Pin key type scaffold supporting structure

Abstract

The utility model relates to the technical field of scaffolds, in particular to a pin key type scaffold supporting structure which comprises a stand column, inserting pieces are fixedly connected to the outer portion of the stand column, containing grooves are formed in the inserting pieces, the inserting pieces are distributed at equal intervals, a frame is connected to the outer portions of the inserting pieces in a sliding mode, a transverse rod is fixedly connected to the outer portion of the frame, and the transverse rod is fixedly connected with the outer portion of the stand column. A sleeve is fixedly connected to the bottom of the stand column, an extension cylinder is fixedly connected to the bottom end of the stand column, the interior of the sleeve communicates with the interior of the extension cylinder, a connecting shaft is rotationally connected to the interior of the sleeve, a worm gear is fixedly connected to the top of the connecting shaft, and a worm is connected to the exterior of the worm gear in a meshed mode. Compared with an existing pin key type scaffold supporting structure, through the design of the expansion plate and the extrusion sleeve, the stability of a scaffold can be rapidly improved, the plug pin can be fixed, and the overall practicability is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffolding, in particular to a pin-key type scaffolding supporting structure. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of the construction process. Pin-key scaffolding is made up of multiple rods connected together, and is standardized and easy to manage.

[0003] When using traditional scaffolding, the columns are directly in contact with the ground, the crossbar is inserted into the inside of the wheel, and finally the pin is inserted into the inside of the crossbar and the wheel to complete the connection between the crossbar and the column. However, under the influence of external force, the bottom is sometimes unstable and shakes left and right, which cannot play a good fixed support role. In addition, the plug of the crossbar is inserted into the conical long hole of the wheel, and it may be accidentally pulled out and detached from the wheel. The safety needs to be improved. In particular, after repeated use, the conical long hole and the plug will be deformed, the size of the conical long hole and the plug will change, and looseness will occur after plugging.

[0004] Therefore, it is particularly important to improve the existing pin-key type scaffolding support structure and design a new pin-key type scaffolding support structure to solve the above technical defects and improve the practicality of the overall pin-key type scaffolding support structure. Utility Model Content

[0005] The purpose of the present utility model is to provide a pin-key type scaffolding support structure. Through the overall design, the expansion plate is expanded outward to increase the contact area, and then the extrusion sleeve is rotated to press the plug, effectively preventing the pin from falling off and loosening, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A pin-key type scaffolding support structure includes a column, the outside of the column is fixedly connected to a plug-in, the inside of the plug-in is provided with a receiving groove, the plug-ins are distributed at equal intervals, the outside of the plug-in is slidably connected to a frame, the outside of the frame is fixedly connected to a cross bar, the bottom of the column is fixedly connected to a sleeve, the bottom end of the column is fixedly connected to an extension tube, the interiors of the sleeve and the extension tube are interconnected, the interior of the sleeve is rotatably connected to a connecting shaft, the top of the connecting shaft is fixedly connected to a worm gear, and the outside of the worm gear is meshingly connected to a worm.

[0008] As a preferred solution of the present invention, one end of the worm extends to the outside of the sleeve, and the end of the worm extending to the outside of the sleeve is fixedly connected to a knob, and the outside of the knob is provided with anti-slip grooves.

[0009] The utility model discloses an improved scheme that the connecting shaft is rotatably connected with the baffle outside and at the connecting place of sleeve and extension cylinder, the bottom fixed connection of connecting shaft has the screw rod, the top sliding connection of sleeve has the moving cover, the bottom fixed connection of sleeve has the fixed cover.

[0010] The utility model discloses an improved scheme that the moving cover and fixed cover are fixedly connected with first connecting frame and second connecting frame respectively outside, first connecting frame and second connecting frame all are equally spaced distribution, the inside rotatable connection of first connecting frame has the swing lever, and the rotatable connection of swing lever one end away from connecting frame between second connecting frame has the extension board.

[0011] The utility model discloses an improved scheme that the inside wall of extension cylinder is provided with the limiting slot, the inside fixed connection of moving cover with the position corresponding with limiting slot has the sliding block, and the sliding block extends to the inside of extension cylinder, and the fixed connection of sliding block one end away from moving cover has the connecting ring, and the connecting mode of connecting ring with screw rod is screw connection.

[0012] The utility model discloses an improved scheme that the inside of frame is provided with the waist slot, and the plug-in of plug-in is connected in the inside of waist slot, and the top structure size of plug-in is greater than the structure size of bottom.

[0013] The utility model discloses an improved scheme that the outside of stand is provided with the thread groove between plug-in, and the thread connection of thread groove has extrusion cover, and the fixed connection of extrusion cover bottom has the impact block.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] In the utility model, the extension cylinder is placed straight in the inside of the pre-buried pit by digging the pre-buried pit at the specified place, the worm is engaged with the worm gear while rotating, the rotating force is finally transmitted to the connecting shaft, the screw rod is driven to rotate, then the screw rod and the connecting ring are screwed, the moving cover slides outside the extension cylinder, one end of the swing lever is inclined, the extension board is extruded at one end, the extension board is completely unfolded, the support of the stand is greatly improved, the frame wraps the plug-in, the plug-in is inserted from the inside of the waist slot and extended to the containing groove, the extrusion cover is rotated along the thread groove, then the impact block presses the plug-in, the connection between the horizontal rod and the stand is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the sleeve structure schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the sleeve of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the mobile sleeve of the utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the framework of the utility model.

[0021] In the figure: 1. column; 2. plug-in; 3. receiving groove; 4. frame; 401, waist groove; 5. cross bar; 6. sleeve; 7. extension tube; 8. connecting shaft; 9. worm gear; 10. worm; 11. knob; 12. screw; 13. movable sleeve; 14. fixed sleeve; 15. swing rod; 16. expansion plate; 17. limit groove; 18. connecting ring; 19. plug; 20. threaded groove; 21. extrusion sleeve. DETAILED DESCRIPTION

[0022] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example:

[0024] See also Figures 1-5 , the utility model provides a technical solution:

[0025] The worm gear 9 is connected to the worm gear 9 by the worm gear 9, and the worm gear 9 is connected to the worm gear 9 by the worm gear 9.

[0026] For further information, see Figure 1 、 Figure 2 andFigure 3 In this embodiment, one end of the worm 10 extends to the outside of the sleeve 6, and the end of the worm 10 extending to the outside of the sleeve 6 is fixedly connected to the knob 11. The outside of the knob 11 is provided with anti-slip grooves. By rotating the knob 11, the worm 10 is driven to rotate, and the anti-slip grooves provided on the outside of the knob 11 increase the friction between the anti-slip grooves and the fingers, thereby preventing the worm from slipping out of the hand.

[0027] For further information, see Figure 2 、 Figure 3 and Figure 4 The bottom of the connecting shaft 8 is fixedly connected with a screw rod 12, and the top of the sleeve 6 is slidably connected with a movable sleeve 13. The bottom end of the sleeve 6 is fixedly connected with a fixed sleeve 14. The outsides of the movable sleeve 13 and the fixed sleeve 14 are respectively fixedly connected with the first connecting frame and the second connecting frame. The first connecting frame and the second connecting frame are evenly spaced. The inside of the first connecting frame is rotatably connected with a swing rod 15. The swing rod 15 is rotatably connected with an expansion plate 16 between one end away from the connecting frame and the second connecting frame. By sliding the movable sleeve 13 downward, the movable sleeve 13 will move toward the direction of the fixed sleeve 14. At the same time, one end of the swing rod 15 is tilted, squeezing one end of the expansion plate 16, and the other end of the expansion plate 16 will swing inside the second mounting frame to achieve full expansion of the expansion plate 16, forming a vertical relationship with the extension tube 7. Finally, the embedded pit is filled, and the contact area with the embedded pit is increased by the expansion plate 16, so that the support of the column 1 is greatly improved.

[0028] For further information, see Figure 3 and Figure 4 In this embodiment, a limiting groove 17 is provided on the inner side wall of the extension tube 7, and a slider is fixedly connected to the position of the interior of the movable sleeve 13 corresponding to the limiting groove 17. The slider extends to the interior of the extension tube 7, and the end of the slider away from the movable sleeve 13 is fixedly connected to a connecting ring 18. The connecting ring 18 is connected to the screw rod 12 by a threaded connection. The rotation of the connecting shaft 8 drives the screw rod 12 to rotate, and then the screw rod 12 and the connecting ring 18 react with a thread, so that the connecting ring 18 spirals down on the outside of the screw rod 12, and due to the limiting effect of the limiting groove 17 on the slider, the rotation angle of the connecting ring 18 is limited, and it can only perform lifting and lowering movements on the outside of the screw rod 12, so that the movable sleeve 13 slides on the outside of the extension tube 7.

[0029] For further information, see Figure 1 and Figure 5In the embodiment, the inside of the frame 4 is provided with a waist groove 401, the plug-in 19 is inserted into the inside of the waist groove 401, the top structure of the plug-in 19 is larger than the bottom structure, the frame 4 is wrapped outside the plug-in 2, and the plug-in 19 is inserted into the inside of the waist groove 401 and extended to the accommodating groove 3, so that the fixing between the frame 4 and the plug-in 2 is completed.

[0030] Further, please refer to Figure 1 In the embodiment, the outside of the column 1 between the plug-ins 2 is provided with a threaded groove 20, the extrusion sleeve 21 is threadedly connected outside the threaded groove 20, the bottom of the extrusion sleeve 21 is fixedly connected with the impact block, in order to prevent the plug-in 19 from being separated from the inside of the waist groove 401 due to gravity, the extrusion sleeve 21 is rotated along the threaded groove 20 and spirally descends outside the column 1, and then the impact block presses the plug-in 19, so that the stability is further improved.

[0031] In the embodiment, the implementation scene is specifically: the extension cylinder 7 is placed straight in the inside of the pre-buried pit at the designated place, the knob 11 is rotated, the worm 10 is driven to rotate, the worm 10 is engaged with the worm wheel 9 during rotation, so that the worm 10 and the worm wheel 9 rotate synchronously, the rotating force is transmitted to the connecting shaft 8, the screw rod 12 is driven to rotate, the screw rod 12 and the connecting ring 18 are threadedly reacted, the connecting ring 18 spirally descends outside the screw rod 12, the angle of rotation of the connecting ring 18 is limited due to the limiting action of the limiting groove 17 on the sliding block, the connecting ring 18 can only make lifting motion outside the screw rod 12, the moving sleeve 13 slides outside the extension cylinder 7, one end of the swing rod 15 is inclined, the one end of the swing rod 15 is pressed, the other end of the swing rod 15 swings in the inside of the second mounting frame, the expansion plate 16 is completely unfolded, a perpendicular relationship is formed between the expansion plate 16 and the extension cylinder 7, the pre-buried pit is filled, the contact area with the pre-buried pit is increased by the expansion plate 16, the supporting property of the column 1 is greatly improved, the frame 4 wraps the plug-in 2, the plug-in 19 is inserted into the inside of the waist groove 401 and extended to the accommodating groove 3, the extrusion sleeve 21 is rotated along the threaded groove 20 and spirally descends outside the column 1, and then the impact block presses the plug-in 19, so that the connection between the horizontal rod 5 and the column 1 is realized.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pin-key type scaffolding support structure, comprising a column (1), characterized in that: The exterior of the column (1) is fixedly connected to a plug-in (2), an interior of the plug-in (2) is provided with a receiving groove (3), the plug-ins (2) are distributed at equal intervals, the exterior of the plug-in (2) is slidably connected to a frame (4), the exterior of the frame (4) is fixedly connected to a crossbar (5), the bottom of the column (1) is fixedly connected to a sleeve (6), the bottom end of the column (1) is fixedly connected to an extension tube (7), the interiors of the sleeve (6) and the extension tube (7) are interconnected, the interior of the sleeve (6) is rotatably connected to a connecting shaft (8), the top of the connecting shaft (8) is fixedly connected to a worm gear (9), and the exterior of the worm gear (9) is meshingly connected to a worm (10).

2. A pin-key type scaffolding support structure according to claim 1, characterized in that: One end of the worm (10) extends to the outside of the sleeve (6), and the end of the worm (10) extending to the outside of the sleeve (6) is fixedly connected to a knob (11), and the outside of the knob (11) is provided with anti-slip grooves.

3. The pin-key type scaffolding support structure according to claim 1, characterized in that: A partition is rotatably connected to the outside of the connecting shaft (8) and at the connection between the sleeve (6) and the extension tube (7); a screw rod (12) is fixedly connected to the bottom of the connecting shaft (8); a movable sleeve (13) is slidably connected to the top of the sleeve (6); and a fixed sleeve (14) is fixedly connected to the bottom of the sleeve (6).

4. The pin-key type scaffolding support structure according to claim 3, characterized in that: The outsides of the movable sleeve (13) and the fixed sleeve (14) are respectively fixedly connected to a first connecting frame and a second connecting frame, the first connecting frame and the second connecting frame are distributed at equal intervals, the inside of the first connecting frame is rotatably connected to a swing rod (15), and the end of the swing rod (15) away from the connecting frame is rotatably connected to the second connecting frame with an expansion plate (16).

5. The pin-key type scaffolding support structure according to claim 3, characterized in that: A limiting groove (17) is provided on the inner side wall of the extension tube (7); a slider is fixedly connected to a position inside the movable sleeve (13) corresponding to the limiting groove (17); the slider extends into the interior of the extension tube (7); a connecting ring (18) is fixedly connected to the end of the slider away from the movable sleeve (13); and the connecting ring (18) is connected to the screw rod (12) in a threaded connection manner.

6. The pin-key type scaffolding support structure according to claim 1, characterized in that: A waist groove (401) is provided inside the frame (4), and a plug-in connection (19) is provided inside the waist groove (401), and the top structure size of the plug-in connection (19) is larger than the bottom structure size.

7. The pin-key type scaffolding support structure according to claim 1, characterized in that: A threaded groove (20) is provided on the outside of the column (1) and between the plug-ins (2). The external thread of the threaded groove (20) is connected to an extrusion sleeve (21), and the bottom of the extrusion sleeve (21) is fixedly connected to a collision block.

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