Dust removal device for library

Abstract

The utility model discloses a dust removal device for a library, and belongs to the technical field of dust removal devices. The dust removal device for the library comprises a main shell, a book clamping structure is installed at the top end of the main shell, an air supply pipe is installed at the top end of the book clamping structure, a supporting structure is installed at the bottom end of the book clamping structure, a telescopic structure is installed on the inner side of the main shell in a penetrating mode, and an air injection frame is fixedly installed at the rear end of the telescopic structure. Through the arrangement of the book clamping structure, the supporting structure and the telescopic structure, the book clamping structure and the supporting structure can clamp and lift up books, the telescopic structure can enable the cleaning structure to stretch into the position below the books to clean a bookshelf shielded by the books, the situation that the books are lifted up in a short distance manually is replaced, and after the positions, where the books are placed, of the bookshelf are cleaned up, the books are cleaned up. In addition, the books do not need to be moved down and placed again in the operation process, the bookshelf shielded by the books is thoroughly cleaned, meanwhile, the speed is high, and the efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of libraries, and more specifically to a dust removal device for libraries. Background Art

[0002] A library is a special place provided for readers to use documents within the library. Because there are so many documents and books, multiple rows of bookshelves are needed to carry them. However, since the structure of the bookshelves is transparent and grid-like, the books are exposed outside, resulting in serious dust accumulation in the exposed parts of the books and bookshelves. Regular cleaning is required to ensure the cleanliness of the books and bookshelves.

[0003] The existing dust removal devices for libraries are very simple. For example, people use hand-held rags to wipe, or use vacuum cleaners to attract and remove dust from the exposed surfaces of books and bookshelves. However, the position where books are placed on the bookshelf cannot be directly wiped, and the vacuum cleaner cannot reach it directly. There are a large number of sanitary dead corners that cannot be thoroughly cleaned. When thorough cleaning is required, the books can only be moved down or picked up, and the position where the books are placed on the bookshelf must be wiped clean before the books are put back. All of these require manual operation, and the speed of thorough cleaning is very slow and inefficient. In view of this, we propose a dust removal device for libraries. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model aims to provide a dust removal device for a library, so as to solve the problem of low cleaning efficiency of the existing dust removal device mentioned in the above background technology.

[0006] 2. Technical solution

[0007] A dust removal device for a library comprises a main shell 1, characterized in that: a book clamping structure 3 is installed at the top of the main shell 1, the book clamping structure 3 comprises two sleeves 302, a round hole plug is installed at the opening position of the sleeve 302 through a threaded connection, a telescopic clamp 305 is slidably installed in the middle of the round hole plug, an air supply pipe 2 is installed at the top of the sleeve 302, a support structure 4 is installed at the bottom end of the book clamping structure 3, the support structure 4 comprises an outer box 401, a bracket 403 is installed through the side wall of the bottom end of the outer box 401, a slide plate 402 is fixedly installed on the top of the bracket 403, a telescopic structure 5 is installed through the inner side of the main shell 1, and a jet frame 7 is fixedly installed at the rear end of the telescopic structure 5.

[0008] The books can be lifted up by the dust-clearing air pressure, allowing the bookshelf below to be thoroughly cleaned.

[0009] Preferably, the main shell comprises a shell, a dust suction channel opening backwards is provided at the lower part of the shell, an air suction pipe is installed at the bottom end of the main shell, and the air suction pipe and the dust suction channel are connected to each other.

[0010] The dust-laden gas can be recovered to prevent the dust from flying and contaminating the books and cleaned areas.

[0011] Preferably, an air outlet is provided at the bottom end of the jet frame, and a swing plate is rotatably mounted on the bottom end of the jet frame through a torsion spring.

[0012] The jet will blow and scrape away the dust.

[0013] Preferably, the book clamping structure includes a sliding frame, two sleeves are fixedly installed on the left and right sides of the sliding frame, a round hole plug is installed at the opening position of the sleeve through a threaded connection, a spring is fixedly installed on the inner wall of the sleeve, a telescopic clip is fixedly installed on the end of the spring, the telescopic clip passes through the sliding connection round hole plug, the air supply pipe is connected with the sleeve through a conducting connection, and an air pipe is installed through the middle of the front side of the sleeve.

[0014] The book can be clamped and the gas directed to subsequent equipment.

[0015] Preferably, the telescopic clamp comprises a single-rod piston and a clamping plate, the single-rod piston is slidably mounted on the inner side of the sleeve, the piston head of the single-rod piston is located between the end of the air pipe and the end of the air supply pipe, the clamping plate is located outside the sleeve, and the clamping plate adopts a thin plate structure

[0016] The book can be clamped and guided vertically.

[0017] Preferably, the supporting structure includes an outer box, a bracket is installed through the side wall of the bottom end of the outer box, the top of the bracket is located inside the outer box, a slide is fixedly installed on the top of the bracket, a corrugated sleeve is fixedly installed on the bottom end of the slide, the bottom end of the corrugated sleeve is fixedly connected to the inner wall of the bottom end of the outer box, the top of the outer box and the bottom end of the air pipe are fixedly connected, an outlet pipe is installed through the lower part of the front side wall of the outer box, and a manual pressure relief valve is installed on the outlet pipe.

[0018] The clamped book can be lifted together with the book clamping structure above.

[0019] Preferably, the telescopic structure includes a bellows, which is divided into a smooth cylinder sleeved on the outside and a bellows installed inside the smooth cylinder, a single-end cylinder is sealed and slidably plugged into the front inner side of the bellows, a connecting plate is fixedly installed on the front end of the single-end cylinder, an inner tube is plugged and installed on the rear inner side of the single-end cylinder, the rear outer wall of the inner tube is fixedly connected to the rear end of the corrugated sleeve, a sealing sleeve is fixedly installed on the front outer wall, the sealing sleeve and the inner wall of the single-end cylinder are sealingly and slidably connected, an adjusting nut is rotatably installed in the middle of the connecting plate, a threaded rod is installed through the middle of the adjusting nut, and the rear end of the threaded rod is fixedly connected to the front side wall of the shell.

[0020] The jet frame can be extended under the books to clean the obstructed shelves.

[0021] Preferably, a guide piece is slidably plugged and installed inside the shell, the rear end of the guide piece is fixedly connected to the front side wall of the jet frame, and the guide piece adopts a spring telescopic rod.

[0022] The jet frame can be retracted after cleaning.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] 1. The utility model is provided with a book clamping structure, a supporting structure and a telescopic structure. The book clamping structure and the supporting structure can clamp and lift the books. The telescopic structure can extend the cleaning structure under the books to clean the bookshelf blocked by the books, instead of manually lifting the books for a short distance. After wiping the position where the books are placed on the bookshelf, the books can be put back. During operation, there is no need to move down and rearrange the books. The bookshelf blocked by the books can be thoroughly cleaned. At the same time, the speed is very fast and the efficiency is low.

[0026] 2. The utility model arranges the guide member, the jet frame and the swing plate. The guide member adopts a spring structure and is extended by air pressure during cleaning. The jet frame is retracted when the guide member rebounds. When the jet frame and the swing plate are retracted, the swing plate can scrape the surface of the bookshelf and scrape out the dust that is not blown away forward, so as to clean thoroughly. Moreover, the forward extension distance of the single-mouth tube can be adjusted and the backward extension distance of the jet frame can be adjusted to adapt to different depths of the bookshelf, so the utility model has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model from a main viewing angle;

[0028] Figure 2 It is a rear side schematic diagram of the book clamping structure and the supporting structure of the utility model;

[0029] Figure 3 It is a rear view schematic diagram of the jet frame, the supporting structure and the telescopic structure of the utility model;

[0030] Figure 4 It is a schematic cross-sectional view of the jet frame and the telescopic structure of the utility model.

[0031] Explanation of the numbers in the figure: main shell 1; air supply pipe 2; book clamping structure 3; supporting structure 4; telescopic structure 5; air suction pipe 6; jet frame 7; guide member 8; swing plate 9; shell 101; dust suction channel 102; sliding frame 301; sleeve 302; spring 303; air pipe 304; telescopic clamp 305; outer box 401; slide plate 402; bracket 403; air outlet pipe 404; corrugated cylinder 501; single-mouth cylinder 502; connecting plate 503; inner tube 504; threaded rod 505; sealing sleeve 506. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] See also Figure 1-4 ,This utility model provides three technical solutions:

[0036] Embodiment 1:

[0037] A dust removal device for a library, comprising a main shell 1, characterized in that: a book clamping structure 3 is installed at the top of the main shell 1, the book clamping structure 3 comprises two sleeves 302, a round hole plug is installed at the opening position of the sleeve 302 through a threaded connection, a telescopic clamp 305 is slidably installed in the middle of the round hole plug, an air supply pipe 2 is installed at the top of the sleeve 302, a support structure 4 is installed at the bottom of the book clamping structure 3, the support structure 4 comprises an outer box 401, a bracket 403 is installed through the side wall of the bottom end of the outer box 401, a slide plate 402 is fixedly installed at the top of the bracket 403, and the outer box 401 is installed at the bottom end of the bracket 403. A telescopic structure 5 is installed through the inner side of the main shell 1, and a jet frame 7 is fixedly installed at the rear end of the telescopic structure 5. A book clamping structure 3 is installed at the top of the main shell 1, which can clamp the books by air pressure. An air supply pipe 2 is installed at the top of the book clamping structure 3, and the air supply pipe 2 is connected to the external air supply equipment to provide high-pressure gas for the overall equipment. A supporting structure 4 is installed at the bottom of the book clamping structure 3, and the supporting structure 4 can lift the books and the book clamping structure 3 by air pressure. A telescopic structure 5 is installed through the inner side of the main shell 1, and a jet frame 7 is fixedly installed at the rear end of the telescopic structure 5. The jet frame 7 can clean the dust on the blocked bookshelf.

[0038] Specifically, the main shell 1 includes a shell 101, and a dust suction channel 102 opening backward is opened at the lower part of the shell 101. An air suction pipe 6 is installed at the bottom end of the main shell 1. The air suction pipe 6 and the dust suction channel 102 are connected to each other. The shell 101 is combined with the air suction pipe 6 to suck away the blown dust and prevent the dust from escaping.

[0039] Furthermore, an air outlet is provided at the bottom end of the jet frame 7, and a swing plate 9 is rotatably installed at the bottom end of the jet frame 7 through a torsion spring. The gas sprayed from the jet frame 7 can blow the front of the swing plate 9 downward, so that the front end of the swing plate 9 contacts the surface of the bookshelf, guiding the blown air while scraping off the dust on the bookshelf.

[0040] Furthermore, the book clamping structure 3 includes a sliding frame 301, which can ensure that the book clamping structure 3 slides up and down above the main shell 1. Two sleeves 302 are fixedly installed on the left and right sides of the sliding frame 301. The sleeve 302 serves as a mounting carrier. The opening position of the sleeve 302 is screwed with a round hole plug. A spring 303 is fixedly installed on the inner wall of the sleeve 302. The spring 303 is compressed when the telescopic clamp 305 is pushed by air pressure. A telescopic clamp 305 is fixedly installed on the end of the spring 303. The two telescopic clamps 305 are pushed by air pressure to clamp the book between the two. The telescopic clamp 305 penetrates the sliding connection round hole plug, the air supply pipe 2 and the sleeve 302 are connected through the conduction, and the middle part of the front side of the sleeve 302 is penetrated by an air pipe 304, which guides the continuously entering gas to the support structure 4.

[0041] It is worth mentioning that the telescopic clamp 305 includes a single-rod piston and a clamping plate. The single-rod piston is slidably installed on the inner side of the sleeve 302. The piston head of the single-rod piston is located between the end of the air pipe 304 and the end of the air supply pipe 2. The clamping plate is located on the outer side of the sleeve 302. The clamping plate adopts a thin plate structure, which can guide the books vertically when the books fall.

[0042] Embodiment 2:

[0043] A dust removal device for a library, comprising a main shell 1, characterized in that: a book clamping structure 3 is installed at the top of the main shell 1, the book clamping structure 3 comprises two sleeves 302, a round hole plug is installed at the opening position of the sleeve 302 through a threaded connection, a telescopic clamp 305 is slidably installed in the middle of the round hole plug, an air supply pipe 2 is installed at the top of the sleeve 302, a support structure 4 is installed at the bottom of the book clamping structure 3, the support structure 4 comprises an outer box 401, a bracket 403 is installed through the side wall of the bottom end of the outer box 401, and a slide plate 402 is fixedly installed at the top of the bracket 403 A telescopic structure 5 is installed on the inner side of the main shell 1, and a jet frame 7 is fixedly installed on the rear end of the telescopic structure 5. A book clamping structure 3 is installed on the top of the main shell 1, and the books can be clamped by air pressure. An air supply pipe 2 is installed on the top of the book clamping structure 3, and the air supply pipe 2 is connected to the external air supply equipment to provide high-pressure gas for the overall equipment. A supporting structure 4 is installed on the bottom end of the book clamping structure 3, and the supporting structure 4 can lift the books and the book clamping structure 3 by air pressure. A telescopic structure 5 is installed on the inner side of the main shell 1, and a jet frame 7 is fixedly installed on the rear end of the telescopic structure 5, which can clean the dust on the blocked bookshelf.

[0044] It is worth noting that the supporting structure 4 includes an outer box 401, and a bracket 403 is installed through the side wall at the bottom end of the outer box 401. The top of the bracket 403 is located inside the outer box 401, and a slide plate 402 is fixedly installed on the top of the bracket 403. The slide plate 402 can slide downward inside the slide plate 402 by the extrusion of gas, thereby pushing the bracket 403 to extend downward. A corrugated sleeve is fixedly installed at the bottom end of the slide plate 402, and the corrugated sleeve is used for dust prevention. The bottom end of the corrugated sleeve is fixedly connected to the inner wall of the bottom end of the outer box 401, and the top of the outer box 401 and the bottom end of the air pipe 304 are fixedly connected. An outlet pipe 404 is installed through the lower part of the front side wall of the outer box 401, and a manual pressure relief valve is installed on the outlet pipe 404. The manual pressure relief valve can discharge the incoming gas to prevent it from entering the telescopic structure 5.

[0045] Embodiment three:

[0046] A dust removal device for a library, comprising a main shell 1, characterized in that: a book clamping structure 3 is installed at the top of the main shell 1, the book clamping structure 3 comprises two sleeves 302, a round hole plug is installed at the opening position of the sleeve 302 through a threaded connection, a telescopic clamp 305 is slidably installed in the middle of the round hole plug, an air supply pipe 2 is installed at the top of the sleeve 302, a support structure 4 is installed at the bottom of the book clamping structure 3, the support structure 4 comprises an outer box 401, a bracket 403 is installed through the side wall of the bottom end of the outer box 401, a slide plate 402 is fixedly installed on the top of the bracket 403, and a support 403 is installed through the inner side of the main shell 1. A telescopic structure 5 is installed, and a jet frame 7 is fixedly installed at the rear end of the telescopic structure 5. A book clamping structure 3 is installed at the top of the main shell 1, which can clamp the books by air pressure. An air supply pipe 2 is installed at the top of the book clamping structure 3, and the air supply pipe 2 is connected with an external air supply device to provide high-pressure gas for the overall equipment. A supporting structure 4 is installed at the bottom of the book clamping structure 3, and the supporting structure 4 can lift the book and the book clamping structure 3 by air pressure. A telescopic structure 5 is installed through the inner side of the main shell 1, and the telescopic structure 5 can extend the jet frame 7 under the book. A jet frame 7 is fixedly installed at the rear end of the telescopic structure 5, and the jet frame 7 can blow away the dust on the blocked bookshelf.

[0047] In addition, the telescopic structure 5 includes a bellows 501, which is divided into a smooth tube sleeved on the outside and a bellows installed inside the smooth tube. The inner front of the bellows 501 is sealed and slidably plugged with an inner tube 504, and a connecting plate 503 is fixedly installed at the front end of the single-end tube 502. The connecting plate 503 can adjust the position of the connecting plate 503, and the inner rear of the single-end tube 502 is plugged with an inner tube 504. The gas first enters the bellows 501, and the air pressure pushes the inner tube 504 to extend backward until the inner tube 504 and the inner tube 504 are separated. At this time, the gas will pass through the inner tube 504 enters the jet frame 7, the single-mouth tube 502 can control the distance that the inner tube 504 extends backward, so as to adapt to different depths of the bookshelf. The rear outer wall of the inner tube 504 is fixedly connected to the rear end of the corrugated sleeve, and a sealing sleeve 506 is fixedly installed on the front outer wall. The sealing sleeve 506 and the inner wall of the single-mouth tube 502 are sealed and slidably connected. An adjusting nut is rotatably installed in the middle of the connecting plate 503, and a threaded rod 505 is installed through the middle of the adjusting nut. The rear end of the threaded rod 505 is fixedly connected to the front side wall of the shell 101, and the position of the single-mouth tube 502 can be adjusted by the threaded rod 505 and the adjusting nut.

[0048] It must be said that a guide member 8 is slidably installed on the inner side of the shell 101, and the rear end of the guide member 8 is fixedly connected to the front side wall of the jet frame 7. The guide member 8 adopts a spring telescopic rod. After the cleaning is completed, the rebound and contraction of the guide member 8 can drive the jet frame 7 to reset.

[0049] The air supply pipe 2 and the air intake pipe 6 involved in the three embodiments are connected to the external air supply equipment, and the external air supply equipment is composed of an air pump and a filter assembly. The filter assembly is installed at the air inlet of the air pump, the air supply pipe 2 is connected to the air outlet of the air pump, and the air intake pipe 6 is assembled and connected through the filter assembly and the air inlet of the air pump. The filter assembly adopts a replaceable gas filter, and the air pump adopts a high-pressure air pump. Its supporting electronic control system, power supply assembly and pipelines can also be provided by the manufacturer. In addition, the circuits, electronic components and modules involved in the utility model are all existing technologies, which can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and methods.

[0050] Working principle: When in use, the book clamping structure 3 of the device is inserted into a vertically placed book, and the bottom end of the supporting structure 4 is pressed against the front edge of the bookshelf. The external air supply device supplies air to the book clamping structure 3 through the air supply pipe 2. The gas pushes the two telescopic clamps 305 to squeeze toward the middle to clamp the book. When the telescopic clamps 305 are clamped in place, the gas enters the supporting structure 4 from the air pipe 304, pushing the bracket 403 located inside the outer box 401 to extend downward. Because the bottom end of the supporting structure 4 is pressed against the front edge of the bookshelf, the book can be clamped through the extended supporting structure 4 and lifted upward together with the book clamping structure 3 until the slide plate 402 is pushed to the opening position of the air outlet pipe 404 by the air pressure. The gas enters the telescopic structure 5 through the air outlet pipe 404 to inflate the corrugated tube 501, and the corrugated sleeve inside the corrugated tube 501 is extended to make the inner The tube 504 extends backward, thereby driving the jet frame 7 to extend backward from under the lifted book, stretching the spring inside the guide member 8 to store energy, until the sealing sleeve 506 at the front end of the inner tube 504 is pulled out from the middle of the single-mouth tube 502, and the space inside the corrugated tube 501 can be connected with the inner tube 504, and then the gas enters the jet frame 7 and is ejected from its bottom end, and the front end of the blowing swing plate 9 is pressed downward and swung against the surface of the bookshelf 1, and the gas is guided and blown forward, and the dust is blown to the dust suction channel 102 at the bottom of the shell 101, and finally the air containing dust is sucked away through the suction pipe 6 to achieve cleaning, and at the same time, the gas ejected from the jet frame 7 will be continuously supplemented by the external air supply equipment, and the stable internal air pressure can keep the telescopic structure 5, the book clamping structure 3 and the supporting structure 4 in a fixed position, and the books will not fall;

[0051] After cleaning, the external air supply device continues to supply air, and the manual pressure relief valve installed on the air outlet pipe 404 is pressed to discharge the air from the position of the air outlet pipe 404. At the same time, the discharged gas will not exceed the gas entering the device, and the internal air pressure can still keep the book clamping structure 3 and the supporting structure 4 fixed in position, but the gas no longer enters the telescopic structure 5, and the elongated spring inside the guide member 8 rebounds, driving the jet frame 7 to move forward. During this period, the gas inside the single-mouth tube 502 is squeezed and sprayed out from the jet frame 7, and the swing plate 9 is continuously pressed against the surface of the bookshelf 1 to scrape out the dust that has not been blown away, and the cleaning is completed. When the jet frame 7 is completely reset, the air supply of the external air supply device is turned off, and the manual pressure relief valve is continuously pressed to discharge the internal gas. At this time, the telescopic clamp 305 of the book clamping structure 3 rebounds to both sides and guides the books through the plate-like structure. The book falls back on the bookshelf under the action of its own weight, and the cleaning of the bookshelf is completed.

[0052] At the same time, the distance that the single-end tube 502 extends forward can be adjusted to adjust the distance that the inner tube 504 extends backward. When the single-end tube 502 is pulled forward, the rear end opening position of the single-end tube 502 moves forward, and the distance that the inner tube 504 moves backward will be shortened, and vice versa, it will be lengthened, which can adapt to different depths of bookshelves and has strong applicability.

[0053] The device is pneumatically driven, performs continuous actions step by step, and uses its own mechanical structure for sequential control. It does not require external control equipment, has simple and stable drive, low cost, and is easy to operate.

[0054] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A dust removal device for a library, comprising a main housing (1), characterized in that: A book clamping structure (3) is installed at the top of the main shell (1), and the book clamping structure (3) includes two sleeves (302). A round hole plug is installed at the opening position of the sleeve (302) through a threaded connection, and a telescopic clamp (305) is slidably installed in the middle of the round hole plug. An air supply pipe (2) is installed at the top of the sleeve (302). A support structure (4) is installed at the bottom of the book clamping structure (3). The support structure (4) includes an outer box (401), and a bracket (403) is installed through the side wall of the bottom end of the outer box (401). A slide plate (402) is fixedly installed on the top of the bracket (403). A telescopic structure (5) is installed through the inner side of the main shell (1), and an air jet frame (7) is fixedly installed at the rear end of the telescopic structure (5).

2. A dust removal device for a library according to claim 1, characterized in that: The main shell (1) comprises a shell (101), a dust suction channel (102) opening backwards is provided at the lower part of the shell (101), an air suction pipe (6) is installed at the bottom end of the main shell (1), and the air suction pipe (6) and the dust suction channel (102) are connected to each other.

3. A dust removal device for library according to claim 1, characterized in that: An air outlet is arranged at the bottom end of the jet frame (7), and a swing plate (9) is rotatably mounted on the bottom end of the jet frame (7) via a torsion spring.

4. A dust removal device for library according to claim 1, characterized in that: A sliding frame (301) is fixedly installed between the two sleeves (302), a spring (303) is fixedly installed on the inner wall of the sleeve (302), the end of the spring (303) is fixedly connected to a telescopic clamp (305), and an air pipe (304) is installed through the middle of the front side of the sleeve (302).

5. A dust removal device for library according to claim 4, characterized in that: The telescopic clamp (305) comprises a single-rod piston and a clamping plate. The single-rod piston is slidably mounted on the inner side of the sleeve (302). The piston head of the single-rod piston is located between the end of the air pipe (304) and the end of the air supply pipe (2). The clamping plate is located on the outer side of the sleeve (302). The clamping plate adopts a thin plate structure.

6. A dust removal device for library according to claim 1, characterized in that: The top end of the bracket (403) is located inside the outer box (401), a bellows sleeve is fixedly installed at the bottom end of the slide plate (402), the bottom end of the bellows sleeve is fixedly connected to the inner wall of the bottom end of the outer box (401), the top end of the outer box (401) and the bottom end of the air pipe (304) are penetrated and fixedly connected, an air outlet pipe (404) is penetrated and installed at the lower part of the front side wall of the outer box (401), and a manual pressure relief valve is installed on the air outlet pipe (404).

7. A dust removal device for library according to claim 1, characterized in that: The telescopic structure (5) comprises a bellows (501), wherein the bellows (501) is divided into a smooth cylinder sleeved on the outside and a bellows installed inside the smooth cylinder. A single-end cylinder (502) is installed in a sealing and sliding manner at the front inner side of the bellows (501). A connecting plate (503) is fixedly installed at the front end of the single-end cylinder (502). An inner tube (504) is installed in a plug-in manner at the rear inner side of the single-end cylinder (502). The rear outer wall of the inner tube (504) is fixedly connected to the rear end of the bellows sleeve. A sealing sleeve (506) is fixedly installed on the front outer wall. The sealing sleeve (506) and the inner wall of the single-end cylinder (502) are sealingly and slidingly connected. An adjusting nut is rotatably installed in the middle of the connecting plate (503). A threaded rod (505) is installed through the middle of the adjusting nut. The rear end of the threaded rod (505) is fixedly connected to the front side wall of the housing (101).

8. A dust removal device for library according to claim 2, characterized in that: A guide member (8) is slidably inserted and installed inside the housing (101), and the rear end of the guide member (8) is fixedly connected to the front side wall of the jet frame (7), and the guide member (8) adopts a spring telescopic rod.

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