Double-bypass two-stage feeding PE pipe occluder

Abstract

The utility model discloses a two -stage feeding PE pipe plugging device of double bypass relates to the technical field of plugging device, including three -fold plugging head, three -fold plugging head top has the guide frame, the top of guide frame is connected with the hollow main shaft, is close to the bottom of hollow main shaft and is located the nested setting of double bypass continuous case above three -fold plugging head, and the hollow main shaft is located the central position of double bypass continuous case, and the top opening of double bypass continuous case is connected with the flange plate through bolt and keeps sealing, and the center position of flange plate inserts and sets up the positioning copper bushing and the clearance cooperation of hollow main shaft, and the top of flange plate is connected with thread sleeve, screw rod, bearing sleeve and main shaft tightly seat from bottom to top respectively, is located the top of hollow main shaft and is seted up and is dispersed and is opened, the inside and outside silk cover design of adoption in this application, and the worker is not apt to be in a flurry through two -stage step -by -step operation to repair, and it is more laborsaving to operate, and the inside and outside silk cover and screw rod of setting up can keep convenient storage.

Description

Technical Field

[0001] This utility model relates to the field of plugging device technology, and in particular to a dual-bypass two-stage feed PE pipe plugging device. Background Technology

[0002] In construction projects involving uninterrupted gas and water supply sealing and connection, sealing heads are often used to seal PE pipes. Manual sealing devices are currently a widely used tool. These are mechanical devices that seal pipes manually and are mainly used for temporary blocking or emergency repairs of PE pipes for gas and water supply. They are popular because they are driven by a movable handle, making them suitable for operation in confined spaces and compatible with PE pipes of various wall thicknesses. However, they are not suitable for deep downpipes, and the large amount of force required for operation can lead to fatigue during prolonged use. Utility Model Content

[0003] Therefore, in order to solve the above problems and shortcomings, this utility model provides a dual-bypass two-stage feed PE pipe plugger, including a three-fold plug head. The top of the three-fold plug head has a guide frame, and a hollow main shaft is connected to the top of the guide frame. A dual-bypass connecting box is nested above the three-fold plug head near the bottom of the hollow main shaft, and the hollow main shaft is located at the center of the dual-bypass connecting box. A flange is bolted to the top opening of the dual-bypass connecting box to maintain the plug. A positioning copper sleeve is embedded in the center of the flange to maintain clearance with the hollow main shaft. From bottom to top, the top of the flange is connected to a threaded sleeve, a screw, a bearing sleeve, and a main shaft clamping seat. A vent is opened at the top of the hollow main shaft. A vent pipe is provided on one side of the hollow main shaft between the three-fold plug head and the dual-bypass connecting box to maintain communication with the three-fold plug head.

[0004] Furthermore, the screw, inner and outer threaded sleeves, and threaded sleeve are sequentially and interlocked.

[0005] Furthermore, the top of the inner and outer threaded sleeves has inner and outer threaded sleeve handles, and the top of the screw has a screw handle.

[0006] Furthermore, the bearing sleeve is nested on the outside of the screw at the top of the screw handle.

[0007] Furthermore, the spindle clamping seat maintains a clearance fit with the hollow spindle and is bolted to the top of the bearing sleeve.

[0008] Furthermore, a spindle handle is connected to the top of the hollow spindle.

[0009] Furthermore, a knob spring positioning pin is embedded on one side of both the threaded sleeve and the inner and outer threaded sleeve surfaces.

[0010] The beneficial effects of this utility model can be specifically analyzed as follows:

[0011] First, the inner and outer threaded sleeves in this application adopt an inner and outer threaded sleeve design, which allows the threaded sleeve and screw to rotate and extend. The inner and outer threaded sleeves, along with the hollow main shaft, press down on the sealing head. Rotating the inner and outer threaded sleeve handles in the opposite direction lifts the sealing head. This directly increases the length and distance of the driving sealing head, making it convenient for operation in deeper downlink pipelines.

[0012] Secondly, the screw handle is used to control the rotation of the screw; the spindle handle is used to control the rotation of the hollow spindle. The two-stage step-by-step operation allows workers to perform emergency repairs without panicking, and the operation is more labor-saving. At the same time, the inner and outer threaded sleeves and screws can be easily stored. Attached Figure Description

[0013] Figure 1 This is an overall schematic diagram of the dual-bypass two-stage feed PE pipe plugger of this utility model;

[0014] Figure 2 This is a utility model Figure 1 A longitudinal section diagram;

[0015] Figure 3 This is a utility model Figure 1 An enlarged schematic diagram of part A in the middle;

[0016] Figure 4 This is a utility model Figure 1 A schematic diagram of the contracted state of the three-fold sealing head.

[0017] Attached reference numerals: 1. Three-fold sealing head; 2. Vent pipe; 3. Double bypass connecting box; 4. Flange; 5. Positioning copper sleeve; 6. Threaded sleeve; 7. Knob spring positioning pin; 8. Internal and external threaded sleeve; 9. Threaded sleeve handle; 10. Screw; 11. Screw handle; 12. Bearing sleeve; 13. Main spindle clamping seat; 14. Hollow main spindle; 15. Main spindle handle; 16. Vent port. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Throughout the invention, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] It should be understood that ordinal numbers and directional descriptions, such as "first," "second," "third," "upper," "lower," "left," and "right," are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly and not as limiting the scope of this utility model.

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Please refer to the attached drawings. Figure 1-4 As shown, this application provides a dual-bypass two-stage feed PE pipe plugging device, including a three-fold plugging head 1. The top of the three-fold plugging head 1 has a guide frame, and a hollow main shaft 14 is connected to the top of the guide frame. A dual-bypass connecting box 3 is nested above the three-fold plugging head 1 near the bottom of the hollow main shaft 14, and the hollow main shaft 14 is located at the center of the dual-bypass connecting box 3. A flange 4 is bolted to the top opening of the dual-bypass connecting box 3 to maintain the plugging. A positioning copper sleeve is embedded in the center of the flange 4. 5 is fitted with the hollow spindle 14 with clearance. The top of the flange 4 is connected from bottom to top with a threaded sleeve 6, a screw 10, a bearing sleeve 12 and a spindle clamping seat 13. A vent 16 is provided at the top of the hollow spindle 14. A vent pipe 2 is provided on one side of the hollow spindle 14 between the three-fold sealing head 1 and the double bypass box 3, which is connected to the three-fold sealing head 1. The residual medium in the waste pipe flows into the vent pipe 2 through the vent hole on the sealing head and is discharged from the vent hole 16 along the hollow spindle 14.

[0021] It should be noted that the three-fold sealing head 1 is prior art in this application, so its features and functions will not be described in detail here.

[0022] Figure 1-3 In the design, the screw 10, inner and outer threaded sleeves 8, and threaded sleeve 6 are sequentially embedded. The top of the inner and outer threaded sleeves 8 has an inner and outer threaded sleeve handle 9, and the top of the screw 10 has a screw handle 11. The screw handle 11 is fixedly connected to the screw 10 to control the rotation of the screw 10. The top of the hollow spindle 14 is connected to a spindle handle 15, which is fixedly connected to the hollow spindle 14 to control the rotation of the hollow spindle 14. It should be noted that the inner and outer threaded sleeves 8 are similar to the inner and outer threaded sleeves, located between the threaded sleeve 6 and the screw 10. When the inner and outer threaded sleeve handle 9 is rotated, the external thread on the inner and outer threaded sleeves 8 engages with the internal thread of the threaded sleeve 6, and the inner and outer threaded sleeves 8, along with the hollow spindle 14, press down on the sealing head 1. Similarly, rotating the inner and outer threaded sleeve handle 9 in the opposite direction lifts the sealing head 1. A knob spring positioning pin 7 is embedded on one side of the surface of the threaded sleeve 6 and the inner and outer threaded sleeves 8 to position the inner and outer threaded sleeves 8 and the screw 10.

[0023] As an example, it should be noted that the bearing sleeve 12 is nested outside the screw 10 at the top of the screw handle 11; the spindle clamping seat 13 maintains a clearance fit with the hollow spindle 14 and is bolted to the top of the bearing sleeve 12. The bearing sleeve 12 and the spindle clamping seat 13 constitute a limiting part, respectively holding the screw 10, the inner and outer threaded sleeves 8, the threaded sleeve 6, and the hollow spindle 14 within it for rotation and extension; specifically, the bearing sleeve 12 clamps the screw 10, the spindle clamping seat 13 clamps the hollow spindle 14, and the lower part of the hollow spindle 14 is clamped by the positioning copper sleeve 5, which plays a centering role. Sealing rings are installed inside and outside the positioning copper sleeve 5 to prevent gas leakage in the double bypass connecting box 3.

[0024] Working principle: The retracted plug head 1 is installed on the hollow main shaft 14 of the plugger. One end of the vent pipe 2 is connected to the vent hole on the plug head, and the other end is connected to the vent hole on the hollow main shaft 14. Tighten the screws on the main shaft clamping seat 13 to make the hollow main shaft 14 and the plugger body become one piece.

[0025] After the equipment is installed, loosen the screws on the main shaft clamping seat 13. The hollow main shaft 14 of the plugger, with the plug head in a retracted state, descends to the saddle-shaped pipe fitting on the PE pipe that needs to be plugged. The screw handle 11 and the internal and external threaded handle 9 are operated to drive the retracted plug head 1 down into the PE pipe through two-stage thread transmission and unfold it into a complete circle, thereby cutting off the flow of medium in the main PE pipe. At this time, the medium establishes a temporary pipeline flow through the bypass port of the double bypass box 3, realizing the non-stop plugging technology.

[0026] After the sealing is completed, the screw handle 11 and the inner and outer threaded sleeve handle 9 are operated to retract the unfolded sealing head through the two-stage thread transmission and lift it into the saddle-shaped pipe fitting. Then, the screws on the main shaft clamping seat 13 are loosened, the hollow main shaft 14 is lifted, and the sealing head is lifted into the double bypass connecting box to complete the entire sealing operation.

[0027] In summary, this utility model of a dual-bypass two-stage feed PE pipe plugger adopts an internal and external threaded sleeve design. The two-stage step-by-step operation allows workers to avoid panic during emergency repairs and makes the operation more labor-saving. At the same time, the internal and external threaded sleeves and screws can be easily stored.

[0028] The above are merely embodiments of this utility model. Common knowledge such as specific structures and characteristics in the solutions are not described in detail here. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and they will not affect the implementation effect of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A dual-bypass two-stage feed PE pipe plug, comprising a three-fold plug head (1), characterized in that: The three-fold sealing head (1) has a guide frame at the top, and a hollow main shaft (14) is connected to the top of the guide frame. A double bypass connecting box (3) is nested above the three-fold sealing head (1) near the bottom of the hollow main shaft (14), and the hollow main shaft (14) is located at the center of the double bypass connecting box (3). A flange (4) is bolted to the top opening of the double bypass connecting box (3) to maintain the sealing. A positioning device is embedded in the center of the flange (4). The copper sleeve (5) is fitted with the hollow spindle (14) with a clearance. The top of the flange (4) is connected from bottom to top with a threaded sleeve (6), a screw (10), a bearing sleeve (12) and a spindle clamping seat (13). A vent (16) is provided at the top of the hollow spindle (14). A vent pipe (2) is provided on one side of the hollow spindle (14) between the three-fold sealing head (1) and the double bypass box (3) to maintain communication with the three-fold sealing head (1).

2. The dual-bypass two-stage feed PE pipe plugging device according to claim 1, characterized in that: The screw (10), inner and outer threaded sleeves (8) and threaded sleeve (6) are respectively kept embedded in each other.

3. The dual-bypass two-stage feed PE pipe plugging device according to claim 2, characterized in that: The top end of the inner and outer threaded sleeve (8) has an inner and outer threaded sleeve handle (9), and the top end of the screw (10) has a screw handle (11).

4. The dual-bypass two-stage feed PE pipe plugging device according to claim 1, characterized in that: The bearing sleeve (12) is nested on the outside of the screw (10) at the top of the screw handle (11).

5. The dual-bypass two-stage feed PE pipe plugging device according to claim 1, characterized in that: The spindle clamping seat (13) maintains a clearance fit with the hollow spindle (14) and is bolted to the top of the bearing sleeve (12).

6. The dual-bypass two-stage feed PE pipe plugging device according to claim 1, characterized in that: The top of the hollow spindle (14) is connected to a spindle handle (15).

7. The dual-bypass two-stage feed PE pipe plugging device according to claim 1, characterized in that: A knob spring positioning pin (7) is embedded on one side of the surface of the threaded sleeve (6) and the inner and outer threaded sleeves (8).

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