Electric tool support

Abstract

The utility model discloses an electric tool support. Comprising a bottom frame, a driving unit, a first supporting column, a second supporting column and a third supporting column, the driving unit is installed on the bottom frame, and the first supporting column, the second supporting column and the third supporting column are each provided with a corresponding movable unit; the first supporting column is fixedly installed on the bottom frame, and the second supporting column is connected with the movable unit installed on the first supporting column in a matched mode and driven by the driving unit to move longitudinally. The third supporting column is connected with a movable unit installed on the second supporting column in a matched mode and can ascend and descend along with ascending and descending of the third supporting column. A mounting position for mounting an electric tool is arranged at the movable unit on the third supporting column; the movable unit comprises a hollow outer sleeve and a matching piece rotationally arranged in the hollow outer sleeve, and the matching piece comprises a conical surface abutting against the outer wall of the corresponding supporting column. According to the electric tool, the matching piece with the conical surface is matched with the corner of the supporting column, so that the action stability of the electric tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tool auxiliary tools, in particular to an electric tool bracket. Background Art

[0002] When using electric tools, they are usually operated by manual grip, which requires a high level of arm strength and work experience from the user. Based on this, an electric tool auxiliary bracket has appeared in the prior art, such as the patent document CN215208220U previously applied for by the applicant, which enables the electric tool to be raised and lowered, moved forward and backward, and adjusted in angle to facilitate user operation.

[0003] In the electric tool bracket, the corresponding action of the electric tool is achieved by the sliding of the sliding part on the rod. Specifically, the installation cavity on the sliding part needs to match the shape and size of the rod. If the installation cavity of the sliding part is too small, the friction between it and the rod will be too large, while if the installation cavity is too large, the whole device will shake and be unstable.

[0004] For example, in the patent document CN215196728U previously applied for by the applicant, a cylindrical sleeve is additionally configured between the rod and the sliding member, and the sleeve is against the side wall of the rod, but the corresponding sleeve can only be set on the two opposite side walls of the rod, and the left and right directions still need to rely on the precision of the structure size.

[0005] To this end, the applicant has made further improvements. Utility Model Content

[0006] The utility model aims at the deficiencies in the prior art and provides an electric tool bracket.

[0007] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0008] An electric tool stand comprises a base frame, a driving unit, a first support, a second support and a third support, wherein the driving unit is mounted on the base frame, and corresponding movable units are mounted on the first support, the second support and the third support respectively;

[0009] The first support column is fixedly mounted on the base frame, and the second support column is connected with a movable unit mounted on the first support column and driven by the driving unit to move longitudinally;

[0010] The third support column is cooperatively connected with the movable unit installed on the second support column and can be raised and lowered along with the movable unit;

[0011] The movable unit on the third pillar has an installation position for installing an electric tool;

[0012] The movable unit comprises a hollow outer shell and a matching piece rotatably arranged in the hollow outer shell, and the matching piece comprises a conical surface abutting against the outer wall of the corresponding pillar.

[0013] In the above scheme, preferably, the driving unit includes a motor fixed on the base frame and a screw rod longitudinally and rotatably installed on the base frame, the screw rod is transmission connected to the motor, the second pillar is sleeved on the screw rod, and has a nut on its inner wall that cooperates with the screw rod transmission.

[0014] In the above scheme, preferably, a bracket is fixed on the base, the screw is rotatably mounted on the bracket, a turbine is fixed at the bottom of the screw, a worm matched with the turbine is rotatably arranged on the bracket, one end of the worm extends outside the bracket and is transmission-connected to the motor;

[0015] The worm and the motor are connected via a chain or belt transmission.

[0016] In the above scheme, preferably, a first rack is fixed on the outer wall of the second pillar, a first gear meshing with the first rack is rotatably connected in the movable unit installed on the second pillar, and the first gear is transmission-connected to the first motor on the fixed movable unit.

[0017] In the above solution, preferably, the first pillar, the second pillar and the third pillar have inclined surfaces at their corners respectively that are matched with the conical surface.

[0018] An electric tool stand comprises a base frame, a second support and a third support, wherein corresponding movable units are respectively installed on the second support and the third support;

[0019] The second pillar is fixedly mounted on the base frame, a first rack is fixed on the outer wall of the second pillar, a first gear meshing with the first rack is rotatably connected in a movable unit mounted on the second pillar, and the first gear is transmission-connected to a first motor on the fixed movable unit;

[0020] The third support column is cooperatively connected with the movable unit installed on the second support column and can be raised and lowered along with the movable unit;

[0021] The movable unit on the third pillar has an installation position for installing an electric tool;

[0022] The movable unit comprises a hollow outer shell and a matching piece rotatably disposed in the hollow outer shell, wherein the matching piece comprises a conical surface abutting against the outer wall of the corresponding support;

[0023] The corners of the second support and the third support are respectively provided with inclined surfaces matched with the conical surface.

[0024] In the above scheme, preferably, a second rack is fixed on the outer wall of the third pillar, a second gear meshing with the second rack is rotatably connected in the movable unit installed on the third pillar, and the second gear is transmission-connected to a second motor fixed on the movable unit.

[0025] In the above scheme, preferably, a connecting frame is fixed on the movable unit installed on the second pillar, and a mounting hole and an arc-shaped mounting groove are opened on the connecting frame. The third pillar is rotatably connected to the connecting frame through a pin shaft installed at the mounting hole, and a locking screw matching the third pillar is arranged at the arc-shaped mounting groove, so that the positioning angle of the third pillar can be adjusted by loosening or tightening the locking screw.

[0026] In the above scheme, preferably, a handrail and a plurality of walking wheels are fixed on the base frame.

[0027] In the above solution, preferably, the matching piece has one or two conical surfaces for adapting to the outer wall of the corner of one or two corresponding pillars;

[0028] The four corners of the corresponding pillars are respectively provided with conical surfaces matched therewith.

[0029] The beneficial effects of the utility model are:

[0030] The utility model improves the stability of the power tool by cooperating with the corners of the pillar through the matching piece with the conical surface; the four corners of the pillar are designed as inclined surfaces, and the stability of the power tool is further improved through the cooperation of the inclined surfaces and the conical surfaces; the lifting, moving forward and backward and angle adjustment of the power tool can be achieved through the cooperation of multiple pillars; the overall structure is simple, the operation is convenient, and the support stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the utility model.

[0032] Figure 2 This is a schematic diagram of another viewing angle of the present invention.

[0033] Figure 3 It is a schematic diagram of the cooperation between the second support column and the movable unit of the utility model.

[0034] Figure 4 It is a top view schematic diagram of the cooperation between the second support column and the movable unit of the utility model.

[0035] Figure 5 This is a schematic diagram of one form of the matching piece of the utility model.

[0036] Figure 6It is a schematic diagram of another form of the matching piece of the utility model.

[0037] Figure 7 This is a schematic diagram of the exploded state of one form of the matching part of the utility model.

[0038] Figure 8 It is a schematic diagram of the matching state of the first rack and the first gear on the second pillar of the utility model.

[0039] Fig. 9 It is a schematic diagram showing the four corners of the second pillar of the utility model.

[0040] Fig.10 It is a schematic diagram of the cooperation between the connecting frame and the hollow outer sleeve of the utility model. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0042] Embodiment 1:

[0043] See also Figure 1-Figure 10 An electric tool stand comprises a base frame 1, a driving unit, a first support column 2, a second support column 3 and a third support column 4, wherein the driving unit is mounted on the base frame 1, and corresponding movable units 5 are mounted on the first support column 2, the second support column 3 and the third support column 4 respectively.

[0044] The bottom surface of the base frame 1 is a flat surface and can be placed on the ground as a support. A hand frame 11 is fixed to one side of the base frame 1. The hand frame 11 is extended upward from the base frame 1. A frame body 13 for installing walking wheels 12 is fixed on the base frame 1 or on the support of the hand frame 11. One walking wheel 12 can be set on each side. The cooperation between the walking wheel 12 and the hand frame 11 facilitates the transfer of the overall position of the device. During specific operation, the walking wheel 12 is used as a fulcrum, and the entire device is lifted off the ground and suspended in the air through the hand frame 11, and then the entire device can be pushed to move.

[0045] In this embodiment, the first pillar 2 is fixed to the top surface of the base frame 1 and is arranged longitudinally, such as vertically on the base frame. The corresponding movable unit is mounted on the outer wall of the first pillar 2 and can move longitudinally along the outer wall of the first pillar 2.

[0046] In this embodiment, the movable unit 5 includes a hollow outer shell 51 and a matching piece 52 rotatably disposed in the hollow outer shell 51. As one of the options, the hollow outer shell 51 can be designed as a member with a hollow interior and openings at both ends, and the overall shape is a square. The matching piece 52 includes a conical surface 521 abutting against the outer wall of the corresponding support (including the first support, the second support and the second support). In this embodiment, the four corners of the support (including the first support, the second support and the second support) are respectively provided with inclined surfaces 61 adapted to the conical surface 521, such as Figure 4 As shown, after the fitting 52 is assembled on the hollow outer sleeve 51 and the movable unit is mounted on the corresponding pillar, the outer wall of the cone surface 521 fits on the inclined surface 61 of the corner of the pillar to form a surface-to-surface fit, while not affecting the sliding movement of the movable unit on the corresponding pillar, thereby ensuring that the movable unit and the components installed on the corresponding movable unit are more stable (including the second pillar, the third pillar and the power tool).

[0047] In this embodiment, a bracket 14 is fixed on the base 1, and the driving unit includes a motor 71 fixed on the base 1 and a screw 72 rotatably mounted on the bracket 14. As one of the options, a turbine is fixed at the bottom of the screw 72, and the turbine and the screw can rotate synchronously. A worm gear that cooperates with the turbine is rotatably configured on the bracket 14, and one end of the worm gear extends outside the bracket 14 and is transmission-connected to the motor 71. The motor is used as a power source, and after it is started, it can drive the screw 72 to rotate, including forward rotation and reverse rotation of the screw 72.

[0048] As one option, the worm and the motor are connected to each other through a chain or a belt, such as a sprocket matched with the chain or a pulley matched with the belt is arranged at the outer end of the worm and the outer end of the motor output shaft.

[0049] The second pillar 3 cooperates with the screw rod 72, and both are arranged longitudinally, such as being designed vertically relative to the base. The second pillar 3 is mounted on the screw rod 72, and a nut that cooperates with the screw rod 72 is fixed on its inner wall, so that the second pillar 3 can be driven to rise and fall when the screw rod 72 rotates.

[0050] The movable unit installed on the second pillar 3 is the same as the movable unit installed on the first pillar 2. The third pillar 4 is installed on the movable unit there, and the electric tool 9 can be installed on the third pillar 4. Therefore, the lifting and lowering of the second pillar 3 in the above text can drive the lifting and lowering of the electric tool 9. In order to further increase the lifting range of the electric tool 9, in this embodiment, a longitudinally arranged first rack 31 is fixed on the outer wall of the second pillar 3, and a first gear 32 meshing with the first rack 31 is rotatably connected in the movable unit installed on the second pillar 3. The first gear 32 is transmission-connected to a first motor 33 fixed on the movable unit.

[0051] Specifically, both ends of the first gear 32 are rotatably connected to the hollow outer sleeve 51, and one end thereof extends outside the hollow outer sleeve 51 so as to be transmission-connected to the first motor 33. Since the hollow outer sleeve 51 at this location needs to have a corresponding space to avoid the first rack 31 when it moves longitudinally, Figure 3 As shown, the first rack 31 can pass through the hollow outer sleeve 51 when the movable unit moves longitudinally. Therefore, in this embodiment, there are two forms of the matching member 52. The first form is as follows: Figure 5 As shown, the whole is relatively long, and has two conical components at both ends, each having a conical surface 521. This form is arranged at one end of the hollow outer sleeve 51 away from the first rack 31, as shown in FIG. Figure 4 As shown; for another form, Figure 6 , Figure 7 As shown, the whole is relatively short, and an extension wall 511 for installing this type of matching piece is provided in the hollow outer sleeve 51. This type has a conical surface 521, which can be installed on the hollow outer sleeve 51 by a bolt 522. Further, a bearing 523 can be arranged between the bolt 522 and the matching piece of this type to improve its rotation smoothness. This type of matching piece is arranged at one end of the hollow outer sleeve close to the first rack 31, as shown in FIG. Figure 4 As shown, there is a gap between the two mating parts of this type, and the gap is used to provide a movable space for the first rack 31.

[0052] After the above-mentioned matching pieces are arranged, the four corners of the corresponding pillars are provided with matching conical surfaces, thereby improving the stability of each movable part during movement.

[0053] For the movable unit on the pillar without corresponding rack (such as the first pillar), two relatively long matching parts can be directly installed, or the movable unit can be designed to include two types of matching parts for the convenience of parts coordination.

[0054] In this embodiment, a connecting frame 8 is fixed on the movable unit installed on the second support column 3. Figure 1 , Figure 2 , Fig.10 shown.

[0055] The connecting frame 8 is provided with a mounting hole 81 and an arc-shaped mounting groove 82. The third pillar 4 is rotatably connected to the connecting frame 8 via a pin installed at the mounting hole 81. The arc-shaped mounting groove 82 is provided with a locking screw that cooperates with the third pillar 4. The positioning angle of the third pillar 4 can be adjusted by loosening or tightening the locking screw. The specific structure of this part can refer to the existing design.

[0056] The third pillar 4 is installed on the connecting frame 8. Not only can its positioning angle be adjusted on the connecting frame 8, but it can also be raised and lowered along with the raising and lowering of the corresponding movable unit. The movable unit assembled on the third pillar 4 is the same as the movable unit assembled on the second pillar 3. A second rack (which can be set on the bottom surface of the third pillar) is fixed on its outer wall. A second gear meshing with the second rack is rotatably connected in the movable unit installed on the third pillar 4. The second gear is transmission-connected to the second motor fixed on the movable unit. The structure here can refer to the relevant structure on the second pillar and will not be described in detail.

[0057] At the same time, the movable unit on the third support 4 has an installation position for installing the electric tool 9, such as the electric tool 9 is installed on the top surface of the hollow jacket at this location, such as Figure 1 shown.

[0058] The electric tool installed on the electric tool bracket of the present application can be raised and lowered along with the raising and lowering of the second pillar, can be raised and lowered along with the raising and lowering of the movable unit on the second pillar, can change the set angle along with the angle adjustment of the third pillar, and can move forward or backward along with the forward and backward movement of the movable unit on the third pillar.

[0059] Embodiment 2:

[0060] Compared with Example 1, this embodiment differs in that it does not have the first pillar and the driving unit, and the second pillar replaces the first pillar and is fixedly installed on the base frame. The lifting and lowering of the electric tool only depends on the lifting and lowering action of the movable unit installed on the second pillar, and the rest are the same.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric tool stand, characterized in that: It comprises a base frame, a driving unit, a first support, a second support and a third support, wherein the driving unit is mounted on the base frame, and corresponding movable units are mounted on the first support, the second support and the third support respectively; The first support column is fixedly mounted on the base frame, and the second support column is connected with a movable unit mounted on the first support column and driven by the driving unit to move longitudinally; The third support column is cooperatively connected with the movable unit installed on the second support column and can be raised and lowered along with the movable unit; The movable unit on the third pillar has an installation position for installing an electric tool; The movable unit comprises a hollow outer shell and a matching piece rotatably arranged in the hollow outer shell, and the matching piece comprises a conical surface abutting against the outer wall of the corresponding pillar.

2. The electric tool stand according to claim 1, characterized in that: The driving unit includes a motor fixed on the base frame and a screw rod longitudinally and rotatably installed on the base frame. The screw rod is connected to the motor in a transmission manner. The second pillar is sleeved on the screw rod and has a nut on its inner wall that cooperates with the screw rod in transmission.

3. The electric tool stand according to claim 2, characterized in that: A bracket is fixed on the base frame, the screw is rotatably mounted on the bracket, a turbine is fixed at the bottom of the screw, a worm matched with the turbine is rotatably arranged on the bracket, one end of the worm extends outside the bracket and is transmission-connected to the motor; The worm and the motor are connected via a chain or belt transmission.

4. An electric tool stand according to any one of claims 1 to 3, characterized in that: A first rack is fixed on the outer wall of the second pillar, a first gear meshing with the first rack is rotatably connected in a movable unit installed on the second pillar, and the first gear is transmission-connected to a first motor on the fixed movable unit.

5. The electric tool stand according to claim 1, characterized in that: The corners of the first pillar, the second pillar and the third pillar are respectively provided with inclined surfaces matched with the conical surface.

6. An electric tool stand, characterized in that: It comprises a base frame, a second support and a third support, wherein the second support and the third support are respectively provided with corresponding movable units; The second pillar is fixedly mounted on the base frame, a first rack is fixed on the outer wall of the second pillar, a first gear meshing with the first rack is rotatably connected in a movable unit mounted on the second pillar, and the first gear is transmission-connected to a first motor on the fixed movable unit; The third support column is cooperatively connected with the movable unit installed on the second support column and can be raised and lowered along with the movable unit; The movable unit on the third pillar has an installation position for installing an electric tool; The movable unit comprises a hollow outer shell and a matching piece rotatably disposed in the hollow outer shell, wherein the matching piece comprises a conical surface abutting against the outer wall of the corresponding support; The corners of the second support and the third support are respectively provided with inclined surfaces matched with the conical surface.

7. The electric tool stand according to claim 1 or 6, characterized in that: A second rack is fixed on the outer wall of the third pillar, a second gear meshing with the second rack is rotatably connected in a movable unit installed on the third pillar, and the second gear is transmission-connected to a second motor fixed on the movable unit.

8. The electric tool stand according to claim 1 or 6, characterized in that: A connecting frame is fixed on the movable unit installed on the second pillar, and a mounting hole and an arc-shaped mounting groove are provided on the connecting frame. The third pillar is rotatably connected to the connecting frame via a pin installed at the mounting hole, and a locking screw matching the third pillar is arranged at the arc-shaped mounting groove, so that the positioning angle of the third pillar can be adjusted by loosening or tightening the locking screw.

9. The electric tool stand according to claim 1 or 6, characterized in that: A handrail and a plurality of walking wheels are fixed on the base frame.

10. The electric tool stand according to claim 1 or 6, characterized in that: The matching piece has one or two conical surfaces for adapting to the outer wall of the corner of one or two corresponding pillars; The four corners of the corresponding pillars are respectively provided with conical surfaces matched therewith.

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