Wall connecting piece for scaffold

Abstract

The utility model relates to the technical field of auxiliary devices of scaffolds, in particular to a wall connecting piece for scaffolds, which comprises a guide rod, a fixing piece is arranged at one end of the guide rod, a pipe fitting is sleeved outside the guide rod, the pipe fitting can move along the axial direction of the guide rod, and at least one of opposite end faces of the fixing piece and the pipe fitting is an inclined plane. A locking piece is arranged at the end, away from the fixing piece, of the pipe fitting, the locking piece is used for fixing the position of the pipe fitting on the guide rod, the locking piece can move in the axial direction of the guide rod, the pipe fitting can be driven to extrude the fixing piece by pushing the locking piece in the direction of the fixing piece, and the pipe fitting and the fixing piece extrude each other so that the pipe fitting can protrude out of the fixing piece. The device solves the problems that in the prior art, a wall connecting piece of an existing scaffold is difficult to separate from a wall in later masonry construction and needs to be cut off in a segmented mode, and potential fire hazards and hidden dangers of electric tool damage exist.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices of scaffolds, in particular to a wall connecting piece used for scaffolds. Background Art

[0002] The scaffolding wall connector is an important component of the scaffolding structure used to reliably connect the scaffolding to the building wall. Its main purpose is to ensure the overall stability, anti-overturning ability and ability to resist wind loads of the scaffolding during the construction process.

[0003] The existing scaffolding wall connection adopts the form of embedded steel pipes, which are arranged in the wall of the building. In the later masonry construction, the embedded steel pipes need to be cut off in sections to be separated from the wall, which has potential risks of fire and electric tool injury. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the existing scaffolding wall connecting parts are difficult to separate from the wall during the later masonry construction and need to be cut off in sections, which poses potential risks of fire and electric tool injuries, and provides a wall connecting part for scaffolding.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A wall connecting member for scaffolding,

[0007] It comprises a guide rod, one end of which is provided with a fixing piece.

[0008] The guide rod is covered with a tube, and the tube can move along the axial direction of the guide rod. At least one of the facing end surfaces of the fixing member and the tube is set as an inclined surface.

[0009] A locking piece is provided at one end of the tube away from the fixing piece, and the locking piece is used to fix the position of the tube on the guide rod. The locking piece can move along the axial direction of the guide rod, and pushing the locking piece toward the fixing piece can drive the tube to squeeze the fixing piece. The mutual squeezing of the tube and the fixing piece can make the tube bulge out of the fixing piece.

[0010] The fixing part and the guide rod are relatively stationary. When the guide rod is covered with a pipe fitting, the axis of the pipe fitting can be offset relative to the axis of the guide rod. Regarding the setting of the bevel, it includes that only the end of the pipe fitting facing the fixing part is provided with a bevel; it includes that the end of the fixing part facing the pipe fitting is provided with a bevel; it also includes that the end of the pipe fitting facing the fixing part is provided with a bevel and the end of the fixing part facing the pipe fitting is also provided with a bevel. The pipe fitting protrudes from the fixing part, and the distance from the pipe fitting to the guide rod is greater than the distance from the fixing part to the guide rod. Because the pipe fitting and the fixing part are squeezed against each other so that the pipe fitting protrudes from the fixing part, the size of the fixing part is larger than the internal size of the pipe fitting, and the pipe fitting will not be outside the fixing part when the pipe fitting and the fixing part are squeezed against each other. The wall connecting piece is provided with a fixing piece at one end of the guide rod, and an eccentric pipe fitting can be produced on the outer sleeve of the guide rod, and a locking piece for fixing the position of the pipe fitting is provided at one end of the pipe fitting away from the fixing piece. Then, the pipe fitting and the fixing piece can be pressed against each other by pushing the locking piece, so that the pipe fitting protrudes outward from the fixing piece, so that the pipe fitting presses against the installation pipe wall, thereby achieving the purpose of anchoring. When installing the wall connecting piece, both the pipe fitting and the fixing piece need to be arranged inside the building, and the distance from the fixing piece to the installation pipe opening is greater than the distance from the pipe fitting to the installation pipe opening. Compared with the existing wall connecting piece, it needs to be cut off in sections when it is separated from the wall. When dismantling the device, it is only necessary to move the locking piece in a direction away from the fixing piece, so that the mutual force between the pipe fitting and the fixing piece is reduced or even returned to zero, so that the eccentric distance of the pipe fitting is reduced or even returned to zero, so that the wall connecting piece can be directly taken out from the installation hole. The taken out wall connecting piece can also be reused, saving construction costs.

[0011] As a preferred solution of the present utility model, the guide rod is a lead screw, and the locking piece is a fastening nut.

[0012] The guide rod is a lead screw, and the locking piece is a locking nut, so rotating the locking nut can cause the steel pipe and the fixing piece to be squeezed against each other. The locking nut and the lead screw are arranged in a form that is easy to operate and can also improve the precision of adjusting the locking piece.

[0013] As a preferred embodiment of the present invention, the screw sleeve comprises a first steel tube and a second steel tube, the first steel tube is provided with an oblique cut at one end facing the second steel tube, the second steel tube is provided with an oblique cut at one end facing the first steel tube, the outer diameter of the second steel tube is larger than the inner diameter of the first steel tube, and the inner diameter of the second steel tube is smaller than the outer diameter of the first steel tube.

[0014] The lead screw is only covered with two steel pipes, which is convenient for adjustment and more convenient for installation and removal of the device. The ends of the first steel pipe and the second steel pipe facing each other are both provided with oblique cuts, which is convenient for adjusting the axial position of the first steel pipe. The outer diameter of the two steel pipes is larger than the inner diameter of the other steel pipe, which can avoid the situation where one of the steel pipes is covered by the other steel pipe during adjustment, causing adjustment failure.

[0015] As a preferred solution of the present invention, the angles of the bevel cut of the first steel pipe and the bevel cut of the second steel pipe are equal.

[0016] The loudness of the oblique cut angles of the two steel pipes can avoid as much as possible the friction between the cut corner of one steel pipe and the cut surface of the other steel pipe, which will affect the service life of the device.

[0017] As a preferred embodiment of the present invention, the angle of the bevel cut of the first steel pipe and the angle of the bevel cut of the second steel pipe are both greater than or equal to 30° and less than or equal to 45°.

[0018] The angles of the bevel cuts of the two steel pipes are both between 30° and 45°, which makes it easy to adjust the eccentric distance of the first steel pipe.

[0019] As a preferred embodiment of the present invention, the screw sleeve comprises a first steel tube and a second steel tube, the first steel tube is provided with an oblique cut at one end facing the second steel tube, the second steel tube is provided with a flat cut at one end facing the first steel tube, the outer diameter of the second steel tube is greater than the inner diameter of the first steel tube, the inner diameter of the second steel tube is smaller than the outer diameter of the first steel tube, and the outer diameter of the first steel tube is smaller than the outer diameter of the second steel tube.

[0020] The second steel pipe has a flat cut for easy processing. The outer diameter of the first steel pipe is smaller than the outer diameter of the second steel pipe, so the first steel pipe and the second steel pipe will not abut against each other when the first steel pipe and the second steel pipe are squeezed against each other because the outer diameters of the first steel pipe and the second steel pipe are equal, and the second steel pipe cannot be offset.

[0021] As a preferred solution of the present invention, the length of the first steel pipe is greater than the length of the second steel pipe.

[0022] The length of the first steel pipe is greater than that of the second steel pipe, so the contact area between the device and the hole wall is larger and the anchoring effect is better.

[0023] As a preferred solution of the present invention, a fastening nut is provided at one end of the first steel pipe away from the second steel pipe, and the fastening nut is sleeved on the first steel pipe.

[0024] The fastening nut is arranged at one end of the first steel pipe away from the second steel pipe, so that the position of the first steel pipe can be limited when the first steel pipe and the second steel pipe are in contact.

[0025] As a preferred solution of the present utility model, a spring washer is provided between the first steel pipe and the fastening nut.

[0026] As a preferred solution of the present invention, a first gasket is provided at one end of the first steel pipe away from the second steel pipe, and a second gasket is provided at one end of the second steel pipe away from the first steel pipe.

[0027] As a preferred solution of the utility model, the guide rod is a rack, and the locking member includes a pawl, a spring and a button. The spring pushes the pawl to engage with the rack, and the button protrudes from the outer wall of the locking member. Pressing the button drives the pawl to disengage.

[0028] The tooth shape of the rack can be a non-standard tooth shape in addition to the standard involute tooth shape, including but not limited to trapezoidal and triangular. The engagement of the pawl and the rack enables the locking member to move in only one direction. Pressing the button drives the pawl away from the rack to enable the locking member to move in the other direction. The connection structure of the button and the pawl can refer to the structure of the automatic umbrella.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0030] A wall connecting piece for a scaffold is provided with a guide rod, one end of which is provided with a fixing piece, a pipe fitting is provided on the outer sleeve of the guide rod, and a locking piece is provided on the end of the pipe fitting away from the fixing piece. The locking piece is pushed toward one end of the fixing piece, so that the pipe fitting and the fixing piece are pressed against each other, and at least one of the ends of the pipe fitting and the fixing piece facing each other is provided with an oblique opening, so that the pipe fitting will deviate from the axis of the guide rod due to the pressing with the fixing piece, and thus bulge outward from the fixing piece, so that the pipe fitting presses the installation pipe wall to achieve the purpose of anchoring. When installing the wall connecting piece, it is necessary to set both the pipe fitting and the fixing piece inside the building, and the distance from the fixing piece to the installation pipe opening is greater than the distance from the pipe fitting to the installation pipe opening. Compared with the existing wall connecting piece, it needs to be cut off in sections when it is separated from the wall. When the device is dismantled, it is only necessary to move the locking piece in a direction away from the fixing piece, so that the mutual force between the pipe fitting and the fixing piece is reduced or even returned to zero, so that the eccentric distance of the pipe fitting is reduced or even returned to zero, so that the wall connecting piece can be directly taken out from the installation hole. The removed wall connecting pieces can be reused, saving construction costs. The problem that the existing scaffolding wall connecting pieces are difficult to separate from the wall in the later masonry construction and need to be cut off in sections, which poses a potential risk of fire and electric tool injury, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a wall connecting member for a scaffold in a non-working state in Example 1 (the second steel pipe is in an oblique angle state);

[0032] Figure 2 yes Figure 1 A cross-sectional view of

[0033] Figure 3 It is a structural schematic diagram of a working state of a wall connecting member for a scaffold in Example 1 (the second steel pipe is in an oblique angle state);

[0034] Figure 4 It is a structural schematic diagram of a wall connecting member for scaffolding in a non-working state in Example 1 (the second steel pipe is in a flat angle state);

[0035] Figure 5 yes Figure 4 A cross-sectional view of

[0036] Figure 6 It is a structural schematic diagram of a working state of a wall connecting member for a scaffold in Example 1 (the second steel pipe is in a flat angle state);

[0037] Figure 7 It is a structural schematic diagram of a wall connecting member used for a scaffold in a non-working state in Example 2.

[0038] Icon: 1-screw, 2-fixing nut, 3-first steel pipe, 4-second steel pipe, 5-spring washer, 6-fastening nut, 7-rack, 8-pawl, 9-spring, 10-button. DETAILED DESCRIPTION

[0039] The utility model is described in detail below in conjunction with the accompanying drawings.

[0040] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0041] Example 1

[0042] like Figure 1-2 As shown, a wall connecting member for a scaffold comprises a guide rod, one end of which is provided with a fixing member, the outer sleeve of the guide rod is provided with a pipe member, the pipe member can move along the axial direction of the guide rod, at least one of the ends of the fixing member and the pipe member facing each other is provided with an oblique opening, the end of the pipe member away from the fixing member is provided with a locking member, the locking member is used to fix the position of the pipe member on the guide rod, the locking member can move along the axial direction of the guide rod, pushing the locking member in the direction of the fixing member can drive the pipe member to squeeze the fixing member, and the mutual squeezing of the pipe member and the fixing member can make the pipe member bulge out of the fixing member.

[0043] like Figure 2 and Figure 5As shown, the guide rod is a lead screw 1, the fixing member is a fixing nut 2 with a tubular object on its outer sleeve, and the locking member is a tightening nut 6. Figure 2 and Figure 5 They are all longitudinal sections along the axis of the screw 1.

[0044] like Figure 1-Figure 3 As shown, the outer sleeve of the lead screw 1 is provided with a first steel tube 3 and a second steel tube 4, the first steel tube 3 is provided with a first bevel cut at one end facing the second steel tube 4, the second steel tube 4 is provided with a second bevel cut at one end facing the first steel tube 3, the outer diameter of the second steel tube 4 is larger than the inner diameter of the first steel tube 3, and the inner diameter of the second steel tube 4 is smaller than the outer diameter of the first steel tube 3. The angles of the bevel cut of the first steel tube 3 and the bevel cut of the second steel tube 4 are equal. In this embodiment, the angles of the bevel cut of the first steel tube 3 and the bevel cut of the second steel tube 4 are both 30°. The end of the second steel tube 4 facing the first steel tube 3 can also be replaced with a flat cut, and when the second steel tube 4 is a flat cut, the outer diameter of the second steel tube 4 is smaller than the outer diameter of the first steel tube 3, as shown in FIG. Figure 4-Figure 6 shown.

[0045] The length of the first steel tube 3 is greater than the length of the second steel tube 4 .

[0046] A fastening nut 6 is disposed at one end of the first steel tube 3 away from the second steel tube 4 , and the fastening nut 6 is sleeved on the lead screw 1 .

[0047] A spring washer 5 is provided between the first steel pipe 3 and the fastening nut 6 .

[0048] The first steel tube 3 is provided with a first gasket at one end away from the second steel tube 4, and the second steel tube 4 is provided with a second gasket at one end away from the first steel tube 3. (not shown in the figure)

[0049] When installing the wall connecting member, the first steel pipe 3 and the second steel pipe need to be installed inside the building, and the distance from the fixing member to the hole of the predetermined installation position is greater than the distance from the pipe to the installation pipe opening. The screw 1 protruding from the building is used to connect the connecting steel pipe of the scaffolding. The axis of the connecting steel pipe can be perpendicular to the axis of the screw 1, and can also be parallel to the axis of the screw 1.

[0050] Example 2

[0051] like Figure 7As shown, a wall connecting member for a scaffold, the guide rod is a rack 7, the locking member includes a pawl 8, a spring 9 and a button 10, the spring 9 pushes the pawl 8 to engage with the rack 7, the button 10 protrudes from the outer wall of the locking member, and pressing the button 10 drives the pawl 8 out of engagement. In this embodiment, because the pawl 8 is engaged with the rack 7, the pawl 8 can only move toward the fixed member when it is engaged with the rack 7. The connection structure of the button 10 and the pawl 8 refers to the connection structure of an automatic umbrella. Pressing the button 10 drives the pawl 8 away from the rack 7, so that the locking member can move in the direction away from the fixed member.

[0052] Example 3

[0053] A wall connecting member for a scaffold comprises a lead screw 1, wherein the lead screw 1 is outer-circumferentially provided with a first steel tube 3 and a second steel tube 4, wherein one end of the first steel tube 3 facing the second steel tube 4 is circumferentially provided with a plurality of through grooves, wherein the axis of the through grooves is parallel to the axis of the first steel tube 3, and one end of the second steel tube 4 facing the first steel tube 3 is provided with a truncated cone connector, wherein the upper bottom surface of the truncated cone connector faces the first steel tube 3.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wall connecting member for scaffolding, characterized in that: It comprises a guide rod, one end of which is provided with a fixing piece. The guide rod is covered with a tube, and the tube can move along the axial direction of the guide rod. At least one of the facing end surfaces of the fixing member and the tube is set as an inclined surface. A locking piece is provided at one end of the tube away from the fixing piece, and the locking piece is used to fix the position of the tube on the guide rod. The locking piece can move along the axial direction of the guide rod, and pushing the locking piece toward the fixing piece can drive the tube to squeeze the fixing piece. The mutual squeezing of the tube and the fixing piece can make the tube bulge out of the fixing piece.

2. A wall connecting member for scaffolding according to claim 1, characterized in that: The guide rod is a lead screw (1), and the locking piece is a fastening nut (6).

3. A wall connecting member for scaffolding according to claim 2, characterized in that: The pipe fitting comprises a first steel pipe (3) and a second steel pipe (4); the first steel pipe (3) is provided with a first oblique cut at one end facing the second steel pipe (4); the second steel pipe (4) is provided with a second oblique cut at one end facing the first steel pipe (3); the outer diameter of the second steel pipe (4) is greater than the inner diameter of the first steel pipe (3); and the inner diameter of the second steel pipe (4) is smaller than the outer diameter of the first steel pipe (3).

4. A wall connecting member for scaffolding according to claim 3, characterized in that: The angles of the first bevel cut of the first steel pipe (3) and the second bevel cut of the second steel pipe (4) are equal.

5. A wall connecting member for scaffolding according to claim 4, characterized in that: The first oblique cut of the first steel pipe (3) and the second oblique cut of the second steel pipe (4) are both greater than or equal to 30° and less than or equal to 45°.

6. A wall connecting member for scaffolding according to claim 2, characterized in that: The outer sleeve of the lead screw (1) is provided with a first steel tube (3) and a second steel tube (4); an oblique cut is provided at one end of the first steel tube (3) facing the second steel tube (4); a flat cut is provided at one end of the second steel tube (4) facing the first steel tube (3); an outer diameter of the second steel tube (4) is larger than an inner diameter of the first steel tube (3); an inner diameter of the second steel tube (4) is smaller than an outer diameter of the first steel tube (3); and an outer diameter of the first steel tube (3) is smaller than an outer diameter of the second steel tube (4).

7. A wall connecting member for scaffolding according to any one of claims 3 to 6, characterized in that: The length of the first steel tube (3) is greater than the length of the second steel tube (4).

8. A wall connecting member for scaffolding according to any one of claims 3 to 6, characterized in that: A spring washer (5) is provided between the first steel pipe (3) and the fastening nut (6).

9. A wall connecting member for scaffolding according to any one of claims 3 to 6, characterized in that: A first gasket is provided at one end of the first steel tube (3) away from the second steel tube (4), and a second gasket is provided at one end of the second steel tube (4) away from the first steel tube (3).

10. A wall connecting member for scaffolding according to claim 1, characterized in that: The guide rod is a rack (7), and the locking member comprises a pawl (8), a spring (9) and a button (10). The spring (9) pushes the pawl (8) to engage with the rack (7), and the button (10) protrudes from the outer wall of the locking member. Pressing the button (10) drives the pawl (8) to disengage.

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