CN219178816U - Plug pressing device - Google Patents

Abstract

The utility model relates to a plug pressurizing device which comprises a first integrated block, a first moving block and a pressurizing pump, wherein the first integrated block is used for at least partially extending into a pipeline and is provided with a sealing surface, and a liquid inlet channel is arranged on the first integrated block; the first moving block is provided with a first inclined plane, and the first integrated block is provided with a second inclined plane which is attached to the first inclined plane; the first integrated block is provided with a first state and a second state, in the first state, the liquid inlet channel is inserted into the opening, and the sealing surface seals the opening; in the second state, the liquid inlet channel is separated from the opening, and the first moving block is configured to move along the axial direction of the pipeline so as to drive the first integrated block to move along the radial direction of the pipeline, so that the first integrated block is switched between the first state and the second state; the pressurizing pump is connected to the liquid inlet channel and is used for injecting pressurized water into the liquid inlet channel in a first state so as to adjust the pressure in the liquid inlet channel and the opening.

Description

Plug pressing device

Technical Field

The utility model relates to the technical field of testing tightness of plugs, in particular to a plug pressing device.

Background

As shown in fig. 1, the conventional plug pressing device is used for detecting tightness of a plug 12 arranged at an outer end of an opening 11 formed in a pipeline 1 and extending along a radial direction of the pipeline 1. The plug pressing device comprises a plugging block 2, a pressing pump, a screw rod 3 and a limiting block 31, wherein a protrusion extending towards an opening 11 along the radial direction of a pipeline 1 is arranged on the plugging block 2, the protrusion stretches into the opening 11 and is in interference fit with the opening 11, so that one end of the opening 11, which is away from a plug 12, is plugged, the screw rod 3 is arranged on the plugging block 2, the limiting block 31 is in threaded connection with the screw rod 3 and can be abutted to the plugging block 2, so that the plugging block 2 can be limited in the radial direction of the pipeline 1, a channel 21 communicated with the opening 11 is arranged on the plugging block 2, the channel 21 is connected with the pressing pump, pressure water is injected into the channel 21 through the pressing pump, after the pressure water is kept for a certain time, the sealing performance of the plug 12 is poor, the plug 12 needs to be maintained or replaced, and the sealing performance of the plug 12 is good when no water flows out is proved. The existing plug pressing device stretches into the opening 11 through the bulge on the plugging block 2, so that one end of the opening 11 deviating from the plug 12 is sealed, linear sealing is adopted between the bulge and the inner wall of the opening 11, the sealing effect is poor, and the sealing performance of the plug 12 is affected. Moreover, the formation of a line seal between the projection and the inner wall of the opening 11 requires that the projection extend as vertically into the opening 11 as possible and that the mounting requirements are high. In addition, the installation and the disassembly of the existing plug pressing device are difficult and time-consuming.

Disclosure of Invention

Based on the above, it is necessary to provide a plug pressing device for solving the problem of the plug tightness test.

The utility model provides a device is suppressed to end cap for the pipeline is seted up along the leakproofness of the end cap that the opening outer end department that radially extends of pipeline set up, the device is suppressed to the end cap includes:

the first integrated block is used for at least partially extending into the pipeline, the first integrated block is provided with a sealing surface, and a liquid inlet channel is arranged on the first integrated block;

the first moving block is provided with a first inclined plane, and the first integrated block is provided with a second inclined plane which is attached to the first inclined plane;

the first integrated block is provided with a first state and a second state, in the first state, the liquid inlet channel is inserted into the opening, and the sealing surface seals the opening; in the second state, the liquid inlet channel is separated from the opening, and the first moving block is configured to move along the axial direction of the pipeline so as to drive the first integrated block to move along the radial direction of the pipeline, so that the first integrated block is switched between the first state and the second state;

the pressurizing pump is connected with the liquid inlet channel and is used for injecting pressurized water into the liquid inlet channel in the first state so as to adjust the pressure in the liquid inlet channel and the opening.

In one embodiment, a sealing gasket is arranged at one end of the first integrated block, which is away from the first moving block, and the sealing surface is formed at one side of the sealing gasket, which is away from the first integrated block.

In one embodiment, an accommodating groove is formed in one end, facing away from the first moving block, of the first integrated block, the sealing gasket is installed in the accommodating groove, and the groove wall of the accommodating groove is used for being abutted to the end wall of the pipeline.

In one embodiment, one of the first inclined surface and the second inclined surface is provided with a sliding table, the other is provided with a sliding groove, and the sliding groove extends along the movement direction of the first moving block.

In one embodiment, the device further comprises a second moving block, the second moving block and the first moving block are arranged at intervals along the moving direction of the first moving block, the second moving block is provided with a third inclined plane, the first integrated block is provided with a fourth inclined plane attached to the third inclined plane, and the second inclined plane and the fourth inclined plane are arranged in an included angle;

the second moving block and the first moving block are synchronously close to or far away from each other so as to drive the first integrated block to move along the radial direction.

In one embodiment, the device further comprises a screw rod, wherein a first thread and a second thread with opposite rotation directions are arranged on the screw rod, the screw rod penetrates through the first moving block and the second moving block, the screw rod is connected with the first moving block through the first thread and the second moving block through the second thread, and the screw rod is configured to rotate to drive the first moving block and the second moving block to move in opposite directions or move in opposite directions.

In one embodiment, the screw rod fixing device further comprises a hand wheel sleeved on the screw rod, the hand wheel is fixedly connected with the screw rod, and the hand wheel is configured to rotate to drive the screw rod to synchronously rotate.

In one embodiment, the screw rod further comprises a limit nut in threaded connection with the screw rod, the hand wheel is located between the first moving block and the limit nut, a limit boss is arranged on the screw rod and is abutted to the hand wheel, the limit boss is located at one end of the hand wheel, which is away from the limit nut, the limit nut is abutted to the hand wheel, and the limit boss and the limit nut are mutually matched to limit the hand wheel to move along the axis direction of the screw rod.

In one embodiment, the device further comprises a second integrated block which is arranged with the first integrated block at intervals along the moving direction of the first integrated block, the first moving block is located between the first integrated block and the second integrated block, the second integrated block is in sliding fit with the first moving block through an inclined plane, and the second integrated block is provided with an abutting surface for being attached to the inner pipe wall.

In one embodiment, the first ramp, the second ramp, the third ramp, and the fourth ramp are configured to:

when the first moving block and the second moving block are far away from each other, the first integrated block and the second integrated block are close to each other;

when the first moving block and the second moving block are close to each other, the first integrated block and the second integrated block are far away from each other.

The utility model has the beneficial effects that:

above-mentioned end cap is beaten pressure equipment and is put, and the end cap shutoff is in open-ended one end, stretches into the pipeline with first integrated circuit part to thereby make the sealed face of first integrated circuit block shutoff the one end that the opening deviates from the end cap, form the face seal between sealed face and the interior pipe wall of pipeline, improved open-ended sealed effect. The first moving block is provided with a first inclined plane, and the first integrated block is provided with a second inclined plane which is attached to the first inclined plane. The first integrated block is provided with a first state and a second state, and the first moving block slides along the axial direction of the pipeline and the second inclined plane, so that the first integrated block is driven to move along the radial direction of the pipeline, and the first integrated block is switched between the first state and the second state. The first moving block moves leftwards along the axial direction, so that the first integrated block is driven to move along the radial direction towards the direction close to the inner pipe wall of the pipeline, the liquid inlet channel stretches into the opening, the sealing surface of the first integrated block is attached to the inner pipe wall, and therefore one end of the opening, which is away from the plug, is sealed, and the first integrated block is in a first state; the first movable block moves rightwards along the axial direction, so that the first integrated block is driven to move along the radial direction away from the inner pipe wall of the pipeline, the sealing surface is away from the inner pipe wall, a gap is reserved between the sealing surface and the inner pipe wall, the liquid inlet channel extends out of the opening, and the first integrated block is in a second state. When in the first state, the pressurizing pump is connected to the liquid inlet channel and used for injecting pressurized water into the liquid inlet channel, so that the pressure in the liquid inlet channel and the pressure in the opening are regulated, and the tightness of the plug is detected. According to the plug pressing device provided by the utility model, the first movable block is driven to move along the radial direction by moving along the axial direction, so that the sealing surface of the first integrated block is attached to or away from the inner pipe wall, and the surface seal is formed between the sealing surface and the inner pipe wall, thereby enhancing the sealing effect and improving the detection precision. Compared with the existing plug pressing device, the sealing surface and the inner pipe wall of the plug pressing device form surface sealing, special protrusions do not need to be arranged to vertically extend into the opening, sealing effect is improved, and installation requirements are reduced. In addition, the plug pressing device is installed in a pipeline or detached from the pipeline, the installation or detachment steps are simple, and the working effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of a plug pressing device in the prior art;

fig. 2 is a schematic structural diagram of a plug pressing device according to an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a first view of a plug pressing device according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of FIG. 3 at A-A;

FIG. 5 is a cross-sectional view of FIG. 3 at B-B;

fig. 6 is a cross-sectional view of a second view of the plug pressing device according to the embodiment of the present utility model.

In fig. 1:

1. a pipeline; 11 openings; 12. a plug;

2. a block; 21. a channel;

3. a screw; 31. and a limiting block.

In fig. 2 to 6:

100. a pipeline; 110. an opening; 120. a plug;

200. a first integrated block; 210. a sealing gasket; 211. sealing surfaces; 220. a liquid inlet channel; 230. a second inclined surface; 240. a fourth inclined surface; 250. a receiving groove; 260. a quick-connect joint;

300. a first moving block; 310. a first inclined surface; 311. a sliding table;

400. a second moving block; 410. a third inclined surface;

500. a second integrated block;

600. a screw rod;

700. a hand wheel;

800. and (5) limiting the nut.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 2 and 3, the embodiment of the present utility model provides a plug pressing device for detecting tightness of a plug 120 provided on a pipeline 100 and disposed at an outer end of an opening 110 extending in a radial direction of the pipeline 100, where the plug pressing device includes a first integrated block 200, a first moving block 300, and a pressing pump, the first integrated block 200 is used for partially or completely extending into the pipeline 100, the first integrated block 200 has a sealing surface 211, and a liquid inlet channel 220 is disposed on the first integrated block 200; the first moving block 300 has a first inclined surface 310, and the first integrated block 200 has a second inclined surface 230 that is fitted with the first inclined surface 310; the first integrated block 200 has a first state in which the liquid inlet channel 220 is inserted into the opening 110 and the sealing surface 211 seals the opening 110; in the second state, the liquid inlet channel 220 is separated from the opening 110, and the first moving block 300 is configured to move along the axial direction of the pipeline 100 so as to drive the first integrated block 200 to move along the radial direction of the pipeline 100, so that the first integrated block 200 is switched between the first state and the second state; the pressurizing pump is connected to the liquid inlet channel 220, and is used for injecting pressurized water into the liquid inlet channel 220 in the first state so as to regulate the pressure in the liquid inlet channel 220 and the opening 110.

In the plug pressing device, the plug 120 is plugged at one end of the opening 110, and the first integrated block 200 is partially or completely inserted into the pipeline 100, so that the sealing surface 211 of the first integrated block 200 plugs one end of the opening 110, which is away from the plug 120, and a surface seal is formed between the sealing surface 211 and the inner pipe wall of the pipeline 100, thereby improving the sealing effect of the opening 110. The first moving block 300 has a first inclined surface 310, and the first integrated block 200 has a second inclined surface 230 that is fitted to the first inclined surface 310. The first manifold block 200 has a first state and a second state, and the first moving block 300 slides along the axial direction of the pipeline 100 and along the second inclined surface 230, thereby driving the first manifold block 200 to move in the radial direction of the pipeline 100, so that the first manifold block 200 is switched between the first state and the second state. The first moving block 300 moves axially to the left (left as shown in fig. 3), so as to drive the first integrated block 200 to move radially to a direction close to the inner pipe wall of the pipeline 100, so that the liquid inlet channel 220 extends into the opening 110, and the sealing surface 211 of the first integrated block 200 is attached to the inner pipe wall, so that one end of the opening 110, which is away from the plug 120, is sealed, and at this time, the first integrated block 200 is in the first state; the first moving block 300 moves to the right in the axial direction (right direction as shown in fig. 3), so as to drive the first integrated block 200 to move in a direction away from the inner pipe wall of the pipeline 100 in the radial direction, the sealing surface 211 is away from the inner pipe wall, a gap is formed between the sealing surface 211 and the inner pipe wall, and the liquid inlet channel 220 exits the opening 110, so that the first integrated block 200 is in the second state. In the first state, a pressurizing pump is connected to the liquid inlet channel 220, and the pressurizing pump is used for injecting pressurized water into the liquid inlet channel 220, so that the pressure in the liquid inlet channel 220 and the opening 110 is regulated, and the tightness of the plug 120 is detected. According to the plug pressing device provided by the utility model, the first movable block 300 is moved along the axial direction to drive the first integrated block 200 to move along the radial direction, so that the sealing surface 211 of the first integrated block 200 is attached to the inner pipe wall or is far away from the inner pipe wall, and the sealing surface 211 and the inner pipe wall form surface sealing, thereby enhancing the sealing effect and improving the detection precision. Compared with the existing plug pressing device, the sealing surface 211 and the inner pipe wall of the plug pressing device form surface sealing, special protrusions do not need to be arranged to vertically extend into the opening, sealing effect is improved, and installation requirements are reduced. In addition, the plug pressing device is installed in the pipeline 100 or detached from the pipeline 100, the installation or detachment steps are simple, and the working effect is improved.

In some embodiments, as shown in fig. 2 and 3, an end of the first integrated block 200 facing away from the first moving block 300 is provided with a gasket 210, and a side of the gasket 210 facing away from the first integrated block 200 forms a sealing surface 211. By arranging the sealing gasket 210 on the side of the first integrated block 200 away from the first integrated block 200, the sealing surface 211 is formed on the side of the sealing gasket 210 away from the first integrated block 200, so that the sealing effect is enhanced, and the detection precision is improved. Specifically, the gasket 210 is made of a rubber material.

Specifically, the sealing surface 211 is an arcuate surface. The sealing surface 211 is an arc surface, so that the sealing surface is convenient to be attached to the inner pipe wall of the pipeline 100, and the sealing effect is improved.

In some embodiments, the sealing gasket 210 may not be provided, and the side wall of the first integrated block 200 facing away from the first moving block 300 may directly abut against the inner pipe wall of the pipeline 100, so that the sealing effect may also be achieved.

In some embodiments, as shown in fig. 2 and 3, an end of the first integrated block 200 facing away from the first moving block 300 is provided with a receiving groove 250, and the gasket 210 is mounted in the receiving groove 250, and a groove wall of the receiving groove 250 is used to abut against an end wall of the pipeline 100. By providing the accommodating groove 250 on the first integrated block 200, the sealing gasket 210 is convenient to install, and the groove wall of the accommodating groove 250 can be abutted against the end wall of the pipeline 100, so that the first integrated block 200 can move along the axial direction to play a limiting role.

Specifically, as shown in fig. 2 and 3, the receiving groove 250 has an L shape. The gasket 210 is disposed on the bottom wall of the accommodation groove 250, and the side wall of the accommodation groove 250 abuts against the end wall of the pipe 100, thereby restricting the movement of the first manifold block 200 in the axial direction.

As shown in fig. 2 and 6, one of the first and second inclined surfaces 310 and 230 is provided with a sliding table 311, the other is provided with a sliding groove, and the sliding groove extends in the movement direction of the first moving block 300. By arranging the sliding groove and the sliding table 311 which is in sliding fit with the sliding groove, and extending the sliding groove along the movement direction of the first moving block 300, the movement direction of the first moving block 300 is limited, and the situations that the movement track of the first moving block 300 is offset, and the first moving block 300 cannot drive the first integrated block 200 to move along the radial direction are prevented. It should be noted that, the movement direction of the first moving block 300, i.e., the axial direction of the pipeline 100, the sliding groove extends along the movement direction of the first moving block 300, i.e., the sliding groove extends along the axial direction of the pipeline 100. Specifically, a sliding table 311 is provided on the first inclined surface 310, and a sliding groove slidingly engaged with the sliding table 311 is provided on the second inclined surface 230.

In some embodiments, a sliding slot may be provided on the first inclined surface 310, and a sliding table 311 may be provided on the second inclined surface 230.

In some embodiments, as shown in fig. 2 and 3, the plug pressing device further includes a second moving block 400, where the second moving block 400 and the first moving block 300 are disposed at intervals along the moving direction of the first moving block 300, the second moving block 400 has a third inclined surface 410, the first integrated block 200 has a fourth inclined surface 240 that is attached to the third inclined surface 410, and the second inclined surface 230 and the fourth inclined surface 240 are disposed at an included angle; the second moving block 400 and the first moving block 300 are moved closer to or farther from each other in synchronization to drive the first integrated block 200 to move in the radial direction. The first moving block 300 and the second moving block 400 are spaced apart along the axial direction of the pipeline 100, and the first moving block 300 and the second moving block 400 can be synchronously close to each other to jointly push the first integrated block 200 to move along the radial direction towards the direction approaching the opening 110. The first moving block 300 and the second moving block 400 cooperate to enhance the motion smoothness of the first integrated block 200.

Specifically, as shown in fig. 2, the included angle between the second inclined surface 230 and the fourth inclined surface 240 of the first integrated block 200 is an obtuse angle, and the included angle between the first inclined surface 310 of the first moving block 300 and the third inclined surface 410 of the second moving block 400 is also an obtuse angle; when the first moving block 300 and the second moving block 400 are moved away from or close to each other, the second inclined surface 230 slides along the first inclined surface 310, and the fourth inclined surface 240 slides along the third inclined surface 410, so that the first integrated block 200 moves in the radial direction. When the first and second moving blocks 300 and 400 are moved away from each other, the first integrated block 200 moves in a direction radially away from the opening 110 (downward movement as shown in fig. 2), and when the first and second moving blocks 300 and 400 are moved toward each other, the first integrated block 200 moves in a direction radially toward the opening 110 (upward movement as shown in fig. 2).

Preferably, as shown in fig. 2 and 3, one of the third inclined surface 410 and the fourth inclined surface 240 is provided with a sliding table 311, and the other is provided with a sliding groove, and the sliding groove extends in the movement direction of the second moving block 400.

Preferably, as shown in fig. 2 and 3, a quick connector 260 is provided on the first manifold block 200, and the quick connector 260 is used to connect the liquid inlet passage 220 and the pressurizing pump.

In some embodiments, as shown in fig. 2 and 3, the plug pressing device further includes a screw rod 600, wherein the screw rod 600 is provided with a first thread and a second thread having opposite rotation directions, the screw rod 600 passes through the first moving block 300 and the second moving block 400, and the screw rod 600 is connected to the first moving block 300 through the first thread and is connected to the second moving block 400 through the second thread, and the screw rod 600 is configured to rotate to drive the first moving block 300 and the second moving block 400 to move toward each other or to move away from each other. The first moving block 300 and the second moving block 400 are sleeved on the screw rod 600 by arranging the first screw thread and the second screw thread with opposite screwing directions on the screw rod 600, so that the first moving block 300 and the second moving block 400 are driven to move in opposite directions or move in opposite directions by the rotation of the screw rod 600.

Specifically, as shown in fig. 3, the axial direction of the screw rod 600 is parallel to the axial direction of the pipeline 100, a second thread and a first thread are sequentially arranged on the screw rod 600 from left to right (from left to right as shown in fig. 3), the second thread is a right-handed thread, the first thread is a left-handed thread, the screw rod 600 sequentially passes through the first moving block 300 and the second moving block 400, and a worker rotates the screw rod 600, so as to drive the first moving block 300 and the second moving block 400 to move in opposite directions or move in opposite directions.

In some embodiments, as shown in fig. 2 and 3, the plug pressing device further includes a hand wheel 700 sleeved on the screw rod 600, the hand wheel 700 is fixedly connected with the screw rod 600, and the hand wheel 700 is configured to rotate to drive the screw rod 600 to rotate synchronously. A hand wheel 700 is fixedly arranged on the screw rod 600, and the screw rod 600 is driven to rotate by rotating the hand wheel 700.

Specifically, as shown in fig. 3 and 4, the screw rod 600 is provided with an installation part along the axial direction thereof, the installation part is in a cuboid structure, a square hole is formed in the hand wheel 700, the hand wheel 700 is sleeved on the installation part, and the hand wheel 700 and the screw rod 600 are matched through the square hole, so that torque can be conveniently transmitted.

In some embodiments, as shown in fig. 2, 3 and 5, the plug pressing device further includes a limit nut 800 screwed to the screw rod 600, the hand wheel 700 is located between the first moving block 300 and the limit nut 800, a limit boss abutting against the hand wheel 700 is disposed on the screw rod 600, and the limit boss is located at one end of the hand wheel 700 away from the limit nut 800, the limit nut 800 abuts against the hand wheel 700, and the limit boss and the limit nut 800 cooperate with each other to limit the movement of the hand wheel 700 along the axial direction of the screw rod 600. Through set up stop nut 800 in the hand wheel 700 one side that deviates from first movable block 300, stop nut 800 threaded connection is in lead screw 600, and can the butt in the lateral wall of hand wheel 700 to restriction hand wheel 700 removes along the axial to the direction that deviates from first movable block 300, prevents that hand wheel 700 breaks away from lead screw 600. By arranging the limit boss on the screw rod 600, and the limit boss is located on one side of the hand wheel 700 away from the limit nut 800, the limit boss is abutted to the hand wheel 700, so that the hand wheel 700 is limited to move in a direction close to the first moving block 300.

Specifically, the stop nut 800 is detachably connected to the handwheel 700. In actual operation, the limit nut 800 may be removed from the hand wheel 700, and then the hand wheel 700 may be removed from the screw 600.

In some embodiments, as shown in fig. 2 and 6, the plug pressing device further includes a second integrated block 500 spaced from the first integrated block 200 along the moving direction of the first integrated block 200, the first moving block 300 is located between the first integrated block 200 and the second integrated block 500, the second integrated block 500 is slidingly engaged with the first moving block 300 through an inclined surface, and the second integrated block 500 has an abutment surface for being attached to the inner pipe wall. By providing the second integrated block 500, the first integrated block 200 and the second integrated block 500 are disposed at intervals along the radial direction, and the second integrated block 500 is also in sliding fit with the first moving block 300, so that when the first moving block 300 moves along the axial direction, the first integrated block 200 and the second integrated block 500 are driven to move along the radial direction towards the inner pipe wall at the same time, or move along the radial direction away from the inner pipe wall at the same time. When the first integrated block 200 is in the first state, the sealing surface 211 of the first integrated block 200 is attached to the portion of the inner pipe wall provided with the opening 110, the abutting surface of the second integrated block 500 is attached to the portion of the inner pipe wall opposite to the opening 110, and the second integrated block 500 provides an upward supporting force (as shown in fig. 2, above) to the first moving block 300 and the first integrated block 200, so as to enhance the sealing effect of the sealing surface 211.

Preferably, in some embodiments, the second integrated block 500 is also provided with an L-shaped receiving groove, a side groove wall of the receiving groove abuts against an end wall of the pipeline 100, and a sealing gasket is disposed in the receiving groove, and the sealing gasket has a sealing surface capable of being attached to an inner pipe wall of the pipeline 100. I.e., the structure of the second integrated block 500 is the same as that of the first integrated block 200.

Preferably, as shown in fig. 2 and 6, one of the second integrated block 500 and the first moving block 300 is provided with a limit sliding groove, the other is provided with a limit sliding rail, the limit sliding groove extends along the axial direction, and the limit sliding groove and the limit sliding rail are mutually matched to form a linear guide rail, so as to play a role in guiding and limiting.

Preferably, as shown in fig. 2 and 6, the second integrated block 500 is slidably engaged with the second moving block 400 through a slope, and when the first moving block 300 and the second moving block 400 are close to or far from each other, the second moving block 400 slides along the slope of the second integrated block 500.

Preferably, as shown in fig. 2 and 6, one of the second integrated block 500 and the second moving block 400 is provided with a limit sliding groove, the other is provided with a limit sliding rail, the limit sliding groove extends along the axial direction, and the limit sliding groove and the limit sliding rail are mutually matched to form a linear guide rail, so as to play a role in guiding and limiting.

Specifically, as shown in fig. 2 and 3, the first inclined surface 310, the second inclined surface 230, the third inclined surface 410, and the fourth inclined surface 240 are configured to: when the first and second moving blocks 300 and 400 are moved away from each other, the first and second integrated blocks 200 and 500 are moved close to each other; when the first and second moving blocks 300 and 400 are close to each other, the first and second integrated blocks 200 and 500 are far away from each other. The included angle between the second inclined plane 230 and the fourth inclined plane 240 on the side of the first integrated block 200 facing away from the inner pipe wall is an obtuse angle, when the screw rod 600 rotates to drive the first moving block 300 and the second moving block 400 away from each other, the first integrated block 200 is in sliding fit with the first moving block 300 and the second moving block 400, and the second integrated block 500 is in sliding fit with the first moving block 300 and the second moving block 400, so that the first integrated block 200 and the second integrated block 500 move in a direction facing away from the inner pipe wall in a radial direction, and the first integrated block 200 and the second integrated block 500 are distributed at intervals in a radial direction, so that the first integrated block 200 and the second integrated block 500 are close to each other. The screw 600 rotates to drive the first and second moving blocks 300 and 400 to approach each other so that the first and second integrated blocks 200 and 500 each move in a direction to approach the inner wall of the pipe in a radial direction, and the first and second integrated blocks 200 and 500 are spaced apart in the radial direction, so that the first and second integrated blocks 200 and 500 are spaced apart from each other at this time.

It will be appreciated that when the first moving block 300 and the second moving block 400 move relatively, thereby driving the first integrated block 200 and the second integrated block 500 toward and away from each other, the included angle between the second inclined surface 230 and the fourth inclined surface 240 on the side of the first integrated block 200 facing away from the inner pipe wall, and the included angle between the two inclined surfaces on the side of the second integrated block 500 facing away from the inner pipe wall are related.

For example, in some embodiments, when the included angle between the second inclined plane 230 and the fourth inclined plane 240 of the first integrated block 200 is acute, and the included angle between the two inclined planes on the side of the second integrated block 500 facing away from the inner pipe wall is also acute, the first moving block 300 and the second moving block 400 approach each other to drive the first integrated block 200 and the second integrated block 500 to approach each other; when the first moving block 300 and the second moving block 400 are away from each other, the first integrated block 200 and the second integrated block 500 are driven away from each other.

It should be noted that, the axial direction above may be understood as the axial direction of the pipe 100 or the axial direction of the screw 600, and the radial direction above may be understood as the radial direction of the pipe 100 or the direction perpendicular to the axial direction of the screw 600.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A plug crimping device for detecting tightness of a plug (120) provided on a pipeline (100) and provided at an outer end of an opening (110) extending in a radial direction of the pipeline (100), the plug crimping device comprising:

the first integrated block (200) is used for extending into the pipeline (100) at least partially, the first integrated block (200) is provided with a sealing surface (211), and a liquid inlet channel (220) is arranged on the first integrated block (200);

a first moving block (300) having a first inclined surface (310), the first integrated block (200) having a second inclined surface (230) that is fitted to the first inclined surface (310);

the first integrated block (200) has a first state in which the liquid inlet channel (220) is inserted into the opening (110), and a second state in which the sealing surface (211) seals the opening (110); in the second state, the liquid inlet channel (220) is separated from the opening (110), and the first moving block (300) is configured to move along the axial direction of the pipeline (100) so as to drive the first integrated block (200) to move along the radial direction of the pipeline (100), so that the first integrated block (200) is switched between the first state and the second state;

and the pressurizing pump is connected with the liquid inlet channel (220) and is used for injecting pressurized water into the liquid inlet channel (220) in the first state so as to adjust the pressure in the liquid inlet channel (220) and the opening (110).

2. The plug crimping device of claim 1, wherein a sealing gasket (210) is provided at an end of the first integrated block (200) facing away from the first moving block (300), and wherein the sealing surface (211) is formed on a side of the sealing gasket (210) facing away from the first integrated block (200).

3. The plug crimping device of claim 2, wherein an end of the first integrated block (200) facing away from the first moving block (300) is provided with a receiving groove (250), the gasket (210) is mounted in the receiving groove (250), and a groove wall of the receiving groove (250) is used for abutting against an end wall of the pipeline (100).

4. The plug pressing device according to claim 1, wherein one of the first inclined surface (310) and the second inclined surface (230) is provided with a sliding table (311), the other is provided with a sliding groove, and the sliding groove extends along the movement direction of the first moving block (300).

5. The plug pressing device according to claim 1, further comprising a second moving block (400), wherein the second moving block (400) and the first moving block (300) are arranged at intervals along the moving direction of the first moving block (300), the second moving block (400) has a third inclined surface (410), the first integrated block (200) has a fourth inclined surface (240) attached to the third inclined surface (410), and the second inclined surface (230) and the fourth inclined surface (240) are arranged at an included angle;

the second moving block (400) and the first moving block (300) are synchronously close to or far away from each other so as to drive the first integrated block (200) to move along the radial direction.

6. The plug crimping device of claim 5, further comprising a screw (600), wherein the screw (600) is provided with first and second threads having opposite rotational directions, the screw (600) passes through the first and second moving blocks (300, 400), and the screw (600) is connected to the first moving block (300) by the first thread and to the second moving block (400) by the second thread, the screw (600) being configured to rotate to drive the first and second moving blocks (300, 400) to move toward or away from each other.

7. The plug crimping device of claim 6, further comprising a hand wheel (700) sleeved on the screw (600), the hand wheel (700) being fixedly connected to the screw (600), the hand wheel (700) being configured to rotate to drive the screw (600) to rotate synchronously.

8. The plug crimping device of claim 7, further comprising a stop nut (800) threadably coupled to the screw (600), wherein the hand wheel (700) is disposed between the first moving block (300) and the stop nut (800), wherein the screw (600) is provided with a stop boss that abuts against the hand wheel (700), and wherein the stop boss is disposed at an end of the hand wheel (700) that faces away from the stop nut (800), wherein the stop nut (800) abuts against the hand wheel (700), and wherein the stop boss and the stop nut (800) cooperate with each other to limit movement of the hand wheel (700) along an axial direction of the screw (600).

9. The plug crimping device of claim 5, further comprising a second integrated block (500) disposed at an interval from the first integrated block (200) along a moving direction of the first integrated block (200), the first moving block (300) being located between the first integrated block (200) and the second integrated block (500), the second integrated block (500) being in sliding engagement with the first moving block (300) by an inclined surface, the second integrated block (500) having an abutment surface for abutment against an inner pipe wall of the pipeline (100).

10. The plug crimping device of claim 9, wherein the first ramp (310), the second ramp (230), the third ramp (410), and the fourth ramp (240) are configured to:

when the first moving block (300) and the second moving block (400) are away from each other, the first integrated block (200) and the second integrated block (500) are close to each other;

when the first moving block (300) and the second moving block (400) are close to each other, the first integrated block (200) and the second integrated block (500) are far away from each other.

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