Scaffold jacking assembly and disassembly electric wrench

Abstract

The utility model discloses an electric wrench for assembling and disassembling a scaffold jacking, belongs to the technical field of building tools, and aims to provide the electric wrench for assembling and disassembling the scaffold jacking, which is specially used for screwing an adjusting nut and is designed aiming at the structure of the adjusting nut of the jacking. A motor and a battery are installed in a handle, a bevel gear is installed at the front end of a motor shaft and meshed with a bevel gear, the bevel gear is fixedly installed on a driving gear, the bevel gear and the driving gear are coaxially installed on a shell through a driving shaft, the driving gear is meshed with an intermediate gear, and the intermediate gear is installed on the shell through a gear shaft. The intermediate gear is meshed with the output gear, and the output gear is sleeved on the cavity shaft. Motor driving is adopted, manual operation is replaced, manual adjustment is completely separated by controlling the motor, driving transmission between gears and finally screwing the adjusting nut Z by clamping the two side wings Y, the efficiency is improved, meanwhile, safety is improved, in addition, by adjusting the rotating speed of the motor, the adjusting nut Z is more stably screwed to the relative optimal position, and the working efficiency is improved. And the accuracy is improved.

Description

Technical Field

[0001] This utility model belongs to the field of construction tool technology, and in particular relates to a wrench specifically used for scaffolding top support. Background Technology

[0002] Scaffolding is a widely used support structure in the construction industry. During the installation of formwork scaffolding, scaffolding top supports are needed. These are important load-bearing components, mainly used to adjust the height of the top of the scaffolding uprights and bear the load from above. They are divided into screw-type, pin-type, etc., among which the screw-type is more widely used. (See...) Figure 5 The system consists of an adjusting screw X in the center, with an adjustable support M at the top. An adjusting nut Z is threaded onto the adjusting screw X. A vertical pole N connects to the adjusting nut Z and is simultaneously fitted onto the adjusting screw X. Due to the complexity of scaffolding installation, it cannot be tightened using a conventional wrench. Therefore, two side wings Y are machined on both coaxial sides of the adjusting nut Z. Currently, tightening the adjusting nut Z is primarily done manually. A tube is used, one end is placed against the side wing Y, and the other end is hammered until adjustment is complete. While this method is simple and uses readily available materials, it is inefficient, unsafe, and the accuracy of the adjustment cannot be guaranteed during hammering. Summary of the Invention

[0003] The purpose of this utility model is to design an electric wrench specifically for tightening and loosening the adjusting nut of the scaffolding top support.

[0004] This utility model includes a housing, a handle, and a hand-held handle fixed to the front end of the handle by fastening bolts. A motor and battery are installed inside the handle. A bevel gear is installed at the front end of the motor shaft, meshing with a bevel gear. The bevel gear is fixedly installed on a drive gear. The bevel gear and drive gear are coaxially mounted on the housing via a drive shaft. The drive gear meshes with a secondary gear, which is mounted on the housing via a gear shaft. The secondary gear meshes with an output gear, which is fitted onto a hollow shaft. Positioning rollers are installed on both sides of the output gear on the hollow shaft. A guide limiting slide rail is located on the outer edge of the positioning roller, matching and installing with a guide limiting slide groove. The guide limiting slide groove is opened on a guide positioning component, which is fixedly installed on the housing. A top support bolt hole is located in the middle of the positioning roller. Bolt channels communicating with the top support bolt hole are opened in the housing, the guide positioning component, the guide limiting slide rail, the hollow shaft, and the front end of the output gear. An opening is opened in the housing corresponding to the positioning roller. Two torsion bars on the same axis are installed on the side of the positioning roller.

[0005] This utility model has two intermediate gears, both of which mesh with the driving gear and are mounted on the housing via their respective gear shafts; both intermediate gears mesh with the output gear.

[0006] This utility model uses a motor drive to replace manual operation. By controlling the motor, the transmission between gears is driven, and finally, by locking the two side wings Y and turning the adjusting nut Z, manual adjustment is completely eliminated, which improves efficiency and increases safety. In addition, by adjusting the speed of the motor, the adjusting nut Z is turned to the relatively optimal position more stably, increasing its accuracy. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0008] Figure 2 This is a top sectional view of the present invention;

[0009] Figure 3 This is a utility model Figure 2 AA section view;

[0010] Figure 4 This is an enlarged schematic diagram of the matching part of the guide limiting slide rail and the guide limiting slide groove of this utility model;

[0011] Figure 5 This is a schematic diagram of the scaffolding top support structure;

[0012] Figure 6 This is a schematic diagram of the connection method between this utility model and the scaffolding top support. Detailed Implementation

[0013] This utility model includes a housing 3, a handle 1, and a hand-held handle 2 fixed to the front end of the handle 1 by a fastening bolt 11. A motor and battery are installed inside the handle 1. This structure is commonly used in existing mechanical equipment; this utility model simply uses its power source as the power output source. The handle 1 and hand-held handle 2 are designed for easy gripping by the operator, providing greater stability. The hand-held handle 2 can be disassembled and its position adjusted; the fastening bolt 11 is the component used to tighten or loosen it. The motor inside the handle 1 is the power source, operating on battery power. This structure is similar to handheld tools such as manual drills currently on the market. Due to its relatively mature structure, this utility model will not be dissected or described in detail.

[0014] A bevel gear 10 is mounted on the front end of the motor shaft 12. The bevel gear 10 meshes with a bevel gear 8. The bevel gear 8 is fixedly mounted on the drive gear 13. The bevel gear 8 and the drive gear 13 are coaxially mounted on the housing 3 via the drive shaft 9. The drive gear 13 meshes with a secondary gear 15. The secondary gear 15 is mounted on the housing 3 via a gear shaft 14. The secondary gear 15 meshes with an output gear 17. The output gear 17 is fitted onto the cavity shaft 21. Positioning rollers 7 are mounted on both sides of the output gear 17 on the cavity shaft 21. Guide rollers 7 are located on the outer edge of the positioning rollers 7. The guide limit slide rail 16 and the guide limit slide rail 16 are matched and installed with the guide limit slide groove 19. The guide limit slide groove 19 is opened on the guide positioning component 18, and the guide positioning component 18 is fixedly installed on the housing 3. The center of the positioning roller 7 is the top support bolt hole 4. The housing 3, the guide positioning component 18, the guide limit slide rail 16, the cavity shaft 21, and the front end of the output gear 17 are provided with bolt channels 5 that communicate with the top support bolt hole 4. The housing 3 is provided with a window 20 corresponding to the positioning roller 7. Two torsion bars 6 with the same axis are installed on the side of the positioning roller 7.

[0015] The bevel gear 10, bevel gear 8, driving gear 13, intermediate gear 15, and output gear 17 constitute a gear transmission, see [link / description]. Figure 2 The bevel gear 10 meshes with the bevel gear 8 in a wedge shape, and the bevel gear 8 is coaxially fixed with the drive gear 13. Therefore, the power of the motor shaft 12 is transmitted to the drive gear 13. Finally, the motor shaft 12 transmits the power to the output gear 17 through the meshing transmission of these gears.

[0016] See Figure 3 The output gear 17, the cavity shaft 21, and the positioning roller 7 are fixed together. Thus, the output gear 17 drives the cavity shaft 21 to rotate synchronously with the positioning roller 7. A guide rail (guide limiting slide rail 16) is set on the positioning roller 7, and the guide rail slides in the guide groove (guide limiting slide groove 19 on the guide positioning member 18). Therefore, the output gear 17, the cavity shaft 21, and the positioning roller 7 are guided by the cooperation of the guide rail and the guide groove when they roll.

[0017] See Figure 1 A window 20 is opened on the side of the housing 3, through which the positioning roller 7 can be seen. Two protruding torsion bars 6 are set on the positioning roller 7, generally set on the same axis, but the position can also be set according to the actual situation. It is not necessary to be in a coaxial position. This position can be changed according to the position of the side wing Y, as long as it can be stably placed on both sides of the two side wing Y (see Figure 6 The torsion bar 6 and the side wing Y are placed accordingly.

[0018] This utility model has two intermediate gears 15, both of which mesh with the driving gear 13. The two gears 15 rotate in the same direction and are mounted on the housing 3 via their respective gear shafts 14. Both intermediate gears 15 mesh with the output gear 17. The figures of this utility model show an example with two intermediate gears 15. Figure 3 Both intermediate gears mesh or connect with the driving gear 13 and the cavity shaft 21. The design of the two intermediate gears can increase the stability of gear transmission.

[0019] The design of the bolt channel 5 and the top support bolt hole 4 is to facilitate the insertion of the top support bolt into the top support bolt hole 4 from the front end. At the same time, the torsion bar 6 is locked with the side wing Y, and finally the power of the gear transmission drives the adjusting nut Z to rotate on the adjusting screw X.

[0020] The working process of this utility model:

[0021] See Figure 2 Since the handle 1 and the handgrip 2 are similar to the structure of an existing manual drill, a motor and a battery that provides power to the motor are installed inside the handle 1. A motor switch, similar to a trigger, is also installed outside the handle 1. First, the adjusting screw X is passed through the bolt channel 5 until it is fully inserted into the top support bolt hole 4. Simultaneously, the two torque rods 6 are placed on either side of the two side wings Y. Figure 6 (Position), then turn on the motor switch, the motor works, and when the positioning roller 7 rotates, it drives the torsion bar 6 to rotate, and at the same time, it drives the adjusting nut Z to rotate on the adjusting screw X with the thread pattern, thus completing the tightening.

[0022] The present invention is described as being fitted onto the adjusting screw X between the adjustable support M and the adjusting nut Z. Alternatively, the tool set can be fitted onto the upright N, as long as the torsion bar 6 is in contact with the side wing Y, and the adjusting nut Z is rotated through the side wing Y.

Claims

1. A scaffolding top support installation and dismantling electric wrench, comprising a housing (3), a handle (1), and a hand-held handle (2) fixed to the front end of the handle (1) by a fastening bolt (11), wherein a motor and a battery are installed inside the handle (1), characterized in that: A bevel gear (10) is installed at the front end of the motor shaft (12). The bevel gear (10) meshes with a bevel gear (8). The bevel gear (8) is fixedly installed on the drive gear (13). The bevel gear (8) and the drive gear (13) are coaxially installed on the housing (3) via the drive shaft (9). The drive gear (13) meshes with a medium gear (15). The medium gear (15) is installed on the housing (3) via the gear shaft (14). The medium gear (15) meshes with an output gear (17). The output gear (17) is fitted on the cavity shaft (21). Positioning rollers (7) are installed on both sides of the output gear (17) on the cavity shaft (21). Outside the positioning rollers (7) Along the guide limiting slide rail (16), the guide limiting slide rail (16) and the guide limiting slide groove (19) are matched and installed. The guide limiting slide groove (19) is opened on the guide positioning part (18). The guide positioning part (18) is fixedly installed on the housing (3). The center of the positioning roller (7) is the top support bolt hole (4). The front end of the housing (3), the guide positioning part (18), the guide limiting slide rail (16), the cavity shaft (21), and the output gear (17) are opened with bolt channels (5) that communicate with the top support bolt hole (4). The housing (3) has a window (20) corresponding to the positioning roller (7). A torsion bar (6) with the same axis is installed on the side of the positioning roller (7).

2. The electric wrench for installing and removing scaffolding top supports according to claim 1, characterized in that: There are two intermediate gears (15), both of which mesh with the driving gear (13) and are mounted on the housing (3) through their respective gear shafts (14); both intermediate gears (15) mesh with the output gear (17).

Images