Wall surface cleaning device

Abstract

The utility model discloses a wall cleaning device, which relates to the technical field of wall cleaning and comprises a rotating shaft, a disc and a water spraying rod with an inclined nozzle, the rotating shaft is vertically mounted on the top wall of the disc in a penetrating manner, a water inlet hole is formed in the upper end of the rotating shaft, and the water spraying rod is eccentrically arranged in the disc. The lower end of the rotating shaft penetrates through the water spraying rod and is rotationally connected to the inner side of the middle position of the water spraying rod in a sleeving mode, a water outlet hole communicated with the water inlet hole in a sealed mode is formed in the part, in the water spraying rod, of the rotating shaft, dust collection holes are formed in the side wall of the disc, and the lower end of the side wall is connected with a sealed baffle ring in a self-telescopic mode. According to the water spraying device, the stability of connection, installation and even operation of the water spraying rod and the rotating shaft is greatly improved, the overall operation safety is improved, meanwhile, the cleaning effect and the cleaning efficiency are greatly improved, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wall cleaning, in particular to a wall cleaning device. Background Art

[0002] In the process of construction, repair, or beautification of the walls of buildings, it is often necessary to clean the walls. The traditional method is to manually grind the walls with sandpaper or an electric grinder, and then manually clean the polished areas with a water pipe. This method has a small cleaning area and high labor intensity, and is ultimately extremely time-consuming and labor-intensive, with average results. In addition, the sewage, debris, etc. generated by cleaning will splash, which not only harms the work site, but also endangers the health of the operators.

[0003] The research on the cleaning device that can be used for wall cleaning in the prior art, such as the rotator for high-pressure cleaning machine in patent application CN2875625Y, the cleaning disc of flat scrubber in CN211324784U, etc., can realize rotating high-pressure water multi-jet cleaning through the cooperation of a disc, a rotatable shaft, and a water spray rod equipped with an inclined nozzle and a conventional high-pressure water pipe, that is, directly use the high-pressure inclined water flow to remove the damaged wall skin and debris on the wall, and complete the cleaning work of a large area, which improves the cleaning effect and cleaning efficiency to a certain extent; at the same time, the prior art, such as the cleaning disc of flat scrubber in patent application CN211324784U, etc., all use the cooperation of shielding components such as flexible shielding curtains to avoid sewage, debris, etc. splashing out of the disc to a certain extent.

[0004] However, most of the shielding components in the prior art cannot ensure self-telescopic adjustment, so that when encountering uneven walls, it is impossible to ensure quick and smooth passage. When there are stubborn stains on the wall, it is impossible to increase the cleaning force by getting closer. This makes the improvement of cleaning effect and cleaning efficiency still limited, and the overall convenience of use is also average. At the same time, most of the prior art cannot simultaneously achieve rapid removal of sewage, debris, etc. generated by cleaning during the cleaning process, which further affects the cleaning effect and cleaning efficiency. In addition, the water spray rod in the prior art is multi-threadedly connected to the end of the rotating shaft, and the stability of the connection installation is limited, which leads to limited overall operation safety.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide a wall cleaning device, which solves the technical problems that most of the prior arts proposed in the above background art cannot simultaneously achieve rapid suction of sewage and debris generated by cleaning, and the shielding components in the prior art cannot ensure self-telescopic adjustment, which ultimately makes the improvement of cleaning effect and cleaning efficiency still limited, the overall convenience of use is also average, and the stability of the connection and installation between the water spray rod and the rotating shaft in the prior art is limited, resulting in limited overall operational safety.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wall cleaning device comprises a disc, a rotating shaft is vertically installed on the top wall of the disc, a water inlet hole is formed on the upper end of the rotating shaft, and a limiting nut for fastening itself to the top wall of the disc is also threadedly connected on the outer side, a water spray rod is eccentrically arranged in the disc, an inclined nozzle is installed on the water spray rod, and the water outlet direction of the nozzle is inclined relative to the vertical direction of the wall, the lower end of the rotating shaft passes through the water spray rod and is rotatably connected to the inner side of the middle position of the water spray rod, the part of the rotating shaft inside the water spray rod is provided with a water outlet hole tightly connected to the water inlet hole, the side wall of the disc is provided with a dust suction hole, and the lower end of the side wall is self-telescopically connected with a closed baffle ring.

[0008] Furthermore, the upper end of the rotating shaft passes through the top wall of the disc and the part thereof located outside the disc is formed with a water inlet pipe connecting thread matched with the water inlet hole, the part of the rotating shaft located inside the disc is provided with a four-way joint matched with the water inlet hole inside the disc, the four-way joint comprises a first connecting pipe arranged vertically and a second connecting pipe arranged horizontally, the first connecting pipe and the second connecting pipe are arranged in a cross shape and are connected in an integral manner, the water spraying rod comprises two rod parts respectively threadedly connected to the two ends of the second connecting pipe, a plurality of nozzles are installed on the rod parts, the rotating shaft A bearing and a bearing seat are sequentially sleeved from the inside to the outside and coaxially penetrate the first connecting tube. The bearing and the bearing seat are coaxially embedded in the inner side of the first connecting tube and are symmetrically provided with two of them. The upper and lower ends of the inner wall of the first connecting tube are both extended inwardly to form flanges. The flanges at both ends are respectively formed with the inner wall of the first connecting tube to form two mounting grooves for accommodating the bearings and the bearing seats at both ends. The flanges are also provided with sealing rings between the flanges and the rotating shaft and are sealed by the sealing rings. The water outlet is opened in the part of the rotating shaft in the first connecting tube and is located between the two sealing rings. Between the sealing rings, the part of the rotating shaft located below the water outlet is a solid structure, and the lower end of the rotating shaft extends out of the first connecting pipe and then extends outwardly to form a limiting boss, and the upper surface of the limiting boss abuts against the lower surface of the bearing and the bearing seat at the lower end at the same time, and the top inner wall of the disc extends downward to form a lateral limiting plate, and the lateral limiting plates are evenly distributed along the circumference and are parallel to the inner wall of the disc at adjacent positions, and a plurality of top limiting plates are distributed between two adjacent lateral limiting plates, and the top limiting plates are vertical Fixed between the top inner wall and the inner side wall of the disc, the bottom surface of the top limit plate is higher than the bottom surface of the lateral limit plate, the top limit plate and the lateral limit plate and the inner side wall of the disc together enclose an annular installation cavity adapted to the closed baffle ring, the closed baffle ring is inserted into the interior of the installation cavity, the lowest point of the inner side wall of the disc is higher than the bottom surface of the closed baffle ring, the closed baffle ring is also provided with a return spring matching with itself in the installation cavity, the upper and lower ends of the return spring are respectively in contact with the bottom surface of the top limit plate and the upper surface of the closed baffle ring.

[0009] Furthermore, the nozzles are arranged one by one at the ends of the rods away from one end of the second connecting pipe, or at least two nozzles are arranged on each of the two rods.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model is based on a water spray rod provided with a rotating shaft, a disc and a water spray rod with an inclined nozzle. The rotating shaft is vertically penetrated and installed on the top wall of the disc and a water inlet hole is formed at the upper end. The lower end of the rotating shaft penetrates the water spray rod and is rotatably connected to the inner side of the middle position of the water spray rod in a sleeve-type manner. The part of the rotating shaft inside the water spray rod is provided with a water outlet hole which is tightly connected to the water inlet hole. While realizing the rotating high-pressure water multi-jet cleaning, the lower end of the rotating shaft penetrates the water spray rod and is rotatably connected to the inner side of the middle position of the water spray rod in a sleeve-type manner, which greatly improves the stability of the water spray rod and the rotating shaft during installation and even operation. That is, when high-pressure water is sprayed from the nozzle of the water spray rod through the water inlet hole through the water outlet hole, the sprayed high-pressure water forms an angle with the wall surface, and the water flow generates thrust on the water spray rod, driving the water spray rod to rotate relative to the rotating shaft and the disc in the disc, which greatly improves the overall operation safety. On this basis, The lower end of the side wall of the disc is self-telescopically connected with a closed baffle ring, which prevents the sewage and debris in the disc from splashing to the outside, and not only ensures that the disc can pass quickly and smoothly when encountering uneven walls, but also makes the distance between the water spray rod and the wall adjustable, which is convenient for increasing the cleaning intensity when there are stubborn stains on the wall, and ultimately greatly improves the cleaning effect and cleaning efficiency while greatly improving the convenience of use; in addition, the dust suction hole on the side wall of the disc in the utility model is convenient for the installation of external dust suction equipment, and realizes the direct and synchronous suction of sewage, debris, etc. generated by cleaning, and the water spray rod is eccentrically arranged in the disc, which promotes the gathering of sewage and debris generated by cleaning to the dust suction hole in the disc, effectively improving the suction speed of sewage, debris, etc. in the disc, and ultimately further improving the cleaning efficiency and cleaning effect of the wall.

[0012] 2. In the utility model, while the water inlet hole and the water outlet hole of the rotating shaft are in the same vertical direction, a water inlet pipe connecting thread is formed on the upper end of the rotating shaft outside the disc, so that the water inlet pipe is directly connected to the rotating shaft, which effectively shortens the water path of the high-pressure water, ensures the cleaning strength of the high-pressure water on the wall, and ultimately further improves the cleaning efficiency and cleaning effect of the wall.

[0013] 3. The top inner wall of the disc in the utility model extends downward to form a lateral limit plate, and a top limit plate is distributed between two adjacent lateral limit plates. The top limit plate and the lateral limit plate and the inner wall of the disc are together enclosed to form an installation cavity. In the utility model, the rapid disassembly and assembly of the closed retaining ring is achieved only through the combined use of the top limit plate and the lateral limit plate, which further improves the convenience of use.

[0014] 4. The rotating shaft in the utility model is provided with bearings and bearing seats in sequence from the inside to the outside and is provided with a four-way joint matched therewith, the four-way joint comprises a first connecting pipe arranged vertically and a second connecting pipe arranged horizontally, and two rod parts of the water spray rod are respectively connected to the two ends of the second connecting pipe. In the utility model, the relative rotation between the rotating shaft and the four-way joint and the water spray rod is effectively guaranteed through the combined use of the bearings, the bearing seats and the first connecting pipe, that is, no matter how the rotating shaft rotates, the bearings will rotate therewith, while the bearing seats and the four-way joint will remain stationary, and vice versa, which further ensures the realization of the rotation operation of the water spray rod and further ensures the cleaning effect and cleaning efficiency; in addition, the nozzles on the rod part in the utility model can be provided with at least two, which also improves the cleaning effect and cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is an internal schematic diagram of Embodiment 1 of the present invention;

[0016] Figure 2 is a schematic diagram of the structure of the disc of the utility model;

[0017] FIG3 is a schematic diagram of the working principle of the reset spring of the utility model;

[0018] FIG4 is a schematic diagram of the structure of the utility model connecting the rotating shaft and the four-way joint;

[0019] 5 is a schematic diagram of the structure of the connection and installation of the water spray rod and the four-way joint in Example 1 of the utility model;

[0020] FIG6 is a side view schematic diagram of Embodiment 1 of the present utility model;

[0021] 7 is a schematic diagram of the structure of the water spray rod and the four-way joint connected and installed in Example 2 of the utility model;

[0022] In the figure: 1, disc, 11, dust suction hole, 12, lateral limit plate, 13, top limit plate, 14, installation cavity, 2, water spray rod, 21, rod part, 22, nozzle, 3, rotating shaft, 31, water inlet hole, 32, water outlet hole, 33, limit boss, 4, closed retaining ring, 5, reset spring, 6, four-way joint, 61, first connecting pipe, 611, flange, 612, installation groove, 62, second connecting pipe, 7, bearing, 8, bearing seat, 9, sealing ring, 10, limit nut. DETAILED DESCRIPTION

[0023] The utility model is described in detail below with reference to the accompanying drawings and embodiments. Embodiment 1:

[0024] Please refer to Figures 1 to 6, which show a wall cleaning device, including a disc 1 and a water spray rod 2 eccentrically arranged in the disc 1. The top inner wall of the disc 1 extends downward to form a plurality of lateral limit plates 12, and the lateral limit plates 12 are evenly distributed along the circumference and are parallel to the inner wall of the disc 1 at adjacent positions. A plurality of top limit plates 13 are distributed between two adjacent lateral limit plates 12. The top limit plates 13 are all extended downward from the top inner wall of the disc 1 along the inner wall of the disc 1 and protrude radially inward. The lateral limit plates 12 are all protruded downward relative to the top limit plates 13. The top limit plate 13 and the side limit plate 12 together with the inner wall of the disc 1 enclose an annular installation cavity 14, and a closed retaining ring 4 is tightly inserted into the interior of the installation cavity 14 (the material of the closed retaining ring is set as needed, and can be rubber, PTFE, etc.), and a return spring 5 is provided between the closed retaining ring 4 and the installation cavity 14 (the number of return springs 5 ​​and the distribution of the return springs 5 ​​in the installation cavity 14 can be set as needed), and the upper and lower ends of the return spring 5 are respectively in contact with the bottom surface of the top limit plate 13 and the upper surface of the closed retaining ring 4, and the lowest point of the inner wall of the disc 1 is higher than the bottom surface of the closed retaining ring 4.

[0025] Furthermore, a dust suction hole 11 is provided on the side wall of the disc 1, a rotating shaft 3 perpendicular to it is installed on the top wall of the disc 1, the upper end of the rotating shaft 3 passes through the top wall of the disc 1 and a water inlet hole 31 is formed along its own axial direction, and a water inlet pipe connecting thread is formed on the outer side of the part of the upper end of the rotating shaft 3 located outside the disc 1 and is threadedly connected with a limiting nut 10 for tightening the rotating shaft 3 to the top wall of the disc 1, the water inlet hole 31 and the water inlet pipe connecting thread are arranged in cooperation with each other inside and outside, and the part of the rotating shaft 3 located inside the disc 1 coaxially passes through A four-way joint 6, the four-way joint 6 consists of a first connecting pipe 61 for the rotating shaft 3 to pass through, and a second connecting pipe 62 integrally connected to the first connecting pipe 61, the first connecting pipe 61 is arranged vertically, the second connecting pipe 62 is arranged horizontally, the first connecting pipe 61 and the second connecting pipe 62 are arranged in a cross shape, the water spray rod 2 includes two rod parts 21, the rod parts 21 are threadedly connected to the two ends of the second connecting pipe 62 in a one-to-one manner, and the end of each rod part 21 away from the end of the second connecting pipe 62 is installed with a nozzle 22, and the water outlet direction of the nozzle 22 is inclined relative to the vertical direction of the wall. The upper and lower ends of the inner wall of the first connecting pipe 61 are both extended inwardly to form flanges 611, and the flanges 611 at both ends are symmetrically arranged up and down and form two mounting grooves 612 respectively with the inner wall of the first connecting pipe 61, and the rotating shaft 3 is also symmetrically sleeved with two bearings 7 up and down, and the two bearings 7 are respectively sleeved on the inner sides of two bearing seats 8, and the bearing seats 8 are embedded in the mounting grooves 612 in a one-to-one manner. The flanges 611 A sealing ring 9 is also provided between the rotating shaft 3 and the rotating shaft 3 is sealed by the sealing ring 9. The rotating shaft 3 is provided with a water outlet 32 ​​connected to the water inlet 31 in the part inside the first connecting tube 61. The water outlet 32 ​​is located between the two sealing rings 9. The part of the rotating shaft 3 below the water outlet 32 ​​is a solid structure. After the lower end of the rotating shaft 3 extends out of the first connecting tube 61, it also extends outwardly to form a limiting boss 33. The upper surface of the limiting boss 33 is simultaneously in contact with the lower surface of the bearing 7 and the bearing seat 8 below.

[0026] The working principle and working process of the utility model are as follows: when cleaning the wall, the disc 1 is connected to the external dust suction device (not shown) through the dust suction hole 11, and the external high-pressure water pipe (the structure and function of the conventional high-pressure water generating device such as the high-pressure water pipe are well known in the art, so no further explanation is given here, and it is not shown in the drawings) is connected to the rotating shaft 3 through the water inlet pipe connection thread, so that the high-pressure water pipe is connected to the water inlet hole 31 of the rotating shaft 3, and the high-pressure water of the high-pressure water pipe flows into the water spray rod 2 through the water inlet hole 31 and the water outlet hole 32 of the rotating shaft 3 in turn, and is sprayed out from the nozzles 22 on the two rod parts 21 of the water spray rod 2 respectively. At this time, the water outlet direction of the nozzle 22 is relative to the vertical direction of the wall. The high-pressure water flow generates a thrust on the water spray rod 2, driving the water spray rod 2 to rotate relative to the rotating shaft 3 and the disc 1 (the normal rotational matching relationship between the shaft, the bearing and the bearing seat is well known in the art, so it is not explained here. At the same time, in this embodiment, no matter how the rotating shaft 3 rotates, the bearing 7 will rotate accordingly, while the bearing seat 8 and the four-way joint 6 remain stationary, and vice versa), so as to complete the cleaning of the wall; during the whole process, the closed retaining ring 4 can ensure the sealing between the disc 1 and the wall, prevent the sewage, debris, etc. generated by cleaning from splashing outside the disc 1, and the external dust collection equipment synchronously sucks away the sewage, debris, etc. generated by cleaning from the disc 1, thereby ensuring the cleaning effect of cleaning. Embodiment 2:

[0027] This embodiment provides a wall cleaning device, which is different from the first embodiment only in that two nozzles 22 are provided on each rod 21 (as shown in FIG. 7 ). Other structures and the connection relationship between the structures are the same as the first embodiment.

Claims

1. A wall cleaning device, comprising a rotating shaft, a disc, and a water spraying rod with an inclined nozzle, characterized in that: The rotating shaft is installed vertically on the top wall of the disc and a water inlet hole is formed at the upper end. The water spray rod is eccentrically arranged in the disc. The lower end of the rotating shaft passes through the water spray rod and is rotatably connected to the inner side of the middle position of the water spray rod. The part of the rotating shaft inside the water spray rod is provided with a water outlet hole tightly connected to the water inlet hole. The side wall of the disc is provided with a dust suction hole and the lower end of the side wall is self-telescopically connected to a closed baffle ring.

2. A wall cleaning device according to claim 1, characterized in that: The top inner wall of the disc extends downward to form a lateral limit plate, and multiple lateral limit plates are evenly distributed along the circumference and are parallel to the inner wall of the disc at adjacent positions. Several top limit plates are distributed between two adjacent lateral limit plates, and the top limit plates are vertically fixed between the top inner wall and the inner wall of the disc.

3. A wall cleaning device according to claim 2, characterized in that: The bottom surface of the top limit plate is higher than the bottom surface of the side limit plate. The top limit plate and the side limit plate and the inner wall of the disc together form an annular installation cavity adapted to the closed retaining ring. The closed retaining ring is inserted into the interior of the installation cavity, and the lowest point of the inner wall of the disc is higher than the bottom surface of the closed retaining ring.

4. A wall cleaning device according to claim 3, characterized in that: The sealed retaining ring is also provided with a return spring matched with the sealed retaining ring in the installation cavity, and the upper and lower ends of the return spring are respectively in contact with the bottom surface of the top limit plate and the upper surface of the sealed retaining ring.

5. A wall cleaning device according to claim 1, characterized in that: The upper end of the rotating shaft passes through the top wall of the disc and the part thereof located outside the disc is formed with a water inlet pipe connecting thread that cooperates with the water inlet hole. The part of the rotating shaft located inside the disc is provided with a four-way joint that cooperates with it inside the disc. The four-way joint includes a first connecting pipe arranged vertically and a second connecting pipe arranged horizontally. The first connecting pipe and the second connecting pipe are arranged in a cross shape and are connected in an integral manner. The rotating shaft is sequentially sleeved with bearings and bearing seats from the inside to the outside and coaxially passes through the first connecting pipe. The bearings and bearing seats are coaxially embedded in the inner side of the first connecting pipe and two are symmetrically provided up and down.

6. A wall cleaning device according to claim 5, characterized in that: The inner wall of the first connecting tube has flanges extending inwardly at both upper and lower ends, and the flanges at both ends respectively form two mounting grooves for accommodating bearings and bearing seats at both ends with the inner wall of the first connecting tube. The flanges are also provided with sealing rings between the flanges and the rotating shaft and are sealed by the sealing rings. The water outlet is opened in the part of the rotating shaft in the first connecting tube and is located between the two sealing rings, and the part of the rotating shaft below the water outlet is a solid structure.

7. A wall cleaning device according to claim 2, characterized in that: The outer side of the upper end of the rotating shaft is also threadedly connected with a limiting nut for fastening it to the top wall of the disc. The lower end of the rotating shaft extends outward from the first connecting tube to form a limiting boss. The upper surface of the limiting boss simultaneously abuts against the lower surface of the bearing and the bearing seat at the lower end.

8. A wall cleaning device according to claim 2, characterized in that: The water spray rod comprises two rod parts which are respectively threadedly connected to the two ends of the second connecting pipe, and a plurality of nozzles are installed on each of the rod parts. The water outlet directions of the nozzles are all inclined relative to the vertical direction of the wall.

9. A wall cleaning device according to claim 8, characterized in that: The nozzles are arranged one by one at the end of the rod away from one end of the second connecting pipe.

10. A wall cleaning device according to claim 8, characterized in that: There are at least two nozzles on the rod.

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