A bookshelf protection system

Abstract

This invention discloses a bookshelf protection system to address the problem that ordinary bookshelves cannot effectively protect against fire or flooding. The system includes a bookshelf and a protective device. One or two sides of the bookshelf are access surfaces, and a water vent is provided at the top of the bookshelf. In the protective device, a roller is rotatably mounted at the bottom of the bookshelf, with its axis horizontally arranged and parallel to the access surfaces. One end of a protective roller shutter is connected to the roller and is wound up to the bottom of the bookshelf. A drive assembly is connected to the other end of the protective roller shutter to drive it to unfold from the bottom of the bookshelf to the top, thus blocking one access surface. A release ring of a release structure is connected to the drive end of the drive assembly to limit its movement. The release structure has a high-temperature sensing part and a water source sensing part, with the water source sensing part located below the water vent. When the high-temperature sensing part is heated or the water source sensing part is exposed to water, the release ring disengages, releasing the restriction on the drive end of the drive assembly.

Description

Technical Field

[0001] This invention relates to the field of cultural heritage and library management equipment, specifically to a bookshelf protection system. Background Technology

[0002] Books, documents, and other paper products stored on bookshelves or in display cases in libraries or museums can be damaged in the event of a sudden fire, a leaky building, or damage to the water supply, heating, or automatic fire extinguishing system pipelines (flooding is more likely than fire).

[0003] Currently, there are no effective measures for protecting bookshelves and display cases from both fire and flooding. Summary of the Invention

[0004] The purpose of this invention is to provide a bookshelf protection system to ensure that bookshelves and display cases can be effectively protected against fire or flood, so as to protect the collection of materials.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a bookshelf protection device, including a bookshelf and a protection device, wherein one or two sides of the bookshelf are access surfaces for storing and retrieving items, and a water passage hole is provided on the top of the bookshelf. Protective devices include: A scroll is rotatably mounted at the bottom of the bookshelf, with its axis horizontally arranged and parallel to the access surface. The protective roller blind is connected to the roller shaft at one end and is rolled up to the bottom of the bookshelf via the roller shaft. A drive assembly, connected to the other end of the protective roller shutter, is used to drive the protective roller shutter to unfold from the bottom of the bookshelf to the top of the bookshelf to block one access side. The tripping structure has a tripping ring connected to the drive end of the drive assembly to limit the movement of the drive end. The tripping structure has a high temperature sensing part and a water source sensing part. The water source sensing part is located below the water inlet. When the high temperature sensing part is heated or the water source sensing part is exposed to water, the tripping ring is tripped, thereby releasing the limit of the tripping ring on the drive end of the drive assembly.

[0006] Optionally, in the above-mentioned bookshelf protection system, the protective roller blind includes an outer protective fabric and an inner protective fabric. The outer protective fabric has multiple inner protective fabrics arranged at intervals along the winding direction connected to the side near the roller. One end of the inner protective fabric is connected to the outer protective fabric, and the other end is a free end. When the protective roller shutter is in the winding state, multiple inner protective fabrics are arranged in a tile-like manner along the unwinding direction of the roller. When the protective roller shutter is in the upward unfolding state, the free ends of the inner protective fabrics fall down, causing multiple inner protective fabrics to be arranged in a tile-like manner along the winding direction of the roller.

[0007] Optionally, in the above-mentioned bookshelf protection system, one end of the inner protective fabric is sewn to the outer protective fabric, and the free end of the inner protective fabric is provided with a counterweight.

[0008] Optionally, in the above bookshelf protection system, the driving component includes: A fixed pulley is installed at the bottom of the top panel of the bookshelf, and the axis of rotation of the fixed pulley is parallel to the axis of the scroll. The drive shaft is rotatably connected to the bottom of the bookshelf, and a scroll wheel is fixed on the drive shaft. The axis of the drive shaft is parallel to the axis of the scroll wheel. The elastic torque-applying component is connected to the drive shaft and is used to drive the drive shaft to rotate. The traction rope is connected at one end to the protective roller shutter fabric, and at the other end passes around the fixed pulley and is connected to the reel. The reel is used to wind the traction rope, and the protective roller shutter fabric is pulled upward by the traction rope. The release ring is connected to a section of the traction rope located between the fixed pulley and the reel, which is used to limit the winding of the traction rope.

[0009] Optionally, in the above-mentioned bookshelf protection system, the elastic torque-applying component is a spring or a torsion spring.

[0010] Optionally, in the above-mentioned bookshelf protection system, two sets of traction ropes and fixed pulleys are provided, located on both sides of the bookshelf respectively. A pull rod is provided at the end of the protective roller shutter away from the roller shaft, and a traction rope is connected to each end of the pull rod. Vertical guide grooves are provided on the two side columns of the bookshelf, and the two ends of the pull rod are guided and moved in cooperation with the vertical guide grooves.

[0011] Optionally, in the above-mentioned bookshelf protection system, the top plate of the bookshelf is provided with a water collection tank, and the bottom of the water collection tank has a water passage hole; And / or, the inner wall of the side panel of the bookshelf is provided with a fireproof and heat-insulating layer.

[0012] Optionally, in the above-mentioned bookshelf protection system, the release mechanism includes: The frame is fixedly connected to the bottom of the top panel of the bookshelf, and the frame is located near the side and access surface of the bookshelf. The first support rod has one end set on the frame and the other end used to connect to the release ring. The sleeve is movably fitted onto the first support rod; A sliding member is slidably connected to the first support rod. One end of the sleeve abuts against the sliding member. The sliding member has a first limiting end and a second limiting end that are respectively located on both sides of the first support rod. The sliding member is used to slide along the axial direction of the first support rod to push the sleeve to drop the release ring. The first elastic element is sleeved on the first support rod, and the two ends of the first elastic element act elastically on the frame and the sliding element respectively, so as to apply an elastic force to the sliding element in the direction of the sleeve. The first sensing component has one end hinged or abutting to the first limiting end, and the other end of the first sensing component abutting or connected to the frame. The first sensing component is used to break at high temperature to release the support and limitation on the first limiting end of the sliding member. The lever structure has its rotation axis located on the frame. The second sensing component has one end connected to one end of the lever structure for tension and limitation, and the other end of the second sensing component is connected to the frame. The other end of the lever structure abuts against the second limiting end for limitation. The second sensing component is used to expand and break when exposed to water, so as to release the tension and limitation on one end of the lever structure. The first sensing component is closer to the outside of the bookshelf than the second sensing component.

[0013] Optionally, in the above-mentioned bookshelf protection system, the first sensing component includes: The first connecting rod is installed on the frame; The second connecting rod is rotatably connected to the first limiting end of the sliding member; A temperature-sensing glass bulb is positioned between the first and second connecting rods, closer to the outside of the bookshelf than the second sensing component. The first sensing component is designed to break upon heating; the second sensing component includes: The third connecting rod is installed on the frame; The fourth connecting rod is rotatably connected to the second limiting end of the sliding member; Water-soluble fibers are placed between the third and fourth connecting rods, and are located below the water passage hole. The water-soluble fibers are designed to break when exposed to water.

[0014] Optionally, in the above-mentioned bookshelf protection system, the bookshelf has two access surfaces that are arranged opposite to each other, and the protective device is provided in two sets, each set of protective devices is used to block and protect one access surface.

[0015] Compared with existing technologies, when the above technical solution is adopted, under normal circumstances where the tripping structure is not triggered, the protective roller shutter is tightly rolled up at the bottom of the bookshelf, without occupying the bookshelf access space or obstructing the access surface, keeping the bookshelf access surface completely open at all times. Staff can freely access books, documents, and other paper collections through the access surface. When a fire occurs around the bookshelf, the ambient temperature rises rapidly in a short time. When the temperature reaches the preset trigger temperature of the high-temperature sensing part of the tripping structure, the tripping structure triggers its tripping action, causing the tripping ring to disengage. This releases the limiting constraint on the drive end of the drive component, activating the drive component and pulling the protective roller shutter. This causes the roller at the bottom of the bookshelf to rotate synchronously and unroll, allowing the protective roller shutter to quickly and smoothly unfold from the bottom of the bookshelf upwards until it completely covers and seals the entire bookshelf access surface, forming a fire barrier and blocking open flames and high-temperature smoke from entering the bookshelf. The internal design prevents paper artifacts from being burned by open flames or damaged by high temperatures. In the event of indoor flooding, water dripping onto the top of the bookshelf is guided through the drainage holes to the water sensor below. When the water sensor comes into contact with the dripping water, the trip mechanism is triggered, releasing the trip ring and releasing the limiting constraint on the drive end of the drive component. The drive component then drives the protective roller shutter to unfold from the bottom of the bookshelf upwards until it reaches a position directly below the drainage holes, completely covering and sealing the entire access surface of the bookshelf, forming a waterproof barrier to prevent external water from entering the bookshelf. At the same time, the upper edge of the protective roller shutter forms a sealed fit with the top of the bookshelf, blocking the drainage holes. This allows dripping water to be diverted outwards from the surface of the protective roller shutter to the outside of the bookshelf, preventing water from directly soaking the paper artifacts inside the bookshelf. This ensures that the bookshelves and display cases are effectively protected against fire or flooding, thus protecting the museum's collection. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a bookshelf protection system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a side panel of a bookshelf protection system provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a fireproof roller shutter fabric for a bookshelf protection system provided in an embodiment of the present invention; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the structure of a protective device for a bookshelf protection system provided in an embodiment of the present invention; Figure 6 for Figure 5 A magnified view of a section at point B in the middle; Figure 7 for Figure 6 A schematic diagram of the tripping mechanism in a high-temperature environment; Figure 8 for Figure 6 A schematic diagram of the tripping mechanism in a humid environment; Figure 9 This is a schematic diagram of the structure of the bottom of a bookshelf in an embodiment of the present invention; Figure 10 This is a schematic diagram of a bookshelf protection system with two sets of protective devices provided in an embodiment of the present invention.

[0017] Figure label: 1-Bookshelf; 11-Drain hole; 12-Vertical guide groove; 13-Water collection tank; 14-Side panel; 15-Fireproof and heat-insulating layer; 2-Roller; 3-Protective roller shutter fabric; 31-Outer protective fabric; 32-Inner protective fabric; 33-Counterweight; 34-Pull rod; 4-Drive assembly; 41-Fixed pulley; 42-Drive shaft; 421-Roller; 43-Elastic torque-applying component; 431-Curling wheel; 432-Shaft; 44-Traction rope; 5-Disengagement structure; 51-Disengagement ring; 52 - Frame; 53 - First support rod; 54 - Sleeve; 55 - Sliding element; 56 - First elastic element; 57 - First sensing element; 571 - First connecting rod; 572 - Second connecting rod; 573 - Temperature sensing bulb; 58 - Second sensing element; 581 - Third connecting rod; 582 - Fourth connecting rod; 583 - Water-soluble fiber; 59 - Lever structure; 510 - Second support rod; 511 - Second elastic element; 512 - First mounting block; 513 - Second mounting block. Detailed Implementation

[0018] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] like Figures 1-8 As shown, an embodiment of the present invention provides a bookshelf protection system, including a bookshelf 1 and a protective device; At least one facade of the bookshelf 1 is a storage surface for storing and retrieving items, and a water vent 11 is provided on the top of the bookshelf 1. The protective device includes: a roller 2, a protective roller blind 3, a drive assembly 4, and a release mechanism 5. The roller 2 is rotatably mounted at the bottom of the bookshelf 1, and the axis of the roller 2 is horizontally arranged and parallel to the storage surface. One end of the protective roller blind 3 is connected to the roller 2, and the protective roller blind 3 is rolled up to the bottom of the bookshelf 1 by the roller 2. The drive assembly 4 is connected to the other end of the protective roller blind 3, and the drive assembly 4 is used for... The protective roller shutter 3 is driven to unfold from the bottom of the bookshelf 1 to the top of the bookshelf 1 to block one side of the access surface; the release ring 51 of the release structure 5 is connected to the drive end of the drive assembly 4 to limit the movement of the drive end of the drive assembly 4. The release structure 5 has a high temperature sensing part and a water source sensing part. The water source sensing part is located below the water hole 11. When the high temperature sensing part is heated or the water source sensing part is exposed to water, the release ring 51 is released to release the restriction of the release ring 51 on the drive end of the drive assembly 4.

[0024] In specific implementation, such as Figure 1As shown, under normal circumstances where the tripping structure 5 is not triggered, the protective roller shutter 3 is tightly rolled up at the bottom of the bookshelf 1 via the roller 2. This does not occupy the effective access space of the bookshelf 1, does not obstruct the access surface, and does not affect the aesthetics, keeping the access surface of the bookshelf 1 completely open. Staff can freely access books, documents, and other paper collections through the access surface. When a fire occurs around the bookshelf 1, the ambient temperature rises rapidly in a short time. When the temperature reaches the preset trigger temperature of the high-temperature sensing part of the tripping structure 5, the tripping structure 5 triggers the tripping action, causing the tripping ring 51 to disengage. This releases the limit constraint on the drive end of the drive component 4, and the drive component 4 starts, pulling the protective roller shutter 3. This causes the roller 2 at the bottom of the bookshelf 1 to rotate synchronously and unroll, allowing the protective roller shutter 3 to quickly and smoothly unfold from the bottom of the bookshelf 1 upwards until it completely covers and seals the entire access surface of the bookshelf 1, forming a fire barrier and preventing the spread of open flames and high-temperature smoke into the interior of the bookshelf 1. To prevent paper collections from being burned by open flames or damaged by high temperatures; in the event of indoor flooding, water dripping onto the top of the bookshelf 1 is guided through the water inlet 11 to the water source sensor below. When the water source sensor comes into contact with the dripping water, the release mechanism 5 triggers the release action, the release ring 51 releases, and the driving end of the drive component 4 is released from the limit constraint. The drive component 4 drives the protective roller shutter 3 to unfold upward from the bottom of the bookshelf 1 until it is pulled up to the position directly below the water inlet 11, until it completely covers and seals the entire access surface of the bookshelf 1, forming a waterproof barrier to prevent external water from entering the bookshelf 1. At the same time, the upper edge of the protective roller shutter 3 forms a sealed fit with the top of the bookshelf 1, blocking the water inlet 11. This allows the dripping water to be tilted outward from the surface of the protective roller shutter 3 and guided to the outside of the bookshelf 1, preventing water from directly soaking the paper collections inside the bookshelf 1. This ensures that the bookshelf 1 and display case can be effectively protected against fire or indoor flooding, thus protecting the collection materials.

[0025] It should be noted that the bookshelf protection system is applied to bookshelves or cultural relic shelves, and is not limited to the types listed in this embodiment. It can be used as long as it meets the needs of displaying books, cultural relics, exhibits, or storing and placing paper items.

[0026] like Figure 3 and Figure 4 As shown, in some embodiments, the protective roller blind 3 includes an outer protective fabric 31 and an inner protective fabric 32. The outer protective fabric 31 is connected to a plurality of inner protective fabrics 32 arranged at intervals along the winding direction on the side near the roller 2. One end of the inner protective fabric 32 is connected to the outer protective fabric 31, and the other end is a free end. When the protective roller blind 3 is in the winding state, the plurality of inner protective fabrics 32 are arranged in a tile-like manner along the unwinding direction of the roller 2. When the protective roller blind 3 is in the upward unfolding state, the free end of the inner protective fabric 32 falls down, so that the plurality of inner protective fabrics 32 are arranged in a tile-like manner along the winding direction of the roller 2.

[0027] During operation, under normal conditions where the tripping mechanism 5 is not triggered, the multiple layers of inner protective fabric 32 of the protective roller shutter 3 are arranged in a overlapping manner along the unwinding direction and rolled onto the roller 2 at the bottom of the bookshelf 1. In the event of a fire or indoor flooding, as the protective roller shutter 3 unfolds from the bottom upwards, the free ends of each inner protective fabric 32 fall naturally under their own weight, causing the multiple layers of inner protective fabric 32 to re-form an overlapping arrangement along the winding direction of the roller 2, so that adjacent inner protective fabric 32 and outer protective fabric 31 are connected. An air barrier zone is formed between the two layers of protective fabric. In the event of high temperatures, the air barrier zone uses still air as a natural heat insulation medium. Utilizing the low thermal conductivity of air, it can block external heat from being conducted into the bookshelf 1 and prevent open flames and high-temperature smoke from directly spreading into the bookshelf 1, thereby improving the fireproof and heat insulation performance of the protective roller shutter 3. In the event of indoor flooding, the double protection of the outer and inner protective fabrics improves the fireproof, heat insulation, and waterproof performance of the protective roller shutter 3, ensuring the reliability and safety of protecting the collections inside the bookshelf 1.

[0028] It should be noted that the protective roller shutter 3 can be made of inorganic cloth, fiberglass cloth with a waterproof coating or other materials with fireproof and waterproof functions, as long as the protective roller shutter 3 can block high temperature and water from entering the bookshelf 1 after it is pulled up.

[0029] like Figure 3 and Figure 4 As shown, in this embodiment, one end of the inner protective fabric 32 is sewn to the outer protective fabric 31, and a counterweight 33 is provided at the free end of the inner protective fabric 32. With this configuration, when the protective roller blind 3 is unfolded upward, the counterweight 33 uses its own weight to drive the free end of the inner protective fabric 32 to quickly droop down and tightly overlap with the outer surface of the adjacent inner protective fabric 32 on the side near the bookshelf 1. This makes the formed air barrier area stable and sealed, avoiding the risk of the inner protective fabric 32 fluttering, curling, or gaps due to poor overlap, and further improving the fireproof, heat-insulating, and waterproof performance of the protective roller blind 3.

[0030] In some embodiments, the counterweight 33 consists of a plurality of intermittently arranged short metal rods extending along an axial direction parallel to the roller spool 2. This arrangement allows the free end of the inner protective fabric 32 to have a downward driving force while reducing the concentrated weight of the protective roller blind 3 in certain areas.

[0031] In other embodiments, the counterweight 33 is a continuous metal wire extending along a direction parallel to the axis of the roller 2. This arrangement ensures that the free end of the inner protective fabric 32 has a continuous and uniform downward pull, guaranteeing that the upper inner protective fabric 32 can be tightly fitted with the adjacent lower inner protective fabric 32, reducing the risk of localized curling and overlap gaps, further enhancing the airtightness of the air barrier zone, and improving the fireproof, heat-insulating, and waterproof performance of the protective roller shutter fabric 3.

[0032] like Figure 5 As shown, in this embodiment, the drive assembly 4 includes: a fixed pulley 41, a drive shaft 42, an elastic torque-applying force member 43, and a traction rope 44. The fixed pulley 41 is located at the bottom of the top plate of the bookshelf 1, and the rotation axis of the fixed pulley 41 is parallel to the axis of the roller 2. The drive shaft 42 is rotatably connected to the bottom of the bookshelf 1, and a roller 421 is fixed on the drive shaft 42. The axis of the drive shaft 42 is parallel to the axis of the roller 2. The elastic torque-applying force member 43 is drivenly connected to the drive shaft 42 and is used to drive the drive shaft 42 to rotate. One end of the traction rope 44 is connected to the protective roller blind 3, and the other end passes around the fixed pulley 41 and is connected to the roller 421. The roller 421 is used to wind the traction rope 44. The protective roller blind 3 is pulled upward by the traction rope 44. The release ring 51 is connected to a section of the traction rope 44 located between the fixed pulley 41 and the roller 421 to limit the winding of the traction rope 44.

[0033] During operation, under normal conditions where the tripping structure 5 is not triggered, the tripping ring 51 pulls the traction rope 44 between the fixed pulley 41 and the winding reel 421 to form a limiting constraint, maintaining the energy storage state of the elastic torsion force component 43. The drive shaft 42 does not rotate, and the protective roller shutter 3 is rolled up at the bottom of the bookshelf 1. In the event of a fire or indoor flooding, the tripping structure 5 is triggered, and after the tripping ring 51 is released, the limiting constraint on the traction rope 44 is lifted. The elastic torsion force component 43 releases its elastic potential energy, driving the drive shaft 42 to rotate. The drive pulley 421 moves synchronously to wind up the traction rope 44 and the release ring 51 connected to the traction rope 44. The traction rope 44 pulls the protective roller curtain 3 upward to move smoothly and unfold, and passes around the fixed pulley 41 to complete the reversal. Compared with the complex transmission structure, this application adopts a combined mechanical structure of fixed pulley 41 reversal, traction rope 44 pulling and release structure 5 release. It can be sensitively triggered in extreme cases of fire or indoor flooding, without the need for electric drive. The drive component 4 can respond in a timely and reliable manner, ensuring the reliability and stability of the bookshelf protection system.

[0034] It should be noted that the release ring 51 can be made of the same material as the traction rope 44, such as steel wire rope, and can be easily wound up together with the traction rope 44, as long as it can be suspended on the release structure 5 through the ring structure and can be released.

[0035] In some possible implementations, the elastic torsion force component 43 is a spring or a torsion spring. With this configuration, under normal conditions where the tripping structure 5 is not triggered, the spring or torsion spring is in an energy-storing state. When the tripping structure 5 is released, the spring or torsion spring releases its elastic potential energy, driving the drive shaft 42 to rotate the winding wheel 421. This, in turn, pulls the protective roller shutter 3 vertically upwards from the bottom of the bookshelf 1 via the traction rope 44. Compared to the traditional method of relying on an external power supply and electrical control circuit to drive the roller shutter, using a spring or torsion spring as the elastic torsion force component 43 relies entirely on mechanical energy storage for drive. This allows for stable operation even in extreme situations such as power outages due to fire, burnt wiring, or indoor flooding, improving the reliability and stability of the bookshelf protection system. The spring can be a constant-force spring, which includes two winding wheels 431 and a rotating shaft 432, such as... Figure 9 As shown, the two ends of the rotating shaft 432 are rotatably connected to the bottom of the bookshelf 1 and arranged parallel to the drive shaft 42. Two spring wheels 431 are respectively set on the rotating shaft 432 and the drive shaft 42, and a spring is wound on both spring wheels 431 at the same time. The winding direction of the spring on the two spring wheels 431 is opposite, so as to achieve constant torque release. After the triggering mechanism is activated, the protective roller shutter 3 can be rapidly unfolded at a constant speed under the action of the constant force spring. Of course, the spring can also be an ordinary spring.

[0036] like Figure 10 As shown, in this embodiment, two sets of traction ropes 44 and fixed pulleys 41 are provided, located on both sides of the bookshelf 1 respectively. A pull rod 34 is provided at the end of the protective roller blind 3 away from the roller shaft 2, and a traction rope 44 is connected to each end of the pull rod 34. Vertical guide grooves 12 are provided on the two side columns of the bookshelf 1. The two ends of the pull rod 34 are guided and moved in cooperation with the vertical guide grooves 12. The two side edges of the protective roller blind 3 are hidden in the vertical guide grooves 12. With this configuration, two sets of traction ropes 44 and fixed pulleys 41 are symmetrically arranged on both sides of the bookshelf 1. By synchronously tractioning both ends of the pull rod 34, the pull rod 34 on the protective roller shutter 3 is driven to move relatively smoothly upward along the direction of the vertical guide groove 12, so that the axis of the pull rod 34 is always parallel to the axis of the roller 2 during the movement, and the traction force of the pull rod 34 is uniform, avoiding the phenomenon of deviation, jamming or tilting during the raising and lowering of the protective roller shutter 3. This reduces the wear of the traction ropes 44 and the pull rod 34, extends the service life of each component, improves the operational stability and smoothness of the protective roller shutter 3, and further improves the reliability and stability of the opening and closing of the bookshelf protection system. The edge of the protective roller shutter 3 is always located within the vertical guide groove 12 during the pulling process and unfolds along the vertical guide groove 12, reducing the gap between the protective roller shutter 3 and the bookshelf 1, and further improving the fireproof, heat insulation and waterproof performance of the protective roller shutter 3.

[0037] In other embodiments, the pull rod 34 includes a fire-resistant expansion sealing strip, which expands at high temperatures to seal the gap between the protective roller shutter 3 and the bottom of the top plate of the bookshelf 1. With this configuration, when a fire occurs and a high-temperature environment arises, the traction rope 44 drives the pull rod 34 to pull the protective roller shutter 3 from the bottom of the bookshelf 1 upwards to below the top plate of the bookshelf 1. At this time, the fire-resistant expansion sealing strip rapidly expands in volume due to heat, tightly filling and sealing the gap between the protective roller shutter 3 and the bottom of the top plate of the bookshelf 1, preventing smoke, open flames, and heat from entering the interior of the bookshelf 1 through the gap. This further works with the protective roller shutter 3 to form a tightly sealed protective space, improving the fireproof and smoke-proof effect of the bookshelf protection system. Among them, the fire-resistant expansion sealing strip is made of graphite-based fire-resistant expansion strip, rubber expansion sealing strip, silicone fire-resistant expansion sealing strip, fire-expanding composite sealing strip, or other fire-expanding materials. Of course, the fire-resistant expansion sealing strip is not limited to the types listed in this embodiment. As long as the fire-resistant expansion sealing strip can expand in volume under high temperature, it can reliably seal the gap between the protective roller shutter 3 and the top plate of the bookshelf 1, thereby reducing the risk of damage to the internal collections of the bookshelf 1 by high temperature and smoke, and further improving the sealing performance and safety reliability of the bookshelf protection system.

[0038] like Figure 1 As shown, in some embodiments, the top plate of the bookshelf 1 is provided with a water collection trough 13, and a water passage hole 11 is opened at the bottom of the water collection trough 13. With this configuration, when indoor flooding occurs, the water dripping onto the top plate of the bookshelf 1 first flows into the water collection trough 13, and then is directed downward by the water passage hole 11 at the bottom of the water collection trough 13, so that the water flow accurately falls to the water source sensing part of the tripping structure 5. The water collection trough 13 completes the collection and directional flow of water leaking from the top plate, reducing the risk of water spreading around the surface of the top plate of the bookshelf 1 and seeping into the interior of the bookshelf 1. At the same time, it can ensure that the tripping structure 5 can quickly and accurately sense and trigger the action in time when indoor flooding occurs, further improving the sensitivity and reliability of the tripping structure 5 in triggering indoor flood protection.

[0039] like Figure 2 As shown, in some embodiments, a fireproof and heat-insulating layer 15 is provided on the inner wall of the side panel 14 of the bookshelf 1. This arrangement, with the fireproof and heat-insulating layer 15 attached to the inner surface of the side panel 14, allows the protective roller shutter 3 to be unfolded to seal the access surface. The fireproof and heat-insulating layer 15 on the inner wall of the side panel 14 and the protective roller shutter 3 work together to form a closed protective space inside the bookshelf 1, further enhancing the overall fire resistance of the bookshelf 1, blocking heat conduction through the side panel 14 to the internal collections, reducing the risk of damage from high-temperature baking, and improving the protective effect of the bookshelf protection system. Furthermore, the fireproof and heat-insulating layer 15, being located on the inner wall of the side panel 14, does not occupy the internal storage space of the bookshelf 1 and does not affect the normal access to books and documents on the bookshelf 1. For example, the fireproof and heat-insulating layer 15 can be fireproof cotton.

[0040] like Figure 6 As shown, in this embodiment, the release structure 5 includes: a frame 52, a first support rod 53, a sleeve 54, a sliding member 55, a first elastic member 56, a first sensing component 57, a second sensing component 58, and a lever structure 59. The frame 52 is fixedly connected to the bottom of the top plate of the bookshelf 1, and the frame 52 is located near the side and access surface of the bookshelf 1. One end of the first support rod 53 is located on the frame 52, and the other end of the first support rod 53 is used to sleeve the release ring 51. The sleeve 54 is movably sleeved on the first support rod 53. The sliding member 55 is slidably connected to the first support rod 53, and one end of the sleeve 54 abuts against the sliding member 55. The sliding member 55 has a first limiting end and a second limiting end that are relatively arranged and located on both sides of the first support rod 53. The sliding member 55 is used to slide along the axial direction of the first support rod 53 to push the sleeve 54 to push the release ring 51 down. The first elastic member 56 is sleeved on the first support rod 53. On the support rod 53, the two ends of the first elastic member 56 elastically act on the frame 52 and the sliding member 55 respectively, to apply an elastic force to the sliding member 55 in the direction of the sleeve 54; one end of the first sensing component 57 is hinged or abutted to the first limiting end, and the other end of the first sensing component 57 abuts or is connected to the frame 52. The first sensing component 57 is used to break at high temperature to release the support and limitation on the first limiting end of the sliding member 55; the rotation shaft of the lever structure 59 is set on the frame 52; one end of the second sensing component 58 is pulled and limited by one end of the lever structure 59, and the other end of the second sensing component 58 is connected to the frame 52. The other end of the lever structure 59 abuts and limits the second sensing component 58. The second sensing component 58 is used to expand and break after encountering water to release the pull and limitation on one end of the lever structure 59; the first sensing component 57 is closer to the outside of the bookshelf 1 than the second sensing component 58.

[0041] During operation, under normal conditions when the tripping structure 5 is not triggered, the tripping ring 51 is sleeved on one end of the first support rod 53, the sleeve 54 is in the non-protruding position, the first elastic element 56 is in a compressed state, and the axial thrust exerted by the first elastic element 56 on the sliding element 55 is always present. This elastic thrust is balanced and offset by the support limit of the first sensing component 57 and the abutment limit of the lever structure 59, keeping the sliding element 55 in a state of force equilibrium. At this time, the tripping ring 51 engages with the traction rope 44 near the fixed pulley 41 and the drive shaft 42. The first sensing element 57 is pulled and limited to ensure that the elastic torsional force component 43 is in an energy storage state. When a fire occurs around the bookshelf 1 and the ambient temperature rises, the first sensing element 57 breaks due to high temperature, releasing the support and limitation of the first sensing element 57 on the first limiting end of the sliding element 55. The second sensing element 58 remains intact and continues to pull and limit one end of the lever structure 59. Then, the other end of the lever structure 59 abuts and limits the second limiting end of the sliding element 55. The first elastic element 56 elastically resets from the compressed state and applies a pushing sleeve 54 to the sliding element 55. The elastic force moving along the axial direction of the first support rod 53 causes the sliding member 55 to slide axially along the first support rod 53 due to unbalanced force, pushing the sleeve 54 to move and push the release ring 51 off the first support rod 53. Since the release ring 51 is connected to the traction rope 44 of the drive assembly 4, after the release ring 51 is released, it releases the tension limit on the traction rope 44, completing the activation action of the protective device. When indoor flooding occurs, water droplets fall onto the second sensing component 58, causing the second sensing component 58 to expand and break upon contact with water, causing the lever structure 59 to move towards the end near the second sensing component 58. When the pulling force fails, the lever structure 59 rotates around the rotation axis, releasing the abutment limit on the second limiting end of the sliding member 55. At this time, the first sensing component 57 remains intact, and only the first sensing component 57 limits the first limiting end. The first elastic member 56 elastically resets from the compressed state and applies a spring force to the sliding member 55 to push the sleeve 54 to move axially along the first support rod 53, causing the sliding member 55 to slide axially along the first support rod 53 due to unbalanced force. This pushes the sleeve 54 to move and push the release ring 51 off the first support rod 53, completing the activation action of the protective device. Compared to traditional protective devices that rely on external power and control circuits for activation, this application does not require external power for activation. Instead, it relies on temperature sensing by the high-temperature sensing unit and water sensing by the water source sensing unit. The tripping structure 5 automatically and reliably trips to release the drive end constraint of the drive component 4, triggering the mechanical drive of the protective roller shutter 3 to pull up for protection. This avoids the risk of failure of the protective roller shutter 3 in either extreme case of fire or indoor flooding, ensuring the reliability and safety of the protection of books, documents, and other paper products stored in bookshelves 1 and display cases in libraries or cultural and museum venues.

[0042] like Figure 6As shown, in this embodiment, the first sensing component 57 includes: a first connecting rod 571, a second connecting rod 572, and a temperature-sensing glass bulb 573. The first connecting rod 571 is disposed on the frame 52; the second connecting rod 572 is rotatably connected to the first limiting end of the sliding member 55; the temperature-sensing glass bulb 573 is disposed between the first connecting rod 571 and the second connecting rod 572, and the temperature-sensing glass bulb 573 is closer to the outside of the bookshelf 1 than the second sensing component 58. The first sensing component 57 is used to break when heated. The second sensing component 58 includes: a third connecting rod 581, a fourth connecting rod 582, and a water-soluble fiber 583. The third connecting rod 581 is disposed on the frame 52; the fourth connecting rod 582 is rotatably connected to the second limiting end of the sliding member 55; the water-soluble fiber 583 is disposed between the third connecting rod 581 and the fourth connecting rod 582, and the water-soluble fiber 583 is located below the water hole 11. The water-soluble fiber 583 is used to break when exposed to water.

[0043] During operation, when the ambient temperature around the bookshelf 1 rises due to a fire, the internal medium of the heat-sensing glass bulb 573 expands due to heat, and the internal pressure continues to increase. When the temperature reaches the preset trigger temperature, the heat-sensing glass bulb 573 expands and ruptures, causing the support connection between the first connecting rod 571 and the second connecting rod 572 to fail. The first connecting rod 571 and the second connecting rod 572 disconnect from each other, releasing the support limit on the first limiting end. Only the second sensing component 58 limits the second limiting end. The sliding member 55 is unbalanced in force and slides along the axial direction of the first support rod 53, pushing the sleeve 54. The movement of the sleeve 54 pushes the release ring 51 off the first support rod 53, completing the release action, thereby releasing the pull limit on the traction rope 44, and triggering the activation of the protective device, pulling the protective roller shutter 3 upward. When indoor water occurs... When water drips from the environment onto the top of the bookshelf 1, it flows through the water hole 11 to the water-soluble fiber 583. The water-soluble fiber 583 gradually dissolves and its strength decreases when it comes into contact with water. When the degree of dissolution of the water-soluble fiber 583 reaches a critical state, it breaks, causing the tension connection between the third connecting rod 581 and the fourth connecting rod 582 to fail. The third connecting rod 581 and the fourth connecting rod 582 are disconnected from each other, releasing the tension limit on the second limiting end. Only the first sensing component 57 limits the first limiting end. The sliding component 55 is unbalanced in force and slides along the axial direction of the first support rod 53, pushing the sleeve 54. The movement of the sleeve 54 pushes the release ring 51 off the first support rod 53, completing the release action, thereby releasing the tension limit on the traction rope 44, and triggering the protective device to start, pulling the protective roller shutter 3 upward. Among them, the temperature-sensing glass bulb 573 breaks when heated, and the water-soluble fiber 583 breaks when dissolved in water. Neither requires a complex circuit or power supply structure, and there is no problem of aging failure. It is triggered only by physical and mechanical means, which improves the reliability and stability of the tripping structure 5.

[0044] Specifically, the medium inside the temperature-sensing glass bulb 573 can be a heat-sensitive liquid, an expanding gas, or other materials that can expand when exposed to high temperatures. Of course, it is not limited to the types listed in this embodiment, as long as the medium inside the temperature-sensing glass bulb 573 can expand when heated at a set temperature and reliably rupture the glass bulb to disconnect the connection between the first connecting rod 571 and the second connecting rod 572. The water-soluble fiber 583 can be water-soluble cotton fiber, water-soluble polyester fiber, or other fiber materials that can dissolve and break when exposed to water. Of course, it is not limited to the types listed in this embodiment, as long as the water-soluble fiber 583 can reliably dissolve and break when exposed to water to disconnect the connection between the third connecting rod 581 and the fourth connecting rod 582.

[0045] like Figures 6-8 As shown, the release structure 5 further includes: a second support rod 510, a second elastic element 511, a first mounting block 512, and a second mounting block 513. The second support rod 510 is disposed on the frame 52 and is slidably connected to the sliding element 55. The second elastic element 511 is sleeved on the second support rod 510, and the two ends of the second elastic element 511 elastically act on the frame 52 and the sliding element 55 respectively, for applying an elastic force to the sliding element 55 in the direction of the sleeve 54. Two sets of the second support rod 510 and the second elastic element 511 are provided and are respectively disposed on both sides of the first support rod 53. The first mounting block 512 is disposed on the side of the frame 52 where the first sensing component 57 is disposed. The second mounting block 513 is disposed on the side of the frame 52 where the second sensing component 58 is disposed. Both the first mounting block 512 and the second mounting block 513 are used to fix the frame 52 to the bottom of the top plate of the bookshelf 1.

[0046] During operation, the operator uses mounting screws to install and fix the first mounting block 512 and the second mounting block 513 to the bottom of the top plate of the bookshelf 1, completing the overall installation and fixation of the release structure 5. If either the first sensing component 57 or the second sensing component 58 breaks, the sliding member 55 will experience an imbalance of force on the first support rod 53. At this time, both the first elastic component 56 and the second elastic component 511 apply elastic forces to the sliding member 55, causing the sliding member 55 to slide along the axial direction of the first support rod 53, pushing the sleeve 54 to move. During this movement, the sliding member... The moving part 55 is limited by the second support rod 510, and the two sets of second support rods 510 and second elastic members 511 respectively set on both sides of the first support rod 53 make the force at the sliding part 55 more uniform and the movement of the sliding part 5541 more balanced. The sliding part 55 can only move relatively smoothly along the axis of the first support rod 53 to push the release ring 51 off the first support rod 53, and will not rotate relative to the axis of the first support rod 53 during the movement, thus ensuring the stability and reliability of the release structure 5.

[0047] Specifically, the first mounting block 512 and the second mounting block 513 can be rectangular protrusions, cylindrical protrusions, or protrusions of other shapes, as long as the first mounting block 512 and the second mounting block 513 can be fixedly installed in correspondence with the bookshelf 1.

[0048] Of course, in some embodiments, the second support rod 510 and the second elastic member 511 may not be provided. When the release structure 5 is installed at the bottom of the top plate of the bookshelf 1, the bottom of the top plate and the frame 52 of the release structure 5 together restrict the sliding member 55 from rotating around the axis of the first support rod 53. As long as the sliding member 55 can move smoothly along the axial direction of the first support rod 53 without rotating around the axis of the first support rod 53, it is acceptable.

[0049] like Figures 6-8 As shown, in this embodiment, the sliding member 55 is a sliding plate or a sliding rod, and the sliding plate or sliding rod is provided with a strip-shaped hole for the first support rod 53 and the second support rod 510 to pass through. With this configuration, when the sliding member 55 is a sliding plate, the plate-like structure can increase the contact area between the sliding member 55 and the first elastic member 56 and the second elastic member 511, making the force on the sliding member 55 more uniform during sliding and ensuring that the sliding plate slides smoothly along the axial direction of the first support rod 53. When the sliding member 55 is a sliding rod, the rod-like structure can reduce the contact friction resistance during sliding and reduce the driving force required for the sliding member 55 to slide. Through the cooperation of the strip-shaped hole with the first support rod 53 and the second support rod 510, it avoids jamming between the sliding plate or sliding rod and the first support rod 53 and the second support rod 510 due to the sliding plate or sliding rod deviating towards the end where the limit is released during movement, thus improving the stability and reliability of the release structure 5's sliding trigger to complete the release action of the release ring 51.

[0050] like Figure 10 As shown, in some embodiments, the bookshelf 1 has two access surfaces arranged opposite each other, and two sets of protective devices are provided, each set of protective devices being used to block and protect one access surface. With this arrangement, when the bookshelf 1 has access surfaces on both opposite sides, independent protective devices are configured accordingly. Each set of protective devices blocks and protects one access surface, so that in the event of a localized fire or indoor flooding, the two sets of protective devices operate independently. The tripping structure 5 of each set can be triggered individually for the corresponding fire or indoor flooded area, driving the corresponding protective roller shutter 3 to unfold upwards without affecting each other, thus sealing and blocking the access surface on that side. This meets the protection requirements of the double-sided open bookshelf 1, preventing the risk of high temperatures, smoke, and water entering the bookshelf 1 from any access surface, and expanding the applicability and versatility of the bookshelf protection system.

[0051] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A bookshelf protection system, characterized in that, Includes a bookshelf and a protective device, wherein one or two sides of the bookshelf are access surfaces for storing and retrieving items, and the top of the bookshelf is provided with a water passage hole; The protective device includes: A scroll is rotatably mounted at the bottom of the bookshelf, with the axis of the scroll arranged horizontally and parallel to the access surface; A protective roller blind is connected at one end to the roller shaft, and the protective roller blind is rolled up to the bottom of the bookshelf via the roller shaft. A drive assembly is connected to the other end of the protective roller shutter, the drive assembly being used to drive the protective roller shutter to unfold upwards from the bottom of the bookshelf to the top of the bookshelf, so as to block one side of the access surface; The tripping structure has a tripping ring connected to the drive end of the drive assembly to limit the movement of the drive end. The tripping structure has a high-temperature sensing part and a water source sensing part. The water source sensing part is located below the water inlet. When the high-temperature sensing part is heated or the water source sensing part is exposed to water, the tripping ring is tripped, thereby releasing the limitation of the tripping ring on the drive end of the drive assembly.

2. The bookshelf protection system according to claim 1, characterized in that, The protective roller blind fabric includes an outer protective fabric and an inner protective fabric. The outer protective fabric has a plurality of inner protective fabrics arranged at intervals along the winding direction connected to the side of the outer protective fabric near the roller shaft. One end of the inner protective fabric is connected to the outer protective fabric, and the other end is a free end. When the protective roller blind is in the winding state, the multiple inner protective fabrics are arranged in a stacked manner along the unwinding direction of the roller. When the protective roller blind is in the upward unfolding state, the free ends of the inner protective fabrics fall down, so that the multiple inner protective fabrics are arranged in a stacked manner along the winding direction of the roller.

3. The bookshelf protection system according to claim 2, characterized in that, One end of the inner protective fabric is sewn to the outer protective fabric, and a counterweight is provided at the free end of the inner protective fabric.

4. The bookshelf protection system according to claim 1, characterized in that, The driving component includes: A fixed pulley is provided at the bottom of the top plate of the bookshelf, and the axis of rotation of the fixed pulley is parallel to the axis of the scroll. A drive shaft is rotatably connected to the bottom of the bookshelf, and a scroll wheel is fixed on the drive shaft. The axis of the drive shaft is parallel to the axis of the scroll wheel. An elastic torque-applying component is driven to the drive shaft and is used to drive the drive shaft to rotate. The traction rope has one end connected to the protective roller shutter fabric, and the other end passes around the fixed pulley and is connected to the roller. The roller is used to wind the traction rope, and the protective roller shutter fabric is pulled upward by the traction rope. The release ring is connected to a section of the traction rope located between the fixed pulley and the roller, and is used to restrict the winding of the traction rope.

5. The bookshelf protection system according to claim 4, characterized in that, The elastic torque-applying component is a spring or a torsion spring.

6. The bookshelf protection system according to claim 4, characterized in that, Two sets of traction ropes and fixed pulleys are provided, located on both sides of the bookshelf. A pull rod is provided at the end of the protective roller shutter away from the roller shaft, and each end of the pull rod is connected to a traction rope. Vertical guide grooves are provided on the two side columns of the bookshelf, and the two ends of the pull rod are guided and moved in cooperation with the vertical guide grooves.

7. The bookshelf protection system according to claim 1, characterized in that, The top plate of the bookshelf is provided with a water collection tank, and the bottom of the water collection tank has the water passage hole. And / or, the inner wall of the side panel of the bookshelf is provided with a fireproof and heat-insulating layer.

8. The bookshelf protection system according to claim 1, characterized in that, The tripping structure includes: The frame is fixedly connected to the bottom of the top plate of the bookshelf, and the frame is located near the side of the bookshelf and the access surface; The first support rod has one end set on the frame, and the other end of the first support rod is used to connect to the release ring; The sleeve is movably fitted onto the first support rod; A sliding member is slidably connected to the first support rod. One end of the sleeve abuts against the sliding member. The sliding member has a first limiting end and a second limiting end that are oppositely arranged and located on both sides of the first support rod. The sliding member is used to slide along the axial direction of the first support rod to push the sleeve to push down the release ring. The first elastic element is sleeved on the first support rod, and the two ends of the first elastic element elastically act on the frame and the sliding element respectively, for applying an elastic force to the sliding element in the direction of the sleeve; The first sensing component has one end hinged or abutting to the first limiting end, and the other end of the first sensing component abutting or connected to the frame. The first sensing component is used to break at high temperature to release the support and limitation on the first limiting end of the sliding member. A lever structure, wherein the rotation axis of the lever structure is disposed on the frame; The second sensing component has one end connected to one end of the lever structure for tension and limitation, and the other end of the second sensing component is connected to the frame. The other end of the lever structure abuts against and limits the second limiting end. The second sensing component is used to expand and break when exposed to water, so as to release the tension and limitation on one end of the lever structure. The first sensing component is closer to the outside of the bookshelf than the second sensing component.

9. The bookshelf protection system according to claim 8, characterized in that, The first sensing component includes: The first connecting rod is disposed on the frame; The second connecting rod is rotatably connected to the first limiting end of the sliding member; A temperature-sensing glass bulb is disposed between the first connecting rod and the second connecting rod. The temperature-sensing glass bulb is closer to the outside of the bookshelf than the second sensing component. The first sensing component is designed to break upon heating. The second sensing component includes: The third connecting rod is installed on the frame; The fourth connecting rod is rotatably connected to the second limiting end of the sliding member; A water-soluble fiber is disposed between the third connecting rod and the fourth connecting rod, and the water-soluble fiber is located below the water passage hole. The water-soluble fiber is designed to break upon contact with water.

10. The bookshelf protection system according to claim 1, characterized in that, The bookshelf has two access surfaces arranged opposite to each other, and the protective device is provided in two sets, each set of the protective device being used to block and protect one access surface.

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