Rotary spray head brush

Abstract

The utility model discloses a rotary spray head brush, which relates to the technical field of cleaning equipment, and comprises a high-pressure airflow lead-in solenoid, a round outer shell cylinder with a large head and a small head, a conical inner shell cylinder and a lower end bearing, and the small head end of the inner shell cylinder is arranged in an inner cavity of the round outer shell cylinder in a penetrating manner and is supported by the lower end bearing; the toothbrush further comprises an inner conical sleeve 7 and more than two groups of brush head components; the inner conical sleeve is installed in an inner cavity of the inner shell cylinder in a penetrating mode, and more than two spiral air grooves are evenly distributed in the outer conical surface of the inner conical sleeve. The brush head assemblies are evenly distributed at the large-head end of the inner shell cylinder. One end of the high-pressure air flow leading-in screw pipe is screwed into the small end of the round shell cylinder, and an inner hole of the high-pressure air flow leading-in screw pipe is communicated with the spiral air groove. The cleaning device has the characteristics of increasing the cleaning area, reducing the investment and use cost, improving the cleaning effect and the like, and is suitable for cleaning and cleaning operations such as dust cleaning, moisture drying, waste cleaning, equipment maintenance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a rotating nozzle brush. Background Art

[0002] At present, the rotary air gun developed from the nozzle air gun has been used in industrial enterprises in the cleaning and cleaning operations of dust cleaning, moisture drying, waste cleaning, equipment maintenance, etc. Since the area that a single nozzle air gun can clean at the same time is extremely limited, when facing a large area of ​​workpieces or a large working surface, multiple nozzle air guns are usually arranged in an array. In this way, although the working efficiency is improved, the energy consumption caused by it is significantly increased, and the investment and production costs are also significantly increased.

[0003] The Chinese patent (patent application number is 201921886723.0) discloses a "flow-guiding rotary high-speed energy-saving air knife", which includes a compressed air inlet joint, a rotating nozzle body, a bearing, a rotating nozzle, a swinging air pipe, a first swinging member and a second swinging member. The rotating nozzle body is a hollow structure with openings at both ends. The compressed air inlet joint is connected to the inlet of the rotating nozzle body. The rotating nozzle is a hollow structure with openings at both ends. The rotating nozzle is rotatably mounted inside the rotating nozzle body through a bearing. A gap is provided between the rotating nozzle and the rotating nozzle body. The air inlet end of the swinging air pipe passes through the interior of the rotating nozzle and is connected to the compressed air inlet joint. The rotating nozzle body is provided with an airflow diversion hole, which is connected to the interior of the rotating nozzle body. The first swinging member and the second swinging member are respectively mounted on the swinging air pipe. The utility model has a simple structure, can increase the purge area, can generate high-speed airflow, has a strong purge airflow, has the characteristics of low energy consumption and high efficiency, and has low operating noise.

[0004] Another Chinese patent (patent application number 201921886952.2) discloses a "drainage swing type energy-saving wind knife", which includes two fan-shaped nozzle shells, a compression air inlet joint, a joint seat, a swing air pipe and a swing member. The two nozzle shells are arranged on the joint seat at intervals, so that a fan-shaped cavity area with two ends open is formed between the two. An air pipe limit block is provided between the two nozzle shells. The entrance of the fan-shaped cavity area is opened on both sides of the nozzle shell to form a drainage port. The outlet of the fan-shaped cavity area passes through the air outlet end of the nozzle shell to form a wind knife outlet. The joint seat is provided with an air inlet channel, the compression air inlet joint is connected to the air inlet channel, the air inlet end of the swing air pipe is connected to the air outlet nozzle of the compression air inlet joint, and the air outlet end of the swing air pipe extends toward the outlet direction of the fan-shaped cavity area. The swing member is mounted on the outer wall of the air outlet end of the swing air pipe. The utility model can increase the purge area, has a high-speed swing drainage effect, a strong purge airflow, low gas consumption, and low operating noise. Summary of the invention

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a nozzle air gun device which can not only increase the cleaning area, reduce the investment and use costs, but also improve the cleaning effect.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is to design a rotating spray head brush: including a high-pressure airflow introduction spiral tube, a large and small head-shaped circular outer shell cylinder, a conical inner shell cylinder and a lower end bearing, the small head end of the inner shell cylinder is inserted into the inner cavity of the circular outer shell cylinder and supported by the lower end bearing; it also includes an inner cone sleeve and more than two groups of brush head components;

[0007] The inner cone sleeve is installed in the inner cavity of the inner shell tube, and has more than two spiral wind grooves evenly distributed on its outer cone surface;

[0008] The brush head components are evenly distributed at the large end of the inner shell;

[0009] One end of the high-pressure airflow introduction spiral tube is screwed into the small end of the circular outer shell cylinder, and the inner hole of the high-pressure airflow introduction spiral tube is connected to the spiral wind groove.

[0010] The brush head assembly includes a brush fixing column, brush wires and a brush fixing ring. The brush fixing column is arranged at the large end of the inner shell tube, the ends of the brush wires surround the brush fixing column, and the brush fixing ring is sleeved on the periphery of the brush wires surrounding the brush fixing column.

[0011] The outer circular shell cylinder comprises, from the large end to the small end, an upper large cylinder, a middle conical cylinder, a middle lower cylinder, a lower small cylinder and a lower small round end at the lower end, and a screw hole matching the high-pressure airflow introduction spiral tube is provided in the middle of the lower small round end.

[0012] The inner shell tube is composed of two parts from the large head end to the small head end, including a large conical tube at the upper, middle and lower parts, and an outer column inner cone tube at the lower part. The inner cavities of the two parts are inverted cone holes, and an upward concave hole is opened on the bottom surface of the outer column inner cone tube.

[0013] It also includes a lower snap ring; a radial lower snap ring groove for installing the lower snap ring is provided in the middle of the outer cylindrical surface of the outer cylindrical inner cone of the inner shell tube, and the lower snap ring groove corresponds to the intersection of the middle lower cylinder in the lower part of the outer shell tube and the lower small cylinder in the lower part.

[0014] It also includes an upper end bearing and an upper retaining ring; an outer column base with an upper end bearing mounted thereon is provided in the middle of the outer cylindrical surface of the large conical cylinder of the inner shell cylinder, and a radial upper retaining ring groove for installing the upper retaining ring is provided on the inner wall of the upper large cylinder of the outer shell cylinder corresponding to the outer column base.

[0015] The utility model also comprises a locking nut which is screwed on the high-pressure air flow introduction spiral tube and is closely attached to the end surface of the lower small head circular end of the lower end portion of the circular outer shell cylinder.

[0016] The number of the brush head assemblies is two, three, four or more groups, and the optimal number is three or four groups.

[0017] The number of the spiral air grooves is two, three, four or more, and the optimal number is three or four.

[0018] The brush filaments are steel brush filaments.

[0019] The rotary nozzle brush of the utility model is provided with an inner cone sleeve between the outer shell cylinder and the inner shell cylinder, and a plurality of spiral wind grooves are provided on the outer cone surface of the inner cone sleeve, so that the high-pressure airflow introduced by the high-pressure airflow introduction spiral tube is diverted and ejected along the plurality of spiral wind grooves, thereby pushing the inner shell cylinder to rotate to form a plurality of rotating wind knives, which can not only increase the cleaning area, reduce the amount of equipment investment, reduce the investment and use costs, but also improve the cleaning effect; at the same time, a plurality of brush head assemblies are added to the large head end of the inner shell cylinder, so that it can brush incidentally during the rotation process, thereby further improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main cross-sectional schematic diagram of the utility model;

[0021] Figure 2 It is a top view schematic diagram of the utility model;

[0022] Figure 3 It is a partial enlarged schematic diagram of S of the utility model;

[0023] Figure 4 It is a partial enlarged schematic diagram of H of the utility model.

[0024] In the figure:

[0025] 1 is the high-pressure air flow introduction spiral tube, 2 is the locking nut, 3 is the outer shell cylinder, 4 is the inner shell cylinder, 5 is the lower retaining ring, 6 is the lower end bearing, 7 is the inner conical sleeve, 8 is the spiral wind groove, 9 is the upper end bearing, 10 is the upper retaining ring, 11 is the brush wire fixing ring, 12 is the brush wire fixing column, and 13 is the brush wire. DETAILED DESCRIPTION

[0026] The following is a further description of the present invention in conjunction with the accompanying drawings and embodiments. The following description is in the form of examples, but the protection scope of the present invention should not be limited thereto.

[0027] Description of the up and down directions in this specification and its drawings (since the product is a rotating body, the front, back, left, and right directions are not required):

[0028] Attached Figure 1 and attached Figure 3 The up and down directions in are the actual up and down directions respectively;

[0029] Attached Figure 2 and attached Figure 4 The front and inside in the figure are actually the top and bottom respectively.

[0030] Embodiment 1:

[0031] The rotary nozzle brush of this embodiment is composed of a high-pressure air flow introduction spiral tube 1, a locking nut 2, an outer shell cylinder 3, an inner shell cylinder 4, an inner conical sleeve 7, a lower end bearing 6, a lower retaining ring 5, an upper end bearing 9 and an upper retaining ring 10 and more than two groups of brush head components.

[0032] The high-pressure air flow introduction spiral tube 1 is a vent pipe with a through hole in the middle (ie, an inner hole) and a threaded outer cylindrical surface.

[0033] The outer shell cylinder 3 is in the shape of a large and small head, and its length from the large end to the small end (i.e., from top to bottom, see the attached Figure 1 (as shown in the figure) comprises, in sequence, an upper large cylinder at the top, a middle conical cylinder in the middle, a middle-lower cylinder in the middle-lower part, a lower small cylinder at the lower part and a lower small round end at the lower end, a screw hole matching the high-pressure airflow introduction spiral tube 1 is provided in the middle of the lower small round end; a radial upper retaining ring groove for installing an upper retaining ring 10 is also provided on the inner wall of the middle-lower part of the upper large cylinder; a step is formed at the junction of the middle-lower cylinder and the lower small cylinder for installing the lower end bearing 6.

[0034] The inner shell tube 4 is conical, and the inner shell tube 4 is from the large end to the small end (ie, from top to bottom, see the attached Figure 1 The outer cylinder is a cylindrical cylinder having a cylindrical surface and an inner cavity having a conical hole. The inner cavity of the two parts is a continuous inverted cone hole (the bottom of the hole is a cone tip and is not penetrated). An upward concave hole is opened on the bottom surface of the outer cylinder inner cone, and the middle of the concave hole is connected to the inverted cone hole. A radial lower snap ring 5 for installing the lower snap ring is also opened in the middle of the outer cylinder surface of the outer cylinder inner cone. The groove of the lower snap ring corresponds to the step at the intersection of the middle and lower cylinder in the lower part of the outer shell cylinder 3 and the lower small cylinder in the lower part; the lower snap ring 5 plays a role in positioning the inner shell cylinder 4 in the upward direction; in the middle of the outer cylindrical surface of the large conical cylinder of the inner shell cylinder 4, an outer column base for fitting the upper end bearing 9 is also provided, and the outer column base corresponds to the upper snap ring 10 on the inner wall of the upper large cylinder of the outer shell cylinder 3, and the upper snap ring 10 plays a role in positioning the outer shell cylinder 3 in the downward direction.

[0035] The inner conical sleeve 7 is a conical sleeve whose cone tip is not penetrated, and has two or more (it can be two or three or four or more, preferably three or four) spiral wind grooves 8 (whose helix angle is usually set at 2-10°, and its optimized helix angle is 5°) evenly distributed on its outer conical surface. The sum of the cross-sectional areas of all the spiral wind grooves 8 should be smaller than the area of ​​the through hole for introducing the high-pressure airflow into the spiral tube 1, so as to avoid excessively reducing the wind pressure at the outlet of the spiral wind grooves 8; the inner conical sleeve 7 is installed in the inner cavity of the inner shell tube 4 and is connected to the inner shell tube 4 as a whole (fixed by screws).

[0036] The brush head assembly is composed of a brush wire fixing column 12, brush wires 13 and a brush wire fixing ring 11. The brush wire fixing column 12 is arranged at the large end of the inner shell 4 (i.e., the upper end edge, see the attached Figure 1 and attached Figure 3 As shown in the figure, the ends of the brush filaments 13 (steel brush filaments) surround the brush filament fixing column 12, and the brush filament fixing ring 11 (the brush filament fixing ring 11 is a tightening device to prevent the brush filaments 13 from loosening) is sleeved on the periphery of the brush filaments 13 surrounding the brush filament fixing column 12.

[0037] The small head end of the inner shell tube 4 is installed in the inner cavity of the outer cylindrical tube 3 from top to bottom, and is supported by a double bearing formed by an upper end bearing 9 and a lower end bearing 6 (which can ensure that the rotation of the inner shell tube 4 is relatively stable); the cone tip of the inner cone sleeve 7 is installed in the inner cavity of the inner shell tube 4 from top to bottom, and its cone tip penetrates into the concave hole on the bottom surface of the inner cone tube of the outer column.

[0038] The upper end of the high-pressure airflow introduction spiral tube 1 is screwed into the small head end of the circular outer shell cylinder 3, and enters into the concave hole on the bottom surface of the inner cone cylinder of the outer column, and slightly covers the cone tip of the inner cone sleeve 7, so that the high-pressure airflow introduced by the through hole of the high-pressure airflow introduction spiral tube 1 can be smoothly diverted to each spiral wind groove 8, thereby reducing pressure loss; the locking nut 2 is screwed on the high-pressure airflow introduction spiral tube 1, and is close to the end face of the lower small head circular end of the lower end of the circular outer shell cylinder 3, forming a lock to prevent it from loosening and exiting.

[0039] Before use, first install the rotary nozzle brush on the equipment that needs to be cleaned, let the brush wire 13 slightly touch the surface of the workpiece, and introduce high-pressure airflow into the other end of the spiral tube 1 to connect the high-pressure air source.

[0040] When in use, a high-pressure air source (it is necessary to ensure that the pressure at the outlet end of the spiral wind groove 8 reaches: 0.4~0.5MPa, and the flow rate reaches: 100~110NL / min.) is introduced into the spiral tube 1 by the high-pressure air flow, and is divided into each spiral wind groove 8 in the concave hole on the bottom surface of the inner cone of the outer column, and is ejected through the outlet end of the spiral wind groove 8. Since the sum of the cross-sectional areas of all the spiral wind grooves 8 is smaller than the area of ​​the through hole of the high-pressure air flow introduction spiral tube 1, the air flow ejected from the outlet end of the spiral wind groove 8 has a relatively large pressure and speed, so it can effectively clean the workpiece; at the same time, since the outlet of the spiral wind groove 8 has a spiral angle, therefore, when the high-pressure air flow is ejected from the outlet of the spiral wind groove 8, a thrust will be generated, pushing the inner shell tube 4 and the inner cone sleeve 7 to reverse together, and rotating with the brush head assembly, and the end of the rotating brush filament 13 will also clean the surface of the workpiece, thereby further improving the cleaning effect.

[0041] Since the through hole of the spiral tube 1 for introducing high-pressure airflow and the cone tip of the inner cone sleeve 7 are not completely closed, therefore, when it is diverted, a small amount of high-pressure airflow flows into the gap between the inner shell tube 4 and the outer shell tube 3 through the concave hole on the bottom surface of the inner cone tube of the outer column, and further flows through the lower end bearing 6 and the upper end bearing 9, and finally diffuses from the space between the large head end of the outer shell tube 3 and the large head end of the inner shell tube 4; at the same time, a positive pressure state is also formed, thereby preventing dust and water vapor from entering the upper end bearing 9 and the lower end bearing 6 through the space between the large head end of the outer shell tube 3 and the large head end of the inner shell tube 4, thereby damaging the upper end bearing 9 and the lower end bearing 6.

[0042] The utility model discloses a rotary nozzle brush, which is suitable for cleaning operations such as dust sweeping, water drying, waste cleaning, equipment maintenance, etc.

Claims

1. A rotary spray brush, comprising a high-pressure air flow introduction spiral tube (1), a cylindrical outer shell cylinder (3) with large and small heads, a conical inner shell cylinder (4) and a lower end bearing (6), wherein the small end of the inner shell cylinder (4) is inserted into the inner cavity of the cylindrical outer shell cylinder (3) and supported by the lower end bearing (6); characterized in that: It also includes an inner conical sleeve (7) and more than two sets of brush head components; The inner conical sleeve (7) is installed in the inner cavity of the inner shell (4), and has two or more spiral wind grooves (8) evenly distributed on its outer conical surface; The brush head components are evenly distributed at the large end of the inner shell tube (4); One end of the high-pressure airflow introduction spiral tube (1) is screwed into the small end of the circular outer shell cylinder (3), and the inner hole of the high-pressure airflow introduction spiral tube (1) is connected to the spiral wind groove (8).

2. The rotary nozzle brush according to claim 1, characterized in that: The brush head assembly comprises a brush filament fixing column (12), brush filaments (13) and a brush filament fixing ring (11); the brush filament fixing column (12) is arranged at the large end of the inner shell tube (4); the ends of the brush filaments (13) surround the brush filament fixing column (12); and the brush filament fixing ring (11) is sleeved on the periphery of the brush filaments (13) surrounding the brush filament fixing column (12).

3. The rotary nozzle brush according to claim 1 or 2, characterized in that: The outer cylindrical shell (3) comprises, from the large end to the small end, an upper large cylinder, a middle conical cylinder, a middle lower cylinder, a lower small cylinder and a lower small round end at the lower end, and a screw hole matching the high-pressure airflow introduction spiral tube (1) is provided in the middle of the lower small round end.

4. The rotary nozzle brush according to claim 3, characterized in that: The inner shell tube (4) is composed of two parts, including an upper part, a middle part and a middle-lower part, and an outer column inner cone tube at the lower part, from the large end to the small end. The inner cavities of the two parts are inverted cone holes, and an upward concave hole is opened on the bottom surface of the outer column inner cone tube.

5. The rotary nozzle brush according to claim 4, characterized in that: It also includes a lower snap ring (5); a radial lower snap ring groove for mounting the lower snap ring (5) is provided in the middle of the outer cylindrical surface of the outer cylindrical inner cone of the inner shell cylinder (4), and the lower snap ring groove corresponds to the junction of the middle lower cylinder and the lower small cylinder in the middle and lower part of the outer shell cylinder (3).

6. The rotary nozzle brush according to claim 5, characterized in that: It also includes an upper end bearing (9) and an upper retaining ring (10); an outer column base on which the upper end bearing (9) is mounted is provided in the middle of the outer cylindrical surface of the large conical cylinder of the inner shell cylinder (4); and a radial upper retaining ring groove for mounting the upper retaining ring (10) is provided on the inner wall of the upper large cylinder of the outer shell cylinder (3) corresponding to the outer column base.

7. The rotary nozzle brush according to claim 6, characterized in that: It also includes a locking nut (2) which is screwed onto the high-pressure airflow introduction spiral tube (1) and is in close contact with the end surface of the lower small head circular end of the lower end of the circular outer shell cylinder (3).

8. The rotary nozzle brush according to claim 7, characterized in that: The number of the brush head assemblies is two, three, four or more groups.

9. The rotary nozzle brush according to claim 8, characterized in that: The number of the spiral air grooves (8) is two, three, four or more.

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