Nodular cast iron pipeline installation clamp

Abstract

The utility model discloses a nodular cast iron pipeline installation clamp, which belongs to the technical field of nodular cast iron pipeline installation, and comprises a clamp structure and a rope structure for hoisting the clamp structure, the rope structure comprises a lifting rope and a hanging ring, and a plurality of elastic anti-disengaging units distributed on the side wall of the embedded column in a circular array mode are arranged on the side wall of the embedded column. Firstly, a nodular cast iron pipeline to be installed is clamped and fixed through a clamp structure, then after an embedded column connected to the end of a hoisting rope penetrates through a through hole in a movable hoisting ring and a through hole in a static hoisting ring, the end, away from the hoisting rope, of the embedded column penetrates into an inner cavity of a clamping and embedding cylinder; according to the nodular cast iron pipeline hoisting and mounting device, the elastic anti-falling unit arranged on the side wall of the embedded column is matched with the annular clamping groove in the side wall of the inner cavity of the clamping and embedding barrel to work, so that the embedded column can be quickly buckled and fixed in the clamping and embedding barrel, and then the hanging ring is hung on a hook of a crane, so that a constructor can conveniently hoist and mount the nodular cast iron pipeline.

Description

Technical Field

[0001] The present application relates to the technical field of ductile iron pipe installation, and more specifically, to a ductile iron pipe installation fixture. Background Art

[0002] Ductile iron pipes refer to pipes made by high-speed centrifugal casting of cast iron above No. 18 after adding spheroidizing agent, and are referred to as ductile iron pipes, ductile iron pipes and ductile iron pipes. They are mainly used for the transportation of tap water and are the ideal material for tap water pipes.

[0003] Currently, during the installation and construction of ductile iron pipes, in order to hoist the ductile iron pipes placed near the buried pipe trench into the buried pipe trench, construction workers are usually required to first wrap one end of the rope around the outer periphery of the middle part of the ductile iron pipe and tie it tightly, and then tie the other end of the rope to the hook of the crane, and then the crane slowly lifts the ductile iron pipe and hoists it into the buried pipe trench. When the construction workers complete the splicing and installation of the pipes, they finally slowly lower the ductile iron pipe to the bottom of the buried pipe trench.

[0004] However, in the process of fixing the ductile iron pipe by ropes and hoisting the pipe into the buried pipe trench for pipe installation, although it is convenient to hoist and install the ductile iron pipe, it is difficult to stably fix the pipe during the hoisting of the ductile iron pipe by ropes. The ductile iron pipe is at risk of slipping during the hoisting process, which affects the safety of the ductile iron pipe installation construction work and poses certain safety hazards. Summary of the invention

[0005] The purpose of the present application is to provide a ductile iron pipe installation fixture, which solves the technical problems raised in the above-mentioned background technology.

[0006] This application is implemented through the following technical solutions:

[0007] The technical solution of the present application provides a ductile iron pipe installation clamp, including a clamp structure and a rope structure for lifting the clamp structure; the rope structure includes a lifting rope and a hanging ring, one end of the lifting rope is connected to an embedded column, the other end of the lifting rope is connected to a hanging ring, and the side wall of the embedded column is provided with a plurality of elastic anti-detachment units arranged in a circular array on the side wall of the embedded column; the lifting rope is also connected to a base, and the base is rotatably connected to a clamping cylinder, and the side walls of the inner cavity of the clamping cylinder are evenly provided with a plurality of annular clamping grooves that have a limiting effect on the elastic anti-detachment units.

[0008] As an optional solution of the technical solution of the present application document, the elastic anti-slip unit includes a wedge-shaped clamp, one end of the wedge-shaped clamp is provided with a chamfered portion, and the other end is connected to a pressure spring; an upright limiting portion is also provided on the end of the wedge-shaped clamp facing the lifting rope.

[0009] As an optional solution to the technical solution of the present application document, a retraction groove adapted to the wedge-shaped clamp is provided on the side wall surface of the embedded column; the wedge-shaped clamp is slidably connected to the inside of the retraction groove, and one end of the pressure spring away from the wedge-shaped clamp is connected to the end of the retraction groove.

[0010] As an optional solution of the technical solution of the present application document, the inner cavity of the embedded tube is a cylindrical cavity, and the inner diameter of the embedded tube is equal to the outer diameter of the embedded column.

[0011] As an optional scheme of the technical scheme of the present application document, an end tail limit seat is also threadedly connected to the end of the embedded column away from the lifting rope, and an excitation cavity is provided inside the wall thickness of the end tail limit seat, and a switch assembly is provided in the excitation cavity, and the switch assembly includes a contact spring and a contact terminal arranged inside the excitation cavity, and the contact terminal is connected to the end of the excitation cavity away from the embedded column; an insulating top rod is connected to the end of the contact spring away from the contact terminal, and an insulating ring arranged inside the excitation cavity is sleeved on the outer periphery of the insulating top rod, and a reset spring is also sleeved on the outer periphery of the insulating top rod; an audible and visual alarm is connected to the side wall of the end tail limit seat, and a battery slot is provided at the end of the end tail limit seat away from the embedded column, and a battery is arranged in the battery slot, and a cover plate is detachably connected to the end of the end tail limit seat corresponding to the position of the battery slot.

[0012] As an optional solution of the technical solution of the present application document, one end of the return spring is connected to the insulating ring, and the other end is connected to the end of the excitation chamber.

[0013] As an optional solution of the technical solution of the present application document, one end of the insulating top rod away from the contact-guiding spring piece passes through the end of the end tail limit seat.

[0014] As an optional solution of the technical solution of the present application document, the switch assembly, the sound and light alarm and the battery are connected in series through a wire, and when the contact spring contacts the contact terminal, a loop is formed between the contact spring, the contact terminal, the sound and light alarm and the battery.

[0015] As an optional solution of the technical solution of the present application document, the clamp structure includes a suspension frame and a static clamp seat connected to the bottom of the suspension frame; a dynamic clamp seat is also provided under the suspension frame, a hydraulic cylinder is connected to the side wall of the dynamic clamp seat, and the end of the hydraulic cylinder away from the dynamic clamp seat is connected to the suspension frame; a horizontal and vertical slide groove is provided on the top of the suspension frame, a dynamic lifting ring slidably connected to the inside of the horizontal and vertical slide groove is connected to the top of the suspension frame, and the top of the dynamic lifting ring passes through the horizontal and vertical slide groove; a static lifting ring is connected to the top of the suspension frame at the position corresponding to the static clamp seat.

[0016] Compared with the existing technical solutions, this application has at least the following technical effects or advantages:

[0017] 1. When the ductile iron pipe is hoisted and installed, the present application first clamps and fixes the ductile iron pipe to be installed by a clamp structure, then passes the embedded column connected to the end of the hoisting rope through the through holes on the dynamic hoisting ring and the static hoisting ring respectively, and then inserts the end of the embedded column away from the hoisting rope into the inner cavity of the embedded cylinder; the elastic anti-slip unit provided on the side wall of the embedded column cooperates with the annular clamping groove on the side wall of the inner cavity of the embedded cylinder, so that the embedded column can be quickly buckled and fixed inside the embedded cylinder, and then the hanging ring is hung on the hook of the crane. This not only makes it convenient for construction personnel to hoist and install the ductile iron pipe, but also improves the firmness of the fixation of the ductile iron pipe during the hoisting process, prevents the pipe from slipping during hoisting, and enables the installation of the ductile iron pipe to be carried out safely.

[0018] 2. When the end of the embedded column away from the lifting rope passes into the embedded cylinder, the chamfered portion of the wedge-shaped clamping head faces the opening end of the inner cavity of the embedded cylinder. When the wedge-shaped clamping head continuously enters the inner cavity of the embedded cylinder, the wedge-shaped clamping head continuously slides into the retraction groove under the extrusion of the inner cavity side wall of the embedded cylinder. When the end of the embedded column away from the lifting rope passes out of the inner cavity of the embedded cylinder, the embedded column is pulled in the opposite direction by the lifting rope.

[0019] When the wedge-shaped clamping head is buckled into the annular clamping groove on the side wall of the inner cavity of the clamping tube, the embedded column inserted into the interior of the clamping tube can be buckled and fixed in the interior of the clamping tube under the blocking effect of the upright limiting part, and can only be inserted into the interior of the clamping tube in one direction but cannot be detached from the interior of the clamping tube in the reverse direction, thereby preventing the embedded column from detaching from the interior of the clamping tube during the lifting and installation of the ductile iron pipe, thereby improving the safety of the lifting and installation of the ductile iron pipe.

[0020] 3. When the device is used for a long time, the vertical limit part in the elastic anti-slip unit is damaged due to wear and other reasons, which affects the locking effect of the elastic anti-slip unit. When the fixture structure clamps the ductile iron pipe and the crane lifts the ductile iron pipe, the embedded column gradually slides out of the embedded tube. When the end limit seat threadedly connected to the end of the embedded column contacts the end of the embedded tube, the embedded column is restricted from sliding out of the embedded tube.

[0021] When the end limit seat gradually approaches the end of the embedded tube and the end of the insulating push rod contacts the end of the embedded tube, and the insulating push rod that continuously retracts into the excitation cavity drives the contact spring to contact the contact terminal, a circuit is formed among the contact spring, the contact terminal, the sound and light alarm and the battery, so that the sound and light alarm turns on and sends an alarm signal to the construction workers, reminding the staff to stay away from the construction area in time, and slowly lower the ductile iron pipe that is about to be installed, and replace the damaged rope structure in time, so as to further ensure the safety of the ductile iron pipe lifting and installation construction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of this application.

[0023] Figure 2 For this application Figure 1 A schematic diagram of the enlarged local structure of part A.

[0024] Figure 3 It is a schematic diagram of the structure of the embedded column in this application.

[0025] Figure 4 For this application Figure 2 A schematic diagram of the enlarged local structure of part B.

[0026] Figure 5 This is a schematic diagram of the structure of the end tail limit seat in this application.

[0027] Figure 6 This is a schematic diagram of the wedge-shaped clamp head in the present application when it is buckled into the annular clamping groove.

[0028] Explanation of the numbers in the figure: 1. Suspension bracket; 2. Dynamic clamp seat; 3. Static clamp seat; 4. Static lifting ring; 5. Dynamic lifting ring; 6. Hydraulic cylinder; 8. Hanging ring; 9. End limit seat; 10. Sound and light alarm; 11. Base; 12. Embedded tube; 13. Lifting rope; 14. Wedge-shaped clamp; 15. Embedded column; 17. Insulating push rod; 18. Battery; 19. Upright limit part; 20. Chamfered part; 21. Pressing spring; 22. Contact spring; 23. Contact terminal; 24. Reset spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0030] Reference Figures 1 to 3The embodiment of the present application provides a ductile iron pipe installation clamp, including a clamp structure and a rope structure for lifting the clamp structure; the rope structure includes a lifting rope 13 and a hanging ring 8, the lifting rope 13 is preferably a steel wire rope, one end of the lifting rope 13 is connected to an embedded column 15, the other end of the lifting rope 13 is connected to the hanging ring 8, and the side wall of the embedded column 15 is provided with a plurality of elastic anti-slip units arranged in a circular array on the side wall of the embedded column 15;

[0031] The lifting rope 13 is also connected to the base 11, and the base 11 is rotatably connected to the embedded cylinder 12. The side wall of the inner cavity of the embedded cylinder 12 is evenly provided with a plurality of annular grooves that have a limiting effect on the elastic anti-slip unit. The inner cavity of the embedded cylinder 12 is a cylindrical cavity, and the inner diameter of the embedded cylinder 12 is equal to the outer diameter of the embedded column 15.

[0032] Reference Figure 1 The embodiment of the present application provides a ductile iron pipe installation fixture, the fixture structure includes a suspension frame 1 and a static clamp seat 3 connected to the bottom of the suspension frame 1; a dynamic clamp seat 2 is also provided below the suspension frame 1, a hydraulic cylinder 6 is connected to the side wall of the dynamic clamp seat 2, and the end of the hydraulic cylinder 6 away from the dynamic clamp seat 2 is connected to the suspension frame 1;

[0033] A horizontal and vertical slide groove is opened at the top of the suspension frame 1, and a dynamic lifting ring 5 is connected to the top of the suspension frame 1 and is slidably connected to the inside of the horizontal and vertical slide groove, and the top of the dynamic lifting ring 5 passes through the horizontal and vertical slide groove; a static lifting ring 4 is connected to the top of the suspension frame 1 at a position corresponding to the static clamp seat 3.

[0034] When clamping the ductile iron pipe to be hoisted and installed, the dynamic clamp seat 2 and the static clamp seat 3 are placed on both sides of the pipe, and then the dynamic clamp seat 2 is driven by the hydraulic cylinder 6 to move toward the static clamp seat 3, thereby clamping and fixing the ductile iron pipe.

[0035] Reference Figures 2 to 4 The embodiment of the present application provides a ductile iron pipe installation fixture, wherein the elastic anti-slip unit comprises a wedge-shaped clamp 14, one end of which is provided with a chamfered portion 20, and the other end is connected with a pressure spring 21; an upright limit portion 19 is also provided on the end of the wedge-shaped clamp 14 facing the hoisting rope 13. A retraction groove matching the wedge-shaped clamp 14 is provided on the side wall surface of the embedded column 15; the wedge-shaped clamp 14 is slidably connected to the inside of the retraction groove, and the end of the pressure spring 21 away from the wedge-shaped clamp 14 is connected to the end of the retraction groove.

[0036] When the ductile iron pipe is hoisted and installed, the ductile iron pipe to be installed is first clamped and fixed by the clamp structure, and then the embedded column 15 connected to the end of the hoisting rope 13 is respectively passed through the through holes of the dynamic hoisting ring 5 and the static hoisting ring 4, and then the end of the embedded column 15 away from the hoisting rope 13 is passed into the inner cavity of the clamping tube 12;

[0037] The elastic anti-slip unit on the side wall of the embedded column 15 cooperates with the annular groove on the inner side wall of the embedded tube 12, so that the embedded column 15 can be quickly buckled and fixed inside the embedded tube 12, and then the hanging ring 8 is hung on the hook of the crane. This not only makes it convenient for construction workers to lift and install the ductile iron pipe, but also improves the firmness of the fixation of the ductile iron pipe during the lifting process, prevents the pipe from slipping during lifting, and ensures that the installation of the ductile iron pipe can be carried out safely.

[0038] When the end of the embedded column 15 away from the lifting rope 13 passes into the embedded cylinder 12, the chamfered portion 20 on the wedge-shaped clamping head 14 faces the open end of the inner cavity of the embedded cylinder 12. When the wedge-shaped clamping head 14 continuously enters the inner cavity of the embedded cylinder 12, the wedge-shaped clamping head 14 continuously slides into the retraction groove under the extrusion of the inner cavity side wall of the embedded cylinder 12. When the end of the embedded column 15 away from the lifting rope 13 passes out of the inner cavity of the embedded cylinder 12, the embedded column 15 is pulled in the opposite direction by the lifting rope 13.

[0039] When the wedge-shaped clamping head 14 is buckled into the annular clamping groove on the inner side wall of the inner cavity of the clamping tube 12, under the blocking effect of the upright limiting portion 19, the embedded column 15 inserted into the interior of the clamping tube 12 can be buckled and fixed in the interior of the clamping tube 12, and can only penetrate into the interior of the clamping tube 12 in one direction but cannot detach from the interior of the clamping tube 12 in the reverse direction, thereby preventing the embedded column 15 from detaching from the interior of the clamping tube 12 during the lifting and installation of the ductile iron pipe, thereby improving the safety of the lifting and installation of the ductile iron pipe.

[0040] Reference Figure 3 and Figure 4 The embodiment of the present application provides a ductile iron pipe installation fixture, wherein an end stopper seat 9 is threadedly connected to one end of the embedded column 15 away from the lifting rope 13, an excitation cavity is provided inside the wall thickness of the end stopper seat 9, a switch assembly is provided in the excitation cavity, the switch assembly includes a contact spring 22 and a contact terminal 23 arranged inside the excitation cavity, and the contact terminal 23 is connected to the end of the excitation cavity away from the embedded column 15;

[0041] An insulating top rod 17 is connected to one end of the contact spring 22 away from the contact terminal 23. An insulating ring disposed inside the excitation cavity is sleeved on the outer periphery of the insulating top rod 17. A reset spring 24 is also sleeved on the outer periphery of the insulating top rod 17. The reset spring 24 does not contact the insulating top rod 17.

[0042] An audible and visual alarm 10 is connected to the side wall of the end and tail limit seat 9. A battery slot is provided at the end of the end and tail limit seat 9 away from the embedded column 15. A battery 18 is provided in the battery slot. A cover plate is installed at the end of the end and tail limit seat 9 and the position corresponding to the battery slot. The detachable connection method here includes a threaded connection or a snap connection.

[0043] One end of the reset spring 24 is connected to the insulating ring, and the other end is connected to the end of the excitation chamber. The end of the insulating top rod 17 away from the contact-guiding spring 22 passes through the end of the end stop seat 9. The switch assembly, the sound and light alarm 10 and the battery 18 are connected in series through a wire, and when the contact-guiding spring 22 contacts the contact terminal 23, a loop is formed between the contact-guiding spring 22, the contact terminal 23, the sound and light alarm 10 and the battery 18.

[0044] When the device is used for a long time, the upright limit portion 19 in the elastic anti-detachment unit is damaged due to wear and other reasons, which affects the locking effect of the elastic anti-detachment unit, when the clamp structure clamps the ductile iron pipe and the crane lifts the ductile iron pipe, the embedded column 15 gradually slides out from the inside of the clamping tube 12;

[0045] When the end limit seat 9 threadedly connected to the end of the embedded column 15 contacts the end of the embedded tube 12, it limits the embedded column 15 from further sliding out of the embedded tube 12, and when the end limit seat 9 gradually approaches the end of the embedded tube 12 and the end of the insulating top rod 17 contacts the end of the embedded tube 12, the insulating top rod 17 that continuously retracts into the excitation cavity drives the contact spring 22 to contact the contact terminal 23; a loop is formed among the contact spring 22, the contact terminal 23, the sound and light alarm 10 and the battery 18, so that the sound and light alarm 10 is turned on and sends an alarm signal to the construction workers, reminding the staff to stay away from the construction area in time, and slowly lower the ductile iron pipe that is about to be installed, and replace the damaged rope structure in time, so as to further ensure the safety of the ductile iron pipe lifting and installation construction work.

Claims

1. A ductile iron pipe installation fixture, characterized in that: It includes a clamp structure and a rope structure for lifting the clamp structure; The rope structure comprises a lifting rope (13) and a hanging ring (8); one end of the lifting rope (13) is connected to an embedded column (15); the other end of the lifting rope (13) is connected to the hanging ring (8); a plurality of elastic anti-slip units arranged in a circular array on the side wall of the embedded column (15); The lifting rope (13) is also connected to a base (11), and a clamping cylinder (12) is rotatably connected to the base (11). The side walls of the inner cavity of the clamping cylinder (12) are evenly provided with a plurality of annular clamping grooves that have a limiting effect on the elastic anti-slip unit.

2. The ductile iron pipe installation fixture according to claim 1 is characterized in that: The elastic anti-slip unit comprises a wedge-shaped clamp (14), one end of the wedge-shaped clamp (14) is provided with a chamfered portion (20), and the other end is connected to a pressure spring (21); An upright limiting portion (19) is also provided on one end of the wedge-shaped clamping head (14) facing the hoisting rope (13).

3. The ductile iron pipe installation fixture according to claim 2 is characterized in that: The side wall surface of the embedded column (15) is provided with a retraction groove adapted to the wedge-shaped clamp (14); The wedge-shaped clamp (14) is slidably connected to the inside of the retraction groove, and one end of the pressure spring (21) away from the wedge-shaped clamp (14) is connected to the end of the retraction groove.

4. The ductile iron pipe installation fixture according to claim 1, characterized in that: The inner cavity of the embedding cylinder (12) is a cylindrical cavity, and the inner diameter of the embedding cylinder (12) is equal to the outer diameter of the embedded column (15).

5. The ductile iron pipe installation fixture according to claim 1, characterized in that: An end stopper seat (9) is also threadedly connected to the end of the embedded column (15) away from the lifting rope (13); an excitation cavity is provided inside the wall thickness of the end stopper seat (9); a switch assembly is provided in the excitation cavity; the switch assembly includes a contact-guiding spring sheet (22) and a contact-guiding terminal (23) arranged inside the excitation cavity; and the contact-guiding terminal (23) is connected to the end of the excitation cavity away from the embedded column (15); An insulating top rod (17) is connected to one end of the contact-conducting spring sheet (22) away from the contact-conducting terminal (23); an insulating ring arranged inside the excitation cavity is sleeved on the outer circumference of the insulating top rod (17); and a reset spring (24) is also sleeved on the outer circumference of the insulating top rod (17); An audible and visual alarm (10) is connected to the side wall of the end and tail limit seat (9); a battery slot is provided at one end of the end and tail limit seat (9) away from the embedded column (15); a battery (18) is provided in the battery slot; and a cover plate is detachably connected and installed at the end of the end and tail limit seat (9) corresponding to the position of the battery slot.

6. The ductile iron pipe installation fixture according to claim 5, characterized in that: One end of the return spring (24) is connected to the insulating ring, and the other end is connected to the end of the excitation chamber.

7. The ductile iron pipe installation fixture according to claim 5, characterized in that: One end of the insulating top rod (17) away from the contact-guiding spring sheet (22) passes through the end of the end-tail limiting seat (9).

8. The ductile iron pipe installation fixture according to claim 5, characterized in that: The switch assembly, the sound and light alarm (10) and the battery (18) are connected in series via a wire, and when the contact spring (22) contacts the contact terminal (23), a loop is formed between the contact spring (22), the contact terminal (23), the sound and light alarm (10) and the battery (18).

9. The ductile iron pipe installation fixture according to claim 1, characterized in that: The clamp structure comprises a suspension frame (1) and a static clamp seat (3) connected to the bottom of the suspension frame (1); A dynamic clamp seat (2) is also provided below the suspension frame (1), a hydraulic cylinder (6) is connected to the side wall of the dynamic clamp seat (2), and one end of the hydraulic cylinder (6) away from the dynamic clamp seat (2) is connected to the suspension frame (1); The top of the suspension frame (1) is provided with a horizontal and vertical slide groove, the top of the suspension frame (1) is connected with a movable lifting ring (5) which is slidably connected to the inside of the horizontal and vertical slide groove, and the top end of the movable lifting ring (5) passes through the horizontal and vertical slide groove; A static suspension ring (4) is connected to the top of the suspension frame (1) at a position corresponding to the position of the static clamp seat (3).

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