A one-sided flexible bending and fitting yurt felt

Abstract

A single-sided flexible bending and fitting Mongolian yurt felt blanket, comprising a barrier air cushion, the barrier air cushion comprising a lower row pipe pad (10), an upper row pipe pad (20) and a close-keeping (30, 40), a lower flexible hinge (12) is connected between two adjacent lower closed pipe bodies (11) in a flexible plate shape by being interlaced and woven up and down; the upper closed pipe body (21) is stacked above the space between two adjacent lower closed pipe bodies (11) to seal the space; the close-keeping (30, 40) can make the close-keeping (30) only apply force to the upper closed pipe body (21) in the thickness direction or can reduce the bending stress of the upper closed pipe body 21 when the lower row pipe pad (10) is flexibly and outwardly bent, so that it can be closely kept above two adjacent lower closed pipe bodies (11) to seal the space. It can be flexibly bent to have good fitting, and has excellent heat preservation performance which is obviously better than that of 5-layer wool felt.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of Mongolian yurt, in particular to a Mongolian yurt tarpaulin capable of being flexibly bent on one side. BACKGROUND

[0002] As one of the important carriers of the Mongolian cultural heritage, the Mongolian yurt has been passed down by generations of Mongolian herdsmen due to its unique architectural form and the characteristics of being mobile, easy to assemble and inexpensive. In summer, the Mongolian yurt can benefit from the smooth ventilation brought by its dome structure to obtain a comfortable indoor environment. The traditional Mongolian yurt is covered with tarpaulin for heat preservation, which is composed of a cover, a tarpaulin and a surrounding tarpaulin. The cover includes two fan-shaped woolen blankets. The surrounding tarpaulin is generally composed of four rectangular woolen blankets and is used to wrap the yurt. The indoor grassland is covered with a blanket, which can effectively prevent moisture and cold when people sit or sleep on it. However, this architectural form is in danger of gradual disappearance because it cannot be improved in terms of living environment. The existing Mongolian yurt tarpaulin and blanket have the following problems:

[0003] Problem 1: The heat preservation performance of the tarpaulin is relatively poor. Woolen blanket is usually used for tarpaulin, which is a fabric with strong flexibility and good warmth retention. The Mongolian yurt usually covers woolen blanket to resist the sudden drop in temperature at night. On the one hand, although woolen blanket is a non-woven fabric material formed by interweaving and hooking wool fibers, in recent years, machine-produced woolen blanket has replaced traditional handmade rolling blanket technology. Woolen fibers are mixed with cotton fibers and PVA fibers and other chemical fibers, which increases the flexibility of woolen blanket but greatly reduces its warmth retention. On the other hand, there are inevitable gaps in the lap joints of woolen blanket. Cold air continuously penetrates into the yurt along the gaps, which makes the indoor temperature rise slowly and the heat preservation time short.

[0004] Problem 2: Large volume and heavy weight. To achieve good heat preservation, woolen blanket should be at least 9mm thick. A Mongolian yurt usually needs at least two 10mm thick woolen blankets stacked together. The cover and the surrounding tarpaulin require a total of 4 large woolen blankets, which are rolled into 4 rolls. The volume is super large and the weight exceeds 200kg. At least one pickup truck is needed to transport the woolen blanket.

[0005] Problem 3: The moisture-proof and cold-proof ability of the indoor blanket is limited. The air insulation layer formed by the fine and curled fiber structure inside the woolen blanket can prevent moisture and cold, but the fabric is gradually compressed after a long time of use. The internal fiber structure is gradually compressed, making it difficult to maintain air, so the moisture-proof and cold-proof ability decreases year by year.

[0006] In addition, the existing technology of the pipe body tightly arranged air cushion has the following technical problems:

[0007] (1) The air cushion with tightly arranged pipe body is mainly developed for preventing hemorrhoids based on air cushion beds, and has poor curling and fitting performance in use.

[0008] Japanese KEEPU KK company discloses a medical air mattress (publication number: JP patent publication 8164166A, publication date: June 25, 1996), including a plurality of longitudinally arranged tubular air bags 2, and are pneumatically interconnected by embedding the hose 8 transversely to the tube end of the air bag. The arrangement of air bags 2 is wrapped in a shell 1 to form a flat mattress. The air bag is made of flexible material, such as Figure 5 As shown, the above-mentioned flat medical air mattress can be bent at a certain point, but the two branches of the bending are still flat and fit on the bed board to adapt to the head of the bed that can be raised. However, the flat air mattress is curved into a curve, and due to the need for bending constraint at each point, the curling fit performance is poor in use, and it is not suitable for the use requirements of the Mongolian tent.

[0009] (2) The air mattress with closely arranged tubes has poor heat insulation performance between the tubes.

[0010] American THOMAS Roy C. discloses an adjustable inflatable mattress sleeping bag (publication number: US5553339A, publication date: September 10, 1996), which is formed by closely arranging a plurality of air tubes 30 with U-shaped cross-section channels 38, and the closely arranged air tubes 30 are wrapped in an external cover 34. The U-shaped cross-section air tube 30 increases the contact area between the tubes, but in the inflated state, if it is used in a bending fit scene, the contact between the tubes of the air tube 30 will be reduced, even the air will leak out, and the biggest disadvantage of the air mattress used for curved surface heat insulation is that the heat insulation performance between the tubes is very poor, and the cold air will enter the room through the weak gap, which is not suitable for the use requirements of the Mongolian tent.

[0011] The use state means that all the tubular air bags are in an inflated state under a certain air pressure, although the adjustable inflatable mattress sleeping bag can be rolled into a roll, but the roll is in a non-use state of releasing air.

[0012] In summary, the Mongolian tent requires the following requirements for the air mattress: ① In the use state, it can be flexibly bent and fit along the convex curved surface on one side, and the bending stress is lower than that of the wool felt. A higher bending stress exists like a piece of dead sheet, which needs to be fixed at each node, so that the fit performance of the tent is greatly reduced. ② The heat preservation performance is comparable to that of the flat air mattress.

[0013] Therefore, there is an urgent need in the art for a tent specifically used for Mongolian tent, which can be flexibly bent and fit along the convex curved surface on one side, has relatively low bending stress, has the moisture-proof and cold-proof ability of the flat air mattress, is light in weight, and is low in manufacturing cost. It is an urgent problem to be solved in the development of Mongolian tent. SUMMARY

[0014] In view of the defects in the prior art, the present application aims to provide a single-sided flexible curved Mongolian yurt felt and a manufacturing method thereof, which can be flexibly curved along a convex curved surface, has relatively low bending stress, has moisture and cold insulation capacity with a flat air cushion, is light in weight, and is low in manufacturing cost, so as to solve the technical problem that the Mongolian yurt felt is not suitable for living.

[0015] The present application is achieved in the following manner. A single-sided flexible curved Mongolian yurt felt comprises

[0016] The lower row of pipe pads comprises a plurality of lower closed pipe bodies and lower flexible hinges. The lower closed pipe bodies are arranged in parallel to the width direction and extend along the length direction at a fixed interval L. The flexible hinges are connected between two adjacent lower closed pipe bodies in a flexible plate shape.

[0017] The upper row of pipe pads comprises a plurality of upper closed pipe bodies. The upper closed pipe bodies are stacked above the interval between two adjacent lower closed pipe bodies to seal the interval.

[0018] The lower surface of the lower row of pipe pads is inner, and the upper surface of the upper row of pipe pads is outer.

[0019] The close-keeping structure can only apply force to the upper closed pipe body in the thickness direction or reduce the bending stress of the upper closed pipe body when the lower row of pipe pads is flexibly curved outward, so that the upper closed pipe body can be closely kept above the two adjacent lower closed pipe bodies to seal the interval.

[0020] Further, the close-keeping structure comprises a sliding part, which can make the two adjacent lower closed pipe bodies slide outward relative to the two wings of the upper closed pipe body to reduce the deflection.

[0021] Further, the sliding part comprises a sliding groove pair and a sliding plug pair. The sliding groove pair is symmetrically arranged on the top surface of the two adjacent lower closed pipe bodies on both sides of the upper flexible hinge. The sliding plug pair is symmetrically arranged on the lower surface of the upper closed pipe body on both sides of the upper flexible hinge. The side wall of the sliding plug pair is slidingly fitted in the corresponding sliding groove pair.

[0022] Further, the close-keeping structure comprises a plurality of constraint wire rings, an upper fabric layer and a lower fabric layer. The upper fabric layer is arranged above the upper row of pipe pads, and the lower fabric layer is arranged below the lower row of pipe pads. The upper closed pipe body is arranged in a plurality of constraint wire rings arranged side by side and alternately with the lower flexible hinge. The upper part and the lower part of the constraint wire ring are fixedly connected with the upper surface layer and the lower surface layer, respectively. The middle part of the constraint wire ring crosses the interval between the two lower closed pipe bodies to constrain the upper closed pipe body in the thickness direction above the two lower closed pipe bodies.

[0023] Further, the lower flexible hinge comprises a plurality of soft rope pairs, which are alternately and cross-woven between a plurality of lower closed tube bodies arranged at intervals.

[0024] Further, the upper closed tube body is stacked above the interval between two adjacent lower closed tube bodies, so that the length of the contact arc between the upper closed tube body and the lower closed tube body in the cross section is greater than or equal to a fixed value.

[0025] Further, the upper closed tube body comprises a cross-section reducing portion, which is provided with an upper flexible hinge at the minimum cross-section, and is symmetrically connected to a step portion on both sides of the upper flexible hinge; the cross-section reducing portion comprises two abutting edges adjacent to the step portion, which abut against the top surface of the two lower closed tube bodies, so that an empty cavity is formed between the cross-section reducing portion and the upper flexible hinge.

[0026] A yurt felt with the single-side flexible bending and fitting function comprises

[0027] An inner surface layer is optionally provided, and the inner surface layer comprises an inner layer body, which is sprayed with an outer rubber layer on one side;

[0028] An air cushion layer, which is the yurt felt with the single-side flexible bending and fitting function; the outer rubber layer is integrally connected with the air cushion layer;

[0029] An outer surface layer, which comprises an outer layer body, and the outer layer body is sprayed with an inner rubber layer on one side, and the inner rubber layer is integrally connected with the air cushion layer.

[0030] Further, a plurality of bottom felts are further provided, the bottom felts are fixed sector-shaped with a fixed central angle, and the plurality of bottom felts are spliced to form a circular ground of the yurt, the large-arc end of the bottom felt is flexibly connected to the bottom of the surrounding felt, and a ground buckle is arranged at the splicing position of two adjacent bottom felts, and the ground buckle is fixed to the ground by a ground nail, and after being fixed, the ground buckle is tightly wrapped at the splicing position; the bottom felt is integrally connected to the bottom of the yurt felt by a flexible hinge.

[0031] The single-side flexible bending and fitting yurt felt has good fitting performance, excellent heat preservation performance which is obviously superior to that of the five-layer wool felt, small thickness, small curling volume, light weight, low industrial batch manufacturing cost, and good practical value. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a main sectional view of the air cushion layer of Example 1 of the single-side flexible bending and fitting yurt felt.

[0033] Figure 2This is a front cross-sectional view of a yurt covering that can be flexibly bent and fitted on one side according to the present invention;

[0034] Figure 3 This is a main cross-sectional view of the air cushion layer in Embodiment 2 of the present invention, which is a unilaterally flexible and bendable yurt felt.

[0035] Figure 4 This is a schematic diagram of a partial bending of the air cushion layer of a unilaterally flexible and bendable yurt felt according to the present invention.

[0036] Figure 5 This invention relates to a unilaterally flexible and bendable yurt felt. Figure 4 A magnified view of a portion of the image (I).

[0037] The reference numerals in the above figure:

[0038] 10. Lower pipe pad, 11. Lower sealed pipe body, 12. Lower flexible hinge, 13. Soft rope pair.

[0039] 20 Upper pipe gasket, 21 Upper closed pipe body, 22 Reduced cross-section section, 23 Upper flexible hinge, 24 Stepped section, 25 Abutting edge, 26 Cavity, 27 Filling strip, 28 Elastic bladder, 29 Sealing strip.

[0040] 30 Tightly adhered, 31 Constraint loop, 32 Upper fabric layer, 33 Lower fabric layer, 34 Pressure plate, 35 Left curved surface, 36 Right curved surface, 37 Upper curved surface, 38 Groove.

[0041] 40 Tightly adhered, 41 Sliding part, 42 Sliding groove pair, 43 Sliding plug pair, 44 Blocking cavity, 45 Ventilation micropore. Detailed Implementation

[0042] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but are not intended to limit the scope of the present invention.

[0043] Example 1

[0044] As shown in the figure, a yurt tarpaulin that can be flexibly bent and fitted on one side includes a barrier air cushion. The barrier air cushion includes a lower row of pipe pads 10. The lower row of pipe pads 10 includes a plurality of lower closed pipe bodies 11 and lower flexible hinges 12. The lower closed pipe bodies 11 are arranged at fixed intervals L along the length direction with their axes parallel to the width direction. The flexible hinges 12 are woven together vertically and vertically between two adjacent lower closed pipe bodies 11 to form a flexible plate shape.

[0045] The upper pipe pad 20 includes a plurality of upper closed pipe bodies 21, which are stacked on top of the gap between two adjacent lower closed pipe bodies 11 to seal the gap.

[0046] The lower surface of the lower row of pipe pads 10 is inner, and the upper surface of the upper row of pipe pads 20 is outer;

[0047] The close-keeping 30 can only apply force to the upper closed pipe body 21 in the thickness direction when the lower row of pipe pads 10 is flexibly outward curved, so that it can be tightly attached to the two adjacent lower closed pipe bodies 11 above to seal the space therebetween.

[0048] The flexibly outward curved, which makes it tightly attached to the two adjacent lower closed pipe bodies 11 above to seal the space therebetween, is achieved by:

[0049] The close-keeping 30 only applies force to the upper closed pipe body 21 in the thickness direction, so that it is tightly attached to the two adjacent lower closed pipe bodies 21 above.

[0050] The close-keeping 30 includes a plurality of constraint wire rings 31, an upper fabric layer 32 and a lower fabric layer 33, the upper fabric layer 32 is arranged above the upper row of pipe pads 20, and the lower fabric layer 33 is arranged below the lower row of pipe pads 10; the upper closed pipe body 11 is arranged in a plurality of parallel constraint wire rings 31, the upper and lower parts of the constraint wire rings 31 are fixedly connected with the upper and lower surface layers 32 and 33 respectively; more preferably, the upper and lower fabric layers 32 and 33 are spaced apart by a spacer rod 39, and the constraint wire ring 22 passes through the upper and lower surface layers and is fixed with the spacer rod 39. The middle part of the constraint wire ring 22 crosses and passes through the space between the two lower closed pipe bodies, so as to constrain the upper closed pipe body 11 in the thickness direction above the space between the two lower closed pipe bodies 11.

[0051] More preferably, the upper and lower fabric layers 32 and 33 only contact the upper surface of the upper row of pipe pads 20 and the lower surface of the lower row of pipe pads 20 respectively. The filling strip 27 is arranged between the lower closed pipe bodies.

[0052] The fixed spacing L is greater than the pipe diameter of the closed pipe body 42 filled with air, so that the closed pipe bodies 42 are arranged in small spaces.

[0053] The flexibly outward curved is the use state of the yurt felt, and the flexibly curved is the general meaning in the art, that is, the bending resistance is relatively small; more preferably, the flexibly outward curved is curved along a certain bending radius, and the bending stress is lower than a preset threshold value, and the preset threshold value is the measured value of comfortable bending and fitting in the use scenario. For example, when the air cushion is curved and fitted to a yurt with a diameter of 8 m, the bending resistance is less than that of a 20 mm thick wool felt. The wool felt has the characteristics of softness and toughness, and the fiber has good elasticity and can quickly return to its original state after being bent and folded. The bending resistance of the 20 mm thick wool felt when fitted to a yurt with a diameter of 8 m is the preset threshold value, which is relatively small. The outward curved indicates the bending direction, which is also the general meaning in the art.

[0054] The yurt felt can be rolled into a cylindrical shape when not in use, and can be transported with the yurt along with the pasture by tying it with a rope. The rolled cylindrical shape is the packaging state. When rolled into a cylindrical shape, it can be flexibly bent outward, so it is not necessary to release the gas in the closed tube.

[0055] The lower flexible hinge 12 includes a plurality of soft rope pairs 13, which are alternately and cross-woven between a plurality of spaced lower closed tubes 11. Each pair of soft ropes 13 is crossed at the interval between two adjacent lower closed tubes 11 and then passes over the second lower closed tube 11.

[0056] The upper closed tube 21 is stacked above the interval between two adjacent lower closed tubes 11, ensuring that the length of the contact arc between the upper closed tube 21 and the lower closed tube 1 in the cross section is greater than or equal to a fixed value, to ensure the heat preservation performance of the air cushion.

[0057] Regarding the cross section of the upper / lower closed tube, to reduce the number of intervals of stacked seals and increase the heat insulation and humidity insulation heat preservation capacity, the cross section of the lower closed tube 11 can be a rounded rectangle, i.e. a rectangle with two vertical sides being semicircular arcs; and the cross section of the upper closed tube can be a symmetric figure along the middle vertical axis, which is beneficial to simultaneously sealing the edges of the two lower closed tubes 11.

[0058] Preferably, the cross section of the upper closed tube is circular, and the tube with a circular cross section has the cost advantage of easy manufacturing. Other cross sections with outward convexity on both sides, such as an oval, can also be used. However, the contact between three circular tubes is linear. To change the linear contact into a larger surface contact, the close-fit holder 30 further includes a contact plate 34, the outer surface of the contact plate 34 is symmetrically provided with a left contact arc 35 and a right contact arc 36, and the inner surface is provided with an upper contact arc 37, which is provided with a recess 38, and the lower part of the upper closed tube 21 is embedded in the recess 38 of the contact plate 34, and the left and right contact arcs 35 and 36 are in close contact with the outer circles of the left and right lower closed tubes 11, respectively.

[0059] More preferably, the inner and outer felt layers are integrally connected to the inner and outer surfaces of the air barrier cushion by spraying aerosol, respectively, and the inner and outer felt layers are sheep wool felt or cow hair felt, and the aerosol can penetrate into the interior of the felt, and the connection performance with the surface of the felt is better.

[0060] The air barrier cushion is a surrounding felt, and further includes a plurality of bottom felts, the bottom felts are fixed sector-shaped with a fixed central angle, and the plurality of bottom felts are spliced to form a circular ground of the yurt, the large circular arc end of the bottom felt is flexibly connected to the bottom of the surrounding felt, and a ground buckle is arranged at the splicing position of two adjacent bottom felts, and the ground buckle is fixed to the ground by a ground nail, and after being fixed, the ground buckle is tightly wrapped at the splicing position; the bottom felt is integrally connected to the bottom of the yurt felt by a flexible hinge

[0061] The Mongolian yurt felt has the characteristic of convenient maintenance without disassembly. The air barrier cushion is composed of a plurality of parallel closed pipe bodies. Each upper / lower closed pipe body constitutes a single air chamber. The single closed pipe body does not affect the air barrier performance of other closed pipe bodies when leaking. Moreover, the leaking closed pipe body can be replaced individually. The specific steps are as follows: S1, the leaking closed pipe body is determined by pressing; S2, the upper / lower closed pipe body is provided with a pull-out handle at the end. The handle is clamped by a clamp, and the leaking closed pipe body is pulled out from the flexible hinge 12; S3, the new closed pipe body is inserted into the plurality of pairs of soft ropes 13 of the flexible hinge 12 in the deflated state.

[0062] Because of the air barrier cushion, the thickness of the inner and outer surface layers can be relatively thin, and the total thickness is not more than 15 mm. The surface of the inner surface layer exposed to the interior of the yurt is provided with a pattern, and the surface of the outer surface layer exposed to the outside is provided with a pattern.

[0063] Test test: select 5 layers of traditional wool felt (5*9 mm=45 mm thick) and one layer of Mongolian yurt felt as the skin surrounding the yurt, measure the indoor 4-point thermal conductivity, and obtain the following table 1. The test method of thermal conductivity is steady state method, JTRG-III flat plate heat flow meter is used, and the measurement is carried out according to "determination of thermal resistance and related properties of thermal insulation materials by heat flow meter method" in GB / T10295-2008.

[0064] Table 1 comparison of thermal conductivity of traditional wool felt and Mongolian yurt felt

[0065] Thermal conductivity (w / (m.K)) 1 layer of Mongolian yurt felt (15 mm) 5 layers of traditional wool felt (45 mm) ​ 0.0535 0.0681 ​ 0.0521 0.0653 ​ 0.0514 0.0664 ​ 0.0508 0.0652 均 ]]> ​ 0.0519 0.0663 Total thermal resistance R0 [(m 2 · K) / W] 0.8834 0.6852

[0066] As shown in table 1, the thermal conductivity of the Mongolian yurt felt is still lower than that of the 5 layers of wool felt with a thickness of 45 mm, and the total thermal resistance reaches 0.8834 (m 2 K) / W, the heat preservation performance of the air cushion is obviously better than that of the 5 layers of wool felt, and the thickness is small, the curling volume is small, and the weight is light.

[0067] For the same diameter 12 m standard yurt, using 1 layer of air cushion insulation felt, the air cushion thickness is 10 mm, the inner and outer felt layer thickness is 10 mm, and the total weight is 45 kg. The total weight of 45 mm thick 5 layers of wool felt is 1 / 5 of that of 1 layer of air cushion insulation felt.

[0068] Compared with the prior art, the Mongolian yurt felt with single-sided flexible bending and fitting is formed by the air-filled closed pipe bodies arranged in parallel to form an air barrier cushion. The structure of the air cushion is simple, the manufacturing cost is low, and a plurality of closed pipe bodies cannot leak at the same time. Therefore, the Mongolian yurt felt has excellent maintainability and is durable.

[0069] Example 2

[0070] Improved close-fitting retention 30, other structures are the same as in embodiment 1.

[0071] A one-side flexible bending close-fitting Mongolian yurt felt, comprising

[0072] Lower row pipe pad 10, lower row pipe pad 10 includes a plurality of lower closed pipe body 11 and lower flexible hinge 12, lower closed pipe body 11 axis extends in the length direction with fixed interval L spacing arrangement in the width direction, lower flexible hinge 12 is connected between two adjacent lower closed pipe body 11 into flexible plate shape;

[0073] Upper row pipe pad 20, including a plurality of upper closed pipe body 21, the upper closed pipe body 21 is stacked between two adjacent lower closed pipe body 11 spacing above to seal the interval;

[0074] The lower surface of the lower row pipe pad 10 is inside, and the upper surface of the upper row pipe pad 20 is outside;

[0075] Close-fitting retention 40, the close-fitting retention 40 can reduce the bending stress of the upper closed pipe body 21 when the lower row pipe pad 10 is flexibly bent outward, so that it still closely seals the interval above two adjacent lower closed pipe body 11.

[0076] The upper closed pipe body 21 can reduce the bending stress, which is that the close-fitting retention 40 includes sliding part 41, which can make two adjacent lower closed pipe body 11 slide outward relative to the two wings of the upper closed pipe body 21 to reduce its deflection.

[0077] The air pressure in the upper closed pipe body 21 is less than the air pressure of the lower closed pipe body 11 by at least 0.1 MPa, so that the amount of outward sliding is reduced.

[0078] The upper closed pipe body 21 has a lower pipe body and an upper pipe body, the lower pipe body is flexibly bent due to the lower flexible hinge 12, and the upper pipe body has bending resistance due to bending on both sides, so that the deflection of the upper pipe body along the bending axis W is reduced by the outward sliding of the top surface of the lower closed pipe body relative to the two wings of the upper closed pipe body 21. Deflection is the displacement of the cross-sectional centroid in the direction perpendicular to the beam axis under the action of external force. The upper pipe body is simplified as a beam.

[0079] The sliding part 41 comprises a pair of sliding groove 42 and a pair of sliding plug 43, the pair of sliding groove 42 is symmetrically fixed on the top surface of two adjacent lower closed tube body 11 through upper flexible hinge, the pair of sliding plug 43 is symmetrically fixed on the lower surface of upper closed tube body 21 through upper flexible hinge, specifically fixed on the step part 24, one side wall of the pair of sliding plug 42 is slidingly fitted in the corresponding pair of sliding groove 41; preferably, the pair of sliding groove 41 and the pair of sliding plug 42 are U-shaped in cross section. The guide groove of the pair of sliding groove 41 is closed and flat rectangular in cross section, and the side wall is closed and only provided with an insertion port. The lower closed tube body 11 is outwardly curved to a large angle, so that the pair of sliding plug 42 is inserted into the corresponding pair of sliding groove 41.

[0080] When the yurt felt is outwardly curved, the adjacent lower closed tube body 11 drives the pair of sliding groove 42 to be inwardly folded through the lower flexible hinge 12, and because of the constraint of the upper closed tube body 21, the pair of sliding plug 42 slides out of the pair of sliding groove 41 by a certain distance, at the same time, the upper flexible hinge 23 also makes the bending have a reduced bending stress.

[0081] The upper closed tube body 21 comprises a cross section reducing part 22, the lower tube wall at the minimum cross section of the cross section reducing part 22 is provided with the upper flexible hinge 23, when being bent, the upper closed tube body is outwardly curved through the upper flexible hinge 23 of the cross section reducing part, and the upper tube body is forced to the lower tube body through the upper flexible hinge 23 under the action of the bending moment of the bending force on both sides, and is limitedly bent with bending resistance. The cross section reducing part 22 is symmetrically connected with the step part 24 on both sides of the upper flexible hinge 23; the cross section reducing part 22 comprises two abutting edges 25 close to the step part 24, the abutting edges 25 abut on the top surface of the two lower closed tube bodies 11, so that the space cavity 26 is formed between the cross section reducing part 22 and the upper flexible hinge 12. When the upper closed tube body 21 is bent, the abutting edges 25 do not slide relative to the top surface of the lower closed tube body 11, so that the pair of sliding plug 43 slides in the pair of sliding groove 42, therefore, the surface of the abutting edges 25 can be composed of a material having a relatively large sliding coefficient with the top surface of the lower closed tube body 11. The pair of sliding plug 43 is slidingly arranged in the pair of sliding groove 42, and the top of the pair of sliding plug 43 and the bottom of the pair of sliding groove 42 form a blocking cavity 44.

[0082] The design of the sliding plug 43 and the sliding groove 42 is as follows:

[0083] The sliding plug 43 and the sliding groove 42 are gap fitted, the bottom of the sliding groove 42 is provided with a plurality of air permeable micropores 45, the blocking cavity 44 is communicated with the outside, and the gap and the air in the blocking cavity 44 which does not flow after being bent and fitted make the gap fitting between the upper closed tube body 21 and the lower closed tube body 11 have temperature insulation and cold prevention.

[0084] Alternatively, the blocking cavity 44 is filled with lubricating grease, the lubricating grease enters the gap fitting between the pair of sliding plug 43 and the pair of sliding groove 42 when the pair of sliding plug 43 relatively moves relative to the pair of sliding groove 42, so that the gap fitting between the pair of sliding plug 43 and the pair of sliding groove 42 has temperature insulation and cold prevention.

[0085] More preferably, the upper closed tube body 21 further comprises an elastic bag body 28 which is integrally connected to the stepped portion 24, and a sealing strip 29 is arranged at the joint. The lower half of the stepped portion 24 and the stepped portion 24 are made of hard resin material, and the elastic bag body 28 is embedded in the groove at the end of the stepped portion and is fixed by bonding.

[0086] A single-sided flexible curved and fitted Mongolian yurt felt solves the technical problems of "single-sided flexible curved and fitted along a convex curved surface, relatively low bending stress, moisture and cold insulation capacity with a flat air cushion, light weight, and low manufacturing cost" through the following technical means,

[0087] (1) The upper and lower rows of tube pads are alternately stacked, and the upper tube body seals the gap between the adjacent two tube bodies of the lower row, achieving both heat preservation and flexible fitting.

[0088] The lower row of tube pads 10 is connected by a lower flexible hinge 12 between two adjacent lower closed tube bodies 11, providing a flexible plate-shaped air cushion. The flexible hinge is not temperature-insulating, and external cold air can pass through the flexible hinge to the inside of the barrier air cushion; the upper row of tube pads 20 is stacked at the corresponding gap of the lower row of tube pads 10 to seal the gap.

[0089] A special close-fit retention is designed so that the upper row of tubes is always tightly sealed between two adjacent lower rows of tubes.

[0090] Stacking and sealing make the Mongolian yurt felt have both heat preservation and cold insulation performance and flexible convex bending performance.

[0091] (2) The constraint line ring or sliding part realizes both heat preservation and flexible convex bending.

[0092] Specifically, example one is a plurality of constraint line rings that only apply force to the upper closed tube body 21 in the thickness direction, so that it can tightly seal the gap above two adjacent lower closed tube bodies 11 without affecting the convex bending; example two is that the upper closed tube body 21 moves relative to two adjacent lower closed tube bodies 22 through the sliding part 41 to reduce the bending stress of the upper closed tube body 21. The sliding pair is in the sliding groove pair,

[0093] A single-sided flexible curved and fitted Mongolian yurt felt can be flexibly bent to have good fitting, has excellent heat preservation performance better than 5-layer wool felt, has small thickness, small rolling volume, light weight, low industrial batch manufacturing cost, and good practical value.

Claims

1. A single-sided, flexurally bendable, conformable yurt tarpaulin comprising an air barrier cushion, characterized in that, The air barrier cushion comprises a lower row of tube cushions (10) comprising a plurality of lower closed tube bodies (11) and lower flexible hinges (12), the lower closed tube bodies (11) being arranged in parallel to the width direction along the length direction at a fixed interval L, the lower flexible hinges (12) being connected between two adjacent lower closed tube bodies (11) in a flexible plate shape in a cross-weave manner; an upper row of tube cushions (20) comprising a plurality of upper closed tube bodies (21), the upper closed tube bodies (21) being arranged above two adjacent lower closed tube bodies (11) in a stack manner to seal the space between the two adjacent lower closed tube bodies (11); the lower surface of the lower row of tube cushions (10) is inner, and the upper surface of the upper row of tube cushions (20) is outer; a close-keeping (30, 40) comprising a plurality of constraint wire loops (31), the close-keeping (30, 40) being capable of applying force to the upper closed tube bodies (21) in the thickness direction only when the lower row of tube cushions (10) is flexibly curved outward, so that the upper closed tube bodies (21) can be closely kept above two adjacent lower closed tube bodies (11) to seal the space between the two adjacent lower closed tube bodies (11).

2. A single-sided, flexurally bendable, conformable yurt tarpaulin comprising an air barrier cushion, characterized in that, The air barrier cushion comprises a lower row of tube cushions (10) comprising a plurality of lower closed tube bodies (11) and lower flexible hinges (12), the lower closed tube bodies (11) being arranged in parallel to the width direction along the length direction at a fixed interval L, the lower flexible hinges (12) being connected between two adjacent lower closed tube bodies (11) in a flexible plate shape in a cross-weave manner; an upper row of tube cushions (20) comprising a plurality of upper closed tube bodies (21), the upper closed tube bodies (21) being arranged above two adjacent lower closed tube bodies (11) in a stack manner to seal the space between the two adjacent lower closed tube bodies (11); the lower surface of the lower row of tube cushions (10) is inner, and the upper surface of the upper row of tube cushions (20) is outer; a close-keeping (30, 40) comprising a sliding part (41), the close-keeping (30, 40) being capable of reducing the bending stress of the upper closed tube bodies (21) when the lower row of tube cushions (10) is flexibly curved outward, so that the upper closed tube bodies (21) can be closely kept above two adjacent lower closed tube bodies (11) to seal the space between the two adjacent lower closed tube bodies (11).

3. The unilaterally flexible-bendable attached yurt tarpaulin according to claim 2, characterized in that, The sliding part (41) is capable of making two adjacent lower closed tube bodies (11) slide outward relative to the two wings of the upper closed tube bodies (21) to reduce the deflection thereof.

4. The unilaterally flexible-bendable attached yurt tarpaulin according to claim 2, wherein, The sliding part (41) comprises a pair of sliding grooves (42) and a pair of sliding plugs (43), the pair of sliding grooves (42) being symmetrically fixed to the top surfaces of two adjacent lower closed tube bodies (11), the pair of sliding plugs (43) being symmetrically fixed to the lower surfaces of the upper closed tube bodies (21), and one side wall of the pair of sliding plugs (43) being slidingly fitted in the corresponding sliding groove (42).

5. The unilaterally flexible-bendable attached yurt tarpaulin according to claim 1, wherein, The close holding (30) further comprises an upper fabric layer (32) and a lower fabric layer (33), the upper fabric layer (32) is arranged above the upper pipe mat (20), and the lower fabric layer (33) is arranged below the lower pipe mat (10); the upper closed pipe body (21) is arranged in a plurality of constraint wire rings (31) arranged side by side and alternately with the lower flexible hinge (12), the upper part and the lower part of the constraint wire ring (31) are fixedly connected with the upper fabric layer (32) and the lower fabric layer (33) respectively; the middle part of the constraint wire ring (31) passes through the interval between two adjacent lower closed pipe bodies after crossing, so as to constrain the upper closed pipe body (21) above the interval between the two adjacent lower closed pipe bodies (11) in the thickness direction.

6. The unilaterally flexible-bendable attached yurt tarpaulin according to claim 1, wherein, The lower flexible hinge (12) comprises a plurality of soft rope pairs (13), the plurality of soft rope pairs (13) are alternately and cross-woven between a plurality of spaced-apart lower closed pipe bodies (11); each soft rope pair (13) passes around the adjacent lower closed pipe body (11) after crossing at the interval between the two adjacent lower closed pipe bodies (11).

7. The unilaterally flexible-bendable attached yurt tarpaulin according to claim 1, wherein, The upper closed pipe body (21) is arranged above the interval between the two adjacent lower closed pipe bodies (11), so that the length of the contact arc between the upper closed pipe body (21) and the lower closed pipe body (11) in the cross section is greater than or equal to a fixed value.

8. The unilaterally flexible bendable fitted yurt tarpaulin according to claim 2, characterized in that, The upper closed pipe body (21) comprises a cross-section reducing portion (22), the cross-section reducing portion (22) is provided with an upper flexible hinge (23) at the minimum cross-section, and the cross-section reducing portion (22) is symmetrically connected with a step portion (24) on both sides of the upper flexible hinge (23); the cross-section reducing portion (22) comprises two abutting edges (25) adjacent to the step portion, the abutting edges (25) abut against the top surfaces of the two adjacent lower closed pipe bodies (11), so that the cross-section reducing portion (22) and the lower flexible hinge (12) form a hollow cavity (26).

9. A single-sided flexible bendable Mongolian yurt tarpaulin according to any one of claims 1 to 8, characterized in that, The inner felt layer and the outer felt layer are integrally connected by spraying aerosol on the inner and outer surfaces of the air barrier cushion respectively.

10. The unilaterally flexible bendable Mongolian yurt tarpaulin according to claim 8, characterized in that, The hollow cavity (26) is closed by a cotton plug at both ends.

Images