pipe leak source sealing fixture as claimed in claim 1, wherein a gasket is fixed on said snap ring, and said gasket is disposed at the butt joint of two said snap rings.

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