Heat supply pipeline orifice plugging device

Abstract

The utility model discloses a heat supply pipeline orifice plugging device, which relates to the technical field of pipeline plugging, and comprises a pipeline body, the front and rear parts of the right side of a fixing plate are movably connected with a centering fixing assembly, and the inner wall of a mounting cylinder is movably connected with a multi-point plugging assembly. According to the heat supply pipeline orifice plugging device, the mounting cylinder can be fixed to the axis of the inner cavity of the pipeline body through the centering fixing assembly, the moving distances of the two clamping plates moving relatively are consistent, the fixing plate can be fixed to the outer wall of the pipeline through the two clamping plates, the axis of the mounting cylinder can coincide with the axis of the pipeline, and the sealing effect is good. And the subsequent plugging work is utilized, so that the practicability is high. Through the multi-point plugging assembly, four arc-shaped plates which move at the same time can be used for opening a rubber inflatable cushion, and the rubber inflatable cushion can be opened to plug a pipeline after being subjected to extrusion force in four directions. In the process, the rubber inflatable cushion is evenly and comprehensively stressed, and the sealing performance of pipeline plugging can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline plugging technical field, especially a kind of heat supply pipeline pipe orifice plugging device. BACKGROUND

[0002] In the construction process of heat supply pipeline, the end of the pipeline needs to be plugged when the process is intermittent or the construction is suspended due to weather, to prevent water or debris from entering the pipeline and to prevent the pipeline insulation layer from being damp or soaked.

[0003] Chinese patent document CN221743489U discloses a heat supply pipeline pipe orifice plugging device. The device uses a sealing rubber ring between the heat supply pipeline body and the circular truncated cone to plug the port of the heat supply pipeline body, preventing water, silt, and debris from entering the interior of the heat supply pipeline body, keeping the interior of the heat supply pipeline body clean, and improving the cleanliness of the steam and water in the heat supply pipeline body to prevent damage to the normal operation of the heating system caused by debris in the heat supply pipeline body. When in use, the rotating adjustment screw drives the two clamping ring plates to extrude the sealing rubber ring, and then the sealing rubber ring seals the circular truncated cone and the heat supply pipeline body to complete the plugging.

[0004] The existing technology has the following problems:

[0005] In the above device, although the two clamping ring plates are annular, they are only controlled by two moving plates, so the stress points of the sealing rubber ring are actually only two, and the sealing performance is not good enough. At the same time, the adjustment screw in the above device is also prone to loosen due to external factors. In addition, in the above device, the entire structure is fixed on the outer wall of the pipeline by two locking screws, but the two locking screws are manually rotated separately, which cannot ensure that the circular truncated cone is accurately located at the center of the pipeline, which may affect the subsequent plugging work and is not convenient enough. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of heat supply pipeline pipe orifice plugging device to solve the problems raised in the above background technology.

[0007] To solve the above technical problems, the utility model employs the following technical solutions:

[0008] A heat supply pipeline pipe orifice plugging device includes a pipeline body. The outer wall of the pipeline body is movably connected with a fixed plate on the right side. The right side of the fixed plate is movably connected with a centering fixing assembly. The left side edge of the fixed plate is fixedly installed with a mounting cylinder. The inner wall of the mounting cylinder is movably connected with a multi-point plugging assembly.

[0009] The centering fixing assembly comprises a reverse double-threaded rod one, the outer wall of the reverse double-threaded rod one is rotationally connected with the right side rear part of the fixing plate, the upper end of the reverse double-threaded rod one is fixedly installed with a rotating block, the outer wall of the reverse double-threaded rod one is threadedly connected with a moving plate, the two moving plates are fixedly installed with L-shaped clamping plates at the mutually faraway sides of the middle parts, the right side upper and lower parts of the fixing plate are movably provided with moving grooves matched with the two clamping plates, and the left parts of the two clamping plates are in abutment with the upper and lower positions of the right part of the outer wall of the pipeline body.

[0010] The multi-point plugging assembly comprises a reverse double-threaded rod two, the left end of the reverse double-threaded rod two is rotationally connected with the middle position of the left part of the inner wall of the mounting cylinder, the right end of the reverse double-threaded rod two penetrates through the right part of the mounting cylinder and is fixedly installed with a rotating disc, the front part of the rotating disc is movably connected with a clamping mechanism, the outer wall left and right parts of the reverse double-threaded rod two are threadedly connected with adjusting plates, the outer wall middle part of the mounting cylinder is provided with four rectangular grooves arranged in a ring shape, the inner walls of the four rectangular grooves are slidably connected with clamping plates, the four sides of the two adjusting plates are rotationally connected with rotating plates, the ends of the eight adjacent rotating plates far away from the two adjusting plates are rotationally connected with the left and right parts of the sides of the four clamping plates close to the mounting cylinder axis, the sides of the four clamping plates far away from the mounting cylinder axis are fixedly installed with arc-shaped plates, the sides of the four arc-shaped plates far away from the mounting cylinder axis are fixedly installed with rubber inflatable pads, and the outer wall of the rubber inflatable pad is in abutment with the right part of the inner wall of the pipeline body.

[0011] Preferably, the right side front part of the fixing plate is fixedly installed with a guide rod, and the inner walls of the front parts of the two moving plates are slidably connected with the outer side upper and lower parts of the guide rod.

[0012] Preferably, the left parts of the two clamping plates are provided with anti-skid lines.

[0013] Preferably, the front and rear parts of the inner wall of the mounting cylinder are fixedly installed with guide columns, and the inner walls of the front and rear parts of the two adjusting plates are slidably connected with the outer wall left and right parts of the two guide columns.

[0014] Preferably, the clamping mechanism comprises a fixed frame, the left side of the fixed frame is fixedly installed with the right side front part of the mounting cylinder, the middle parts of the upper and lower ends of the fixed frame are provided with sliding grooves, the inner walls of the two sliding grooves are slidably connected with sliding blocks, the right side middle part of the sliding block is fixedly installed with a blocking rod, the right side front side of the rotating disc is provided with a plurality of arc-shaped grooves arranged in a ring shape, and the outer wall right part of the blocking rod is in abutment with the inner walls of the plurality of arc-shaped grooves.

[0015] Preferably, the front side of the sliding block is fixedly installed with a spring, and the front end of the spring is fixedly connected with the inner wall front part of the fixed frame.

[0016] Preferably, a circular groove is formed in the middle of the right side of the fixed plate, and the size of the circular groove is much larger than that of the rotating disc.

[0017] Due to the adoption of the above technical scheme, the present application has the following technical progress compared with the prior art:

[0018] 1. The heat supply pipeline nozzle plugging device has the following advantages: the reverse double-thread rod, the rotating block, the moving plate, the clamping plate and the guide rod are matched to fix the mounting cylinder at the axis of the inner cavity of the pipeline body, the two oppositely moving clamping plates have the same moving distance, and the fixed plate can be fixed to the outer wall of the pipeline and the axis of the mounting cylinder can coincide with that of the pipeline.

[0019] 2. The heat supply pipeline nozzle plugging device has the following advantages: the reverse double-thread rod, the rotating disc, the adjusting plate, the clamping plate, the rotating plate, the arc-shaped plate, the rubber inflatable pad and the clamping mechanism are matched to use the four simultaneously moving arc-shaped plates to support the rubber inflatable pad, and the rubber inflatable pad is opened after being pressed in four directions to seal the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole front view structural schematic diagram of the present application.

[0021] Figure 2 It is a fixed plate right part structural schematic diagram of the present application.

[0022] Figure 3 It is a mounting cylinder cross-sectional exploded structural schematic diagram of the present application.

[0023] Figure 4 It is a center fixing assembly structural schematic diagram of the present application.

[0024] Figure 5 It is a multi-point plugging assembly structural schematic diagram (I) of the present application.

[0025] Figure 6 It is a multi-point plugging assembly structural schematic diagram (II) of the present application.

[0026] Figure 7 It is a clamping mechanism structural schematic diagram of the present application.

[0027] In the figure: 1, pipeline body; 2, centering fixing assembly; 3, multi-point plugging assembly; 11, fixed plate; 12, mounting cylinder; 21, reverse double-threaded rod one; 22, rotating block; 23, moving plate; 24, clamping plate; 25, guide rod; 31, reverse double-threaded rod two; 32, rotating disc; 33, adjusting plate; 34, clamping plate; 35, rotating plate; 36, arc plate; 37, rubber inflatable pad; 38, guide column; 39, fixed frame; 310, sliding block; 311, stop rod; 312, spring. DETAILED DESCRIPTION

[0028] To make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0029] As shown in Figures 1-7 A heat supply pipeline nozzle plugging device, comprising a pipeline body 1, a fixed plate 11 movably connected to the right part of the outer wall of the pipeline body 1, a centering fixing assembly 2 movably connected to the right side of the front and back of the fixed plate 11, a mounting cylinder 12 fixedly installed at the left side edge of the fixed plate 11, and a multi-point plugging assembly 3 movably connected to the inner wall of the mounting cylinder 12.

[0030] The centering fixing assembly 2 comprises a reverse double-threaded rod one 21, the upper and lower parts of the outer wall of the reverse double-threaded rod one 21 being rotatably connected to the right side of the back of the fixed plate 11, a rotating block 22 fixedly installed at the upper end of the reverse double-threaded rod one 21, moving plates 23 threadedly connected to the upper and lower parts of the outer wall of the reverse double-threaded rod one 21, L-shaped clamping plates 24 fixedly installed at the mutually distant sides of the middle parts of the two moving plates 23, moving grooves for the two clamping plates 24 being formed in the right side of the upper and lower parts of the fixed plate 11, and the left parts of the opposite sides of the two clamping plates 24 being in abutment with the upper and lower positions of the right part of the outer wall of the pipeline body 1.

[0031] The multi-point plugging assembly 3 comprises a reverse double-threaded rod two 31, the left end of the reverse double-threaded rod two 31 being rotatably connected to the middle part of the left part of the inner wall of the mounting cylinder 12, a rotating disc 32 fixedly installed at the right end of the reverse double-threaded rod two 31 and penetrating through the right part of the mounting cylinder 12, a clamping mechanism movably connected to the front part of the rotating disc 32, adjusting plates 33 threadedly connected to the left and right parts of the outer wall of the reverse double-threaded rod two 31, four rectangular grooves in the form of a ring being formed in the middle part of the outer wall of the mounting cylinder 12, clamping plates 34 slidably connected to the inner walls of the four rectangular grooves, rotating plates 35 rotatably connected to the four sides of the two adjusting plates 33, eight adjacent rotating plates 35 rotatably connected to the left and right parts of the side of the four clamping plates 34 close to the side of the axis of the mounting cylinder 12 away from the two adjusting plates 33, arc plates 36 fixedly installed at the side of the four clamping plates 34 away from the axis of the mounting cylinder 12, rubber inflatable pads 37 fixedly installed at the side of the four arc plates 36 away from the axis of the mounting cylinder 12, and the outer wall of the rubber inflatable pads 37 being in abutment with the right part of the inner wall of the pipeline body 1.

[0032] The fixing assembly 2 can fix the mounting cylinder 12 at the axis of the inner cavity of the pipeline body 1, the two opposite moving clamping plates 24 move at the same distance, and the two can not only fix the fixing plate 11 on the outer wall of the pipeline, but also make the mounting cylinder 12 coincide with the axis of the pipeline, and the utility is strong by using the subsequent plugging work. The multi-point plugging assembly 3 can use four simultaneously moving arc-shaped plates 36 to expand the rubber inflatable pad 37, and the rubber inflatable pad 37 will be expanded after being pressed in four directions. In this process, the rubber inflatable pad 37 is uniformly and comprehensively stressed, which can ensure the sealing of the pipeline plugging.

[0033] As shown in Figure 4 , the right side of the front part of the fixing plate 11 is fixedly installed with a guide rod 25, and the inner walls of the front parts of the two moving plates 23 are slidably connected with the outer sides of the upper and lower parts of the guide rod 25.

[0034] The guide rod 25 is used for guiding the two moving plates 23.

[0035] As shown in Figure 2 and Figure 3 , the left parts of the opposite sides of the two clamping plates 24 are provided with anti-skid lines.

[0036] The anti-skid lines improve the stability of the fixing of the two clamping plates 24.

[0037] As shown in Figure 6 , the inner walls of the front and rear parts of the mounting cylinder 12 are fixedly installed with guide columns 38, and the inner walls of the front and rear parts of the two adjusting plates 33 are slidably connected with the outer walls of the left and right parts of the two guide columns 38.

[0038] The guide columns 38 are used for guiding the two adjusting plates 33.

[0039] As shown in Figure 7 , the clamping mechanism comprises a fixed frame 39, the left side of the fixed frame 39 is fixedly installed with the right side of the front part of the mounting cylinder 12, the middle parts of the upper and lower ends of the fixed frame 39 are provided with sliding grooves, the inner walls of the two sliding grooves are slidably connected with sliding blocks 310, the right middle parts of the sliding blocks 310 are fixedly installed with stop rods 311, the right side of the front side of the rotating disc 32 is provided with a plurality of arc-shaped grooves which are annularly distributed, and the outer wall right parts of the stop rods 311 are in abutment with the inner walls of the plurality of arc-shaped grooves.

[0040] Moving the stop rod 311 forward can rotate the rotating disc 32, when the rotating disc 32 is rotated to the appropriate number of turns, the stop rod 311 is loosened, the elastic force of the spring 312 will drive the sliding block 310 and the stop rod 311 to reset, so that the stop rod 311 returns to the position of any one of the arc-shaped grooves, so as to clamp the rotating disc 32, and avoid the influence of external force on the reverse double screw rod 231.

[0041] As shown in Figure 7As shown, a spring 312 is fixedly installed on the front side of the slider 310, and the front end of the spring 312 is fixedly connected to the front part of the inner wall of the fixed frame 39.

[0042] Spring 312 has a restoring function for stop lever 311.

[0043] like Figure 3 As shown, a circular groove is provided through the middle of the right side of the fixing plate 11, and the size of the circular groove is much larger than the size of the turntable 32.

[0044] The working principle of this utility model is as follows: In use, the entire installation cylinder 12 is first inserted into the right side of the inner cavity of the pipe body 1, while the fixing plate 11 is located on the outside of the pipe. Supporting the entire device, the rotating block 22 is rotated, which drives the reverse double threaded rod 21 to rotate. The two moving plates 23 move closer to each other on the outside of the guide rod 25, so that the two clamping plates 24 apply a compressive force to the upper and lower positions of the left side of the outer wall of the pipe. These two compressive forces fix the entire device to the outer wall of the pipe.

[0045] Then, the stop lever 311 is moved forward, sliding forward and away from the turntable 32 via the slider 310. The turntable 32 is rotated, causing the reverse double-threaded rod 31 to rotate, bringing the two adjusting plates 33 closer together. The two adjusting plates 33, through the corresponding rotating plates 35, push the four clamping plates 34 away from the axis of the mounting cylinder 12, thus moving the four arc-shaped plates 36 away from each other. The rubber inflatable pad 37 expands under the pressure of the four arc-shaped plates 36, allowing its outer wall to fit tightly against the inner wall of the pipe, thereby sealing the pipe. Finally, the stop lever 311 is released, and the spring force of the spring 312 causes the slider 310 and the stop lever 311 to reset, returning the stop lever 311 to the position of any one of the arc-shaped grooves, thus locking the turntable 32 and preventing external forces from affecting the reverse double-threaded rod 31, improving the sealing performance of the pipe seal.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe end sealing device for heating pipelines, comprising a pipeline body (1), characterized in that: A fixing plate (11) is movably connected to the right side of the outer wall of the pipe body (1). A centering and fixing component (2) is movably connected to the front and rear sides of the right side of the fixing plate (11). An installation cylinder (12) is fixedly installed at the left edge of the fixing plate (11). A multi-point sealing component (3) is movably connected to the inner wall of the installation cylinder (12). The centering and fixing assembly (2) includes a reverse double threaded rod (21). The upper and lower parts of the outer wall of the reverse double threaded rod (21) are rotatably connected to the rear right side of the fixing plate (11). A rotating block (22) is fixedly installed at the upper end of the reverse double threaded rod (21). The upper and lower parts of the outer wall of the reverse double threaded rod (21) are threadedly connected to moving plates (23). An L-shaped clamping plate (24) is fixedly installed in the middle of the two moving plates (23) on the side away from each other. The upper and lower parts of the right side of the fixing plate (11) are opened through to form moving grooves with matching clamping plates (24). The left side of the two clamping plates (24) on opposite sides abuts against the upper and lower positions of the right side of the outer wall of the pipe body (1). The multi-point sealing assembly (3) includes a reverse double-threaded rod two (31). The left end of the reverse double-threaded rod two (31) is rotatably connected to the middle position of the left side of the inner wall of the mounting cylinder (12). The right end of the reverse double-threaded rod two (31) passes through the right side of the mounting cylinder (12) and is fixedly mounted with a turntable (32). The front part of the turntable (32) is movably connected with a locking mechanism. The left and right sides of the outer wall of the reverse double-threaded rod two (31) are threadedly connected with adjusting plates (33). The middle part of the outer wall of the mounting cylinder (12) has four rectangular grooves distributed in a ring. The inner walls of the four rectangular grooves are slidably connected with locking mechanisms. Plate (34), the four sides of the two adjustment plates (33) are rotatably connected to rotating plates (35), the ends of the eight adjacent rotating plates (35) away from the two adjustment plates (33) are rotatably connected to the left and right parts of the four clamping plates (34) near the axis of the mounting cylinder (12), the sides of the four clamping plates (34) away from the axis of the mounting cylinder (12) are fixedly installed with arc-shaped plates (36), the sides of the four arc-shaped plates (36) away from the axis of the mounting cylinder (12) are fixedly installed with rubber air cushions (37), the outer wall of the rubber air cushions (37) abuts against the right side of the inner wall of the pipe body (1).

2. The heating pipeline inlet sealing device according to claim 1, characterized in that: A guide rod (25) is fixedly installed on the front right side of the fixed plate (11), and the inner walls of the front of the two movable plates (23) are slidably connected to the upper and lower outer sides of the guide rod (25).

3. The heating pipeline inlet sealing device according to claim 1, characterized in that: The left side of each of the two clamps (24) is provided with anti-slip texture.

4. The pipe opening sealing device for a heating pipeline according to claim 1, characterized in that: Guide posts (38) are fixedly installed on the front and rear parts of the inner wall of the mounting cylinder (12), and the inner walls of the front and rear parts of the two adjusting plates (33) are slidably connected to the left and right parts of the outer walls of the two guide posts (38).

5. A pipe opening sealing device for heating pipelines according to claim 1, characterized in that: The positioning mechanism includes a fixed frame (39), the left side of which is fixedly installed on the front right side of the mounting cylinder (12). The middle of the upper and lower ends of the fixed frame (39) are provided with sliding grooves. The inner walls of the two sliding grooves are slidably connected with sliders (310). The middle right side of the slider (310) is fixedly installed with a stop bar (311). The front right side of the turntable (32) is provided with several arc-shaped grooves distributed in a ring. The right side of the outer wall of the stop bar (311) abuts against the inner wall of the several arc-shaped grooves.

6. A pipe opening sealing device for a heating pipeline according to claim 5, characterized in that: A spring (312) is fixedly installed on the front side of the slider (310), and the front end of the spring (312) is fixedly connected to the front part of the inner wall of the fixed frame (39).

7. A pipe opening sealing device for heating pipelines according to claim 1, characterized in that: A circular groove is provided through the middle of the right side of the fixing plate (11), and the size of the circular groove is much larger than the size of the turntable (32).

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