Corridor fire hydrant box

Abstract

The utility model belongs to the technical field of security and protection equipment, and relates to a corridor fire hydrant box. The fire hydrant box comprises a box body, a box door and a door lock assembly, the box door is hinged to the front opening of the box body; the door lock assembly comprises a lock cylinder and a lock rod which are located in the containing cavity of the box body, a tension spring is connected to the inner wall of the front end of the lock cylinder, the other end of the tension spring is connected with a movable disc, a through groove and a clamping groove are formed in the side wall of the lock cylinder, and a clamping block penetrating through the clamping groove is arranged on the movable disc. A transmission rod penetrating through the through groove to be connected to the movable disc is arranged on the side wall of the rear portion of the lock rod. A magnetic lock head is arranged at the front end of the lock rod, and a magnetic lock plate is arranged on the box door. When the box door is closed, the magnetic lock head and the magnetic lock plate are attracted, and the clamping block is pressed on the wall of the clamping groove under the action of the tension spring; when the box door is pushed, the lock rod moves backwards under the action of thrust, and the magnetic lock head and the magnetic lock plate are separated to open the box door. According to the utility model, the door of the fire hydrant cabinet can be opened easily, the opening efficiency of the door is improved, and the problem that the opening of the door of the existing fire hydrant cabinet is affected due to the fact that parts in the buckle are easy to oxidize is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of security equipment, and in particular relates to a fire hydrant box in a corridor. Background Art

[0002] Fire hydrant boxes are commonly found in the corridors of modern buildings. They are boxes used to store fire hydrants. They can be installed in open, concealed, or semi-concealed ways. Fire hydrant boxes also contain fire-fighting tools such as hoses, water guns, and alarm devices to help quickly put out fires when they occur indoors. When putting out fires indoors, you need to quickly open the door of the fire hydrant box and quickly assemble the water gun to put out the fire in time.

[0003] The fire hydrant boxes commonly seen in daily life basically have non-foldable plate-type doors, and the door and the box body mostly use a snap-on connection structure. The connection between the door and the box body can be released by pressing the snap, and then the door can be opened by turning it, and then tools such as water guns and hoses can be taken out to extinguish the fire. However, the existing fire hydrant boxes have the following shortcomings:

[0004] 1) Because the buckle contains metal parts, over time, the metal parts are easily oxidized, making the buckle difficult to press, which will affect the opening efficiency of the door and delay the opportunity to extinguish the fire;

[0005] 2) The door takes up a lot of space when it is turned and opened. In some narrow corridors, it cannot even be fully opened, which makes it inconvenient to quickly take out the fire-fighting tools and affects the passage of people, thereby delaying the fire-fighting opportunity and affecting the fire-fighting efficiency and the efficiency of personnel evacuation. Utility Model Content

[0006] In view of the deficiencies existing in the related art, the utility model provides a corridor fire hydrant box, aiming to solve the problems mentioned in the above background technology.

[0007] The utility model provides a fire hydrant box in a corridor, comprising:

[0008] A box body having a accommodating cavity with a front opening;

[0009] A box door, which is hinged at the front opening of the box body to open or close the accommodating cavity;

[0010] The door lock assembly includes a lock cylinder and a lock rod located in the accommodating cavity and extending along the front-to-back direction of the box body; wherein,

[0011] The lock cylinder is installed in the accommodating cavity and close to the opening end of the box door; a tension spring is connected to the inner wall of the lock cylinder close to the front opening of the box body, and the other end of the tension spring is connected to the movable disk; a through groove and a clamping groove are respectively formed on the side wall of the lock cylinder; a clamping block is convexly provided on the movable disk and is inserted into the clamping groove;

[0012] The lock rod is arranged beside the lock cylinder, and a transmission rod is convexly arranged on the side wall of the rear part of the lock rod, and the transmission rod passes through the through slot and is connected to the movable disk; a magnetic lock head is arranged at the front end of the lock rod, and a magnetic lock piece is arranged correspondingly on the inner wall of the box door;

[0013] When the box door is closed, the magnetic lock head and the magnetic lock plate are docked and attracted, and the card block is pressed against the slot wall on the side close to the front opening of the box body under the action of the tension spring; when the opening end of the box door is pushed, the lock rod moves toward the rear side of the box body under the action of the thrust and drives the movable disk to move backward synchronously through the transmission rod, so that the magnetic lock head and the magnetic lock plate are separated, thereby realizing the opening of the box door.

[0014] In some embodiments, the box door includes a first door body and a second door body hinged to each other; the end of the first door body away from the second door body is a connecting end, and the connecting end is hinged to the front opening of the box body; the end of the second door body away from the first door body is an opening end; when the opening end of the second door body is pushed, the first door body and the second door body both rotate outward to open the box door.

[0015] In some embodiments, a slide extending along the left and right directions of the box body is provided at the top of the front opening of the box body, and a slide groove is recessed on the bottom surface of the slide; a support rod is protruded from the top of the second door body, and the top of the support rod is inserted in the slide groove; when the second door body moves, it drives the support rod to slide in the slide groove.

[0016] In some embodiments, the box door also includes a transfer door panel; one end of the transfer door panel is hinged at the front opening of the box body, and the other end is hinged to the connecting end of the first door body; a support rod is protruding from the top of the first door body, and the top of the support rod is inserted in the slide groove; when the opening end of the second door body is pushed, the first door body, the second door body, and the transfer door panel all rotate, and drive the two support rods to slide in the slide groove.

[0017] In some embodiments, a bearing is sleeved on the top of the support rod, a roller is sleeved outside the bearing, and the outer diameter of the roller matches the groove width of the slide groove.

[0018] In some of the embodiments, a mounting frame is provided on the side wall of the accommodating chamber near the opening end of the box door, and a vertically extending rotating shaft is installed on one side of the mounting frame; a winding drum is provided in the accommodating chamber, the axial direction of the winding drum is perpendicular to the axial direction of the rotating shaft, and one end of the winding drum is sleeved on the rotating shaft to be rotatably connected to the mounting frame; a water pipe is wound around the winding drum, one end of the water pipe is connected to the fire hydrant, and the other end is connected to the second water gun.

[0019] In some embodiments, a placement rack is provided in the accommodating cavity, and the placement rack includes two oppositely arranged semicircular core columns, which are connected to the rear side wall of the box body and extend along the front and rear direction of the box body; the water hose is wrapped around the two semicircular core columns in layers, one end of the water hose is connected to the fire hydrant, and the other end is connected to the second water gun.

[0020] In some embodiments, the door lock assembly also includes a lock shell, which is connected to the side wall of the accommodating cavity near the opening end of the door, and has an installation cavity in the lock shell, in which the lock cylinder is installed; an installation groove is opened on the side wall of the lock shell corresponding to the lock cylinder groove.

[0021] In some of the embodiments, a handle is recessed on the outer wall of the door near the opening end of the door.

[0022] Based on the above technical scheme, the corridor fire hydrant box in the embodiment of the utility model can realize the easy opening of the fire hydrant box door, improve the efficiency of opening the box door, and reduce the occupied space during and after the box door is opened, which is convenient for people to pass and easy to quickly remove fire-fighting tools in the limited corridor space, thereby solving the shortcomings of the existing fire hydrant box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the fire hydrant box in the corridor of the utility model (the box door is half-opened);

[0025] Figure 2 It is a structural cutaway diagram of the fire hydrant box in the corridor of the utility model (the box door is half-opened);

[0026] Figure 3 for Figure 2 A magnified view of the structure at A;

[0027] Figure 4 This is a schematic diagram of the internal structure of the fire hydrant box in the corridor of the utility model;

[0028] Figure 5 The first is a structural cutaway diagram of the door lock assembly in the fire hydrant box in the corridor of the present invention;

[0029] Figure 6 for Figure 5 A magnified view of the structure at B in FIG.

[0030] Figure 7 This is a second structural cutaway diagram of the door lock assembly in the corridor fire hydrant box of the present invention.

[0031] In the figure: 1. box body; 101. accommodating cavity; 2. box door; 21. first door body; 22. second door body; 23. transfer door panel; 24. magnetic lock piece; 25. handle; 3. lock cylinder; 31. through groove; 32. card slot; 4. tension spring; 5. movable disk; 51. card block; 6. lock rod; 61. transmission rod; 62. magnetic lock head; 7. support rod; 8. roller; 9. slide; 91. slide slot; 10. mounting frame; 11. take-up drum; 12. placement frame; 13. lock shell; 131. mounting cavity; 132. mounting slot. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "top", "bottom", "inside", "outside", "left", "right", "front", "back", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] refer to Figure 1-Figure 7As shown, the corridor fire hydrant box of the utility model comprises a box body 1, a box door 2 and a door lock assembly. The box body 1 has a front-opening accommodating chamber 101, and the accommodating chamber 101 is used to store various fire extinguishing devices and tools including fire hydrants. The box door 2 is hinged at the front opening of the box body 1, and the opening or closing of the accommodating chamber 101 of the box body 1 is realized by opening or closing the box door 2. The door lock assembly comprises a lock cylinder 3 and a lock rod 6 located in the accommodating chamber 101 of the box body 1 and extending along the front-back direction of the box body 1.

[0037] The lock cylinder 3 is installed in the accommodating cavity 101 of the box body 1 and close to the opening end of the box door 2. A tension spring 4 is connected to the inner wall of the lock cylinder 3 close to the front opening of the box body 1. The tension spring 4 extends along the axial direction of the lock cylinder 3, that is, the front-back direction of the box body 1; the other end of the tension spring 4 is connected to a movable disk 5, and the movable disk 5 can reciprocate along the axial direction of the lock cylinder 3. A through groove 31 and a clamping groove 32 are respectively provided on the side wall of the lock cylinder 3, and the groove length directions of the through groove 31 and the clamping groove 32 are consistent with the axial direction of the lock cylinder 3. A clamping block 51 is convexly provided on the movable disk 5, and the clamping block 51 is inserted into the clamping groove 32; when the movable disk 5 reciprocates along the axial direction of the lock cylinder 3, the movable disk 5 drives the clamping block 51 to move forward and backward in the clamping groove 32. The lock rod 6 is arranged beside the lock cylinder 3, and a transmission rod 61 is convexly provided on the rear part of the lock rod 6, that is, on the side wall away from the front opening of the box body 1, and the transmission rod 61 passes through the through groove 31 and is connected to the movable disk 5.

[0038] Further explanation, the movable plate 5 can move toward the front opening direction of the box body 1 under the tension of the tension spring 4 until the block 51 is pressed against the side wall of the slot 32 near the front opening of the box body 1; and when the lock rod 6 moves toward the rear side of the box body 1 under the action of external force, the lock rod 6 drives the movable plate 5 to overcome the tension of the tension spring 4 and move backward synchronously through the transmission rod 61; after the external force is removed, the movable plate 5 drives the lock rod 6 to move toward the front opening direction of the box body 1 under the tension of the tension spring 4 until the block 51 is pressed against the front end side wall of the slot 32. It can be understood that the size of the slot 32 meets the space required for the block 51 to move forward and backward, and the size of the through slot 31 meets the space required for the transmission rod 61 to move forward and backward.

[0039] A magnetic lock head 62 is provided at the front end of the lock rod 6, i.e., the end close to the front opening of the box body 1, and a magnetic lock piece 24 is correspondingly provided on the inner wall of the box door 2. When the box door 2 is closed, the magnetic lock head 62 on the lock rod 6 and the magnetic lock piece 24 on the box door 2 are docked and attracted, and at this time, the clamping block 51 is pressed against the groove wall of the clamping groove 32 close to the front opening of the box body 1 under the tension of the tension spring 4. When the opening end of the box door 2 is pushed, the lock rod 6 moves toward the rear side of the box body 1 under the action of the thrust and drives the movable disk 5 to move backward synchronously through the transmission rod 61, and the magnetic lock head 62 and the magnetic lock piece 24 are staggered and no longer attracted, thereby separating the magnetic lock head 62 from the magnetic lock piece 24, and then the box door 2 can be opened.

[0040] The above-mentioned illustrative embodiment, through the setting of the door lock assembly and the matching setting of the magnetic lock head 62 and the magnetic lock plate 24, realizes the easy opening of the fire hydrant box door 2, shortens the opening time of the box door 2, and significantly improves the opening efficiency of the box door 2. Moreover, since the magnetic parts will not be oxidized, the possibility of the box door 2 being stuck or failing to open is greatly reduced, thereby solving the problem of the existing fire hydrant box that the metal parts in the buckle are easily oxidized, which affects the opening of the box door 2 and delays the fire extinguishing opportunity.

[0041] refer to Figure 1-Figure 2 As shown, in some embodiments, the box door 2 includes a first door body 21 and a second door body 22 that are hinged to each other; the end of the first door body 21 away from the second door body 22 is a connection end, and the connection end of the first door body 21 is hinged to the front opening of the box body 1; the end of the second door body 22 away from the first door body 21 is an opening end. When the opening end of the second door body 22 is pushed, the first door body 21 and the second door body 22 are both rotated outward, and the second door body 22 is also moved to one side under the drive of the first door body 21, thereby realizing the opening of the box door 2. This exemplary embodiment realizes the foldable setting of the box door 2, thereby reducing the occupied space during and after the box door 2 is opened, and the box door 2 can be fully opened in the limited corridor space to fully open the box body 1 accommodating cavity 101, which is convenient for quickly taking out the fire extinguishing tools and convenient for people to pass, thereby avoiding delaying the fire extinguishing time and improving the fire extinguishing efficiency and the evacuation efficiency of people.

[0042] refer to Figure 1-Figure 3 As shown, in some embodiments, a slide 9 extending in the left-right direction of the box body 1 is provided at the top of the front opening of the box body 1, and a slide groove 91 is concavely provided on the bottom surface of the slide 9. A support rod 7 is convexly provided at the top of the second door body 22, and the position of the support rod 7 is close to the opening end of the second door body 22. The top of the support rod 7 is inserted into the slide groove 91; when the second door body 22 moves, the support rod 7 thereon is driven to slide in the slide groove 91. This exemplary embodiment ensures the consistency and stability of the movement state of the second door body 22 each time the box door 2 is opened through the matching arrangement of the support rod 7 and the slide groove 91.

[0043] refer to Figure 1-Figure 2As shown, in some embodiments, the box door 2 further includes a transfer door panel 23; one end of the transfer door panel 23 is hinged at the front opening of the box body 1, and the other end is hinged to the connecting end of the first door body 21; thus, through the rotational setting of the transfer door panel 23, the connecting end of the first door body 21 can be rotated and moved. Further, a support rod 7 is also convexly provided at the top of the first door body 21, and the position of the support rod 7 is close to the connecting end of the first door body 21, and the top of the support rod 7 is inserted into the slide groove 91. When the opening end of the second door body 22 is pushed, the first door body 21, the second door body 22, and the transfer door panel 23 are all rotated, and the two support rods 7 are driven to slide in the slide groove 91. This exemplary embodiment further improves the opening flexibility of the folding box door 2 and the opening degree of the accommodating cavity 101 of the box body 1 through the setting of the transfer door panel 23.

[0044] refer to Figure 3 As shown, in some embodiments, a bearing is sleeved on the top of the support rod 7, and a roller 8 is sleeved on the outside of the bearing, and the outer diameter of the roller 8 matches the groove width of the slide groove 91; it can be understood that when the support rod 7 slides back and forth in the slide groove 91, the roller 8 rolls relative to the surface of the slide groove 91 to avoid wear as much as possible. This exemplary embodiment avoids the wear that may occur when the box door 2 is repeatedly opened and closed and the support rod 7 slides back and forth in the slide groove 91 through the arrangement of the bearing and the roller 8, thereby improving the smoothness and stability of the movement of the first door body 21 and the second door body 22.

[0045] refer to Figure 1 , Figure 4 As shown, in some embodiments, a mounting frame 10 is provided on the side wall near the opening end of the door 2 in the accommodating chamber 101, and a vertically extending rotating shaft is installed on one side of the mounting frame 10. A reel 11 is provided in the accommodating chamber 101, and the axial direction of the reel 11 is perpendicular to the axial direction of the rotating shaft. One end of the reel 11 is sleeved on the rotating shaft to be rotatably connected with the mounting frame 10, so that the entire reel 11 can rotate around the rotating shaft. The water pipe for fire fighting is wound on the reel 11, one end of the water pipe is connected to the fire hydrant, and the other end is connected to the first water gun; the first water gun connected to the water pipe is usually a small water gun. This illustrative embodiment realizes the regular storage of the water pipe; when the fire needs to be extinguished and the fire is not large, the first water gun is directly taken to spray the fire, thereby avoiding the need to assemble the water pipe and the water gun on site, and improving the fire extinguishing efficiency; and because the reel 11 can be rotated outward as a whole, it is convenient to adjust the pulling direction of the water pipe, and improve the accuracy of the spraying direction during fire extinguishing.

[0046] refer to Figure 4As shown, in some embodiments, a placement rack 12 is provided in the accommodating chamber 101, and the placement rack 12 includes two oppositely arranged semicircular core columns, which are connected to the rear side wall of the box body 1 and extend in the front-to-back direction of the box body 1. The fire-fighting hose is wound around the two semicircular core columns in layers, one end of the hose is connected to the fire hydrant, and the other end is connected to the second water gun; the second water gun connected to the hose is usually a larger water gun. This illustrative embodiment realizes the regular storage of the hose; when the fire needs to be extinguished and the fire is large, the hose is directly removed from the placement rack 12 and sprayed to the fire through the second water gun, thereby avoiding the need to assemble the hose and water gun on site and improving the fire-fighting efficiency.

[0047] refer to Figure 1-Figure 2 , Figure 5-Figure 7 As shown, in some embodiments, the door lock assembly further includes a lock housing 13, which is connected to the side wall of the accommodating cavity 101 near the opening end of the door 2; the lock housing 13 has an installation cavity 131, and the lock cylinder 3 is installed in the installation cavity 131. An installation groove 132 is provided on the side wall of the lock housing 13 corresponding to the through groove 31 of the lock cylinder 3, and the transmission rod 61 on the lock rod 6 passes through the installation groove 132 and the through groove 31 and is connected to the movable disk 5. This exemplary embodiment shields and protects the lock cylinder 3 through the arrangement of the lock housing 13.

[0048] refer to Figure 1 As shown, in some embodiments, a handle portion 25 is recessed on the outer wall of the door 2 near the opening end of the door 2 to facilitate operations such as pushing and pulling the door 2.

[0049] Combination Figure 1-Figure 7 , briefly describe the steps of opening the door 2 of the corridor fire hydrant box of the utility model:

[0050] 1) Push the opening end of the second door panel, the lock rod 6 is moved toward the rear side of the box body 1 by the thrust, and the movable plate 5 is driven to move backward synchronously by the transmission rod 61, and the card block 51 also moves in the card slot 32, and the magnetic lock piece 24 on the box door 2 and the magnetic lock head 62 on the lock rod 6 begin to stagger with each other until they are no longer attracted, at this time, the second door panel, the first door panel and the transfer door panel 23 all rotate, and the box door 2 opens to one side;

[0051] 2) When the second door panel is no longer in contact with the lock rod 6, the movable plate 5 drives the lock rod 6 to move toward the front opening of the box body 1 through the transmission rod 61 under the tension of the tension spring 4, until the clamping block 51 is pressed against the side wall of the clamping groove 32 close to the front opening of the box body 1, and the lock rod 6 is reset;

[0052] 3) Continue to pull the second door panel to one side, and the box door 2 continues to open until the first door panel and the second door panel are in contact with each other, completing the opening of the box door 2 of the corridor fire hydrant box; during the opening process of the box door 2, the support rods 7 on the first door panel and the second door panel always move along the slide groove 91, thereby making the opening of the box door 2 stable and controllable.

[0053] To sum up, the corridor fire hydrant box of the utility model realizes the easy opening of the fire hydrant box door 2 through the setting of the door lock assembly and the matching setting of the magnetic lock head 62 and the magnetic lock plate 24, significantly improves the opening efficiency of the box door 2, and solves the problem of the existing fire hydrant box that the metal parts in the buckle are easily oxidized, which affects the opening of the box door 2 and delays the fire extinguishing opportunity; through the setting of the first door body 21, the second door body 22 and the transfer door panel 23, the foldable setting of the box door 2 is realized, which reduces the occupied space during and after the opening of the box door 2, facilitates the passage of personnel, and facilitates the quick removal of fire-fighting tools in the limited corridor space, thereby avoiding delaying the fire extinguishing opportunity and improving the fire extinguishing efficiency and the efficiency of personnel evacuation.

[0054] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0055] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A fire hydrant box in a corridor, characterized in that: include: A box body, wherein the box body has a accommodating cavity with a front opening; A box door, the box door is hinged at the front opening of the box body to open or close the accommodating cavity; The door lock assembly comprises a lock cylinder and a lock rod which are located in the accommodating cavity and extend along the front-rear direction of the box body; wherein, The lock cylinder is installed in the accommodating cavity and close to the opening end of the box door; a tension spring is connected to the inner wall of the lock cylinder close to the front opening of the box body, and the other end of the tension spring is connected to the movable disk; a through groove and a clamping groove are respectively formed on the side wall of the lock cylinder; a clamping block is convexly provided on the movable disk and is inserted into the clamping groove; The lock rod is arranged beside the lock cylinder, and a transmission rod is convexly arranged on the side wall of the rear part of the lock rod, and the transmission rod passes through the through slot and is connected to the movable disk; a magnetic lock head is arranged at the front end of the lock rod, and a magnetic lock sheet is correspondingly arranged on the inner wall of the box door; When the box door is closed, the magnetic lock head and the magnetic lock plate are docked and attracted, and the card block is pressed against the slot wall on the side of the card slot close to the front opening of the box body under the action of the tension spring; when the opening end of the box door is pushed, the lock rod moves toward the rear side of the box body under the action of the thrust and drives the movable disk to move backward synchronously through the transmission rod, so that the magnetic lock head is separated from the magnetic lock plate, thereby realizing the opening of the box door.

2. The fire hydrant box in the corridor according to claim 1, characterized in that: The box door includes a first door body and a second door body hinged to each other; an end of the first door body away from the second door body is a connecting end, and the connecting end is hinged at the front opening of the box body; an end of the second door body away from the first door body is an opening end; when the opening end of the second door body is pushed, both the first door body and the second door body rotate outward to open the box door.

3. The fire hydrant box in the corridor according to claim 2, characterized in that: A slide extending along the left and right directions of the box body is provided at the top of the front opening of the box body, and a slide groove is recessed on the bottom surface of the slide body; a support rod is convexly provided at the top end of the second door body, and the top of the support rod is inserted in the slide groove; when the second door body moves, the support rod is driven to slide in the slide groove.

4. The fire hydrant box in the corridor according to claim 3 is characterized in that: The box door also includes a transfer door panel; one end of the transfer door panel is hinged at the front opening of the box body, and the other end is hinged to the connecting end of the first door body; the support rod is protruding from the top of the first door body, and the top of the support rod is inserted in the slide groove; when the opening end of the second door body is pushed, the first door body, the second door body and the transfer door panel all rotate, and drive the two support rods to slide in the slide groove.

5. The fire hydrant box in the corridor according to claim 3 or 4, characterized in that: A bearing is sleeved on the top of the support rod, and a roller is sleeved on the outside of the bearing. The outer diameter of the roller matches the groove width of the slide groove.

6. The fire hydrant box in the corridor according to claim 1, characterized in that: A mounting frame is provided on the side wall of the accommodating chamber near the opening end of the box door, and a vertically extending rotating shaft is installed on one side of the mounting frame; a winding drum is provided in the accommodating chamber, and the axial direction of the winding drum is perpendicular to the axial direction of the rotating shaft, and one end of the winding drum is sleeved on the rotating shaft to be rotatably connected to the mounting frame; a water pipe is wound around the winding drum, and one end of the water pipe is connected to the fire hydrant, and the other end is connected to the first water gun.

7. The fire hydrant box in the corridor according to claim 1, characterized in that: A placement rack is provided in the accommodating cavity, and the placement rack includes two oppositely arranged semicircular core columns, the semicircular core columns are connected to the rear side wall of the box body and extend along the front and rear direction of the box body; the water hose is arranged in layers around the two semicircular core columns, one end of the water hose is connected to the fire hydrant, and the other end is connected to the second water gun.

8. The fire hydrant box in the corridor according to claim 1, characterized in that: The door lock assembly also includes a lock shell, which is connected to the side wall of the accommodating cavity near the opening end of the door, and has an installation cavity in the lock shell, in which the lock cylinder is installed; an installation groove is opened on the side wall of the lock shell corresponding to the lock cylinder through groove.

9. The fire hydrant box in the corridor according to claim 1, characterized in that: A handle is recessed on the outer wall of the door near the opening end of the door.

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