Gas spring noon break chair

Abstract

An air spring noon break chair comprises a frame body and a limiting piece arranged on the frame body, and further comprises a backrest part hinged to the frame body, when the backrest part is stressed to topple backwards and abut against the limiting piece, the backrest part stops toppling backwards, at the moment, the compression amount of an air spring is smaller than the maximum compression amount of the air spring, the air spring has the compression allowance, and the service life of the air spring is prolonged; and the possibility of explosion is reduced, so that the property and personal safety is ensured. Compared with a common double-air-spring design scheme in the market, due to the fact that the limiting piece limits the rotating angle of the backrest part, the noon break chair can adopt a single air spring, the number of the air springs is reduced, and therefore the production cost is reduced, and the application range of the noon break chair is widened. Moreover, the sitting posture position and the lying posture position can be quickly switched through the air spring, the backrest part can be limited at any position between the sitting posture position and the lying posture position through the switch, diversified use requirements are met, the position of the backrest part is convenient and smooth to change, and even pupils can independently operate the backrest.

Description

Technical Field

[0001] This utility model relates to the field of nap chair technology, and in particular to a gas spring nap chair. Background Technology

[0002] Currently, nap chairs with both sitting and reclining positions are gradually being introduced into classrooms. These chairs include gas springs for support and backrest adjustment; the gas springs rely on the pressure of internal gas to provide elasticity. Common nap chairs have two gas springs to counteract the force of the backrest tilting backward and prevent over-compression, but this solution is more expensive. Using a single gas spring would subject it to excessive pressure, potentially causing it to explode. An exploding gas spring not only damages the chair itself but can also cause damage to surrounding property, such as smashing desks, computers, and other equipment. More seriously, the fragments and shockwaves generated during an explosion can cause personal injury to the user. Utility Model Content

[0003] This utility model provides a gas spring nap chair, which aims to prevent the gas spring from being over-compressed by setting a limiting device, thereby reducing the probability of the gas spring exploding and protecting property and personal safety.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A gas spring nap chair includes a frame, the frame having a seat, and further includes:

[0006] The backrest is hinged to the frame so that the backrest has at least a sitting position and a lying position during rotation;

[0007] A gas spring, with its fixed end hinged to the frame and its output end hinged to the backrest, is used to return the backrest from a reclining position to a sitting position.

[0008] A switch for turning the gas spring on and off, thereby limiting the backrest to any position between a sitting position and a reclining position; and,

[0009] A limiting element is provided on the frame;

[0010] When the backrest tilts backward and abuts against the limiting member, the compression of the gas spring is less than its maximum compression. Furthermore, the backrest includes a support device with a backrest body. The support device includes a hinge and support rods connected to both sides of the hinge. The middle part of the hinge is hinged to the frame, and the output end of the gas spring device is hinged to the hinge. When the support device is in a reclining position, the support rods abut against the limiting member.

[0011] Furthermore, it also includes a headrest, which is hinged to the top of the backrest body, so that the headrest has a supporting position and a storage position during rotation relative to the backrest body; it also includes a locking member to lock the headrest in the supporting position.

[0012] Furthermore, the locking member is movably disposed on the headrest, and the backrest body is provided with a first groove. When the headrest is in the support position, the locking member is engaged with the first groove.

[0013] Furthermore, the backrest body is also provided with a second groove, and when the headrest is in the storage position, the locking member is engaged with the second groove.

[0014] Furthermore, an elastic element is provided between the locking member and the headrest, so that the locking member in the supporting position automatically engages with the first groove under the action of elastic force, and the locking member in the storage position automatically engages with the second groove under the action of elastic force.

[0015] Furthermore, the headrest includes a headrest bracket and a reinforcing rod, the top and bottom ends of the headrest bracket are connected to the reinforcing rod, and the headrest bracket is made of TPE at least for the part used to support the user's head.

[0016] Furthermore, armrests are fixedly connected to both sides of the seat.

[0017] Furthermore, it also includes a footrest device, one end of which is slidably connected to the frame, and the other end of which is provided with a flip-up support plate. When the backrest is in a reclining position, the support plate is higher than the seat.

[0018] Furthermore, it also includes a base, to which the frame is lifted and lowered to change the height of the frame.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model proposes a gas spring nap chair, including a frame and a limiting member disposed on the frame, and a backrest hinged to the frame. When the backrest is subjected to force and tilts backward against the limiting member, the backrest stops tilting backward. At this time, the compression of the gas spring is less than its maximum compression, giving the gas spring a compression margin, extending its service life, reducing the possibility of explosion, and thus ensuring property and personal safety. Simultaneously, based on the limiting member's restriction on the backward tilting angle of the backrest, compared to the common dual-gas spring design in the market, this nap chair uses a single gas spring, reducing the number of gas springs and thus lowering production costs. Furthermore, the gas spring allows for quick switching between sitting and reclining positions. A switch can limit the backrest to any position between sitting and reclining, meeting diverse usage needs. The backrest position change process is convenient and smooth, even elementary school students can operate it independently, expanding its applicability.

[0021] 2. The gas spring nap chair proposed in this utility model also includes a headrest. The overall structure is convenient and sturdy. The headrest has a support position and a storage position. During lunch break or other rest time, the head can be adjusted to the support position. It also includes a locking device to lock the headrest in the support position to prevent the headrest from shifting during the support process. At the same time, the headrest can be adjusted to the storage position during class or other work time to avoid affecting work.

[0022] 3. The gas spring nap chair proposed in this utility model includes a headrest support and a reinforcing rod. Compared with the headrest support only connected to the reinforcing rod in the market, the top and bottom ends of the headrest support in this model are connected to the reinforcing rod, which enhances the connection strength between the headrest support and the reinforcing rod. Moreover, at least the part of the headrest support used to support the user's head is made of TPE. TPE has the elasticity of rubber and the processing convenience of plastic, which is convenient for production and processing, while effectively ensuring user comfort.

[0023] 4. The gas spring nap chair proposed in this utility model has armrests integrally formed on both sides of the seat to ensure that the user will not fall off the seat, making the user feel safer during the nap. The user can put their hands on the armrests to improve the user experience. At the same time, it is more durable than detachable armrests and makes it easier for the user to get up quickly by gripping the armrests.

[0024] 5. The gas spring nap chair proposed in this utility model has a support plate that is higher than the seat when the support device is in a reclining position, which helps users relax and improve the effect of napping.

[0025] 6. The gas spring nap chair proposed in this utility model also includes a base, and the frame is lifted and connected to the base to change the height of the frame, so as to adapt to users of different heights. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the sitting position of a gas spring nap chair according to the present invention.

[0028] Figure 2 This is a schematic diagram of the reclining position of a gas spring nap chair according to the present invention;

[0029] Figure 3 This is an exploded view of a gas spring nap chair according to the present invention;

[0030] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0031] Figure 5 This is a schematic diagram of another reclining position of the gas spring nap chair according to the present invention;

[0032] Figure 6 for Figure 5 Enlarged view of a section at point B in the middle;

[0033] Figure 7 This is a schematic diagram of the frame of a gas spring nap chair according to the present invention;

[0034] Figure 8 This is a schematic diagram of the backrest body of a gas spring nap chair according to the present invention.

[0035] Figure 9 This is an exploded view of the headrest of a gas spring nap chair according to the present invention;

[0036] Figure 10 This is a cross-sectional view of the headrest of a gas spring nap chair according to the present invention;

[0037] Figure 11 This is a schematic diagram showing the unfolded angle of a gas spring nap chair according to the present invention in a sitting posture.

[0038] Figure 12 This is a schematic diagram showing the reclining position and unfolded angle of a gas spring nap chair according to this utility model.

[0039] In the diagram, 10 is the frame; 101 is the sleeve; 20 is the seat; 201 is the armrest; 30 is the backrest; 40 is the support device; 401 is the hinge; 402 is the support rod; 4021 is the contact surface; 50 is the backrest body; 501 is the first groove; 502 is the second groove; 60 is the gas spring; 70 is the limiting component; 701 is the baffle; 80 is the switch; 90 is the headrest; 901 is the headrest bracket; 902 is the reinforcing rod; 903 is the support surface; 1001 is the locking component; 1002 is the elastic component; 110 is the footrest device; 1101 is the sliding rod; 1102 is the tray; 120 is the base; and 130 is the storage basket. Detailed Implementation

[0040] The following is combined with Figures 1-12 This utility model will be described in detail.

[0041] A gas spring nap chair includes a frame 10, a seat 20 on the frame 10, and further includes:

[0042] The backrest 30 is hinged to the frame 10, so that the backrest 30 has at least a sitting position and a reclining position during rotation.

[0043] A gas spring 60, with its fixed end hinged to the frame 10 and its output end hinged to the backrest 30, is used to return the backrest 30, which is in a reclining position, to a sitting position.

[0044] Switch 80 is used to turn the gas spring 60 on and off, thereby limiting the backrest 30 to any position between a sitting position and a reclining position; and...

[0045] Limiting component 70 is installed on frame 10.

[0046] The gas spring 60 nap bed proposed in this embodiment, when the backrest 30 is tilted backward under force and abuts against the limiting member 70, stops tilting backward. At this time, the compression of the gas spring 60 is less than its maximum compression, giving the gas spring 60 a compression margin, extending its service life, reducing the possibility of explosion, and thus ensuring property and personal safety. Simultaneously, based on the limitation of the backward tilting angle of the backrest 30 by the limiting member 70, this nap chair uses a single gas spring 60, reducing the number of gas springs 60 compared to the commonly seen dual gas spring 60 design, thereby reducing production costs and expanding its application range.

[0047] In this embodiment, the backrest 30 includes a support device 40, the support device 40 is provided with a backrest body 50, the support device 40 includes a hinge 401 and support rods 402 connected to both sides of the hinge 401, the middle part of the hinge 401 is hinged to the frame 10, the output end of the gas spring 60 device is hinged to the hinge 401, and when the support device 40 is in a reclining position, the support rods 402 abut against the limiting member 70.

[0048] In this embodiment, the limiting member 70 is provided with a baffle 701, and the support rod 402 abuts against one end of the baffle 701 and is provided with an abutting plane 4021, which increases the contact area between the support rod 402 and the baffle 701 and improves the limiting effect.

[0049] In this embodiment, when the backrest 30 is in a reclining position, pressing the switch 80 will turn off the gas spring 60, and the gas spring 60 will maintain the backrest 30 in a reclining position. When getting up, pressing the switch 80 again will turn on the gas spring 60, and the gas spring 60 will return the backrest 30 to a sitting position.

[0050] This embodiment also includes a headrest 90, which is hinged to the top of the backrest body 50, allowing the headrest 90 to have a supporting position and a stowed position during rotation relative to the backrest body 50. It also includes a locking member 1001 to lock the headrest 90 in the supporting position. Further, the locking member 1001 is movably disposed on the headrest 90. The backrest body 50 has a first groove 501. When the headrest 90 is in the supporting position, the locking member 1001 engages with the first groove 501. The backrest body 50 also has a second groove 502. When the headrest 90 is in the stowed position, the locking member 1001 engages with the second groove 502 to prevent the headrest 90 from wobbling in the stowed position.

[0051] In this embodiment, an elastic element 1002 is provided between the locking member 1001 and the headrest 90. The elastic element 1002 is generally a compression spring, which allows the locking member 1001 in the supporting position to automatically engage with the first groove 501 under the action of elastic force, and allows the locking member 1001 in the storage position to automatically engage with the second groove 502 under the action of elastic force.

[0052] In this embodiment, the headrest 90 includes a headrest bracket 901 and a reinforcing rod 902. Compared to commercially available headrest brackets where only the headrest bracket 901 is connected to the reinforcing rod 902, the top and bottom ends of this headrest bracket 901 are connected to the reinforcing rod 902, enhancing the connection strength between the headrest bracket 901 and the reinforcing rod 902 and extending its service life. Furthermore, the headrest bracket 901 is provided with a support surface 903 for supporting the user's head. The support surface 903 is made of TPE material. TPE combines the elasticity of rubber with the processing convenience of plastic, facilitating production and processing while effectively ensuring user comfort. In other embodiments, both the headrest bracket 901 and the reinforcing rod 902 are made of TPE material, further improving the user experience.

[0053] In this embodiment, armrests 201 are fixedly connected to both sides of the seat 20. The armrests 201 can be integrally formed into the seat 20, or they can be locked to the seat 20 by fasteners to ensure that the user will not fall off the seat 20, making the user feel safer during lunch break. During lunch break, the user can rest their hands on the armrests 201 to improve the user experience. At the same time, the armrests are more durable than detachable armrests, and the user can quickly get up by gripping the armrests 201.

[0054] In this embodiment, a footrest device 110 is also included. One end of the footrest assembly is slidably connected to the frame 10, and the other end of the footrest assembly is provided with a flip-up tray 1102. Specifically, as shown... Figure 12 As shown, the footrest device 110 includes a slide rod 1101, and the bottom of the frame 10 is provided with a sleeve 101 adapted to the slide rod 1101. The other end of the slide rod 1101 is provided with a support plate 1102, which is horizontally rotatable and connected to both sides of the slide rod 1101, and the two support plates 1102 are linked together. When the backrest 30 is in a seated position, the angle between the backrest 30 and the footrest assembly is 95 degrees. Figure 11 As shown; when the backrest 30 is in a reclining position, the angle between the backrest 30 and the footrest assembly is 135 degrees, unlike the 135 degrees found in commercially available backrests. In this embodiment, the angle between the backrest 30 and the footrest assembly is 155 degrees. Figure 12 As shown, the angle is wider, improving user comfort. Furthermore, as... Figure 12 As shown, when the user leans back against the backrest 30 and reclines to a lying position, the seat 20 tilts back 4 degrees simultaneously, causing the sleeve 101 to rotate. Then, the slide rod 1101 pulls out the support plate 1102 and lifts it upward, making the support plate 1102 higher than the seat 20. This helps the user relax and improves the effect of the afternoon nap.

[0055] In this embodiment, a base 120 is also included. The frame 10 is height-adjustable to the base 120 to change its height, accommodating users of different heights. A seat 20 is hinged to the frame 10. In a reclining position, the seat 20 can rotate relative to the frame 10, tilting backward by 4 degrees to increase the user's sense of weightlessness and improve the user experience. The base 120 also includes a storage basket 130 for temporarily placing items.

[0056] The gas spring nap chair proposed in this embodiment is used as follows:

[0057] In use, pull the locking member 1001 to rotate the headrest 90 from the storage position to the support position, then release the locking member 1001 so that it engages with the first groove 501, adjusting the headrest 90 to the support position; the user pulls the switch 80 of the gas spring 60, sits on the seat 20 and leans against the backrest 30, and leans back, causing the seat 20 and backrest 30 to lean back simultaneously. When the backrest 30 tilts to the reclining position, the seat 20 tilts back 4 degrees, then the switch 80 is turned off, thus maintaining the backrest 30 in the reclining position, and the footrest device 110 is pulled out. Figure 2 As shown. At the same time, when the user sits on the seat 20, the seat 20 sinks by 2 centimeters.

[0058] When switching to a seated position, simply pull switch 80 again. The user stands up, and gas spring 60 automatically resets backrest 30, converting it to a seated position. Simultaneously, seat 20 rotates forward 4 degrees, and locking member 1001 is pulled, rotating headrest 90 from the support position to the storage position. Then, releasing locking member 1001 allows it to engage with the second groove 502, thus adjusting headrest 90 to the storage position and retracting footrest device 110. Figure 1 As shown.

[0059] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A gas spring nap chair, comprising a frame, wherein the frame is provided with a seat, characterized in that, Also includes: The backrest is hinged to the frame so that the backrest has at least a sitting position and a lying position during rotation; A gas spring, with its fixed end hinged to the frame and its output end hinged to the backrest, is used to return the backrest from a reclining position to a sitting position. A switch for turning the gas spring on and off, thereby limiting the backrest to any position between a sitting position and a reclining position; and, A limiting member is provided on the frame, and the limiting member is provided with a baffle. When the backrest tilts backward and comes into contact with the baffle, the backrest stops tilting backward, at which point the compression of the gas spring is less than its maximum compression.

2. The gas spring nap chair as described in claim 1, characterized in that, The backrest includes a support device, which has a backrest body. The support device includes a hinge and support rods connected to both sides of the hinge. The middle part of the hinge is hinged to the frame. The output end of the gas spring device is hinged to the hinge. When the support device is in a reclining position, the support rods abut against the limiting member.

3. A gas spring nap chair as described in claim 2, characterized in that, It also includes a headrest, which is hinged to the top of the backrest body, so that the headrest has a supporting position and a storage position during rotation relative to the backrest body; it also includes a locking member to lock the headrest in the supporting position.

4. A gas spring nap chair as described in claim 3, characterized in that, The locking member is movably disposed on the headrest, and the backrest body is provided with a first groove. When the headrest is in the support position, the locking member is engaged with the first groove.

5. A gas spring nap chair as described in claim 4, characterized in that, The backrest body is also provided with a second groove, and when the headrest is in the storage position, the locking member is engaged with the second groove.

6. A gas spring nap chair as described in claim 5, characterized in that, An elastic element is provided between the locking member and the headrest, so that the locking member in the supporting position automatically engages with the first groove under the action of elastic force, and the locking member in the storage position automatically engages with the second groove under the action of elastic force.

7. A gas spring nap chair as described in claim 3, characterized in that, The headrest includes a headrest bracket and a reinforcing rod, the top and bottom ends of the headrest bracket are connected to the reinforcing rod, and the headrest bracket is made of TPE at least for the part that supports the user's head.

8. A gas spring nap chair as described in claim 1, characterized in that, Armrests are fixedly connected to both sides of the seat.

9. A gas spring nap chair as described in claim 1, characterized in that, It also includes a footrest device, one end of which is slidably connected to the frame, and the other end of which is provided with a flip-up support plate. When the backrest is in a reclining position, the support plate is higher than the seat.

10. A gas spring nap chair as described in claim 1, characterized in that, It also includes a base, to which the frame is lifted and lowered to change the height of the frame.

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