A cleaning structure for a sign

Abstract

The present invention relates to the technical field of cleaning equipment, and provides a cleaning structure for a signboard, including a lifting platform, a sliding cleaning unit, and a limit block. The sliding cleaning unit includes a sliding platform and a scraper in an inverted V structure, as well as an active shaft and a passive shaft arranged on the sliding platform. One end of the active shaft is connected to a passive end face gear, and the passive end face gear corresponds to the active end face gear on the output end of the motor connected to the lifting platform. The sliding cleaning unit is lifted and abutted against the limit block to mesh the passive end face gear with the active end face gear. The active gear sleeved on the active shaft is meshed with the passive gear sleeved on the passive shaft to form a driving structure and drive the scraper on the sliding platform to rotate to complete cleaning. In the initial state, the upper ends of the two scrapers are attached and form a certain angle to form an inverted V shape. This design can ensure that the pressure distribution during the cleaning process is more uniform, and avoid the pressure of a single scraper being concentrated in the center and causing insufficient pressure at the edge.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular to a cleaning structure for a signboard. Background Art

[0002] According to the publication number: CN116704875A, the patent title: A self-cleaning sign uses a whole scraper to clean the surface. However, this design has many shortcomings in practical applications, the most prominent of which is the problem of uneven cleaning.

[0003] Since the pressure applied by a single scraper during the cleaning process is unevenly distributed, some areas on the surface of the display board cannot be effectively cleaned, and dust and dirt remain significantly. At the same time, scratches or damage will occur due to stress concentration. This uneven cleaning effect not only affects the aesthetics of the display board, but may also shorten its service life. For this reason, we propose a cleaning structure for signboards. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention provides a cleaning structure for a sign, which overcomes the deficiencies of the prior art, has a reasonable design, a compact structure, and solves the problems raised in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A cleaning structure for a signboard includes a lifting platform that rises and falls on the signboard, a sliding cleaning unit that slides on the lifting platform, and a limit block installed on the signboard. The sliding cleaning unit includes a sliding platform and a scraper in an inverted V structure, as well as a driving shaft and a passive shaft arranged on the sliding platform. One end of the driving shaft is connected to a passive end face gear, and the passive end face gear corresponds to the driving end face gear on the output end of a motor connected to the lifting platform. The sliding cleaning unit is lifted and abutted against the limit block to mesh the passive end face gear with the driving end face gear. The driving gear sleeved on the driving shaft is meshed with the passive gear sleeved on the passive shaft to form a driving structure and drive the scraper on the sliding platform to rotate to complete cleaning.

[0009] Preferably, a lifting platform is arranged inside the signboard, and is lifted up and down by a slide groove inside the signboard. A fixed pulley is also fixedly arranged inside the signboard and is located at the top of the lifting platform. A rope is fixedly connected to the output end of the motor fixedly mounted on the lifting platform. The rope extends around the fixed pulley to the bottom of the signboard and is fixed on the bottom of the signboard. When the motor rotates, the lifting platform as a whole can be lifted inside the signboard around the rope.

[0010] Preferably, the sliding cleaning unit is placed on the outside of the identification plate through an L-shaped connecting rod.

[0011] Preferably, the sliding cleaning unit also includes an arc-shaped plate located on both sides of the sliding platform, and the connecting rod connected to the arc-shaped surface of the arc-shaped plate is hinged on the sliding platform so that it rotates about the hinge point, and the extension rod and the rotating rod are hinged one by one on the upper arc-shaped end of the arc-shaped plate, and the rotating rod is fixedly sleeved on the driving shaft, and a connecting plate is connected to the lower arc-shaped end of the arc-shaped plate, and a shaft body is hinged on the connecting plate, and a scraper for cleaning the sign is connected to the shaft body.

[0012] Preferably, a plurality of springs are connected equidistantly between the scraper and the connecting plate, which can be deflected to maintain a consistent pressure of the scraper on the identification plate.

[0013] Preferably, a strip groove is provided on the sliding platform, a scraping rod is slidably arranged in the strip groove, and an inclined groove corresponding to the scraper is provided on the scraping rod.

[0014] Preferably, the sliding cleaning unit is also connected to a driven shaft located on one side of the driving shaft and the driven shaft, the diameter of the driven shaft is larger than the diameter of the driving shaft, the driven shaft is connected to a first gear and a second gear, the first gear on one side of the driven shaft is meshed with the driving shaft, and the first gear on the other side is meshed with the driven shaft, and the rack connected to the top end of the scraping rod is meshed with the second gear of the driven shaft.

[0015] Preferably, the oblique groove end of the oblique groove passes through the scraping rod, and the length of the oblique groove is smaller than the length of the scraping rod.

[0016] (III) Beneficial effects

[0017] The embodiment of the present invention provides a cleaning structure for a sign, which has the following beneficial effects:

[0018] 1. The sliding cleaning unit includes two scrapers. In the initial state, the upper ends of the two scrapers are attached and form a certain angle to form an inverted V shape. This design can ensure a more uniform pressure distribution during the cleaning process and avoid the pressure of a single scraper being concentrated in the center and causing insufficient pressure at the edge.

[0019] 2. When the sliding cleaning unit reaches the top of the sign, the limit block causes the sliding cleaning unit to slide toward the lifting platform. The motor drives the active shaft to rotate, and then drives the rotating rod and the arc plate to rotate, and the scraper is expanded to both sides. This expansion mechanism can ensure that the scraper can cover the edge area of ​​the sign during the cleaning process to avoid dust accumulation.

[0020] 3. Connect multiple springs equidistantly between the scraper and the connecting plate. When the scraper approaches the identification plate, the springs can adjust the angle of the scraper to keep the pressure of the scraper on the identification plate consistent. This design can further ensure the uniform distribution of pressure during the cleaning process to avoid scratches or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic side view of the structure of the present invention;

[0023] Figure 3 is a schematic diagram of a lifting platform of the present invention;

[0024] Figure 4 is a schematic diagram of a sliding platform of the present invention;

[0025] Figure 5 The structure of the present invention Figure 4 A three-dimensional schematic diagram of

[0026] Figure 6 The structure of the present invention Figure 1 A partial schematic diagram of

[0027] Figure 7 A schematic diagram of a novel embodiment of the present invention;

[0028] Figure 8 The structure of the present invention Figure 7 A partial schematic diagram of

[0029] Fig. 9 Schematic diagram of the scraping rod structure of the present invention.

[0030] In the figure: 1. lifting platform; 11. motor; 12. fixed pulley; 2. sliding platform; 21. driving shaft; 22. driving gear; 23. driven shaft; 24. driven gear; 3. arc plate; 31. connecting rod; 32. extension rod; 33. rotating rod; 34. connecting plate; 35. shaft body; 36. scraper; 37. spring; 4. driven shaft body; 5. scraper rod; 51. rack; 52. inclined groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.

[0032] See attached Figure 1-5 , a cleaning structure for a signboard, comprising a lifting platform 1 arranged inside the signboard, and lifting and lowering through a slide groove inside the signboard, a fixed pulley 12 is also fixedly arranged inside the signboard and located at the top of the lifting platform 1, a rope is fixedly connected to the output end of a motor 11 fixedly mounted on the lifting platform 1, the rope extends around the fixed pulley 12 to the bottom of the signboard and is fixed to the bottom of the signboard, when the motor 11 rotates, the lifting platform 1 can be lifted inside the signboard around the rope, and vice versa, it is lowered, and also comprises a sliding cleaning unit sliding on the lifting platform 1, the sliding cleaning unit slides through the slide groove of the slide rail, the sliding cleaning unit can be directly placed on the lifting platform 1 as needed, and can also be placed on the outside of the signboard through an L-shaped connecting rod;

[0033] The sliding cleaning unit includes a sliding platform 2, and a driving shaft 21 and a passive shaft 23 arranged on the sliding platform 2. The driving gear 22 sleeved on the driving shaft 21 is meshed with the passive gear 24 sleeved on the passive shaft 23 to form a driving structure, and the passive end face gear on the driving shaft 21 corresponds to the driving end face gear on the output end of the motor 11 and leaves a certain gap. At this time, if the motor 11 rotates and lifts, it will drive the sliding cleaning unit to lift. After reaching the specified position, it will abut against the limit block on the identification plate to drive the sliding cleaning unit to slide in the direction of the lifting platform 1 until the driving end face gear and the passive end face gear are meshed with each other to drive the driving shaft 21 to rotate;

[0034] The sliding cleaning unit also includes an arc-shaped plate 3 located on both sides of the sliding platform 2. The connecting rod 31 connected to the arc surface of the arc-shaped plate 3 is hinged on the sliding platform 2 so that it rotates at the hinge point, and the extension rod 32 and the rotating rod 33 are hinged on the upper arc-shaped end of the arc-shaped plate 3 one by one. The rotating rod 33 is fixedly sleeved on the active shaft 21. A connecting plate 34 is connected to the lower arc-shaped end of the arc-shaped plate 3. A shaft body 35 is hinged on the connecting plate 34. A scraper 36 for cleaning the identification plate is connected to the shaft body 35. In the initial state, the upper ends of the two scrapers 36 are attached and form a certain angle to form an inverted V shape. The sliding cleaning unit cleans the identification plate from bottom to top. When it reaches the top, that is, the specified position, the limit block prompts the sliding cleaning unit to slide toward the lifting platform 1. At this time, the active The end face gear is meshed with the passive end face gear of the active shaft 21, which drives the active shaft 21 to rotate. When the active shaft 21 rotates, the active shaft 21 and the passive shaft 23 rotate in opposite directions, driving the rotating rod 33 to rotate. The arc plate 3 can be rotated at the hinge point under the push of the extension rod 32, and the scraper 36 is spread out to both sides until the connecting plate 34 is kept parallel to the sliding platform 2. At this time, the display board can be completely cleaned. This method can solve the problem that the pressure of a single scraper is concentrated on the center of the scraper, while the pressure on the edge is insufficient, and the dust in the edge area cannot be thoroughly cleaned. In addition, the single scraper will push the dust from one end to the other end, which is easy to form dust accumulation at the end point of the scraper movement. The present invention can spread out the dust accumulated by the single scraper at the end point, and it will not stay on the sign.

[0035] Furthermore, since the scraper 36 is connected to the sliding cleaning unit, when the sliding cleaning unit approaches the lifting platform 1, the scraper 36 must get closer to the sign. We use multiple springs 37 equidistantly connected between the scraper 36 and the connecting plate 34. When the scraper 36 approaches, the scraper 36 can deflect to keep the pressure of the scraper 36 on the sign consistent.

[0036] See attached Figure 7-9Furthermore, when the scraper 36 performs cleaning action for a long time, dust will inevitably accumulate on the surface of the scraper 36. For this reason, a driven shaft body 4 located on one side of the active shaft 21 and the passive shaft 23 is also connected to the sliding cleaning unit. The diameter of the driven shaft body 4 is larger than the diameter of the active shaft 21. The driven shaft body 4 is connected to the first gear and the second gear. The first gear on one side of the driven shaft body 4 is meshed with the active shaft 21, and the first gear on the other side is meshed with the passive shaft 23. A strip groove is provided on the sliding platform 2, and a scraping rod 5 is slidably arranged in the strip groove. The rack 51 connected to the top of the scraping rod 5 is meshed with the driven shaft body The second gear of 4 is meshed, and an inclined groove 52 corresponding to the scraper 36 is opened on the scraper rod 5. Since the diameter of the driven shaft body 4 is larger than the diameter of the driving shaft 21, when the driving shaft 21 rotates, the scraper 36 is extended outward. At this time, the rotation angle of the driven shaft body 4 is small, and the scraper rod 5 is controlled to slightly move laterally to the outside of the lifting platform 1. The driving shaft 21 continues to rotate, and the scraper 36 enters the inclined groove 52 until the scraper 36 is separated from the inclined groove 52, that is, the dust of the scraper 36 close to the scraper rod 5 is removed by the end of the inclined groove 52, and the dust far away from the end is that the scraper 36 is separated from the inclined groove 52, causing the scraper 36 to vibrate and be removed.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleaning structure for a signboard, comprising a lifting platform (1) that is lifted and lowered on the signboard, a sliding cleaning unit that slides on the lifting platform (1), and a limit block installed on the signboard; Features: The sliding cleaning unit comprises a sliding platform (2) and a scraper (36) in an inverted V structure, and a driving shaft (21) and a passive shaft (23) arranged on the sliding platform (2); one end of the driving shaft (21) is connected to a passive end face gear, the passive end face gear corresponds to the driving end face gear on the output end of the motor (11) connected to the lifting platform (1); the sliding cleaning unit is lifted and abutted against the limit block to mesh the passive end face gear with the driving end face gear; The driving gear (22) sleeved on the driving shaft (21) and the passive gear (24) sleeved on the passive shaft (23) are meshed and connected to form a driving structure and drive the scraper (36) on the sliding platform (2) to rotate to complete cleaning.

2. A cleaning structure for a sign as claimed in claim 1, characterized in that: The lifting platform (1) is arranged inside the sign and is lifted up and down by means of a slide groove inside the sign. A fixed pulley (12) is also fixedly arranged inside the sign and is located at the top of the lifting platform (1). A rope is fixedly connected to the output end of a motor (11) fixedly mounted on the lifting platform (1). The rope extends around the fixed pulley (12) to the bottom of the sign and is fixed to the bottom of the sign. When the motor (11) rotates, the lifting platform (1) can be lifted inside the sign as a whole around the rope.

3. The cleaning structure of a signboard according to claim 1, characterized in that: The sliding cleaning unit is placed on the outside of the identification plate through an L-shaped connecting rod.

4. The cleaning structure of a signboard according to claim 1, characterized in that: The sliding cleaning unit also includes an arc-shaped plate (3) located on both sides of the sliding platform (2); a connecting rod (31) connected to the arc-shaped surface of the arc-shaped plate (3) is hinged on the sliding platform (2) so that it rotates at the hinge point; and an extension rod (32) and a rotating rod (33) are hinged one by one on the upper arc-shaped end of the arc-shaped plate (3); the rotating rod (33) is fixedly sleeved on the driving shaft (21); a connecting plate (34) is connected to the lower arc-shaped end of the arc-shaped plate (3); a shaft (35) is hinged on the connecting plate (34); and a scraper (36) for cleaning the identification plate is connected to the shaft (35).

5. A cleaning structure for a sign as claimed in claim 4, characterized in that: A plurality of springs (37) are equidistantly connected between the scraper (36) and the connecting plate (34) so ​​as to be deflected to maintain a consistent pressure of the scraper (36) on the identification plate.

6. The cleaning structure of a signboard according to claim 1, characterized in that: The sliding platform (2) is provided with a strip groove, a scraping rod (5) is slidably arranged in the strip groove, and an inclined groove (52) corresponding to the scraper (36) is provided on the scraping rod (5).

7. A cleaning structure for a sign as claimed in claim 6, characterized in that: The sliding cleaning unit is also connected to a driven shaft (4) located on one side of the driving shaft (21) and the driven shaft (23); the diameter of the driven shaft (4) is larger than the diameter of the driving shaft (21); a first gear and a second gear are connected to the driven shaft (4); the first gear on one side of the driven shaft (4) meshes with the driving shaft (21), and the first gear on the other side meshes with the driven shaft (23); and a rack (51) connected to the top end of the scraping rod (5) meshes with the second gear of the driven shaft (4).

8. A cleaning structure for a sign as claimed in any one of claims 6 to 7, characterized in that: The oblique groove end of the oblique groove (52) passes through the scraping rod (5), and the length of the oblique groove (52) is smaller than the length of the scraping rod (5).

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