Troweling machine handle release sensing mechanism

Abstract

The utility model discloses a troweling machine handle release sensing mechanism which comprises a troweling machine body, a fixing rod is fixedly connected to the outer side of the troweling machine body, a connecting hand rod is installed at the end, away from the troweling machine body, of the fixing rod, a grip piece is fixedly connected to the outer side of the connecting hand rod, and an out-of-control preventing assembly is arranged on the grip piece. The out-of-control preventing assembly comprises a mounting groove formed in the side wall of the grip piece. According to the troweling machine, the out-of-control prevention assembly is arranged on the grip part, so that when the troweling machine is used, an operator needs to hold an extrusion strip by hand, a connecting contact base on the extrusion strip makes contact with a fixed contact base on the cover plate through cooperation of a sliding base and a sliding groove, a reset spring conducts extrusion, and therefore a whole wire forms a path, and the troweling machine body is started to run; and when the hand of the operator is separated from the grip piece, the reset spring performs reset operation, and the connecting contact seat is separated from the fixed contact seat, so that the whole wire is disconnected, the troweling machine body stops running, and the phenomenon that the troweling machine body is 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 handle-off-hand sensing mechanism. Background Art

[0002] The trowel machine, also known as the cement finishing machine, is a machine for rough and fine finishing of concrete surfaces. The surface constructed by the machine is smoother and flatter than the surface constructed by manual labor. It can greatly improve the density and wear resistance of the concrete surface. It can be widely used in the slurry raising, leveling and finishing of concrete surfaces in roads, high-standard factories, warehouses, parking lots, squares, airports and frame buildings. It is the preferred machine in concrete construction. The trowel machine can smooth 100 to 30m2 per hour, which is more than 10 times more efficient than manual labor.

[0003] The existing trowels may lose control due to improper operation during use. That is, if the operator accidentally leaves the handrail handle with both hands during the operation of the equipment, the handrail will rotate at high speed around the disc, and the operator cannot get close to the equipment to close it when the handrail rotates at high speed, resulting in loss of control. Once the equipment loses control, it must wait until the fuel in the fuel tank of the fuel engine is exhausted before it stops naturally. Therefore, the loss of control of the trowel not only seriously affects the construction progress and seriously damages the construction ground, but also poses a serious threat to the life safety of surrounding personnel. The main reason why the hand-held trowel is prone to loss of control is that the gasoline engine throttle switch is a fixed switch. After the throttle is adjusted, the gasoline engine runs at a certain speed, so the operator does not need to adjust the throttle during use. However, once the trowel is accidentally released from the hand, it will lose control. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and provides a trowel handle slip-off sensing mechanism.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: comprising a trowel body, a fixing rod is fixedly connected to the outside of the trowel body, a connecting hand rod is installed at one end of the fixing rod away from the trowel body, a grip is fixedly connected to the outside of the connecting hand rod, and an anti-loss of control component is provided on the grip;

[0006] The anti-loss-control component includes a mounting groove opened on the side wall of the handle piece, a cover plate is installed on the inner side of the mounting groove, one end of the cover plate located on the inner side of the mounting groove is fixedly connected to a fixed contact seat, one end of the cover plate located on the inner side of the mounting groove is fixedly connected to a reset spring, the other end of the reset spring is fixedly connected to an extrusion strip that passes through and extends to the outside of the handle piece, one end of the extrusion strip close to the cover plate is fixedly connected to a connecting contact seat, and the outer sides of the connecting contact seat and the fixed contact seat are both fixedly connected with a wire that passes through and extends to the outside of the handle piece.

[0007] By adopting the above technical solution and providing an anti-loss-of-control component, it is possible to effectively prevent the trowel body from accidentally slipping out of hands and causing a loss of control.

[0008] Furthermore, there are two handles, and anti-slip pads are fixedly connected to the outer sides of the two handles.

[0009] By adopting the above technical solution and providing the anti-skid pad, the friction between the palm and the grip can be increased to prevent the palm and the grip from slipping.

[0010] Furthermore, a sliding groove is provided on the inner side wall of the installation groove, and the number of the sliding grooves is two, and the two sliding grooves are of the same length and are at the same horizontal position.

[0011] By adopting the above technical solution and setting of the slide groove, the slider can be moved.

[0012] Furthermore, the specifications of the cover plate are adapted to the specifications of the mounting groove, and the cover plate is fixedly connected to the handle member via fixing bolts.

[0013] By adopting the above technical solution, the cover plate is fixed by fixing bolts, so that the return spring can be disassembled and replaced.

[0014] Furthermore, sealing pads are fixedly connected to both sides of the extrusion strip, and the other side of the sealing pad is in contact with the side wall of the mounting groove. A sliding block is fixedly connected to the outer side of the extrusion strip, and the sliding block slides on the inner side of the sliding groove.

[0015] By adopting the above technical solution, the slide block and the slide groove cooperate with each other, so that the extrusion strip can move in a directional manner.

[0016] Furthermore, a shock-absorbing component is provided between the fixed rod and the connecting handle, and the shock-absorbing component includes a mounting seat fixedly installed on the outer side of the fixed rod, a fixing column is fixedly connected to the inner side of the mounting seat, a sliding seat fixedly connected to the connecting handle is movably connected to the outer side of the fixing column, and a shock-absorbing airbag is fixedly connected to the inner side wall of the mounting seat.

[0017] By adopting the above technical solution and arranging the shock-absorbing part, with the cooperation of the shock-absorbing airbag, the vibration of the trowel body to the connecting hand rod can be reduced, the fatigue degree can be reduced, and the operation time can be prolonged.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. By setting an anti-loss-of-control component on the handle, the operator needs to hold the extrusion bar in hand when in use, and through the cooperation of the slide seat and the slide groove, the connecting contact seat on the extrusion bar contacts the fixed contact seat on the cover plate, and the reset spring is squeezed, so that the entire wire forms a passage, and the trowel machine body starts to run. When the operator's hand leaves the handle, the reset spring performs a reset operation, and the connecting contact seat is separated from the fixed contact seat, so that the entire wire is disconnected and the trowel machine body stops running, thereby avoiding the loss of control of the trowel machine body. At the same time, the existing trowel machine body also needs the operator to hold the handle when in use, so the setting of the anti-loss-of-control component does not increase the difficulty of operating the trowel machine body; 2. By setting a shock-absorbing component, with the cooperation of the shock-absorbing airbag, the vibration of the trowel machine body to its handle is weakened, which can reduce the impact of vibration on the body, reduce fatigue, and extend the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the top view of the trowel body of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the handle of the utility model;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the mounting seat of the utility model in side view.

[0023] In the figure: 1. trowel body; 2. fixing rod; 3. connecting hand rod; 4. grip piece; 401. anti-skid pad; 5. anti-loss of control component; 51. mounting groove; 511. slide groove; 52. cover plate; 53. fixed contact seat; 54. return spring; 55. extrusion strip; 551. sealing pad; 552. slider; 56. connecting contact seat; 57. wire; 6. shock absorbing part; 61. mounting seat; 62. fixing column; 63. sliding seat; 64. shock absorbing airbag. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution 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.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figure 1 —3, the specific scheme of the embodiment is as follows: it includes a trowel body 1, the outer side of the trowel body 1 is fixedly connected with a fixing rod 2, the end of the fixing rod 2 away from the trowel body 1 is installed with a connecting hand rod 3, the outer side of the connecting hand rod 3 is fixedly connected with a grip piece 4, the number of the grip pieces 4 is two, and the outer sides of the two grip pieces 4 are fixedly connected with anti-skid pads 401, the setting of the anti-skid pads 401 can effectively increase the friction between the grip piece 4 and the palm, and prevent the palm from easily falling off the grip piece 4, and the grip piece 4 is provided with an anti-loss of control component 5.

[0027] The anti-loss-of-control component 5 includes a mounting groove 51 provided on the side wall of the grip 4, the side wall of the mounting groove 51 is provided with a through hole, the inner side wall of the mounting groove 51 is provided with a slide groove 511, the number of the slide grooves 511 is two, the two slide grooves 511 are of the same length and are at the same horizontal position, a cover plate 52 is installed on the inner side of the mounting groove 51, the specification of the cover plate 52 is adapted to the specification of the mounting groove 51, and the cover plate 52 is fixedly connected to the grip 4 by fixing bolts, and the setting of the fixing bolts makes the cover plate 52 convenient to be disassembled and assembled;

[0028] One end of the cover plate 52 located inside the installation groove 51 is fixedly connected to a fixed contact seat 53 , and one end of the cover plate 52 located inside the installation groove 51 is fixedly connected to a return spring 54 . There are two return springs 54 , which are distributed in this direction.

[0029] The other end of the return spring 54 is fixedly connected with an extrusion strip 55 that penetrates and extends to the outside of the grip 4. The specifications of the extrusion strip 55 are adapted to the specifications of the mounting groove 51. Both sides of the extrusion strip 55 are fixedly connected with sealing pads 551. The other side of the sealing pad 551 fits with the side wall of the mounting groove 51. The setting of the extrusion strip 55 can prevent dust and water from entering the inner side of the mounting groove 51. The outer side of the extrusion strip 55 is fixedly connected with a slider 552, and the slider 552 slides on the inner side of the slide groove 511. The cooperation between the slider 552 and the slide groove 511 allows the extrusion strip 55 to move in a directional manner. The extrusion strip 55 and the outer side of the cover plate 52 are fixedly connected with a wire clamping seat.

[0030] A connecting contact seat 56 is fixedly connected to one end of the extrusion strip 55 close to the cover plate 52. The connecting contact seat 56 and the fixed contact seat 53 are respectively located in the middle position of the extrusion strip 55 and the cover plate 52. The outer sides of the connecting contact seat 56 and the fixed contact seat 53 are fixedly connected with a wire 57 that penetrates and extends to the outside of the handle 4. The wire 57 is installed on the wire clamping seat. The wire 57 passes through the perforation and is electrically connected to the starting device of the trowel machine body 1.

[0031] A shock absorbing member 6 is provided between the fixed rod 2 and the connecting handle bar 3, and the shock absorbing member 6 includes a mounting seat 61 fixedly mounted on the outer side of the fixed rod 2, and the side surface of the mounting seat 61 is "concave", and a fixing column 62 is fixedly connected to the inner side of the mounting seat 61, and a sliding seat 63 fixedly connected to the connecting handle bar 3 is movably connected to the outer side of the fixing column 62, and the sliding seat 63 is rectangular, and a sliding hole is opened at the center position of the sliding seat 63, and the specifications of the sliding hole are adapted to the specifications of the fixed column 62, and a shock absorbing airbag 64 is fixedly connected to the inner side wall of the mounting seat 61, and the shock absorbing airbags 64 are distributed at both ends of the sliding seat 63, and the shock absorbing airbags 64 are ring-shaped.

[0032] The working principle of the above embodiment is:

[0033] When the operator needs to start the trowel body 1, the operator holds the squeeze bar 55 with his hand, and with the cooperation of the slider 552 and the slide groove 511, the squeeze bar 55 moves toward the inside of the installation groove 51. While moving, the squeeze bar 55 squeezes the reset spring 54. When the connecting contact seat 56 contacts the fixed contact seat 53, the wire 57 forms a passage, and the trowel body 1 is powered on. When the operator's palm accidentally separates from the grip 4, the reset spring 54 performs a reset operation, so that the connecting contact seat 56 on the squeeze bar 55 is separated from the fixed contact seat 53, and a short circuit is formed between the wires 57, and the trowel body 1 cannot be powered on.

[0034] Although the 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 handle-off sensing mechanism, characterized in that: The utility model comprises a trowel machine body (1), the outer side of which is fixedly connected to a fixing rod (2), the end of the fixing rod (2) away from the trowel machine body (1) is provided with a connecting handle (3), the outer side of the connecting handle (3) is fixedly connected to a gripping member (4), and the gripping member (4) is provided with an anti-loss-of-control component (5); The anti-loss-of-control component (5) comprises a mounting groove (51) formed on a side wall of a handle (4), a cover plate (52) being mounted on the inner side of the mounting groove (51), one end of the cover plate (52) located on the inner side of the mounting groove (51) being fixedly connected to a fixed contact seat (53), one end of the cover plate (52) located on the inner side of the mounting groove (51) being fixedly connected to a return spring (54), the other end of the return spring (54) being fixedly connected to an extrusion strip (55) penetrating through and extending to the outer side of the handle (4), one end of the extrusion strip (55) close to the cover plate (52) being fixedly connected to a connecting contact seat (56), and the outer sides of the connecting contact seat (56) and the fixed contact seat (53) being fixedly connected to a wire (57) penetrating through and extending to the outer side of the handle (4).

2. A trowel handle-off sensing mechanism according to claim 1, characterized in that: The number of the gripping pieces (4) is two, and the outer sides of the two gripping pieces (4) are both fixedly connected with anti-slip pads (401).

3. The trowel handle-off sensing mechanism according to claim 1, characterized in that: The inner side wall of the installation groove (51) is provided with a slide groove (511), and the number of the slide grooves (511) is two, and the two slide grooves (511) are of the same length and are located at the same horizontal position.

4. The trowel handle-off sensing mechanism according to claim 1, characterized in that: The specifications of the cover plate (52) are compatible with the specifications of the mounting groove (51), and the cover plate (52) is fixedly connected to the handle member (4) via fixing bolts.

5. The trowel handle-off sensing mechanism according to claim 3, characterized in that: Sealing pads (551) are fixedly connected to both sides of the extrusion strip (55), and the other side of the sealing pad (551) is in contact with the side wall of the installation groove (51). A sliding block (552) is fixedly connected to the outer side of the extrusion strip (55), and the sliding block (552) slides on the inner side of the sliding groove (511).

6. The trowel handle-off sensing mechanism according to claim 1, characterized in that: A shock absorbing member (6) is provided between the fixed rod (2) and the connecting handle (3), the shock absorbing member (6) comprising a mounting seat (61) fixedly mounted on the outside of the fixed rod (2), a fixing column (62) fixedly connected to the inside of the mounting seat (61), a sliding seat (63) fixedly connected to the connecting handle (3) movably connected to the outside of the fixing column (62), and a shock absorbing airbag (64) fixedly connected to the inner wall of the mounting seat (61).

Images