A spraying device for street lamp housing

Abstract

The utility model relates to the technical field of spraying devices, and specifically to a spraying device for a street lamp housing, comprising a housing, a spraying mechanism arranged on the housing, the spraying mechanism comprising a spraying plate mounted on the inner wall of the housing, a spray head mounted on the spraying plate, a storage box mounted on the outer wall of the housing, a flow guide pipe arranged between the storage box and the spraying plate, a delivery pump arranged on the flow guide pipe; a rotating shaft arranged in the housing, a motor arranged on the outer wall of the housing, the motor output shaft extending to the inside of the housing and connected to the rotating shaft in a transmission manner, a fixing mechanism arranged on the rotating shaft; a cleaning mechanism arranged in the housing, the cleaning mechanism comprising a cleaning brush and a rotating ring, the rotating ring being rotatably connected to the inner wall of the housing, a first connecting rod arranged between the rotating ring and the cleaning brush, and a second connecting rod arranged between the rotating shaft and the first connecting rod. The purpose of the utility model is to solve the technical problem that the spray head is easily blocked by paint residues, and the staff need to clean it frequently in the future, which results in a large workload for the staff.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to a spraying device for a lamp housing of a street lamp. Background Art

[0002] Street lights refer to lamps that provide lighting for roads. They generally refer to lamps within the scope of road lighting in traffic lighting. Street lights are widely used in various places where lighting is needed. The outer surface of street lights is often eroded by rain and is prone to rust. In order to increase the rust resistance of the outer surface of the street light shell, the shell is usually sprayed with anti-rust paint after the street light shell is manufactured. However, traditional spraying devices can only spray on a single surface of the street light during the spraying process, and the spraying efficiency is low.

[0003] In order to solve the above problems, a Chinese utility model (publication number: CN217043105U) discloses a spraying device for manufacturing street lamp housings, which relates to the technical field of street lamp housing manufacturing, and includes a bottom plate, the upper surface of which is fixedly connected to a vertical plate, the upper surface of which is fixedly connected to a top plate, a paint spraying mechanism for spraying paint is arranged on the top plate, and a linkage rod is rotatably connected to the inside of the vertical plate, and a clamping mechanism for clamping is arranged at one end of the linkage rod. The utility model has a reasonable design structure, which is arranged through the coordination between the rotating mechanism, the clamping mechanism and the linkage rod, and the paint spraying mechanism includes a storage tank and a paint spraying plate, and the bottom surface of the paint spraying plate is installed with spray heads arranged at equal distances.

[0004] The above patent can support and fix the street lamp shell inside the street lamp shell through the clamping mechanism, and under the action of the rotating mechanism, the linkage rod can drive the street lamp shell fixed on the clamping mechanism to rotate, so that under the action of the painting mechanism, the purpose of painting multiple sides of the street lamp shell is achieved, and the painting efficiency is high. However, when the painting mechanism is used for a long time, the paint residue adhering to the nozzle of the spray head is easy to clog the spray head, and the staff needs to clean it frequently afterwards, which increases the workload of the staff. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a spray device for a street lamp housing to solve the technical problem that the paint residue adhering to the nozzle of the spray nozzle is easy to clog the spray nozzle during long-term use, and the staff needs to clean it frequently afterwards, which increases the workload of the staff.

[0006] The utility model is realized by the following technical solutions:

[0007] A spraying device for a street lamp housing, comprising a housing, a spraying mechanism disposed on the housing, the spraying mechanism comprising a spraying plate with a hollow structure, the spraying plate being mounted on the inner wall of the housing, a spray head connected to the inside of the spraying plate being mounted on the spraying plate, a storage box being mounted on the outer wall of the housing, a guide pipe being disposed between the storage box and the spraying plate, one end of the guide pipe being connected to the storage box, and the other end extending into the housing and connected to the spraying plate, and a delivery pump being disposed on the guide pipe;

[0008] A rotating shaft is arranged in the shell, and the rotating shaft extends along the width direction of the spray-painted board. A motor is installed on the outer wall of the shell, and the output shaft of the motor extends into the shell and is transmission-connected with the rotating shaft. A fixing mechanism for fixing the lamp housing of the street lamp is arranged on the rotating shaft;

[0009] A cleaning mechanism is provided inside the shell, and the cleaning mechanism includes a cleaning brush and a rotating ring. The rotating ring is rotatably connected to the inner wall of the shell, and the central axis of the rotating ring coincides with the central axis of the rotating shaft. A first connecting rod is provided between the rotating ring and the cleaning brush, and the two ends of the first connecting rod are respectively connected to the rotating ring and the cleaning brush. A second connecting rod is provided between the rotating shaft and the first connecting rod, and the two ends of the second connecting rod are respectively connected to the first connecting rod and the rotating shaft. The cleaning brush is synchronously driven to rotate by the rotation of the rotating shaft, and the cleaning brush cleans the paint adhered to the nozzle during the rotation.

[0010] Furthermore, a clutch assembly is provided on the rotating shaft, and the clutch assembly includes a first sleeve and a second sleeve, both of which are tubular structures. The first sleeve is fixedly connected to the second connecting rod away from one end of the first connecting rod. The first sleeve is slidably sleeved on the rotating shaft, and the second sleeve is fixedly sleeved on the rotating shaft. The first sleeve and the second sleeve are both provided with locking teeth at opposite ends. When the locking teeth of the first sleeve and the second sleeve are engaged, the second connecting rod and the rotating shaft are in a fixed state. When the locking teeth of the first sleeve and the second sleeve are separated, the second connecting rod and the rotating shaft are in a separated state.

[0011] Furthermore, the locking teeth are arranged at an angle, and an elastic component for maintaining the contact state of the first sleeve and the second sleeve is arranged between the rotating ring and the inner wall of the shell.

[0012] Further, the fixing mechanism includes two groups of support units symmetrically arranged about the rotating shaft, the support unit includes a mounting rod, one end of the mounting rod is fixedly connected to the rotating shaft, and the other end extends outward along the diameter direction of the rotating shaft, a slide groove extending along the length direction of the mounting rod is provided at the bottom of the mounting rod, a fixing rod is provided in the slide groove, the fixing rod is slidably matched with the slide groove, and a fixing block is provided at the outward end of the fixing rod;

[0013] The sliding sleeve on the rotating shaft is provided with a sliding sleeve, a third connecting rod is provided between the sliding sleeve and the fixed rod, two ends of the third connecting rod are respectively hinged to the fixed rod and the sliding sleeve, and a locking component for locking the sliding sleeve is provided on the rotating shaft.

[0014] Furthermore, the side wall of the rotating shaft is provided with a mounting hole extending along the axial diameter direction of the rotating shaft, the locking assembly comprises a locking hole, the locking column is located in the mounting hole, the outer end of the locking column is hemispherical, and the sliding sleeve is provided with a locking hole matching with the locking column;

[0015] A second spring is arranged between the locking column and the bottom of the mounting hole, and two ends of the second spring are respectively connected to the locking column and the bottom of the mounting hole.

[0016] Furthermore, an elastic rope is arranged in the slide groove, one end of the elastic rope is connected to an end of the fixing rod away from the fixing block, and the other end of the elastic rope is connected to the mounting rod.

[0017] The beneficial effects of the utility model are:

[0018] The spraying device for the lamp housing of a street lamp has a motor driving a rotating shaft to rotate. During the rotation process, the rotating shaft will also drive a cleaning brush to rotate with the rotating shaft as the rotating axis. During the rotation process, the cleaning brush will clean the paint residue adhering to the nozzle, so that the paint residue is not easy to clog the nozzle, thereby reducing the number of cleaning times of subsequent staff and reducing the workload of staff.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the fixing mechanism of an embodiment of the utility model;

[0025] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure.

[0026] In the figure: housing 1, paint spray plate 2, nozzle 3, storage box 4, guide tube 5, delivery pump 6, rotating shaft 7, motor 8, cleaning brush 9, rotating ring 10, first connecting rod 11, second connecting rod 12, first shaft sleeve 13, second shaft sleeve 14, locking tooth 15, pressing piece 16, first spring 17, mounting rod 18, slide groove 19, fixing rod 20, sliding sleeve 21, third connecting rod 22, mounting hole 23, locking column 24, locking hole 25, second spring 26, elastic rope 27, street lamp housing 28, fixing block 29. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0032] See also Figure 1-6 The utility model provides a technical solution: a spraying device for a street lamp housing, comprising a housing 1, a spraying mechanism arranged on the housing 1, the spraying mechanism comprising a spraying plate 2 with a hollow structure, the spraying plate 2 being mounted on the inner wall of the housing 1, a nozzle 3 connected to the inside of the spraying plate 2 being mounted on the spraying plate 2, a storage box 4 being mounted on the outer wall of the housing 1, a guide pipe 5 being arranged between the storage box 4 and the spraying plate 2, one end of the guide pipe 5 being connected to the storage box 4, the other end extending into the housing 1 and connected to the spraying plate 2, a delivery pump 6 being arranged on the guide pipe 5;

[0033] A rotating shaft 7 is arranged in the housing 1, and the rotating shaft 7 extends along the width direction of the spray-painted plate 2. A motor 8 is installed on the outer wall of the housing 1. The output shaft of the motor 8 extends into the interior of the housing 1 and is transmission-connected with the rotating shaft 7. A fixing mechanism for fixing the lamp housing 28 of the street lamp is arranged on the rotating shaft 7.

[0034] A cleaning mechanism is arranged inside the shell 1, and the cleaning mechanism includes a cleaning brush 9 and a rotating ring 10. The rotating ring 10 is rotatably connected to the inner wall of the shell 1, and the central axis of the rotating ring 10 coincides with the central axis of the rotating shaft 7. A first connecting rod 11 is arranged between the rotating ring 10 and the cleaning brush 9, and the two ends of the first connecting rod 11 are respectively connected to the rotating ring 10 and the cleaning brush 9. A second connecting rod 12 is arranged between the rotating shaft 7 and the first connecting rod 11, and the two ends of the second connecting rod 12 are respectively connected to the first connecting rod 11 and the rotating shaft 7. The cleaning brush 9 is synchronously driven to rotate by the rotation of the rotating shaft 7, and the cleaning brush 9 cleans the paint adhered to the nozzle 3 during the rotation process.

[0035] Among them, the shell 1 is a box structure with an open front end, and the opening of the shell 1 serves as an operating window for the staff, so that the staff can cross the opening to fix and disassemble the street lamp housing 28. Furthermore, in order to isolate the odor during the painting process and reduce the harm of paint to the human body, a cabinet door for closing the opening of the shell 1 can be set at the front end of the shell 1; a spraying mechanism is set on the shell 1, and the spraying mechanism includes a spraying plate 2 with a hollow structure, and the spraying plate 2 is installed on the inner wall of the shell 1. Furthermore, in order to save painting time and improve painting efficiency, two spraying plates 2 are set, and the two spraying plates 2 are respectively installed on the upper inner wall and the lower inner wall of the shell 1, and the length direction of the spraying plate 2 is parallel to the left wall of the shell 1; the spraying plate 2 is installed with a a nozzle 3 connected to the shell 1; a storage box 4 is installed on the outer wall of the shell 1, and the storage box 4 is used to store paint liquid. Furthermore, in order to facilitate the addition of paint liquid into the storage box 4, a feeding port connected to the inside of the storage box 4 is provided on the storage box 4, and a cover body for closing the feeding port is provided at the feeding port; a guide pipe 5 is provided between the storage box 4 and the paint spraying plate 2, one end of the guide pipe 5 is connected to the storage box 4, and the other end extends into the shell 1 and is connected to the paint spraying plate 2. The guide pipe 5 serves as a transmission channel for the paint, so that the paint in the storage box 4 can be transmitted to the paint spraying plate 2 through the guide pipe 5; a delivery pump 6 is provided on the guide pipe 5, and the delivery pump 6 serves as a power source for paint delivery and can increase the delivery pressure of the paint so that the paint can be sprayed out from the nozzle 3.

[0036] A rotating shaft 7 is arranged in the housing 1, and the rotating shaft 7 extends along the width direction of the spray-painted plate 2. A motor 8 is installed on the outer left wall of the housing 1. The output shaft of the motor 8 extends to the inside of the housing 1. The output shaft of the motor 8 is connected to the rotating shaft 7 through a coupling. The motor 8 is used as a power mechanism for driving the rotating shaft 7 to rotate. The rotating shaft 7 is provided with a fixing mechanism for fixing the street lamp housing 28. The fixing mechanism is used to fix the street lamp housing 28 on the rotating shaft 7, and then the street lamp housing 28 can be driven to rotate under the drive of the motor 8;

[0037] A cleaning mechanism is arranged inside the shell 1, and the cleaning mechanism includes a cleaning brush 9 and a rotating ring 10. Two concentric limit rings are arranged on the inner wall of the shell 1, and the central axes of the two limit rings coincide with the central axis of the rotating shaft 7. An annular groove for installing the rotating ring 10 is formed between the two limit rings. The rotating ring 10 is located in the annular groove and can rotate along the annular groove. The central axis of the rotating ring 10 coincides with the central axis of the rotating shaft 7; a first connecting rod 11 is arranged between the rotating ring 10 and the cleaning brush 9, and the two ends of the first connecting rod 11 are respectively connected to the rotating ring 10 and the cleaning brush 9, and a second connecting rod 12 is arranged between the rotating shaft 7 and the first connecting rod 11, and the two ends of the second connecting rod 12 are respectively connected to the first connecting rod 11 and the rotating shaft 7, and the cleaning brush 9 is synchronously driven to rotate by the rotation of the rotating shaft 7, and the cleaning brush 9 cleans the paint adhered to the nozzle 3 during the rotation process. Furthermore, in order to increase the stability of the cleaning brush 9 during rotation, there are two rotating rings 10 , which are rotatably connected to the left and right inner walls of the shell 1 respectively, and the two rotating rings 10 and the cleaning brush 9 are connected through a first connecting rod 11 .

[0038] When in use, first fix the street lamp housing 28 on the rotating shaft 7 through the fixing mechanism, and then start the delivery pump 6. The delivery pump 6 delivers the paint liquid in the storage box 4 to the paint spraying plate 2 through the guide pipe 5 and then sprays it outward through the nozzle 3. The paint liquid sprayed by the nozzle 3 adheres to the street lamp housing 28, and then starts the motor 8 urgently. The motor 8 drives the rotating shaft 7 to rotate, and then drives the street lamp housing 28 to rotate synchronously. During the rotation process, the street lamp housing 28 will make the entire outer surface of the street lamp housing 28 coated with paint. At the same time, during the rotation process, the rotating shaft 7 will also drive the cleaning brush 9 to rotate with the rotating shaft 7 as the rotating shaft 7. During the rotation process, the cleaning brush 9 will clean the paint residues adhered to the nozzle 3, so that the paint residues are not easy to clog the nozzle 3, thereby reducing the number of cleaning times for subsequent staff and reducing the workload of staff.

[0039] In this embodiment: a clutch assembly is provided on the rotating shaft 7, and the clutch assembly includes a first sleeve 13 and a second sleeve 14, both of which are tubular structures. The first sleeve 13 is fixedly connected to the end of the second connecting rod 12 away from the first connecting rod 11. The first sleeve 13 is slidably sleeved on the rotating shaft 7, and the second sleeve 14 is fixedly sleeved on the rotating shaft 7. Locking teeth 15 are provided on the opposite ends of the first sleeve 13 and the second sleeve 14. When the locking teeth 15 of the first sleeve 13 and the second sleeve 14 are engaged, the second connecting rod 12 and the rotating shaft 7 are in a fixed state. When the locking teeth 15 of the first sleeve 13 and the second sleeve 14 are separated, the second connecting rod 12 and the rotating shaft 7 are in a separated state.

[0040] In order to use the cleaning brush 9 only when it is necessary to clean the paint residue on the nozzle 3, thereby reducing the use of the cleaning brush 9 and reducing the wear of the cleaning brush 9, a clutch assembly is arranged on the rotating shaft 7, and the clutch assembly includes a first sleeve 13 and a second sleeve 14, both of which are tubular structures. The first sleeve 13 is fixedly connected to the end of the second connecting rod 12 away from the first connecting rod 11. The first sleeve 13 is slidably sleeved on the rotating shaft 7, and the second sleeve 14 is fixedly sleeved on the rotating shaft 7. Locking teeth 15 are arranged on the opposite ends of the first sleeve 13 and the second sleeve 14. When the locking teeth 15 of the first sleeve 13 and the second sleeve 14 are engaged, the second connecting rod 12 is in a fixed state with the rotating shaft 7. When the locking teeth 15 of the first sleeve 13 and the second sleeve 14 are separated, the second connecting rod 12 is in a separated state with the rotating shaft 7. Before starting the motor 8, determine whether cleaning is needed based on the adhesion state of the paint residue on the nozzle 3. When cleaning is needed, pull the first connecting rod toward the second sleeve 14, and the first sleeve 13 will be driven toward the second sleeve 14 under the transmission action of the second connecting rod, and finally the locking teeth 15 of the first sleeve 13 and the second sleeve 14 will be engaged, so that the cleaning brush 9 can be driven to rotate when the shaft 7 rotates, thereby cleaning the paint residue; when cleaning is not needed, pull the first connecting rod toward the direction away from the second sleeve 14, and the first sleeve 13 will be driven away from the second sleeve 14 under the transmission action of the second connecting rod, and finally the locking teeth 15 of the first sleeve 13 and the second sleeve 14 will be separated, so that the cleaning brush 9 will not be driven to rotate when the shaft 7 rotates, thereby reducing the use of the cleaning brush 9 and reducing the wear of the cleaning brush 9.

[0041] In this embodiment, the locking teeth 15 are arranged obliquely, and an elastic component for maintaining the contact state between the first sleeve 13 and the second sleeve 14 is arranged between the rotating ring 10 and the inner wall of the housing 1 .

[0042] Specifically, the locking teeth 15 on the first sleeve 13 are arranged to be tilted downward, and the locking teeth 15 on the second sleeve 14 are arranged to be tilted upward. The elastic component includes a pressing plate 16 and a first spring 17. The pressing plate 16 is an annular structure. The pressing plate 16 is located in the annular groove and slides with the annular groove. The outer side of the pressing plate 16 abuts against the rotating ring 10. The first spring 17 is arranged in the annular groove. One end of the first spring 17 is connected to the pressing plate 16, and the other end is connected to the housing 1. Under the elastic force of the first spring 17, the first sleeve 13 and the second sleeve 14 will always maintain a contact state. When the rotating shaft 7 rotates counterclockwise, the first sleeve 13 will push the second sleeve 14 to slide away from the first sleeve 13 under the action of the inclined surface of the locking teeth 15, and the locking teeth 15 of the first sleeve 13 and the second sleeve 14 will be disengaged, and then the first sleeve 13 will be pushed to slide in the direction of the second sleeve 14 under the elastic force of the first spring 17 so that the locking teeth 15 will be engaged, and the locking teeth 15 of the first sleeve 13 and the second sleeve 14 will be periodically engaged and disengaged under the continuous action. During this process, the rotation of the second sleeve 14 will not drive the first sleeve 13 to rotate; when the rotating shaft 7 rotates clockwise, the locking teeth 15 of the first sleeve 13 and the second sleeve 14 will always remain engaged, and the second sleeve 14 will drive the first sleeve 13 to rotate;

[0043] Specifically, in order to realize the back and forth rotation of the rotating shaft 7, the motor 8 is limited to a servo motor 8. When the rotating shaft 7 rotates clockwise, the second sleeve 14 drives the first sleeve 13 to rotate, and then drives the cleaning brush 9 to rotate. When the rotating shaft 7 rotates counterclockwise, the second sleeve 14 will not drive the first sleeve 13 to rotate, and then will not drive the cleaning brush 9 to rotate.

[0044] In this embodiment, there are multiple nozzles 3, which are arranged in multiple rows along the length direction of the spray painting board 2, each row is provided with three nozzles 3, and the nozzles 3 at both ends of each row are arranged to be inclined towards each other.

[0045] By changing the tilt direction of the spray head 3, the side of the street lamp housing 28 can be sprayed, thereby improving the coverage rate of the spraying.

[0046] In this embodiment: the fixing mechanism includes two groups of support units symmetrically arranged about the rotating shaft 7, the support unit includes a mounting rod 18, one end of the mounting rod 18 is fixedly connected to the rotating shaft 7, and the other end extends outward along the diameter direction of the rotating shaft 7, a slide groove 19 extending along the length direction of the mounting rod 18 is provided at the bottom of the mounting rod 18, a fixing rod 20 is arranged in the slide groove 19, the fixing rod 20 is slidably matched with the slide groove 19, and a fixing block 29 is arranged at the outward end of the fixing rod 20;

[0047] A sliding sleeve 21 is provided on the rotating shaft 7, a third connecting rod 22 is provided between the sliding sleeve 21 and the fixed rod 20, two ends of the third connecting rod 22 are respectively hinged to the fixed rod 20 and the sliding sleeve 21, and a locking component for locking the sliding sleeve 21 is provided on the rotating shaft 7.

[0048] When fixing the lamp housing 28 of the street lamp, first adjust the fixing rod 20 so that the fixing rod 20 is retracted into the slide groove 19, then extend the installation rod 18 into the lamp housing 28 through the installation opening of the lamp housing 28, slide the sliding sleeve 21 toward the installation rod 18, and the sliding sleeve 21 will push the two fixing rods 20 to slide in the slide groove 19 in reverse direction under the transmission action of the third connecting rod 22, thereby driving the fixing block 29 to move in reverse direction, and the fixing block 29 finally abuts against the inner wall of the lamp housing 28 to fix the lamp housing 28, and the locking assembly fixes the sliding sleeve 21 on the rotating shaft 7 to keep the fixing block 29 fixed to the lamp housing 28;

[0049] When releasing the fixing block 29 from fixing the street lamp housing 28, loosen the fixing of the locking assembly on the sliding sleeve 21, and then pull the sliding sleeve 21 to slide away from the mounting rod 18. Under the transmission action of the third connecting rod 22, the fixing rod 20 will be pulled towards each other, and then the fixing block 29 will loosen the fixing on the inner wall of the street lamp housing 28, and finally the street lamp housing 28 can be taken out.

[0050] In this embodiment: a mounting hole 23 extending along the axial direction of the rotating shaft 7 is formed on the side wall of the rotating shaft 7, the locking assembly includes a locking hole 25, a locking column 24 is located in the mounting hole 23, the outer end of the locking column 24 is hemispherical, a locking hole 25 matching with the locking column 24 is formed on the sliding sleeve 21, and the end surface of the sliding sleeve 21 close to the mounting rod 18 is provided with a rounded corner for facilitating the locking column 24 to retract into the mounting hole 23;

[0051] A second spring 26 is provided between the locking column 24 and the bottom of the mounting hole 23 , and both ends of the second spring 26 are connected to the locking column 24 and the bottom of the mounting hole 23 respectively. When the spring is in a free state, the hemispherical part of the locking column 24 is located outside the mounting hole 23 .

[0052] When locking, the sliding sleeve 21 is pulled toward the mounting rod 18, and the inner wall of the sliding sleeve 21 squeezes the locking column 24, and the locking column 24 retracts inward into the mounting hole 23. The sliding sleeve 21 is continued to be pulled. When the mounting hole 23 coincides with the locking hole 25, the locking column 24 will pop out again under the action of the spring and pass through the locking hole 25, and be locked under the cooperation of the locking hole 25; when unlocking, the locking column 24 is pressed, and the locking column 24 slides into the mounting hole 23. When the hemispherical surface is lower than the inner wall of the sliding sleeve 21, the sliding sleeve 21 is pulled to make the locking column 24 further retract into the mounting hole 23. At this time, the sliding sleeve 21 can be slid arbitrarily to release the lock of the sliding sleeve 21 by the locking column 24.

[0053] In this embodiment, an elastic rope 27 is arranged in the slide groove 19 , one end of the elastic rope 27 is connected to the end of the fixing rod 20 away from the fixing block 29 , and the other end is connected to the installation rod 18 .

[0054] By using the elastic reset structure of the elastic rope 27, the elastic rope 27 will be stretched when fixing the street lamp housing 28. When the locking assembly is released from fixing the sliding sleeve 21, the fixing rod 20 will slide towards each other and retreat into the sliding groove 19 under the elastic force of the elastic rope 27, thereby reducing the operation of manually resetting the fixing rod 20 and making it more convenient to use.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A spraying device for a street lamp housing, characterized in that: It comprises a shell, on which a spraying mechanism is arranged, the spraying mechanism comprises a spraying plate with a hollow structure, the spraying plate is mounted on the inner wall of the shell, a spray head connected to the inside of the spraying plate is mounted on the spraying plate, a storage box is mounted on the outer wall of the shell, a guide pipe is arranged between the storage box and the spraying plate, one end of the guide pipe is connected to the storage box, and the other end extends into the shell and connected to the spraying plate, and a delivery pump is arranged on the guide pipe; A rotating shaft is arranged in the shell, and the rotating shaft extends along the width direction of the spray-painted board. A motor is installed on the outer wall of the shell, and the output shaft of the motor extends into the shell and is transmission-connected with the rotating shaft. A fixing mechanism for fixing the lamp housing of the street lamp is arranged on the rotating shaft; A cleaning mechanism is provided inside the shell, and the cleaning mechanism includes a cleaning brush and a rotating ring. The rotating ring is rotatably connected to the inner wall of the shell, and the central axis of the rotating ring coincides with the central axis of the rotating shaft. A first connecting rod is provided between the rotating ring and the cleaning brush, and the two ends of the first connecting rod are respectively connected to the rotating ring and the cleaning brush. A second connecting rod is provided between the rotating shaft and the first connecting rod, and the two ends of the second connecting rod are respectively connected to the first connecting rod and the rotating shaft. The cleaning brush is synchronously driven to rotate by the rotation of the rotating shaft, and the cleaning brush cleans the paint adhered to the nozzle during the rotation.

2. A spraying device for a street lamp housing according to claim 1, characterized in that: A clutch assembly is arranged on the rotating shaft, and the clutch assembly includes a first sleeve and a second sleeve, both of which are tubular structures. The first sleeve is fixedly connected to the second connecting rod at one end away from the first connecting rod. The first sleeve is slidably sleeved on the rotating shaft, and the second sleeve is fixedly sleeved on the rotating shaft. Locking teeth are arranged on opposite ends of the first sleeve and the second sleeve. When the locking teeth of the first sleeve and the second sleeve are engaged, the second connecting rod and the rotating shaft are in a fixed state. When the locking teeth of the first sleeve and the second sleeve are separated, the second connecting rod and the rotating shaft are in a separated state.

3. A spraying device for a street lamp housing according to claim 2, characterized in that: The locking teeth are arranged obliquely, and an elastic component for maintaining the contact state between the first sleeve and the second sleeve is arranged between the rotating ring and the inner wall of the shell.

4. A spraying device for a street lamp housing according to claim 3, characterized in that: There are multiple nozzles, which are arranged in multiple rows along the length direction of the spray painting board, each row is provided with three nozzles, and the nozzles at both ends of each row are arranged to be inclined towards each other.

5. A spraying device for a street lamp housing according to any one of claims 1 to 4, characterized in that: The fixing mechanism comprises two groups of support units symmetrically arranged about the rotating shaft, the support unit comprises a mounting rod, one end of the mounting rod is fixedly connected to the rotating shaft, and the other end extends outwardly along the diameter direction of the rotating shaft, a slide groove extending along the length direction of the mounting rod is provided at the bottom of the mounting rod, a fixing rod is provided in the slide groove, the fixing rod is slidably matched with the slide groove, and a fixing block is provided at the outward end of the fixing rod; The sliding sleeve on the rotating shaft is provided with a sliding sleeve, a third connecting rod is provided between the sliding sleeve and the fixed rod, two ends of the third connecting rod are respectively hinged to the fixed rod and the sliding sleeve, and a locking component for locking the sliding sleeve is provided on the rotating shaft.

6. A spraying device for a street lamp housing according to claim 5, characterized in that: The side wall of the rotating shaft is provided with a mounting hole extending along the axial diameter direction of the rotating shaft, the locking assembly comprises a locking hole and a locking column, the locking column is located in the mounting hole, the outer end of the locking column is hemispherical, and the sliding sleeve is provided with a locking hole matching with the locking column; A second spring is arranged between the locking column and the bottom of the mounting hole, and two ends of the second spring are respectively connected to the locking column and the bottom of the mounting hole.

7. A spraying device for a street lamp housing according to claim 6, characterized in that: An elastic rope is arranged in the slide groove, one end of the elastic rope is connected to an end of the fixing rod away from the fixing block, and the other end of the elastic rope is connected to the installation rod.

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