A curtain structure

Abstract

The present invention discloses a curtain structure, including a curtain box, a main reel, a waterproof curtain, and a curtain-pulling mechanism. The side walls are provided with side grooves, the side grooves are provided with vertical rails, the lower end of the waterproof curtain is provided with a counterweight rod, the curtain-pulling mechanism has a semicircular sleeve, a ring pull line, a plurality of balls, a rotating wheel, and a plurality of ball push blocks, the rotating wheel is fixed with a rotating shaft, a lower groove is provided with a plurality of buffer rubber blocks, the curtain box is provided with a lower seat plate, a vertical slide rod, a self-locking base block, a self-locking rubber block, and a self-locking spring, a wall frame is provided with a windward groove, a windward plate is provided in the windward groove, and a horizontal slide rod is provided on the windward plate, one end of an unlocking rope is connected to the self-locking base block, and the other end of the unlocking rope is connected to a coupling block. The beneficial effect of the present invention is that when needed, the curtain-pulling mechanism can be operated to fully lower the waterproof curtain, thereby achieving functions such as windproof, rainproof, and sunshade. When encountering a situation such as heavy rain and wind and requiring the waterproof curtain to be quickly lowered, the waterproof curtain can also be quickly lowered until it is fully released by pulling down the unlocking rope.

Description

Technical Field

[0001] The present invention belongs to the technical fields of curtains, soft furnishings and smart homes, and in particular relates to a curtain structure. Background Art

[0002] Curtains are made of materials such as cloth, linen, yarn, aluminum, wood, plastic film, and metal. They can provide sunshade and heat insulation, protect against rain and wind, and regulate indoor light. Some windows on balconies, terraces, and exterior walls are also equipped with curtains specifically designed to block wind, rain, and sun. Simply lower the curtains to provide protection. Note: For wind protection, choose an airtight curtain; for rain protection, choose a waterproof curtain; and for sun protection, choose a curtain with low light transmittance. Summary of the Invention

[0003] The present invention provides a curtain structure, which can operate the curtain pulling mechanism to completely lower the waterproof curtain when needed, thereby achieving functions such as windproof, rainproof, and sunshade. When encountering situations such as heavy rain and other situations where the waterproof curtain needs to be lowered quickly, the waterproof curtain can also be quickly lowered until it is fully released into place by pulling down the unlocking rope.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A curtain structure comprises a curtain box arranged on a wall frame, a main reel arranged in the curtain box, a waterproof curtain wound on the main reel, and a curtain pulling mechanism for driving the main reel to rotate;

[0006] The wall frame is surrounded by a top wall, a bottom wall and two side walls. The curtain box is embedded in the top wall. The lower end of the curtain box is open. Side grooves are provided on the side walls. Vertical rails are provided on the side grooves. The upper ends of the vertical rails are located in the curtain box. When the waterproof curtain is fully unfolded: the upper end of the waterproof curtain is fixed to the main reel, and the lower end of the waterproof curtain is provided with a counterweight rod.

[0007] Both ends of the counterweight rod are provided with sliders, which correspond to the vertical rails one by one. The sliders are slidably connected to the corresponding vertical rails. The curtain-pulling mechanism includes a semicircular sleeve fixed to the curtain box and open at the lower end, a ring pull line connected end to end, a plurality of balls arranged on the ring pull line, a rotating wheel arranged in the curtain box and a plurality of ball push blocks arranged on the side wall of the rotating wheel. A rotating shaft rotatably connected to the semicircular sleeve is fixed on the rotating wheel. The rotating shaft is coaxially fixed with the main reel. In the circumferential direction of the rotating wheel: a clamping space for accommodating the balls is formed between two adjacent ball push blocks.

[0008] The bottom wall is provided with a lower groove for accommodating the counterweight rod, the lower end of the vertical rail is in the lower groove, and a number of buffer rubber blocks are provided in the lower groove. The curtain box is provided with a lower seat plate fixed to the curtain box, a vertical sliding rod slidably connected to the lower seat plate, a self-locking base block provided at the upper end of the vertical sliding rod, a self-locking rubber block provided on the self-locking base block and used for pressing the rotating shaft, and a self-locking spring sleeved on the vertical sliding rod. An unlocking rope for driving the self-locking rubber block to leave the rotating shaft is provided on the self-locking base block. The self-locking rubber block, the self-locking base block, the self-locking spring and the lower seat plate are arranged in sequence from top to bottom, the upper end of the self-locking spring is connected to the self-locking base block, and the lower end of the self-locking spring is connected to the lower seat plate;

[0009] One of the side walls is provided with an inward groove connected to the curtain box, the inward groove opens toward the room, the lowest point of the ring pull wire is in the inward groove, a horizontal duct is provided in the inward groove, the unlocking rope passes through the horizontal duct, a windward groove is provided on the wall frame, the windward groove opens toward the outside, a windward plate is provided in the windward groove, a horizontal sliding rod is provided on the windward plate which is slidably connected to the wall frame, the sliding direction of the horizontal sliding rod is parallel to the axis of the horizontal duct, a connecting block is provided on the horizontal sliding rod, one end of the unlocking rope is connected to the self-locking base block, and the other end of the unlocking rope is connected to the connecting block, the windward plate, the horizontal duct and the connecting block are arranged in sequence along the axial direction of the horizontal duct.

[0010] Preferably, the semicircular sleeve is composed of two parallel semicircular plates and an arc plate, and the balls located both in the semicircular sleeve and in the positioning space are in sliding contact with the arc plate. When the pull line is in a circular shape, the balls are evenly distributed along the circumference of the pull line.

[0011] The ball pushing blocks are evenly distributed along the circumference of the rotating wheel, and are provided with external through grooves for the ring pull wires to pass through.

[0012] As a preference, it further comprises a pressure storage tank, a transfer tank and a manual pressure storage pump for inflating the pressure storage tank. The pressure storage tank is connected to the transfer tank via a pressure pipe, and a transfer pressure relief valve is provided on the transfer tank.

[0013] In one side wall: two vertical elastic airbag strips for clamping the waterproof curtain are provided in the side groove, the vertical elastic airbag strips are fixed to the side wall, and the two vertical elastic airbag strips are located on opposite sides of the waterproof curtain;

[0014] The vertical elastic airbag strip is connected to the transfer tank through the airbag air pipe, and a bottom ventilation valve is provided on the pressure pipe. The bottom ventilation valve includes a bottom vertical valve pipe, a bottom inner piston which is slidably sealed with the bottom vertical valve pipe, an upper porous plate provided at the upper end of the bottom vertical valve pipe, and a lower porous plate provided at the lower end of the bottom vertical valve pipe. The bottom vertical valve pipe is provided with a bottom valve inlet connected to the pressure pipe and a bottom valve outlet connected to the pressure pipe. A bottom valve hole is provided on the bottom inner piston, and the sliding direction of the bottom inner piston is vertical. A bottom valve rod is provided on the bottom inner piston, which passes through the upper porous plate. A lower magnetic block in the lower slot is provided on the upper end of the bottom valve rod, and a rod slot is provided on the counterweight rod. An upper magnetic block which is attracted and fixed to the lower magnetic block is provided in the rod slot, and a lower limit body is provided on the lower porous plate.

[0015] When the counterweight rod contacts the buffer rubber block and the lower magnetic block and the upper magnetic block attract and fix each other: the bottom vent valve is in the open state, and the bottom valve inlet, bottom valve hole and bottom valve outlet are connected in sequence;

[0016] When the bottom-drop inner piston contacts the bottom-drop lower limiter: the bottom-drop vent valve is in the closed state, the bottom-drop valve inlet is sealed by the bottom-drop inner piston, and the bottom-drop valve outlet is sealed by the bottom-drop inner piston;

[0017] The pressure pipe is provided with a wind pressure ventilation valve driven by a windward plate. The wind pressure ventilation valve includes a wind pressure horizontal valve pipe, a wind pressure inner piston which cooperates with the wind pressure horizontal valve pipe in a sliding seal, a wind pressure front porous plate arranged at one end of the wind pressure horizontal valve pipe, a wind pressure rear porous plate arranged at the other end of the wind pressure horizontal valve pipe and a wind pressure spring arranged in the wind pressure horizontal valve pipe. The wind pressure horizontal valve pipe is provided with a wind pressure valve inlet connected to the pressure pipe and a wind pressure valve outlet connected to the pressure pipe. The wind pressure inner piston is provided with a wind pressure valve hole. The wind pressure inner piston slides in the opposite direction. Parallel to the moving direction of the windward plate, one end of the wind pressure spring is connected to the wind pressure inner piston, and the other end of the wind pressure spring is connected to the wind pressure rear porous plate. The wind pressure inner piston is provided with a wind pressure valve stem passing through the wind pressure front porous plate, the wind pressure valve stem is connected to the windward plate, the wind pressure front porous plate is provided with a wind pressure front limiter, and the wind pressure rear porous plate is provided with a wind pressure rear limiter. The windward plate, the wind pressure front porous plate, the wind pressure front limiter, the wind pressure inner piston, the wind pressure rear limiter and the wind pressure rear porous plate are arranged in sequence along the moving direction of the windward plate;

[0018] When the wind pressure inner piston contacts the wind pressure front limiter: the wind pressure vent valve is in the closed state, the wind pressure valve inlet is sealed by the wind pressure inner piston, and the wind pressure valve outlet is sealed by the wind pressure inner piston;

[0019] When the wind pressure inner piston contacts the wind pressure rear limiter: the wind pressure vent valve is in the open state, and the wind pressure valve inlet, wind pressure valve hole and wind pressure valve outlet are connected in sequence.

[0020] Preferably, the manual pressure storage pump includes a pressure storage cylinder, a turntable, an eccentric shaft, a dynamic rotating rod, a pressure storage horizontal shaft rotatably connected to the wall frame, an outer wind wheel arranged at one end of the pressure storage horizontal shaft and an inner hand crank arranged at the other end of the pressure storage horizontal shaft. The turntable is coaxially fixed with the pressure storage horizontal shaft. A pressure storage inner piston is provided in the pressure storage cylinder body and is matched with the pressure storage cylinder body in a sliding seal. The pressure storage inner piston divides the pressure storage cylinder body into a pressure storage air chamber and a pressure storage cavity connected to the atmosphere. The pressure storage air chamber is connected to the pressure storage cavity through The pressure storage air pipe is connected to the pressure storage tank, and a pressure storage one-way valve is provided on the pressure storage air pipe. A pressure storage air hole connected to the pressure storage air cavity is provided on the pressure storage cylinder body, and an air intake one-way valve is provided on the pressure storage air hole. A pressure storage relief valve is provided on the pressure storage tank, and a pressure storage inner piston is provided with a pressure storage piston rod passing through the pressure storage cavity. The pressure storage piston rod is hinged to one end of the dynamic rotating rod, and the other end of the dynamic rotating rod is hinged to the eccentric shaft. The eccentric shaft is rotatably connected to the turntable, and an air release valve connected to the transfer tank is provided on the wall frame.

[0021] Preferably, the wall frame is provided with an inner groove, the inner groove opening is facing the room, the transfer tank is provided with a vent pipe, one end of the vent pipe is connected to the transfer tank, and the other end of the vent pipe is connected to the vent valve, the vent valve is located in the inner groove, and the vent valve is a spring return valve.

[0022] The beneficial effects of the present invention are: when necessary, the curtain pulling mechanism can be operated to completely lower the waterproof curtain, thereby achieving functions such as windproof, rainproof, and sunshade. When encountering situations such as strong winds and rainstorms where the waterproof curtain needs to be lowered quickly, the waterproof curtain can also be quickly lowered by pulling down the unlocking rope until it is fully released into place; when a strong wind blows, if there is no one near the present invention, the present invention can automatically release the waterproof curtain to prevent the strong wind from bringing sand, dust, various impurities and even rainwater into the room; the manual pressure storage pump can store pressure manually or automatically using wind power, with a high degree of automation, and can also provide manual operation assistance when needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is another structural schematic diagram of the present invention;

[0025] Figure 3 is a cross-sectional view of the present invention;

[0026] Figure 4 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0028] Figure 6 yes Figure 3 Enlarged view of point C in the middle;

[0029] Figure 7 yes Figure 3 Enlarged view of point D in the middle;

[0030] Figure 8 yes Figure 3 Enlarged view of point E in the middle;

[0031] Figure 9 yes Figure 7 Enlarged view of point F in the middle;

[0032] Figure 10 It is a partial structural schematic diagram of the present invention;

[0033] Figure 11 It is a structural schematic diagram of the runner of the present invention;

[0034] Figure 12 It is a structural schematic diagram of the transverse conduit of the present invention;

[0035] Figure 13 It is a structural schematic diagram of the pressure storage tank of the present invention;

[0036] Figure 14 It is a structural schematic diagram of the transfer tank of the present invention;

[0037] Figure 15 yes Figure 13 Enlarged view of point G in the middle;

[0038] Figure 16 yes Figure 14 Enlarged view of point H in the middle;

[0039] Figure 17 It is a structural schematic diagram of the manual pressure accumulator pump of the present invention.

[0040] Reference numerals: wall frame 1, lower groove 1a, top wall 1.1, bottom wall 1.2, side wall 1.3, inward groove 1.3a, vertical rail 11, buffer rubber block 12, horizontal guide tube 13, windward plate 14, horizontal slide bar 15, connecting block 16, air release valve 17, curtain box 2, main reel 3, waterproof curtain 31, counterweight rod 32, slider 33, semicircular sleeve 41, semicircular plate 41.1, arc plate 41.2, ring pull wire 42, ball 43, rotating wheel 44, ball pusher 45, locking space 45a, external slot 45b, rotating shaft 46, lower seat plate 51, vertical slide bar 52, self-locking base block 53, self-locking rubber block 54, self-locking spring 55, unlocking pull rope 56, pressure accumulator 61, pressure accumulator air pipe 61.1, transfer tank 62, manual pressure accumulator pump 63, pressure accumulator cylinder 63.1, pressure accumulator air chamber 63.1a, pressure accumulator cavity 63. 1b, pressure storage inner piston 63.11, pressure storage piston rod 63.12, rotary disk 63.2, eccentric shaft 63.3, dynamic rotating rod 63.4, pressure storage horizontal axis 63.5, outer wind wheel 63.6, inner hand crank 63.7, pressure transmission pipe 64, vertical elastic airbag strip 65, bottom drop vertical valve pipe 71, bottom drop valve inlet 71a, bottom drop valve outlet 71b, bottom drop inner piston 72, bottom drop valve hole 72a, bottom drop upper Porous plate 73, bottom-dropped porous plate 74, lower magnetic block 75, upper magnetic block 76, bottom-dropped lower limit body 77, bottom-dropped valve stem 78, wind pressure horizontal valve pipe 81, wind pressure valve inlet 81a, wind pressure valve outlet 81b, wind pressure inner piston 82, wind pressure valve hole 82a, wind pressure front porous plate 83, wind pressure rear porous plate 84, wind pressure spring 85, wind pressure valve stem 86, wind pressure front limit body 87, wind pressure rear limit body 88. DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] like Figures 1 to 17 As shown,

[0043] A curtain structure includes a curtain box 2 mounted on a wall frame 1, a main reel 3 mounted in the curtain box, a waterproof curtain 31 wound around the main reel, and a curtain pulling mechanism for driving the main reel to rotate.

[0044] The wall frame is formed by a top wall 1.1, a bottom wall 1.2 and two side walls 1.3. The curtain box is embedded in the top wall. The lower end of the curtain box is open. Side grooves are provided on the side walls. Vertical rails 11 are provided on the side grooves. The upper ends of the vertical rails are located in the curtain box. When the waterproof curtain is fully unfolded: the upper end of the waterproof curtain is fixed to the main reel, and the lower end of the waterproof curtain is provided with a counterweight rod 32.

[0045] Both ends of the counterweight rod are provided with sliders 33, which correspond to the vertical rails one by one. The sliders are slidably connected to the corresponding vertical rails. The curtain pulling mechanism includes a semicircular sleeve 41 fixed to the curtain box and open at the lower end, a ring pull line 42 connected end to end, a plurality of balls 43 provided on the ring pull line, a rotating wheel 44 provided in the curtain box and a plurality of ball push blocks 45 provided on the side wall of the rotating wheel. A rotating shaft 46 rotatably connected to the semicircular sleeve is fixed on the rotating wheel. The rotating shaft is coaxially fixed with the main reel. In the circumferential direction of the rotating wheel, a clamping space 45a for accommodating the balls is formed between two adjacent ball push blocks.

[0046] The bottom wall is provided with a lower groove 1a for accommodating the counterweight rod, the lower end of the vertical rail is in the lower groove, and a number of buffer rubber blocks 12 are provided in the lower groove. The curtain box is provided with a lower seat plate 51 fixed to the curtain box, a vertical sliding rod 52 slidably connected to the lower seat plate, a self-locking base block 53 provided at the upper end of the vertical sliding rod, a self-locking rubber block 54 provided on the self-locking base block and used to press the rotating shaft, and a self-locking spring 55 sleeved on the vertical sliding rod. The self-locking base block is provided with an unlocking rope 56 for driving the self-locking rubber block to leave the rotating shaft. The self-locking rubber block, the self-locking base block, the self-locking spring and the lower seat plate are arranged in sequence from top to bottom, the upper end of the self-locking spring is connected to the self-locking base block, and the lower end of the self-locking spring is connected to the lower seat plate;

[0047] One of the side walls is provided with an inward groove 1.3a connected to the curtain box, the inward groove opening faces the room, the lowest point of the ring pull wire is in the inward groove, the lower end of the unlocking rope is in the inward groove, a transverse duct 13 is provided in the inward groove, the unlocking rope passes through the transverse duct, a windward groove is provided on the wall frame, the windward groove opening faces the outside, a windward plate 14 is provided in the windward groove, a transverse sliding rod 15 slidingly connected to the wall frame is provided on the windward plate, the sliding direction of the transverse sliding rod is parallel to the axis of the transverse duct, a connecting block 16 is provided on the transverse sliding rod, one end of the unlocking rope is connected to the self-locking base block, and the other end of the unlocking rope is connected to the connecting block. The windward plate, transverse duct and connecting block are arranged in sequence along the axial direction of the transverse duct.

[0048] Normally, the curtain fabric (i.e., waterproof curtain) is fully wound around the main reel, with the counterweight rod positioned within the curtain box. This ensures optimal lighting and ventilation. To lower the curtain, the pull cord is pulled. The balls on the cord that are within the designated spaces rotate the ball pusher, which in turn rotates the wheel. This, in turn, drives the main reel via the shaft (defined as forward rotation; reverse rotation is the opposite of forward rotation). The curtain is gradually lowered (released) from the main reel, while the counterweight rod gradually descends until it enters the lower slot and contacts the rubber buffer. The curtain is now fully released, providing wind, rain, and sun protection.

[0049] When the waterproof curtain needs to be rolled up, pull the ring wire to drive the main reel to reverse, and the waterproof curtain is continuously wound onto the main reel (the waterproof curtain rises). At the same time, the counterweight rod gradually rises until the counterweight rod reaches the curtain box. At this time, the waterproof curtain is rolled into place.

[0050] Normally, the self-locking spring presses the self-locking base block and the self-locking rubber block against the rotating shaft (the self-locking rubber block presses the rotating shaft and locks it by friction), so the rotating shaft and the main reel will not rotate. Only when the user pulls the ring cable to drive the rotating wheel can the rotating shaft and the main reel be driven to rotate through the rotating wheel, thereby lowering or raising the waterproof curtain.

[0051] When the waterproof curtain needs to be lowered quickly due to sudden rain, wind or other factors, the unlocking rope can be pulled down to drive the self-locking base block and self-locking rubber block to leave the rotating shaft. Under the action of gravity, the counterweight rod falls and the waterproof curtain is quickly lowered until it is fully released into place.

[0052] When a strong wind suddenly hits, if the wind is strong toward the indoor direction, then even if there is no one near the present invention (for example, the present invention is set on the balcony of a home, and no one is at home when a strong wind suddenly hits), the present invention can automatically realize the rapid release of the waterproof curtain to prevent the strong wind from bringing dust, various impurities and even rainwater into the room (when wind and rain accompany each other, strong winds can easily bring rainwater into the room). The specific process is as follows: when the strong wind blows the windward plate inward (indicating that the wind is strong toward the indoor direction), the windward plate pulls the unlocking rope through the horizontal sliding rod and the connecting block, so that the part of the unlocking rope in the horizontal duct moves toward the side away from the windward plate, and the upper end of the unlocking rope moves downward, thereby driving the self-locking base block and the self-locking rubber block to leave the rotating shaft. Under the action of gravity, the counterweight rod falls, and the waterproof curtain is quickly lowered until it is completely released into place.

[0053] The semicircular sleeve is composed of two parallel semicircular plates 41.1 and an arc plate 41.2. The balls located in the semicircular sleeve and in the positioning space are in sliding contact with the arc plate. When the ring pull line is in a circular shape, the balls are evenly distributed along the circumference of the ring pull line.

[0054] The ball pushing blocks are evenly distributed along the circumference of the rotating wheel, and are provided with outer through grooves 45b for the ring pull wire to pass through.

[0055] It also includes a pressure storage tank 61, a transfer tank 62 and a manual pressure storage pump 63 for inflating the pressure storage tank. The pressure storage tank is connected to the transfer tank through a pressure pipe 64. The transfer tank is provided with a transfer pressure relief valve.

[0056] In one side wall: two vertical elastic airbag strips 65 for clamping the waterproof curtain are provided in the side groove, the vertical elastic airbag strips are fixed to the side wall, and the two vertical elastic airbag strips are located on opposite sides of the waterproof curtain;

[0057] The vertical elastic airbag strip is connected to the transfer tank through the airbag air pipe. A bottom ventilation valve is provided on the pressure pipe. The bottom ventilation valve includes a bottom vertical valve pipe 71, a bottom inner piston 72 that is slidably sealed with the bottom vertical valve pipe, an upper bottom porous plate 73 provided at the upper end of the bottom vertical valve pipe, and a bottom bottom porous plate 74 provided at the lower end of the bottom vertical valve pipe. The bottom vertical valve pipe is provided with a bottom valve inlet 71a connected to the pressure pipe and a bottom valve outlet 71b connected to the pressure pipe. The bottom inner piston is provided with a bottom valve hole 72a. The sliding direction of the bottom inner piston is vertical. The bottom inner piston is provided with a bottom valve rod 78 that passes through the bottom upper porous plate. The upper end of the bottom valve rod is provided with a lower magnetic block 75 in the lower groove. The counterweight rod is provided with a rod groove. The rod groove is provided with an upper magnetic block 76 that is attracted and fixed to the lower magnetic block. The bottom porous plate is provided with a bottom lower limit body 77.

[0058] When the counterweight rod contacts the buffer rubber block and the lower magnetic block and the upper magnetic block attract and fix each other: the bottom vent valve is in the open state, and the bottom valve inlet, bottom valve hole and bottom valve outlet are connected in sequence;

[0059] When the bottom-drop inner piston contacts the bottom-drop lower limiter: the bottom-drop vent valve is in the closed state, the bottom-drop valve inlet is sealed by the bottom-drop inner piston, and the bottom-drop valve outlet is sealed by the bottom-drop inner piston;

[0060] The pressure pipe is provided with a wind pressure ventilation valve driven by a windward plate, which includes a wind pressure horizontal valve pipe 81, a wind pressure inner piston 82 which is in sliding sealing cooperation with the wind pressure horizontal valve pipe, a wind pressure front porous plate 83 provided at one end of the wind pressure horizontal valve pipe, a wind pressure rear porous plate 84 provided at the other end of the wind pressure horizontal valve pipe and a wind pressure spring 85 provided in the wind pressure horizontal valve pipe. The wind pressure horizontal valve pipe is provided with a wind pressure valve inlet 81a connected to the pressure pipe and a wind pressure valve outlet 81b connected to the pressure pipe, and the wind pressure inner piston is provided with a wind pressure valve hole 82a. The sliding direction of the inner piston is parallel to the moving direction of the windward plate. One end of the wind pressure spring is connected to the wind pressure inner piston, and the other end of the wind pressure spring is connected to the wind pressure rear porous plate. The wind pressure inner piston is provided with a wind pressure valve stem 86 that passes through the wind pressure front porous plate. The wind pressure valve stem is connected to the windward plate. The wind pressure front porous plate is provided with a wind pressure front limiter 87, and the wind pressure rear porous plate is provided with a wind pressure rear limiter 88. The windward plate, the wind pressure front porous plate, the wind pressure front limiter, the wind pressure inner piston, the wind pressure rear limiter and the wind pressure rear porous plate are arranged in sequence along the moving direction of the windward plate.

[0061] When the wind pressure inner piston contacts the wind pressure front limiter: the wind pressure vent valve is in the closed state, the wind pressure valve inlet is sealed by the wind pressure inner piston, and the wind pressure valve outlet is sealed by the wind pressure inner piston;

[0062] When the wind pressure inner piston contacts the wind pressure rear limiter: the wind pressure vent valve is in the open state, and the wind pressure valve inlet, wind pressure valve hole and wind pressure valve outlet are connected in sequence.

[0063] As mentioned above, when a sudden strong wind strikes, if the wind is strong toward the interior of the room, the present invention can automatically and quickly release the waterproof curtain, even if no one is nearby, to prevent the strong wind from bringing dust, various impurities, and even rainwater into the room. However, this also presents another problem: the strong wind constantly blows on the waterproof curtain, causing it to vibrate continuously, making it vulnerable to damage. Furthermore, the strong wind can also enter the room through the gaps between the side edges of the waterproof curtain and the side grooves. To address this, the present invention provides two vertical elastic airbag strips in each side groove. When the waterproof curtain is released into place, the two vertical elastic airbag strips in each side groove will inflate and clamp the inner and outer sides of the waterproof curtain. This not only stabilizes the waterproof curtain and greatly reduces its vibration, but also minimizes the strong wind from entering the room through the gaps between the side edges of the waterproof curtain and the side grooves. The specific implementation method is as follows: Normally, the bottom vent valve and the wind pressure vent valve are both in the closed state, and the pressure pipe is blocked. When strong winds blow the windward plate inward, the windward plate drives the wind pressure inner piston to move toward the wind pressure rear limiter through the wind pressure valve stem until the wind pressure inner piston contacts the wind pressure rear limiter. At this time, the wind pressure vent valve is in the open state, and the wind pressure valve inlet, wind pressure valve hole and wind pressure valve outlet are connected in sequence. When the waterproof curtain is released into place, the lower magnetic block on the counterweight rod will attract the lower magnetic block on the upper end of the bottom valve stem, and the lower magnetic block drives the bottom valve stem to move. The inner piston moves upward until the lower magnetic block contacts the upper magnetic block. At this time, the bottom vent valve is in the open state, and the bottom valve inlet, bottom valve hole and bottom valve outlet are connected in sequence. In this way, the pressure pipe is "ventilated", and part of the gas (relatively high pressure) in the pressure storage tank will enter the vertical elastic airbag strips through the pressure pipe and the transfer tank. The vertical elastic airbag strips bulge and clamp the fully released waterproof curtain from both sides, which plays a role in fixing the waterproof curtain, reducing its shaking, and preventing strong wind from entering the room through the gap between the side of the waterproof curtain and the side groove.

[0064] The function of the transfer pressure relief valve is to: once the vertical elastic airbags have fully inflated, if there is still gas in the pressure storage tank that continues to flow into the transfer tank, this excess gas does not need to and should not enter the vertical elastic airbags (as it may cause the vertical elastic airbags to burst). This excess gas can be discharged through the transfer pressure relief valve, thereby relieving and controlling the pressure (the pressure relief value can be set as needed). After the strong winds pass, if you want to raise the waterproof curtain again, simply operate the bleed valve to deflate the vertical elastic airbags, allowing some of the gas in the vertical elastic airbags to be discharged through the transfer tank and the bleed valve, and then raise the waterproof curtain again.

[0065] The manual pressure accumulator pump comprises a pressure accumulator cylinder 63.1, a turntable 63.2, an eccentric shaft 63.3, a movable rotating rod 63.4, a pressure accumulator horizontal shaft 63.5 rotatably connected to the wall frame, an outer wind wheel 63.6 arranged at one end of the pressure accumulator horizontal shaft, and an inner hand crank 63.7 arranged at the other end of the pressure accumulator horizontal shaft. The turntable is coaxially fixed with the pressure accumulator horizontal shaft. A pressure accumulator inner piston 63.11 is provided in the pressure accumulator cylinder and is in sliding sealing cooperation with the pressure accumulator cylinder. The pressure accumulator inner piston divides the pressure accumulator cylinder into a pressure accumulator air chamber 63.1a and a pressure accumulator air chamber 63.1a connected to the atmosphere. Cavity 63.1b, the pressure storage air cavity is connected to the pressure storage tank through the pressure storage air pipe 61.1, the pressure storage air pipe is provided with a pressure storage one-way valve, the pressure storage cylinder is provided with a pressure storage air hole connected to the pressure storage air cavity, the pressure storage air hole is provided with an air intake one-way valve, the pressure storage tank is provided with a pressure storage relief valve, the pressure storage inner piston is provided with a pressure storage piston rod 63.12 passing through the pressure storage cavity, the pressure storage piston rod is hinged to one end of the dynamic rotating rod, the other end of the dynamic rotating rod is hinged to the eccentric shaft, the eccentric shaft is rotatably connected to the turntable, and the wall frame is provided with an air release valve 17 connected to the transfer tank.

[0066] The pressure accumulator pump can be operated manually or automatically by wind. As the turntable rotates, the eccentric shaft and the rotating rod drive the pressure accumulator piston rod and the inner piston back and forth. If the pressure accumulator cavity decreases during this movement, some of the gas in the cavity enters the pressure accumulator tank through the pressure accumulator pipe. If the cavity increases during this movement, external gas enters the pressure accumulator tank through the air inlet check valve. If the pressure in the pressure accumulator tank is already sufficient, and any further gas enters the cavity, the pressure relief valve automatically releases the pressure (the pressure relief value can be set as needed). The turntable can be rotated manually by turning the inner crank handle, or by wind blowing the outer impeller.

[0067] The wall frame is provided with an inner groove, the inner groove opening faces the room, and the transfer tank is provided with a vent pipe, one end of the vent pipe is connected to the transfer tank, and the other end of the vent pipe is connected to the vent valve, which is located in the inner groove and is a spring return valve.

[0068] The advantage of the spring return valve is that it can be automatically reset, so when the user no longer operates the air release valve in the open state, the air release valve can automatically reset to return to the closed state.

Claims

1. A curtain structure, characterized in that: It includes a curtain box arranged on a wall frame, a main reel arranged in the curtain box, a waterproof curtain wound on the main reel, and a curtain pulling mechanism for driving the main reel to rotate; The wall frame is surrounded by a top wall, a bottom wall and two side walls. The curtain box is embedded in the top wall. The lower end of the curtain box is open. Side grooves are provided on the side walls. Vertical rails are provided on the side grooves. The upper ends of the vertical rails are located in the curtain box. When the waterproof curtain is fully unfolded: the upper end of the waterproof curtain is fixed to the main reel, and the lower end of the waterproof curtain is provided with a counterweight rod. Both ends of the counterweight rod are provided with sliders, which correspond to the vertical rails one by one. The sliders are slidably connected to the corresponding vertical rails. The curtain-pulling mechanism includes a semicircular sleeve fixed to the curtain box and open at the lower end, a ring pull line connected end to end, a plurality of balls arranged on the ring pull line, a rotating wheel arranged in the curtain box and a plurality of ball push blocks arranged on the side wall of the rotating wheel. A rotating shaft rotatably connected to the semicircular sleeve is fixed on the rotating wheel. The rotating shaft is coaxially fixed with the main reel. In the circumferential direction of the rotating wheel: a clamping space for accommodating the balls is formed between two adjacent ball push blocks. The bottom wall is provided with a lower groove for accommodating the counterweight rod, the lower end of the vertical rail is in the lower groove, and a number of buffer rubber blocks are provided in the lower groove. The curtain box is provided with a lower seat plate fixed to the curtain box, a vertical sliding rod slidably connected to the lower seat plate, a self-locking base block provided at the upper end of the vertical sliding rod, a self-locking rubber block provided on the self-locking base block and used for pressing the rotating shaft, and a self-locking spring sleeved on the vertical sliding rod. An unlocking rope for driving the self-locking rubber block to leave the rotating shaft is provided on the self-locking base block. The self-locking rubber block, the self-locking base block, the self-locking spring and the lower seat plate are arranged in sequence from top to bottom, the upper end of the self-locking spring is connected to the self-locking base block, and the lower end of the self-locking spring is connected to the lower seat plate; One of the side walls is provided with an inward groove connected to the curtain box, the inward groove opens toward the room, the lowest point of the ring pull wire is in the inward groove, a horizontal duct is provided in the inward groove, the unlocking rope passes through the horizontal duct, a windward groove is provided on the wall frame, the windward groove opens toward the outside, a windward plate is provided in the windward groove, a horizontal sliding rod is provided on the windward plate which is slidably connected to the wall frame, the sliding direction of the horizontal sliding rod is parallel to the axis of the horizontal duct, a connecting block is provided on the horizontal sliding rod, one end of the unlocking rope is connected to the self-locking base block, and the other end of the unlocking rope is connected to the connecting block, the windward plate, the horizontal duct and the connecting block are arranged in sequence along the axial direction of the horizontal duct.

2. A curtain structure according to claim 1, characterized in that: The semicircular sleeve is composed of two parallel semicircular plates and an arc plate. The balls located in the semicircular sleeve and the positioning space are in sliding contact with the arc plate. When the pull line is in a circular shape, the balls are evenly distributed along the circumference of the pull line. The ball pushing blocks are evenly distributed along the circumference of the rotating wheel, and are provided with external through grooves for the ring pull wires to pass through.

3. A curtain structure according to claim 1, characterized in that: It also includes a pressure storage tank, a transfer tank and a manual pressure storage pump for inflating the pressure storage tank. The pressure storage tank is connected to the transfer tank through a pressure pipe. The transfer tank is provided with a transfer pressure relief valve. In one side wall: two vertical elastic airbag strips for clamping the waterproof curtain are provided in the side groove, the vertical elastic airbag strips are fixed to the side wall, and the two vertical elastic airbag strips are located on opposite sides of the waterproof curtain; The vertical elastic airbag strip is connected to the transfer tank through the airbag air pipe, and a bottom ventilation valve is provided on the pressure pipe. The bottom ventilation valve includes a bottom vertical valve pipe, a bottom inner piston which is slidably sealed with the bottom vertical valve pipe, an upper porous plate provided at the upper end of the bottom vertical valve pipe, and a lower porous plate provided at the lower end of the bottom vertical valve pipe. The bottom vertical valve pipe is provided with a bottom valve inlet connected to the pressure pipe and a bottom valve outlet connected to the pressure pipe. A bottom valve hole is provided on the bottom inner piston, and the sliding direction of the bottom inner piston is vertical. A bottom valve rod is provided on the bottom inner piston, which passes through the upper porous plate. A lower magnetic block in the lower slot is provided on the upper end of the bottom valve rod, and a rod slot is provided on the counterweight rod. An upper magnetic block which is attracted and fixed to the lower magnetic block is provided in the rod slot, and a lower limit body is provided on the lower porous plate. When the counterweight rod contacts the buffer rubber block and the lower magnetic block and the upper magnetic block attract and fix each other: the bottom vent valve is in the open state, and the bottom valve inlet, bottom valve hole and bottom valve outlet are connected in sequence; When the bottom-drop inner piston contacts the bottom-drop lower limiter: the bottom-drop vent valve is in the closed state, the bottom-drop valve inlet is sealed by the bottom-drop inner piston, and the bottom-drop valve outlet is sealed by the bottom-drop inner piston; The pressure pipe is provided with a wind pressure ventilation valve driven by a windward plate. The wind pressure ventilation valve includes a wind pressure horizontal valve pipe, a wind pressure inner piston which cooperates with the wind pressure horizontal valve pipe in a sliding seal, a wind pressure front porous plate arranged at one end of the wind pressure horizontal valve pipe, a wind pressure rear porous plate arranged at the other end of the wind pressure horizontal valve pipe and a wind pressure spring arranged in the wind pressure horizontal valve pipe. The wind pressure horizontal valve pipe is provided with a wind pressure valve inlet connected to the pressure pipe and a wind pressure valve outlet connected to the pressure pipe. The wind pressure inner piston is provided with a wind pressure valve hole. The wind pressure inner piston slides in the opposite direction. Parallel to the moving direction of the windward plate, one end of the wind pressure spring is connected to the wind pressure inner piston, and the other end of the wind pressure spring is connected to the wind pressure rear porous plate. The wind pressure inner piston is provided with a wind pressure valve stem passing through the wind pressure front porous plate, the wind pressure valve stem is connected to the windward plate, the wind pressure front porous plate is provided with a wind pressure front limiter, and the wind pressure rear porous plate is provided with a wind pressure rear limiter. The windward plate, the wind pressure front porous plate, the wind pressure front limiter, the wind pressure inner piston, the wind pressure rear limiter and the wind pressure rear porous plate are arranged in sequence along the moving direction of the windward plate; When the wind pressure inner piston contacts the wind pressure front limiter: the wind pressure vent valve is in the closed state, the wind pressure valve inlet is sealed by the wind pressure inner piston, and the wind pressure valve outlet is sealed by the wind pressure inner piston; When the wind pressure inner piston contacts the wind pressure rear limiter: the wind pressure vent valve is in the open state, and the wind pressure valve inlet, wind pressure valve hole and wind pressure valve outlet are connected in sequence.

4. A curtain structure according to claim 3, characterized in that: The manual pressure storage pump includes a pressure storage cylinder, a turntable, an eccentric shaft, a dynamic rotating rod, a pressure storage horizontal shaft connected to the wall frame, an outer wind wheel arranged at one end of the pressure storage horizontal shaft and an inner hand crank arranged at the other end of the pressure storage horizontal shaft. The turntable is coaxially fixed with the pressure storage horizontal shaft. A pressure storage inner piston is provided in the pressure storage cylinder body and is matched with the pressure storage cylinder body in a sliding seal. The pressure storage inner piston divides the pressure storage cylinder body into a pressure storage air chamber and a pressure storage cavity connected to the atmosphere. The pressure storage air chamber is connected to the pressure storage air chamber by the pressure storage air chamber. The pipe is connected to the pressure storage tank, a pressure storage one-way valve is provided on the pressure storage air pipe, a pressure storage air hole connected to the pressure storage air cavity is provided on the pressure storage cylinder, an air intake one-way valve is provided on the pressure storage air hole, a pressure storage relief valve is provided on the pressure storage tank, a pressure storage inner piston is provided with a pressure storage piston rod passing through the pressure storage cavity, the pressure storage piston rod is hinged to one end of the dynamic rotating rod, the other end of the dynamic rotating rod is hinged to the eccentric shaft, the eccentric shaft is rotatably connected to the turntable, and an air release valve connected to the transfer tank is provided on the wall frame.

5. A curtain structure according to claim 3, characterized in that: The wall frame is provided with an inner groove, the inner groove opening faces the room, and the transfer tank is provided with a vent pipe, one end of the vent pipe is connected to the transfer tank, and the other end of the vent pipe is connected to the vent valve, which is located in the inner groove and is a spring return valve.

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