CN210307633U - Double-screw rod driven socket joint connecting device for nodular cast iron pipe - Google Patents

Double-screw rod driven socket joint connecting device for nodular cast iron pipe Download PDF

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Publication number
CN210307633U
CN210307633U CN201920879770.6U CN201920879770U CN210307633U CN 210307633 U CN210307633 U CN 210307633U CN 201920879770 U CN201920879770 U CN 201920879770U CN 210307633 U CN210307633 U CN 210307633U
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China
Prior art keywords
screw rod
screw
cast iron
pipe
nodular cast
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Application number
CN201920879770.6U
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Chinese (zh)
Inventor
杨天伦
张雁
胡仁勇
尹程
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Chongqing Hechuan Tap Water Co ltd
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Chongqing Hechuan Tap Water Co ltd
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Abstract

The utility model discloses a bell and spigot joint device of a double-screw driven nodular cast iron pipe, which relates to a mounting tool for bell and spigot joint of cast iron pipes, and is characterized in that two hoops are arranged, one hoop is connected to a pipe socket of one nodular cast iron pipe, the other hoop is connected to a pipe plug of the other nodular cast iron pipe, two screw rods are respectively arranged at two sides of the two hoops, and the two screw rods are parallel to each other; the two ends of the screw rod are respectively sleeved with a screw rod nut, the upper outer side and the lower outer side of the screw rod nut are fixedly provided with screw rod nut positioning pins, and the middle part of the screw rod is provided with a rotary connecting port for driving the screw rod. The device has the advantages of reasonable structure, small structure, convenient use, small working pit, easy socket connection, good effect, no damage to the sealing of the rubber ring and the pipe socket head and the pipe plug, and is particularly used for the maintenance and the rush repair of a nodular cast iron pipe network, more convenient and economic, and has popularization value.

Description

Double-screw rod driven socket joint connecting device for nodular cast iron pipe
Technical Field
The utility model relates to the mounting tool that cast iron pipe socket joint is connected, more specifically involve a two lead screw drive nodular cast iron pipe socket joint connecting device.
Background
Ductile iron pipe is one kind of cast iron pipe. The standard executed by nodular cast iron pipes, pipe fittings and accessories for water and gas pipelines in China is GB/T13295-. At present, the ductile cast iron pipes have various connector types, and most water supply pipelines of the ductile cast iron pipes on the market are connected in a socket joint mode through socket joints. One end of the socket-connected nodular cast iron pipe is a pipe socket head, the other end of the socket-connected nodular cast iron pipe is a pipe plug, and a rubber sealing ring is arranged in the pipe socket head. Although the nodular cast iron pipe with the socket joint is the first choice of the water supply pipe and has high cost performance, the nodular cast iron pipe and the pipe fitting are difficult to install when in socket joint connection, special installation tools and emergency repair tools are lacked, and a common hand-operated block is used for traction or is assisted by an excavator. When the manual hoist is adopted for traction, unilateral stress is easy to occur, the socket joint connection effect is seriously influenced, and especially, the pipe fittings such as a bent pipe and the like are more difficult to install; the ductile cast iron pipe and the pipe fitting are connected in a socket joint manner by adopting the assistance of a digging machine, and special conditions and a larger working pit are required; during emergency repair, because special mounting tools and emergency repair tools are lacked, the nodular cast iron pipes and the pipe fittings are more difficult to socket and connect. Therefore, a new socket joint connecting tool for the nodular cast iron pipe needs to be explored, and a double-screw rod driving socket joint connecting device for the nodular cast iron pipe is developed.
Disclosure of Invention
The utility model aims at: provides a double-screw rod driven socket joint connecting device for nodular cast iron pipes.
The technical scheme of the utility model is that: a bell and spigot joint device of a double-screw-rod-driven nodular cast iron pipe is characterized in that two hoops are arranged, one hoop is connected to a pipe socket head of one nodular cast iron pipe, the other hoop is connected to a pipe plug of the other nodular cast iron pipe, two screw rods are respectively arranged on two sides of the two hoops, and the two screw rods are parallel to each other; the two ends of the screw rod are both provided with threads, one end of the screw rod is a straight thread, the other end of the screw rod is a reverse thread, screw rod nuts are respectively sleeved at the two ends of the screw rod, screw rod nut positioning pins are fixedly arranged at the upper outer side and the lower outer side of each screw rod nut, and a screw rod rotation connecting port is arranged in the middle of the screw rod; screw nut positioning pin seats are arranged at two sides of the waist part of the hoop; the screw nut on one screw is positioned on the screw nut positioning pin seat beside the hoop, and the screw nut on the other screw is positioned on the screw nut positioning pin seat beside the other hoop.
The double-screw rod driving nodular cast iron pipe socket joint connecting device is characterized in that the rotary connecting port of the driving screw rod is a wrench connecting port.
The rotary connecting port of the driving screw rod of the double-screw rod driving nodular cast iron pipe socket connecting device can also be a driven chain wheel, and ball bearings are arranged on two sides of the driven chain wheel.
The double-screw rod driving nodular cast iron pipe socket joint connecting device is characterized in that a driving screw rod rotating connecting port of the double-screw rod driving nodular cast iron pipe socket joint connecting device is provided with a wrench connecting port and a driven chain wheel, and ball bearings are arranged on two sides of the driven chain wheel.
The optimized double-screw rod driven socket connection device for the nodular cast iron pipes is characterized in that the length of the screw rod is 650 mm, the lengths of threads at two ends of the screw rod are 150 mm, the nominal diameter of the threads is 35 mm, and the threads are trapezoidal threads; the wrench connecting port is a regular hexagonal cylinder, and the lead screw nut positioning pin is a metal cylinder; the lead screw nut positioning pin bases are two metal blocks, U-shaped grooves are formed in the metal blocks, the lead screw nuts are placed between the two metal blocks, and the lead screw nut positioning pins are clamped in the U-shaped grooves; the hoop is an open hoop and is provided with a locking bolt and a hinge; and a rubber sealing ring is arranged in the pipe socket head.
The utility model discloses a two lead screw drive nodular cast-iron pipe socket joint connecting device, the size of its staple bolt should with the external diameter size phase-match of pipe cap and pipe plug. Conditional units may reserve different sizes of hoops.
The utility model discloses a use method of two lead screw drive nodular cast-iron pipe socket joint connecting device: the utility model discloses a pair of lead screw drive nodular cast-iron pipe connecting device mainly used nodular cast-iron pipe and the socket joint of pipe fitting are connected, have two kinds of application methods, first insert the use, be about to insert the pipe socket head of a nodular cast-iron pipe or the pipe fitting's of pipe fitting into another nodular cast-iron pipe's pipe socket head or pipe fitting's pipe socket head; and secondly, the pipe fitting is used separately, namely two inserted ductile cast iron pipes or pipe fittings are separated. When the positioning device is used, firstly, the size of the hoop is selected according to the outer diameter of the nodular cast iron pipe or pipe fitting, one of the two selected hoops is arranged on the pipe socket head of one pipe, the other hoop is arranged on the pipe plug of the other pipe, a screw nut is arranged at each end of each screw rod, the screw nuts are placed on the screw nut positioning pin bases, and the screw nut positioning pin bases are clamped in the U-shaped grooves of the screw nut positioning pin bases; synchronously driving the two screw rods to rotate towards one direction, and driving the pipe bearing head and the pipe plug to approach by the hoop to finish insertion; in a similar way, the two screw rods are synchronously driven to rotate towards the other direction, and the hoop drives the pipe bearing head and the pipe plug to be separated, so that separation is completed.
When the pipe network maintenance of nodular cast-iron pipe, salvage, because the utility model discloses a two lead screw drive nodular cast-iron pipe socket joint connecting device structure is small and exquisite, and the work hole that needs is little, and convenient to use, the maintenance of favourable nodular cast-iron pipe and pipe fitting, salvage practices thrift maintenance, salvage time and cost greatly. The utility model provides a special tool for the maintenance and the rush repair of a pipe network of a ductile cast iron pipe. The utility model discloses also provide a special mounting tool for the installation of the pipe network of nodular cast-iron pipe.
The utility model discloses a two lead screw drive nodular cast-iron pipe socket joint connecting device's theory of operation: the two identical lead screws are parallelly installed on two sides of the outer sides of the two hoops, the lead screw nut is positioned on the lead screw nut positioning pin base, the two lead screws are synchronously driven to rotate in the same direction by a wrench or a chain, the lead screw nut clamped on the lead screw nut positioning pin base is not rotated, a lead screw nut positioning pin on the lead screw nut drives the two hoops to be close to or separate from each other, one hoop is clamped on a pipe socket of one pipe, the other hoop is clamped on a pipe plug of the other pipe, the two hoops are close to or separate from each other, and socket connection of the two nodular cast iron pipes or pipe fittings is completed.
The lead screw nuts are placed between the two metal blocks, and the lead screw nut positioning pins are clamped in the U-shaped grooves, so that the lead screw nuts cannot rotate along with the lead screws, and when the lead screw nut positioning pins are stressed, the lead screw nut positioning pins can slightly swing in the U-shaped grooves of the lead screw nut positioning pin seats, and the lead screw nut positioning pins are beneficial to uniform force transmission of the two lead screws.
The utility model has the advantages that: the utility model discloses a two lead screw drive nodular cast-iron pipe socket joint connecting device, it is rational in infrastructure to have, and the structure is small and exquisite, convenient to use, the work hole is little, and the socket joint is connected very easily, and is effectual, does not damage the rubber circle sealed, does not damage pipe cap and pipe plug, especially is used for the maintenance of nodular cast-iron pipe network, salvagees, and is more convenient, and economy has spreading value.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
the labels in the figure are: the device comprises a screw rod 1, a ball bearing 2, a driving screw rod rotary connector 3, a screw rod nut 4, a screw rod nut positioning pin 5, a pipe plug 6, a rubber sealing ring 7, a pipe bearing head 8, a hoop 9, a locking bolt 10, a screw rod nut positioning pin seat 11 and a hinge 12.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
Referring to fig. 1, 2 and 3, the bell and spigot joint device for the double-screw driving nodular cast iron pipe comprises two hoops 9, wherein one hoop 9 is connected to a pipe socket 8 of one nodular cast iron pipe, the other hoop 9 is connected to a pipe plug 6 of the other nodular cast iron pipe, two screw rods 1 are respectively arranged at two sides of the two hoops 9, and the two screw rods 1 are parallel to each other; the screw rod 1 is provided with threads at two ends, one end of the thread is a straight thread, the other end of the thread is a reverse thread, screw rod nuts 4 are respectively sleeved at two ends of the screw rod 1, screw rod nut positioning pins 5 are fixedly arranged at the upper outer side and the lower outer side of the screw rod nuts 4, and a screw rod driving rotary connecting port 3 is arranged in the middle of the screw rod 1; screw nut positioning pin bosses 11 are arranged at two sides of the waist of the hoop 9; the screw nut 4 on one screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9, and the screw nut 4 on the other screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9.
Example 2
Referring to fig. 1, 2 and 3, the bell and spigot joint device for the double-screw driving nodular cast iron pipe comprises two hoops 9, wherein one hoop 9 is connected to a pipe socket 8 of one nodular cast iron pipe, the other hoop 9 is connected to a pipe plug 6 of the other nodular cast iron pipe, two screw rods 1 are respectively arranged at two sides of the two hoops 9, and the two screw rods 1 are parallel to each other; the screw rod 1 is provided with threads at two ends, one end of the thread is a straight thread, the other end of the thread is a reverse thread, screw rod nuts 4 are respectively sleeved at two ends of the screw rod 1, screw rod nut positioning pins 5 are fixedly arranged at the upper outer side and the lower outer side of the screw rod nuts 4, and a screw rod driving rotary connecting port 3 is arranged in the middle of the screw rod 1; screw nut positioning pin bosses 11 are arranged at two sides of the waist of the hoop 9; the screw nut 4 on one screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9, and the screw nut 4 on the other screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9. The driving screw rod rotary connecting port 3 can be a wrench connecting port. Two wrenches are clamped on the wrench connecting opening, and the wrenches are synchronously rotated in the same direction, so that the socket connection of the nodular cast iron pipe or the pipe fitting is realized.
Example 3
Referring to fig. 1, 2 and 3, the bell and spigot joint device for the double-screw driving nodular cast iron pipe comprises two hoops 9, wherein one hoop 9 is connected to a pipe socket 8 of one nodular cast iron pipe, the other hoop 9 is connected to a pipe plug 6 of the other nodular cast iron pipe, two screw rods 1 are respectively arranged at two sides of the two hoops 9, and the two screw rods 1 are parallel to each other; the screw rod 1 is provided with threads at two ends, one end of the thread is a straight thread, the other end of the thread is a reverse thread, screw rod nuts 4 are respectively sleeved at two ends of the screw rod 1, screw rod nut positioning pins 5 are fixedly arranged at the upper outer side and the lower outer side of the screw rod nuts 4, and a screw rod driving rotary connecting port 3 is arranged in the middle of the screw rod 1; screw nut positioning pin bosses 11 are arranged at two sides of the waist of the hoop 9; the screw nut 4 on one screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9, and the screw nut 4 on the other screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9. And a driven chain wheel is fixedly connected to the driving screw rod rotary connecting port 3, and ball bearings 2 are arranged on two sides of the driven chain wheel. The driven chain wheel is synchronously driven by the chain in the same direction to rotate, so that the socket connection of the nodular cast iron pipe or the pipe fitting is realized. The ball bearings 2 provided on both sides of the driven sprocket are for mounting the chain drive.
Example 4
Referring to fig. 1, 2 and 3, the bell and spigot joint device for the double-screw driving nodular cast iron pipe comprises two hoops 9, wherein one hoop 9 is connected to a pipe socket 8 of one nodular cast iron pipe, the other hoop 9 is connected to a pipe plug 6 of the other nodular cast iron pipe, two screw rods 1 are respectively arranged at two sides of the two hoops 9, and the two screw rods 1 are parallel to each other; the screw rod 1 is provided with threads at two ends, one end of the thread is a straight thread, the other end of the thread is a reverse thread, screw rod nuts 4 are respectively sleeved at two ends of the screw rod 1, screw rod nut positioning pins 5 are fixedly arranged at the upper outer side and the lower outer side of the screw rod nuts 4, and a screw rod driving rotary connecting port 3 is arranged in the middle of the screw rod 1; screw nut positioning pin bosses 11 are arranged at two sides of the waist of the hoop 9; the screw nut 4 on one screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9, and the screw nut 4 on the other screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9. The driving screw rod rotating connecting port 3 is provided with a wrench connecting port and a driven chain wheel, two wrenches are clamped on the wrench connecting port, and the wrenches are synchronously rotated in the same direction to realize socket joint connection of the nodular cast iron pipe or the pipe fitting; the chain is used for synchronously and equidirectionally driving the driven chain wheel to rotate, and the socket joint connection of the nodular cast iron pipe or the pipe fitting can also be realized. The ball bearings 2 provided on both sides of the driven sprocket are for mounting the chain drive to the ball bearings 2.
Example 5
Referring to fig. 1, 2 and 3, the bell and spigot joint device for the double-screw driving nodular cast iron pipe comprises two hoops 9, wherein one hoop 9 is connected to a pipe socket 8 of one nodular cast iron pipe, the other hoop 9 is connected to a pipe plug 6 of the other nodular cast iron pipe, two screw rods 1 are respectively arranged at two sides of the two hoops 9, and the two screw rods 1 are parallel to each other; the screw rod 1 is provided with threads at two ends, one end of the thread is a straight thread, the other end of the thread is a reverse thread, screw rod nuts 4 are respectively sleeved at two ends of the screw rod 1, screw rod nut positioning pins 5 are fixedly arranged at the upper outer side and the lower outer side of the screw rod nuts 4, and a screw rod driving rotary connecting port 3 is arranged in the middle of the screw rod 1; screw nut positioning pin bosses 11 are arranged at two sides of the waist of the hoop 9; the screw nut 4 on one screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9, and the screw nut 4 on the other screw 1 is positioned on the screw nut positioning pin base 11 beside the hoop 9. The driving screw rod rotating connecting port 3 is provided with a wrench connecting port and a driven chain wheel, two wrenches are clamped on the wrench connecting port, and the wrenches are synchronously rotated in the same direction to realize socket joint connection of the nodular cast iron pipe or the pipe fitting; the chain is used for synchronously and equidirectionally driving the driven chain wheel to rotate, and the socket joint connection of the nodular cast iron pipe or the pipe fitting can also be realized. Ball bearings 2 are provided on both sides of the driven sprocket in order to mount the chain drive on the ball bearings 2. The length of the screw rod 1 is 650 mm, the length of the threads at two ends of the screw rod is 150 mm, the nominal diameter of the threads is 35 mm, and the threads are trapezoidal threads; the wrench connecting port is a regular hexagonal cylinder, and the lead screw nut positioning pin 5 is a metal cylinder; the length of the screw rod 1 is 650 mm, the length of the threads at two ends of the screw rod is 150 mm, the nominal diameter of the threads is 35 mm, and the threads are trapezoidal threads; the wrench connecting port is a regular hexagonal cylinder, and the lead screw nut positioning pin 5 is a metal cylinder; the lead screw nut positioning pin bases 11 are two metal blocks, U-shaped grooves are formed in the metal blocks, the lead screw nuts 4 are placed between the two metal blocks, and the lead screw nut positioning pins 5 are clamped in the U-shaped grooves; the hoop 9 is an open hoop and is provided with a locking bolt 10 and a hinge 12; and a rubber sealing ring 7 is arranged in the pipe socket head 8. The lead screw nuts 4 are placed between the two metal blocks, and the lead screw nut positioning pins 5 are clamped in the U-shaped grooves, so that the lead screw nuts 4 cannot rotate along with the lead screws 1, and when the lead screw nut positioning pins 5 are stressed, the lead screw nut positioning pins 5 can slightly swing in the U-shaped grooves of the lead screw nut positioning pin bases 11, and the two lead screws 1 can uniformly transfer force.

Claims (5)

1. A double-screw rod driven socket joint connecting device for nodular cast iron pipes is characterized in that two anchor ears (9), one anchor ear (9) is connected to a pipe socket head (8) of one nodular cast iron pipe, the other anchor ear (9) is connected to a pipe plug (6) of the other nodular cast iron pipe, two screw rods (1) are respectively arranged on two sides of the two anchor ears (9), and the two screw rods (1) are parallel to each other; the screw rod (1) is provided with threads at two ends, one end of the thread is a straight thread, the other end of the thread is a reverse thread, screw rod nuts (4) are respectively sleeved at two ends of the screw rod (1), screw rod nut positioning pins (5) are fixedly arranged at the upper outer side and the lower outer side of each screw rod nut (4), and a screw rod rotation connecting port (3) is arranged in the middle of the screw rod (1); screw nut positioning pin seats (11) are arranged at two sides of the waist part of the hoop (9); the screw rod nut (4) on one screw rod (1) is positioned on the screw rod nut positioning pin base (11) beside the hoop (9), and the screw rod nut (4) on the other screw rod (1) is positioned on the screw rod nut positioning pin base (11) beside the other hoop (9).
2. The bell and spigot joint device for the ductile cast iron pipe driven by the double screw rods as claimed in claim 1, wherein the rotary connecting port (3) of the driving screw rod is a wrench connecting port.
3. The bell and spigot joint device for the ductile cast iron pipe driven by the double screw as claimed in claim 1, wherein said rotary connecting port (3) of the driving screw is a driven sprocket, and ball bearings (2) are provided on both sides of the driven sprocket.
4. The bell and spigot joint device for the double-screw driving ductile cast iron pipe as claimed in claim 3, wherein a wrench connecting port is further provided beside the driven sprocket.
5. The bell and spigot joint device for the double-screw driven nodular cast iron pipe according to claim 4, wherein the length of the screw rod (1) is 650 mm, the length of the screw threads at both ends of the screw rod is 150 mm, the nominal diameter of the screw threads is 35 mm, and the screw threads are trapezoidal screw threads; the wrench connecting port is a regular hexagonal cylinder, and the lead screw nut positioning pin (5) is a metal cylinder; the lead screw nut positioning pin bases (11) are two metal blocks, U-shaped grooves are formed in the metal blocks, the lead screw nuts (4) are placed between the two metal blocks, and the lead screw nut positioning pins (5) are clamped in the U-shaped grooves; the hoop (9) is an open hoop and is provided with a locking bolt (10) and a hinge (12); and a rubber sealing ring (7) is arranged in the pipe socket head (8).
CN201920879770.6U 2019-06-12 2019-06-12 Double-screw rod driven socket joint connecting device for nodular cast iron pipe Active CN210307633U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920879770.6U CN210307633U (en) 2019-06-12 2019-06-12 Double-screw rod driven socket joint connecting device for nodular cast iron pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920879770.6U CN210307633U (en) 2019-06-12 2019-06-12 Double-screw rod driven socket joint connecting device for nodular cast iron pipe

Publications (1)

Publication Number Publication Date
CN210307633U true CN210307633U (en) 2020-04-14

Family

ID=70143488

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920879770.6U Active CN210307633U (en) 2019-06-12 2019-06-12 Double-screw rod driven socket joint connecting device for nodular cast iron pipe

Country Status (1)

Country Link
CN (1) CN210307633U (en)

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