Pull rod type quick adjusting handle of floor grinding machine

Abstract

The utility model relates to the technical field of floor grinding machines, and provides a pull rod type quick adjusting handle of a floor grinding machine, which comprises a handle, a handle connecting rod, a handle positioning shaft, a handle angle adjusting positioning plate and an angle adjusting positioning shaft, the other end of the handle connecting rod is connected with the handle positioning shaft; a compression spring is arranged between the handle positioning shaft and the handle and is positioned through a spring positioning shaft; the handle positioning shaft is a trapezoid block, the handle angle adjusting positioning plate is arranged on the outer side of the base, trapezoid positioning grooves are formed in the periphery of the edge of the handle angle adjusting positioning plate, and the two ends of the handle positioning shaft are meshed with the trapezoid positioning grooves. The handle is adjusted by driving the handle positioning shaft to be separated from the handle angle adjusting positioning plate through the handle, the handle is loosened after adjustment, the handle positioning shaft is automatically meshed with the trapezoidal positioning groove of the handle angle adjusting positioning plate under the action of the compression spring, and it is guaranteed that gap shaking cannot occur when the handle is connected with a machine body.

Description

Technical Field

[0001] The utility model relates to the technical field of floor grinders, in particular to a pull-rod type quick-adjustment handle for a floor grinder. Background Art

[0002] Floor grinders are primarily used for grinding floors, effectively polishing terrazzo, concrete surfaces, epoxy mortar layers, and old epoxy floors. To accommodate various working angles and heights, improving work efficiency and operator comfort, the grinder handle features a rotatable adjustment handle, allowing the operator to adjust the height and direction according to the specific task.

[0003] The existing adjustment handle structure uses a shaft and hole connection to position the handle, that is, a number of positioning holes are opened on the handle angle adjustment positioning plate. The knob structure between the hand angle adjustment positioning plates on both sides is rotated to drive the positioning shafts at both ends to extend and retract, thereby realizing the connection and cooperation between the shaft and the hole. However, there is a gap between the shaft and the hole, which causes the handle to shake a lot, affecting the operation of the machine. Utility Model Content

[0004] In response to the problems in the background technology, the utility model has developed a pull-rod type quick-adjustment handle for a floor grinder. The handle shaft adopts a trapezoidal angle and is fully engaged with the handle angle positioning plate, which can ensure that there is no gap or shaking when the handle is connected to the machine body.

[0005] To achieve the above objectives, the technical solutions of this utility model are as follows:

[0006] A pull-rod type quick-adjustment handle for a floor grinder comprises a handle, a base connected to the handle, a handle, a handle connecting rod, a handle positioning shaft, a compression spring, a handle angle adjustment positioning plate, a spring positioning shaft and an angle adjustment positioning shaft; wherein, the handle is arranged on one side of the base, one end of which is arranged on the outside of the base, and the other end passes through a handle adjustment hole opened on the base and is hinged to the other side of the base; one end of the handle connecting rod is connected to the handle, and the other end is connected to the handle positioning shaft; a compression spring is provided between the handle positioning shaft and the handle, and the compression spring is positioned by the spring positioning shaft; the handle positioning shaft is a trapezoidal block, two ends of which extend out of the positioning shaft adjustment holes corresponding to those arranged on the base, the handle angle adjustment positioning plates are provided on both sides outside the base, and are connected to the base through the angle adjustment positioning shaft, and the base can rotate around the angle adjustment positioning shaft, and a number of trapezoidal positioning grooves are opened around the edge of the handle angle adjustment positioning plate, and the two ends of the handle positioning shaft are meshed with the trapezoidal positioning grooves.

[0007] Preferably, a connecting block 1 is installed in the other side of the base, and the other end of the handle is hinged to the connecting block 1.

[0008] Preferably, the handle connecting rod is connected to the middle portion of the handle and the handle positioning shaft respectively.

[0009] Preferably, the handle angle adjustment positioning plate is circular.

[0010] Preferably, a second connecting block is installed on the inner side of the base between the handle and the handle positioning shaft, one end of the compression spring is connected to the second connecting block, and the other end is connected to the spring positioning shaft provided on the handle positioning shaft.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This new design allows the handle's positioning axis to move backward by pulling the handle, disengaging it from the handle's angle adjustment plate, thereby adjusting the handle's direction and height. Once adjusted, releasing the handle causes the compression spring to move the axis forward, automatically engaging the trapezoidal positioning groove in the handle's angle adjustment plate. The trapezoidal angle of the axis fully engages the handle's angle adjustment plate, ensuring a smooth, stable connection between the handle and the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the forward structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the reverse structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the top view structure of the utility model.

[0016] Figure 4 Bit Figure 3 Schematic diagram of the structure in the middle B direction.

[0017] In the figure: 1. Handle, 2. Handle connecting rod, 3. Handle positioning shaft, 4. Compression spring, 5. Handle angle adjustment positioning plate, 6. Spring positioning shaft, 7. Angle adjustment positioning shaft, 8. Base plate, 9. Handle, 10. Base, 11. Connecting block 1, 12. Connecting block 2, 13. Bolt. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0019] like Figure 1 and Figure 2As shown, the utility model is a pull rod type quick adjustment handle for a floor grinder, including a handle 9, a base 10 connected to the handle (the handle and the base are both existing structures), a handle 1, a handle connecting rod 2, a handle positioning shaft 3, a compression spring 4, a handle angle adjustment positioning plate 5, a spring positioning shaft 6 and an angle adjustment positioning shaft 7.

[0020] The handle 1 is mounted on one side of the base 10. The base includes a bottom plate 8 and a side plate. One end of the handle 1 is mounted on one side of the base, and the other end passes through a handle adjustment hole in the side plate and is hinged to the other side plate of the base. Specifically, a connecting block 11 is provided within the other side plate of the base, and the other end of the handle 1 is hinged to the connecting block 11.

[0021] One end of the handle connecting rod 2 is connected to the handle 1, and the other end is connected to the handle positioning shaft 3. A compression spring 4 is interposed between the handle positioning shaft and the handle 2. Specifically, a second connecting block 12 is mounted on the inside of the base 10, between the handle 1 and the handle positioning shaft 3. One end of the compression spring 4 is connected to the second connecting block 12, and the other end is connected to the spring positioning shaft 6 provided on the handle positioning shaft 3.

[0022] The handle positioning shaft 3 is a trapezoidal block, with its ends extending outward from corresponding positioning shaft adjustment holes in the base. A circular handle angle adjustment plate 5 is located on either side of the base and connected to the base 10 via the angle adjustment positioning shaft 7. The handle angle adjustment plate 5 is surrounded by a plurality of trapezoidal positioning grooves, with the ends of the handle positioning shaft 3 meshing with the trapezoidal positioning grooves of the handle angle adjustment plate 5.

[0023] like Figure 3 and Figure 4 As shown, the base 10 can rotate around the angle adjustment positioning shaft 7. Specifically, bolts 13 are installed on both sides of the base bottom plate 8. The bolts 13 pass through the adjustment positioning shaft 7 to connect the adjustment positioning shaft to the bottom plate 8, thereby enabling the base 10 to drive the angle adjustment positioning shaft 7 to rotate in the hole of the handle angle adjustment positioning plate 5.

[0024] Specific operation process:

[0025] When you need to adjust the handle, pull the handle 1 to the left ( Figure 1 (The handle is positioned in the center direction.) The handle positioning shaft 3 is driven to the left by the force of the handle connecting rod 2. At this time, the handle positioning shaft 3 disengages the trapezoidal positioning groove of the handle angle adjustment positioning 5, and the handle 9 can be freely adjusted to move the handle and base up and down about the angle adjustment positioning shaft 7. After adjustment, release the handle 1, and the handle positioning shaft 3 automatically moves to the right under the force of the compression spring 4 until it engages with the trapezoidal positioning groove of the handle angle adjustment positioning 5, achieving locking.

[0026] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pull-rod type quick adjustment handle for a floor grinder, characterized by: It includes a handle, a base connected to the handle, a handle, a handle connecting rod, a handle positioning shaft, a compression spring, a handle angle adjustment positioning plate, a spring positioning shaft and an angle adjustment positioning shaft; wherein, the handle is arranged on one side of the base, one end of which is arranged on the outside of the base, and the other end passes through the handle adjustment hole opened on the base and is hinged to the other side of the base; one end of the handle connecting rod is connected to the handle, and the other end is connected to the handle positioning shaft; a compression spring is arranged between the handle positioning shaft and the handle, and the compression spring is positioned by the spring positioning shaft; the handle positioning shaft is a trapezoidal block, and its two ends respectively extend out of the positioning shaft adjustment holes corresponding to those arranged on the base, and the handle angle adjustment positioning plates are arranged on both sides outside the base and are connected to the base through the angle adjustment positioning shaft. The base can rotate around the angle adjustment positioning shaft, and a number of trapezoidal positioning grooves are opened around the edge of the handle angle adjustment positioning plate, and the two ends of the handle positioning shaft are engaged with the trapezoidal positioning grooves.

2. The pull-rod type quick adjustment handle for a floor grinder according to claim 1, characterized in that: A connecting block 1 is installed in the other side of the base, and the other end of the handle is hinged to the connecting block 1.

3. The pull-rod type quick adjustment handle for a floor grinder according to claim 1, characterized in that: The handle connecting rod is connected to the middle part of the handle and the handle positioning shaft respectively.

4. The pull-rod type quick adjustment handle for a floor grinder according to claim 1, characterized in that: The handle angle adjustment positioning plate is circular.

5. The pull-rod type quick adjustment handle for a floor grinder according to claim 1, characterized in that: A second connecting block is installed on the inner side of the base between the handle and the handle positioning shaft. One end of the compression spring is connected to the second connecting block, and the other end is connected to the spring positioning shaft arranged on the handle positioning shaft.

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