Cleaning device for wet-spraying concrete spray head

Abstract

The utility model relates to the technical field of concrete wet shotcreting machines, in particular to a wet shotcreting concrete sprayer cleaning device. According to the technical scheme, the wet-spraying concrete sprayer cleaning device comprises a transmission assembly and further comprises a sprayer pipe inner cleaning assembly and a driving motor; the upper end of the transmission assembly is provided with a nozzle in-pipe cleaning assembly; driving motors are arranged at the lower ends of the transmission assemblies. The metal brush and the triangular fish tooth rod are integrally inserted into the inner groove of the upper end opening of the piston type transmission shaft, the triangular fish tooth rod is in transmission with the inner gear of the locking gear frame in the insertion process, and after insertion is completed, bolts on the two sides of the gear of the locking gear frame are locked to prevent the gear from rotating. And a driving motor is matched to drive a transmission shaft sleeve to drive a piston type transmission shaft and a connected metal brush to rotate, so that the cleaning function that the metal brush is inserted into a spray head of the wet spraying machine is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wet concrete spraying machines, and particularly relates to a wet concrete spraying nozzle cleaning device. Background Art

[0002] A concrete spraying machine is a device specifically designed to wet-spray concrete onto building surfaces. It is widely used in projects such as subway tunnels, water conservancy and hydropower projects, and highways. Its operating principle is to mix concrete, water, and additives, and then spray it at high speed through a nozzle onto the surface to be covered. However, during use, the spraying machine nozzle is prone to clogging or accumulation of concrete debris, which not only affects the spraying effect but can also damage the equipment. Therefore, the development and application of wet spraying machine cleaners are particularly important.

[0003] Some cleaning devices do not fully consider the ease of replacing the cleaning brushes during design, resulting in a complicated and cumbersome replacement process and inconvenience in replacing the cleaning brushes, which also increases maintenance costs and time costs.

[0004] Therefore, in view of the above-mentioned problems of the existing wet-spraying concrete nozzle cleaning device, which is difficult to replace the cleaning brush, resulting in high maintenance costs, difficulty in replacement and inconvenience in cleaning, a wet-spraying concrete nozzle cleaning device can be designed. Utility Model Content

[0005] In order to overcome the problems of the existing wet shot concrete nozzle cleaning device, the cleaning brush thereof is difficult to replace, resulting in high maintenance costs of the cleaning tool, great difficulty in replacement and inconvenience in cleaning.

[0006] The technical solution of the utility model is: a wet spray concrete nozzle cleaning device, including a transmission assembly, a nozzle pipe cleaning assembly, and a drive motor; the nozzle pipe cleaning assembly is provided at the upper end of the transmission assembly; the drive motor is provided at the lower end of the transmission assembly; the transmission assembly includes a transmission shaft sleeve, a piston-type transmission shaft, a return spring, and a protective sleeve; the nozzle pipe cleaning assembly includes a metal brush, a triangular fish tooth rod, and a locking gear rack.

[0007] Preferably, the metal brush and the triangular fish-tooth rod are inserted into the internal groove of the upper port of the piston-type transmission shaft as a whole. During the insertion process, the triangular fish-tooth rod is transmitted with the gear in the locking gear frame. After the insertion is completed, the bolts on both sides of the gear of the locking gear frame are locked to prevent the gear from rotating, thereby realizing the locking connection function of the triangular fish-tooth rod and the locking gear frame. The driving motor drives the transmission shaft sleeve to drive the piston-type transmission shaft and the connected metal brush to rotate, thereby realizing the cleaning function of the metal brush inserted into the wet spraying machine nozzle, solving the problem of the existing wet spraying concrete nozzle cleaning device because its cleaning brush is difficult to replace, resulting in high maintenance cost, difficulty in replacement and inconvenience in cleaning.

[0008] Preferably, a transmission sleeve is provided at the upper end of the driving motor, and the transmission sleeve is transmission-connected to the output end of the driving motor; a piston-type transmission shaft is provided inside the transmission sleeve, and the outer wall groove protrusion strip of the piston-type transmission shaft is vertically slidably connected along the inner wall slide groove of the transmission sleeve, and the piston-type transmission shaft and the transmission sleeve are coaxially rotated and transmitted.

[0009] Preferably, a return spring is provided on the outer wall of the piston drive shaft, and the return spring is provided inside the drive shaft sleeve, and one end of the return spring is fixedly connected to the inner wall of the drive shaft sleeve, and the other end of the return spring is fixedly connected to the outer wall of the piston drive shaft. Since the piston drive shaft and the drive shaft sleeve can only move in the vertical direction, the return spring is compressed when the piston drive shaft is subjected to downward pressure, and the return spring rebounds when the piston drive shaft is not under pressure, thereby effectively avoiding the problem of bending of the piston drive shaft due to excessive pressure. The return spring is used to buffer and protect the piston drive shaft from the vertical downward pressure impact.

[0010] Preferably, a metal brush is provided above the piston transmission shaft; a triangular fish tooth rod is fixedly provided at the lower end of the metal brush, and the triangular fish tooth rod is inserted into the internal sliding groove of the upper end of the piston transmission shaft.

[0011] Preferably, locking gear racks are evenly distributed around the outside of the triangular fish tooth rod, three groups of locking gear racks are provided, and the outer shell of the locking gear rack is fixedly connected to the outer wall of the piston-type transmission shaft, and the triangular fish tooth rod is connected to the locking gear rack teeth.

[0012] Preferably, locking bolts are provided on both sides of the gears of each locking gear rack. After the locking bolts are threadedly locked, the gears of the locking gear rack are locked and cannot be rotated. The metal brush and the triangular fish tooth rod are inserted into the internal groove of the upper port of the piston transmission shaft as a whole. During the insertion process, the triangular fish tooth rod is transmitted with the gears in the locking gear rack. After the insertion is completed, the bolts on both sides of the gears of the locking gear rack are locked to prevent the gears from rotating, thereby realizing the locking connection function of the triangular fish tooth rod and the locking gear rack, and cooperating with the drive motor to drive the transmission shaft sleeve to drive the piston transmission shaft and the connected metal brush to rotate, thereby realizing the cleaning function of the metal brush inserted into the wet spray machine nozzle.

[0013] Preferably, a protective sleeve is provided around the outer side of the movable gap between the drive sleeve and the piston drive shaft, and the protective sleeve is fixedly connected to the outer shell of the drive sleeve. The protective sleeve is used to prevent debris from flying into the gap between the drive sleeve and the piston drive shaft and clogging it and damaging the piston drive shaft.

[0014] Beneficial effects of the utility model:

[0015] 1. The existing wet shot concrete nozzle cleaning device has the problem that the cleaning brush is difficult to replace, resulting in high maintenance cost, difficulty in replacement and inconvenience in cleaning. The metal brush and the triangular fish tooth rod are inserted into the internal groove of the upper port of the piston drive shaft as a whole. During the insertion process, the triangular fish tooth rod is transmitted with the gear in the locking gear frame. After the insertion is completed, the bolts on both sides of the gear of the locking gear frame are locked to prevent the gear from rotating, thereby realizing the locking connection function of the triangular fish tooth rod and the locking gear frame. The drive shaft sleeve is driven by the drive motor to rotate the piston drive shaft and the connected metal brush, thereby realizing the cleaning function of the metal brush inserted into the wet shot concrete nozzle. This solves the problem that the cleaning brush of the existing wet shot concrete nozzle cleaning device is difficult to replace, resulting in high maintenance cost, difficulty in replacement and inconvenience in cleaning.

[0016] 2. Through the setting of the return spring, since the piston drive shaft and the drive shaft sleeve can only move in the vertical direction, the return spring is compressed when the piston drive shaft is subjected to downward pressure, and the return spring rebounds when the piston drive shaft is not under pressure, thereby effectively avoiding the problem of bending of the piston drive shaft due to excessive pressure. The return spring is used to buffer and protect the piston drive shaft from the vertical downward pressure impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the overall three-dimensional structure of a wet concrete spray nozzle cleaning device of the present invention;

[0018] Figure 2 Shown is a schematic diagram of a cross-sectional three-dimensional structure of a transmission component and a nozzle pipe cleaning component of a wet concrete spraying nozzle cleaning device of the present invention;

[0019] Figure 3 Shown is a schematic diagram of the combined three-dimensional structure of the transmission component and the nozzle pipe cleaning component of a wet concrete spraying nozzle cleaning device of the present invention;

[0020] Figure 4 Shown is a schematic diagram of the three-dimensional structure of a metal brush and a triangular fish tooth rod combination of a wet concrete spraying nozzle cleaning device of the present invention.

[0021] The markings in the accompanying drawings are: 1. Transmission assembly; 2. Cleaning assembly inside the nozzle pipe; 3. Drive motor; 101. Transmission sleeve; 102. Piston transmission shaft; 103. Return spring; 104. Protective sleeve; 201. Metal brush; 202. Triangular fish tooth rod; 203. Locking gear frame. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a wet spray concrete nozzle cleaning device, including a transmission assembly 1, a nozzle pipe cleaning assembly 2, and a drive motor 3; the nozzle pipe cleaning assembly 2 is provided at the upper end of the transmission assembly 1; the drive motor 3 is provided at the lower end of the transmission assembly 1; the transmission assembly 1 includes a transmission shaft sleeve 101, a piston-type transmission shaft 102, a return spring 103, and a protective sleeve 104; the nozzle pipe cleaning assembly 2 includes a metal brush 201, a triangular fish tooth rod 202, and a locking gear frame 203.

[0024] See also Figure 1-4 In this embodiment, a transmission sleeve 101 is provided at the upper end of the driving motor 3, and the transmission sleeve 101 is transmission-connected to the output end of the driving motor 3; a piston-type transmission shaft 102 is provided inside the transmission sleeve 101, and the outer wall groove protrusion strip of the piston-type transmission shaft 102 is slidably connected along the inner wall slide groove of the transmission sleeve 101 in the vertical direction, and the piston-type transmission shaft 102 and the transmission sleeve 101 are coaxially rotated and transmitted, and a return spring 103 is provided on the outer wall of the piston-type transmission shaft 102, and the return spring 103 is provided inside the transmission sleeve 101, and one end of the return spring 103 is fixedly connected to the inner wall of the transmission sleeve 101, and the other end of the return spring 103 is fixedly connected to the outer wall of the piston-type transmission shaft 102; a metal brush 201 is provided above the piston-type transmission shaft 102; a triangular fish tooth rod 202 is fixedly provided at the lower end of the metal brush 201, and the triangular fish tooth rod 202 is inserted into the sliding groove inside the upper end of the piston-type transmission shaft 102.

[0025] See also Figure 1-4 In this embodiment, locking gear racks 203 are evenly distributed around the outside of the triangular fish-tooth rod 202. There are three groups of locking gear racks 203, and the outer shell of the locking gear rack 203 is fixedly connected to the outer wall of the piston-type transmission shaft 102. The triangular fish-tooth rod 202 is tooth-connected with the locking gear rack 203; locking bolts are provided on both sides of the gears of each group of locking gear racks 203. After the locking bolts are threadedly locked, the gears of the locking gear rack 203 are locked and cannot be rotated; a protective sleeve 104 is provided around the outer side of the movable gap between the transmission sleeve 101 and the piston-type transmission shaft 102, and the protective sleeve 104 is fixedly connected to the outer shell of the transmission sleeve 101.

[0026] During operation, the metal brush 201 and the triangular fish tooth rod 202 are inserted into the internal groove of the upper end of the piston-type transmission shaft 102 as a whole. During the insertion process, the triangular fish tooth rod 202 is transmitted with the gear in the locking gear frame 203. After the insertion is completed, the bolts on both sides of the gear of the locking gear frame 203 are locked to prevent the gear from rotating, thereby realizing the locking connection function of the triangular fish tooth rod 202 and the locking gear frame 203. The driving motor 3 drives the transmission shaft sleeve 101 to drive the piston-type transmission shaft 102 and the connected metal brush 201 to rotate, thereby realizing the cleaning function of the metal brush 201 inserted into the wet spraying machine nozzle; solving the problem of the existing wet spraying concrete nozzle cleaning device that the cleaning brush is difficult to replace, resulting in high maintenance cost and difficulty in replacement of the cleaning tool and inconvenience in cleaning;

[0027] Next, since the piston drive shaft 102 and the drive sleeve 101 can only move in the vertical direction, the return spring 103 is compressed when the piston drive shaft 102 is subjected to downward pressure, and the return spring 103 rebounds when the piston drive shaft 102 is not under pressure, thereby effectively avoiding the problem of bending of the piston drive shaft 102 due to excessive pressure. The return spring 103 is used to buffer and protect the piston drive shaft 102 from the vertical downward pressure impact.

[0028] Through the above steps, the metal brush 201 and the triangular fish tooth rod 202 are inserted into the internal groove of the upper port of the piston transmission shaft 102 as a whole. During the insertion process, the triangular fish tooth rod 202 is transmitted with the gear inside the locking gear frame 203. After the insertion is completed, the bolts on both sides of the gear of the locking gear frame 203 are tightened to prevent the gear from rotating, thereby realizing the locking connection function of the triangular fish tooth rod 202 and the locking gear frame 203. The driving motor 3 drives the transmission shaft sleeve 101 to drive the piston transmission shaft 102 and the connected metal brush 201 to rotate, thereby realizing the cleaning function of the metal brush 201 inserted into the wet spraying machine nozzle, avoiding the problem of the existing wet spraying concrete nozzle cleaning device because its cleaning brush is difficult to replace, resulting in high maintenance cost, difficulty in replacement, and inconvenience in cleaning of the cleaning tool.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A wet concrete spraying nozzle cleaning device, comprising a transmission assembly (1), characterized in that: The invention also comprises a nozzle pipe cleaning assembly (2) and a driving motor (3); the upper end of the transmission assembly (1) is provided with the nozzle pipe cleaning assembly (2); the lower end of the transmission assembly (1) is provided with the driving motor (3); the transmission assembly (1) comprises a transmission shaft sleeve (101), a piston-type transmission shaft (102), a return spring (103), and a protective sleeve (104); the nozzle pipe cleaning assembly (2) comprises a metal brush (201), a triangular fish tooth rod (202), and a locking gear rack (203).

2. A wet spray concrete nozzle cleaning device according to claim 1, characterized in that: A transmission sleeve (101) is provided at the upper end of the drive motor (3), and the transmission sleeve (101) is transmission-connected to the output end of the drive motor (3); a piston-type transmission shaft (102) is provided inside the transmission sleeve (101), and a protruding strip of an outer wall groove of the piston-type transmission shaft (102) is vertically slidably connected along an inner wall slide groove of the transmission sleeve (101), and the piston-type transmission shaft (102) and the transmission sleeve (101) are coaxially rotationally transmission-connected.

3. A wet spray concrete nozzle cleaning device according to claim 2, characterized in that: A return spring (103) is provided on the outer wall of the piston-type transmission shaft (102), and the return spring (103) is arranged inside the transmission shaft sleeve (101), and one end of the return spring (103) is fixedly connected to the inner wall of the transmission shaft sleeve (101), and the other end of the return spring (103) is fixedly connected to the outer wall of the piston-type transmission shaft (102).

4. A wet spray concrete nozzle cleaning device according to claim 2, characterized in that: A metal brush (201) is arranged above the piston transmission shaft (102); a triangular fish tooth rod (202) is fixedly arranged at the lower end of the metal brush (201), and the triangular fish tooth rod (202) is inserted into the internal sliding groove of the upper end of the piston transmission shaft (102).

5. A wet spray concrete nozzle cleaning device according to claim 4, characterized in that: The outer periphery of the triangular fish tooth rod (202) is evenly distributed with locking gear racks (203), three groups of locking gear racks (203) are provided, and the outer shell of the locking gear rack (203) is fixedly connected to the outer wall of the piston type transmission shaft (102), and the triangular fish tooth rod (202) is connected to the locking gear rack (203) by teeth.

6. A wet spray concrete nozzle cleaning device according to claim 5, characterized in that: Both sides of the gears of each set of locking gear racks (203) are provided with locking bolts, and after the locking bolts are thread-locked, the gears of the locking gear rack (203) are locked and cannot be rotated.

7. A wet spray concrete nozzle cleaning device according to claim 2, characterized in that: A protective sleeve (104) is provided around the outer side of the movable gap between the transmission sleeve (101) and the piston-type transmission shaft (102), and the protective sleeve (104) is fixedly connected to the outer shell of the transmission sleeve (101).

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