Earthquake protection device capable of being additionally arranged on household bed body

Abstract

The invention provides an earthquake protection device with a household bed body capable of being additionally installed, and relates to the technical field of earthquake protection devices. The bed comprises a box body unit, a telescopic supporting unit, a protection unit and a driving unit, the box body unit is detachably connected with a bed body and located on the head portion, the tail portion, the bottom, the left side and the right side of the bed body, and the telescopic supporting unit, the protection unit and the driving unit are all arranged in the box body unit; the telescopic supporting units are located on the left side and the right side of the bed body and can adjust the relative distance between the top and the bottom of the telescopic supporting units, and the protection unit is in driving connection with the driving unit and is movably connected with the telescopic supporting units. The driving unit can drive the protection unit to move relative to the telescopic supporting unit and is converted into the unfolded state from the folded state. The protection device can form a modularized additional structure system, a user only needs to additionally install the protection device on the bed body, the whole set of bed body does not need to be purchased again, cost is saved, and lossless additional installation and transformation of a common household bed body are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of earthquake protection devices, and in particular to an earthquake protection device that can be retrofitted onto a household bed. Background Art

[0002] Existing earthquake protection devices generally adopt the form of overall building reinforcement or independent shelters, which have problems such as high renovation cost, large space occupation, and slow response speed.

[0003] To address this issue, some bed protection devices have appeared on the market. However, the existing bed protection devices cannot be installed on ordinary beds. Users can only purchase a whole set of beds again, which increases costs. In addition, the existing bed protection devices have a relatively complex structure and cannot be stored, which affects daily use and has a low level of intelligence. Summary of the Invention

[0004] The present invention aims to provide a retrofittable earthquake protection device for household beds to solve the technical problems existing in the prior art. The various technical effects that can be achieved by the preferred technical solution among the various technical solutions provided by the present invention are described in detail below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A household bed-installable earthquake protection device comprises a box unit, a telescopic support unit, a protection unit and a drive unit, wherein the box unit is detachably connected to the bed and is located at the head, tail, bottom, left and right sides of the bed, the telescopic support unit, the protection unit and the drive unit are all arranged in the box unit, the telescopic support unit is located at the left and right sides of the bed and the telescopic support unit is capable of adjusting the relative distance between its top and bottom, the protection unit is drive-connected to the drive unit and movably connected to the telescopic support unit, the drive unit is capable of driving the protection unit to move relative to the telescopic support unit and to convert from a stored state to an expanded state, and the protection unit can cover the head, tail, bottom and top of the bed when in the expanded state, and can cover the left and right sides of the bed when in the expanded state and can raise the height of the top of the protection unit.

[0007] Preferably, the box unit includes a head box connected to the head of the bed, a foot box connected to the tail of the bed, a front bed bottom box connected to the front end of the bottom of the bed, a rear bed bottom box connected to the rear end of the bottom of the bed, a front bed left box connected to the left side of the front of the bed, a front bed right box connected to the right side of the front of the bed, a rear bed left box connected to the left side of the rear of the bed, and a rear bed right box connected to the right side of the rear of the bed. The number of the telescopic support units is four, which are respectively located in the front bed left box, the front bed right box, the rear bed left box and the rear bed right box. The number of the protective units is two, one of the protective units is located in the head box and the front bed bottom box when in the storage state, and the other protective unit is located in the foot box and the rear bed bottom box when in the storage state.

[0008] Preferably, the telescopic support unit includes a buffer hydraulic rod, a rectangular telescopic tube, a top vertical beam and a stabilizing vertical beam. The number of the buffer hydraulic rod and the top vertical beam is one, and the number of the rectangular telescopic tube and the stabilizing vertical beam is several. The buffer hydraulic rod, the rectangular telescopic tube, the top vertical beam and the stabilizing vertical beam are connected together to form a vertically arranged frame structure. The buffer hydraulic rod and the rectangular telescopic tube can be extended or retracted to adjust the relative height of the top vertical beam.

[0009] Preferably, the protection unit comprises a supporting beam, a three-protection cloth and a first limiting steel wire, a plurality of the supporting beams are connected to the three-protection cloth and are evenly distributed, and a plurality of groups of cross-connected first limiting steel wires are connected between two adjacent supporting beams;

[0010] The support beam closest to the drive unit on the protection unit near the head of the bed is connected to the front bed bottom box, and the support beam closest to the drive unit on the protection unit near the foot of the bed is connected to the rear bed bottom box.

[0011] Preferably, the drive unit includes a drive motor, a turbine rod, a transmission gear, a first steel wire rope, a second steel wire rope, a concave roller and a tensioner box. The drive motor is connected to the two turbine rods through the transmission gear. Each turbine rod is respectively connected to the two first steel wire ropes and the two second steel wire ropes. The other end of each first steel wire rope and the other end of each second steel wire rope are connected to the corresponding support beam farthest from the drive unit. The concave roller is arranged on the moving path of the first steel wire rope and the second steel wire rope. The drive motor, the turbine rod and the transmission gear are located inside the tensioner box, and the tensioner box is located between the front bed bottom box and the rear bed bottom box.

[0012] Preferably, a circular hole for the first steel wire to pass through is provided at each end of the supporting beam in the length direction.

[0013] Preferably, it further comprises a guide unit, wherein the guide unit is respectively provided on the telescopic support unit and the protection unit, and the protection unit moves relative to the telescopic support unit through the guide unit.

[0014] Preferably, the guide unit includes a convex buckle and a concave groove, and two convex buckles are symmetrically arranged at the bottom of each supporting beam. The upper surface of the top vertical beam in each telescopic support unit and the outer side surface of the rectangular telescopic tube movable joint connected to the bed end box are provided with the concave groove, and the supporting beam can slide relative to the concave groove through the convex buckle.

[0015] Preferably, it further comprises a gravity sensing switch, a vibration sensing switch, a display, and an alarm. The gravity sensing switch, the vibration sensing switch, and the alarm are integrated inside the tightener housing, and the display is arranged outside the tightener housing.

[0016] Preferably, a backup power supply is further included, and the backup power supply is integrated inside the tightener box.

[0017] The beneficial effects of the present invention are as follows: since the telescopic support unit, the protection unit and the drive unit are all stored in the box unit when not in use, and the box unit as a whole can be detachably connected to the bed body, the time required for installation and modification is effectively shortened, and the protection device as a whole can form a modular installation structure system. The user only needs to install it on the bed body without having to purchase a new set of bed bodies, which saves costs and realizes non-destructive installation and modification of ordinary household beds.

[0018] The telescopic support unit can be expanded upward when in use to provide protection for the left and right sides of the bed. At the same time, the driving unit can drive the protection unit to move to provide all-round protection for the head, tail, top and bottom of the bed. The telescopic support unit and the protection unit cooperate with each other to form a four-dimensional linkage deployment control model, which can effectively shorten the work time required for deployment while improving the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a front view structural diagram of the present invention in a stored state;

[0021] Figure 2 It is a front view structural diagram of the present invention in an unfolded state;

[0022] Figure 3 It is a top view of the structure of the present invention in an unfolded state;

[0023] Figure 4 A top view of the drive unit of the present invention;

[0024] Figure 5 It is a transmission structure diagram of the transmission gear of the present invention;

[0025] Figure 6 A detailed structural diagram of the guide unit of the present invention;

[0026] In the figure, 1, box unit; 11, headboard box; 12, footboard box; 13, front bed bottom box; 14, rear bed bottom box; 15, front bed left side box; 16, front bed right side box; 17, rear bed left side box; 18, rear bed right side box;

[0027] 2. Telescopic support unit; 21. Buffer pressure rod; 22. Rectangular telescopic tube; 23. Top vertical beam; 24. Stabilizing vertical beam; 25. Second limit wire;

[0028] 3. Protection unit; 31. Support beam; 32. Triple protection fabric; 33. First limit wire;

[0029] 4. Drive unit; 41. Drive motor; 42. Turbine rod; 43. Transmission gear; 44. First steel wire; 45. Second steel wire; 46. Concave roller; 47. Tensioner housing;

[0030] 5. Guide unit; 51. Convex buckle; 52. Concave groove;

[0031] 61. Gravity sensor switch; 62. Vibration sensor switch; 63. Display; 64. Alarm; 65. Backup power supply;

[0032] 7. Fireproof cotton. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0036] Reference Figures 1 to 6 , the present invention provides a household bed body retrofittable earthquake protection device, comprising a box unit 1, a telescopic support unit 2, a protection unit 3 and a drive unit 4;

[0037] The box unit 1 is detachably connected to the bed and is located at the head, tail, bottom, left and right sides of the bed;

[0038] The telescopic support unit 2, the protection unit 3 and the driving unit 4 are all arranged in the box unit 1;

[0039] The telescopic support unit 2 is located on the left and right sides of the bed and the telescopic support unit 2 can adjust the relative distance between the top and bottom thereof;

[0040] The protection unit 3 is drivingly connected to the driving unit 4 and movably connected to the telescopic support unit 2;

[0041] The driving unit 4 can drive the protection unit 3 to move relative to the telescopic support unit 2 and convert it from a stored state to an expanded state. When the protection unit 3 is in the stored state, it can be stored in the box unit 1. When the protection unit 3 is in the expanded state, it can cover the head, tail, bottom and top of the bed, thereby providing comprehensive protection for the bed.

[0042] Since the telescopic support unit 2, the protection unit 3 and the drive unit 4 are all stored in the box unit 1 when not in use, and the box unit 1 as a whole can be detachably connected to the bed body, the time required for installation and modification is effectively shortened, and the protection device as a whole can form a modular installation structure system. The user only needs to install it on the bed body without having to purchase a new set of bed bodies, which saves costs and realizes non-destructive installation and modification of ordinary household beds.

[0043] When in use, the telescopic support unit 2 can be expanded upward to provide protection for the left and right sides of the bed, and can raise the height of the top of the protection unit 3. At the same time, the driving unit 4 can drive the protection unit 3 to move to provide all-round protection for the head, tail, top and bottom of the bed. The telescopic support unit 2 and the protection unit 3 cooperate with each other to form a four-dimensional linkage expansion control model, which can effectively shorten the working time required for expansion while improving the protection effect.

[0044] As an optional embodiment, the box unit 1 includes a head box 11 connected to the head of the bed, a foot box 12 connected to the tail of the bed, a front bed bottom box 13 connected to the front end of the bottom of the bed, a rear bed bottom box 14 connected to the rear end of the bottom of the bed, a front bed left box 15 connected to the left side of the front of the bed, a front bed right box 16 connected to the right side of the front of the bed, a rear bed left box 17 connected to the left side of the rear of the bed, and a rear bed right box 18 connected to the right side of the rear of the bed;

[0045] There are four telescopic support units 2, which are respectively located in the front bed left box 15, the front bed right box 16, the rear bed left box 17 and the rear bed right box 18;

[0046] There are two protection units 3. One protection unit 3 is located in the headboard box 11 and the front bed bottom box 13 when in the storage state, and the other protection unit 3 is located in the footboard box 12 and the rear bed bottom box 14 when in the storage state.

[0047] As an optional embodiment, the telescopic support unit 2 includes a buffering hydraulic rod 21, a rectangular telescopic tube 22, a top vertical beam 23 and a stabilizing vertical beam 24. The number of the buffering hydraulic rod 21 and the top vertical beam 23 is one, and the number of the rectangular telescopic tube 22 and the stabilizing vertical beam 24 is several.

[0048] The buffer hydraulic rod 21, the rectangular telescopic tube 22, the top vertical beam 23 and the stabilizing vertical beam 24 are connected together to form a vertical frame structure, thereby providing good support and protection on both the left and right sides of the bed;

[0049] The buffer hydraulic rod 21 and the rectangular telescopic tube 22 can be extended or retracted to adjust the relative height of the top vertical beam 23;

[0050] The rectangular telescopic tube 22 can be locked by an automatic lock when it is unfolded, and an unfolding spring is provided inside. The unfolding spring can exert a top force to drive the top vertical beam 23 to move upward to increase the height;

[0051] It is worth noting that, by providing the buffer hydraulic rod 21, a hydraulic buffer system can be formed to prevent the left and right top vertical beams 23 from suddenly rising when moving upwards and causing harm to personnel;

[0052] In addition, the telescopic support unit 2 can also include a second limiting steel wire 25, which can form a cross connection between the buffering hydraulic rod 21, the rectangular telescopic tube 22, the top vertical beam 23 and the stable vertical beam 24, further improving the structural strength of the telescopic support unit 2.

[0053] As an optional embodiment, the protection unit 3 includes a support beam 31, a three-proof cloth 32 and a first limiting steel wire 33. Several support beams 31 are connected to the three-proof cloth 32 and are evenly distributed. The support beams 31 have a good supporting effect, and the three-proof cloth 32 has a good protective effect and can cover the entire area.

[0054] A plurality of cross-connected first limit wires 33 are connected between two adjacent support beams 31. The first limit wires 33 can improve the structural strength, thereby improving the overall protection effect of the protection unit 3;

[0055] In the stowed state, the support beam 31 of the protection unit 3 on the foot of the bed is entirely located in the foot box 12 and the rear bed bottom box 14, and the support beam 31 of the protection unit 3 on the head of the bed is entirely located in the head box 11 and the front bed bottom box 13;

[0056] The support beam 31 on the protection unit 3 near the head of the bed, which is closest to the drive unit 4, is connected to the front bed bottom box 13, and the support beam 31 on the protection unit 3 near the foot of the bed, which is closest to the drive unit 4, is connected to the rear bed bottom box 14. This arrangement can limit the two support beams 31 and keep them in corresponding positions, thereby facilitating the overall deployment of the protection unit 3.

[0057] When in the unfolded state, the supporting crossbeam 31 of the protection unit 3 on the foot of the bed is evenly distributed over the foot box 12, the rear bed bottom box 14, and the top of half of the bed on the foot of the bed. The supporting crossbeam 31 of the protection unit 3 on the head of the bed is evenly distributed over the head of the bed box 11, the front bed bottom box 13, and the top of half of the bed on the head of the bed. Therefore, after the two protection units 3 are combined and cooperate with the two telescopic support units 2, it is equivalent to covering the entire range of the bed, thereby providing protection for the entire range of the bed.

[0058] Therefore, the protection unit 3 can form a foldable composite protection curtain structure in cooperation with the driving unit 4.

[0059] As an optional embodiment, the driving unit 4 includes a driving motor 41, a turbine rod 42, a transmission gear 43, a first steel wire 44, a second steel wire 45, a concave roller 46 and a tensioner box 47;

[0060] The drive motor 41 is connected to the two turbine rods 42 through the transmission gear 43. After the drive motor 41 is started, it can drive the two turbine rods 42 to rotate through the transmission gear 43.

[0061] The diameter of the transmission gear 43 connected to the worm gear 42 is larger than the diameter of the transmission gear 43 connected to the drive motor 41, thereby effectively increasing the torque;

[0062] Each turbine rod 42 is connected to two first steel cables 44 and two second steel cables 45, respectively. The other end of each first steel cable 44 and the other end of each second steel cable 45 are connected to the corresponding support beam 31 farthest from the drive unit 4.

[0063] The turbine rod 42 is preferably provided with a partition to separate each wire pull line;

[0064] Specifically, a circular hole for the first steel wire 44 to pass through is provided at each end of the length direction of the support beam 31. The first steel wire 44 passes through all the support beams 31 except the support beam 31 farthest from the drive unit 4 and is connected to the support beam 31 farthest from the drive unit 4. The second steel wire 45 is connected to the other side of the support beam 31 farthest from the drive unit 4.

[0065] During the rotation process, the two turbine rods 42 can release and pull out the first steel wire 44 and tighten and retract the second steel wire 45, thereby driving the support beam 31 farthest from the drive unit 4 to gradually pull outward and finally move to the top center of the bed;

[0066] The concave roller 46 is provided on the moving path of the first steel wire 44 and the second steel wire 45. The concave roller 46 can guide and assist the rolling of the first steel wire 44 and the second steel wire 45.

[0067] The drive motor 41 , the turbine rod 42 and the transmission gear 43 are located inside the tensioner box 47 , and the tensioner box 47 is located between the front bed bottom box 13 and the rear bed bottom box 14 .

[0068] As an optional embodiment, it further includes a guide unit 5, which is respectively provided on the telescopic support unit 2 and the protective unit 3. The protective unit 3 moves relative to the telescopic support unit 2 through the guide unit 5. The guide unit 5 can guide and position the movement of the protective unit 3, so that it can move quickly and accurately relative to the telescopic support unit 2.

[0069] In this embodiment, the guide unit 5 preferably includes a convex buckle 51 and a concave groove 52. Two convex buckles 51 are symmetrically arranged at the bottom of each supporting beam 31. A concave groove 52 is provided on the upper surface of the top vertical beam 23 in each telescopic support unit 2. In addition, a concave groove 52 is also provided on the outer side of the movable joint of the rectangular telescopic tube 22 connected to the end box 12 of the bed. The supporting beam 31 can slide relative to the concave groove 52 through the convex buckle 51. Since the outermost rectangular telescopic tube 22 is relatively located in the relative position of the end box 12, when the supporting beam 31 is located inside the end box 12, it has played a positioning and guiding role through the concave groove 52, and then the supporting beam 31 moves to the top vertical beam 23 and continues to play a positioning and guiding role through the concave groove 52.

[0070] As an optional embodiment, fireproof cotton 7 is further included. The fireproof cotton 7 is arranged on the top of the top vertical beam 23 and on the side of the supporting beam 31 farthest from the driving unit 4.

[0071] As an optional embodiment, it further includes a gravity sensing switch 61, a vibration sensing switch 62, a display 63, an alarm 64 and a backup power supply 65. The gravity sensing switch 61, the vibration sensing switch 62, the alarm 64 and the backup power supply 65 are integrated inside the tightener housing 47, and the display 63 is arranged outside the tightener housing 47.

[0072] The alarm 64 may preferably include multiple alarm functions such as backup power supply undervoltage alarm, earthquake alarm, and post-earthquake location transmission alarm;

[0073] In addition to the regular mains electricity, a backup power supply 65 is provided to form a dual power supply system, effectively improving the battery life to more than 7 days. The backup power supply 65 can be used in the event of a power outage, thereby preventing the earthquake equipment from being unable to start and preventing the post-earthquake location alarm from being unable to start.

[0074] The tightener box 47 is preferably provided with an openable sealing door on the side where the above-mentioned equipment is provided, so as to facilitate maintenance.

[0075] The above devices can work together to form an intelligent trigger control system for an earthquake protection device that can be installed on a household bed. The intelligent trigger control system preferably adopts a gravity-vibration dual-mode sensing linkage mechanism. When an earthquake occurs, when a person lies on the bed, the gravity sensing switch 61 is in the open state, and the vibration sensing switch 62 opens the switch when it senses an earthquake. The buffer hydraulic rods 21 and the rectangular telescopic tubes 22 on the left and right sides of the bed can drive the top vertical beam 23 and the stable vertical beam 24 to rise, so that the telescopic support unit 2 is in the expanded state. When the rectangular telescopic tube 22 rises to the limit position, it can trigger the The drive unit 4 is started, and the output shaft of the drive motor 41 of the drive unit 4 rotates, driving the turbine rod 42 to rotate through the transmission gear 43, thereby pulling the first steel wire 44 and the second steel wire 45. The first steel wire 44 is pulled out and the second steel wire 45 is retracted, so that the support beam 31 farthest from the drive unit 4 gradually moves to the top center of the bed, driving all the support beams 31 and the three-proof cloth 32 on the two protection units 3 to unfold, so that the two protection units 3 are fully unfolded and supported on the four telescopic support units 2, thereby playing a protective role on the bed.

[0076] The installation and modification time of the household bed-mounted earthquake protection device can be no more than 2 hours, and there is no need to destroy the original bed structure;

[0077] The household bed body retrofittable earthquake protection device has a fast deployment speed. By deploying the rectangular telescopic tube 22 within three seconds and under the condition of the tightener turbine rod speed of 4 seconds / meter, it can be deployed in less than 7 seconds and form a 2.5m 3 Effective protection space;

[0078] The installable earthquake protection device for household beds has a stronger structural bearing capacity, which can reach a structural bearing capacity of 800kg and above.

[0079] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person 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 based on the scope of protection of the claims.

Claims

1. A household bed-mountable earthquake protection device, characterized in that: The invention comprises a box unit (1), a telescopic support unit (2), a protection unit (3) and a drive unit (4); the box unit (1) is detachably connected to the bed and is located at the head, tail, bottom, left and right sides of the bed; the telescopic support unit (2), the protection unit (3) and the drive unit (4) are all arranged in the box unit (1); the telescopic support unit (2) is located at the left and right sides of the bed and the telescopic support unit (2) can adjust the relative distance between its top and bottom; the protection unit (3) is drive-connected to the drive unit (4) and movably connected to the telescopic support unit (2); the drive unit (4) can drive the protection unit (3) to move relative to the telescopic support unit (2) and convert from a stored state to an unfolded state; when the protection unit (3) is in the unfolded state, it can cover the head, tail, bottom and top of the bed; when the telescopic support unit (2) is in the unfolded state, it can cover the left and right sides of the bed and can raise the height of the top of the protection unit (3).

2. The household bed-mountable earthquake protection device according to claim 1, characterized in that: The box unit (1) comprises a head box (11) connected to the head of the bed, a foot box (12) connected to the tail of the bed, a front bed bottom box (13) connected to the front end of the bottom of the bed, a rear bed bottom box (14) connected to the rear end of the bottom of the bed, a front bed left box (15) connected to the left side of the front of the bed, a front bed right box (16) connected to the right side of the front of the bed, a rear bed left box (17) connected to the left side of the rear of the bed, and a rear bed right box (18) connected to the right side of the rear of the bed. ), the number of the telescopic support units (2) is four, which are respectively located in the left side box (15) of the front bed, the right side box (16) of the front bed, the left side box (17) of the rear bed, and the right side box (18) of the rear bed; the number of the protection units (3) is two groups, one group of the protection units (3) is located in the headboard box (11) and the front bed bottom box (13) when in the storage state, and the other group of the protection units (3) is located in the footboard box (12) and the rear bed bottom box (14) when in the storage state.

3. The household bed retrofittable earthquake protection device according to claim 2, characterized in that: The telescopic support unit (2) comprises a buffer hydraulic rod (21), a rectangular telescopic tube (22), a top vertical beam (23) and a stabilizing vertical beam (24); the number of the buffer hydraulic rod (21) and the top vertical beam (23) is one, the number of the rectangular telescopic tube (22) and the stabilizing vertical beam (24) is several; the buffer hydraulic rod (21), the rectangular telescopic tube (22), the top vertical beam (23) and the stabilizing vertical beam (24) are connected together to form a vertically arranged frame structure; the buffer hydraulic rod (21) and the rectangular telescopic tube (22) can be extended or retracted to adjust the relative height of the top vertical beam (23).

4. The household bed-mountable earthquake protection device according to claim 3, characterized in that: The protection unit (3) comprises a supporting beam (31), a three-protection cloth (32) and a first position-limiting steel wire (33); a plurality of the supporting beams (31) are connected to the three-protection cloth (32) and are evenly distributed; a plurality of groups of cross-connected first position-limiting steel wires (33) are connected between two adjacent supporting beams (31); The support beam (31) on the protection unit (3) near the head of the bed and closest to the drive unit (4) is connected to the front bed bottom box (13), and the support beam (31) on the protection unit (3) near the foot of the bed and closest to the drive unit (4) is connected to the rear bed bottom box (14).

5. The household bed-mountable earthquake protection device according to claim 4, characterized in that: The driving unit (4) comprises a driving motor (41), a turbine rod (42), a transmission gear (43), a first steel wire (44), a second steel wire (45), a concave roller (46) and a tensioner housing (47). The driving motor (41) is connected to the two turbine rods (42) through the transmission gear (43). Each turbine rod (42) is connected to the two first steel wires (44) and the two second steel wires (45). The other end of each first steel wire (44) is connected to the second steel wire (45). The other end of each second steel wire pull cable (45) is connected to the corresponding support beam (31) farthest from the drive unit (4), the concave roller (46) is arranged on the moving path of the first steel wire pull cable (44) and the second steel wire pull cable (45), the drive motor (41), the turbine rod (42) and the transmission gear (43) are located inside the tensioner box (47), and the tensioner box (47) is located between the front bed bottom box (13) and the rear bed bottom box (14).

6. The household bed retrofittable earthquake protection device according to claim 5, characterized in that: A circular hole for the first steel wire (44) to pass through is provided at each of the two ends of the supporting beam (31) in the length direction.

7. The household bed-mountable earthquake protection device according to claim 5, characterized in that: It also includes a guide unit (5), which is respectively arranged on the telescopic support unit (2) and the protection unit (3), and the protection unit (3) moves relative to the telescopic support unit (2) through the guide unit (5).

8. The household bed retrofittable earthquake protection device according to claim 7, characterized in that: The guide unit (5) includes a convex buckle (51) and a concave groove (52), and two convex buckles (51) are symmetrically provided at the bottom of each supporting crossbeam (31). The concave groove (52) is provided on the upper surface of the top vertical beam (23) in each telescopic support unit (2) and the outer side surface of the movable joint of the rectangular telescopic tube (22) connected to the bed end box (12). The supporting crossbeam (31) can slide relative to the concave groove (52) through the convex buckle (51).

9. The household bed retrofittable earthquake protection device according to claim 5, characterized in that: The invention also includes a gravity sensing switch (61), a vibration sensing switch (62), a display (63), and an alarm (64). The gravity sensing switch (61), the vibration sensing switch (62), and the alarm (64) are integrated inside the tightener housing (47), and the display (63) is arranged outside the tightener housing (47).

10. The household bed-mountable earthquake protection device according to claim 9, characterized in that: It also includes a backup power supply (65), which is integrated inside the tightener box (47).

Images