Outdoor fixed fire hydrant

Abstract

The present application relates to the field of fire hydrant, especially to an outdoor fixed fire hydrant. When the present application suffers from a slight front collision, the outer protection plate is first touched, the connecting rod is opened outward, the first sliding block is slid in the first sliding groove, the first spring is used to push the first sliding block to perform a certain buffering, the damage to the internal protection shell is reduced, then the mounting ring is arranged on the opposite side of the protection shell and the outer protection plate, the fourth spring is arranged between the mounting rings, so that after suffering from the front impact, the fourth spring pushes the outer protection plate, more effective buffering is achieved, the fire hydrant body is protected, the outer protection plate can be hollow, and the inside is filled with rubber, so that the buffering force of the outer protection plate as a whole is increased, and in the case that the inside of the outer protection plate is hollow and filled with rubber, the outer protection plate is not too hard, so that the vehicle suffering from a slight impact can be avoided from being damaged more seriously.

Description

Technical Field

[0001] This invention relates to the field of fire hydrant technology, and in particular to an outdoor fixed fire hydrant. Background Technology

[0002] Fire hydrants are fixed firefighting tools, found throughout cities, providing firefighters with water for extinguishing fires during rescue operations. Their main functions are to control combustibles, isolate accelerants, and eliminate ignition sources. Fire hydrants primarily allow fire trucks to draw water from municipal water supply networks or outdoor fire water supply networks for firefighting. They can also be directly connected to hoses and nozzles for firefighting. Outdoor fire hydrant systems are one of the most important firefighting facilities for extinguishing fires.

[0003] Currently, most existing fire hydrants are directly exposed to the outside environment. In daily life, vehicles are prone to collisions with fire hydrants, causing them to be directly impacted, which can easily lead to damage and leakage. Furthermore, direct contact with a certain impact force can cause the exposed fire hydrant body to break, resulting in a large amount of water being sprayed out and wasting water resources. Summary of the Invention

[0004] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an outdoor fixed fire hydrant to solve the existing problems.

[0006] To achieve the above objectives, the technical solution of the present invention is: an outdoor fixed fire hydrant, comprising:

[0007] Fire hydrant body;

[0008] The inner protective component includes a protective shell, which is installed on the upper part of the fire hydrant body and covers the exposed fire hydrant body. The outer walls of the protective shell are provided with first sliding grooves on both sides. The first sliding grooves are provided with first sliders at both ends. The side walls of the first sliders are provided with first springs and the first sliding grooves. The end faces of the first sliders are provided with first connecting grooves. The outer walls of the protective shell are provided with first water outlets at positions opposite to the water outlets of the fire hydrant body.

[0009] An outer protective assembly includes an outer protective plate. Connecting frames are provided on both sides of the inner wall of the outer protective plate. A second connecting groove is provided on the end face of the connecting frame. The second connecting groove is connected to the first connecting groove through a connecting rod. The two ends of the connecting rod are movably connected to the first connecting groove and the second connecting groove, respectively, and the two connecting rods are arranged in a figure-eight shape. A second water outlet is provided on the outer protective plate at a position opposite to the first water outlet.

[0010] A flow interceptor is installed at the inlet end of the fire hydrant body.

[0011] In some embodiments, the flow-blocking device includes a flow-blocking housing with a flow-blocking layer inside. The flow-blocking housing is installed at the water inlet end of the fire hydrant body. A connection port is provided in the middle of the end face of the flow-blocking layer. An extension pipe is provided at the bottom of the connection port. An installation groove is provided on one side of the connection port. Second sliding grooves are provided on both sides of the bottom of the installation groove. A second spring is installed at one end of the second sliding groove. A second slider is connected to one end of the second spring. The second slider and the second sliding groove are slidably connected. An opening is provided between the connection port and the extension pipe. A blocking plate is provided in the opening. The blocking plate is connected to the second slider on both sides. A fixing plate is provided on the side wall of the blocking plate. A placement groove is provided on the end face of the fixing plate. A third spring is provided in the placement groove. A pressing plate is provided on the top of the third spring. A pressing rod is provided on the top of the pressing plate. The pressing rod is connected to the protective housing. A matching sealing plate is provided on the top of the installation groove. Both the sealing plate and the flow-blocking housing are provided with through holes for the pressing rod to pass through.

[0012] In some embodiments, a support frame is installed on the outer wall of the fire hydrant body. The support frame includes a fixing ring installed on the fire hydrant body. Support rods are provided around the fixing ring. The support rods are respectively connected to the inner wall of the protective shell for support. The support frame is connected to the protective shell. The top of the pressing rod is connected to the bottom of the support frame.

[0013] In some embodiments, a release assembly is provided at the bottom of each of the four sides of the inner wall of the protective housing. The release assembly includes a release housing, which is installed on the inner wall of the protective housing. A fifth spring is provided in the top of the release housing, and a release plate is connected to the bottom of the fifth spring. The release plate is mounted in the middle of the release housing by a plastic bracket, and the fifth spring is in a stretched state. A groove is provided on the outer wall of the protective housing at the corresponding position of the release housing. A mounting hole communicating with the release housing is provided in the groove, and the mounting hole corresponds to the position of the plastic bracket. A pressing rod is installed on the mounting hole. A striking head is provided on one end face of the pressing rod inside the release housing, and an impact plate is provided on the other end. A sixth spring is provided between the bottom of the impact plate and the groove. The top of the pressing rod is connected to the groove.

[0014] In some embodiments, the intercepting layer has four layers, and the mounting grooves are arranged in four directions from top to bottom. The pressing rods are respectively installed, and one pressing rod corresponds to one layer of the intercepting layer. The rest pass through to the next layer until the last one is connected. The top of the intercepting housing also includes fixing blocks in four directions. The fixing blocks are located on the through holes. The through holes are straight slots. The fixing blocks and the through holes are provided with straight slots corresponding to the through holes at their respective positions. The top of the fixing blocks is provided with limiting plates. The limiting plates are provided with limiting holes for the pressing rods to pass through. The side walls of the fixing blocks are provided with through holes. The pressing rods and the through holes are also provided with matching holes at their respective positions.

[0015] In some embodiments, the pressing rod includes a first pressing rod and a second pressing rod, and each of the first pressing rod and the second pressing rod has a fourth connecting groove at one end, and the fourth connecting groove is connected by a plastic rod.

[0016] In some embodiments, the outer edge of the first water outlet and the second water outlet are provided with corresponding mounting rings. The opposite side of the mounting ring is provided with a connecting groove for mounting the fourth spring. The two ends of the fourth spring are respectively installed into the connecting grooves at both ends. The outer protective plate is arc-shaped. The surface of the impact plate is provided with the same arc shape as the outer protective plate. The outer protective plate is hollow and filled with rubber.

[0017] In some embodiments, the top of the connector is provided with a third connecting groove, and the bottom of the extension tube is provided with a connecting tube that matches the third connecting groove for connection.

[0018] In some embodiments, the top of the intercepting layer is provided with limiting grooves, the bottom of the intercepting layer is provided with limiting blocks that match the limiting grooves for connection, and the four corners of the intercepting layer are also provided with threaded holes.

[0019] In some embodiments, one end of the blocking plate is provided with a waterproof plate, which has water passage holes that match the opening.

[0020] By adopting the above technical solution, the beneficial effects of the present invention are:

[0021] 1. When a fire hydrant suffers a minor frontal impact, it will first contact the outer protective plate. Upon contact, the connecting rod opens outward, allowing the first slider to slide in the first groove. The first spring then cushions the first slider, reducing damage to the inner protective shell. A mounting ring is installed on the opposite side of the protective shell and the outer protective plate, with a fourth spring between the rings. This allows the fourth spring to further cushion the impact, protecting the fire hydrant. The outer protective plate is also hollow and filled with rubber to increase its overall cushioning force. Furthermore, the hollow interior and rubber filling prevent the outer protective plate from becoming too rigid, thus preventing minor impacts from causing more severe damage in subsequent collisions.

[0022] 2. When subjected to a heavy frontal impact, but the impact force only breaks or deforms the outer protective plate while the protective shell remains intact, the connecting rod can be directly removed from the first slide groove, or if there is sufficient space, it can be directly removed from the first slider, and then a new outer protective plate can be installed.

[0023] 3. When the upper part of the fire hydrant body detaches due to a severe impact, the water flow can be blocked by activating the interception device. Specifically, after the fire hydrant body detaches, the pressing rod, which is installed at the bottom of the support frame, may bend or break after a severe impact. The tightened third spring will then lift the pressing plate, causing the broken part of the pressing rod to detach from the placement groove. Then, the tightened second spring will push the second slider to move the blocking plate to the opening, thereby closing the opening and preventing water from spraying out. This effectively avoids a large waste of water resources if maintenance is not timely.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0025] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0026] To make the above and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0028] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0030] Figure 1 The above are schematic diagrams of the structure of fire hydrants according to some embodiments of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the internal protection component according to some embodiments of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure inside the mounting slot in some embodiments of the present invention;

[0033] Figure 4 This is a schematic diagram of the intercepting layer structure in some embodiments of the present invention;

[0034] Figure 5 This is a cross-sectional view of the intercepting layer structure according to some embodiments of the present invention;

[0035] Figure 6 The following is an exploded view of the structure of the flow interception device according to some embodiments of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the blocking plate according to some embodiments of the present invention;

[0037] Figure 8 This is a schematic diagram of the support frame structure according to some embodiments of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure of a detachable component according to some embodiments of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Fire hydrant body; 11. Support frame; 111. Fixing ring; 112. Support rod;

[0041] 2. Inner protective component; 21. Protective outer shell; 22. First slide groove; 23. First slider; 24. First spring; 25. First connecting groove; 26. First water outlet; 27. Mounting ring; 28. Fourth spring;

[0042] 3. External protective assembly; 31. External protective plate; 32. Connecting frame; 33. Second connecting groove; 34. Connecting rod; 35. Second water outlet;

[0043] 4. Interception device; 41. Interception shell; 411. Interception layer; 412. Limiting groove; 413. Threaded hole; 414. Limiting block; 415. Fixing block; 416. Limiting plate; 417. Limiting hole; 418. Perforation; 42. Connection port; 421. Third connecting groove; 43. Extension tube; 431. Connecting tube; 44. Mounting groove; 441. Sealing plate; 442. Through hole; 45. Second sliding groove; 46. Second spring; 47. Second slider; 48. Opening; 49. Blocking plate; 491. Fixing plate; 492. Placement groove; 493. Third spring; 494. Pressing plate; 495. Pressing rod; 4951. First pressing rod; 4952. Second pressing rod; 4953. Fourth connecting groove; 4954. Plastic rod; 496. Waterproof plate; 497. Water passage hole;

[0044] 5. Detachment component; 51. Detachment housing; 52. Fifth spring; 53. Detachment plate; 54. Plastic retainer; 55. Groove; 551. Mounting hole; 57. Pressing rod; 58. Striking head; 59. Impact plate; 591. Sixth spring. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0046] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0050] Reference Figure 1-9 This invention provides an outdoor fixed fire hydrant, comprising a fire hydrant body 1, an inner protective component 2, an outer protective component 3, and a flow-blocking device 4. The inner protective component 2 includes a protective shell 21, which is installed on the upper part of the fire hydrant body 1 and encloses the exposed fire hydrant body 1. The outer walls of the protective shell 21 are provided with first sliding grooves 22 on both sides, and first sliders 23 are installed at both ends of the first sliding grooves 22. A first spring 24 is installed between the side wall of the first slider 23 and the first sliding groove 22. The end faces of the first sliders 23 are provided with first connecting grooves 25. The outer walls of the protective shell 21 are provided with… A first water outlet 26 is provided at a position opposite to the water outlet of the fire hydrant body 1; the outer protective component 3 includes an outer protective plate 31, and connecting brackets 32 are provided on both sides of the inner wall of the outer protective plate 31. A second connecting groove 33 is provided on the end face of the connecting bracket 32. The second connecting groove 33 is connected to the first connecting groove 25 through a connecting rod 34. The two ends of the connecting rod 34 are movably connected to the first connecting groove 25 and the second connecting groove 33 respectively, and the two connecting rods 34 are in a figure-eight shape. A second water outlet 35 is provided at a position opposite to the first water outlet 26 on the outer protective plate 31; the intercepting device 4 is provided at the water inlet end of the fire hydrant body 1.

[0051] Specifically, after the fire hydrant body 1 is installed in the water inlet pipe, an inner protective component 2 is installed on the exposed fire hydrant body 1 for protection. Then, an outer protective component 3 is installed on the outer wall of the inner protective component 2 to achieve a multi-layered protection effect, making the fire hydrant less susceptible to damage. In the event of an impact, the outer protective plate 31 can provide external protection. Upon contact, the connecting rod 34 opens outward, allowing the first slider 23 to slide in the first groove 22. The first spring 24 then presses against the first slider 23 to provide a certain buffer, reducing damage to the inner protective shell 21. If the entire fire hydrant body 1 is damaged, the flow interceptor 4 is activated to intercept the flow and prevent a large amount of water from spraying out. The water outlet is provided to facilitate water pipe connection and water access.

[0052] The specific details are as follows:

[0053] Scenario 1:

[0054] When a fire hydrant suffers a minor frontal impact, it will first touch the outer protective plate 31. Upon contact, the connecting rod 34 opens outward, allowing the first slider 23 to slide in the first groove 22. The first spring 24 then pushes against the first slider 23 to provide some cushioning, reducing damage to the inner protective shell 21. Then, by setting an installation ring 27 on the opposite side of the protective shell 21 and the outer protective plate 31, and setting a fourth spring 28 between the installation rings 27, the fourth spring 28 can push against the outer protective plate 31 after a frontal impact, providing more effective cushioning to protect the fire hydrant body 1. The outer protective plate 31 is also hollow and filled with rubber to increase the overall cushioning force of the outer protective plate 31. At the same time, the hollow interior of the outer protective plate 31, filled with rubber, will not make the outer protective plate 31 too hard, thus preventing vehicles that have suffered minor impacts from suffering more serious damage when they do collide.

[0055] In the event of a minor side impact, the outer protective plate 31 can be made into an arc shape to reduce the overall contact area between the impacting vehicle and the outer protective plate 31. This allows the impacting vehicle to scrape along the surface of the outer protective plate 31, protecting the fire hydrant while also preventing the impacting vehicle from suffering serious damage.

[0056] Scenario 2:

[0057] When subjected to a heavy frontal impact, but the impact force only breaks or deforms the outer protective plate 31 while the protective shell 21 remains intact, the connecting rod 34 can be directly removed from the first slide groove 22, or if there is sufficient space, it can be directly removed from the first slider 23, and then a new outer protective plate 31 can be installed.

[0058] If both the outer protective plate 31 and the protective shell 21 are deformed, and the fire hydrant body 1 is not damaged, the inner and outer protective components can be replaced. Alternatively, a support frame 11 can be added to fix the protective shell 21 and provide it with good support, preventing it from directly impacting the fire hydrant body 1 and causing serious damage to it.

[0059] If the support frame 11 is intact after the impact, it can be used without replacing it. Only the damaged inner and outer protective components need to be replaced. The support frame 11 can be set as two semi-circular rings forming a fixed ring 111, which is installed on the outer wall of the fire hydrant body 1 for easy disassembly and replacement. Support rods 112 are set around the fixed ring 111 to support the four support surfaces of the protective shell 21, which can also play an effective buffering role in the event of an impact to protect the fire hydrant body 1. In addition, the support rods 112 are connected to the protective shell 21 by bolts, so that the support frame 11 can be replaced without removing it if it is not damaged. This ensures that replacement is not necessary when possible, thus saving replacement costs.

[0060] Scenario 3:

[0061] When the upper part of the fire hydrant body 1 is detached due to a very severe impact, the water can be blocked by activating the flow-stopping device 4. Specifically, after the fire hydrant body 1 is detached, since the pressing rod 495 is installed at the bottom of the support frame 11, it will bend or break after a severe impact. The pressing plate 494 can be lifted by the tightened third spring 493, which will cause the broken part of the pressing rod 495 to be removed from the placement groove 492. Then, the second slider 47 is pushed by the tightened second spring 46 to slide in the second slide groove 45, so that the blocking plate 49 can move to the opening 48 to close the opening 48 and prevent water from spraying out. This can effectively avoid a large amount of water wastage when maintenance is not timely.

[0062] Then, a waterproof plate 496 is integrally connected to one end of the blocking plate 49. A water passage hole 497 matching the opening 48 is provided on the waterproof plate 496 so that water can flow through when the blocking plate 49 is not activated. The waterproof plate 496 can also block the opening 48 to connect the connection port 42 and the extension pipe 43. This can prevent water from flowing into the mounting groove 44 from the opening 48, which would cause the second spring 46 to be damaged due to long-term immersion in water. A sealing ring can also be provided at the water passage hole 497 to increase the sealing performance. Then, a sealing plate 441 is installed on the top of the mounting groove 44 to seal it and prevent debris from falling into it and blocking the groove. This way, the sealing plate 441 can be opened later for easy replacement of the spring or maintenance. The sealing plate 441 should also be provided with a corresponding through hole 442 to facilitate the insertion of the pressing rod 495.

[0063] To prevent the pressing rod 495 from detaching after impact, a detachment component 5 is provided. The detachment component 5 includes a detachment housing 51 located on the inner wall of the protective housing 21. A detachment plate 53, installed inside the detachment housing 51 via a plastic fixing bracket 54, is connected to the pressing rod 495 to hold the blocking plate 49 in place. Upon severe frontal impact, the outer protective plate 31 will push the impact plate 59 into the groove 55. Simultaneously, the sixth spring 591 provides some cushioning. Then, the impact plate 59 drives the pressing rod 57, mounted on the mounting hole 551, to slide inwards. The striking head 58 on the pressing rod 57 then impacts the plastic fixing bracket 54, damaging it. The fifth spring 52 pulls the release plate 53 upward, which in turn moves the pressing rod 495 upward, allowing the pressing rod 495 to better disengage from the placement groove 492, thus better avoiding jamming. At the same time, the blocking plate 49 can be activated in advance to cut off the flow. Alternatively, the pressing rod 495 can be configured as a first pressing rod 4951 and a second pressing rod 4952. Each of the first pressing rod 4951 and the second pressing rod 4952 has a fourth connecting groove 4953 at one end. The fourth connecting groove 4953 is connected by a plastic rod 4954, and the connection point is located on the ground. This way, it can break better than bend upon impact, which also allows the pressing rod 495 to disengage from the placement groove 492 more effectively.

[0064] A fixing block 415 can be set on the top of the intercepting housing 41. A hole matching the through hole 442 is set on the fixing block 415. This can protect the pressing rod 495 in the ground and allow it to be released better. After the fire hydrant is installed, the pressing rod 495 in the ground will not be unable to move. Therefore, during the installation process, the top of the fixing block 415 and the ground need to be on the same plane. The reason for setting the through hole 442 as a straight groove is that the pressing rod 495 can be inserted into the placement groove 492 in the fixing plate 491. Then, the pressing rod 495 drags the fixing plate 491 to drive the blocking plate 49 to reset. Then, the corresponding rod is inserted into the through hole 418 on the side wall of the fixing block 415 to fix the pressing rod 495. When the upper limit plate 416 is covered, the pressing rod 495 passes through the limit hole 417 to prevent movement. At the same time, it is connected to another pressing rod 495. After the connection is completed, the rod can be pulled out of the fixing block 415 for continued use of interception.

[0065] Multiple intercepting layers 411 can be installed on the intercepting shell 41, preferably four layers. The mounting slots 44 can be distributed in the four directions of east, south, west, and north. This allows the pressing rod 495 to be installed at the bottom of the support frame 11 in four directions. The pressing rod 495 can then bypass the mounting slots 44 and penetrate to the next intercepting layer 411. In addition, matching limiting slots 412 and limiting blocks 414 can be set at the top and bottom edges of each intercepting layer 411 for limiting connection. The cover plate and bottom of the intercepting shell 41 also need to be set with corresponding limiting slots 412 and limiting blocks 414 to facilitate installation and limiting. Finally, matching bolts are inserted into the threaded holes 413 for locking connection. This multi-layer setting ensures that there is one layer for effective interception when any side is impacted. It also avoids the problem that if the fire hydrant body 1 is not completely broken when the impact surface is not on the side of the pressing rod 495, the pressing rod 495 will not break and the interception will not be possible. Multi-layer interception can also ensure a good interception effect.

[0066] A third connecting groove 421 can be provided at the top of the connecting port 42, and a connecting pipe 431 matching the third connecting groove 421 can be provided at the bottom of the extension pipe 43 for connection. This can ensure that water will not leak from the connection point when the upper and lower intercepting layers 411 are connected, ensuring good sealing. The connection point of the intercepting shell 41 also needs to be set in this way, and the intercepting shell 41 can be connected to the fire hydrant body 1 and the water inlet pipe through the flange, which is convenient for subsequent replacement and use.

[0067] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0068] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0069] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. An outdoor fixed fire hydrant, characterized in that, include: Fire hydrant body; The inner protective component includes a protective shell, which is installed on the upper part of the fire hydrant body and covers the exposed fire hydrant body. The outer walls of the protective shell are provided with first sliding grooves on both sides. The first sliding grooves are provided with first sliders at both ends. The side walls of the first sliders are provided with first springs and the first sliding grooves. The end faces of the first sliders are provided with first connecting grooves. The outer walls of the protective shell are provided with first water outlets at positions opposite to the water outlets of the fire hydrant body. An outer protective assembly includes an outer protective plate. Connecting frames are provided on both sides of the inner wall of the outer protective plate. A second connecting groove is provided on the end face of the connecting frame. The second connecting groove is connected to the first connecting groove through a connecting rod. The two ends of the connecting rod are movably connected to the first connecting groove and the second connecting groove, respectively, and the two connecting rods are arranged in a figure-eight shape. A second water outlet is provided on the outer protective plate at a position opposite to the first water outlet. A flow-blocking device is provided at the inlet end of the fire hydrant body. The flow-blocking device includes a flow-blocking shell with a flow-blocking layer inside. The flow-blocking shell is installed at the inlet end of the fire hydrant body. A connection port is provided in the middle of the end face of the flow-blocking layer. An extension pipe is provided at the bottom of the connection port. An installation groove is provided on one side of the connection port. Second sliding grooves are provided on both sides of the bottom of the installation groove. A second spring is installed at one end of the second sliding groove. A second slider is connected to one end of the second spring. The second slider and the second sliding groove are slidably connected. An opening is provided between the connection port and the extension pipe. A blocking plate is provided in the opening. The two sides of the blocking plate are connected to the second slider. A fixing plate is provided on the side wall of the blocking plate. A placement groove is provided on the end face of the fixing plate. A pressing rod is provided in the placement groove. The pressing rod is connected to the protective shell. A matching sealing plate is provided at the top of the installation groove. Both the sealing plate and the flow-blocking shell are provided with through holes for the pressing rod to pass through.

2. The outdoor fixed fire hydrant according to claim 1, characterized in that: The placement slot is equipped with a third spring, and the top of the third spring is equipped with a pressing plate, the top of which abuts against the bottom of the pressing rod.

3. The outdoor fixed fire hydrant according to claim 2, characterized in that: The fire hydrant body has a support frame installed on its outer wall. The support frame includes a fixing ring installed on the fire hydrant body. Support rods are provided around the fixing ring. The support rods are connected to the inner wall of the protective shell for support. The support frame is connected to the protective shell. The top of the pressing rod is connected to the bottom of the support frame.

4. The outdoor fixed fire hydrant according to claim 3, characterized in that: The bottom of the inner wall of the protective housing is provided with a release assembly. The release assembly includes a release housing, which is installed on the inner wall of the protective housing. A fifth spring is provided in the top of the release housing. The bottom of the fifth spring is connected to a release plate. The release plate is supported in the middle of the release housing by a plastic fixing bracket, and the fifth spring is in a pulled state. The outer wall of the protective housing is provided with a groove at the corresponding position of the release housing. The groove is provided with a mounting hole that communicates with the release housing. The mounting hole is aligned with the position of the plastic fixing bracket. A pressing rod is installed on the mounting hole. The end face of the pressing rod inside the release housing is provided with a striking head, and the other end is provided with an impact plate. A sixth spring is provided between the bottom of the impact plate and the groove. The top of the pressing rod is connected to the groove.

5. The outdoor fixed fire hydrant according to claim 4, characterized in that: The intercepting layer has four layers. The mounting grooves are arranged in four directions from top to bottom. The pressing rods are installed in each of the four directions, with one pressing rod corresponding to one layer of the intercepting layer. The rest pass through to the next layer until the last rod is connected. The top of the intercepting shell also includes fixing blocks in four directions. The fixing blocks are located on the through holes. The through holes are straight slots. The fixing blocks and the through holes are all provided with straight slots corresponding to the through holes. The top of the fixing blocks is provided with limiting plates. The limiting plates are provided with limiting holes for the pressing rods to pass through. The side walls of the fixing blocks are all provided with through holes. The pressing rods are also provided with matching holes at the positions corresponding to the through holes.

6. The outdoor fixed fire hydrant according to claim 5, characterized in that: The pressing rod includes a first pressing rod and a second pressing rod. Each of the first pressing rod and the second pressing rod has a fourth connecting groove at one end. The fourth connecting groove is connected by a plastic rod.

7. The outdoor fixed fire hydrant according to claim 4, characterized in that: The first water outlet and the second water outlet are each provided with a corresponding mounting ring. The opposite side of the mounting ring is provided with a connecting groove for the fourth spring to be installed. The two ends of the fourth spring are respectively installed into the connecting grooves at both ends. The outer protective plate is arc-shaped. The surface of the impact plate is provided with the same arc shape as the outer protective plate. The outer protective plate is hollow and filled with rubber.

8. The outdoor fixed fire hydrant according to claim 2, characterized in that: The top of the connector is provided with a third connecting groove, and the bottom of the extension tube is provided with a connecting tube that matches the third connecting groove for connection.

9. The outdoor fixed fire hydrant according to claim 7, characterized in that: The intercepting layer is provided with limiting grooves on all four sides of the top, and the bottom of the intercepting layer is provided with limiting blocks that match the limiting grooves for connection. The intercepting layer is also provided with threaded holes at the four corners.

10. The outdoor fixed fire hydrant according to claim 2, characterized in that: The blocking plate has a waterproof plate at one end, and the waterproof plate has a water passage hole that matches the opening.

Images