Vertical positioning construction method and drilling machine for embedded parts used in building sewer main installation

By using embedded parts positioning seats and vertical positioning drilling machines in the installation of building drainage main pipes, the problems of time-consuming and labor-intensive measurement calibration and high installation cost in the existing technology are solved, and the rapid and accurate vertical drainage main pipes are achieved. Installation and sealing reduce construction costs and labor intensity.

CN115095147BActive Publication Date: 2024-12-27YIYUAN XINGFUYUAN NEW BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202210711192.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-22
Publication Date
2024-12-27
Estimated Expiration
2042-06-22

AI Technical Summary

Technical Problem

The installation method of existing building sewer main pipes has the problem of measuring and calibration time-consuming and labor-intensive, high labor intensity, high construction costs, and the installation of reserved holes requires destructive removal of small pots to increase construction costs.

Method used

The vertical positioning construction method of embedded parts for installation of building sewage main pipes is adopted. By drilling out the center marking hole of the sewage main pipe on the wooden formwork, and installing embedded parts layer by layer using embedded parts positioning seats and vertical positioning drilling machines to ensure that The drainage main pipe is kept vertical, reducing formwork support during mortar backfilling, and reducing labor intensity and construction costs.

Benefits of technology

It realizes the rapid and accurate installation of the sewage main pipes during the construction of the building, reduces labor intensity and construction costs, improves construction efficiency, and ensures the vertical installation and sealing quality of the sewage main pipes.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention discloses a vertical positioning construction method and a punching machine for embedded parts for installing a building sewer main pipe. The method comprises the following steps: marking a circle center mark of a first-layer sewer main pipe on a first-layer wooden template; drilling a circle center mark hole; installing an embedded part positioning seat; installing an embedded part for installing a building sewer main pipe; supporting a second-layer wooden template; installing a level positioning seat; placing a level, marking a circle center mark on the bottom plate surface of the second-layer wooden template, and punching a circle center projection mark concave hole with the cone head of a cone rod; aiming at the circle center projection mark concave hole, drilling a circle center mark hole on the second-layer wooden template with a vertical positioning punching machine for embedded parts for installing a building sewer main pipe, and inserting a plastic expansion plug; construction personnel find the plastic expansion plug on the upper plate of the second-layer wooden template, take out the plastic expansion plug, expose the circle center mark hole corresponding to the layer, and then follow the steps to construct until the top-layer wooden template.
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Description

Technical Field

[0001] The invention relates to the technical field of installation and construction of a building sewer main pipe, in particular to a vertical positioning construction method and a punching machine for embedded parts for installing a building sewer main pipe. The method is suitable for vertically positioning and installing embedded parts for installing a building sewer main pipe layer by layer during the construction of the building, so that the sewer main pipe of the entire building is finally kept vertical without bending. Background Art

[0002] At present, all buildings must install a sewer pipe with a diameter of 110 mm at the corner of the water room. For example, bathrooms, kitchens, and balconies must be equipped with such a drainage sewer pipe, and no matter how many floors the building has, this sewer pipe must be vertical from top to bottom. There are two ways to install this sewer pipe, one is later drilling installation, and the other is reserved hole installation. 1. Later drilling installation: After the main body of the building is completed, holes are drilled on the corresponding floor from top to bottom. The construction workers must first measure and calibrate the position of the installation hole on each floor, and then use a drilling machine to drill holes on the floor. The diameter of the installation hole is generally 160-200 mm, which is much larger than the outer diameter of the sewer pipe, so as to adjust the position of the sewer pipe in the installation hole so that it can remain vertical; its shortcomings are: it takes time and effort to measure, calibrate and drill holes on each floor, with high labor intensity, large dust and poor working environment; due to the large gap between the installation hole and the outer wall of the sewer pipe, when backfilling and sealing with mortar, the template needs to be re-supported, and the construction cost is high. 2. Installation of reserved holes: This reserved hole is made of a disposable small basin embedded in concrete. The outer diameter of the small basin is generally 160-200 mm. During the construction of the building, the small basin is placed with its opening facing downward on the erected wooden formwork, the small basin is positioned as required, and the edge of the small basin is fixed to the wooden formwork with nails. After the subsequent processes such as pouring concrete are completed, the wooden formwork is removed and the small basin is left on the formed floor; when the sewer pipe needs to be installed, the small basin is hammered out from top to bottom with a hammer to form a reserved hole on the floor, the sewer pipe is inserted into the reserved hole, and the gap between the reserved hole and the sewer pipe is backfilled with cement mortar; its disadvantage is that the small basin used to make the reserved hole is a disposable consumable and needs to be destructively removed, which increases the construction process and construction cost, is time-consuming and labor-intensive, and has high labor intensity; since the gap between the reserved hole formed after the small basin is removed and the outer wall of the sewer pipe is large, when the mortar is backfilled and sealed, the formwork needs to be re-supported, and the construction cost is high. In order to solve the above problems, our unit "Yiyuan County Xingfuyuan Furniture City" submitted a Chinese patent application for "Embedded parts for installing sewer pipes in buildings" on February 24, 2022. The patent application number is CN202220377314.3. After searching, no relevant vertical positioning installation construction methods were found. Summary of the invention

[0003] One object of the present invention is to provide a method for vertically positioning embedded parts for installing sewer pipes in buildings, in which a center mark hole of a sewer pipe is drilled on a wooden template layer by layer from bottom to top during the construction of the building, so as to fix and install the corresponding embedded parts for installing sewer pipes in the building, facilitate the subsequent installation and construction of the sewer pipes, ensure that the entire sewer pipe in the building remains vertical, and when sealing the gap between the sewer pipe and the embedded parts for installing sewer pipes in the building, there is no need to support the template, thus saving time and labor, reducing labor intensity, and improving construction efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0005] The vertical positioning construction method of the embedded parts for installing the building sewer main pipe is characterized by comprising the following steps:

[0006] (I) Mark the center mark of the first-layer sewer main on the first-layer wooden formwork: Determine its position on the first-layer wooden formwork according to the design requirements of the building sewer main, and draw the center mark of the first-layer sewer main on the upper board of the first-layer wooden formwork;

[0007] (ii) Drilling the center mark hole: Use an electric drill to align the center mark of the first layer of sewer main pipe, and drill a vertical center mark hole on the first layer of wooden template;

[0008] (III) Install the embedded part positioning seat on the center mark hole: the embedded part positioning seat includes a positioning disc, a center column and a handle. The outer diameter of the positioning disc is the same as the inner diameter of the embedded part for installing the building sewer main pipe. The center of the bottom panel of the positioning disc is fixed with a center column. The outer diameter of the center column is the same as the inner diameter of the center mark hole. The top panel of the positioning disc is fixed with a handle. The central axes of the positioning disc and the center column coincide. When in use, the center column of the embedded part positioning seat is inserted into the center mark hole, so that the embedded part positioning seat is installed on the first layer of wooden formwork.

[0009] (IV) Install the corresponding embedded parts for installing the building sewer main pipe on the first layer of wooden formwork: put the bottom of the inner cavity of the embedded parts for installing the building sewer main pipe on the outside of the embedded parts positioning seat, and fix it on the first layer of wooden formwork with screws, and then use the handle to remove the embedded parts positioning seat from the upper opening of the inner cavity of the embedded parts for installing the building sewer main pipe, and the central axis of the embedded parts for installing the building sewer main pipe coincides with the center mark of the sewer main pipe;

[0010] (V) After the pouring construction of the first floor on the first wooden formwork is completed, the embedded parts for installing the building sewer pipe corresponding to the first floor are also embedded in the floor, and then the second wooden formwork is supported;

[0011] (VI) Install a leveling instrument positioning seat at the upper opening of the embedded parts for installing the building sewer main pipe corresponding to the first floor: the leveling instrument positioning seat is composed of an upper cover plate and a positioning cylinder, a center mark line is provided on the upper plate surface of the upper cover plate, and a positioning cylinder is fixedly provided on the bottom of the upper cover plate, the outer diameter of the positioning cylinder is the same as the inner diameter of the embedded parts for installing the building sewer main pipe, and the central axis of the positioning cylinder coincides with the center of the circle marked by the center mark line; insert the positioning cylinder of the leveling instrument positioning seat into the upper opening of the embedded parts for installing the building sewer main pipe corresponding to the first floor, so that the upper cover plate horizontally covers the upper opening of the embedded parts for installing the building sewer main pipe corresponding to the first floor;

[0012] (VII) Place a level and mark the center mark of the second-layer sewer main on the bottom plate of the second-layer wooden formwork: Place the level on the upper cover of the level positioning seat, adjust the position of the level so that the central axis of the level coincides with the center of the circle marked by the center mark line on the upper cover. At the same time, the level will project the center position marked by the center mark line onto the bottom plate of the second-layer wooden formwork, and then use the cone head of the cone rod to poke a center projection mark concave hole at this projection position;

[0013] (VIII) Align the center projection mark concave hole, use the vertical positioning puncher of the embedded parts for the building sewer main installation to drill the center mark hole of the second-layer sewer main on the second-layer wooden template, and insert the plastic expansion plug: first remove the level gauge positioning seat at the upper end of the embedded parts for the building sewer main installation corresponding to the first floor, and then install the vertical positioning puncher of the embedded parts for the building sewer main installation at the upper end of the embedded parts for the building sewer main installation;

[0014] The vertical positioning punching machine for embedded parts for installing building sewer pipes comprises a positioning column, a base plate, a fixing rod, a transmission box, an adjusting rod, a rack, a lower extension rod, a straightening locking device, an upper extension rod, an electric drill and an electric drill switch. The fixing rod is vertically fixed at the center of the base plate, a positioning column is fixedly provided at the bottom of the base plate, the outer diameter of the positioning column is the same as the inner cavity diameter of the embedded parts for installing building sewer pipes, a transmission box is fixedly provided at the upper end of the fixing rod, an adjusting rod is provided in the cavity of the fixing rod, a rack is fixedly provided on the outer wall of the adjusting rod, the adjusting rod passes through the through hole in the middle of the transmission box, and the rack on the outer wall of the adjusting rod meshes with the gear in the transmission box for transmission, and the crank The inner end is fixedly connected with the gear in the transmission box, and the crank is turned to drive the gear to rotate, and the adjusting rod is driven to rise or fall through the meshing transmission rack. A lower extension rod is arranged in the cavity of the adjusting rod, and an upper extension rod is arranged in the cavity of the lower extension rod. The lower ends of the adjusting rod and the lower extension rod and the lower extension rod and the upper extension rod are respectively connected and fixed by a straightening locking device. An electric drill is fixedly arranged on the upper end of the upper extension rod, and the diameter of the drill bit of the electric drill is the same as the inner diameter of the circle center mark hole. An electric drill switch of the electric drill is fixedly arranged on the outer wall of the fixing rod, and the drill bit of the electric drill coincides with the central axis of the positioning column, the fixing rod, the adjusting rod, the lower extension rod, and the upper extension rod;

[0015] During operation, insert the positioning column into the upper opening of the embedded part for installing the building sewer pipe corresponding to the first floor, pull out the upper extension rod from the lower extension rod, pull out the lower extension rod from the adjustment rod, and lock and fix them with the corresponding straightening locking devices respectively, turn the crank to drive the adjustment rod to rise, so that the drill bit of the electric drill is against the center projection mark concave hole, start the electric drill by the electric drill switch, slowly turn the crank, and drive the adjustment rod to rise again until the drill bit of the electric drill drills through the second layer of wooden template, thereby forming the center mark hole of the second layer of sewer pipe on the second layer of wooden template, turn the crank in the opposite direction to make the drill bit of the electric drill detach from the second layer of wooden template, then pull out the positioning column, and put away the vertical positioning punching machine of the embedded part for installing the building sewer pipe; insert the cone head of the cone rod into the hole at the rear end of the plastic expansion plug, lift and insert it into the center mark hole of the second layer of sewer pipe, and make the upper end of the plastic expansion plug extend out of the upper panel of the second layer of wooden template;

[0016] (IX) Construction workers find the plastic expansion plug on the upper panel of the second layer of wooden formwork, remove the plastic expansion plug, expose the center mark hole corresponding to that layer, and then follow steps (III) to (VIII) in sequence until the top layer of wooden formwork is reached.

[0017] The upper part and the lower part of the peripheral edge of the positioning disc of the embedded part positioning seat are respectively provided with an upper inclined surface and a lower inclined surface.

[0018] In the step (seven), a marking ring is installed on the cone head of the cone rod, and a white lime water mark is applied on the bottom panel of the second layer of wooden formwork around the center projection mark recess by the marking ring; the marking ring is composed of an annular plate, a sponge ring and a fixed block, the fixed block is fixedly arranged on the side wall of the annular plate, a mounting hole matched with the cone head of the cone rod is provided at the bottom of the fixed block, and a sponge ring is fixedly arranged on the upper part of the annular plate, and the sponge ring is adsorbed with white lime water; when in use, the cone head of the cone rod is inserted into the mounting hole at the bottom of the fixed block, the marking ring is raised to the bottom panel of the second layer of wooden formwork, and a white lime water mark is applied around the center projection mark recess by the sponge ring.

[0019] The straightening locking device is composed of a straightening sleeve and a locking device; the locking device includes a central axis, a wedge-shaped protrusion, a "C"-shaped retaining ring, a mounting block and a stop edge, the upper and lower ends of the central axis are respectively fixed with stop edges, the middle part of the upper end of the central axis is fixed with a mounting block, the outer wall of the central axis is fixed with a wedge-shaped protrusion, the outer wall of the central axis is sleeved with a "C"-shaped retaining ring, and the two free ends of the "C"-shaped retaining ring are respectively fixed with inner protrusions; the locking device is arranged in the lower extension rod, the mounting block is fixed in the lower port of the upper extension rod by rivets, and the diameter of the stop edge is the same as the inner cavity diameter of the lower extension rod; the middle part of the straightening sleeve is provided with an insertion tube, the outer wall of the upper end of the straightening sleeve is provided with an annular groove, the insertion tube is inserted between the outer wall of the upper extension rod and the inner wall of the lower extension rod, and the annular groove is sleeved on the upper edge of the lower extension rod.

[0020] The lengths of the fixing rod, the adjusting rod, the lower extension rod and the upper extension rod are all 90 cm.

[0021] Another object of the present invention is to provide a vertical positioning punching machine for embedded parts for installing sewer pipes in buildings, which is suitable for accurately drilling center mark holes of sewer pipes perpendicular to the horizontal plane on wooden templates erected layer by layer during the installation construction of embedded parts for installing sewer pipes in buildings, so that the center mark holes of sewer pipes on all floors are located on the same vertical straight line, has a simple structure, and is easy to use.

[0022] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0023] The vertical positioning punching machine for embedded parts for installing building sewer pipes comprises a positioning column, a base plate, a fixing rod, a transmission box, an adjusting rod, a rack, a lower extension rod, a straightening locking device, an upper extension rod, an electric drill and an electric drill switch, and is characterized in that: the fixing rod is vertically fixed at the center of the base plate, a positioning column is fixedly arranged at the bottom of the base plate, the outer diameter of the positioning column is the same as the inner cavity diameter of the embedded parts for installing building sewer pipes, a transmission box is fixedly arranged at the upper end of the fixing rod, an adjusting rod is arranged in the cavity of the fixing rod, a rack is fixedly arranged on the outer wall of the adjusting rod, the adjusting rod passes through the through hole in the middle of the transmission box, and the outer wall of the adjusting rod is fixedly arranged with a rack. The rack is meshed with the gear in the transmission box for transmission, the inner end of the crank is fixedly connected to the gear in the transmission box, a lower extension rod is provided in the cavity of the adjusting rod, an upper extension rod is provided in the cavity of the lower extension rod, the adjusting rod and the lower end of the lower extension rod and the lower extension rod and the upper extension rod are respectively connected and fixed by a straightening locking device, an electric drill is fixedly provided on the upper end of the upper extension rod, the diameter of the drill bit of the electric drill is the same as the inner diameter of the center mark hole, an electric drill switch of the electric drill is fixedly provided on the outer wall of the fixing rod, and the drill bit of the electric drill coincides with the central axis of the positioning column, the fixing rod, the adjusting rod, the lower extension rod and the upper extension rod.

[0024] The straightening locking device is composed of a straightening sleeve and a locking device; the locking device includes a central axis, a wedge-shaped protrusion, a "C"-shaped retaining ring, a mounting block and a stop edge, the upper and lower ends of the central axis are respectively fixed with stop edges, the middle part of the upper end of the central axis is fixed with a mounting block, the outer wall of the central axis is fixed with a wedge-shaped protrusion, the outer wall of the central axis is sleeved with a "C"-shaped retaining ring, and the two free ends of the "C"-shaped retaining ring are respectively fixed with inner protrusions; the locking device is arranged in the lower extension rod, the mounting block is fixed in the lower port of the upper extension rod by rivets, and the diameter of the stop edge is the same as the inner cavity diameter of the lower extension rod; the middle part of the straightening sleeve is provided with an insertion tube, the outer wall of the upper end of the straightening sleeve is provided with an annular groove, the insertion tube is inserted between the outer wall of the upper extension rod and the inner wall of the lower extension rod, and the annular groove is sleeved on the upper edge of the lower extension rod.

[0025] The lengths of the fixing rod, the adjusting rod, the lower extension rod and the upper extension rod are all 90 cm.

[0026] The beneficial effects of the present invention are as follows: during the construction of a building, a center mark hole of a sewer pipe is drilled on a wooden template layer by layer from bottom to top, and the center mark holes of the sewer pipes on all floors are located on the same vertical straight line. The center mark hole of the sewer pipe is taken as the center of the circle, and embedded parts for installing the sewer pipe in the building are fixedly installed on the wooden templates of the corresponding floors, which facilitates the subsequent installation and construction of the sewer pipe and ensures that the entire sewer pipe in the building remains vertical. At the same time, since the gap between the sewer pipe and the embedded parts for installing the sewer pipe in the building is small, there is no need to support the template when plugging, which saves time and labor, reduces labor intensity, improves construction efficiency, and ensures the installation quality of the sewer pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic cross-sectional view of the structure of embedded parts for installing sewer pipes in buildings;

[0028] Figure 2 It is a schematic diagram of the structure of the embedded part positioning seat in the present invention;

[0029] Figure 3 It is a schematic top view of the structure of the embedded part positioning seat in the present invention;

[0030] Figure 4 It is a schematic diagram of the front view of the structure of the cone rod in the present invention;

[0031] Figure 5 It is a schematic top view of the structure of the marking ring in the present invention;

[0032] Figure 6 It is a bottom view schematic diagram of the structure of the marking ring in the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the vertical positioning punching machine for the embedded parts for installing the building sewer main pipe in the present invention;

[0034] Figure 8 It is a partial cross-sectional enlarged schematic diagram of the structure of the righting and locking device in the present invention;

[0035] Fig. 9 It is an enlarged schematic diagram of the front view of the structure of the locking device in the present invention;

[0036] Fig.10 For along Fig. 9 A schematic cross-sectional view of the locking device in the A-A direction;

[0037] Fig.11 It is an enlarged schematic diagram of the structure of the "C"-shaped snap ring in the present invention from top view;

[0038] Fig.12 It is an enlarged schematic cross-sectional view of the structure of the straightening sleeve in the present invention;

[0039] Fig.13 It is a schematic diagram of the structure of the level positioning seat in the present invention;

[0040] Fig.14 It is a schematic top view of the structure of the level positioning seat in the present invention.

[0041] In the figure: 1, embedded casing; 2, bottom ring platform; 3, middle boss; 4, bottom fixing block; 5, middle reinforcement plate; 6, through hole; 7, bottom reinforcement plate; 8, breaking groove; 9, fixing hole; 10, positioning disc; 11, center column; 12, center mark line; 13, handle; 14, upper inclined surface; 15, lower inclined surface; 16, hand-held rod; 17, cone head; 18, annular plate; 19, sponge ring; 20, fixing block; 21, installation hole; 22, positioning column; 23, bottom plate; 2 4. Fixing rod; 25. Crank; 26. Transmission box; 27. Adjusting rod; 28. Rack; 29. ​​Lower extension rod; 30. Straightening locking device; 301. Straightening sleeve; 302. Center axis; 303. Wedge-shaped protrusion; 304. "C"-shaped retaining ring; 305. Mounting block; 306. Stop edge; 307. Inner protrusion; 308. Insertion tube; 309. Ring groove; 31. Upper extension rod; 32. Electric drill; 33. Drill bit; 34. Upper cover plate; 35. Positioning tube; 36. Electric drill switch. DETAILED DESCRIPTION

[0042] like Figure 1 As shown, the embedded parts for installing the sewer pipe in the building include an embedded sleeve 1, the length of the embedded sleeve 1 is 22-27 cm, and the diameter of the embedded sleeve 1 is larger than the diameter of the sewer pipe; a bottom ring platform 2 is fixedly provided on the outer wall of the lower end of the embedded sleeve 1, a bottom fixing block 4 is fixedly provided on the peripheral edge of the bottom ring platform 2, a fixing hole 9 is provided in the middle of the bottom fixing block 4, and a breaking groove 8 is provided on the upper panel of the bottom fixing block 4, and the breaking groove 8 is located at the peripheral edge of the bottom ring platform 2 and the fixing hole 9 a middle boss 3 is fixedly provided on the middle outer wall of the embedded sleeve 1; a middle reinforcing plate 5 is fixedly provided between the bottom panel of the middle boss 3 and the outer wall of the embedded sleeve 1; a through hole 6 is provided in the middle of the middle reinforcing plate 5; a bottom reinforcing plate 7 is fixedly provided between the upper panel of the bottom ring platform 2 and the outer wall of the embedded sleeve 1; the spacing between the middle boss 3 and the bottom ring platform 2 is 10 cm; the diameter of the embedded sleeve 1 is 10-15 mm larger than the diameter of the sewer main pipe.

[0043] The vertical positioning construction method of the embedded parts for installing the building sewer main pipe is characterized by comprising the following steps:

[0044] (I) Mark the center mark of the first-layer sewer pipe on the first-layer wooden formwork: Determine its position on the first-layer wooden formwork according to the design requirements of the building sewer pipe, and draw the center mark of the first-layer sewer pipe on the upper panel of the first-layer wooden formwork; For example, for the first-layer wooden formwork corresponding to the bathroom, kitchen, and balcony, according to the design requirements of the building sewer pipe, the center of the sewer pipe is 150 mm away from the two edges of the corner of the first-layer wooden formwork, and the center mark is drawn;

[0045] (ii) Drilling the center mark hole: Use an electric drill to align the center mark of the first layer of sewer main pipe, and drill a vertical center mark hole on the first layer of wooden template;

[0046] (III) Install the embedded part positioning seat on the center mark hole: the embedded part positioning seat includes a positioning disc 10, a center column 11 and a handle 13. The outer diameter of the positioning disc 10 is the same as the inner diameter of the embedded part for installing the building sewer pipe. The center of the bottom panel of the positioning disc 10 is fixed with a center column 11. The outer diameter of the center column 11 is the same as the inner diameter of the center mark hole. The top panel of the positioning disc 10 is fixed with a handle 13. The central axes of the positioning disc 10 and the center column 11 coincide with each other. When in use, the center column 11 of the embedded part positioning seat is inserted into the center mark hole, so that the embedded part positioning seat is installed on the first layer of wooden formwork.

[0047] (IV) Install the corresponding embedded parts for installing the building sewer main pipe on the first layer of wooden formwork: sleeve the bottom of the inner cavity of the embedded parts for installing the building sewer main pipe on the outside of the embedded parts positioning seat, and fix it on the first layer of wooden formwork with screws, and then remove the embedded parts positioning seat from the upper opening of the inner cavity of the embedded parts for installing the building sewer main pipe by means of the handle 13, so that the central axis of the embedded parts for installing the building sewer main pipe coincides with the center mark of the sewer main pipe;

[0048] (V) After the pouring construction of the first floor on the first wooden formwork is completed, the embedded parts for installing the building sewer pipe corresponding to the first floor are also embedded in the floor, and then the second wooden formwork is supported;

[0049] (VI) Install a leveling instrument positioning seat at the upper opening of the embedded parts for installing the building sewer main pipe corresponding to the first floor: the leveling instrument positioning seat is composed of an upper cover plate 34 and a positioning tube 35. A center mark line 12 is provided on the upper plate surface of the upper cover plate 34. A positioning tube 35 is fixedly provided at the bottom of the upper cover plate 34. The outer diameter of the positioning tube 35 is the same as the inner diameter of the embedded parts for installing the building sewer main pipe. The central axis of the positioning tube 35 coincides with the center of the circle marked by the center mark line 12. Insert the positioning tube 35 of the leveling instrument positioning seat into the upper opening of the embedded parts for installing the building sewer main pipe corresponding to the first floor, so that the upper cover plate 34 horizontally covers the upper opening of the embedded parts for installing the building sewer main pipe corresponding to the first floor;

[0050] (VII) Place a level and mark the center mark of the second-layer sewer main on the bottom plate of the second-layer wooden formwork: Place the level on the upper cover plate 34 of the level positioning seat, adjust the position of the level so that the central axis of the level coincides with the center of the circle marked by the center mark line 12 on the upper cover plate 34, and at the same time, the level will project the center position marked by the center mark line 12 onto the bottom plate of the second-layer wooden formwork, and then use the cone head 17 of the cone rod to poke a center projection mark recess at this projection position;

[0051] (VIII) Align the center projection mark concave hole, use the vertical positioning puncher of the embedded parts for the building sewer main installation to drill the center mark hole of the second-layer sewer main on the second-layer wooden template, and insert the plastic expansion plug: first remove the level gauge positioning seat at the upper end of the embedded parts for the building sewer main installation corresponding to the first floor, and then install the vertical positioning puncher of the embedded parts for the building sewer main installation at the upper end of the embedded parts for the building sewer main installation;

[0052] The vertical positioning punching machine for embedded parts for installing building sewer pipes comprises a positioning column 22, a base plate 23, a fixing rod 24, a transmission box 26, an adjusting rod 27, a rack 28, a lower extension rod 29, a straightening locking device 30, an upper extension rod 31, an electric drill 32 and an electric drill switch 36. The fixing rod 24 is vertically fixed at the center of the base plate 23. The bottom of the base plate 23 is fixedly provided with a positioning column 22. The outer diameter of the positioning column 22 is the same as the inner cavity diameter of the embedded parts for installing building sewer pipes. The upper end of the fixing rod 24 is fixedly provided with a transmission box 26. The cavity of the fixing rod 24 is provided with an adjusting rod 27. The outer wall of the adjusting rod 27 is fixedly provided with a rack 28. The adjusting rod 27 passes through the through hole in the middle of the transmission box 26. The rack 28 on the outer wall of the adjusting rod 27 is meshed with the gear in the transmission box 26 for transmission. The crank 25 The inner end is fixedly connected with the gear in the transmission box 26, and the crank 25 is turned to drive the gear to rotate, and the adjusting rod 27 is driven to rise or fall through the meshing transmission rack 28. A lower extension rod 29 is provided in the cavity of the adjusting rod 27, and an upper extension rod 31 is provided in the cavity of the lower extension rod 29. The lower ends of the adjusting rod 27 and the lower extension rod 29 and the lower extension rod 29 and the upper extension rod 31 are respectively connected and fixed by a straightening locking device 30. An electric drill 32 is fixedly provided at the upper end of the upper extension rod 31. The diameter of the drill bit 33 of the electric drill 32 is the same as the inner diameter of the center mark hole. An electric drill switch 36 of the electric drill 32 is fixedly provided on the outer wall of the fixing rod 24. The drill bit 33 of the electric drill 32 coincides with the central axis of the positioning column 22, the fixing rod 24, the adjusting rod 27, the lower extension rod 29, and the upper extension rod 31;

[0053] During operation, the positioning column 22 is inserted into the upper opening of the embedded part for installing the building sewer pipe corresponding to the first floor, the upper extension rod 31 is pulled out from the lower extension rod 29, the lower extension rod 29 is pulled out from the adjustment rod 27, and they are locked and fixed with the corresponding straightening locking devices 30, respectively, the crank 25 is turned to drive the adjustment rod 27 to rise, so that the drill bit 33 of the electric drill 32 is pressed against the concave hole of the center projection mark, the electric drill 32 is started by the electric drill switch 36, and the crank 25 is slowly turned to drive the adjustment rod 27 to rise again until the drill bit 33 of the electric drill 32 drills through the second layer of wooden template, thereby forming the center mark hole of the second layer of sewer pipe on the second layer of wooden template. , reversely rotate the crank 25 to disengage the drill bit 33 of the electric drill 32 from the second-layer wooden template, then pull out the positioning column 22, and put away the vertical positioning puncher of the embedded part for installing the building sewer main pipe; insert the cone head 17 of the cone rod into the hole at the rear end of the plastic expansion plug, lift and insert it into the center mark hole of the second-layer sewer main pipe, and make the upper end of the plastic expansion plug extend out of the upper panel of the second-layer wooden template, so that the construction personnel can quickly find the plastic expansion plug on the upper panel of the second-layer wooden template. The plastic expansion plug can be purchased from the market, and the diameter of 8 mm can be selected. The plastic expansion plug itself has a color, which has a large contrast with the color of the upper panel of the wooden template, and is very easy to find;

[0054] (IX) Construction workers find the plastic expansion plug on the upper panel of the second layer of wooden formwork, remove the plastic expansion plug, expose the center mark hole corresponding to that layer, and then follow steps (III) to (VIII) in sequence until the top layer of wooden formwork is reached.

[0055] After the corresponding embedded parts for installing the building sewer main pipe are installed on the floors of all floors, the sewer main pipe can be installed from the bottom to the top, and the sewer main pipe is inserted into the cavity of the embedded parts for installing the building sewer main pipe. Since the central axes of the embedded parts for installing the building sewer main pipe on all floors coincide, the installed sewer main pipe is vertical. Since the inner cavity diameter of the embedded parts for installing the building sewer main pipe is 10-15mm larger than the diameter of the sewer main pipe, the gap between the inner wall of the embedded parts for installing the building sewer main pipe and the outer wall of the sewer main pipe is small, and can be directly filled with a leak-proof king without setting up a template; or a rubber ring can be set on the sewer main pipe, and the rubber ring can be inserted between the inner wall of the embedded parts for installing the building sewer main pipe and the outer wall of the sewer main pipe, and then filled with a leak-proof king.

[0056] The upper and lower parts of the peripheral edge of the positioning disc 10 of the embedded part positioning seat are respectively provided with an upper inclined surface 14 and a lower inclined surface 15, so as to facilitate the embedded part positioning seat to be taken out from the upper opening of the inner cavity of the embedded part for installing the building sewer main pipe.

[0057] In the step (VII), since the center projection mark concave hole is small, in order to facilitate the construction personnel to find it, after installing the marking ring on the cone head 17 of the cone rod, the marking ring is used to apply a white lime water mark on the bottom panel of the second layer of wooden template around the center projection mark concave hole; the marking ring is composed of an annular plate 18, a sponge ring 19 and a fixed block 20, the fixed block 20 is fixedly arranged on the side wall of the annular plate 18, the bottom of the fixed block 20 is provided with a mounting hole 21 adapted to the cone head 17 of the cone rod, and the upper part of the annular plate 18 is fixedly provided with a sponge ring 19, and the sponge ring 19 is adsorbed with white lime water; when in use, the cone head 17 of the cone rod is inserted into the mounting hole 21 at the bottom of the fixed block 20, the marking ring is raised to the bottom panel of the second layer of wooden template, and the sponge ring 19 is used to apply a white lime water mark around the center projection mark concave hole; since the white lime water mark is more eye-catching, the construction personnel only need to search within the circle of the white lime water mark, which is convenient and quick.

[0058] The cone rod is composed of a hand-held rod 16 and a cone head 17. The cone head 17 is fixedly provided at the front end of the hand-held rod 16. The hand-held rod 16 is a telescopic rod with two sections. This is the prior art.

[0059] The vertical positioning punching machine for embedded parts for installing building sewer pipes comprises a positioning column 22, a base plate 23, a fixing rod 24, a transmission box 26, an adjusting rod 27, a rack 28, a lower extension rod 29, a straightening locking device 30, an upper extension rod 31, an electric drill 32 and an electric drill switch 36. The fixing rod 24 is vertically fixed at the center of the base plate 23. The bottom of the base plate 23 is fixedly provided with a positioning column 22. The outer diameter of the positioning column 22 is the same as the inner cavity diameter of the embedded parts for installing building sewer pipes. The upper end of the fixing rod 24 is fixedly provided with a transmission box 26. The cavity of the fixing rod 24 is provided with an adjusting rod 27. The outer wall of the adjusting rod 27 is fixedly provided with a rack 28. The adjusting rod 27 passes through the through hole in the middle of the transmission box 26, and the rack 28 on the outer wall of the adjusting rod 27 is fixedly provided with a gear box 26. It meshes with the gear in the transmission box 26 for transmission, and the inner end of the crank 25 is fixedly connected to the gear in the transmission box 26. A lower extension rod 29 is provided in the cavity of the adjusting rod 27, and an upper extension rod 31 is provided in the cavity of the lower extension rod 29. The lower ends of the adjusting rod 27 and the lower extension rod 29 and the lower extension rod 29 and the upper extension rod 31 are connected and fixed by a straightening locking device 30 respectively. An electric drill 32 is fixedly provided at the upper end of the upper extension rod 31. The diameter of the drill bit 33 of the electric drill 32 is the same as the inner diameter of the center mark hole. An electric drill switch 36 of the electric drill 32 is fixedly provided on the outer wall of the fixing rod 24. The drill bit 33 of the electric drill 32 coincides with the central axis of the positioning column 22, the fixing rod 24, the adjusting rod 27, the lower extension rod 29, and the upper extension rod 31.

[0060] The straightening locking device 30 is composed of a straightening sleeve 301 and a locking device; the locking device includes a central axis 302, a wedge-shaped protrusion 303, a "C"-shaped snap ring 304, a mounting block 305 and a retaining edge 306, the upper and lower ends of the central axis 302 are respectively fixed with retaining edges 306, the middle part of the upper end of the central axis 302 is fixed with a mounting block 305, the outer wall of the central axis 302 is fixed with a wedge-shaped protrusion 303, the outer wall of the central axis 302 is sleeved with a "C"-shaped snap ring 304, and the two free ends of the "C"-shaped snap ring 304 are respectively fixed with inner protrusions 307; the locking device is arranged in the lower extension rod 29, the mounting block 305 is fixed in the lower port of the upper extension rod 31 by rivets, and the diameter of the retaining edge 306 is the same as the inner cavity diameter of the lower extension rod 29; Fig.10 As shown in the figure, when the middle shaft 302 is rotated counterclockwise, the wedge-shaped protrusion 303 is inserted into the inner side of the "C"-shaped snap ring 304 and presses it against the inner wall of the lower extension rod 29 to achieve locking and fixing, so that the upper extension rod 31 will not retract into the cavity of the lower extension rod 29; when the middle shaft 302 is rotated reversely, the wedge-shaped protrusion 303 is pulled out from the inner side of the "C"-shaped snap ring 304, and the large head of the wedge-shaped protrusion 303 will press against the inner convex block 307 of the "C"-shaped snap ring 304 until the "C"-shaped The retaining ring 304 is loosened freely, so that the upper extension rod 31 can be retracted into the cavity of the lower extension rod 29; an insertion tube 308 is provided in the middle of the straightening sleeve 301, and an annular groove 309 is provided on the outer wall of the upper end of the straightening sleeve 301. The insertion tube 308 is inserted between the outer wall of the upper extension rod 31 and the inner wall of the lower extension rod 29, so that the central axis of the upper extension rod 31 and the lower extension rod 29 coincide, and the two are fixed more firmly. The annular groove 309 is sleeved on the upper edge of the lower extension rod 29.

[0061] The lengths of the fixing rod 24, the adjusting rod 27, the lower extension rod 29 and the upper extension rod 31 are all 90 cm, and the total length is adapted to the floor height of the building and is easy to carry.

[0062] Similarly, when the righting locking device 30 is placed between the lower extension rod 29 and the adjustment rod 27 for use, corresponding adjustments can be made.

[0063] The straightening locking device 30 may also have other configurations, as long as the upper extension rod 31 and the lower extension rod 29 can be kept relatively fixed and the central axes coincide with each other; the upper extension rod 31 and the lower extension rod 29 may also be made into a straight rod, but the length thereof is increased, making it difficult to carry.

Claims

1. A vertical positioning construction method for embedded parts for installation of building sewer mains, characterized in that: The following steps are included: (I) Mark the center mark of the first-layer sewer main on the first-layer wooden formwork: Determine its position on the first-layer wooden formwork according to the design requirements of the building sewer main, and draw the center mark of the first-layer sewer main on the upper board of the first-layer wooden formwork; (ii) Drilling the center mark hole: Use an electric drill to align the center mark of the first layer of sewer main pipe, and drill a vertical center mark hole on the first layer of wooden template; (III) Installing the embedded component positioning seat on the center mark hole: the embedded component positioning seat comprises a positioning disc (10), a center column (11) and a handle (13); the outer diameter of the positioning disc (10) is the same as the inner diameter of the embedded component for installing the building sewer main pipe; the center of the bottom panel of the positioning disc (10) is fixedly provided with a center column (11); the outer diameter of the center column (11) is the same as the inner diameter of the center mark hole; the top panel of the positioning disc (10) is fixedly provided with a handle (13); the central axes of the positioning disc (10) and the center column (11) coincide; when in use, the center column (11) of the embedded component positioning seat is inserted into the center mark hole, thereby installing the embedded component positioning seat on the first layer of wooden formwork; (iv) Install the corresponding embedded parts for installing the building sewer main pipe on the first layer of wooden formwork: put the bottom of the inner cavity of the embedded parts for installing the building sewer main pipe on the outside of the embedded parts positioning seat, and fix it on the first layer of wooden formwork with screws, and then remove the embedded parts positioning seat from the upper opening of the inner cavity of the embedded parts for installing the building sewer main pipe by means of a handle (13), so that the central axis of the embedded parts for installing the building sewer main pipe coincides with the center mark of the sewer main pipe; (V) After the pouring construction of the first floor on the first wooden formwork is completed, the embedded parts for installing the building sewer pipe corresponding to the first floor are also embedded in the floor, and then the second wooden formwork is supported; (VI) Installing a level gauge positioning seat at the upper opening of the embedded part for installing the building sewer main pipe corresponding to the first floor: the level gauge positioning seat is composed of an upper cover plate (34) and a positioning cylinder (35), the upper plate surface of the upper cover plate (34) is provided with a center mark line (12), the bottom of the upper cover plate (34) is fixedly provided with a positioning cylinder (35), the outer diameter of the positioning cylinder (35) is the same as the inner diameter of the embedded part for installing the building sewer main pipe, and the central axis of the positioning cylinder (35) coincides with the center of the circle marked by the center mark line (12); inserting the positioning cylinder (35) of the level gauge positioning seat into the upper opening of the embedded part for installing the building sewer main pipe corresponding to the first floor, so that the upper cover plate (34) horizontally covers the upper opening of the embedded part for installing the building sewer main pipe corresponding to the first floor; (VII) placing a level and marking the center mark of the second layer of the water main on the bottom plate surface of the second layer of the wooden template: placing the level on the upper cover plate (34) of the level positioning seat, adjusting the position of the level so that the central axis of the level coincides with the center of the circle marked by the center mark line (12) on the upper cover plate (34), and at the same time, the level will project the center position marked by the center mark line (12) onto the bottom plate surface of the second layer of the wooden template, and then use the cone head (17) of the cone rod to poke a center projection mark concave hole at this projection position; (VIII) Align the center projection mark concave hole, use the vertical positioning puncher of the embedded parts for the building sewer main installation to drill the center mark hole of the second-layer sewer main on the second-layer wooden template, and insert the plastic expansion plug: first remove the level gauge positioning seat at the upper end of the embedded parts for the building sewer main installation corresponding to the first floor, and then install the vertical positioning puncher of the embedded parts for the building sewer main installation at the upper end of the embedded parts for the building sewer main installation; The vertical positioning punching machine for embedded parts for installing a building sewer pipe comprises a positioning column (22), a base plate (23), a fixing rod (24), a transmission box (26), an adjusting rod (27), a rack (28), a lower extension rod (29), a straightening locking device (30), an upper extension rod (31), an electric drill (32) and an electric drill switch (36). The fixing rod (24) is vertically fixed at the center of the base plate (23). The bottom of the base plate (23) is fixedly provided with a positioning column (22). The outer diameter of the positioning column (22) is the same as the inner diameter of the embedded part for installing a building sewer pipe. The upper end of the fixing rod (24) is fixedly provided with a transmission box (26). The cavity of the fixing rod (24) is provided with an adjusting rod (27). The outer wall of the adjusting rod (27) is fixedly provided with a rack (28). The adjusting rod (27) passes through a through hole in the middle of the transmission box (26). The rack (28) on the outer wall of the adjusting rod (27) The inner end of the crank handle (25) is fixedly connected to the gear in the transmission box (26), a lower extension rod (29) is provided in the cavity of the adjusting rod (27), an upper extension rod (31) is provided in the cavity of the lower extension rod (29), the adjusting rod (27) and the lower end of the lower extension rod (29) and the lower extension rod (29) and the upper extension rod (31) are respectively connected and fixed by a straightening locking device (30), and the upper extension rod (31) is connected and fixed by a straightening locking device (30). An electric drill (32) is fixedly provided at the upper end of the rod (31); the diameter of the drill bit (33) of the electric drill (32) is the same as the inner diameter of the center mark hole; an electric drill switch (36) of the electric drill (32) is fixedly provided on the outer wall of the fixing rod (24); the drill bit (33) of the electric drill (32) and the central axes of the positioning column (22), the fixing rod (24), the adjusting rod (27), the lower extension rod (29), and the upper extension rod (31) coincide with each other; During operation, the positioning column (22) is inserted into the upper opening of the embedded part for installing the building sewer pipe corresponding to the first floor, the upper extension rod (31) is pulled out from the lower extension rod (29), the lower extension rod (29) is pulled out from the adjustment rod (27), and they are locked and fixed with the corresponding righting locking devices (30), the crank (25) is turned, the adjustment rod (27) is driven to rise, so that the drill bit (33) of the electric drill (32) is pressed against the concave hole of the center projection mark, the electric drill (32) is started by the electric drill switch (36), and the crank 25 is slowly turned to drive the adjustment rod (27) again. ) is raised until the drill bit (33) of the electric drill (32) drills through the second layer of wooden template, thereby forming a circle center mark hole of the second layer of sewer pipe on the second layer of wooden template, and the crank (25) is rotated in the opposite direction to make the drill bit (33) of the electric drill (32) detach from the second layer of wooden template, and then the positioning column (22) is pulled out, and the vertical positioning punching machine of the embedded part for installing the building sewer pipe is put away; the cone head (17) of the cone rod is inserted into the hole at the rear end of the plastic expansion plug, lifted and inserted into the circle center mark hole of the second layer of sewer pipe, and the upper end of the plastic expansion plug is extended out of the upper panel of the second layer of wooden template; (IX) Construction workers find the plastic expansion plug on the upper panel of the second layer of wooden formwork, remove the plastic expansion plug, expose the center mark hole corresponding to that layer, and then follow steps (III) to (VIII) in sequence until the top layer of wooden formwork is reached.

2. The vertical positioning construction method of embedded parts for installing building sewer main pipes according to claim 1 is characterized in that: An upper inclined surface (14) and a lower inclined surface (15) are respectively provided at the upper and lower parts of the peripheral edge of the positioning disc (10) of the embedded component positioning seat.

3. The vertical positioning construction method of embedded parts for installing building sewer main pipes according to claim 1, characterized in that: In the step (seven), a marking ring is installed on the cone head (17) of the cone rod, and a white lime water mark is applied on the bottom panel of the second layer of wooden template around the center projection mark recess by using the marking ring; the marking ring is composed of an annular plate (18), a sponge ring (19) and a fixing block (20); the fixing block (20) is fixedly arranged on the side wall of the annular plate (18); a mounting hole (21) matching the cone head (17) of the cone rod is provided at the bottom of the fixing block (20); a sponge ring (19) is fixedly arranged on the upper part of the annular plate (18), and the sponge ring (19) is adsorbed with white lime water; when in use, the cone head (17) of the cone rod is inserted into the mounting hole (21) at the bottom of the fixing block (20), the marking ring is raised to the bottom panel of the second layer of wooden template, and a white lime water mark is applied around the center projection mark recess by using the sponge ring (19).

4. The vertical positioning construction method of embedded parts for installing building sewer main pipes according to claim 1, characterized in that: The straightening and locking device (30) is composed of a straightening sleeve (301) and a locking device; the locking device comprises a central axis (302), a wedge-shaped protrusion (303), a "C"-shaped snap ring (304), a mounting block (305) and a retaining edge (306); the retaining edges (306) are fixedly provided at the upper and lower ends of the central axis (302), the mounting block (305) is fixedly provided at the middle of the upper end of the central axis (302), the wedge-shaped protrusion (303) is fixedly provided on the outer wall of the central axis (302), the "C"-shaped snap ring (304) is sleeved on the outer wall of the central axis (302), and the "C"-shaped snap ring (304) The two free ends of the upper extension rod (31) are respectively fixed with inner protrusions (307); the locking device is arranged in the lower extension rod (29); the mounting block (305) is fixed in the lower end of the upper extension rod (31) by rivets; the diameter of the retaining edge (306) is the same as the diameter of the inner cavity of the lower extension rod (29); the middle part of the straightening sleeve (301) is provided with an insertion tube (308); the outer wall of the upper end of the straightening sleeve (301) is provided with an annular groove (309); the insertion tube (308) is inserted between the outer wall of the upper extension rod (31) and the inner wall of the lower extension rod (29); the annular groove (309) is sleeved on the upper edge of the lower extension rod (29).

5. The vertical positioning construction method of embedded parts for installation of building sewer main pipes according to claim 1, characterized in that: The lengths of the fixing rod (24), the adjusting rod (27), the lower extension rod (29) and the upper extension rod (31) are all 90 cm.

6. A vertical positioning punching machine for embedded parts for installing a building sewer main, comprising a positioning column (22), a base plate (23), a fixing rod (24), a transmission box (26), an adjustment rod (27), a rack (28), a lower extension rod (29), a righting locking device (30), an upper extension rod (31), an electric drill (32) and an electric drill switch (36), characterized in that: A fixing rod (24) is vertically fixed at the center of the bottom plate (23). A positioning column (22) is fixedly provided at the bottom of the bottom plate (23). The outer diameter of the positioning column (22) is the same as the inner diameter of the embedded part for installing the building sewer main pipe. A transmission box (26) is fixedly provided at the upper end of the fixing rod (24). An adjusting rod (27) is provided in the cavity of the fixing rod (24). A rack (28) is fixedly provided on the outer wall of the adjusting rod (27). The adjusting rod (27) passes through a through hole in the middle of the transmission box (26). The rack (28) on the outer wall of the adjusting rod (27) meshes with a gear in the transmission box (26) for transmission. The inner end of the crank (25) is fixedly connected to the gear in the transmission box (26). A lower extension rod (29) is provided in the cavity of the adjusting rod (27), and an upper extension rod (31) is provided in the cavity of the lower extension rod (29). The lower ends of the adjusting rod (27) and the lower extension rod (29) and the lower extension rod (29) and the upper extension rod (31) are connected and fixed via a straightening locking device (30), respectively. An electric drill (32) is fixedly provided at the upper end of the upper extension rod (31). An electric drill switch (36) of the electric drill (32) is fixedly provided on the outer wall of the fixing rod (24). The drill bit (33) of the electric drill (32) coincides with the central axes of the positioning column (22), the fixing rod (24), the adjusting rod (27), the lower extension rod (29), and the upper extension rod (31).

7. The vertical positioning punching machine for embedded parts for installation of building sewer main pipes according to claim 6, characterized in that: The straightening and locking device (30) is composed of a straightening sleeve (301) and a locking device; the locking device comprises a central axis (302), a wedge-shaped protrusion (303), a "C"-shaped snap ring (304), a mounting block (305) and a retaining edge (306); the retaining edges (306) are fixedly provided at the upper and lower ends of the central axis (302), the mounting block (305) is fixedly provided at the middle of the upper end of the central axis (302), the wedge-shaped protrusion (303) is fixedly provided on the outer wall of the central axis (302), the "C"-shaped snap ring (304) is sleeved on the outer wall of the central axis (302), and the "C"-shaped snap ring (304) The two free ends of the upper extension rod (31) are respectively fixed with inner protrusions (307); the locking device is arranged in the lower extension rod (29); the mounting block (305) is fixed in the lower end of the upper extension rod (31) by rivets; the diameter of the retaining edge (306) is the same as the diameter of the inner cavity of the lower extension rod (29); the middle part of the straightening sleeve (301) is provided with an insertion tube (308); the outer wall of the upper end of the straightening sleeve (301) is provided with an annular groove (309); the insertion tube (308) is inserted between the outer wall of the upper extension rod (31) and the inner wall of the lower extension rod (29); the annular groove (309) is sleeved on the upper edge of the lower extension rod (29).

8. The vertical positioning punching machine for embedded parts for installation of building sewer main pipes according to claim 6, characterized in that: The lengths of the fixing rod (24), the adjusting rod (27), the lower extension rod (29) and the upper extension rod (31) are all 90 cm.