Fireproof steel structure for building

Abstract

The utility model relates to the technical field of fireproof steel structures, in particular to a fireproof steel structure for a building. The fireproof steel structure for the building comprises a steel structure body, a fireproof layer is arranged on the outer side of the steel structure body, the fireproof layer is made of fireproof asbestos, and the fireproof steel structure further comprises a base fixedly connected to the lower end of the steel structure body. No matter which side of the steel structure body meets open fire, under the burning of the open fire, as long as the temperature of one heat conduction box rises, the temperature of the expansion liquid rises, kinetic energy of molecular motion is increased, the distance between molecules is increased, expansion occurs, the two piston plates are pushed to slide oppositely, and the piston plates slide oppositely to drive the telescopic pieces to slide oppositely. The two baffles are driven by the connecting block to move oppositely, the overflow groove is opened, rainwater flows downwards along the fireproof asbestos on the outer side of the steel structure body, the whole fireproof asbestos is wetted, and fireproof protection is conducted on the steel structure body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fireproof steel structure technical field especially relates to a building fireproof steel structure. BACKGROUND

[0002] Steel structure is a kind of building material that does not burn, it has the characteristics such as anti-seismic, anti-bending, in practical application, steel structure can relatively increase the load capacity of building, can also meet the needs of architectural design aesthetic modeling, therefore, steel structure is favored by the building industry, single-layer, multilayer, skyscraper, workshop, warehouse, waiting room, waiting room etc. Steel structure is very common.

[0003] However, steel structure as building material has some unavoidable defects in fire prevention, when steel structure meets open fire for a long time, its mechanical properties, such as yield point, tensile and elastic modulus, will sharply decrease due to temperature rise, and then lead to deformation, affect the normal use of steel structure. UTILITY MODEL CONTENT

[0004] In view of the above shortcomings of prior art, the utility model provides a punching device for motor end cover production and processing, which can effectively solve the problem that steel structure as building material in prior art will sharply decrease in yield point, tensile and elastic modulus due to temperature rise when it meets open fire for a long time.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a building fireproof steel structure, including steel structure body, the outer side of steel structure body is provided with fireproof layer, and the material of fireproof layer is fireproof asbestos, further including the bottom that is fixedly connected at the lower end of steel structure body, the upper end of water tank is fixedly provided with rectifier plate, the upper end of water tank is provided with two overflow grooves, the lower end of water tank is symmetrically provided with two limiting sliding grooves communicated with overflow groove, the limiting sliding groove is slidably connected with baffle, the outer side of water tank is symmetrically provided with two automatic water control assemblies;

[0006] The automatic water control assembly includes a heat conduction box fixedly connected to the side wall of the water tank, the heat conduction box is provided with a sliding cavity, two piston plates are slidably connected to the sliding cavity at intervals, the two piston plates are slidably connected to the inner peripheral wall of the sliding cavity, and an expansion liquid is arranged between the two piston plates, the opposite ends of the two piston plates are fixedly connected with telescopic members, and the connecting block is fixedly connected between the telescopic members and the baffle.

[0007] According to the above-mentioned building fireproof steel structure, the thickness of the rectifier plate gradually thins from the periphery to the middle, and the middle of the rectifier plate is provided with a water inlet.

[0008] According to the fireproof steel structure for building, the upper end of the rectifier plate is fixedly provided with a filter screen, and the plan view projection of the filter screen covers the plan view projection of the rectifier plate.

[0009] According to the fireproof steel structure for building, the telescopic part comprises fixed rods fixedly connected with the piston plates, sliding grooves are formed in the opposite ends of the two fixed rods, telescopic rods are limitingly and slidably connected in the sliding grooves, and the telescopic rods are fixedly connected with the connecting blocks.

[0010] According to the fireproof steel structure for building, when the telescopic part is in the shortest state, the baffle is located directly below the overflow groove.

[0011] According to the fireproof steel structure for building, the limit sliding groove is wide at the top and narrow at the bottom, the length between the two overflow grooves is equal to the thickness of the steel structure body, and the minimum distance between the two baffles is smaller than the distance between the two overflow grooves.

[0012] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0013] The utility model discloses a water tank is set up on the upper end of the steel structure body, and the utilization of rainwater is increased. No matter which side of the steel structure body meets the open fire, as long as the temperature of one of the heat conduction boxes rises, the kinetic energy of the molecular motion of the expansion liquid increases, the distance between the molecules increases, the volume of the object increases, and the expansion occurs. The two piston plates slide away from each other, the telescopic part slides away from each other, the two baffles move away from each other through the connecting block, the overflow groove is opened, the rainwater flows down along the fireproof asbestos on the outside of the steel structure body, the fireproof asbestos is wetted, and the steel structure body is protected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the utility model front view;

[0015] Figure 2 It is a structure schematic view of the utility model front view; Figure 1 It is a structure schematic view of the utility model front view;

[0016] Figure 3 It is a structure schematic view of the utility model front view; Figure 1 It is a structure schematic view of the utility model front view.

[0017] In the drawing: 1, base; 2, steel structure body; 3, water tank; 4, rectifier plate; 5, filter screen; 6, overflow groove; 7, limit sliding groove; 8, baffle; 9, heat conduction box; 10, sliding cavity; 11, fixed rod; 12, sliding groove; 13, telescopic rod; 14, connecting block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] The utility model will be further described below in combination with embodiments.

[0020] Embodiment: Refer to Figures 1 to 3 A building fireproof steel structure, including steel structure body 2, the outer side of steel structure body 2 is provided with fireproof layer, and the material of fireproof layer is fireproof asbestos, still including the fixed connection of base 1 at the lower end of steel structure body 2, the upper end of water tank 3 is fixedly arranged, the upper end of water tank 3 is open, the upper end of water tank 3 is fixedly provided with rectifier plate 4, the thickness of rectifier plate 4 is gradually thin from the periphery to the middle, and the middle of rectifier plate 4 is provided with water inlet, the middle of rectifier plate 4 is low and the periphery is high, which is beneficial to the drainage and collection of rainwater, and the collected rainwater is used as reserve water source, so that the rainwater is effectively utilized.

[0021] The upper end of rectifier plate 4 is fixedly provided with filter screen 5, and the top view projection of filter screen 5 covers the top view projection of rectifier plate 4, so that the rainwater can enter rectifier plate 4 only after being filtered by filter screen 5, and the rainwater entering water tank 3 can be completely filtered.

[0022] Two overflow grooves 6 are symmetrically arranged at the lower end of water tank 3, two limiting sliding grooves 7 in communication with overflow grooves 6 are symmetrically arranged at the lower end of water tank 3, limiting sliding grooves 7 are slidably connected with baffle plates 8, limiting sliding grooves 7 are arranged in a manner that the width of the upper end is larger than that of the lower end, limiting sliding grooves 7 can limit baffle plates 8, and the sealing effect of limiting sliding grooves 7 on overflow grooves 6 is ensured.

[0023] Two automatic water control assemblies are symmetrically arranged on the outer side of water tank 3, specifically, the automatic water control assembly comprises a heat conduction box 9 fixedly connected to the side wall of the water tank 3, the heat conduction box 9 is open to a sliding cavity 10, two piston plates are slidably connected in the sliding cavity 10, the two piston plates are slidably connected with the inner circumferential wall of the sliding cavity 10, and an expansion liquid is arranged between the two piston plates, the thermal expansion and contraction principle of the expansion liquid is mainly based on molecular motion theory and atomic motion change, when an object is heated, the temperature rise causes the kinetic energy of molecular motion to increase, the distance between molecules increases, so that the volume of the object increases, this phenomenon is called expansion, on the contrary, when the temperature of the object decreases, the temperature decreases, so that the kinetic energy of molecular motion decreases, the distance between molecules decreases, resulting in the volume of the object shrinking, i.e. shrinking.

[0024] The opposite ends of the two piston plates are fixedly connected with telescopic members, the telescopic members are fixedly connected with connecting blocks 14 between the baffle plates 8, the telescopic members comprise fixed rods 11 fixedly connected with the piston plates, the opposite ends of the two fixed rods 11 are provided with sliding grooves 12, the sliding grooves 12 are limitingly and slidingly connected with telescopic rods 13, and the telescopic rods 13 are fixedly connected with the connecting blocks 14, when the steel structure body 2 encounters open fire, under the roasting of the open fire, the temperature of the steel structure body 2 continuously rises, the temperature of the heat conduction box 9 on the side encountering the open fire rises, the temperature rise of the expansion liquid leads to the increase of kinetic energy of molecular motion, the distance between molecules increases, so that the volume of the object increases, expansion occurs, the two piston plates are pushed to slide away from each other, the two baffle plates 8 are driven to move away from each other through the connecting blocks 14, and the two baffle plates 8 are moved to a certain distance, the overflow groove 6 is opened, water flows downwards along the fireproof asbestos on the outer side of the steel structure body 2, the entire fireproof asbestos is wetted, and the steel structure body 2 is protected again.

[0025] When the telescopic members are in the shortest state, the baffle plates 8 are located directly below the overflow grooves 6, and the baffle plates 8 can block the overflow grooves 6 when the temperature is appropriate.

[0026] The length between the two overflow grooves 6 is equal to the thickness of the steel structure body 2, and the minimum distance between the two baffle plates 8 is less than the distance between the two overflow grooves 6, so that no matter which side of the steel structure body 2 encounters open fire, the temperature rise of the side can drive the two baffle plates 8 to move away from each other, so that the two overflow grooves 6 are opened, and water is discharged for fire prevention.

[0027] In the utility model, the working steps of the device are as follows:

[0028] Under the roasting of the open fire, the temperature of the steel structure body 2 continuously rises, the temperature of the heat conduction box 9 on the side encountering the open fire rises, the temperature rise of the expansion liquid leads to the increase of kinetic energy of molecular motion, the distance between molecules increases, so that the volume of the object increases, expansion occurs, the two piston plates are pushed to slide away from each other, when the telescopic members are in the shortest state, the baffle plates 8 are located directly below the overflow grooves 6, the piston plates drive the telescopic members to slide away from each other, the two baffle plates 8 are driven to move away from each other through the connecting blocks 14, the two baffle plates 8 are moved to a certain distance, the overflow groove 6 is opened, rainwater flows downwards along the fireproof asbestos on the outer side of the steel structure body 2, the entire fireproof asbestos is wetted, and the steel structure body 2 is protected again, as the telescopic members are arranged, no matter which side of the steel structure body 2 encounters open fire, as long as the temperature of one of the heat conduction boxes 9 rises, the two baffle plates 8 can be driven to move away from each other, so that the two overflow grooves 6 are opened, and water is discharged for fire prevention.

[0029] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A fireproof steel structure for building, comprising a steel structure body (2), the outer side of the steel structure body (2) is provided with a fireproof layer, and the material of the fireproof layer is fireproof asbestos, characterized in that, Also include in the lower end of the steel structure body (2) fixedly connected base (1), the upper end of the steel structure body (2) is fixedly provided with water tank (3), the upper end of the water tank (3) is provided with an opening, the upper end of the water tank (3) is fixedly provided with a rectifier plate (4), the lower end of the water tank (3) is symmetrically provided with two overflow grooves (6), the lower end of the water tank (3) is symmetrically provided with two limiting sliding grooves (7) communicated with the overflow grooves (6), the limiting sliding grooves (7) are slidably connected with the baffle (8), the outer side of the water tank (3) is symmetrically provided with two automatic water control assemblies; The automatic water control assembly comprises a heat conduction box (9) fixedly connected to the side wall of the water tank (3), the heat conduction box (9) is provided with a sliding cavity (10), the sliding cavity (10) is slidably connected with two piston plates, the two piston plates are slidably connected with the inner circumferential wall of the sliding cavity (10), and the two piston plates are provided with an expansion liquid therebetween, the opposite ends of the two piston plates are fixedly connected with telescopic members, and the telescopic members are fixedly connected with the connecting blocks (14) between the baffle (8).

2. A fire resistant steel building structure as claimed in claim 1, wherein: The thickness of the rectifier plate (4) gradually thins from the periphery to the middle, and the middle of the rectifier plate (4) is provided with a water inlet.

3. A fire resistant steel building structure according to claim 2, wherein: The upper end of the rectifier plate (4) is fixedly provided with a filter screen (5), and the top view projection of the filter screen (5) covers the top view projection of the rectifier plate (4).

4. The fire resistant steel building structure according to claim 1, wherein: The telescopic member comprises a fixed rod (11) fixedly connected with the piston plate, the opposite ends of the two fixed rods (11) are provided with sliding grooves (12), the sliding grooves (12) are limitingly and slidably connected with telescopic rods (13), and the telescopic rods (13) are fixedly connected with the connecting blocks (14).

5. A fire resistant steel building structure according to claim 4, wherein When the telescopic member is in the shortest state, the baffle (8) is located directly below the overflow groove (6).

6. The fire resistant steel building structure according to claim 1, wherein The limiting sliding groove (7) is provided with a width from top to bottom, the length between the two overflow grooves (6) is equal to the thickness of the steel structure body (2), and the minimum distance between the two baffles (8) is less than the distance between the two overflow grooves (6).

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