Troweling machine with automatic flameout function

Abstract

The utility model discloses a troweling machine with an automatic flameout function, and relates to the technical field of troweling machines, the troweling machine comprises a gasoline engine and a switch, a troweling assembly is fixedly connected to a bottom output shaft of the gasoline engine, a connecting handle is fixedly connected to the troweling assembly, one end, far away from the troweling assembly, of the handle is fixedly connected with a grip, and the handle is fixedly connected with the switch. The switch is fixedly connected to one end of the grip, the switch comprises a mounting column and a connecting column, the connecting column is fixedly connected to the bottom of the mounting column, a mounting groove is formed in the center of the mounting column, rotating shafts are fixedly connected to the two sides of the inner wall of the mounting groove, and pressing handles are rotationally connected to the rotating shafts. According to the troweling machine with the automatic flameout function, a switch structure is arranged on the handle, in the using process of the troweling machine, after the troweling machine slips out of the hand, the troweling machine can automatically stop, and the situation that personal safety of field workers is injured due to out-of-control is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of trowel machines, in particular to a trowel machine with an automatic flameout function. Background Art

[0002] The trowel machine is also called a finishing machine. Its main structure is a trowel rotor driven by a gasoline engine 1. A trowel is installed on the bottom of the cross in the middle of the rotor. The inclination direction of the trowel is consistent with the rotation direction of the rotor. The gasoline engine 1 drives the V-belt to rotate the trowel rotor. The bottom trowel machine can be widely used in the slurry raising, leveling and polishing of concrete surfaces in high-standard factories, warehouses, parking lots, squares, airports and frame buildings. It is the preferred tool in concrete construction.

[0003] During the use of existing trowel machines, due to the vibration of the equipment and the rotational friction, the trowel may slip out of the hands while working. Since the equipment is in a working state, the device may rotate out of control after being slipped out of the hands, posing a certain threat to the safety of the workers.

[0004] Therefore, it is necessary to propose a trowel with an automatic flameout function to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a trowel with an automatic shutoff function to solve the problem in the prior art that the existing trowel may slip out of the hands during use due to the vibration of the equipment and the friction of rotation. Since the equipment is in a working state, the device may rotate out of control after being slipped out of the hands, posing a certain threat to the safety of the staff.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a trowel machine with automatic flameout function, comprising a gasoline engine and a switch, a trowel assembly is fixedly connected to the bottom output shaft of the gasoline engine, a connecting handle is fixedly connected to the trowel assembly, an end of the handle away from the trowel assembly is fixedly connected to a grip, the switch is fixedly connected to one end of the grip, the switch comprises a mounting column and a connecting column, the connecting column is fixedly connected to the bottom of the mounting column, a mounting groove is provided at the center of the mounting column, a rotating shaft is fixedly connected at both sides of the inner wall of the mounting groove, a pressing handle is rotatably connected to the rotating shaft, a tension spring is fixedly connected between the bottom surface of one end of the pressing handle located inside the mounting groove and the bottom of the mounting groove, a push rod with a lower end extending into the interior of the connecting column is movably arranged at the bottom center of the bottom of the mounting column, and a first spring sheet and a second spring sheet are respectively arranged on both sides of the inner circular surface of the connecting column.

[0009] Preferably, a convex ring is provided at one end of the push rod located inside the mounting groove.

[0010] Preferably, a limiting ring located outside the top rod is provided at the bottom of the installation location.

[0011] Preferably, the first spring sheet and the second spring sheet are both made of elastic metal, the top of the first spring sheet is located at the bottom of the top rod, and the end thereof overlaps below the second spring sheet.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a trowel machine with an automatic flameout function, which has the following beneficial effects:

[0014] 1. The trowel with automatic flameout function is provided with a switch structure on the handle. When the device is out of hand during use, the device can be automatically shut down to avoid loss of control and harm to the personal safety of on-site workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric schematic diagram of the utility model;

[0016] Figure 2 It is an enlarged schematic diagram of the switch structure of the utility model;

[0017] Figure 3 It is a side cross-sectional schematic diagram of the switch structure of the utility model.

[0018] In the figure: 1. gasoline engine; 2. polishing assembly; 3. connecting handle; 4. convex ring; 5. connecting column; 6. pressing handle; 7. tension spring; 8. switch; 9. limit ring; 10. first spring piece; 12. second spring piece; 13. push rod; 14. convex ring; 15. rotating shaft; 16. grip; 17. mounting groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3As shown, a trowel machine with an automatic flameout function includes a gasoline engine 1 and a switch 8. A trowel assembly 2 is fixedly connected to the bottom output shaft of the gasoline engine 1, and a connecting handle 3 is fixedly connected to the trowel assembly 2. The end of the handle 3 away from the trowel assembly 2 is fixedly connected to a grip 16. By arranging a switch 8 structure on the grip 16, when the device is out of hand during use, the device can be automatically shut down to avoid loss of control and causing harm to the personal safety of on-site workers. The switch 8 is fixedly connected to one end of the grip 16. The switch 8 includes The mounting column 4 and the connecting column 5, the connecting column 5 is fixedly connected to the bottom of the mounting column 4, a mounting groove 17 is opened at the center of the mounting column 4, a rotating shaft 15 is fixedly connected to both sides of the inner wall of the mounting groove 17, a pressing handle 6 is rotatably connected to the rotating shaft 15, a tension spring 7 is fixedly connected between the bottom surface of one end of the pressing handle 6 located inside the mounting groove 17 and the bottom of the mounting groove 17, a push rod 13 with its lower end extending into the interior of the connecting column 5 is movably arranged at the bottom center of the mounting column 4, and a first spring leaf 10 and a second spring leaf 12 are respectively arranged on both sides of the inner circular surface of the connecting column 5.

[0021] A convex ring 14 is provided at one end of the push rod 13 located inside the mounting groove 17 . The convex ring 14 can play a limiting role to prevent the push rod 13 from over-compressing the first elastic sheet 10 .

[0022] A limiting ring 9 is provided at the bottom of the installation position and is located outside the push rod 13 to ensure that the push rod 13 will not tilt when it is raised or lowered.

[0023] The first spring piece 10 and the second spring piece 12 are both made of elastic metal. The top of the first spring piece 10 is located at the bottom of the top rod 13 and the end thereof overlaps the bottom of the second spring piece 12 .

[0024] Working principle: During the use of the device, when starting the gasoline engine 1, hold the pressing handle 6 at the grip 16 tightly, the inner protrusion of the pressing handle 6 is separated from the push rod 13, and the first spring piece 10 pushes the push rod 13 upward, so that the first spring piece 10 and the second spring piece 12 are in contact to form a passage, and the gasoline engine 1 can be started normally. After the device is released, the tension spring 7 pulls the top front end of the pressing handle 6 downward, and the protrusion of the pressing handle 6 squeezes the push rod 13 downward, and the bottom end of the push rod 13 presses the first spring piece 10 downward, the first spring piece 10 is separated from the second spring piece 12, the device is disconnected, the gasoline engine 1 is turned off, and the equipment stops working.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trowel with automatic flameout function, characterized in that: The invention comprises a gasoline engine (1) and a switch (8), wherein a trowel assembly (2) is fixedly connected to the bottom output shaft of the gasoline engine (1), a connecting handle (3) is fixedly connected to the trowel assembly (2), an end of the handle (3) away from the trowel assembly (2) is fixedly connected to a grip (16), the switch (8) is fixedly connected to one end of the grip (16), the switch (8) comprises a mounting column (4) and a connecting column (5), the connecting column (5) is fixedly connected to the bottom of the mounting column (4), and a connection hole is provided at the center of the mounting column (4). A mounting groove (17) is provided, and a rotating shaft (15) is fixedly connected to both sides of the inner wall of the mounting groove (17), and a pressing handle (6) is rotatably connected to the rotating shaft (15), and a tension spring (7) is fixedly connected between the bottom surface of one end of the pressing handle (6) located inside the mounting groove (17) and the bottom of the mounting groove (17), and a push rod (13) whose lower end extends into the interior of the connecting column (5) is movably arranged at the bottom center of the mounting column (4), and a first spring sheet (10) and a second spring sheet (12) are respectively arranged on both sides of the inner circular surface of the connecting column (5).

2. The trowel with automatic flameout function according to claim 1, characterized in that: A convex ring (14) is provided at one end of the push rod (13) located inside the mounting groove (17).

3. The trowel with automatic flameout function according to claim 1, characterized in that: A limiting ring (9) located outside the top rod (13) is arranged at the bottom of the installation location.

4. The trowel with automatic flameout function according to claim 1, characterized in that: The first spring piece (10) and the second spring piece (12) are both made of elastic metal; the top end of the first spring piece (10) is located at the bottom of the top rod (13) and the end portion is overlapped below the second spring piece (12).

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