CN212655334U

CN212655334U - Novel pipe fitting stone tongs

Info

Publication number: CN212655334U
Application number: CN202021159473.3U
Authority: CN
Inventors: 李素珍; 李德志; 杨坤; 陈运杰; 孙琪
Original assignee: Liaoning Mingyang Pipe Industry Co ltd
Current assignee: Liaoning Mingyang Pipe Industry Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-03-05
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a novel pipe fitting stone tongs for the handling pipe fitting. The lifting device comprises a lifting hook and a lifting arm, wherein the lifting arm comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the second connecting rod and the third connecting rod are rotatably connected with the first connecting rod, the fourth connecting rod is rotatably connected with the third connecting rod, the lifting hook is rotatably connected with the upper end of the first connecting rod and the upper end of the third connecting rod, and the second connecting rod and the fourth connecting rod are rotatably and fixedly connected to enable the upper half part of the lifting arm to form a diamond shape and the lower half part of the; the pipe diameter adjusting part is arranged between the second connecting rod and the fourth connecting rod and used for adjusting the clamping diameter of the pipe. The pipe diameter adjusting part comprises two semicircular large clamping plates which are oppositely arranged, each large clamping plate is at least provided with a moving rod which penetrates through the large clamping plates from outside to inside, the end part of one end of the inner side of each moving rod is provided with a small clamping plate, and the outer surface of each moving rod is provided with a thread and a limiting nut. Novel structure, reasonable in design, application range are wide, the flexibility is strong, can satisfy the reliable centre gripping of the pipe fitting of different diameters.

Description

Novel pipe fitting stone tongs

Technical Field

The utility model relates to a pipe fitting stone tongs technical field especially relates to a stone tongs that can be according to different pipe fitting diameter automatically regulated.

Background

In the process of tubular part processing, the handling just can be after the anchor clamps need to be used usually to tubular part centre gripping fixed, however, the current frock that is used for the pipe fitting centre gripping can't be adjusted according to the diameter automation that the pipe fitting is different, and application range receives the restriction, and the flexibility is relatively poor. Meanwhile, in the prior art, the clamp and the tubular part are not reliably clamped, so that the tubular part is displaced in the moving process, even falls in case of serious conditions, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can adjust just safe and reliable's pipe fitting stone tongs to fixture according to different diameter pipe fittings.

The utility model adopts the technical proposal that: a novel pipe fitting hoisting clamp comprises a lifting hook and a lifting arm, wherein the lifting arm comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the upper end of the second connecting rod is rotatably connected with the lower end of the first connecting rod, the upper end of the fourth connecting rod is rotatably connected with the lower end of the third connecting rod, the lifting hook is rotatably connected with the upper end of the first connecting rod and the upper end of the third connecting rod, and the second connecting rod and the fourth connecting rod are rotatably and fixedly connected to enable the upper half part of the lifting arm to form a diamond shape and the lower half part of the lifting; the pipe diameter adjusting part is arranged between the second connecting rod and the fourth connecting rod and used for adjusting the clamping diameter of the pipe.

The utility model discloses a pipe fitting stone tongs's a preferred embodiment is, pipe diameter adjustment part includes two mutual disposition's the big cardboard of semicircular, every set up the pole that moves that one outside-in passed big cardboard on the big cardboard at least, move the inboard one end tip of pole and be equipped with little cardboard, move the surface of pole and be equipped with the screw thread, be equipped with stop nut moving the inboard that the pole is located big cardboard.

The utility model discloses a pipe fitting stone tongs's an preferred embodiment is, every set up two on the big cardboard and move the pole.

The utility model discloses a preferred embodiment of pipe fitting stone tongs be move inboard one end tip of pole and be equipped with little cardboard.

Further, a rubber layer is arranged on the surface of each small clamping plate.

The utility model discloses pipe fitting stone tongs's an preferred embodiment is, sets up the back shaft in the outside of every big cardboard, and second connecting rod lower extreme and fourth connecting rod lower extreme are connected with the back shaft respectively.

The utility model discloses a pipe fitting stone tongs's an preferred embodiment is, is equipped with between lifting hook and davit and hangs the piece.

The utility model discloses a pipe fitting stone tongs's an preferred embodiment is, still including setting up the locking mechanism that both sides are used for locking two big cardboards about the pipe diameter adjusting part respectively.

Furthermore, the locking mechanism comprises a locking plate which is arranged in the middle of one end of the large clamping plate at one side and provided with a U-shaped notch, and a rotatable locking rod which is arranged at one end of the large clamping plate at the other side.

The utility model has the advantages that: the suspension arm structure of the pipe fitting hoisting clamp is that the upper half part forms a diamond shape and the lower half part forms a semi-ring shape, so that the clamp can automatically tighten and maintain the clamping force on a steel pipe when the steel pipe is hoisted. The pipe diameter adjusting part can adjust the clamping diameter to adapt to the hoisting requirements of pipelines with different diameters. The locking mechanism used for locking the large clamping plate is arranged on the pipe diameter adjusting part, so that the clamp is more reliable and firm in the hoisting process. The friction force can be increased by the inner rubber layer, and the pipe fitting is effectively prevented from being moved and damaged in the moving process. The utility model discloses novel structure, reasonable in design, application range are wide, the flexibility is strong, can satisfy the reliable centre gripping of the pipe fitting of different diameters.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a perspective schematic view of an embodiment of a pipe clamp hoist;

FIG. 2 is a schematic front view of one embodiment of a pipe clamp hoist;

fig. 3 is a left side view of fig. 2.

The reference numbers in the figures denote: 1-lifting hook, 2-lifting block, 4-lifting arm, 41-first connecting rod, 42-second connecting rod, 43-third connecting rod, 44-fourth connecting rod, 5-supporting rod, 6-pipe diameter adjusting component, 61-big clamping plate, 62-small clamping plate, 63-moving rod, 64-limiting nut, 7-locking mechanism, 71-locking plate, 72-locking rod, 10-rubber layer and 11-supporting shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the novel pipe fitting lifting clamp includes a lifting hook 1 and a lifting arm 4, the lifting arm 4 includes a first link 41, a second link 42 with an upper end rotatably connected to a lower end of the first link 41, a third link 43, and a fourth link 44 with an upper end rotatably connected to a lower end of the third link 43, the upper end of the first link 41 is fixedly connected to the third link 43, the lifting hook 1 is rotatably connected to a connecting portion of the upper end of the first link 41 and the third link 43, and the lifting hook 1 can be directly connected to the lifting arm 4 or can be connected to the lifting block 2. The second link 42 and the fourth link 44 are fixedly connected in a rotating way, so that the upper half part of the suspension arm 4 forms a diamond shape and the lower half part forms a semi-ring shape, and the structure can enable the clamp to automatically tighten and maintain the clamping force on the steel pipe when the steel pipe is lifted.

The pipe fitting hoisting clamp further comprises a pipe diameter adjusting part 6 arranged between the second connecting rod 42 and the fourth connecting rod 44 and used for adjusting the clamping diameter of a pipeline, the pipe diameter adjusting part 6 comprises two semicircular large clamping plates 61 which are arranged oppositely, each large clamping plate 61 is at least provided with a moving rod 63 which penetrates through the large clamping plate 61 from outside to inside, one end part of the inner side of each moving rod 63 is provided with a small clamping plate 62, the outer surface of each moving rod 63 is provided with threads, a limiting nut 64 is arranged on the inner side, located on the large clamping plate 61, of each moving rod 63, the nut 64 and the threads on the outer surface of each moving rod 63 are matched to move on the moving rods, and in the preferred embodiment, two moving rods 63 are arranged on each large. A support shaft 11 may be provided outside each large chuck plate 61, and the lower ends of the second link 42 and the fourth link 44 are respectively connected to the support shaft 11.

The end part of one end of the inner side of the moving rod 63 can be provided with a small clamping plate 62, the surface of each small clamping plate 62 can be provided with a rubber layer 10, and the rubber layers are glued with the small clamping plates.

The pipe diameter adjusting device can further comprise locking mechanisms 7 which are respectively arranged on the upper side and the lower side of the pipe diameter adjusting part 6 and used for locking the two large clamping plates, a locking machine 7 comprises a locking plate 71 and a rotatable locking rod 72, the locking plate 71 is provided with a U-shaped notch in the middle of one end of one large clamping plate, the rotatable locking rod 72 is arranged at one end of the other large clamping plate, when the pipe diameter adjusting device is used, the locking rod 72 is rotated to enable the locking rod to enter the U-shaped notch of the locking plate 71, and nuts on the locking rod are.

When centre gripping pipe fitting, pass through wire rope with lifting hook 1 with move the equipment of carrying and be connected, open big cardboard 6, the amount of movement of moving pole 8 is decided according to the diameter size of pipe fitting, because the shape of cardboard all is the arc, can laminate the surface of pipe fitting, so can guarantee that little cardboard firmly grasps the pipe fitting, avoid moving the in-process appearance and rock and even come off etc. and have dangerous circumstances quite, the inboard rubber layer of little cardboard also plays the effect of increase friction power, it is fixed with the pipe fitting, guarantee the smooth safe completion of removal of pipe fitting.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims

1. A novel pipe fitting hoisting clamp comprises a lifting hook (1) and a lifting arm (4), and is characterized in that the lifting arm (4) comprises a first connecting rod (41), a second connecting rod (42) with the upper end rotatably connected with the lower end of the first connecting rod (41), a third connecting rod (43) and a fourth connecting rod (44) with the upper end rotatably connected with the lower end of the third connecting rod (43), the lifting hook (1) is rotatably connected with the upper end of the first connecting rod (41) and the upper end of the third connecting rod (43), and the upper half part of the lifting arm (4) forms a rhombus and the lower half part of the lifting arm forms a semi-ring through the rotatable and fixed connection of the second connecting rod (42) and the fourth connecting rod (44); and a pipe diameter adjusting part (6) which is arranged between the second connecting rod (42) and the fourth connecting rod (44) and is used for adjusting the clamping diameter of the pipe.

2. The pipe hoisting clamp according to claim 1, wherein the pipe diameter adjusting member (6) comprises two opposite semicircular large clamping plates (61), each large clamping plate (61) is provided with at least one moving rod (63) penetrating through the large clamping plate (61) from outside to inside, one end of the inner side of the moving rod (63) is provided with a small clamping plate (62), the outer surface of the moving rod (63) is provided with threads, and the moving rod (63) is provided with a limit nut (64) at the inner side of the large clamping plate (61).

3. A tubular handling clamp according to claim 2, characterized in that two moving bars (63) are provided on each large clamp plate (61).

4. A pipe lifting clamp according to claim 2 or 3, characterized in that a small clamping plate (62) is arranged at one end of the inner side of the moving rod (63).

5. A tubular pipe lifting clamp according to claim 4, characterized in that a rubber layer (10) is provided on the surface of each small clamping plate (62).

6. Pipe lifting clamp according to claim 2 or 3, characterized in that a support shaft (11) is provided outside each large clamping plate (61), and the lower ends of the second link (42) and the fourth link (44) are respectively connected with the support shaft (11).

7. Pipe lifting clamp according to claim 1, characterized in that a lifting block (2) is provided between the lifting hook (1) and the lifting arm (4).

8. The pipe fitting hoisting clamp according to claim 2, further comprising locking mechanisms (7) respectively arranged at the upper and lower sides of the pipe diameter adjusting part (6) for locking the two large clamping plates.

9. A pipe hoisting clamp according to claim 8, wherein said locking mechanism (7) comprises a locking plate (71) having a U-shaped notch at the middle of one end of the large clamping plate on one side and a rotatable locking bar (72) at one end of the large clamping plate on the other side.