Building construction pipe fitting lifting appliance

Abstract

The utility model discloses a building construction pipe fitting lifting appliance which comprises a longitudinal connecting rod, an outer wall enclasping assembly and an inner wall pressing assembly, the outer wall enclasping assembly comprises an outer wall enclasping arm, the outer wall enclasping arm is obliquely arranged, the upper end of the outer wall enclasping arm is hinged to the longitudinal connecting rod, and an outer wall enclasping block is fixed to the lower end of the outer wall enclasping arm; the inner wall pressing assembly comprises an inner wall pressing arm, the inner wall pressing arm is obliquely arranged, the lower end of the inner wall pressing arm is hinged to the longitudinal connecting rod, and an inner wall pressing block is fixed to the upper end of the inner wall pressing arm; a double-arm linkage assembly is arranged on the longitudinal connecting rod and is configured to drive the outer wall holding arm and the inner wall pressing arm to rotate synchronously. The lifting appliance has the remarkable effects that the end part of the pipe fitting can be effectively and stably clamped through the adjustment of the self structure change, and the lifting appliance can be manually and quickly disassembled, assembled and loosened without relying on other matched devices, so that the efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a device for hoisting various large pipe fittings during the construction process. Background Art

[0002] During the construction process, it is necessary to hoist pipes such as steel casings and well pipes. These pipes need to keep the pipe centerline in a vertical state during the hoisting operation to ensure that the pipes are smoothly lowered as required. The commonly used hoist is a clamp type, which is tightened by multiple bolts to hold one end of the pipe. The installation and disassembly of this clamp type hoist is time-consuming and labor-intensive. Later, someone proposed an internal support pipe hoist, which uses multiple radial telescopic rods controlled by a hydraulic device to tighten the inner wall of the pipe from the inside. Although this method can improve efficiency and reduce labor intensity to a certain extent, it is not easy to configure a constantly moving hydraulic station at the construction site; and because it is a one-way tightening on the inside, the one-way pressure on the pipe wall is relatively large, which is relatively unfavorable for concrete downpipes, and the pipe wall may be broken due to excessive tightening pressure on the inside. Utility Model Content

[0003] In order to solve the technical problem of inconvenient assembly and disassembly of pipe hangers, the utility model provides a pipe hanger that can be quickly assembled and disassembled manually and tightened. It does not need to rely on other matching devices, and its own structure can effectively and stably clamp the pipe. The technical solution is as follows:

[0004] A construction pipe hanging device, the main points of which are: comprising a longitudinal connecting rod and an outer wall clamping assembly and an inner wall pressing assembly connected to the longitudinal connecting rod, wherein the outer wall clamping assembly is located above the inner wall pressing assembly;

[0005] The outer wall clamping assembly comprises at least two outer wall clamping arms, all of which are arranged around the longitudinal connecting rod, the outer wall clamping arms are arranged obliquely, the upper ends of the outer wall clamping arms are hinged to the longitudinal connecting rod, and the lower ends of the outer wall clamping arms are fixed with outer wall clamping blocks;

[0006] The inner wall pressing assembly comprises at least two inner wall pressing arms, all of which are arranged around the longitudinal connecting rod, the inner wall pressing arms are arranged obliquely, the lower ends of the inner wall pressing arms are hinged to the longitudinal connecting rod, and the upper ends of the inner wall pressing arms are fixed with inner wall pressing blocks;

[0007] All the inner wall pressing blocks form an inner wall pressing portion of the pipe fitting, and all the outer wall clamping blocks form an outer wall clamping portion of the pipe fitting, and an annular pipe wall clamping area is formed between the inner wall pressing portion of the pipe fitting and the outer wall clamping portion of the pipe fitting;

[0008] A double-arm linkage assembly is provided on the longitudinal connecting rod, and the double-arm linkage assembly is configured to drive the outer wall clamping arm and the inner wall pressing arm to rotate synchronously. The outer wall clamping arm and the inner wall pressing arm rotate upward or downward simultaneously in the vertical plane; the pipe wall clamping area is enlarged or reduced with the synchronous rotation of the outer wall clamping arm and the inner wall pressing arm. The double-arm linkage assembly is also configured to lock the rotation state of the outer wall clamping arm and the inner wall pressing arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 It is a structural schematic diagram of the linkage seat 41;

[0011] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 4 It is a schematic cross-sectional structure diagram of the linkage seat 41;

[0013] Figure 5 It is a schematic diagram of the clamping relationship between the hanger and the well pipe of the utility model. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with embodiments and drawings.

[0015] like Figure 1-Figure 4 As shown, a construction pipe hanging device comprises a longitudinal connecting rod 1 and an outer wall clamping assembly 2 and an inner wall clamping assembly 3 connected to the longitudinal connecting rod 1, wherein the outer wall clamping assembly 2 is located above the inner wall clamping assembly 3;

[0016] The outer wall holding assembly 2 comprises at least two outer wall holding arms 21, all of which are arranged around the longitudinal connecting rod 1, and the outer wall holding arms 21 are arranged obliquely, and the upper end of the longitudinal connecting rod 1 is provided with an upper hinge seat, and the upper end of the outer wall holding arm 21 is hinged to the upper hinge seat at the upper end of the longitudinal connecting rod 1 through a rotating shaft, and the outer wall holding arm 21 can only rotate in a vertical plane around the rotating shaft at its upper end, and the lower end of the outer wall holding arm 21 is fixed with an outer wall holding block 22, and the outer wall holding block 22 extends longitudinally downward;

[0017] The inner wall pressing assembly 3 includes at least two inner wall pressing arms 31, all of which are arranged around the longitudinal connecting rod 1, and the inner wall pressing arms 31 are arranged obliquely, and the lower end of the longitudinal connecting rod 1 is provided with a lower hinge seat, and the lower end of the inner wall pressing arm 31 is hinged to the lower hinge seat at the lower end of the longitudinal connecting rod 1 through a rotating shaft, and the inner wall pressing arm 31 can only rotate in a vertical plane around the rotating shaft at its lower end, and the upper end of the inner wall pressing arm 31 is fixed with an inner wall pressing block 32;

[0018] All the inner wall pressing blocks 31 form the inner wall pressing part of the pipe fitting, and all the outer wall clamping blocks 21 form the outer wall clamping part of the pipe fitting. An annular pipe wall clamping area is formed between the inner wall pressing part of the pipe fitting and the outer wall clamping part of the pipe fitting; Figure 5 It can be seen that the pipe wall at the upper end of the pipe fitting (well pipe) is located in the pipe wall clamping area;

[0019] A double-arm linkage assembly 4 is provided on the longitudinal connecting rod 1, and the double-arm linkage assembly 4 is configured to drive the outer wall clamping arm 21 and the inner wall pressing arm 31 to rotate upward or downward simultaneously in the vertical plane; the pipe wall clamping area is enlarged or reduced with the synchronous rotation of the outer wall clamping arm 21 and the inner wall pressing arm 31. In order to clamp or loosen the pipe wall at the upper end of the pipe fitting (well pipe),

[0020] A specific implementation of a double-arm linkage assembly 4 may be: the double-arm linkage assembly 4 includes a linkage seat 41, a clamping drive connecting rod 42, and a pressing drive connecting rod 43;

[0021] The linkage seat 41 is configured to move longitudinally along the length direction of the longitudinal connecting rod 1 and can be locked in a relative position with the longitudinal connecting rod 1;

[0022] The clamping drive link 42 and the clamping drive link 43 are both arranged obliquely, the clamping drive link 42 corresponds one-to-one with the outer wall clamping arm 21, the lower end of the clamping drive link 42 is hinged to the linkage seat 41 through a rotating shaft, the upper end of the clamping drive link 42 is hinged to the outer wall clamping arm 21 through a rotating shaft, the clamping drive link 43 corresponds one-to-one with the inner wall clamping arm 31, the upper end of the clamping drive link 43 is hinged to the linkage seat 41 through a rotating shaft, and the lower end of the clamping drive link 42 is hinged to the inner wall clamping arm 31 through a rotating shaft.

[0023] A specific configuration relationship between the linkage seat 41 and the longitudinal connecting rod 1 is: the linkage seat 41 includes a linkage seat body 411, the linkage seat body 411 is threadedly sleeved on the longitudinal connecting rod 1, and the linkage seat body 411 moves longitudinally along the length direction of the longitudinal connecting rod 1 by rotating the thread and can lock the relative position with the longitudinal connecting rod 1;

[0024] Two annular grooves are provided on the outer wall of the linkage seat body 411, the center lines of the annular grooves coincide with the center lines of the longitudinal connecting rod 1, and the two annular grooves are longitudinally arranged along the length direction of the longitudinal connecting rod 1. Two linkage rings 412 are mounted on the linkage seat body 411, and the two linkage rings 412 are also longitudinally arranged along the length direction of the longitudinal connecting rod 1, and the center lines of the linkage rings 412 also coincide with the center lines of the longitudinal connecting rod 1. The linkage rings 412 correspond to the annular grooves one by one, and the linkage rings 412 are movably assembled in the annular grooves, so that the linkage rings 412 are configured to be axially fixed and circumferentially rotatable; the lower end of the clamping drive connecting rod 42 is hinged to the linkage ring 412 located above, and the upper end of the pressing drive connecting rod 43 is hinged to the linkage ring 412 located below. In order to facilitate the assembly of the linkage rings 412 and the annular grooves, the linkage seat body 411 can be set as a split structure. At this time, the linkage seat body 411 is manually rotated to move to a suitable position along the length direction of the longitudinal connecting rod 1, so that the outer wall clamping arm 21 and the inner wall pressing arm 31 can be tightly attached to the outer and inner walls of the pipe fitting.

[0025] In order to rotate the linkage seat body 411 more conveniently and labor-savingly, a rotating handle 413 is provided on the outer wall of the linkage seat body 411 between the two linkage rings 412.

[0026] Friction plates are provided on the inner wall of the outer wall clamping block 22 and the outer wall of the inner wall pressing block 32 respectively. The friction plates are in close contact with the pipe wall to increase friction and avoid crushing the pipe wall.

[0027] A preferred embodiment is: the outer wall clamping assembly 2 includes at least three outer wall clamping arms 21, all of which are evenly arranged around the longitudinal connecting rod 1; the inner wall clamping assembly 3 includes at least three inner wall clamping arms 31, all of which are evenly arranged around the longitudinal connecting rod 1; and the outer wall clamping blocks 22 and the inner wall clamping blocks 32 are arranged one by one, and the outer wall clamping blocks 22 and the corresponding inner wall clamping blocks 32 are relatively close or far away along the same radial direction. In this way, the inner and outer sides of the same position of the pipe wall can be stressed, avoiding the pipe wall of some special material pipes from being damaged due to unilateral pressure.

[0028] Furthermore, all the outer wall clamping arms 21 are provided with lifting ears 23 for crane lifting operations, and the lifting ears 23 are close to the upper ends of the outer wall clamping arms 21 .

[0029] Beneficial effect: The technical solution of the utility model can effectively and stably clamp the end of the pipe through its own structural changes, and can realize manual rapid disassembly and assembly, and tightening of the sling without relying on other supporting devices, thereby improving efficiency and reducing labor intensity.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A pipe hanger for construction, characterized in that: It comprises a longitudinal connecting rod (1), and an outer wall clamping assembly (2) and an inner wall clamping assembly (3) connected to the longitudinal connecting rod (1), wherein the outer wall clamping assembly (2) is located above the inner wall clamping assembly (3); The outer wall clamping assembly (2) comprises at least two outer wall clamping arms (21), all of the outer wall clamping arms (21) are arranged around the longitudinal connecting rod (1), the outer wall clamping arms (21) are arranged obliquely, the upper ends of the outer wall clamping arms (21) are hinged to the longitudinal connecting rod (1), and the lower ends of the outer wall clamping arms (21) are fixed with outer wall clamping blocks (22); The inner wall pressing assembly (3) comprises at least two inner wall pressing arms (31), all of the inner wall pressing arms (31) are arranged around the longitudinal connecting rod (1), the inner wall pressing arms (31) are arranged obliquely, the lower ends of the inner wall pressing arms (31) are hinged to the longitudinal connecting rod (1), and the upper ends of the inner wall pressing arms (31) are fixed with inner wall pressing blocks (32); A double-arm linkage assembly (4) is provided on the longitudinal connecting rod (1), and the double-arm linkage assembly (4) is configured to drive the outer wall clamping arm (21) and the inner wall pressing arm (31) to rotate synchronously.

2. A construction pipe hanger according to claim 1, characterized in that: The double-arm linkage assembly (4) comprises a linkage seat (41), a clamping drive connecting rod (42), and a pressing drive connecting rod (43); The linkage seat (41) is configured to move longitudinally along the length direction of the longitudinal connecting rod (1), and the clamping drive link (42) and the clamping drive link (43) are both inclined. The lower end of the clamping drive link (42) is hinged to the linkage seat (41), the upper end of the clamping drive link (42) is hinged to the outer wall clamping arm (21), the upper end of the clamping drive link (43) is hinged to the linkage seat (41), and the lower end of the clamping drive link (42) is hinged to the inner wall clamping arm (31).

3. A pipe hanger for construction according to claim 2, characterized in that: The linkage seat (41) comprises a linkage seat body (411), and the linkage seat body (411) is threadedly sleeved on the longitudinal connecting rod (1); Two linkage rings (412) are mounted on the linkage seat body (411), the two linkage rings (412) are longitudinally arranged along the length direction of the longitudinal connecting rod (1), the center line of the linkage ring (412) coincides with the center line of the longitudinal connecting rod (1), and the linkage ring (412) is configured to be axially fixed and circumferentially rotatable; The lower end of the clamping drive connecting rod (42) is hinged to the linkage ring (412) located above, and the upper end of the pressing drive connecting rod (43) is hinged to the linkage ring (412) located below.

4. A pipe hanger for construction according to claim 3, characterized in that: A rotating handle (413) is provided on the outer wall of the linkage seat body (411) between the two linkage rings (412).

5. A pipe hanger for construction according to claim 1, 2, 3 or 4, characterized in that: Friction plates are respectively provided on the inner wall of the outer wall clamping block (22) and the outer wall of the inner wall pressing block (32).

6. A pipe hanger for construction according to claim 1, 2, 3 or 4, characterized in that: A lifting lug (23) is provided on all the outer wall clamping arms (21), and the lifting lug (23) is close to the upper end of the outer wall clamping arm (21).

7. A pipe hanger for construction according to claim 1, 2, 3 or 4, characterized in that: The outer wall clamping block (22) and the inner wall pressing block (32) are arranged opposite to each other, and the outer wall clamping block (22) and the corresponding inner wall pressing block (32) are relatively close to or far away from each other along the same radial direction.

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