CN109577637B

CN109577637B - Tool type scaffold wall connecting piece

Info

Publication number: CN109577637B
Application number: CN201811483026.0A
Authority: CN
Inventors: 邓秀英; 李建国; 邵峰; 樊晶晶; 张雪龙
Original assignee: Shanxi Eighth Construction Group Co Ltd
Current assignee: Shanxi Eighth Construction Group Co Ltd
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2020-11-13
Anticipated expiration: 2038-12-05
Also published as: CN109577637A

Abstract

The invention relates to the technical field of wall connecting pieces, in particular to a tool type scaffold wall connecting piece, and aims to solve the technical problems that the existing wall connecting piece is high in installation precision requirement and cannot adaptively adjust the verticality of a scaffold. The telescopic scaffold is provided with the screw and the sleeve, and the screw can be stretched in the sleeve through the rotation of the sleeve, so that the adjustment of the distance between the scaffold and a wall body is completed, and the verticality of the scaffold can be adaptively adjusted; the ratchet and pawl mechanism is arranged, the pawl consists of a first half pawl and a second half pawl, and the structure is further provided with a jacking block related structure, the jacking action of the jacking block enables the first half pawl or the second half pawl to be meshed with the ratchet, so that the rotation adjustment of the rotating head relative to the base is realized, the height angle adjustment of a screw rod, a sleeve and a connector of the screw rod is further realized, the installation position of the scaffold and the installation position of the wall body are not on the same horizontal plane, and the installation precision requirement of the wall connecting piece is reduced.

Description

Tool type scaffold wall connecting piece

Technical Field

The invention relates to the technical field related to wall connecting pieces, in particular to a tool type scaffold wall connecting piece.

Background

The wall connecting member generally means a member for reinforcing stability of other structures by being connected to a reliable fixing end (e.g., a wall, etc.), and a member for connecting a scaffold body to a building main structure in a construction work, which can transmit a tensile force and/or a compressive force. The wall attachment connection realized by the wall connecting piece plays an important role in strengthening the overall stability of the scaffold, improving the stable bearing capacity of the scaffold and avoiding major accidents such as toppling or collapse. The existing wall connecting piece mainly has two wall connecting piece structures, one is to adopt thin steel bars, ropes and double-strand or multi-strand iron wires for tie, the structure can only bear tension and only play a role in preventing the scaffold from outwards inclining, and the structure does not have a role in preventing the scaffold from inwards inclining, namely, the structure has little help on the stability (namely, the stable bearing capacity) of the scaffold; the other type is a wall connecting piece formed by rigid pull rods or members such as steel pipes, fasteners or embedded parts, the structure is a rigid wall connecting piece which can bear tension and pressure, but the wall connecting piece has high precision requirement on the installation position and is inconvenient to install, the upper part or the lower part of the scaffold can incline along with the lengthening of the service time of the scaffold, and the adaptability of the scaffold can not be adjusted at the moment, so that the verticality of the scaffold is guaranteed.

Disclosure of Invention

The invention aims to solve the technical problems that the existing wall connecting piece is high in installation precision requirement and cannot be used for adaptively adjusting the vertical degree of a scaffold. Therefore, the invention provides a tool type scaffold wall connecting piece.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a tool type scaffold wall connecting piece comprises a connector, wherein a connecting hole for hinging a scaffold is formed in the connector; the connecting head is characterized by further comprising a thrust ball bearing, a shaft ring of the thrust ball bearing is sleeved on the connecting head in an interference manner, a seat ring of the thrust ball bearing is sleeved with a sleeve in an interference manner, a threaded section is arranged on the inner wall of one end, away from the thrust ball bearing, of the sleeve, a screw rod is screwed in the threaded section, a locking screw is screwed in the wall, corresponding to the threaded section, of the sleeve, a rotating head is fixedly connected to one end, located outside the sleeve, of the screw rod, a positioning rod penetrates through the gap of the rotating head, and two ends of the positioning rod; the wall body is characterized by further comprising a base fixed on the wall body, the base is provided with two end plates distributed in parallel, two ends of the positioning rod are provided with threads, and two ends of the positioning rod respectively penetrate through the two end plates and then are locked through bolts; the rotating head comprises a barrel-shaped shell fixedly connected with the screw rod, the axis of the barrel-shaped shell is perpendicular to the screw rod and parallel to the positioning rod, a fixed shaft, a rotating shaft, a pawl and a ratchet wheel are arranged inside the barrel-shaped shell, the fixed shaft and the rotating shaft are both arranged on the barrel-shaped shell and perpendicular to the barrel bottom, the pawl consists of a first half pawl and a second half pawl which are symmetrically arranged, the first half pawl and the second half pawl form a V-shaped structure, the vertex of the V-shaped structure is rotatably arranged on the fixed shaft, ratchets with opposite tooth directions are arranged at two ends of the V-shaped structure, and the ratchet wheel is fixed in the middle of the positioning rod; the rotating shaft is located between the first half pawl and the second half pawl, a top block is radially and outwards protruded on the side wall of the end portion, far away from the barrel bottom, of the rotating shaft, the top block is abutted to the first half pawl to achieve separation of the first half pawl and the ratchet wheel and meshing of the second half pawl and the ratchet wheel, or the top block is abutted to the second half pawl to achieve separation of the second half pawl and the ratchet wheel and meshing of the first half pawl and the ratchet wheel, and therefore the bidirectional ratchet mechanism is formed.

During the use, at first with the base installation on the wall body, will rotate the head and assemble together with the base again to screw up the bolt at end plate both ends, make the locating lever fixed, then assemble screw rod, sleeve and connector, articulate the connector and scaffold frame and accomplish the installation together finally. During installation, two kinds of adaptability adjustment can be carried out: firstly, screwing a sleeve, rotating the sleeve relative to a connector under the action of a thrust ball bearing, simultaneously stretching a screw rod in the sleeve to a proper position, and locking the sleeve by a locking screw to complete the distance adjustment between the scaffold and a wall body; and secondly, rotating the rotating shaft to enable the jacking block to abut against the first half pawl or the second half pawl to realize two states of separation of the first half pawl from the ratchet wheel, engagement of the second half pawl with the ratchet wheel, separation of the second half pawl from the ratchet wheel and engagement of the first half pawl with the ratchet wheel, and rotation of the pawl around the ratchet wheel in different directions in the two states, so that upward or downward adjustment of the wall connecting piece around the positioning rod is realized, and finally installation of the wall connecting piece is realized. When even wall spare installation, according to the rotation pivot of even wall spare required pivoted direction adaptability, transfer the kicking block to suitable position to realize clockwise or anticlockwise rotation, nevertheless because the scaffold frame is toppled over anyhow, even wall spare always will be around the locating lever downstream, so when the position determination back, need adjust the kicking block once more, confirm its butt on can realize even wall spare and can not the downstream half pawl round the locating lever upward movement, at this moment even wall spare can be fixed firm with the scaffold frame. After the connection is finished, if the scaffold is inclined, the angle and the length of the wall connecting piece can be adjusted simultaneously to finally adjust the vertical degree of the scaffold.

The invention has the beneficial effects that: the invention provides a tool type scaffold wall connecting piece which is provided with a screw rod and a sleeve, wherein the screw rod can be stretched in the sleeve through the rotation of the sleeve, so that the length of the wall connecting piece is adjusted, and the adjustment of the distance between a scaffold and a wall is further completed; the wall connecting piece is provided with a bidirectional ratchet mechanism consisting of a ratchet wheel and a pawl, the pawl consists of a first half pawl and a second half pawl, and a structure related to a jacking block is also arranged, so that the first half pawl or the second half pawl can be meshed with the ratchet wheel through the jacking action of the jacking block, the angle of the wall connecting piece is adjusted, the wall connecting piece can be installed even if the installation positions of a scaffold and a wall are not on the same horizontal plane, and the installation precision requirement of the wall connecting piece is reduced; the length adjustment and the angle adjustment of the wall connecting piece can jointly complete the adjustment of the vertical degree of the scaffold; in addition, after the connection is finished, due to the arrangement of the ratchet wheel, the reverse rotation preventing and timely locking functions are achieved, and the connection between the scaffold and the wall is more reliable.

Drawings

FIG. 1 is a schematic view of the installation structure of the wall connecting member of the present invention;

fig. 2 is a schematic structural diagram of the rotating head and related structures of the present invention.

Detailed Description

Referring to fig. 1 to 2, the tool type scaffold wall connecting piece of the present invention includes a connector 1, wherein the connector 1 is provided with a connecting hole 2 for hinging a scaffold; the connecting device is characterized by further comprising a thrust ball bearing, a shaft ring of the thrust ball bearing is sleeved on the connecting head 1 in an interference manner, a seat ring of the thrust ball bearing is sleeved with a sleeve 3 in an interference manner, a threaded section is arranged on the inner wall of one end, away from the thrust ball bearing, of the sleeve 3, a screw rod 4 is screwed in the threaded section, a locking screw 5 is screwed in the wall, corresponding to the threaded section, of the sleeve 3, a rotating head 6 is fixedly connected to one end, located outside the sleeve 3, of the screw rod 4, a positioning rod 7 penetrates through the gap of the rotating head 6, and two ends of the positioning rod; the wall body is characterized by further comprising a base 8 fixed on the wall body, the base 8 is provided with two end plates 8-1 which are distributed in parallel, threads are arranged at two ends of the positioning rod 7, and two ends of the positioning rod 7 penetrate through the two end plates 8-1 respectively and are locked through bolts; the rotating head part 6 comprises a barrel-shaped shell 6-1 fixedly connected with the screw rod 4, the axis of the barrel-shaped shell 6-1 is perpendicular to the screw rod 4 and parallel to the positioning rod 7, a fixed shaft 6-2, a rotating shaft 6-3, a pawl 6-4 and a ratchet 6-5 are arranged inside the barrel-shaped shell 6-1, the fixed shaft 6-2 and the rotating shaft 6-3 are both arranged on the barrel-shaped shell 6-1 and perpendicular to the barrel bottom, the pawl 6-4 is composed of a first half pawl 6-4-1 and a second half pawl 6-4-2 which are symmetrically arranged, the first half pawl 6-4-1 and the second half pawl 6-4-2 form a V-shaped structure, the vertex of the V-shaped structure is rotatably arranged on the fixed shaft 6-2, Ratchets with opposite tooth directions are arranged at the two ends of the positioning rod, and the ratchet wheels 6-5 are fixed in the middle of the positioning rod 7; the rotating shaft 6-3 is positioned between the first half pawl 6-4-1 and the second half pawl 6-4-2, a top block 6-3-1 is radially and outwards protruded on the side wall of the end part, far away from the barrel bottom, of the rotating shaft 6-3, the top block 6-3-1 is abutted against the first half pawl 6-4-1 to realize that the first half pawl 6-4-1 is separated from the ratchet 6-5, the second half pawl 6-4-2 is meshed with the ratchet 6-5, or the top block 6-3-1 is abutted against the second half pawl 6-4-2 to realize that the second half pawl 6-4-2 is separated from the ratchet 6-5, and the first half pawl 6-4-1 is meshed with the ratchet 6-5, so that a bidirectional ratchet mechanism is formed. When the scaffold is used, the base 8 is installed on a wall body, the rotating head 6 and the base 8 are assembled together, bolts at two ends of the end plate 8-1 are screwed down to fix the positioning rod 7, the screw rod 4, the sleeve 3 and the connector 1 are assembled, and finally the connector 1 and a scaffold are hinged together to complete installation. During installation, two kinds of adaptability adjustment can be carried out: firstly, screwing a sleeve 3, rotating the sleeve 3 relative to a connector 1 under the action of a thrust ball bearing, simultaneously stretching a screw rod 4 in the sleeve 3 to a proper position, and locking through a locking screw 5 to complete the distance adjustment between the scaffold and a wall body; and secondly, rotating the rotating shaft 6-3 to enable the top block 6-3-1 to abut against the first half pawl 6-4-1 or the second half pawl 6-4-2, so that two states of disengaging the first half pawl 6-4-1 from the ratchet 6-5, meshing the second half pawl 6-4-2 with the ratchet 6-5, disengaging the second half pawl 6-4-2 from the ratchet 6-5 and meshing the first half pawl 6-4-1 with the ratchet 6-5 are realized, and the two states can realize rotation of the pawl 6-4 around the ratchet 6-5 in different directions. In actual operation, once the length of the wall connecting piece is fixed, no matter how the scaffold rotates relative to the wall, the wall connecting piece rotates downwards around the positioning rod 7, namely, anticlockwise in the figure. The first half pawl 6-4-1, the second half pawl 6-4-2 and the ratchet wheel form a bidirectional ratchet wheel mechanism together, when the angle of the wall connecting piece needs to be adjusted, the top block 6-3-1 is abutted against the first half pawl 6-4-1 or the second half pawl 6-4-2 according to the tooth direction of the pawls, so that the wall connecting piece can rotate upwards around the positioning rod 7; when the scaffold is adjusted to a proper position, the wall connecting piece is locked under the action of the ratchet mechanism, so that the scaffold is prevented from inclining or moving, and the connection is firmer; after the use is finished, the rotating shaft 6-3 is rotated, the top block 6-3-1 is abutted against the second half pawl 6-4-2 or the first half pawl 6-4-1, the wall connecting piece can rotate downwards around the positioning rod, and the wall connecting piece is reset to wait for the next use. During specific use, the angle and the length of the wall connecting piece can be adjusted simultaneously to finally adjust the verticality of the scaffold.

Furthermore, in order to prevent other impurities from entering the rotating head 6 and influencing the work of the ratchet 6-5 and the pawl 6-4, the rotating head 6 further comprises a cover plate 6-6, and the cover plate 6-6 is covered on the barrel-shaped shell 6-1.

Further, the end part, far away from the barrel bottom, of the rotating shaft 6-3 penetrates through the cover plate 6-6, and a shifting piece 6-3-2 fixed on the rotating shaft 6-3 is arranged on the outer side of the cover plate 6-6. During adjustment, an operator can drive the rotating shaft 6-3 to rotate by poking the poking piece 6-3-2, so that the top block 6-3-1 is abutted against the first half pawl 6-4-1 or the second half pawl 6-4-2, and adjustment is more convenient.

Furthermore, the thickness of the rotating head part 6 is equal to the distance between the two end plates 8-1, so that the scaffold can be prevented from moving along the axial direction of the positioning rod 7, and the connection of the wall connecting piece to the scaffold is more reliable.

As a preferable structure of the fixed shaft 6-2, the inner wall of the barrel-shaped shell 6-1 is convexly formed into the fixed shaft 6-2, a groove matched with the fixed shaft 6-2 is arranged at the vertex of the V-shaped structure, and the fixed shaft 6-2 is embedded in the groove to realize the rotary connection between the barrel-shaped shell 6-1 and the pawl 6-4. The structure is a preferable implementation structure, the processing cost is low, and the structure reliability is higher.

As a preferable fixing structure of the positioning rod 7 and the ratchet wheel 6-5, the square positioning block 9 is welded in the middle of the positioning rod 7, the periphery of the square positioning block 9 is welded on the inner ring of the ratchet wheel 6-5, and the structure reliability is higher.

Preferably, the sleeve 3 consists of a tubular handle 3-1 and a spiral tube 3-2, one end of the handle 3-1, far away from the spiral tube 3-2, is provided with an installation part with the diameter larger than that of the handle 3-1, and the thrust ball bearing is sleeved in the installation part in an interference manner. The operator can rotate the whole sleeve 3 by rotating the handle 3-1, and the adjustment is more convenient.

Preferably, the base 8 further comprises a mounting plate 8-2, the two end plates 8-1 are vertically fixed on the surface of the mounting plate 8-2, and the mounting plate 8-2 is screwed on the wall body through screws. The plastic expansion pipe can be embedded in the wall body in advance and is matched with the screw, so that the connection is firmer.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a tool type scaffold frame is wall spare even which characterized in that: the scaffold connecting device comprises a connecting head (1), wherein a connecting hole (2) for hinging a scaffold is formed in the connecting head (1); the connecting device is characterized by further comprising a thrust ball bearing, a shaft ring of the thrust ball bearing is sleeved on the connecting head (1) in an interference manner, a seat ring of the thrust ball bearing is sleeved with a sleeve (3) in an interference manner, a thread section is arranged on the inner wall of one end, far away from the thrust ball bearing, of the sleeve (3), a screw rod (4) is screwed in the thread section, a locking screw (5) is screwed in the wall, corresponding to the thread section, of the sleeve (3), a rotating head (6) is fixedly connected to one end, placed outside the sleeve (3), of the screw rod (4), a positioning rod (7) penetrates through the gap of the rotating head (6), and two ends of the positioning rod (7); the wall body is characterized by further comprising a base (8) fixed on the wall body, the base (8) is provided with two end plates (8-1) which are distributed in parallel, threads are arranged at two ends of the positioning rod (7), and two ends of the positioning rod (7) penetrate through the two end plates (8-1) respectively and are locked through bolts; the rotating head (6) comprises a barrel-shaped shell (6-1) fixedly connected with the screw rod (4), the axis of the barrel-shaped shell (6-1) is perpendicular to the screw rod (4) and parallel to the positioning rod (7), a fixed shaft (6-2), a rotating shaft (6-3), a pawl (6-4) and a ratchet wheel (6-5) are arranged inside the barrel-shaped shell (6-1), the fixed shaft (6-2) and the rotating shaft (6-3) are both arranged on the barrel-shaped shell (6-1) and perpendicular to the barrel bottom, the pawl (6-4) is composed of a first half pawl (6-4-1) and a second half pawl (6-4-2) which are symmetrically arranged, and the first half pawl (6-4-1) and the second half pawl (6-4-2) form a V-shaped structure, the vertex of the V-shaped structure is rotatably arranged on the fixed shaft (6-2), ratchets with opposite tooth directions are arranged at two ends of the V-shaped structure, and the ratchet wheel (6-5) is fixed in the middle of the positioning rod (7); the rotating shaft (6-3) is positioned between the first half pawl (6-4-1) and the second half pawl (6-4-2), a top block (6-3-1) is radially and outwards protruded on the side wall of the end part of the rotating shaft (6-3) far away from the barrel bottom, the top block (6-3-1) is abutted against the first half pawl (6-4-1) to realize that the first half pawl (6-4-1) is separated from the ratchet wheel (6-5), the second half pawl (6-4-2) is meshed with the ratchet wheel (6-5), or the top block (6-3-1) is abutted against the second half pawl (6-4-2) to realize that the second half pawl (6-4-2) is separated from the ratchet wheel (6-5), and the first half pawl (6-4-1) is meshed with the ratchet wheel (6-5), to form a bidirectional ratchet mechanism.

2. A tool scaffold wall connecting element according to claim 1, wherein: the rotating head (6) further comprises a cover plate (6-6), and the cover plate (6-6) covers the barrel-shaped shell (6-1).

3. A tool scaffold wall connecting element according to claim 2, wherein: the end part of the rotating shaft (6-3) far away from the barrel bottom penetrates through the cover plate (6-6), and a shifting sheet (6-3-2) fixed on the rotating shaft (6-3) is arranged on the outer side of the cover plate (6-6).

4. A tool scaffold wall element according to any one of claims 1 to 3, wherein: the inner wall of the barrel-shaped shell (6-1) is convexly formed into the fixed shaft (6-2), a groove matched with the fixed shaft (6-2) is formed in the vertex of the V-shaped structure, and the fixed shaft (6-2) is embedded in the groove to realize the rotating connection of the barrel-shaped shell (6-1) and the pawl (6-4).

5. A tool scaffold wall element according to any one of claims 1 to 3, wherein: the middle part of the positioning rod (7) is welded with a square positioning block (9), and the periphery of the square positioning block (9) is welded on an inner ring of the ratchet wheel (6-5).

6. A tool scaffold wall connecting element according to claim 1, wherein: the sleeve (3) comprises a tubular handle (3-1) and a solenoid (3-2), one end of the handle (3-1) far away from the solenoid (3-2) is provided with an installation part with a diameter larger than that of the handle (3-1), and the thrust ball bearing is arranged in the installation part in an interference fit mode.

7. A tool scaffold wall connecting element according to claim 1, wherein: the base (8) further comprises mounting plates (8-2), the two end plates (8-1) are vertically fixed on the surfaces of the mounting plates (8-2), and the mounting plates (8-2) are screwed on the wall body through screws.