CN209838194U

CN209838194U - Steel fireproof door

Info

Publication number: CN209838194U
Application number: CN201920111312.8U
Authority: CN
Inventors: 张永久
Original assignee: Beijing Blue Shield Metal Door And Window Factory
Current assignee: Beijing Blue Shield Metal Door And Window Factory
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2019-12-24
Anticipated expiration: 2029-01-22

Abstract

The utility model relates to a steel fireproof door, which comprises a door body, wherein two side walls with larger area of the door body are respectively embedded with glass, a first cavity is arranged inside the door body, the first cavity is connected with a baffle plate which is positioned between the two pieces of glass and used for shielding the glass in a sliding way, a lifting component is arranged in the first cavity below the baffle plate, the lifting component comprises a sleeve fixedly connected at the bottom of the baffle plate and a threaded hole which is arranged at the bottom of the sleeve and extends to the inside of the sleeve, the screw rod is in threaded fit with the threaded hole and is rotatably connected to the inner wall of the first cavity below the sleeve, the telescopic rod is fixedly connected with the bottom of the baffle and is located on one side of the sleeve and used for supporting the baffle, the bottom of the telescopic rod is fixedly connected with the inner wall of the bottom of the first cavity, a transmission assembly for driving the screw rod to rotate is arranged in the first cavity, and limiting assemblies for limiting the sliding direction of the baffle are arranged on the baffle and the first cavity. The utility model discloses have the effect that improves indoor privacy nature.

Description

Steel fireproof door

Technical Field

The utility model belongs to the technical field of architectural equipment's technique and specifically relates to a fire door is prevented to steel is related to.

Background

The steel door is a door frame member which is formed by processing surface-treated steel sectional materials through blanking, punching, groove milling, tapping, manufacturing and other processing technologies and combining and assembling connecting pieces, sealing materials and opening and closing hardware fittings. The door which is made of steel as a stress rod piece base material and compounded with products such as wood, plastics and the like is called a steel-wood composite door or a steel-plastic composite door in the market. The section bar and glass style of the steel door are divided into south and north. The northern area is mainly characterized by thick steel and stable pattern, the most representative is the lattice bar pattern, and the most characteristic of the lattice bar is Tang lattice. In the south, the steel products are mainly characterized by various shapes and active styles, the most representative styles are flower glass styles, and the more distinctive styles include patterns, ice sculptures, shallow sculptures, crystal shells and the like. Because steel hardness is higher, have certain fire behavior when taking place the conflagration, the fire door is used as frequently, and belongs to middle-grade and high-grade fire door. The use of steel fire doors improves safety in the event of an accident hazard.

At present, the chinese utility model patent with the publication number CN207892428U discloses a steel fireproof door frame and an aluminum alloy door, which comprises a left door frame, an upper sill, a right door frame, a lower sill and an aluminum alloy door, wherein the left door frame, the upper sill, the right door frame and the lower sill are integrally connected, the aluminum alloy door is hinged at the inner side of the left door frame through a hinge, the right side surface of the left door frame is provided with a first rubber sealing strip, the rear side of the right door frame is provided with a concave platform, a second rubber sealing strip is arranged in the concave platform, the inner side of the lower part of the aluminum alloy door is provided with a fixed connecting part combined with the aluminum alloy door, a long support arm of the fixed connecting part is welded with the inner side of the aluminum alloy door, and a short support; the aluminum alloy door is provided with decorative columns positioned at the lower part, a door handle positioned at the middle part and cat eyes positioned at the door lock and the upper part, and glass is arranged between the decorative columns.

The above prior art solutions have the following drawbacks: because glass is usually arranged on the steel fireproof door, the arrangement of the glass improves the light transmission and the visibility of the steel fireproof door, and simultaneously causes the indoor privacy to be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fire door is prevented to steel, it has the effect that improves indoor privacy nature.

The above technical purpose of the present invention can be achieved by the following technical solutions: a steel fireproof door comprises a door body, wherein glass is respectively embedded on the side walls of the door body, a first cavity is arranged inside the door body, a baffle plate which is positioned between the two pieces of glass and is used for shielding the glass is connected in the first cavity in a sliding way, a lifting assembly is arranged in the first cavity below the baffle plate, the lifting assembly comprises a sleeve fixedly connected with the bottom of the baffle plate, a threaded hole formed in the bottom of the sleeve and extending to the interior of the sleeve, a screw rod which is in threaded fit with the threaded hole and is rotatably connected to the inner wall of the first cavity below the sleeve, and a telescopic rod which is fixedly connected with the bottom of the baffle plate and is positioned on one side of the sleeve and used for supporting the baffle plate, the bottom of the telescopic rod is fixedly connected with the inner wall of the bottom of the first cavity, a transmission assembly for driving the screw rod to rotate is arranged in the first cavity, the baffle and be provided with the restriction on the first cavity the spacing subassembly of baffle sliding direction.

Through adopting above-mentioned technical scheme, drive the lead screw through transmission assembly and rotate, the lead screw provides the revolving force for its screw-thread fit's sleeve, and the sleeve turns into the rotation of lead screw self along sliding of vertical direction under the limiting displacement of the spacing subassembly on the baffle to drive the baffle and go up and down, when the baffle removed to between two glass, transmission assembly stop motion, thereby shelter from glass, with this improvement indoor privacy nature.

The utility model discloses further set up to: the limiting assembly comprises sliding blocks and sliding grooves, wherein the sliding blocks are symmetrically and fixedly connected to the left side and the right side of the horizontal direction of the baffle, and the sliding grooves are formed in the inner wall of the first cavity and are in sliding fit with the sliding blocks.

Through adopting above-mentioned technical scheme, the efficiency that the baffle slided has been improved on the one hand in setting up of spacing subassembly, and on the other hand is spacing for the baffle, avoids the baffle to follow the sleeve and rotate and influence the lift effect of baffle in first cavity.

The utility model discloses further set up to: the transmission assembly comprises a driven bevel gear, a driving bevel gear and a rotating shaft, wherein the driven bevel gear is fixedly sleeved below the screw rod, the driving bevel gear is meshed with the driven bevel gear, and the rotating shaft is fixedly sleeved at the center of the driving bevel gear.

Through adopting above-mentioned technical scheme, the axis of rotation drives the drive bevel gear and rotates to drive driven bevel gear and rotate, driven bevel gear drives the lead screw rotation of fixing with it, thereby realizes the lift of baffle, and drive assembly's setting has improved the convenience that adjusting the baffle goes up and down.

The utility model discloses further set up to: fixedly connected with bracing piece on the inner wall of first cavity bottom, the confession is seted up at the top of bracing piece the through-shaft mouth that the axis of rotation was worn to establish.

Through adopting above-mentioned technical scheme, the setting up of bracing piece provides the support for the axis of rotation, avoids the axis of rotation to move down under the effect of the gravity that self receives and makes driven bevel gear and drive bevel gear break away from to avoid influencing lifting unit's lift effect.

The utility model discloses further set up to: and a hand wheel is fixedly connected to one side of the rotating shaft, which is far away from the driving bevel gear.

Through adopting above-mentioned technical scheme, the setting of hand wheel has saved the power consumption when operating personnel rotates the axis of rotation to the rotation efficiency of axis of rotation has been improved.

The utility model discloses further set up to: and an access door convenient for rotating a hand wheel is arranged on the side wall of the bottom of the door body.

Through adopting above-mentioned technical scheme, when the spare part in the first cavity damaged, the setting of access door is convenient for operating personnel to overhaul or change the spare part to the cost of maintenance of spare part has been reduced.

The utility model discloses further set up to: a second cavity is formed in the baffle, and soundproof cotton is filled in the second cavity.

Through adopting above-mentioned technical scheme, soundproof cotton has good sound absorbing performance, packs soundproof cotton in the baffle to improve the syllable-dividing effect of baffle, with this whole syllable-dividing effect that improves the door body.

The utility model discloses further set up to: and one side of the glass, which is far away from the baffle, is adhered with a layer of transparent fireproof film.

Through adopting above-mentioned technical scheme, because the temperature is higher when taking place the conflagration, glass explodes the breakage easily, and the fire prevention membrane has high temperature resistance, pastes the fire prevention membrane on glass to reinforcing glass's stability avoids glass to be heated and breaks and brings the potential safety hazard, has further improved the whole fire resistance that fire door was prevented to the steel.

To sum up, the utility model discloses a beneficial technological effect does:

the lifting assembly drives the baffle to lift, and when the baffle moves between the two pieces of glass, the glass is shielded, so that the indoor privacy is improved;

the arrangement of the limiting assembly improves the sliding efficiency of the baffle plate on one hand, and the limiting of the baffle plate on the other hand prevents the baffle plate from rotating in the first cavity along with the sleeve to influence the lifting effect of the baffle plate;

the support rod is arranged to support the rotating shaft, so that the rotating shaft is prevented from moving downwards under the action of self-borne gravity to separate the driven bevel gear from the driving bevel gear.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic cross-sectional view of the lifting assembly of the present embodiment;

fig. 3 is a schematic sectional view of the transmission assembly of the present embodiment.

In the figure: 1. a door body; 11. a first cavity; 12. an access door; 2. glass; 21. a fire-resistant film; 3. a baffle plate; 31. a second cavity; 311. sound insulation cotton; 4. a lifting assembly; 41. a sleeve; 42. a threaded hole; 43. a screw rod; 44. a telescopic rod; 5. a limiting component; 51. a slider; 52. a chute; 6. a transmission assembly; 61. a driven bevel gear; 62. a drive bevel gear; 63. a rotating shaft; 631. a hand wheel; 7. a support bar; 71. and (4) passing through the shaft opening.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and fig. 3, for the utility model discloses a fire door is prevented to steel, including the door body 1. The door body 1 has a rectangular plate-like structure and is made of steel, which has certain hardness and high temperature resistance and is a preferred material for manufacturing a fire door. The glass 2 is embedded in the upper part of the door body 1, the cross section of the glass 2 is rectangular, and the two pieces of glass 2 are embedded in the side wall of the door body 1 respectively. Glass 2 keeps away from one side of the internal portion of door 1 and pastes fireproof film 21, fireproof film 21 is double-deck metal complex film, mainly makes by polymer environmental protection material, has certain hardness and high temperature resistance, because the temperature is higher when the conflagration breaing out, glass 2 explodes the breakage easily, pastes fireproof film 21 on glass 2, thereby reinforcing glass 2's stability, avoid glass 2 to be heated to break and bring the potential safety hazard, the whole fire behavior of fire door is prevented to further having improved the steel.

Referring to fig. 2, a first cavity 11 is formed inside the door body 1, and a cross section of the first cavity 11 is rectangular, and a length direction of the first cavity is consistent with a length direction of the door body 1. Referring to fig. 3, the baffle 3 is slidably connected to the first cavity 11, and the baffle 3 is a rectangular plate-shaped structure and is located between the two pieces of glass 2 for shielding the glass 2. The baffle 3 is internally provided with a second cavity 31, the section of the second cavity 31 is rectangular, and soundproof cotton 311 is filled in the second cavity. The soundproof cotton 311 has a good sound absorbing effect for improving the sound insulating performance of the baffle 3, thereby improving the sound insulating effect of the door body 1.

Referring to fig. 2, a lifting assembly 4 is disposed in the first cavity 11, and the lifting assembly 4 includes a sleeve 41, a threaded hole 42, a lead screw 43, and a telescopic rod 44. The top end of the sleeve 41 is fixedly connected to the lower surface of the baffle 3, and the sleeve 41 is of a circular columnar structure and is arranged perpendicular to the horizontal direction. The threaded hole 42 is opened at the bottom of the sleeve 41 and extends to the inside of the sleeve 41 along the length direction of the sleeve 41. The screw rod 43 is in a circular columnar structure, the surface of the screw rod is provided with threads, and the screw rod is in threaded fit with the threaded hole 42; the screw 43 is located below the sleeve 41, the top of which extends into the interior of the sleeve 41, and the bottom of which is rotatably connected to the inner wall of the bottom of the first cavity 11. The telescopic rod 44 is a round rod-shaped structure, the top end of the telescopic rod is fixedly connected with the lower surface of the baffle plate 3, and the bottom end of the telescopic rod is fixedly connected with the inner wall of the first cavity 11; the telescoping rod 44 is located on one side of the sleeve 41 to provide support for the baffle 3.

Referring to fig. 2, a limiting assembly 5 is disposed in the baffle 3 and the first cavity 11, and the limiting assembly 5 includes a sliding block 51 and a sliding groove 52. The sliding blocks 51 are rectangular block structures and are symmetrically fixed on the left side and the right side of the baffle 3 in the horizontal direction. The sliding groove 52 is opened on the inner wall of the first cavity 11, and the length direction of the sliding groove 52 is the same as the length direction of the first cavity 11. The slider 51 on the baffle 3 slides along the chute 52, thereby improving the stability of the baffle 3 when sliding, and simultaneously limiting the baffle 3 and avoiding the rotation of the baffle 3 to be inclined.

Referring to fig. 3, a driving assembly 6 is disposed in the first cavity 11, and the driving assembly 6 includes a driven bevel gear 61, a drive bevel gear 62, and a rotating shaft 63. The driven bevel gear 61 is fixedly fitted on the lower portion of the lead screw 43 and engaged with the drive bevel gear 62. The rotating shaft 63 is horizontally disposed in the first cavity 11 and is fixed to the driving bevel gear 62. The inner wall of the bottom of the first cavity 11 is fixedly connected with a support rod 7, the support rod 7 is of a rectangular rod-shaped structure, the top of the support rod is provided with a shaft passing opening 71, and the section of the shaft passing opening 71 is circular so that the rotating shaft 63 can penetrate through the opening. The support rod 7 is arranged to support the rotating shaft 63, so that the rotating shaft 63 is prevented from moving downwards under the action of self-borne gravity to separate the driven bevel gear 61 from the driving bevel gear 62, and the lifting effect of the baffle 3 is prevented from being influenced. The end part of the rotating shaft 63 is fixedly connected with a hand wheel 631, the section of the hand wheel 631 is circular and is positioned at one end of the rotating shaft 63 far away from the driving bevel gear 62, and the hand wheel 631 is arranged to save labor consumption of an operator when the operator rotates the rotating shaft 63, so that the rotating efficiency of the rotating shaft 63 is improved.

Referring to fig. 1, an access door 12 is provided at the bottom of the door body 1, and the section of the access door 12 is rectangular and is communicated with the first cavity 11. As shown in connection with fig. 3, the access door 12 is arranged to facilitate the operator's turning of the hand wheel 631; on the other hand, when the parts in the first cavity 11 are damaged, the parts are convenient to repair or replace, so that the maintenance cost of the parts is reduced.

The implementation principle of the embodiment is as follows: the hand wheel 631 is rotated, the driving bevel gear 62 drives the driven bevel gear 61 to rotate, so that the driven bevel gear 61 drives the screw rod 43 to rotate, the screw rod 43 provides a rotating force for the sleeve 41 in threaded fit with the screw rod, the sleeve 41 converts the rotation of the screw rod 43 into self sliding along the vertical direction under the limiting effect of the sliding block 51 and the sliding groove 52, the baffle 3 is driven to lift, when the baffle 3 moves between two pieces of glass 2, the hand wheel 631 stops rotating, the baffle 3 shields the glass 2, and therefore the indoor privacy is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fire door is prevented to steel, includes door body (1), its characterized in that: the glass (2) is respectively embedded on the side wall of the door body (1), a first cavity (11) is formed in the door body (1), the first cavity (11) is connected with a baffle (3) which is positioned between the two pieces of glass (2) and used for shielding the glass (2) in a sliding manner, a lifting assembly (4) is arranged in the first cavity (11) below the baffle (3), the lifting assembly (4) comprises a sleeve (41) fixedly connected to the bottom of the baffle (3), a threaded hole (42) formed in the bottom of the sleeve (41) and extending into the sleeve (41), a screw rod (43) which is in threaded fit with the threaded hole (42) and is rotatably connected to the inner wall of the first cavity (11) below the sleeve (41), and a telescopic rod (44) which is fixedly connected to the bottom of the baffle (3) and is positioned on one side of the sleeve (41) and used for supporting the baffle (3), the bottom of the telescopic rod (44) is fixedly connected with the inner wall of the bottom of the first cavity (11), a transmission assembly (6) for driving the screw rod (43) to rotate is arranged in the first cavity (11), and a limiting assembly (5) for limiting the sliding direction of the baffle (3) is arranged on the baffle (3) and the first cavity (11).

2. A fire door made of steel according to claim 1, characterized in that: the limiting assembly (5) comprises sliding blocks (51) which are symmetrically and fixedly connected to the left side and the right side of the baffle (3) in the horizontal direction and sliding grooves (52) which are formed in the inner wall of the first cavity (11) and matched with the sliding blocks (51) in a sliding mode.

3. A fire door made of steel according to claim 1, characterized in that: the transmission assembly (6) comprises a driven bevel gear (61) fixed below the screw rod (43) in a sleeved mode, a driving bevel gear (62) meshed with the driven bevel gear (61) and a rotating shaft (63) fixed in the center of the driving bevel gear (62) in a sleeved mode.

4. A fire door made of steel according to claim 3, characterized in that: fixedly connected with bracing piece (7) on the inner wall of first cavity (11) bottom, the confession is seted up at the top of bracing piece (7) the axle mouth (71) of crossing that axis of rotation (63) wore to establish.

5. A fire door made of steel according to claim 3, characterized in that: and a hand wheel (631) is fixedly connected to one side of the rotating shaft (63) far away from the driving bevel gear (62).

6. A fire door made of steel according to claim 5, characterized in that: an access door (12) convenient for rotating a hand wheel (631) is arranged on the side wall of the bottom of the door body (1).

7. A fire door made of steel according to claim 1, characterized in that: a second cavity (31) is formed in the baffle (3), and soundproof cotton (311) is filled in the second cavity (31).

8. A fire door made of steel according to claim 1, characterized in that: one side of the glass (2) far away from the baffle (3) is adhered with a layer of transparent fireproof film (21).