Flow-controllable indoor fire hydrant

Abstract

The application discloses a flow-controllable indoor fire hydrant, which comprises an indoor fire hydrant shell installed in an indoor wall, a first connecting part for connecting a water supply end is formed at the bottom of the indoor fire hydrant shell, a second connecting part for connecting an output is formed in the indoor fire hydrant shell, a first communication channel is arranged between the first connecting part and the second connecting part, a flow control block movably connected to the first communication channel is further arranged, and the cross section of the flow control block gradually or discontinuously decreases from top to bottom. The second connecting rod and the first connecting rod are arranged at a certain angle, the switch and the flow adjusting control of the indoor fire hydrant installed in the wall can be conveniently installed, the second connecting rod and the first fixed block are connected through a damping connecting shaft, rotation limiting can be realized, the cross section of the flow control block gradually or discontinuously decreases, the distance between the outer wall of the flow control block and the inner wall of the first communication channel can be adjusted, and flow control is realized.

Description

Technical Field

[0001] This invention relates to the field of indoor fire protection accessories and equipment, specifically to an indoor fire hydrant with controllable flow rate. Background Technology

[0002] Indoor fire hydrants are fixed indoor fire protection facilities in factories, warehouses, high-rise buildings, public buildings, and ships, supplying water to the fire scene through indoor piping networks. They are equipped with valves and typically installed in fire hydrant boxes, used in conjunction with fire hoses and nozzles. Currently, indoor fire hydrants are installed in fire hydrant boxes mounted vertically on the wall, making it difficult to turn the valves and apply force. Therefore, it is crucial to develop an indoor fire hydrant that is easy to open.

[0003] Different fire-fighting scenarios require different flow rates. For example, to extinguish small fires, a smaller flow rate can be used, which is also suitable for a smaller number of users. Therefore, it is very important to obtain an indoor fire hydrant with controllable flow rate. Summary of the Invention

[0004] To solve at least one of the above-mentioned technical problems, the present invention provides an indoor fire hydrant with controllable flow rate, comprising an indoor fire hydrant shell installed in an indoor wall, a first connecting part for connecting to a water supply end formed at the bottom of the indoor fire hydrant shell, a second connecting part for connecting to an output end formed at the bottom of the indoor fire hydrant shell, a first communicating channel provided between the first connecting part and the second connecting part, and a flow control block movably connected to the first communicating channel, a first connecting rod connected to the flow control block, the first connecting rod extending from the top of the indoor fire hydrant shell and threadedly connected to the top of the indoor fire hydrant shell; a first fixing block fixed to the indoor wall, a second connecting rod rotatably connected to the first fixing block, an L-shaped connecting rod fixed to the first connecting rod, one end of the L-shaped connecting rod fixedly connected to the first connecting rod, and the other end fixedly connected to a vertical connecting member, a first groove formed on the second connecting rod, a first rotating shaft fixed between the two inner walls of the first groove, a cylinder fixed to the vertical connecting member, an elongated hole formed on the cylinder, and the first rotating shaft passing through the elongated hole;

[0005] The cross-section of the flow control block decreases sequentially or intermittently from top to bottom of the first connecting channel.

[0006] Through the above technical solution, the second connecting rod and the first connecting rod have a certain angle, which can facilitate the switching and flow regulation control of indoor fire hydrants installed in the wall. The second connecting rod and the first fixing block are connected by a damping connecting shaft, which can realize rotation limit. The cross-section of the flow control block decreases sequentially or intermittently from the top to the cross-section of the first connecting channel, which can adjust the distance between the outer wall of the flow control block and the inner wall of the first connecting channel, so as to achieve controllable flow.

[0007] As a preferred embodiment, the second connecting rod is fixed to a turntable located outside the first fixing block.

[0008] The above technical solution reduces the force required for rotation and increases the ease of adjustment.

[0009] As a preferred embodiment, the L-connecting rod includes two branch rods, which are integrally formed and are at acute or right angles, or integrally formed by an arc-shaped connector.

[0010] Through the above technical solution, the L-connecting rod includes two branch rods, which are at acute angles or right angles, or are integrally formed by arc-shaped connectors. The arc-shaped connectors can increase the tensile adaptability and service life, and can realize angle transmission, which is convenient for driving vertically installed indoor fire hydrants located in the wall.

[0011] As a preferred embodiment, the bottom of the first connecting rod is integrally formed with a first sphere, and the top of the flow control block is integrally formed with a first spherical groove that mates with the first sphere.

[0012] Through the above technical solution, the first sphere can achieve universal joint rotation within the first spherical groove.

[0013] As a preferred embodiment, a first limiting ring is fixed on the inner wall of the first connecting channel, and an anti-suction ring is integrally formed on the top inner wall of the first limiting ring.

[0014] Through the above technical solution, the anti-suction ring is tangent to the outside of the flow control block, that is, the contact part is linear and the contact is small, which can prevent it from adhering to the first connecting channel.

[0015] As a preferred embodiment, the flow control block is provided with a sleeve with the same shape as its outer periphery. An extension is integrally formed on the sleeve. The flow control block has several movable cavities. The extension is inserted into the movable cavity. An elastic element is installed between the extension and the movable cavity.

[0016] Through the above technical solution, the elastic element can buffer the contact between the present invention and the first connecting channel when the device is turned off, rather than making a hard contact, thereby increasing the service life of the present invention.

[0017] As a preferred embodiment, the elastic element includes an outer spherical rubber ring and an inner spherical rubber ring integrally formed on the inner wall of the outer spherical rubber ring. Both the inner and outer spherical rubber rings are provided with a socket for inserting the extension element. The inner wall of the socket is provided with a snap-fit ​​protrusion ring, and the socket is provided with a snap-fit ​​groove ring that cooperates with the snap-fit ​​protrusion ring.

[0018] As a preferred embodiment, a rubber connecting piece is integrally formed between the outer wall of the inner spherical rubber ring and the inner wall of the outer spherical rubber ring.

[0019] As a preferred embodiment, the rubber connecting piece is crescent-shaped.

[0020] Of particular note regarding the above technical solutions are the extension and the movable cavity, which are vertically oriented for easy installation, or slightly tilted towards their central axis, for example, at an angle of 10 degrees, to facilitate stability after installation.

[0021] Compared with the prior art, the advantages of the present invention are as follows: The present invention has a simple structure, and the second connecting rod and the first connecting rod have a certain angle, which can facilitate the switching and flow regulation control of indoor fire hydrants installed in the wall. The second connecting rod and the first fixing block are connected by a damping connecting shaft, which can realize rotation limit. The cross-section of the flow control block decreases sequentially or intermittently from the top to the cross-section of the first connecting channel, which can adjust the distance between the outer wall of the flow control block and the inner wall of the first connecting channel, so as to achieve controllable flow. Attached Figure Description

[0022] Figure 1 This is a cross-sectional schematic diagram of the present invention. Figure 1 ;

[0023] Figure 2 Cross-sectional schematic diagram of another embodiment of the present invention Figure 2 ;

[0024] Figure 3 for Figure 1 Enlarged view of point A;

[0025] Figure label:

[0026] 1-Indoor fire hydrant casing; 2-First connecting part; 3-Second connecting part; 4-First connecting channel; 5-Flow control block; 6-First connecting rod; 7-First fixing block; 8-Second connecting rod; 9-L-connecting rod; 10-Vertical connector; 11-First groove; 12-First rotating shaft; 13-Cylinder; 14-Elongated hole;

[0027] 15- Turntable; 16- First sphere; 17- First spherical groove;

[0028] 18-First limiting ring; 19-Anti-suction ring; 20-Sleeve; 21-Extension; 22-Moving cavity; 23-Elastic element; 24-Outer spherical rubber ring; 25-Inner spherical rubber ring; 26-Snap-fit ​​protrusion ring; 27-Snap-fit ​​groove ring. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention will be described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present invention, and are merely a part of the embodiments of the present invention. The specific and direct descriptions of related structures are only for the convenience of understanding the present invention, and the specific features do not necessarily or directly limit the scope of the present invention.

[0030] Referring to the accompanying drawings, the present invention adopts the following technical solution: a flow-controllable indoor fire hydrant, comprising an indoor fire hydrant housing 1 installed in an indoor wall, wherein a first connecting portion 2 is formed at the bottom of the indoor fire hydrant housing 1 for connecting to the water supply end, and a second connecting portion 3 is formed at the bottom of the indoor fire hydrant housing 1 for connecting to the output end, wherein a first connecting channel 4 is provided between the first connecting portion 2 and the second connecting portion 3, and further comprising a flow control block 5 movably connected to the first connecting channel 4, wherein a first connecting rod 6 is connected to the flow control block 5, and the first connecting rod 6 extends from the top of the indoor fire hydrant housing 1 and connects to the water supply end. The top of the inner fire hydrant shell 1 is threaded; a first fixing block 7 is fixed on the indoor wall, a second connecting rod 8 is rotatably connected to the first fixing block 7, an L-connecting rod 9 is fixed on the first connecting rod 6, one end of the L-connecting rod 9 is fixedly connected to the first connecting rod 6, and the other end is fixedly connected to a vertical connecting piece 10, a first groove 11 is provided on the second connecting rod 8, a first rotating shaft 12 is fixed between the two inner walls of the first groove 11, a cylinder 13 is fixed on the vertical connecting piece 10, an elongated hole 14 is provided on the cylinder 13, and the first rotating shaft 12 passes through the elongated hole 14;

[0031] The cross-section of the flow control block 5 decreases sequentially or intermittently from top to bottom towards the first connecting channel 4.

[0032] Through the above technical solution, the second connecting rod 8 and the first connecting rod 6 have a certain angle, which can facilitate the switching and flow regulation control of indoor fire hydrants installed in the wall. The second connecting rod 8 and the first fixing block 7 are connected by a damping connecting shaft, which can realize rotation limit. The cross-section of the flow control block 5 decreases sequentially or intermittently from top to bottom of the cross-section of the first connecting channel 4, which can adjust the distance between the outer wall of the flow control block 5 and the inner wall of the first connecting channel 4, so as to achieve controllable flow.

[0033] As a preferred embodiment, the second connecting rod 8 is fixed to a turntable 15 on the outside of the first fixing block 7.

[0034] Through the above technical solution, the turntable 15 can reduce the force required for rotation and increase the ease of adjustment.

[0035] As a preferred embodiment, the L connecting rod 9 includes two branch rods, which are integrally formed and are at acute or right angles, or integrally formed by an arc-shaped connector.

[0036] Through the above technical solution, the L connecting rod 9 includes two branch rods, which are at acute angles or right angles, or are integrally formed by arc-shaped connectors. The arc-shaped connectors can increase the tensile adaptability and service life, and can realize angle transmission, which is convenient for driving the vertically installed indoor fire hydrants located in the wall.

[0037] As a preferred embodiment, the bottom of the first connecting rod 6 is integrally formed with a first sphere 16, and the top of the flow control block 5 is integrally formed with a first spherical groove 17 that mates with the first sphere 16.

[0038] Through the above technical solution, the first sphere 16 can achieve universal joint rotation within the first spherical groove 17.

[0039] As a preferred embodiment, a first limiting ring 18 is fixed on the inner wall of the first connecting channel 4, and an anti-suction ring 19 is integrally formed on the top inner wall of the first limiting ring 18.

[0040] Through the above technical solution, the anti-suction ring 19 is tangent to the outside of the flow control block 5, that is, the contact part is linear and the contact is small, which can prevent it from adhering to the first connecting channel 4.

[0041] As a preferred embodiment, the flow control block 5 is provided with a sleeve 20 with the same shape as its outer periphery. An extension 21 is integrally formed on the sleeve. The flow control block 5 is provided with a plurality of movable cavities 22. The extension 21 is inserted into the movable cavity 22. An elastic member 23 is installed between the extension 21 and the movable cavity 22.

[0042] Through the above technical solution, the elastic element 23 can buffer the contact between the present invention and the first connecting channel 4 when it is turned off, rather than making a hard contact, thereby increasing the service life of the present invention.

[0043] As a preferred embodiment, the elastic member 23 includes an outer spherical rubber ring 24 and an inner spherical rubber ring 25 integrally formed on the inner wall of the outer spherical rubber ring 24. Both the inner spherical rubber ring 25 and the outer spherical rubber ring 24 are provided with a socket for the insertion of the extension member 21. The inner wall of the socket is provided with a snap-fit ​​protrusion ring 26, and the socket is provided with a snap-fit ​​groove ring 27 that cooperates with the snap-fit ​​protrusion ring 26.

[0044] As a preferred embodiment, a rubber connecting piece is integrally formed between the outer wall of the inner spherical rubber ring 25 and the inner wall of the outer spherical rubber ring 24.

[0045] As a preferred embodiment, the rubber connecting piece is crescent-shaped.

[0046] Of particular note regarding the above technical solutions are the extension 21 and the movable cavity 22, which are vertically oriented for easy installation, or slightly tilted towards their central axis, for example, at an angle of 10 degrees, to facilitate their stability after installation.

[0047] Compared with the prior art, the advantages of the present invention are as follows: The present invention has a simple structure, and the second connecting rod 8 and the first connecting rod 6 have a certain angle, which can facilitate the switching and flow regulation control of indoor fire hydrants installed in the wall. The second connecting rod 8 and the first fixing block 7 are connected by a damping connecting shaft, which can realize rotation limit. The cross-section of the flow control block 5 decreases sequentially or intermittently from the top to the cross-section of the first connecting channel 4, which can adjust the distance between the outer wall of the flow control block 5 and the inner wall of the first connecting channel 4, so as to achieve controllable flow.

[0048] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0049] In the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A flow-controlled indoor fire hydrant, characterized in that: The system includes an indoor fire hydrant housing (1) installed inside an interior wall. The bottom of the indoor fire hydrant housing (1) forms a first connection part (2) connecting to the water supply end, and the bottom of the indoor fire hydrant housing (1) forms a second connection part (3) connecting to the output end. A first connecting channel (4) is provided between the first connection part (2) and the second connection part (3). The system also includes a flow control block (5) movably connected to the first connecting channel (4). A first connecting rod (6) is connected to the flow control block (5), and the first connecting rod (6) extends from the top of the indoor fire hydrant housing (1) and is threadedly connected to the top of the indoor fire hydrant housing (1). The interior wall... A first fixing block (7) is fixed on the wall, and a second connecting rod (8) is rotatably connected to the first fixing block (7). An L-connecting rod (9) is fixed on the first connecting rod (6). One end of the L-connecting rod (9) is fixedly connected to the first connecting rod (6), and the other end is fixedly connected to a vertical connecting piece (10). A first groove (11) is provided on the second connecting rod (8). A first rotating shaft (12) is fixed between the two inner walls of the first groove (11). A cylinder (13) is fixed on the vertical connecting piece (10). An elongated hole (14) is provided on the cylinder (13). The first rotating shaft (12) passes through the elongated hole (14). The cross-section of the flow control block (5) decreases sequentially or intermittently from top to bottom of the first connecting channel (4).

2. The indoor fire hydrant with controllable flow rate according to claim 1, characterized in that: The second connecting rod (8) is located outside the first fixing block (7) and a turntable (15) is fixed thereon.

3. The indoor fire hydrant with controllable flow rate according to claim 1, characterized in that: The L connecting rod (9) includes two branch rods, which are integrally formed and are at acute or right angles, or integrally formed by arc-shaped connectors.

4. The indoor fire hydrant with controllable flow rate according to claim 1, characterized in that, The bottom of the first connecting rod (6) is integrally formed with a first sphere (16), and the top of the flow control block (5) is integrally formed with a first spherical groove (17) that mates with the first sphere (16).

5. The indoor fire hydrant with controllable flow rate according to claim 1, characterized in that: A first limiting ring (18) is fixed on the inner wall of the first connecting channel (4), and an anti-suction ring (19) is integrally formed on the top inner wall of the first limiting ring (18).

6. The indoor fire hydrant with controllable flow rate according to claim 1, characterized in that: The flow control block (5) has a sleeve (20) with the same shape as its outer periphery. An extension (21) is integrally formed on the sleeve. The flow control block (5) has several movable cavities (22). The extension (21) is inserted into the movable cavity (22). An elastic element (23) is installed between the extension (21) and the movable cavity (22).

7. The indoor fire hydrant with controllable flow rate according to claim 6, characterized in that: The elastic element (23) includes an outer spherical rubber ring (24) and an inner spherical rubber ring (25) integrally formed on the inner wall of the outer spherical rubber ring (24). Both the inner spherical rubber ring (25) and the outer spherical rubber ring (24) are provided with a socket for the insertion of the extension (21). The inner wall of the socket is provided with a snap-fit ​​protrusion ring (26), and the socket is provided with a snap-fit ​​groove ring (27) that cooperates with the snap-fit ​​protrusion ring (26).

8. The indoor fire hydrant with controllable flow rate according to claim 7, characterized in that: A rubber connecting piece is integrally formed between the outer wall of the inner spherical rubber ring (25) and the inner wall of the outer spherical rubber ring (24).

9. The indoor fire hydrant with controllable flow rate according to claim 8, characterized in that: The rubber connecting piece is crescent-shaped.

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