A trowel

Abstract

The utility model relates to a trowelling machine, including frame, be provided with the trowelling mechanism and the water spraying mechanism of spraying to concrete surface for trowelling concrete surface on the frame, the water spraying mechanism includes the nozzle, be provided with the anti -dripping water mechanism on the frame, and the anti -dripping water mechanism is used to avoid to have the water drop from the nozzle to flow out and / or prevent the water drop that flows out from the nozzle to drop to the surface of the concrete of downside when the water spraying mechanism stops working, the above scheme that the utility model provides, through the anti -dripping water mechanism that sets up, thereby avoids the water drop to drop in cement ground when the water spraying mechanism stops working, guarantees the quality of cement ground.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction equipment, specifically to a power trowel. Background Technology

[0002] Power trowels are commonly used to smooth concrete surfaces, improving their smoothness and flatness. A water spray mechanism on the power trowel allows water to be sprayed onto the concrete surface, meeting construction requirements and improving surface quality. However, when water spraying is not needed, water droplets may fall from the nozzles onto the concrete surface, leaving watermarks and affecting surface quality. Therefore, it is necessary to address this issue. Utility Model Content

[0003] The purpose of this invention is to provide a power trowel that can solve the problem of water dripping.

[0004] The specific technical solution adopted in this utility model is as follows.

[0005] A power trowel includes a frame, on which a power troweling mechanism for powering concrete surfaces and a water spraying mechanism for spraying water onto the concrete surface are mounted. The water spraying mechanism includes nozzles, and the frame is provided with an anti-drip mechanism for preventing water droplets from flowing out of the nozzles and / or preventing water droplets flowing out of the nozzles from falling onto the concrete surface below when the water spraying mechanism stops working.

[0006] A further embodiment is as follows: the water spraying mechanism also includes a water storage tank for storing water and a water pump for transporting water, wherein the water inlet of the water pump is connected to the water outlet of the water storage tank through an inlet pipe assembly, and the water outlet of the water pump is connected to each nozzle through an outlet pipe assembly.

[0007] The water outlet assembly includes a main water outlet pipe, one end of which is connected to the outlet of the water pump, and the other end of which is connected to one end of each branch water outlet pipe via a water distribution connector. Each branch water outlet pipe has a nozzle at the other end. The anti-drip mechanism includes a solenoid valve installed on the main water outlet pipe or the branch water outlet pipe.

[0008] The solenoid valve is installed on the main water outlet pipe; the height of the nozzle is greater than the height of the solenoid valve.

[0009] The nozzles are arranged at an angle to direct the water flow.

[0010] There are two nozzles, which correspond to the two sets of polishing cutters on the polishing mechanism.

[0011] The anti-drip mechanism also includes a receiving groove located on the underside of the nozzle for catching water droplets falling from the nozzle.

[0012] Multiple receiving channels are provided, and each receiving channel corresponds to a specific nozzle arrangement.

[0013] The receiving groove is a long strip-shaped groove, and each nozzle is spaced apart on the upper side of the receiving groove along its length.

[0014] Compared with the prior art, the technical effect of this utility model is that by setting an anti-drip mechanism, water droplets are prevented from falling on the cement floor when the water spraying mechanism stops working, thus ensuring the quality of the cement floor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the water spraying mechanism assembled on the frame.

[0017] Drawing number explanation: 10-frame, 11-polishing tool, 21-water tank, 22-water pump, 23-nozzle, 24-inlet pipe assembly, 25-inlet pipe assembly, 26-receiving groove. Detailed Implementation

[0018] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0019] As used herein, the terms “parallel,” “perpendicular,” and the like are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors.

[0020] The technical solution provided by this utility model is as follows: Figure 1 , 2As shown, a power trowel includes a frame 10, on which a power troweling mechanism for powering concrete surfaces and a water spraying mechanism for spraying water onto the concrete surface are mounted. The water spraying mechanism includes nozzles 23. An anti-drip mechanism is provided on the frame 10 to prevent water droplets from flowing from the nozzles 23 and / or to prevent water droplets from falling onto the concrete surface below when the water spraying mechanism stops working. A further embodiment includes a water tank 21 for storing water mounted on the frame 10 and a water pump 22 for transporting water. The inlet of the water pump 22 is connected to the outlet of the water tank 21 via an inlet pipe assembly 24, and the outlet of the water pump 22 is connected to each nozzle 23 via an inlet pipe assembly 25. The inlet pipe assembly 25 includes a main outlet pipe, one end of which is connected to the outlet of the water pump 22, and the other end of which is connected to one end of each outlet branch pipe via a water distribution connector. Each outlet branch pipe has a nozzle 23 installed at its other end. The anti-drip mechanism includes a solenoid valve mounted on the main outlet pipe or an outlet branch pipe. Preferably, the solenoid valve is mounted on the main outlet pipe, thus requiring only one solenoid valve and reducing implementation costs.

[0021] The reason why the nozzle 23 of a traditional power trowel leaks water is that the ordinary water pump 22 does not have a complete water-locking function, and the water tank 21 is higher than the nozzle 23, creating a water level difference that causes the nozzle 23 to drip water. This invention adds a normally closed solenoid valve to the water inlet pipe assembly 25 of the water pump 22. When the water system powers the water pump 22 to operate, it also powers the solenoid valve, causing it to open and allowing water to flow freely. When the water pump 22 stops working, the solenoid valve is de-energized and closes, cutting off the water flow and thus stopping the water flow.

[0022] More specifically, the height of nozzle 23 is greater than the height of the solenoid valve. By raising the position of nozzle 23 above the solenoid valve, when the solenoid valve is closed, residual water in the outlet branch pipe connected to the solenoid valve will no longer leak from nozzle 23. The water outlet direction of nozzle 23 is arranged at an angle, and the angle should not be too large, but can be adjusted according to specific use. There are two nozzles 23, which are respectively arranged to correspond to the two sets of polishing blades 11 on the polishing mechanism. This arrangement provides the best water spraying and leak-proof effect. Furthermore, the anti-drip mechanism also includes a receiving groove 26 on the lower side of nozzle 23 for catching water droplets falling from nozzle 23. The receiving groove 26 further catches dripping water when the solenoid valve fails to stop the water flow. Specifically, there are two implementation methods: one is to set multiple receiving grooves 26, each receiving groove 26 corresponding to one nozzle 23. The other type is a long, narrow receiving groove 26, with nozzles 23 spaced apart along the length of the groove on its upper side. This type can be selected based on specific needs. A sponge can be placed inside the receiving groove to better prevent water droplets from falling.

[0023] In summary, the above-mentioned solution provided by this utility model can effectively solve the problem of dripping at the nozzle of the ride-on power trowel after the water spraying system is used, thereby protecting the newly processed cement floor from damage to its structure and performance by the dripping water.

[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional methods in the field.

Claims

1. A troweling machine comprising a machine frame, a troweling mechanism arranged on the machine frame for troweling a concrete surface, and a water spraying mechanism arranged on the machine frame for spraying water to the concrete surface, characterized in that: The water spraying mechanism includes nozzles, and the frame is equipped with an anti-drip mechanism to prevent water droplets from flowing out of the nozzles and / or to prevent water droplets from flowing out of the nozzles from falling onto the surface of the concrete below when the water spraying mechanism stops working.

2. The power trowel according to claim 1, characterized in that: The water spraying mechanism also includes a water storage tank mounted on the frame for storing water and a water pump for transporting water. The water pump inlet is connected to the water storage tank outlet through an inlet pipe assembly, and the water pump outlet is connected to each nozzle through an outlet pipe assembly.

3. The power trowel according to claim 1 or 2, characterized in that: The water outlet assembly includes a main water outlet pipe, one end of which is connected to the outlet of the water pump, and the other end of which is connected to one end of each branch water outlet pipe via a water distribution connector. Each branch water outlet pipe has a nozzle at the other end. The anti-drip mechanism includes a solenoid valve installed on the main water outlet pipe or the branch water outlet pipe.

4. The power trowel according to claim 3, characterized in that: The solenoid valve is installed on the main water outlet pipe.

5. The power trowel according to claim 3, characterized in that: The height of the nozzle is greater than the height of the solenoid valve.

6. The power trowel according to claim 3, characterized in that: The nozzles are arranged at an angle to direct the water flow.

7. The power trowel according to claim 3, characterized in that: There are two nozzles, which correspond to the two sets of polishing blades on the polishing mechanism.

8. The power trowel according to claim 1 or 2, characterized in that: The anti-drip mechanism also includes a receiving groove located on the underside of the nozzle for catching water droplets falling from the nozzle.

9. The power trowel according to claim 8, characterized in that: Multiple receiving channels are provided, and each receiving channel corresponds to a specific nozzle arrangement.

10. The power trowel according to claim 8, characterized in that: The receiving groove is a long strip-shaped groove, and each nozzle is spaced apart on the upper side of the receiving groove along its length.

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