阅读说明：本技术 触点滑动伸缩风扇叶片 (Contact sliding telescopic fan blade ) 是由 毛永波 于 2020-03-16 设计创作，主要内容包括：触点滑动伸缩风扇叶片,包括：多个触点滑块和最少两级限位卡止搭扣；特征是：多个触点滑块设置在伸缩扇叶的表面和滑道上触滑扇叶；限位卡止搭扣连接在每节伸缩扇叶滑道一端的内侧和滑道另一端的外侧并分别最少直线阵列二个,形成最少一级卡扣二级防脱；套管扇叶一端横截面封塞加强扇叶不变形防脱扣；扇叶用墩子、坑槽或T型筋减少摩擦并加强抗弯力,塑料、橡胶或石墨触点滑块和扇叶粘附润滑剂或石墨粉滑触扇叶减少摩擦,条形触点滑块外凸或内凸触滑并清洁扇叶；扇叶连接防脱保险,多级卡扣防脱,保险索防脱,脱扣自动关闭电源,加大扇叶伸缩范围无须加大灯饰直径,灵活搭配灯饰。(A contact sliding telescoping fan blade comprising: a plurality of contact sliders and at least two stages of limiting stop hasps; is characterized in that: the contact sliders are arranged on the surfaces of the telescopic fan blades and on the slide ways to contact the telescopic fan blades; the limiting clamping hasp is connected to the inner side of one end of each section of telescopic fan blade slideway and the outer side of the other end of each slideway, and at least two linear arrays are arranged respectively to form at least one primary buckle and two-stage anti-falling; the cross section of one end of the sleeve fan blade is sealed to strengthen the fan blade to prevent deformation and release; the fan blades are reduced in friction and enhanced in bending resistance by piers, pits or T-shaped ribs, the plastic, rubber or graphite contact sliding blocks and the fan blades are adhered with lubricant or graphite powder to slide and contact the fan blades to reduce friction, and the strip-shaped contact sliding blocks protrude outwards or protrude inwards to slide and clean the fan blades; the fan blade is connected with an anti-drop safety, the multi-stage buckle is anti-drop, the safety cable is anti-drop, the power supply is automatically turned off by tripping, the expansion range of the fan blade is enlarged, the diameter of the lamp decoration is not required to be enlarged, and the lamp decoration is flexibly matched.)

1. A contact sliding telescoping fan blade comprising: a plurality of contact sliding blocks (2) and at least two stages of limiting clamping buckles (3); the method is characterized in that: the contact sliding blocks (2) are arranged on the surfaces of the telescopic fan blades (1) and on the slide ways to contact and slide the telescopic fan blades (1); the limiting clamping buckles (3) are fixedly connected to the inner side of one end of each section of telescopic fan blade slide way and the outer side of the other end of the slide way and are respectively provided with at least two linear arrays, so that at least one-stage buckle secondary anti-falling is formed; the contact sliding block (2) is fixedly connected with the limit stop hasp (3) to slide on the contact fan blade;

the telescopic fan blade (1) is a sleeve fan blade formed by coaxially sliding, telescoping and sleeving a plurality of large and small sleeves, and the inner side of one end of the sleeve and the outer side of the other end of the sleeve are respectively provided with a limiting stop hasp (3) for limiting and telescoping; or the telescopic fan blade (1) is a plate fan blade formed by connecting a plurality of plate blocks in a sliding and telescopic manner through buckles, the two sides of each plate block are provided with buckle slide ways for stretching, and one side of one end of each plate block and the other side of the other end of each plate block are respectively provided with a limiting and stopping buckle (3) for limiting and stretching; or the multi-section sleeve fan blade mixed plate fan blade is a tube plate mixed fan blade formed by sleeving a section of plate fan blade on the tail end section of the multi-section sleeve fan blade;

the limit stop hasp (3) is an additional fastener (31) and is fixedly connected to the inner side of a slideway at one end of the telescopic fan blade (1) and the outer side of the slideway at the other end by the additional fastener (31); or the limit stop hasp (3) is a bevel (32), a curled edge (33), a convex position (34), a concave position (35) or a hole (30) of a fan blade original; the curled edge (33) is formed by an outer curled edge (33a) and an inner curled edge (33b) at two ends of a telescopic opening of the wind blowing surface and the leeward surface of the sleeve fan blade or the plate fan blade respectively, so that a curled edge limiting and clamping hasp is formed, and the shaping strength of the fan blade is transversely enhanced;

the contact sliding block (2) is a slideway outer boss sliding block (2A) which is connected to one end of the sleeve fan blade or the plate fan blade and is provided with an outer boss contact sliding sleeve to be connected with the inner wall of the slideway of the sleeve fan blade or the plate fan blade in a sliding and stretching mode, so that friction force and noise are reduced;

the contact sliding block (2) is a slideway inner boss sliding block (2B) which is connected to the other end of the sleeve fan blade or the plate fan blade and is provided with an inner boss contact sliding sleeve to be sleeved with the outer wall of the slideway of the sleeve fan blade or the plate fan blade to slide and stretch, so that friction and noise are reduced;

the contact sliding block (2) is made into a spherical sliding block or a conical sliding block (2d), and a plurality of fixing buckles, gluing, riveting or welding are arranged on holes (30) on the inner side and the outer side of the wind blowing surface and the leeward surface at one end of the fan blade to contact the fan blade;

the contact sliding block (2) is used for contacting and sliding the fan blades by a pier (36) of the fan blade original piece; the piers (36) are arrayed on the fan blade surface;

or the contact sliding block (2) is a pit groove (37) of a fan blade original part to contact the sliding fan blade; the pit grooves (37) are axially arranged along the extension direction of the fan blades and are arrayed on the surfaces of the fan blades to strengthen the bending resistance of the fan blades;

or the contact sliding block (2) is a T-shaped rib (38) of a fan blade original piece for contacting the sliding fan blade; the T-shaped ribs (38) are arranged along the telescopic axial direction of the fan blades and are arrayed on the surfaces of the fan blades to strengthen the bending resistance of the fan blades;

the contact sliding block (2) is made into a strip-shaped sliding block for fixing, buckling, gluing, riveting or welding at two ends of the fan blade, the strip-shaped sliding block at one end is outwards convex to contact with the sliding sleeve and is connected with the inner wall surface of the fan blade in a sliding and stretching mode and is cleaned, and the strip-shaped sliding block at the other end is inwards convex to contact with the sliding sleeve and is internally connected with the outer wall surface of the fan blade in a sliding and stretching mode;

the boss contact of the inner boss sliding block (2B) or the outer boss sliding block (2A) is arc-shaped, inclined pointed or plane; (ii) a

The multiple sections of large and small sleeves of the telescopic fan blades (1) are cambered straight tubes; the cambered surface straight barrel is a parallel cambered surface straight barrel with a cambered wind blowing surface parallel to a cambered leeward surface; or the cambered straight barrel is a crescent cambered straight barrel with an arc wind blowing surface and an arc leeward surface which are not parallel;

or the multiple sections of large and small sleeves of the telescopic fan blades (1) are angle straight tubes; the wind blowing surface and the leeward surface of the bevel straight barrel are parallel bevel groove straight barrels which are parallel to each other; or the wind blowing surface and the leeward surface of the bevel straight barrel are wing bevel straight barrels which are not parallel to each other;

or the multiple sections of large and small sleeves of the telescopic fan blades (1) are flat straight tubes; the wind blowing surface and the leeward surface of the flat straight body tube are planes parallel to each other;

the multi-section plate of the telescopic fan blade (1) is a plane plate, a cambered straight body plate or a folded angle straight body plate;

two sides of the sleeve fan blade or the plate fan blade are provided with a V-shaped slideway, a C-shaped slideway or a square slideway;

the contact sliding block (2) is made of plastic, rubber or graphite, so that friction force, noise and impact force are reduced;

the multi-section sleeve fan blade or the multi-section plate fan blade is made of metal; or the multi-section sleeve fan blade or the multi-section plate fan blade is made of plastic; or the sleeve fan blade or the plate fan blade is made of resin coagulated fiber;

or the multi-section sleeve fan blade and the multi-section plate fan blade tube plate are used together; the tube plate is used in a mixed mode, wherein telescopic fan blades (1) are sleeved on the tail end sections of the sleeve fan blades through plate fan blades;

or the multi-section sleeve fan blade or the multi-section plate fan blade is made of mixed materials; the mixed material is that the fixed base section of the multi-section sleeve fan blade or the multi-section plate fan blade is made of metal material, and the movable expansion joint is made of resin condensed fiber material or plastic material.

2. The contact sliding telescoping fan blade of claim 1, wherein: lubricating oil, lubricant or lubricating powder is adhered to the surfaces of the multiple sections of sleeve fan blades or the multiple sections of plate fan blades and the contact sliding block (2) to reduce friction force and noise; the lubricating powder is graphite powder.

3. The contact sliding telescoping fan blade of claim 1, wherein: the limiting stop hasp (3) is sleeved with a spring (3M) to impact the contact buckle slowly; or the limiting stop hasp (3) is connected with the elastic sheet to impact the contact buckle slowly; or the limit stop hasp (3) is buckled or the elastic adhesive is bonded to buffer the collision buckle.

4. The contact sliding telescoping fan blade of claim 1, wherein: each section of sleeve of the telescopic fan blade (1) is a hollow pipeline which is communicated end to end; or each section of sleeve of the telescopic fan blade (1) is fixedly connected with a plug at one end by a cross-sectional panel to strengthen and shape, so that the fan blade is ensured not to deform and prevent tripping.

5. The contact sliding telescoping fan blade of claim 1, wherein: the plastic material of the contact sliding block (2) is Polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene or glass fiber reinforced polyamide 66 brand; or the rubber material of the contact sliding block (2) is natural rubber NR or polyurethane rubber AU \ EU; or the graphite material of the contact sliding block (2) is pure carbon graphite M191T or carbon fiber-based graphite TF 310; the graphite block made of graphite is fixedly connected with the limiting clamping hasp (3) to slide on the fan blade; or the graphite is made into a graphite film or a graphite coating which is adhered to the limiting clamping hasp (3) to form the sliding vane of the sliding block; or the graphite is made into a graphite film or a graphite coating which is adhered to the surface of the fan blade to touch the sliding fan blade; the graphite film or the graphite coating stripes or the check stripes are adhered to or coated on the surface of the fan blade.

6. The contact sliding telescoping fan blade of claim 1, wherein: the metal material of the multi-section sleeve fan blades or the multi-section plate fan blades is stainless steel, stainless steel composite carbon steel, carbon spring steel, alloy spring steel or magnesium aluminum alloy; the metal is preferably stainless steel; the stainless steel is 201, 304, 316, 410, 420 or 440; the carbon spring steel is 65, 70, 85 or 65 Mn; the alloy spring steel is 55Si2Mn, 60Si2Mn, SKS51, C80, 75Cr1, SUP6 or CK 85.

7. The contact sliding telescoping fan blade of claim 1, wherein: the plastic material of the multi-section sleeve fan blade or the multi-section plate fan blade is Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS), Acrylonitrile Butadiene Styrene (ABS), Polyamide (PA), Polycarbonate (PC), Polyformaldehyde (POM), Polyester (PBT) or polyphenylene oxide (PPO), or the plastic material of the multi-section sleeve fan blade or the multi-section plate fan blade is fiber reinforced plastic; the fiber reinforced plastic is glass fiber reinforced polyamide 66, carbon fiber reinforced polyimide TPI, carbon fiber reinforced polyphenylene sulfide PPS or carbon fiber reinforced polyether ether ketone PEEK.

8. The contact sliding telescoping fan blade of claim 1, wherein: the fiber of the resin coagulated fiber material of the multiple sections of sleeve fan blades or the multiple sections of plate fan blades is glass fiber, carbon fiber, aramid fiber, basalt fiber, graphene fiber or carbon nanotube fiber; the resin is vinyl polyester resin, epoxy resin, polyurethane resin, phenolic resin or hydrocarbon resin.

9. The contact sliding telescoping fan blade of claim 1, wherein: the multiple sections of large and small sleeves or the multiple sections of buckling plates of the telescopic fan blades (1) are connected with a fan hub or a fan motor rotating shaft by using the minimum sleeve or plate at the innermost layer as a fixed base section; or a plurality of sections of large and small sleeves or a plurality of sections of buckling plates of the telescopic fan blades (1) use the innermost minimum sleeve or plate as a fixed base section and are sleeved with a support rod body (11) along the telescopic axial direction on the fixed base section to strengthen the minimum sleeve to be fixedly connected with a fan hub or a fan motor rotating shaft; or the multiple sections of large and small sleeves or the multiple sections of buckling plate blocks of the telescopic fan blades (1) are connected with the hub of the fan or the rotating shaft of the fan motor by taking the largest sleeve or plate block at the outermost layer as a fixed base section.

10. The contact sliding telescoping fan blade of claim 1, wherein: the telescopic fan blades (1) are connected with an anti-drop fuse; the anti-falling insurance comprises: a safety cable (22) and a motor switch (44); the safety cable (22) is connected with the tail end section of the telescopic fan blade (1) by one end point, the safety cable (22) is connected with the fixed base section or the fan hub of the telescopic fan blade (1) by the other end point, and the safety cable (22) is connected with the control valve of the motor switch (44) by the middle point (8); the motor switch (44) is preset to connect a power supply to the fan motor for starting; the middle point (8) of the safety cable (22) is divided into a long section and a short section by the safety cable (22).

[ technical field ] A method for producing a semiconductor device

The invention relates to a wind wheel blade, in particular to a household ceiling fan blade, a large-scale industrial ceiling fan blade and a helicopter wind wheel blade.

[ background of the invention ]

The invisible fan can be more conveniently and automatically stored when the invisible fan is idle, the household environment is further concise and beautified, and the invisible fan becomes a concise furniture electrical appliance.

The existing large fans are fixed, the large fans are heavy, the installation height is extremely high, the installation, the disassembly and the maintenance are carried out by professional equipment, when the fans are idle in the cool weather, the large fans are difficult, the air dust of special factories is much, fan blades operated for a long time accelerate the air dust adhered thickly, the fan blades are extremely elegant, a large elevator needs to be erected for manual cleaning, the blades of the large fans are long, the large elevator also needs to be horizontally displaced along the ground for a long distance to clean one fan blade, the work difficulty is high, and time and labor are wasted.

Although the conventional hidden fan with the retractable swinging blade disc realizes the hiding of fan blades, the retracted fan blades of the swinging blade disc can still see the retracted fan blades, particularly the fan blades which run for a long time can turn black after adsorbing air dust, and even if the fan blades retract, the black dust adhered to the retracted fan blades can still be clearly seen, and the hidden fan needs to be cleaned manually at regular intervals; moreover, the fan blade extension range is small, an industrial-grade large fan cannot be manufactured, and the fan blade invisibility can be achieved only by increasing the lamp decoration diameter to carry out concealed decoration by slightly extending the fan blade range, so that the matched lamp decoration is not flexible enough, and one diameter lamp decoration can only be used as a fitting for one diameter fan.

The multi-section linear telescopic fan blade is characterized in that the large section sleeve pipe blade and the small section sleeve pipe blade are directly sleeved with the blade surface to be in friction sliding expansion, and the expansion and contraction of the fan blade are realized, so that the fan blade is expanded and contracted and automatically cleaned, but a larger friction surface is arranged between every two adjacent sections of blades, the friction force is large, the expansion and contraction action is not smooth, a non-contraction state or a semi-contraction state often exists, and the expansion and contraction friction area is too large to generate.

The telescopic invisible fan has the risk that the fan blades are deformed to trip and loose the hinge dart, so that potential safety hazards are formed.

The wind wheel blades of the helicopter occupy a large space, are difficult to store in a warehouse, and are difficult to assemble in an emergency if the blades are unloaded and stored in the warehouse.

[ summary of the invention ]

The invention aims to solve the defects of the existing invisible fan, and provides the fan blade which has small telescopic friction, is smoother and more silent and telescopic, and can synchronously scrape surfaces and be clean; the fan blade or the helicopter wind wheel has the advantages that the multistage buckle is prevented from falling off, the safety cable is prevented from falling off, the power supply of the fan motor is automatically turned off by the tripping to stop rotating, the tripping is not operated, absolute safety is guaranteed, the diameter of the fan blade is conveniently increased, the lamp decoration is flexibly matched, and the idle storage space is smaller.

The invention utilizes a plurality of contact sliders arranged on the surfaces of the telescopic fan blades and the slide ways to contact the sliding fan blades; the limiting clamping hasp is connected to the inner side of one end of each section of telescopic fan blade slideway and the outer side of the other end of each slideway, and at least two linear arrays are arranged respectively to form at least one primary buckle and two-stage anti-falling; the cross section of one end of the sleeve fan blade is sealed to strengthen the fan blade to prevent deformation and release; the fan blades are reduced in friction and enhanced in bending resistance by piers, pits or T-shaped ribs, the plastic, rubber or graphite contact sliding blocks and the fan blades are adhered with lubricant or graphite powder to slide and contact the fan blades to reduce friction, and the strip-shaped contact sliding blocks protrude outwards or protrude inwards to slide and clean the fan blades; the fan blade is connected with an anti-drop safety, the multi-stage buckle is anti-drop, the safety cable is anti-drop, the power supply is automatically turned off by tripping, the expansion range of the fan blade is enlarged, the diameter of the lamp decoration is not required to be enlarged, and the lamp decoration is flexibly matched.

The invention adopts the following technical scheme:

a contact sliding telescoping fan blade comprising: a plurality of contact sliders and at least two stages of limiting stop hasps; the method is characterized in that: the contact sliding blocks are arranged on the surfaces of the telescopic fan blades and on the slide ways to contact and slide the telescopic fan blades; the limiting clamping hasp is fixedly connected to the inner side of one end of each section of telescopic fan blade slideway and the outer side of the other end of each slideway, and at least two linear arrays are arranged respectively to form at least one primary buckle and two-stage anti-falling; the contact sliding block is fixedly connected with the limit stop hasp to slide on the contact fan blade;

the telescopic fan blade is a sleeve fan blade formed by coaxially sliding, telescoping and sleeving a plurality of large and small sleeves, and limiting locking hasps are arranged on the inner side of one end of the sleeve and the outer side of the other end of the sleeve respectively for limiting and telescoping; or the telescopic fan blade is a plate fan blade formed by connecting a plurality of plate blocks in a sliding and telescopic manner through buckles, the two sides of each plate block are provided with buckle slide ways for stretching, and one side of one end of each plate block and the other side of the other end of each plate block are respectively provided with a limiting stop buckle for limiting stretching; or the multi-section sleeve fan blade mixed plate fan blade is a tube plate mixed fan blade formed by sleeving a section of plate fan blade on the tail end section of the multi-section sleeve fan blade;

the limit stop hasp is an additional fastener and is fixedly connected to the inner side of the slideway at one end of the telescopic fan blade and the outer side of the slideway at the other end of the telescopic fan blade by the additional fastener; or the limit stop hasp is a folded angle, a curled edge, a convex position, a concave position or a hole of the fan blade original; the curled edges are formed by respectively forming an outer curled edge and an inner curled edge at two ends of a telescopic opening of the wind blowing surface and the leeward surface of the sleeve fan blade or the plate fan blade to form a curled edge limiting and clamping hasp and transversely strengthen the shaping strength of the fan blade;

the contact sliding block is a slideway outer boss sliding block which is connected to one end of the sleeve fan blade or the plate fan blade and is provided with an outer boss contact sliding sleeve to be connected with the inner wall of the slideway of the sleeve fan blade or the plate fan blade in a sliding and stretching mode, so that friction and noise are reduced;

the contact sliding block is a slideway inner boss sliding block which is connected to the other end of the sleeve fan blade or the plate fan blade and is provided with an inner boss contact sliding sleeve to be sleeved with the outer wall of the slideway of the sleeve fan blade or the plate fan blade to slide and stretch, so that friction and noise are reduced;

the contact sliding block is made into a spherical sliding block or a conical sliding block, and the contact sliding block is fixed on a plurality of buckles, glued, riveted or welded on holes on the inner side and the outer side of the wind blowing surface and the leeward surface at one end of the fan blade to contact the fan blade;

the contact sliding block is used for contacting and sliding the fan blade by a pier of the fan blade original piece; the mounds are arrayed on the surface of the fan blade;

or the contact sliding block is a pit slot sliding vane of the vane element; the pit grooves are axially arranged along the extension direction of the fan blades and are arrayed on the fan blade surfaces to strengthen the bending resistance of the fan blades;

or the contact sliding block is a T-shaped rib contact sliding fan blade of a fan blade original piece; the T-shaped ribs are arranged along the telescopic axial direction of the fan blades and are arrayed on the fan blade surfaces to strengthen the bending resistance of the fan blades;

the contact sliding block is made into a strip-shaped sliding block fixing buckle, glued, riveted or welded at two ends of the fan blade, the strip-shaped sliding block at one end is externally convex to contact with the sliding sleeve to be sleeved on the inner wall surface of the fan blade to slide, stretch and clean, and the strip-shaped sliding block at the other end is internally convex to contact with the sliding sleeve to be sleeved on the outer wall surface of the fan blade to slide, stretch and clean;

the boss contact of the inner boss sliding block or the outer boss sliding block is arc-shaped, inclined plane, inclined tip or plane; (ii) a

The multiple sections of large and small sleeves of the telescopic fan blades are cambered straight pipes; the cambered surface straight barrel is a parallel cambered surface straight barrel with a cambered wind blowing surface parallel to a cambered leeward surface; or the cambered straight barrel is a crescent cambered straight barrel with an arc wind blowing surface and an arc leeward surface which are not parallel;

or the multiple sections of large and small sleeves of the telescopic fan blades are angle-folded straight tubes; the wind blowing surface and the leeward surface of the bevel straight barrel are parallel bevel groove straight barrels which are parallel to each other; or the wind blowing surface and the leeward surface of the bevel straight barrel are wing bevel straight barrels which are not parallel to each other;

or the multiple sections of large and small sleeves of the telescopic fan blades are flat straight tubes; the wind blowing surface and the leeward surface of the flat straight body tube are planes parallel to each other;

the multi-section plate of the telescopic fan blade is a plane plate, a cambered straight body plate or a folded angle straight body plate;

two sides of the sleeve fan blade or the plate fan blade are provided with a V-shaped slideway, a C-shaped slideway or a square slideway;

the contact sliding block is made of plastic materials, rubber materials or graphite materials, so that friction force, noise and impact force are reduced;

the multi-section sleeve fan blade or the multi-section plate fan blade is made of metal; or the multi-section sleeve fan blade or the multi-section plate fan blade is made of plastic; or the sleeve fan blade or the plate fan blade is made of resin coagulated fiber;

or the multi-section sleeve fan blade and the multi-section plate fan blade tube plate are used together; the tube plate is used in a mixed mode, wherein the telescopic fan blades are sleeved on the tail end sections of the sleeve fan blades by the plate block fan blades;

or the multi-section sleeve fan blade or the multi-section plate fan blade is made of mixed materials; the mixed material is that the fixed base section of the multi-section sleeve fan blade or the multi-section plate fan blade is made of metal material, and the movable expansion joint is made of resin condensed fiber material or plastic material;

in the design scheme of the contact sliding telescopic fan blade, lubricating oil, a lubricant or lubricating powder is adhered to the surfaces of the multiple sections of sleeve fan blades or the multiple sections of plate fan blades and the contact sliding block to reduce friction force and noise, wherein the lubricating powder is graphite powder, the lubricating oil is but not limited to Changcheng 85W/90G L-5 type lubricating oil, the lubricant is but not limited to dry film lubricant P L-3110 of Antand Fine chemical Co., Ltd, and the graphite powder is but not limited to Huatai HT-5-4 type crystalline flake graphite powder.

In the design scheme of the contact sliding telescopic fan blade, the limit stop hasp is sleeved with a spring buffer collision contact buckle; or the limiting stop hasp is connected with the elastic sheet to impact the contact buckle slowly; or the limit stop hasp buckle or the bonding elastic glue buffers the collision buckle.

In the design scheme of the contact sliding telescopic fan blade, each section of sleeve of the telescopic fan blade is a hollow pipeline which is communicated end to end; or one end of each section of sleeve of the telescopic fan blade is fixedly connected with a plug through a cross-sectional panel to strengthen and shape, so that the fan blade is ensured not to deform and prevent tripping.

In the design scheme of the contact sliding telescopic fan blade, the plastic material of the contact sliding block is but not limited to Polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene or glass fiber reinforced polyamide 66 brand; or the rubber material of the contact sliding block is but not limited to natural rubber NR or polyurethane rubber AU \ EU; or the graphite material of the contact slider is but not limited to pure carbon graphite M191T or carbon fiber-based graphite TF 310; the graphite block made of graphite is fixedly connected with the limiting clamping hasp to slide and touch the fan blade; or the graphite is made into a graphite film or a graphite coating which is adhered to the limiting and clamping hasp to form the sliding contact fan blade of the sliding block; or the graphite is made into a graphite film or a graphite coating which is adhered to the surface of the fan blade to touch the sliding fan blade; the graphite film or the graphite coating stripes or the check stripes are adhered to or coated on the surface of the fan blade.

In the design scheme of the contact sliding telescopic fan blade, the metal material of the multiple sections of sleeve fan blades or the multiple sections of plate fan blades is but not limited to stainless steel, stainless steel composite carbon steel, carbon spring steel, alloy spring steel or magnesium aluminum alloy; the metal is preferably stainless steel; the stainless steel is, but not limited to, 201, 304, 316, 410, 420 or 440; the carbon spring steel is but not limited to 65, 70, 85 or 65 Mn; the alloy spring steel is but not limited to 55Si2Mn, 60Si2Mn, SKS51, C80, 75Cr1, SUP6 or CK 85.

In the above design scheme of the contact sliding telescopic fan blade, the plastic material of the multiple casing blades or the multiple plate blades is but not limited to polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS, ABS, polyamide PA, polycarbonate PC, polyoxymethylene POM, polyester PBT or polyphenylene oxide PPO, or the plastic material of the multiple casing blades or the multiple plate blades is fiber reinforced plastic; the fiber reinforced plastic is but not limited to glass fiber reinforced polyamide 66, carbon fiber reinforced polyimide TPI, carbon fiber reinforced polyphenylene sulfide PPS or carbon fiber reinforced polyether ether ketone PEEK.

In the design scheme of the contact sliding telescopic fan blade, the fiber made of the resin coagulated fiber of the multiple sections of sleeve fan blades or the multiple sections of plate fan blades is but not limited to glass fiber, carbon fiber, aramid fiber, basalt fiber, graphene fiber or carbon nanotube fiber; the resin is, but not limited to, a vinyl polyester resin, an epoxy resin, a polyurethane resin, a phenol resin, or a hydrocarbon resin.

In the design scheme of the contact sliding telescopic fan blade, a plurality of sections of large and small sleeves or a plurality of sections of buckling plates of the telescopic fan blade are connected with a fan hub or a fan motor rotating shaft by using a minimum sleeve or plate at the innermost layer as a fixed base section; or a plurality of sections of large and small sleeves or a plurality of sections of buckle plates of the telescopic fan blades use the innermost minimum sleeve or plate as a fixed base section and are sleeved with a support rod body along the telescopic axial direction on the fixed base section to strengthen and support the minimum sleeve to be fixedly connected with a fan hub or a fan motor rotating shaft; or the multiple sections of large and small sleeves or the multiple sections of buckling plate blocks of the telescopic fan blades (1) are connected with the hub of the fan or the rotating shaft of the fan motor by taking the largest sleeve or plate block at the outermost layer as a fixed base section.

In the design scheme of the contact sliding telescopic fan blade, the telescopic fan blade is connected with an anti-drop fuse; the anti-falling insurance comprises: a safety cable and a motor switch; the safety cable is connected with the tail end section of the telescopic fan blade by one end point, is connected with the fixed base section of the telescopic fan blade or the fan hub by the other end point, and is connected with the control valve of the motor switch by one point in the middle; the motor switch is preset to connect a power supply to the fan motor for starting; the middle point of the safety cable is segmented into a long section and a short section.

The invention has the beneficial effects that: the friction force is small, the fan blades can be more smoothly and more silently stretched, the complete shrinkage is ensured, and the fan blades are stretched and synchronously scraped to clean the fan blades; avoiding manual cleaning of the fan blades; the multistage buckle is prevented from falling off, the safety cable is prevented from falling off, the power supply of the fan motor is automatically turned off by tripping to stop rotating, and the tripping is not operated, so that absolute safety is ensured; the telescopic axial pot holes or T-shaped ribs reduce friction and strengthen the bending resistance of the fan blades; the idle storage space of the fan blades is small; the fan blade telescopic range is enlarged without increasing the diameter of the lamp decoration, only the number of fan blade sections is increased, one diameter lamp decoration is flexibly matched with fans with various diameters, the hidden decoration is not needed, and the telescopic effect is really hidden.

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

[ description of the drawings ]

FIG. 1 shows that two sections of sleeve limiting clamping buckles 3 are arrayed at three stages of buckles on the single-side outer side of a section of slideway to prevent falling off;

FIG. 2 is a perspective view of the supporting rod 11 sleeved on the minimum sleeve fixing base section of the crescent cambered straight tube fan blade;

FIG. 3 is an axial front view of the supporting rod body 11 sleeved on the fixed base section of the minimum sleeve of the crescent cambered straight tube fan blade;

FIG. 4 is a perspective view of the supporting rod 11 sleeved on the minimum sleeve fixing base section of the wing angle straight tube fan blade;

FIG. 5 is a maximum bushing fixing base for a parallel cambered surface straight barrel fan blade;

FIG. 6 is a cross section of a flat straight tube with a C-shaped slideway for a tube plate hybrid fan blade, and a slider boss contact point is a slant tip;

FIG. 7 is a cross-section of a flat straight tube with a V-shaped chute for a tube sheet hybrid fan blade, and a slider boss contact is arc-shaped;

FIG. 8 is a cross-section of a straight barrel with parallel dog-ear grooves and a slider boss contact in a flat plane, with sleeve blades being V-shaped slides;

FIG. 9 is a cross section of a straight pipe with parallel arc surfaces and a V-shaped slideway as a sleeve fan blade, and a slider boss contact point is a plane;

FIG. 10 is an enlarged partial side elevational view of FIG. 9;

FIG. 11 is a cross-section of a wing angle-folded straight-body tube with a V-shaped slideway as a sleeve fan blade, and a slider boss contact point is a plane;

FIG. 12 is a cross-section of a flat straight tube with square slides for cannula blades, with the slider boss contacts being planar;

FIG. 13 is a cross-section of a block with a V-shaped blade, a bent angle and a straight body, and a slider boss contact point is a plane;

FIG. 14 is a cross section of a straight body block with a cambered surface and a V-shaped slide way as a block fan blade, and a slider boss contact point is a plane;

FIG. 15 is a cross-section of a planar plate with square slides for the plate blades, with the slider boss contacts being planar;

FIG. 16 is a cross-section of a planar plate with C-shaped slides, with slider boss contacts with beveled tips;

FIG. 17 is an external perspective view of the slide inner and outer side additional fasteners 31 and slide inner and outer boss blocks 2A, 2B of the slide;

FIG. 18 is a perspective view of an attachment fastener 31 on the outside of the slide;

FIG. 19 is a perspective view of the outer boss block 2A snapped into the channel outer attachment tab 31;

FIG. 20 is a perspective view of the inner cam slider 2B snapped into the channel inner attachment clip 31;

FIG. 21 is a perspective view of the attachment clip 31 on the inside of the slide;

FIG. 22 is an interior perspective view of the slide inboard and outboard attachment clips 31 and slide inboard and outboard boss blocks 2A, 2B of the slide;

FIG. 23 shows two sections of sleeves buffered by a limiting stop hasp 3 sleeved with a spring 3M;

FIG. 24 is a partial enlarged view of FIG. 23;

FIG. 25 shows the slide inner side fastener 31 engaging with the spring 3M buffer buckle outer side fastener 31;

fig. 26 is a buffer spring 3M;

fig. 27 shows the additional fastener 31 inside the slide provided with a spring trepan;

FIG. 28 is an outer curled edge 33a of one end of the expansion opening of the crescent cambered surface straight tube fan blade on the windward side and the leeward side;

FIG. 29 is an enlarged view of one end inside curled edge 33b of the expansion opening of the fan blade with the crescent cambered surface and the straight body;

FIG. 30 is an enlarged view of an outer edge 33a at one end of the expansion opening of the fan blade with the crescent cambered surface and the straight tube;

FIG. 31 is a perspective view of the spherical slider 2 with plural fixed fastening portions on the windward and leeward sides of the fan blades;

FIG. 32 is an axial elevational view of FIG. 31;

FIG. 33 is a view of the convex and concave mounds 36 on the windward and leeward sides of the blade elements of the shroud;

FIG. 34 is an exploded view of the fan blade attachment fastener 31, the recessed portion 35 and the folded corner 32 snap-fit limit stop buckle 3;

FIG. 35 is a perspective view of two parallel cambered straight pipe blades with V-shaped slides on both sides;

FIG. 36 is a perspective view of the outboard attachment clip 31 of the slide;

FIG. 37 is a perspective view of the slide outboard boss block 2A snapped into the slide outboard attachment clip 31;

FIG. 38 shows the slide way inner boss block 2B with the concave position 35 or the bevel 32 for the concave position to fasten the fan blade;

FIG. 39 shows the sliding extension of the outer wall of the slide way of the fan blades in the slide way inner boss slide block 2B with the inner boss contact point contact slide;

FIG. 40 shows the stop buckle 3 with the bevel 32 and the concave 35 on the two sides of the blade of the sleeve;

FIG. 41 is a flat straight tube blade with a section of V-shaped slides;

FIG. 42 is a perspective view of the inboard ledge slide 2B snapped into place with the attachment clip 31 on the inboard side of the slide;

FIG. 43 is an enlarged view of the slide dog angle 32 on both sides of the sleeve blade original snap fit in the slide boss slide 2B;

fig. 44 is an internal perspective view of the slide inner boss slider 2B;

FIG. 45 is an interior perspective view of the slide outer boss slide 2A;

FIG. 46 is an external perspective view of a slide outer boss slide block 2A with the boss contacts having an arcuate shape and a planar shape;

FIG. 47 is an interior perspective view of the slide inner boss slide 2B;

FIG. 48 is an external perspective view of the slide inner boss slide 2B;

FIG. 49 is an interior perspective view of the slide outer boss slide 2A;

FIG. 50 is an exterior perspective view of the slide outer boss slide 2A;

FIG. 51 is a flat straight tube blade with a square slide;

FIG. 52 is a view of the plastic blades integrally injection-molded with a mold to form the original stop buckle of the protruding portion 34;

FIG. 53 shows the retractable blade connected to the anti-dropping safety and safety circuit;

FIG. 54 is a cross section of a crescent cambered straight-barrel fan blade, wherein telescopic slideways are respectively arranged at two sides and a middle folding position of the fan blade;

FIG. 55 is a cross-sectional view of a wing angled straight barrel fan blade;

FIG. 56 is a cross-sectional view of a four-section wing angled straight duct fan blade, with telescopic slides provided on both sides and at the middle fold position of the fan blade.

[ detailed description ] embodiments

The present invention is illustrated in detail by the following examples, which include, but are not limited to, the following examples.

The material of the limit stop hasp 3 in the following embodiments I to ninth is the same as that of the sleeve fan blade or the plate fan blade so as to facilitate the gluing with the same property, the welding with the same type of material or the integral injection molding;

in the following embodiments one to nine, as shown in fig. 53, an anti-dropping fuse is connected to each of the retractable blades 1, and the anti-dropping fuse includes: the safety cable 22 and the motor switch 44; the safety cable 22 is connected with the tail end section of the telescopic fan blade 1 by one end point, the safety cable 22 is connected with the fixed base section of the telescopic fan blade 1 or the fan hub by the other end point, and the safety cable 22 is connected with the control valve of the motor switch 44 by the middle point 8; the motor switch 44 is preset to connect the power supply to the fan motor for starting; the middle point 8 of the safety cable 22 is divided into a long section and a short section of the safety cable 22;

as shown in fig. 53, the length of the long section is the total length of the extended telescopic fan blade 1; the length of the short section is the positioning distance between the positioning of the motor switch 44 at one point in the middle and the fixed base section of the telescopic fan blade 1 connected with the other end point of the safety cable 22 plus the anti-falling limiting length of the two-stage clamping hasp 3; if one of the multiple telescopic fan blades 1 is tripped, the safety cable 22 is stretched beyond the total length of the multiple telescopic fan blades 1 to pull the motor switch 4 to cut off the power supply of the fan motor.

In the following embodiments from one to nine, as shown in fig. 17 and 19, the contact slider 2 is a slideway outer boss slider 2A, which is connected to one end of the sleeve fan blade or the plate fan blade and is provided with an outer boss contact sliding sleeve to slide and stretch along the inner wall of the slideway of the sleeve fan blade or the plate fan blade, so that friction and noise are reduced;

in the following embodiments from one to nine, as shown in fig. 20, 21 and 22, the contact slider 2 is a slide inner boss slider 2B which is connected to the other end of the sleeve fan blade or the plate fan blade and is provided with an inner boss contact to slidably extend and retract along the outer wall of the slide in which the sleeve fan blade or the plate fan blade is inserted, so that friction and noise are reduced; as shown in fig. 6, 7, 10, 45 and 46, the boss contact point of the inner boss slider 2B or the outer boss slider 2A is arc-shaped, inclined, tapered or flat.

In the following first, fourth and ninth embodiments, the plastic material of the contact slider 2 is but not limited to PTFE, ultra-high molecular weight polyethylene or glass fiber reinforced polyamide 66;

in the following three, five and six embodiments, the rubber material of the contact slider 2 is, but not limited to, natural rubber NR or urethane rubber AU \ EU.

In the following second, seventh and eighth embodiments, the graphite material of the contact slider 2 is, but not limited to, pure carbon graphite M191T or carbon fiber-based graphite TF 310.

In the following first, second, third, sixth and seventh embodiments, the metallic material of the multi-section sleeve fan blade or the multi-section plate fan blade is, but not limited to, stainless steel composite carbon steel, carbon spring steel, alloy spring steel or magnesium aluminum alloy; the metal is preferably stainless steel; the stainless steel is, but not limited to, 201, 304, 316, 410, 420 or 440; the carbon spring steel is but not limited to 65, 70, 85 or 65 Mn; the alloy spring steel is but not limited to 55Si2Mn, 60Si2Mn, SKS51, C80, 75Cr1, SUP6 or CK 85.

In the fourth and ninth following embodiments, the plastic material of the multi-section sleeve fan blade or the multi-section plate fan blade is but not limited to polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS, ABS, polyamide PA, polycarbonate PC, polyoxymethylene POM, polyester PBT or polyphenylene oxide PPO; or the plastic material of the multi-section sleeve fan blade or the multi-section plate fan blade is fiber reinforced plastic; the fiber reinforced plastic is, but not limited to, glass fiber reinforced polyamide 66, carbon fiber reinforced polyimide (TPI), carbon fiber reinforced polyphenylene sulfide (PPS) or carbon fiber reinforced polyether ether ketone (PEEK).

In the fifth, sixth and eighth embodiments, the fiber of the resin coagulated fiber material of the multi-section sleeve fan blade or the multi-section plate fan blade is but not limited to glass fiber, carbon fiber, aramid fiber, basalt fiber, graphene fiber or carbon nanotube fiber; the resin is, but not limited to, a vinyl polyester resin, an epoxy resin, a polyurethane resin, a phenol resin, or a hydrocarbon resin.

In the embodiments, the fan blade diameter is increased to expand the air sweeping area, and under the condition that the lamp decoration diameter is not changed, the air sweeping area can be expanded by only increasing the number of the fan blade sections and increasing the extension length of the fan blade, the lamp decoration diameter is not required to be increased by increasing the number of the fan blade sections, and a fan with various diameters can be flexibly matched and erected by one kind of diameter lamp decoration, so that the power of a fan motor is correspondingly increased.